Refrigerator

Abstract

The utility model provides a refrigerator which comprises a refrigerator body, a door body and a hinge assembly connecting the refrigerator body and the door body. The hinge assembly comprises a first shaft and a second shaft which are fixed on the refrigerator body, and a guide part and a guide part which are arranged on the door body; the first shaft is matched with the guide part, and the second shaft is matched with the guide part; the central axis of the first shaft is marked as a first central axis, and the central axis of the second shaft is marked as a second central axis; a third distance is formed between the first central shaft and the second side edge of the door body; in the process that the door body is opened to the maximum angle from the closed state, the third distance is firstly reduced, then is changed within the second amplitude change rate and then is increased; according to the refrigerator, in the early stage of opening the door body, the first side edge of the door body can be prevented from colliding with the side wall of the containing cabinet; in the middle period of opening the door body, the opening range of the door body is increased; and in the later period of opening the door body, the door front wall of the door body is prevented from colliding with the side wall of the containing cabinet.

Description

[0001] This application claims the priority of a Chinese patent application with the application number 202311266553.7 and the application title "Refrigerator" filed with the Chinese Patent Office on September 27, 2023, the entire content of which is incorporated herein by reference.

[0002] This application claims the priority of a Chinese patent application with the application number 202311628629.6 and the application title "Refrigerator" filed with the Chinese Patent Office on November 30, 2023, the entire content of which is incorporated herein by reference. Technical Field

[0003] The present invention relates to the technical field of household appliances, and particularly to a refrigerator. Background Art

[0004] An embedded refrigerator generally embeds the whole refrigerator into a customized receiving cabinet. To improve the fitting degree of the refrigerator embedded in the external receiving cabinet, the gap between the outer wall of the refrigerator and the inner wall of the receiving cabinet is generally set very small. At this time, when the refrigerator door is opened, the vertical hinge side of the rotating door is very easy to hit the inner wall of the external receiving cabinet. Due to the space limitation of the receiving cabinet, to ensure that the door body can be effectively opened, the corner of the door body cannot exceed the size of the box body too much during the door opening process.

[0005] Currently, to meet the embedded requirements, most often a double axis is set on one of the door and the box body, and a guiding structure cooperating with the double axis is set on the other to control the door to move inward while rotating and opening, so as to meet the embedded installation requirements. With the combination of the double axis and the guiding structure, the door moves inward during the opening process to ensure that the corner of the door body does not exceed the size of the box body too much during the door opening process.

[0006] When customizing the receiving cabinet in which the embedded refrigerator is embedded, it is taken as a standard that when the refrigerator door is closed, the front wall of the door is flush with the plane where the opening end of the receiving cabinet is located, so that the size of the refrigerator is adapted to the size of the receiving cabinet to achieve a hidden flat embedding installation. On the premise of ensuring that the door of the embedded refrigerator can be opened smoothly without interfering with the inner wall of the receiving cabinet, as the opening angle of the refrigerator door increases, the front wall of the door approaches the end of the adjacent receiving cabinet close to its opening; when the front wall of the door contacts the end of the adjacent receiving cabinet close to its opening, the door body is opened to the limit position. In summary, the limit angle at which the refrigerator door installed in the receiving cabinet can be opened is limited by the size of the receiving cabinet for realizing the hidden installation of the refrigerator and the gap between the outer wall of the refrigerator and the inner wall of the receiving cabinet. The limit angle at which the refrigerator door installed in the receiving cabinet can be opened is small, which is not convenient for users to take and place items. Utility Model Content

[0007] The present invention solves at least one of the many technical problems in the related art to a certain extent.

[0008] An embodiment of the present application provides a refrigerator, which includes:

[0009] A box body that defines a storage room with an access opening; the box body includes a first body side wall and a second body side wall that are oppositely arranged;

[0010] A door body that has a front door wall that is far from the box body when the door body is closed, a door side wall that is close to the first body side wall and is connected to the front door wall, and a door rear wall that is oppositely arranged to the front door wall; the door rear wall intersects with the door side wall to form a second side edge;

[0011] A hinge assembly that is close to the first body side wall and connects the box body and the door body so that the door body can rotate relative to the box body to open or close the access opening; the hinge assembly includes:

[0012] A hinge plate that includes a connecting portion connected to the box body and close to the first body side wall, and an extending portion extending forward from the connecting portion;

[0013] A first shaft and a second shaft that are arranged on the extending portion;

[0014] A guiding portion and a guiding part that are arranged on the door body and close to the door side wall; the first shaft cooperates with the guiding portion, and the second shaft cooperates with the guiding part;

[0015] The guiding portion has a guiding track line; the guiding track line extends from its end far from the door side wall first in a direction away from the front door wall and close to the door side wall, and then in a direction close to the front door wall and the door side wall;

[0016] The guiding part has a guiding track line; the guiding track line extends from its end far from the door side wall first in a direction away from the front door wall and close to the door side wall, and then in a direction close to the front door wall and the door side wall;

[0017] During the process of the door body opening from the closed state, the central axis of the first shaft moves relative to the guiding portion along its guiding track line, and the central axis of the second shaft moves relative to the guiding part along its guiding track line;

[0018] The central axis of the first shaft is denoted as the first central axis, and the central axis of the second shaft is denoted as the second central axis;

[0019] There is a third distance between the first central axis and the second side edge;

[0020] During the process of the door body opening from the closed state to the maximum angle, the third distance first decreases, then changes within a second amplitude change rate, and then increases.

[0021] In the refrigerator according to the embodiment of the present application, at the initial stage of opening the door body, the second side edge of the door body is located between the first axis and the inner side wall of the receiving cabinet. By setting the third distance to be reduced, the second side edge can move toward the direction close to the first axis, which helps the second side edge to move inward and forward, thereby facilitating increasing the distance between the second side edge and the box body, so as to prevent the second side edge from colliding with the box body as much as possible, and can make the door seal move away from the box body, which is beneficial to preventing the door seal from being squeezed by the box body and extending the service life of the door seal; and is beneficial to preventing the first side edge of the door body from exceeding the side wall of the box body and colliding with the inner side wall of the receiving cabinet. At the middle stage of opening the door body, by setting the third distance to be basically unchanged, the second side edge can perform a fixed-axis rotation or an approximate fixed-axis rotation relative to the first axis, so that the movement amplitude of the side of the door body away from the second side edge can be increased, which is beneficial to increasing the opening range of the door body, providing a larger operating space for the user, and facilitating the user to take and place items in the storage chamber laterally in front of the access opening when the door body is in the open state. At the middle stage of opening the door body, due to the large rotation of the door body, the second side edge moves to the side of the first axis facing away from the receiving cabinet. At the later stage of opening the door body, by setting the third distance to be increased, the second side edge can further move away from the first axis, that is, the second side edge moves inward, which is beneficial to preventing the front wall of the door body from colliding with the side edge of the receiving cabinet. Therefore, the refrigerator according to the embodiment of the present application can be opened to a larger limit angle, which is convenient for the user to take and place items. Description of the Drawings

[0022] Figure 1 is a perspective view of the refrigerator of the present invention;

[0023] Figure 2 is a top view of the refrigerator of the present invention;

[0024] Figure 3 is a partial structural schematic diagram of the door body coordinate system X1O1Y1 of the door body of the refrigerator of the present invention;

[0025] Figure 4 is a partial structural schematic diagram of the door body of the refrigerator of the present invention;

[0026] Figure 5 is a relative position schematic diagram of the guiding track line, the guiding track line and the axis midpoint track line on the door body of the refrigerator of the present invention;

[0027] Figure 6 is a view of the hinge when the door body of the refrigerator of the present invention is in the closed state;

[0028] Figure 7 is the refrigerator of the present invention when the door body is opened to when the view of the hinge;

[0029] Figure 8is the view of the hinge when the door of the refrigerator of the present invention is opened to ;

[0030] Figure 9 is the view of the hinge when the door of the refrigerator of the present invention is opened to ;

[0031] Figure 10 is the view of the hinge when the door of the refrigerator of the present invention is opened to ;

[0032] Figure 11 is the view of the hinge when the door of the refrigerator of the present invention is opened to ;

[0033] Figure 12 is the view of the hinge when the door of the refrigerator of the present invention is opened to ;

[0034] Figure 13 is the view of the hinge when the door of the refrigerator of the present invention is opened to ;

[0035] Figure 14 is the view of the hinge when the door of the refrigerator of the present invention is opened to ;

[0036] Figure 15 is the schematic diagram of the movement trajectories of the first side edge W, the second side edge N and the side sealing edge F of the refrigerator of the present invention relative to the hinge;

[0037] Figure 16 is the schematic diagram of the movement of the first shaft relative to the guiding part and the second shaft relative to the guiding part of the refrigerator of the present invention;

[0038] Figure 17 is the schematic diagram of the positions of the first shaft relative to the guiding part and the second shaft relative to the guiding part when the door of the refrigerator of the present invention is opened to ;

[0039] Figure 18 is the schematic diagram of the positions of the first shaft relative to the guiding part and the second shaft relative to the guiding part when the door of the refrigerator of the present invention is opened to ;

[0040] Figure 19 is the schematic diagram of the positions of the first shaft relative to the guiding part and the second shaft relative to the guiding part when the door of the refrigerator of the present invention is opened to ;

[0041] Figure 20 is the schematic diagram of the positions of the first shaft relative to the guiding part and the second shaft relative to the guiding part when the door of the refrigerator of the present invention is opened to ;

[0042] Figure 21 It is a schematic diagram of the positions of the first shaft relative to the guiding part and the second shaft relative to the guiding part when the door body of the refrigerator of the present invention is opened to ;

[0043] Figure 22 It is a schematic diagram of the positions of the first shaft relative to the guiding part and the second shaft relative to the guiding part when the door body of the refrigerator of the present invention is opened to ;

[0044] Figure 23 It is a schematic diagram of the positions of the first shaft relative to the guiding part and the second shaft relative to the guiding part when the door body of the refrigerator of the present invention is opened to ;

[0045] Figure 24 It is a schematic diagram of the positions of the first shaft relative to the guiding part and the second shaft relative to the guiding part when the door body of the refrigerator of the present invention is opened to ;

[0046] Figure 25 It is a schematic diagram of the relative positions of the first shaft relative to the guiding part and the second shaft relative to the guiding part during the second-stage opening of the door body of the refrigerator of the present invention;

[0047] Figure 26 It is a schematic diagram of the relative positions of the first shaft relative to the guiding part and the second shaft relative to the guiding part during the process of the door body of the refrigerator of the present invention being opened from G5 to G6 in the second stage;

[0048] Figure 27 It is a schematic diagram of the relative positions of the first shaft relative to the guiding part and the second shaft relative to the guiding part during the third-stage opening of the door body of the refrigerator of the present invention;

[0049] Figure 28 It is a schematic diagram of the relative positions of the door body and the cabinet when the door body of the refrigerator of the present invention is closed;

[0050] Figure 29 It is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator of the present invention is ;

[0051] Figure 30 It is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator of the present invention is ;

[0052] Figure 31 It is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator of the present invention is 90°;

[0053] Figure 32 It is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator of the present invention is ;

[0054] Figure 33 Schematic diagram of the movement of the first shaft relative to the guiding part and the second shaft relative to the guiding part during the opening process of the door body of an existing refrigerator compared with the refrigerator of the present invention;

[0055] Figure 34 Schematic diagram of the relative positions of the door body and the cabinet body at each stage when an existing refrigerator compared with the refrigerator of the present invention is opened from the closed state to the maximum angle;

[0056] Figure 35 Comparison diagram of the position of the door body of the refrigerator of the present invention when opened to G1 and the position of the door body when rotated from the closed state around the rotation axis of the midpoint I of its closing axis to G1;

[0057] Figure 36 Comparison diagram of the position of the door body of the refrigerator of the present invention when opened to G2 and the position of the door body when rotated from the state of being opened to G1 around the rotation axis of the midpoint I of its opening to G2 to G2;

[0058] Figure 37 Comparison diagram of the position of the door body of the refrigerator of the present invention when opened to G3 and the position of the door body when rotated from the state of being opened to G2 around the rotation axis of the midpoint I of its opening to G3 to G3;

[0059] Figure 38 Comparison diagram of the position of the door body of the refrigerator of the present invention when opened to G4 and the position of the door body when rotated from the state of being opened to G3 around the rotation axis of the midpoint I of its opening to G4 to G4;

[0060] Figure 39 Comparison diagram of the position of the door body of the refrigerator of the present invention when opened to G5 and the position of the door body when rotated from the state of being opened to G4 around the rotation axis of the midpoint I of its opening to G5 to G5;

[0061] Figure 40 Comparison diagram of the position of the door body of the refrigerator of the present invention when opened to G6 and the position of the door body when rotated from the state of being opened to G5 around the rotation axis of the midpoint I of its opening to G6 to G6;

[0062] Figure 41 Comparison diagram of the position of the door body of the refrigerator of the present invention when opened to G7 and the position of the door body when rotated from the state of being opened to G6 around the rotation axis of the midpoint I of its opening to G7 to G6;

[0063] Figure 42 Comparison diagram of the position of the door body of the refrigerator of the present invention when opened to G max and the position of the door body when rotated from the state of being opened to G6 around the rotation axis of the midpoint I of its opening to G max to G max ;

[0064] Figure 43The opening angle of the door body of the refrigerator of the present invention is and a comparison diagram of the translational motion at two angles;

[0065] Figure 44 a schematic diagram of the relative position relationship between the midpoint locus line of the axis of the refrigerator of the present invention and the middle plane of the door body;

[0066] Figure 45 a schematic diagram of the motion of the first axis relative guiding part and the second axis relative guiding part of the refrigerator of the present invention and their relative positions with respect to the first angular bisecting plane and the second angular bisecting plane;

[0067] Figure 46 a schematic diagram of the relative positions of the midpoint of the axis, the first angular bisecting plane and the second angular bisecting plane when the door body of the refrigerator of the present invention is opened to the fourth angle G4;

[0068] Figure 47 a schematic diagram of the relative positions of the first axis, the second axis, the first angular bisecting plane and the second angular bisecting plane when the door body of the refrigerator of the present invention is in the closed state;

[0069] Figure 48 a schematic diagram of the structure when the door body with a guiding track line of another setting form of the refrigerator of the present invention is closed;

[0070] Figure 49 a schematic diagram of another setting form of the second hinge member of the refrigerator of the present invention;

[0071] Figure 50 a schematic diagram of another setting form of the second hinge member of the refrigerator of the present invention;

[0072] Figure 51 a schematic diagram of each parameter when the door body of the refrigerator of the present invention is in the closed state;

[0073] Figure 52 a schematic diagram of each parameter when the door body of the refrigerator of the present invention is opened to the maximum angle;

[0074] Figure 53 a schematic diagram when the door body of the refrigerator of the present invention is in the closed state in the coordinate system XOY;

[0075] Figure 54 a schematic diagram when the door body of the refrigerator of the present invention rotates by θ° in the coordinate system XOY;

[0076] Figure 55 a schematic diagram when the first axis of the door body of the refrigerator of the present invention moves along an arc;

[0077] Figure 56 a schematic diagram when the door body of the refrigerator of the present invention is in the closed state in the coordinate system XOY;

[0078] Figure 57 It is a schematic diagram when the door body of the refrigerator of the present invention is opened to the maximum angle in the coordinate system XOY;

[0079] Figure 58 It is a schematic diagram when the door body of the refrigerator of the present invention is opened at an acute angle in the coordinate system XOY;

[0080] Figure 59 It is a schematic diagram when the door body of the refrigerator of the present invention is opened at a right angle in the coordinate system XOY;

[0081] Figure 60 It is a partial structural schematic diagram when the door body of the refrigerator is in a closed state in some embodiments of the present invention;

[0082] Figure 61 It is a partial structural schematic diagram when the door body of the refrigerator is opened to 30° in some embodiments of the present invention;

[0083] Figure 62 It is a partial structural schematic diagram when the door body of the refrigerator is opened to 70° in some embodiments of the present invention;

[0084] Figure 63 It is a partial structural schematic diagram when the door body of the refrigerator is opened to 80° in some embodiments of the present invention;

[0085] Figure 64 It is a partial structural schematic diagram when the door body of the refrigerator is opened to 110° in some embodiments of the present invention;

[0086] Figure 65 It is a partial structural schematic diagram when the door body of the refrigerator is opened to 120° in some embodiments of the present invention;

[0087] Figure 66 It is a schematic diagram of the change trend of the third distance and the fourth distance during the opening process of the door body of the refrigerator in some embodiments of the present invention;

[0088] Figure 67 It is a schematic diagram of the change trend of the ratio of the fourth distance to the third distance during the opening process of the door body of the refrigerator in some embodiments of the present invention;

[0089] Figure 68 It is a schematic diagram of the change trend of the fifth distance and the sixth distance during the opening process of the door body of the refrigerator in some embodiments of the present invention;

[0090] Figure 69 It is a schematic diagram of the change trend of the ratio of the sixth distance to the fifth distance during the opening process of the door body of the refrigerator in some embodiments of the present invention;

[0091] Figure 70Schematic diagram of the changing trends of the seventh distance and the eighth distance during the opening process of the door body of the refrigerator in some embodiments of the present invention;

[0092] Figure 71 Schematic diagram of the changing trend of the ratio of the eighth distance to the seventh distance during the opening process of the door body of the refrigerator in some embodiments of the present invention;

[0093] Figure 72 Schematic diagram of the changing trend of the included angle ω during the opening process of the door body of the refrigerator in some embodiments of the present invention.

[0094] In each of the above figures: the cabinet body 10; the accommodating cabinet 100; the door body 30; the front wall 31 of the door; the side wall 32 of the door; the first side edge W; the second side edge N; the side sealing edge F; the hinge plate 40; the connecting portion 401; the extending portion 402; the door seal 5;

[0095] The first shaft 41; the second shaft 42;

[0096] The first central axis P; the second central axis Q; the reference plane M0; the first reference plane M1; the second reference plane M2;

[0097] The guiding portion 50; the guiding track line S; the guiding starting point P0; the first guiding point P1; the second guiding point P2; the third guiding point P3; the fourth guiding point P4; the fifth guiding point P5; the sixth guiding point P6; the seventh guiding point P7; the eighth guiding point P8;

[0098] The guiding portion 60; the guiding track line K; the guiding starting point Q0; the first guiding point Q1; the second guiding point Q2; the third guiding point Q3; the fourth guiding point Q4; the fifth guiding point Q5; the sixth guiding point Q6; the seventh guiding point Q7; the eighth guiding point Q8. Detailed implementation manners

[0099] Next, the present invention will be specifically described through exemplary implementation manners. However, it should be understood that, without further description, the elements, structures, and features in one implementation manner can also be beneficially combined with those in other implementation manners.

[0100] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0101] The terms "first", "second", "third", "fourth", and "fifth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", "fourth", or "fifth" may explicitly or implicitly include one or more of such features.

[0102] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected", and "coupled" should be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0103] In the following, embodiments of the present application will be described in detail with reference to the accompanying drawings. In the drawings, the side facing the user when the refrigerator is in use is defined as the front side, and the opposite side is defined as the rear side.

[0104] Referring to Figure 1 , the refrigerator includes a cabinet 10 having a storage compartment and a door 30 connected to the cabinet 10 to open and close the storage compartment.

[0105] In some embodiments of the present application, the cabinet 10 defines a plurality of storage compartments for storing items. An access opening is formed at the front end of the storage compartment for placing food into or taking food out of the storage compartment; the refrigerator has a refrigeration device for supplying cold air to the storage compartment to store the items rotating in the storage compartment at a low temperature. A rotatable door 30 is provided on the cabinet 10 to open or close the access opening of the storage compartment.

[0106] Specifically, the door 30 is rotatably connected to the cabinet 10 by an upper hinge assembly and a lower hinge assembly.

[0107] In some embodiments of the present application, the hinge assembly includes a first hinge member and a second hinge member, and the first hinge member cooperates with the second hinge member and is capable of relative rotation.

[0108] The box body 10 includes a first body side wall and a second body side wall which are oppositely arranged (i.e., the left side wall and the right side wall of the box body 10); the first hinge member is arranged on the box body 10 and close to the first body side wall, and the second hinge member is arranged at the end of the door body 30 close to the first hinge member. The first hinge member is matched with the second hinge member to allow the box body 10 and the door body 30 to rotate relative to each other. The door body 30 has a front door wall 31 far from the box body 10 when the door body 30 is closed, a door rear wall 33 oppositely arranged with the front door wall 31, and a door side wall 32 close to the first hinge member and connected with the front door wall 31. For example, when the first hinge member is located on the right side of the box body 10, the right side surface of the door body 30 is the door side wall 32 when the door body 30 is closed; when the first hinge member is located on the left side of the box body 10, the left side wall of the door body 30 is the door side wall 32 when the door body 30 is closed.

[0109] The front door wall 31 and the door side wall 32 of the door body 30 intersect to form a first side edge W, and the door side wall 32 and the door rear wall 33 intersect to form a second side edge N. When the door body 30 is closed, the first side edge W is located on the side of the second side edge N far from the box body 10. It should be noted that when both the front door wall 31 and the door side wall 32 are planes, the intersection line of the two planes is the theoretical first side edge W (similarly, the theoretical second side edge N is the intersection line of the two planes of the door side wall 32 and the door rear wall 33); in actual production and processing settings, the intersection of the front door wall 31 and the door side wall 32 is provided with a rounded corner transition, so a curved surface is formed at the intersection of the front door wall 31 and the door side wall 32; on the curved surface at the intersection of the front door wall 31 and the door side wall 32, any straight line extending along the height direction of the door body 30 can represent the first side edge W (the same applies to the second side edge N). In this application, for the convenience of description, the theoretical first side edge W and the theoretical second side edge N are used for description. In addition, a plane passing through the centroid of the door body 30 and parallel to the front door wall 31 is denoted as the middle plane C; during the opening process of the door body 30, the middle plane C moves along with the door body 30. It should be noted here that in the related technical solutions of the present invention involving the middle plane C, the distance between the middle plane C and the front door wall 31 or the door rear wall 33 is less than the distance between the middle plane C and the plane of the access opening of the box body 10 when the door body 30 is closed. That is, in the related technical solutions of the present invention involving the middle plane C, the corresponding door rear wall 33 is located on the side of the plane of the access opening of the box body 10 far from the rear wall of the box body when the door body 30 is closed.

[0110] In some embodiments of the present application, a door seal 5 is provided on the rear wall 33 of the door; when the door body 30 is closed, the door seal 5 is in contact with the front end face of the box body surrounding the access opening, so as to effectively seal the connection between the door body 30 and the box body 10, thereby ensuring that the door body 30 seals the access opening and preventing cold air from leaking out. Optionally, the door seal 5 is annular; the edge of the door seal 5 close to the door side wall 32 and away from the front wall 31 of the door is denoted as the side seal edge F. The door seal 5 is located between the rear wall 33 of the door and the front end face of the box body, and the rear wall 33 of the door is located on the side close to the door seal 5 of the plane where the access opening of the box body 10 is located.

[0111] In some embodiments of the present application, referring to Figures 2 to 3 , the first hinge member includes a hinge plate 40, a first shaft 41 and a second shaft 42 provided on the hinge plate 40. Among them, the hinge plate 40 includes: a connecting portion 401 connected to the box body 10 and close to the first body side wall, and an extending portion 402 extending forward from the connecting portion 401. The connecting portion 401 can be fastened to the top wall of the box body 10 by fasteners such as screws, pins and bolts, and the extending portion 402 is in the shape of a horizontal plate. Specifically, for the hinge at the upper end of the door body 30, the connecting portion 401 is connected to the top wall of the box body 10. For the hinge at the lower end of the door body 30, the connecting portion 401 is connected to the front end face of the box body 10. Among them, the first shaft 41 and the second shaft 42 are formed on the extending portion 402 of the first hinge member; among them, the second shaft 42 is located on the side of the first shaft 41 away from the first body side wall.

[0112] The second hinge member includes: a guiding portion 50 and a guiding portion 60 located at the end of the door body 30 close to the first hinge member; among them, the first shaft 41 is adapted to the guiding portion 50, and the second shaft 42 is adapted to the guiding portion 60; during the process of the door body 30 rotating to open or close, the first shaft 41 moves relative to the guiding portion 50, and the second shaft 42 moves relative to the guiding portion 60.

[0113] In some embodiments of the present application, the first shaft 41 moves in a curved line relative to the door body 30 under the guiding action of the guiding portion 50, and the second shaft 42 moves in a curved line relative to the door body 30 under the guiding action of the guiding portion 60.

[0114] The first shaft 41 and the second shaft 42 are formed on the first hinge member connected to the box body 10 to form a defining shaft for guiding the movement of the door body 30. Specifically, the first shaft 41 and the second shaft 42 extend in the vertical direction (the height direction of the box body 10) to be adapted to the guiding portion 50 or the guiding portion 60 provided on the door body 30.

[0115] An embedded refrigerator is to integrally embed the refrigerator into a customized receiving cabinet. The end face of the receiving cabinet that defines its opening is denoted as the opening end face. The refrigerator is flush-mounted in the receiving cabinet. When the door body of the refrigerator is closed, the front wall 31 of the door body 30 is flush with the opening end face of the receiving cabinet. In the present invention, the first shaft 41 cooperates with the guiding portion 50, and the second shaft 42 cooperates with the guiding portion 60, so that the door body 30 moves inward by a certain distance, so that when the user opens and closes the door body 30 of the refrigerator, the door body 30 of the refrigerator will not collide with the receiving cabinet, effectively avoiding damage to the receiving cabinet or the door body of the refrigerator. In addition, when the door body 30 of the refrigerator placed in the receiving cabinet is opened from the closed state, the maximum angle that the door body 30 can open is not less than 115° (it can be set, and the maximum angle is not less than 120°), realizing that the door body of the refrigerator can be fully opened in the embedded state, which is convenient for taking items.

[0116] It should be noted that the "flush" in the above-mentioned front wall 31 being flush with the opening end face of the receiving cabinet 100 includes being on the same plane or the distance between two planes being not more than 2 mm; specifically, the front wall 31 is located on the side of the opening end face of the receiving cabinet 100 away from the access opening and the distance between the two planes is not more than 2 mm; or the front wall 31 is located on the side of the opening end face of the receiving cabinet 100 close to the access opening and the distance between the two planes is not more than 2 mm.

[0117] In some embodiments of the present application, taking the example that the first shaft 41 and the second shaft 42 are both provided on the extension portions 402 at the upper and lower ends of the door body 30, and the guiding portions 50 and the guiding portions 60 are both provided at the upper and lower ends of the door body 30 for description. It should be noted that the setting of this embodiment is not limited to being provided at both the upper and lower ends of the door body 30 at the same time, and it is set as needed to connect the door body 30 to the box body 10.

[0118] In some embodiments of the present application, as Figures 2 - 3 shown, the plane where the side surface (the first body side wall) of the box body 10 close to the hinge plate 40 is located is defined as the reference plane M0. The side of the reference plane M0 away from the storage chamber inner cavity is denoted as the outer side, and the side opposite to it and close to the storage chamber is denoted as the inner side.

[0119] When the refrigerator is placed in the receiving cabinet 100 for use, in order to prevent factors such as uneven ground of the user and deformation of the receiving cabinet 100, when setting the size of the receiving cabinet 100, the distance between the receiving cabinet 100 and the side surface of the refrigerator (the first body side wall, that is, the reference plane M0) is α`. In order to ensure the normal opening of the door body 30 of the refrigerator, during the rotation of the door body 30, its first side edge W cannot extend beyond the side surface of the box body 10 (the reference plane M0) too much, so as to avoid the first side edge W colliding with the receiving cabinet 100 and causing the door body 30 to not open normally.

[0120] In some embodiments of the present application, α` belongs to any value in 3 to 5 mm.

[0121] In some embodiments of the present application, α` = 3 mm; that is, the distance between the door side wall of the door body 30 and the receiving cabinet is 3 mm.

[0122] To meet the above requirements, the door body 30 needs to be able to move inward during rotation, so that the first side edge W does not protrude too much beyond the side surface (reference plane M0) of the box body 10. Taking the hinge plate 40 being provided on the right side of the door body 30 (in this example, the right side wall of the box body 10 is the first body side wall) as an example, the inner side is the left side, that is, the door body 30 needs to be able to move to the left; taking the hinge plate 40 being provided on the left side of the door body 30 as an example, the inner side is the right side, that is, the door body 30 needs to be able to move to the right.

[0123] In some embodiments of the present application, the central axis of the first shaft 41 is denoted as the first central axis P, and the central axis of the second shaft 42 is denoted as the second central axis Q.

[0124] In some embodiments of the present application, as Figure 3 shown, in the projection on the top wall of the box body 10, the second central axis Q is located on the side of the first central axis P away from the first body side wall and the plane where the access opening is located.

[0125] In some embodiments of the present application, in the projection on the top wall of the box body 10, the second central axis Q is located on the side of the first central axis P away from the first body side wall and the access opening, and the angle between the straight line QP where the second central axis Q and the first central axis P are located and the first body side wall belongs to any value in the range of 60° to 80°.

[0126] In some embodiments of the present application, when the door body 30 is closed, in the projection on the plane of the top wall of the box body 10, the second central axis Q is located on the side of the first central axis P away from the door side wall 32 and close to the door front wall 31, and the angle between the straight line QP where the second central axis Q and the first central axis P are located and the door front wall 31 belongs to any value in the range of 10° to 20°.

[0127] In some embodiments of the present application, the guiding portion 50 is provided as a guiding groove, and the guiding portion 60 is provided as a guiding groove. Among them, the guiding groove is a curved groove, and the guiding groove is a curved groove. The guiding groove is located on the side of the guiding groove close to the first side edge W.

[0128] In some embodiments of the present application, the central locus line of the guiding portion 50 is denoted as the guiding locus line S, and the central locus line of the guiding portion 60 is denoted as the guiding locus line K. Among them, the locus line along which the guiding portion 50 guides the relative movement of the first central axis P is the guiding locus line S, and the locus line along which the guiding portion 60 guides the relative movement of the second central axis Q is the guiding locus line K. When the guiding portion 50 is provided as a guiding groove and the guiding portion 60 is provided as a guiding groove, the central locus line of the guiding groove is denoted as the guiding locus line S, and the central locus line of the guiding groove is the guiding locus line K.

[0129] In some embodiments of the present application, along the direction from the end of the door body 30 far from the door side wall 32 to the door side wall 32, the distance between the guiding track line S and the front door wall 31 first increases and then decreases, and the distance between the guiding track line K and the front door wall 31 first increases and then decreases.

[0130] In some embodiments of the present application, the guiding track line S extends from the side far from the door side wall 32 first in the direction away from the front door wall 31 and towards the door side wall 32, and then in the direction towards the front door wall 31 and the door side wall 32; the guiding track line K is a curve, and it also extends from the side far from the door side wall 32 first in the direction away from the front door wall 31 and towards the door side wall 32, and then in the direction towards the front door wall 31 and the door side wall 32. The guiding track line S is located on the side of the guiding track line K close to the first side edge W.

[0131] Among them, the guiding track line S includes a first guiding section and a second guiding section connected to one end of the first guiding section close to the door side wall 32. The first guiding section extends from its end far from the door side wall 32 in the direction towards the door side wall 32 and away from the front door wall 31, and the second guiding section extends from the end of the first guiding section close to the door side wall in the direction towards the door side wall 32 and the front door wall 31.

[0132] The guiding track line K includes a first guiding section and a second guiding section connected to one end of the first guiding section close to the door side wall 32. The first guiding section extends from its end far from the door side wall 32 in the direction towards the door side wall 32 and away from the front door wall 31, and the second guiding section extends from the end of the first guiding section close to the door side wall in the direction towards the door side wall 32 and the front door wall 31.

[0133] In some embodiments of the present application, in combination Figure 3 As shown, in the projection on the plane where the top wall of the box body 10 (door body 30) is located, taking the door side wall 32 as the Y1 axis and the plane passing through the first side edge W and perpendicular to the door side wall 32 as the X1 axis, that is, taking the plane where the front door wall 31 is located as the X1 axis (it can be set that the front door wall 31 is perpendicular to the door side wall 32); among them, the X1 axis is perpendicular to the Y1 axis and intersects at the origin O1 (the first side edge W); taking the direction from the front door wall 31 to the door rear wall 33 as the positive direction of the Y1 axis and the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32 as the positive direction of the X1 axis, a two-dimensional door body coordinate system X1O1Y1 is formed. It should be noted that the door body coordinate system X1O1Y1 is a two-dimensional coordinate system that is stationary relative to the door body 30.

[0134] In some embodiments of the present application, in the door body coordinate system X1O1Y1, the function corresponding to the guiding track line S in the coordinate system X1O1Y1 is denoted as Y1 = F(X1); Y1 = F(X1) is a piecewise function, and this piecewise function is a continuous function; then, at each breakpoint, its left limit is equal to its right limit.

[0135] In some embodiments of the present application, in the door body coordinate system X1O1Y1, Y1 = F(X1) is as follows:

[0136]

[0137] where X 10 > X 14 > X 18 > 0; F1(X 14 ) = F2(X 14 );

[0138] Y1 = F1(X1) is the function of the first guiding segment in the coordinate system X1O1Y1;

[0139] Y1 = F2(X1) is the function of the second guiding segment in the coordinate system X1O1Y1.

[0140] Among them, the end point of the first guiding segment far from the door side wall 32 is denoted as the starting guiding point P0; the connection point of the first guiding segment and the second guiding segment is denoted as the fourth guiding point P4; the end of the second guiding segment far from the first track segment is denoted as the eighth guiding point P8. Correspondingly, in the coordinate system X1O1Y1, the coordinates of P0 are (X 10 , F1(X 10 )), the coordinates of P4 are (X 14 , F4(X 14 )), and the coordinates of P8 are (X 18 , F2(X 18 )). Among them, X 10 > X 14 > X 18 > 0.

[0141] In some embodiments of the present application, |X 10 - X 14 | : |X 14 - X 18 | > 1. The projection length of the first guiding segment on the X1 axis is greater than the projection length of the second guiding segment on the X1 axis.

[0142] In some embodiments of the present application, in the direction perpendicular to the door side wall 32, the distance |P0P4|` between the starting guiding point P0 and the fourth guiding point P4 is greater than the distance |P4P8|` between the fourth guiding point P4 and the eighth guiding point P8. That is, |P0P4|` : |P4P8|` > 1.

[0143] In some embodiments of the present application, the angle between the straight line P0P4 where the starting guiding point P0 and the fourth guiding point P4 are located and the front door wall 31 is denoted as β1; the angle between the straight line P4P8 where the fourth guiding point P4 and the eighth guiding point P8 are located and the front door wall 31 is denoted as β2; where β1 < β2; β1 ∈ (0°, 90°), β2 ∈ (0°, 90°).

[0144] In some embodiments of the present application, tanβ2 > 1 > tanβ1 > 0.

[0145] In some embodiments of the present application, the angle between the straight line P0P4 where the starting guiding point P0 and the fourth guiding point P4 are located and the side door wall 32 is denoted as β1`; the angle between the straight line P4P8 where the fourth guiding point P4 and the eighth guiding point P8 are located and the side door wall 32 is denoted as β2`; where β2` < β1`; β1` ∈ (0°, 90°), β2` ∈ (0°, 90°).

[0146] In some embodiments of the present application, tanβ1` > 1 > tanβ2` > 0.

[0147] In some embodiments of the present application, when the door body 30 is in the closed state, the first central axis P is located at the starting guiding point P0 relative to the door body 30; when the first central axis P moves to the fourth guiding point P4, the opening angle of the door body 30 is the fourth angle G4; when the first central axis P moves to the eighth guiding point P8, the opening angle of the door body 30 is the eighth angle G8 (which can be set, and the maximum angle G that the door body 30 installed in the storage cabinet 100 can open max is the eighth angle G8). Then, when the door body 30 is opened from the closed state to the fourth angle G4, the displacement of the first shaft 41 relative to the door body 30 approaching the side door wall 32 is greater than when the door body 30 is opened from the fourth angle G4 to the maximum angle G max = G8, the displacement of the first shaft 41 relative to the door body 30 approaching the side door wall 32.

[0148] In some embodiments of the present application, the slope of the straight line where the starting guiding point P0 and the fourth guiding point P4 are located is denoted as F`1, and the slope of the straight line where the fourth guiding point P4 and the eighth guiding point P8 are located is denoted as F`2; where F`2 > 0 > F`1.

[0149] In some embodiments of the present application, F`2 > 1 > |F`1| > 0. That is, the change rate of the straight line where the two end points of the first guiding segment are located is less than the change rate of the straight line where the two end points of the second guiding segment are located.

[0150] In some embodiments of the present application, the overall extension trend of the first guiding segment is flatter than the overall extension trend of the second guiding segment.

[0151] In some embodiments of the present application, F`1 < 0, and |F`1| belongs to any value in the range of 0.25 to 0.35; F`2 > 0, and F`2 belongs to any value in the range of 1.1 to 1.4. That is, the lateral length (in the X-axis direction) of the first guide line is greater than its longitudinal length (in the Y-axis direction), and the lateral length (in the X-axis direction) of the second guide line is less than its longitudinal length (in the Y-axis direction). That is, |X 10 -X 14 | > |F1(X 14 ) - F1(X 10 )|, |X 14 -X 18 | < |F2(X 18 ) - F1(X 14 )|.

[0152] In some embodiments of the present application, the second derivative of Y1 = F(X1) is denoted as F``(X1). Among them, F``(X1) > 0. That is, Y1 = F(X1) is a convex-up function. The guiding trajectory line S bulges toward the side close to the door rear wall 33.

[0153] In some embodiments of the present application, in the door body coordinate system X1O1Y1, the function corresponding to the guiding trajectory line K in the coordinate system X1O1Y1 is denoted as Y1 = K(X1); Y1 = K(X1) is a piecewise function, and this piecewise function is a continuous function; then, at each piecewise point, its left limit is equal to its right limit.

[0154] In some embodiments of the present application, in the door body coordinate system X1O1Y1, Y1 = K(X1) is as follows:

[0155]

[0156] Among them, X 10 ` > X 16 ` > X 18 ` > 0; K1(X 16 ) = K2(X 16 ).

[0157] Y1 = K1(X1) is the function of the first guiding segment in the coordinate system X1O1Y1;

[0158] Y1 = K2(X1) is the function of the second guiding segment in the coordinate system X1O1Y1.

[0159] In some embodiments of the present application, the second derivative of Y1 = K(X1) is denoted as K``(X1). Among them, K``(X1) > 0. That is, Y1 = K(X1) is a convex-up function. The guiding trajectory line K bulges toward the side close to the door rear wall 33.

[0160] In some embodiments of the present application, on the guiding trajectory line S, there are successively the starting guiding point P0, the first guiding point P1, the second guiding point P2, the third guiding point P3, the fourth guiding point P4, the fifth guiding point P5, the sixth guiding point P6, the seventh guiding point P7, and the eighth guiding point P8 that are successively closer to the door sidewall 32.

[0161] In some embodiments of the present application, the fourth guiding point P4 is the point on the guiding trajectory line S that is at the maximum distance from the front door wall 31.

[0162] In some embodiments of the present application, the guiding trajectory line S includes a first guiding line and a second guiding line connected to one end of the first guiding line closer to the door sidewall 32.

[0163] In some embodiments of the present application, the first guiding line is a straight line and the second guiding line is a curve. Among them, the second guiding point P2 is the connection point of the first guiding line and the second guiding line. That is, the guiding trajectory line S extends from the starting guiding point P0 along a straight line in a direction away from the front door wall 31 and closer to the door sidewall 32 to the second guiding point P2, then extends from the second guiding point P2 along a curve in a direction away from the front door wall 31 and closer to the door sidewall 32 to the fourth guiding point P4, and then extends from the fourth guiding point P4 along a curve in a direction closer to the front door wall 31 and the door sidewall 32 to the eighth guiding point P8.

[0164] When the subsequent movement of the first axis 41 relative to the guiding portion 50 and the second axis 42 relative to the guiding portion 60 is described, it will be described by taking the guiding trajectory line S including a straight first guiding line and a curved second guiding line as an example.

[0165] In some embodiments of the present application, the starting guiding point P0 and the eighth guiding point P8 are respectively the opposite end points of the guiding trajectory line S.

[0166] In some embodiments of the present application, on the guiding trajectory line K, there are successively the starting guiding point Q0, the first guiding point Q1, the second guiding point Q2, the third guiding point Q3, the fourth guiding point Q4, the fifth guiding point Q5, the sixth guiding point Q6, the seventh guiding point Q7, and the eighth guiding point Q8 that are successively closer to the door sidewall 32.

[0167] In some embodiments of the present application, along the direction from the end of the door body 30 away from the door sidewall 32 to the door sidewall 32, the distance between the guiding trajectory line K and the front door wall 31 first increases and then decreases. Among them, it can be set that the distance between the sixth guiding point Q6 and the front door wall 31 is the largest. The guiding trajectory line K extends from the starting guiding point Q0 along a curve in a direction away from the front door wall 31 and closer to the door sidewall 32 and successively passes through the first guiding point Q1, the second guiding point Q2, the third guiding point Q3, the fourth guiding point Q4, and the fifth guiding point Q5 to the sixth guiding point Q6, and then extends from the sixth guiding point Q6 along a curve in a direction closer to the door sidewall 32 and the front door wall 31 to the eighth guiding point Q8.

[0168] In some embodiments of the present application, referring to Figure 5 , the point with the maximum distance between the guiding trajectory line S and the front door wall 31 is the fourth guiding point P4, and the point with the maximum distance between the guiding trajectory line K and the front door wall 31 is the sixth guiding point Q6. The angle between the straight line P4Q6 where the fourth guiding point P4 and the sixth guiding point Q6 are located and the front door wall 31 is denoted as the first angle σ1.

[0169] It should be noted that the range of the line-plane angle is 0° to 90°. Relative to the front door wall 31, the straight line P4Q6 can be set to extend from the end close to the front door wall 31 to the side close to the rear door wall 33 and the side door wall 32 (such as Figure 5 the first angle σ1 shown); the straight line P4Q6 can also be set to extend from the end close to the front door wall 31 to the side close to the rear door wall 33 and away from the side door wall 32 (not shown in the figure). The first angle σ1 is the non-obtuse value of the angle formed by the straight line P4Q6 and the front door wall 31.

[0170] In some embodiments of the present application, the first angle σ1 belongs to any value in the range of 85° to 90°.

[0171] In some embodiments of the present application, the straight line P4Q6 where the fourth guiding point P4 and the sixth guiding point Q6 are located is approximately perpendicular to the front door wall 31. The first angle σ1 belongs to any value in the range of 89° to 90°.

[0172] In some embodiments of the present application, the angle between the straight line P4Q6 where the fourth guiding point P4 and the sixth guiding point Q6 are located and the side door wall 32 is denoted as the fourth angle σ4 (not shown in the figure). Among them, the fourth angle σ4 belongs to any value in the range of 0° to 5°.

[0173] In some embodiments of the present application, the straight line P4Q6 where the fourth guiding point P4 and the sixth guiding point Q6 are located is approximately parallel to the side door wall 32, and the fourth angle σ4 belongs to any value in the range of 0° to 1°.

[0174] Similarly, the range of the line-plane angle is 0° to 90°. Relative to the side door wall 32, the straight line P4Q6 can be set to extend from the end close to the front door wall 31 to the side close to the rear door wall 33 and the side door wall 32; the straight line P4Q6 can also be set to extend from the end close to the front door wall 31 to the side close to the rear door wall 33 and away from the side door wall 32. The fourth angle σ4 is the non-obtuse value of the angle formed by the straight line P4Q6 and the side door wall 32.

[0175] In some embodiments of the present application, the angle between the straight line P4Q6 and the front door wall 31 - the first angle σ1 is the line-plane angle, and the angle between the straight line P4Q6 and the side door wall 32 also belongs to the line-plane angle, and the range of the line-plane angle is 0° to 90°.

[0176] As described above, the definitions of the first angle σ1 and the fourth included angle σ4 further define the relative positions of the guiding trajectory line S and the guiding trajectory line K whose distances from the front door wall first increase and then decrease, thereby defining the movement trends of the first axis relative to the guiding portion 50 and the second axis relative to the guiding portion 60 with respect to the first body side wall and the access opening during the door opening process, such that they have a movement trend of approaching the first body side wall and the access opening throughout the process, so that the door body 30 has a movement trend of approaching the second body side wall and moving away from the plane where the access opening is located relative to the box body throughout the process, so as to realize the inward and forward movement of the door body throughout the process.

[0177] In some embodiments of the present application, the starting guiding point Q0 and the eighth guiding point Q8 are respectively the relative two end points of the guiding trajectory line K.

[0178] In some embodiments of the present application, the starting guiding point P0 corresponds to the position of the first central axis P relative to the guiding trajectory line S when the door body 30 is closed; the eighth guiding point P8 corresponds to the position of the first central axis P relative to the guiding trajectory line S when the door body 30 is opened to the eighth angle G8. And the starting guiding point Q0 corresponds to the position of the second central axis Q relative to the guiding trajectory line K when the door body 30 is closed; the eighth guiding point Q8 corresponds to the position of the second central axis Q relative to the guiding trajectory line K when the door body 30 is opened to the eighth angle G8.

[0179] In some embodiments of the present application, when designing the second hinge member, in order to avoid excessive force when closing the door body 30 and guiding the door body 30 to move excessively towards the box body 10, an extension section is provided at one end of the guiding trajectory line S or the guiding trajectory line K close to the front door wall 31 to reserve space for the above situation. Similarly, in order to avoid excessive force when opening the door body 30 to the maximum angle G max and guiding the door body to move excessively (due to factors such as force deformation), an extension section is provided at one end of the guiding trajectory line S far from the front door wall 31 or at one end of the guiding trajectory line K close to the door side wall 32 to reserve space for the above situation. When reserving space at at least one end of the guiding portion 50 or both end portions of the guiding portion 50, the starting guiding point P0, the starting guiding point Q0, the eighth guiding point P8, and the eighth guiding point Q8 are not the end points of their respective trajectory lines; that is, the setting where the starting guiding point P0, the starting guiding point Q0, the eighth guiding point P8, and the eighth guiding point Q8 are the end points of their respective trajectory lines is only an implementable manner, and its essence corresponds to the positions of the two hinge axes when the door body 30 is closed or opened to the maximum angle (eighth angle), and it is not restricted by the end points of their respective trajectory lines.

[0180] In some embodiments of the present application, the starting guiding point P0 is located on the side of the starting guiding point Q0 close to the rear door wall 33 and the door side wall 32, and the eighth guiding point P8 is located on the side of the starting guiding point Q0 close to the front door wall 31 and the door side wall 32.

[0181] In some embodiments of the present application, the eighth guiding point Q8 is located on the side of the eighth guiding point P8 close to the door rear wall 33 and the door side wall 32.

[0182] In some embodiments of the present application, referring to Figure 3 As shown, in the direction of the normal line (X-axis) of the door side wall 32, the distance between the starting guiding point Q0 and the eighth guiding point Q8 is denoted as the first lateral distance E1, and the distance between the eighth guiding point P8 and the eighth guiding point Q8 is denoted as the second lateral distance E2. Among them, the first lateral distance E1 belongs to any value within 25 mm to 30 mm, and the second lateral distance E2 belongs to any value within 2 mm to 4 mm.

[0183] In some embodiments of the present application, in the direction of the normal line (Y-axis) of the door front wall 31, the distance between the eighth guiding point P8 and the eighth guiding point Q8 along the normal line direction of the door front wall 31 is denoted as the first longitudinal distance D1; the distance between the sixth guiding point Q6 and the eighth guiding point Q8 along the normal line direction of the door front wall 31 is denoted as the second longitudinal distance D2; the distance between the starting guiding point Q0 and the eighth guiding point P8 along the normal line direction of the door front wall 31 is denoted as the third longitudinal distance D3.

[0184] Among them, the first longitudinal distance D1 belongs to any value within 10 mm to 14 mm, the second longitudinal distance D2 belongs to any value within 3 mm to 4 mm, and the third longitudinal distance D3 belongs to any value within 0 mm to 1 mm.

[0185] In some embodiments of the present application, the guiding trajectory line S and the guiding trajectory line K are limited within a rectangular frame with a lateral length of 25 mm to 30 mm and a longitudinal length of 13 mm to 18 mm. According to the diameter dimensions of the first shaft 41 and the second shaft 42, the outer contour dimensions of the guiding part 50 (guiding groove) and the guiding part 60 (guiding groove) are set, and the guiding part 50 and the guiding part 60 can be limited within a rectangular frame with a lateral length of 35 mm to 40 mm and a longitudinal length of 23 mm to 28 mm. With the above settings, the arrangement of the guiding part 50 and the guiding part 60 is more compact, and the occupied area is small; it makes full use of the dimension of the door body 30 in the direction perpendicular to the door side wall 32 (X-axis), and reduces the dimension of the door body 30 in the direction perpendicular to the door front wall 31 (Y-axis), reducing the occupation of the thickness dimension of the door body 30 by the guiding part 50 and the guiding part 60, which is also applicable when the door body 30 is thinned.

[0186] In some embodiments of the present application, referring to Figure 6 As shown, when the door body 30 is closed, the distance (gap) between the door side wall 32 and the receiving cabinet 100 is denoted as L1, where L1 is not greater than 3 mm.

[0187] In some embodiments of the present application, the thickness of the door body 30 in the direction perpendicular to its front wall 31 is L2, where the ratio of L1 to L2 is any value within the range of 0.07 - 0.11. The above relationships between the thickness of the door body 30 and the distance between the door side wall 32 and the inner wall of the receiving cabinet 100 are defined such that, with the hinge assembly provided in the present application, when the door body 30 is opened, its first side edge W does not collide with the inner wall of the receiving cabinet 100, preventing the door body 30 from being unable to open.

[0188] In some embodiments of the present application, referring to Figure 6 As shown, the distance α` between the body side wall of the refrigerator installed in the receiving cabinet 100 and the inner wall of the receiving cabinet 100 is greater than the distance between the door side wall 32 of the door body 30 and the inner wall of the receiving cabinet 100 when the door body 30 is closed; that is, α` > L1. When the above door body 30 is closed, the door body 30 can effectively shield the body of the refrigerator, preventing the body side wall of the refrigerator from bulging due to foaming and affecting the appearance.

[0189] In some embodiments of the present application, the second shaft 42 is located on the side of the first shaft 41 away from the second side edge N, and the guiding portion 60 is located on the side of the guiding portion 50 away from the first side edge W; the first shaft 41 first moves away from the front wall 31 and towards the door side wall 32 relative to the guiding portion 50, and then moves towards the front wall 31 and the door side wall 32; the second shaft 42 first moves away from the front wall 31 and towards the door side wall 32 relative to the guiding portion 60, and then moves towards the front wall 31 and the door side wall 32, so that the door body 30 can move a certain distance inward (towards the direction of the second body side wall) while rotating, compensating for the distance by which the first side edge W moves outward due to the pure rotational movement of the door body 30, thereby controlling the distance by which the first side edge W extends beyond the first body side wall and limiting the distance by which the first side edge W extends beyond the first body side wall within the range of the gap between the receiving cabinet 100 and the first body side wall, preventing the first side edge W from colliding with the receiving cabinet and causing the door body 30 to be unable to open. [[ID=⑨]] [[ID=⑩]]

[0190] In some embodiments of the present application, when the door body 30 is in the closed state, the distance between the first central axis P and the front wall 31 is equal to the distance between the first central axis P and the front wall 31 when the door body 30 is opened to 90 degrees.

[0191] In some embodiments of the present application, the distance between the starting guiding point P0 and the front wall 31 on the guiding trajectory line S is equal to the distance between the seventh guiding point P7 and the front wall 31.

[0192] In some embodiments of the present application, the straight line P0P7 where the starting guiding point P0 and the seventh guiding point P7 are located on the guiding trajectory line S is parallel to the front wall 31.

[0193] In some embodiments of the present application, when the door body 30 is in the closed state, the straight line P0P7 where the starting guiding point P0 and the seventh guiding point P7 on the guiding track line S are located is parallel to the plane where the picking and placing opening is located.

[0194] In some embodiments of the present application, when the door body 30 is in the closed state, the straight line P0P7 where the starting guiding point P0 and the seventh guiding point P7 on the guiding track line S are located is perpendicular to the first body side wall.

[0195] Since there is a relative motion relationship between the guiding part 50 and the first shaft 41, and between the guiding part 60 and the second shaft 42, if the door body 30 is in the process of opening, taking the guiding part 50 and the guiding part 60 as static reference objects, it is equivalent to the first shaft 41 moving under the restriction of the guiding part 50, and the second shaft 42 moving under the restriction of the guiding part 60. For the convenience of description in the present application, the guiding part 50 and the guiding part 60 are taken as static reference objects, and the first shaft 41 and the second shaft 42 move relative to the reference object for description.

[0196] In some embodiments of the present application, within the projection of the top wall plane of the box body 10, the line segment PQ is denoted as the axis center line segment PQ; the center of the axis center line segment PQ is denoted as the axis center midpoint I. As Figures 6 - 24 shown, the movement of the first shaft 41 along the guiding part 50 is equivalent to the movement of the first central axis P along the guiding track line S, and the movement of the second shaft 42 along the guiding part 60 is equivalent to the movement of the second central axis Q along the guiding track line K, so that the door body 30 can move a certain distance inward (towards the direction of the second body side wall) while rotating, so as to prevent the door body 30 from interfering with the receiving cabinet 100 and ensure the effective opening of the door body 30.

[0197] The movement of the door body 30 relative to the box body 10 is equivalent to the relative movement between the two within the plane of the top wall of the box body 10 (or within a plane parallel to the top wall of the box body 10); that is, the movement of the door body 30 relative to the box body 10 can be reduced to the relative movement within a two-dimensional plane. Since the first hinge member with the first shaft 41 and the second shaft 42 is fixed on the box body 10, and the second hinge member with the guiding part 60 and the guiding part 50 is located on the door body 30, within the plane of the top wall of the box body 10, the movement of the first hinge member (axis center line segment PQ) relative to the door body 30 (the guiding part 60 and the guiding part 50) is equivalent to the movement of the axis center line segment PQ relative to the door body 30, and is also equivalent to the movement of the box body 10 relative to the door body 30.

[0198] In the following description, for the convenience of elaboration, within the plane of the top wall of the box body 10, the movement of the axis center line segment PQ relative to the second hinge member (the guiding part 60 and the guiding part 50) provided on the door body 30 is selected to represent the movement of the box body 10 relative to the door body 30. That is, the description of the relative movement in the present invention is described in terms of the relative movement within a two-dimensional plane.

[0199] AsFigure 6 As shown, in this embodiment, when the door body 30 is in the closed state, the first central axis P is located at the starting guiding point P0 of the guiding track line S, and the second central axis Q is located at the starting guiding point Q0 of the guiding track line K. That is, when the door body 30 is in the closed state, the first shaft 41 is located at one end of the guiding portion 50 away from the door side wall 32, and the second shaft 42 is located at one end of the guiding portion 60 away from the door side wall 32; the second shaft 42 is located on the side of the first shaft 41 close to the front door wall 31 and away from the door side wall 32.

[0200] In some embodiments of the present application, when the door body 30 is closed, relative to the rear door wall 33, both the first shaft 41 and the second shaft 42 are close to the front door wall 31. That is, when the door body 30 is closed, both the first shaft 41 and the second shaft 42 are located on the side of the middle plane C close to the front door wall 31.

[0201] In this embodiment, as Figures 6 - 24 shown, under the limitation of the above-mentioned guiding portion 50 and the first shaft 41, and the guiding portion 60 and the second shaft 42, taking the eighth opening angle G8 of the refrigerator being greater than 90° (G max = G8) as an example for illustration. During the process of the door body 30 rotating from the closed state to the eighth opening angle G8, when the door body 30 rotates to a specific angle, the relative positions of the first shaft 41 relative to the guiding portion 50 and the second shaft 42 relative to the guiding portion 60 are specifically as follows:

[0202] In the following description, represents the opening angle of the door body 30. When the door body 30 is in the closed state, the opening angle The opening angle when the door body 30 opens relative to the cabinet 10 to expose the access opening is a positive number;

[0203] In some embodiments of the present application, when the door body 30 is in the closed state, the opening angle The rear door wall 33 is parallel to the plane where the access opening is located. When the door body 30 moves further along the closing direction from the closed state to further squeeze the door seal, the opening angle of the door body 30 is a negative number.

[0204] As Figure 6 shown, When, the door body 30 is in the closed state; the first central axis P is located at the starting guiding point P0 of the guiding track line S, the second central axis Q is located at the starting guiding point Q0 of the guiding track line K, and the midpoint I of the axis is located at the starting midpoint I0 relative to the door body 30.

[0205] As Figure 7 shown, When the door body 30 rotates and opens from the closed state to G2; during the above opening process, the first central axis P moves linearly along the guiding track line S in a direction away from the front door wall 31 and closer to the side door wall 32, and the second central axis Q moves curvilinearly along the guiding track line K in a direction away from the front door wall 31 and closer to the side door wall 32.

[0206] Above, the opening angle of the door body 30 When, the movement trends in this opening angle range are consistent; the only difference is that: the opening angles are different, the positions of the first central axis P relative to the guiding track line S are different, and the positions of the second central axis Q relative to the guiding track line K are different. Thus, within the opening angle When, choosing any one of the opening angles can represent the relative positions of the first axis 41 and the guiding part 50, and the second axis 42 and the guiding part 60 when the door body 30 is opened to the corresponding range; specifically, as Figure 7 Shown, taking To represent the position within this opening angle range for comparison with when the door body 30 is opened to other states. Among them, 0° < G1 < G2. Specifically, the positional relationships of the first central axis P relative to the guiding track line S and the second central axis Q relative to the guiding track line K when the door body 30 is opened to G1 are as follows.

[0207] As Figure 7 And Figure 17 Shown, When, the door body 30 rotates and opens to G1. The first central axis P is located at the first guiding point P1 of the guiding track line S, and the first guiding point P1 is located on the side closer to the side door wall 32 and the rear door wall 33 of the starting guiding point P0. The second central axis Q is located at the first guiding point Q1 of the guiding track line K, and the first guiding point Q1 is located on the side closer to the side door wall 32 and the rear door wall 33 of the starting guiding point Q0; relative to the door body 30, the axis midpoint I moves to the first midpoint I1 along the axis line segment PQ, and the first midpoint I1 is located on the side closer to the side door wall 32 and the rear door wall 33 of the starting midpoint I0.

[0208] As Figure 8 And Figure 18 Shown, When the door body 30 rotates and opens to G2. The first central axis P is located at the second guiding point P2 of the guiding track line S. The second guiding point P2 is located on the side of the first guiding point P1 closer to the door side wall 32 and the door rear wall 33, and is located at the end point of the first guiding line of the guiding track line S closer to the door side wall 32. The second central axis Q is located at the second guiding point Q2 of the guiding track line K. The second guiding point Q2 is located on the side of the first guiding point Q1 closer to the door side wall 32 and the door rear wall 33; relative to the door body 30, the midpoint I of the axis moves to the second midpoint I2 along the axis line segment PQ, and the second midpoint I2 is located on the side of the first midpoint I1 closer to the door side wall 32 and the door rear wall 33. Optionally, G2 can be any value in [16°, 25°].

[0209] As Figure 9 shown, when the door body 30 rotates and opens from G2 to G4; during the above opening process, the first central axis P moves along the guiding track line S in a curvilinear motion in a direction away from the front wall 31 of the door and closer to the door side wall 32, and the second central axis Q moves along the guiding track line K in a curvilinear motion in a direction away from the front wall 31 of the door and closer to the door side wall 32.

[0210] Above, the opening angle of the door body 30 when, the motion trend in this opening angle interval remains the same; the only difference is that: the opening angles are different, the positions of the first central axis P relative to the guiding track line S are different, and the positions of the second central axis Q relative to the guiding track line K are different. Thus, when the opening angle is within, choosing any one of the opening angles can represent the relative positions of the first axis 41 and the guiding part 50, and the second axis 42 and the guiding part 60 when the door body 30 opens to the corresponding interval; specifically, as Figure 9 shown, taking to represent the position within this opening angle interval for comparison with when the door body 30 opens to other states. Among them, G2 < G3 < G4. Specifically, when the door body 30 opens to G3, the positional relationship between the first central axis P relative to the guiding track line S and the second central axis Q relative to the guiding track line K is as follows.

[0211] As Figure 9 and Figure 19 shown, when the door body 30 rotates and opens to G3; the first central axis P is located at the third guiding point P3 of the guiding track line S. The third guiding point P3 is located on the side of the second guiding point P2 closer to the door side wall 32 and the door rear wall 33; the second central axis Q is located at the third guiding point Q3 of the guiding track line K. The third guiding point Q3 is located on the side of the second guiding point Q2 closer to the door side wall 32 and the door rear wall 33; relative to the door body 30, the midpoint I of the axis moves to the third midpoint I3 along the axis line segment PQ, and the third midpoint I3 is located on the side of the second midpoint I2 closer to the door side wall 32 and the door rear wall 33.

[0212] As Figure 10 and Figure 20 shown When, the door body 30 rotates and opens to G4. The first central axis P is located at the fourth guiding point P4 of the guiding track line S, and the fourth guiding point P4 is located on the side of the third guiding point Q3 close to the door side wall 32 and the door rear wall 33; at this time, the first central axis P is located at the point where the distance between the guiding track line S and the door front wall 31 is the largest; the second central axis Q is located at the fourth guiding point Q4 of the guiding track line K, and the fourth guiding point Q4 is located on the side of the third guiding point Q3 close to the door side wall 32 and the door rear wall 33; relative to the door body 30, the midpoint I of the axis moves to the fourth midpoint I4 along the axis line segment PQ, and the fourth midpoint I4 is located on the side of the third midpoint I3 close to the door side wall 32 and the door rear wall 33; optionally, G4 ∈ any value in [38°, 47°].

[0213] As Figure 11 shown When, the process of the door body 30 rotating and opening from G4 to G6; during the above opening process, the first central axis P moves along the guiding track line S in a curved motion towards the direction close to the door front wall 31 and the door side wall 32, and the second central axis Q moves along the guiding track line K in a curved motion towards the direction away from the door front wall 31 and close to the door side wall 32.

[0214] Above, the opening angle of the door body 30 When, the motion trend in this opening angle interval remains the same; the only difference is that: the opening angles are different, the positions of the first central axis P relative to the guiding track line S are different, and the positions of the second central axis Q relative to the guiding track line K are different. Thus, within the opening angle , choosing any one of the opening angles can represent the relative positions of the first axis 41 and the guiding part 50, and the second axis 42 and the guiding part 60 when the door body 30 opens to the corresponding interval; specifically, as Figure 11 shown represents the position within this opening angle interval for comparison with the door body 30 in other states. Among them, G4 < G5 < G6. Specifically, the positional relationship between the first central axis P relative to the guiding track line S and the second central axis Q relative to the guiding track line K when the door body 30 opens to G5 is as follows.

[0215] As Figure 11 and Figure 21 shown When the door body 30 rotates and opens to G5, the first central axis P is located at the fifth guiding point P5 of the guiding track line S, and the fifth guiding point P5 is on the side of the fourth guiding point P4 close to the front door wall 31 and the door side wall 32; the second central axis Q is located at the fifth guiding point Q5 of the guiding track line K, and the fifth guiding point Q5 is on the side of the fourth guiding point Q4 far from the front door wall 31 and close to the door side wall 32; relative to the door body 30, the midpoint I of the axis moves to the fifth midpoint I5 along the axis line segment PQ, and the fifth midpoint I5 is on the side of the fourth midpoint I4 close to the door side wall 32 and the rear door wall 33.

[0216] As Figure 12 and Figure 22 shown, When the door body 30 rotates and opens to G6, the first central axis P is located at the sixth guiding point P6 of the guiding track line S, and the sixth guiding point P6 is on the side of the fifth guiding point P5 close to the front door wall 31 and the door side wall 32; the second central axis Q is located at the sixth guiding point Q6 of the guiding track line K, and the sixth guiding point Q6 is on the side of the fifth guiding point Q5 far from the front door wall 31 and close to the door side wall 32; the second central axis Q is located at the position with the maximum distance from the front door wall 31 along the guiding track line K; relative to the door body 30, the midpoint I of the axis moves to the sixth midpoint I6 along the axis line segment PQ, and the sixth midpoint I6 is on the side of the fifth midpoint I5 close to the door side wall 32 and the front door wall 31; optionally, G6 ∈ any value in [86°, 90°].

[0217] As Figure 13 shown, When the door body 30 rotates and opens from G6 to G8; during the above opening process, the first central axis P moves along the guiding track line S in a curved motion towards the direction close to the front door wall 31 and the door side wall 32, and the second central axis Q moves along the guiding track line K in a curved motion towards the direction close to the front door wall 31 and the door side wall 32.

[0218] Above, when the opening angle of the door body 30 is within a certain range, the motion trend during this opening angle range remains consistent; the only difference is that: the opening angle is different, the position of the first central axis P relative to the guiding track line S is different, and the position of the second central axis Q relative to the guiding track line K is different. Thus, when the opening angle is within a certain range, choosing any one of the opening angles can represent the relative positions of the first axis 41 and the guiding part 50, and the second axis 42 and the guiding part 60 when the door body 30 is opened to the corresponding range; specifically, as Figure 13 shown, taking to represent the position within this opening angle range for comparison with when the door body 30 is opened to other states. Among them, G6 < G7 < G8. Specifically, the positional relationship between the first central axis P relative to the guiding track line S and the second central axis Q relative to the guiding track line K when the door body 30 is opened to G5 is as follows.

[0219] As Figure 13 and Figure 23 shown, when, the door body 30 rotates and opens to G7. The first central axis P is located at the seventh guiding point P7 of the guiding track line S, and the seventh guiding point P7 is located on the side of the sixth guiding point P6 close to the front door wall 31 and the door side wall 32; the second central axis Q is located at the seventh guiding point Q7 of the guiding track line K, and the seventh guiding point Q7 is located on the side of the sixth guiding point Q6 (the point with the maximum distance between the guiding track line K and the front door wall 31) close to the front door wall 31 and the door side wall 32; relative to the door body 30, the midpoint I of the axis moves to the seventh midpoint I7 along the axis line segment PQ, and the seventh midpoint I7 is located on the side of the sixth midpoint I6 close to the door side wall 32 and the front door wall 31.

[0220] In some embodiments of the present application,

[0221] In some embodiments of the present application, when, the seventh guiding point Q7 is located on the side of the seventh guiding point P7 away from the front door wall 31 and the door side wall 32, and the seventh guiding point Q7 is located on the side of the sixth guiding point Q6 close to the front door wall 31 and the door side wall 32.

[0222] In some embodiments of the present application, when, the first central axis P is located at the sixth guiding point P6, and the second central axis Q is located at the sixth guiding point Q6.

[0223] In some embodiments of the present application, when the door body 30 is opened to 90°, the front door wall 31 of the door body 30 is located inside the first body side wall of the box body 10.

[0224] In some embodiments of the present application, when the door body 30 is opened to 90°, the front door wall 31 of the door body 30 is located inside the first body side wall of the box body 10, and the distance between the front door wall 31 and the first body side wall is L3, and L3 is any value between 4 mm and 6 mm. The above settings make the door body 30 located inside the first body side wall when opened to 90°, increasing the distance between the front door wall 31 and the inner wall of the storage cabinet 100 to reduce the limitation of the storage cabinet 100 on the maximum opening angle of the door body 30. In addition, the above settings can minimize the occlusion of the access opening by the door body 30 when opened to 90° while ensuring that the maximum opening angle of the door body 30 of the refrigerator placed in the storage cabinet 100 is large enough.

[0225] As Figure 14 and Figure 24 shown, When the door body 30 rotates and opens to G8, the first central axis P is located at the eighth guiding point P8 of the guiding track line S, and the eighth guiding point P8 is located on the side of the seventh guiding point P7 close to the front door wall 31 and the door side wall 32; the second central axis Q is located at the eighth guiding point Q8 of the guiding track line K, and the eighth guiding point Q8 is located on the side of the seventh guiding point Q7 close to the front door wall 31 and the door side wall 32; relative to the door body 30, the midpoint I of the axis moves to the eighth midpoint I8 along the axis line segment PQ, and the eighth midpoint I8 is located on the side of the seventh midpoint I7 close to the door side wall 32 and the front door wall 31. Optionally, G max is not less than 115°. Optionally, G max ∈ any value in [115°, 125°].

[0226] In some embodiments of the present application, when the door body 30 is opened to the maximum angle G max , the first shaft 41 is located at the end of the guiding portion 50 close to the door side wall 32; the first shaft 41 cooperates with the end of the guiding portion 50 close to the door side wall 32 to prevent the door body 30 from opening further.

[0227] In some embodiments of the present application, when the door body 30 is opened to the maximum angle G max , the second shaft 42 is located on the side of the first shaft 41 close to the door side wall 32 and the rear door wall 31, and is located at the end of the guiding portion 60 close to the door side wall 32. The second shaft 42 cooperates with the end of the guiding portion 60 close to the door side wall 32 to prevent the door body 30 from opening further.

[0228] In this embodiment, 0° < G1 < G2 < G3 < G4 < G5 < G6 < G7 = 90° < G max = G8; the above G1, G2, G3, G4, G5, G6, G7, G8, G max are successively recorded as the first angle, the second angle, the third angle, the fourth angle, the fifth angle, the sixth angle, the seventh angle, the eighth angle, and the maximum angle. In addition, it should be noted that the above limitations on the ranges of each angle are only used as an implementable setting method and do not limit each angle finitely.

[0229] Here, it should be noted that the maximum angle G that the door body mentioned in the present invention can open max is the maximum angle that the refrigerator can open when placed in the receiving cabinet. After the refrigerator is removed from the receiving cabinet, the maximum angle that it can open is recorded as the free opening angle G maxk , and the free opening angle G maxk is not less than the maximum angle G max . When the refrigerator is removed from the receiving cabinet and the free opening angle G maxk it opens is greater than the maximum angle G max , its hinge assembly at least includes the track features in the present invention, and the door body 30 is opened from the maximum angle Gmax Continue to open to the free opening angle G that the door body 30 opens after being moved out of the accommodation cabinet maxk The trajectory characteristics during the process are not limited to the setting method in the present invention.

[0230] Combined with the above situation where the door body 30 is opened to a specific angle, in some embodiments of the present application, when the door body 30 is opened to the maximum angle G max During the process, the first shaft 41 always moves relative to the guiding portion 50 and moves unidirectionally towards the direction close to the door rear wall 33; the second shaft 42 always moves relative to the guiding portion 60 and moves unidirectionally towards the direction close to the door side wall 32; that is, during the entire opening process of the door body 30, both the first shaft 41 and the second shaft 42 maintain unidirectional movement and do not reverse, so that the force application directions of the first shaft 41 and the second shaft 42 during the opening process of the door body 30 always remain the same, the feel of opening and closing the door is good, and the user experience is improved. In addition, the service lives of the guiding portion 50 and the guiding portion 60 are good. Moreover, during the entire opening process of the door body 30, the first shaft 41 and the second shaft 42 maintain unidirectional movement throughout the process, so that during the entire opening process of the door body 30, there is no acceleration of stopping and then moving again, and the movement smoothness of the door body 30 is better.

[0231] The hinge assembly with the trajectory characteristics of the present application enables the door body to be opened to an obtuse angle within the accommodation cabinet 100, and during the opening process, the first shaft 41 moves relative to the guiding portion 50 throughout the process, and the second shaft 42 moves relative to the guiding portion 60 throughout the process.

[0232] Combined with the positions of the two limiting shafts (the first shaft 41 and the second shaft 42) relative to the limiting portions (the guiding portion 50 and the guiding portion 60) when the door body 30 is opened to a specific angle, the following situations exist for the matching relationship between the first shaft 41 and the guiding portion 50:

[0233] During the process of the door body 30 being opened from the closed state to G4, the first shaft 41 moves along the guiding portion 50 towards the directions close to the door rear wall 33 and the door side wall 32 throughout the process, and the second shaft 42 moves along the guiding portion 60 towards the directions close to the door side wall 32 and the door rear wall 33.

[0234] During the process of the door body 30 being opened from G4 to G6, the first shaft 41 moves along the guiding portion 50 towards the directions close to the door front wall 31 and the door side wall 32 throughout the process, and the second shaft 42 moves along the guiding portion 60 towards the directions close to the door side wall 32 and the door rear wall 33.

[0235] During the process of the door body 30 being opened from G6 to G max During the process, the first shaft 41 moves along the guiding portion 50 towards the directions close to the door front wall 31 and the door side wall 32 throughout the process, and the second shaft 42 moves along the guiding portion 60 towards the directions close to the door front wall 31 and the door side wall 32.

[0236] In some embodiments of the present application, G4:G8 belongs to any value within the range of 0.35 to 0.65.

[0237] As a configurable manner, G4:G8 belongs to any value within the range of 0.45 to 0.55.

[0238] In some embodiments of the present application, G4 belongs to any value within the range of 35° to 45°, and G8 belongs to any value within the range of 70° to 90°.

[0239] As a configurable manner, G4 belongs to any value within the range of 38° to 42°, and G8 belongs to any value within the range of 75° to 80°.

[0240] Combined with Figures 6 - 14 and referring to Figure 16 below, from the perspective of the mating relationship between the first axis 41 and the guiding portion 50, and the second axis 42 and the guiding portion 60, the relative movement conditions of these two stages will be described:

[0241] (1) The first stage, combined with Figures 6 - 10 and Figures 16 - 20 as shown, the process in which the door body 30 rotates from the closed state to G4.

[0242] In this first stage, the door body 30 opens from 0° through G1, G2, G3 to G4. During this process, the first central axis P moves from the starting guiding point P0 along the guiding track line S in the direction close to the door rear wall 33 and the door side wall 32; the second central axis Q moves from the starting guiding point Q0 along the guiding track line K in the direction close to the door rear wall 33 and the door side wall 32.

[0243] Specifically, the first central axis P moves from the starting guiding point P0 along the guiding track line S through the first guiding point P1, the second guiding point P2, the third guiding point P3 in sequence and moves to the fourth guiding point P4; the second central axis Q moves from the starting guiding point Q0 along the guiding track line K through the first guiding point Q1, the second guiding point Q2, the third guiding point Q3 in sequence and moves to the fourth guiding point Q4.

[0244] In the opening process of the above first stage, the second hinge member (guiding portion 50 / guiding portion 60 / door body 30) is used as a reference.

[0245] As the door 30 opens from 0° to G4, the axis line segment PQ rotates clockwise from P0Q0 and moves toward the door sidewalls 32 and rear wall 33, successively to P1Q1, P2Q2, P3Q3, and P4Q4. Specifically, the axis line segment PQ moves in the following order: P0Q0 → P1Q1 → P2Q2 → P3Q3 → P4Q4. Simultaneously, the axis center point I moves in the following order: I0 → I1 → I2 → I3 → I4. Specifically, as the door 30 opens, the axis center point I moves toward the door sidewalls 32 and rear wall 33 relative to the door body 30.

[0246] Since the guiding portion 50 and the guiding portion 60 are arranged on the door body 30, the axial line segment PQ represents the movement of the hinge plate 40 arranged on the box body 10; it can be concluded that: taking the door body 30 as a reference, during the entire process of the door body 30 opening from the closed state to the fourth angle G4, the box body 10 (i.e., the hinge plate 40) keeps rotating clockwise relative to the door body 30 to open, and moves a certain distance toward the direction close to the door side wall 32 and the door rear wall 33.

[0247] In summary, in the process of the door body 30 opening from the closed state to the fourth angle G4, with the door body 30 (guide groove / guide groove) as a reference, the box body 10 has a translational motion relative to the door body 30 while performing a rotational motion; the translational motion is specifically: the box body 10 has a displacement relative to the door body 30 that is parallel to the door rear wall 33 and points to the side of the door side wall 32, and a displacement that is parallel to the door side wall 32 and points away from the door front wall 31.

[0248] According to the relativity of movement, with the box body 10 as a reference, in the process of the door body 30 opening from the closed state to the fourth angle G4, the door body 30 has a translational movement while performing a rotational movement; the translational movement is specifically: the door body 30 has a displacement relative to the box body 10 that is parallel to the door rear wall 33 and points to the side away from the door side wall 32, and a displacement that is parallel to the door side wall 32 and points to the door front wall 31.

[0249] In some embodiments of the present application, a straight first guide line and a curved second guide line are set in combination with the guide trajectory line S; the above first stage is divided into a first segment and a second segment.

[0250] Specifically, in the first section, the door body 30 opens from a closed state to a second angle G2, and the first center axis P moves in a straight line from the starting guide point P0 along the guide trajectory line S toward the direction close to the door rear wall 33 and the door side wall 32; the second center axis Q moves in a curved line from the starting guide point Q0 along the guide trajectory line K toward the direction close to the door rear wall 33 and the door side wall 32.

[0251] In the second sub - stage, the door body 30 is opened from the second angle G2 to the fourth angle G4. The first central axis P makes a curvilinear motion from the starting guiding point P0 along the guiding track line S in the direction close to the door rear wall 33 and the door side wall 32; the second central axis Q makes a curvilinear motion from the starting guiding point Q0 along the guiding track line K in the direction close to the door rear wall 33 and the door side wall 32.

[0252] The relative motion conditions of the above - mentioned first sub - stage and second sub - stage are the same as those in the process of the upper door body 30 being opened from the closed state to the fourth angle G4, which will not be elaborated here.

[0253] (2) The second stage, combined with Figures 10 - 12 , as Figures 20 - 22 shown, is the process of the door body 30 being rotated and opened from G4 to G6.

[0254] In this second stage, the door body 30 is opened from G4 through G5 to G6. During this process, the first central axis P moves from the fourth guiding point P4 along the guiding track line S in the direction close to the door front wall 31 and the door side wall 32; the second central axis Q moves from the fourth guiding point Q4 along the guiding track line K in the direction close to the door rear wall 33 and the door side wall 32.

[0255] Specifically, the first central axis P moves from the fourth guiding point P4 along the guiding track line S through the fifth guiding point P5 to the sixth guiding point P6; the second central axis Q moves from the fourth guiding point Q4 along the guiding track line K through the fifth guiding point Q5 to the sixth guiding point Q6.

[0256] In the above - mentioned opening process of the second stage, the second hinge member (guiding part 50 / guiding part 60 / door body 30) is used as a reference object for description.

[0257] During the process of the door body 30 being opened from G4 to G6, the axis line segment PQ rotates clockwise from P4Q4 and moves successively to P5Q5 and P6Q6 in the direction close to the door side wall 32; that is, the movement trend of the axis line segment PQ is P4Q4→P5Q5→P6Q6. At the same time, the movement trend of the mid - point I of the axis is I4→I5→I6 as it moves along with the axis line segment PQ.

[0258] In some embodiments of the present application, when the door body 30 is opened to the commutation angle G`, the mid - point I of the axis moves to the commutation mid - point I`; at this time, the distance between the mid - point I of the axis and the door front wall 31 is the largest.

[0259] In some embodiments of the present application, G4<G5<G`<G6. That is, before the second central axis Q moves to the sixth guiding point Q6, which is the point on the guiding track line K with the largest distance from the door front wall 31, the guiding center I has moved to the position with the largest distance from the door front wall 31.

[0260] That is, during the process of the door body 30 rotating from the fourth angle G4 to the sixth angle G6, the midpoint I of the axis first moves towards the door side wall 32 and the door rear wall 33, and then moves towards the door side wall 32 and the door front wall 31. During the opening process of the door body 30, the movement trend of the midpoint I of the axis moving along the axis line segment PQ is I4→I5→I`→I6.

[0261] Since the guiding part 50 and the guiding portion 60 are provided on the door body 30, and the axis line segment PQ represents the movement of the hinge plate 40 provided on the box body 10; it can be obtained that: taking the door body 30 as a reference, during the process of the door body 30 opening from the fourth angle G4 to the commutation angle G`, the box body 10 (i.e., the hinge plate 40) rotates clockwise and opens relative to the door body 30, and moves a certain distance towards the door side wall 32 and the door rear wall 33. And during the process of the door body 30 opening from the commutation angle G` to the sixth angle G6, the box body 10 (i.e., the hinge plate 40) rotates clockwise and opens relative to the door body 30, and moves a certain distance towards the door side wall 32 and away from the door rear wall 33.

[0262] In summary, during the process of the door body 30 opening from the fourth angle G4 to the commutation angle G`, taking the door body 30 (the guiding groove / guiding portion) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30; specifically, the translational motion is that the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 and a displacement parallel to the door side wall 32 and pointing to the side away from the door front wall 31 relative to the door body 30.

[0263] During the process of the door body 30 opening from the commutation angle G` to the sixth angle G6, taking the door body 30 (the guiding groove / guiding portion) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30; specifically, the translational motion is that the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 and a displacement parallel to the door side wall 32 and pointing to the door front wall 31 relative to the door body 30.

[0264] According to the relativity of motion, taking the box body 10 as a reference, during the process of the door body 30 opening from the fourth angle G4 to the commutation angle G`, the door body 30 has a translational motion while rotating; specifically, the translational motion is that the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 and a displacement parallel to the door side wall 32 and pointing to the door front wall 31 relative to the box body 10.

[0265] During the process of the door body 30 opening from the commutation angle G` to the sixth angle G6, the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 and a displacement parallel to the door side wall 32 and pointing to the side away from the door front wall 31 relative to the box body 10.

[0266] In some embodiments of the present application, G` = G6. That is, when the door body 30 is opened to the commutation angle G`, the second central axis Q moves to the sixth guiding point Q6 where the distance between the guiding track line K and the front wall 31 of the door is the largest. When the door body 30 is opened from G4 to G6, the midpoint I of the axis moves towards the door side wall 32 and the rear wall 33 of the door relative to the door body 30. In its specific movement process, refer to the movement of the midpoint I of the axis towards the door side wall 32 and the rear wall 33 of the door relative to the door body 30 in the above description, which will not be elaborated here.

[0267] (3) The third stage, combined with Figures 12 - 14 , such as Figures 22 - 24 shown, the process of the door body 30 being rotated and opened from G6 to G max .

[0268] When the door body 30 is opened from G6 to G max , during this opening process, the first central axis P moves from the sixth guiding point P6 along the guiding track line S towards the front wall 31 and the door side wall 32 of the door; the second central axis Q moves from the sixth guiding point Q6 along the guiding track line K towards the front wall 31 and the door side wall 32 of the door.

[0269] Specifically, the first central axis P moves from the sixth guiding point P6 along the guiding track line S through the seventh guiding point P7 to the eighth guiding point P8; the second central axis Q moves from the sixth guiding point Q6 along the guiding track line K through the seventh guiding point Q7 to the eighth guiding point Q8.

[0270] In the above opening process of the third stage, the second hinge member (guiding part 50 / guiding part 60 / door body 30) is used as a reference object for description.

[0271] When the door body 30 is opened from G6 to G max , during this process, the axis line segment PQ rotates clockwise from P6Q6 and moves towards the door side wall 32 and the front wall 31 of the door in sequence to P7Q7 and P8Q8; that is, the movement trend of the axis line segment PQ is P6Q6 → P7Q7 → P8Q8. At the same time, the movement trend of the midpoint I of the axis following the axis line segment PQ is I6 → I7 → I8. Among them, when the door body 30 is opened from G6 to G max , relative to the door body 30, the midpoint I of the axis moves towards the door side wall 32 and the front wall 31 of the door.

[0272] In some embodiments of the present application, since the guiding part 50 and the guiding part 60 are arranged on the door body 30, the axis line segment PQ represents the movement of the hinge plate 40 arranged on the box body 10; then it is concluded that taking the door body 30 as a reference object, the door body 30 is opened from the sixth angle G6 to the maximum angle G maxDuring the process of the eighth angle G8, the box body 10 (i.e., the hinge plate 40) remains rotating clockwise to open relative to the door body 30 and moves a certain distance in the direction close to the door side wall 32 and the front door wall 31.

[0273] In summary, the door body 30 is opened from the sixth angle G6 to the maximum angle G max During the process of the eighth angle G8, taking the door body 30 (guide groove) as a reference object, the box body 10 has a translational motion while rotating relative to the door body 30; specifically, the translational motion is that the box body 10 has a displacement parallel to the rear door wall 33 and pointing to the side of the door side wall 32 and a displacement parallel to the door side wall 32 and pointing to the side of the front door wall 31 relative to the door body 30.

[0274] According to the relativity of motion, taking the box body 10 as a reference object, the door body 30 is opened from the sixth angle G6 to the maximum angle G max During the process of the eighth angle G8, the door body 30 has a translational motion while rotating; specifically, the translational motion is that the door body 30 has a displacement parallel to the rear door wall 33 and pointing to the side away from the door side wall 32 and a displacement parallel to the door side wall 32 and pointing to the side away from the front door wall 31 relative to the box body 10.

[0275] Combining the situations of the first stage, the second stage and the third stage, it can be seen that according to the relativity of motion, taking the box body 10 as a reference object, the door body 30 has a translational motion while rotating; the translational displacement components of the translational motion include the displacement component parallel to the rear door wall 33 and the displacement component parallel to the door side wall 32. Among them, the displacement component parallel to the rear door wall 33 is denoted as the first-direction displacement The displacement component parallel to the door side wall 32 is the second-direction displacement In different opening stages of the door body 30, the first-direction displacement and the second-direction displacement will have different directions.

[0276] In the above first stage (during the process of opening from the closed state to G4) and the second stage when the door body 30 is opened from G4 to G`, the first-direction displacement points to the side away from the door side wall 32, and the second-direction displacement points to the side of the front door wall 31.

[0277] In the second stage when the door body 30 is opened from G` to G6 and the third stage (during the process of the door body 30 being opened from the sixth angle G6 to the maximum angle G max (eighth angle G8)), the first-direction displacement points to the side away from the door side wall 32, and the second-direction displacement points to the side away from the front door wall 31.

[0278] That is, during the process of the door body 30 being opened from the closed state to the commutation angle G`, the first-direction displacement points to the side away from the door sidewall 32, and the second-direction displacement points to the side of the front door wall 31.

[0279] When the door body 30 is opened from the commutation angle G` to the maximum angle G max (the eighth angle G8), the first-direction displacement points to the side away from the door sidewall 32, and the second-direction displacement points to the side away from the front door wall 31. Among them, the commutation angle G` < 90°.

[0280] Here, it needs to be supplemented and explained that "pointing to the door sidewall 32" refers to the direction from the opposite end of the door body 30 to the door sidewall 32;

[0281] "Pointing to the side away from the door sidewall 32" refers to the direction from the door sidewall 32 to the opposite end of the door body 30;

[0282] "Pointing to the side of the front door wall 31" refers to the direction from the rear door wall 33 to the front door wall 31;

[0283] "Pointing to the side away from the front door wall 31" refers to the direction from the front door wall 31 to the rear door wall 33.

[0284] In addition, it should be noted that the above first-direction displacement second-direction displacement are all instantaneous relative translational displacements to illustrate the instantaneous translational motion trend of the relative cabinet 10 and the door body 30.

[0285] See Figures 28 - 32 as shown; in the plane of the top wall of the cabinet 10, on the side of the cabinet 10 close to the door body 30, a displacement coordinate system AOB is established. Specifically, in the displacement coordinate system AOB, OB is perpendicular to the plane where the access opening is located, and OA is parallel to the plane where the access opening is located. In the displacement coordinate system AOB, the direction from the second body sidewall to the first body sidewall is defined as positive, and the direction from the access opening to the front door wall 31 when the door body 30 is closed (from the rear to the front) is defined as positive. It should be noted that during the opening process of the door body 30, the displacement coordinate system AOB remains stationary relative to the cabinet 10 and does not move with the opening of the door body 30. During the opening process of the door body 30, as the opening angle of the door body 30 changes, the relative position of the door body coordinate system X1O1Y1 relative to the displacement coordinate system AOB changes continuously; and when the opening angle of the door body 30 is determined, the relative position of the instantaneous door body coordinate system X1O1Y1 relative to the displacement coordinate system AOB remains relatively stationary.

[0286] In some embodiments of the present application, in the displacement coordinate system AOB, the door body 30 has a first-direction displacement parallel to the door rear wall 33 a second-direction displacement parallel to the door side wall 32 The first-direction displacement The component displacement on the A axis is The component displacement on the B axis is The second-direction displacement The component displacement on the A axis is The component displacement on the B axis is During the whole process of the door body 30 opening, there are

[0287] The door body 30 is opened from the closed state to the maximum angle G max (the eighth angle G8) during the whole process, in the displacement coordinate system AOB, the door body 30 has a first translational displacement and a second translational displacement Relative to the box body 10, the door body 30 has a translational motion trend of moving along the negative direction of the A axis and moving towards the positive direction of the B axis while rotating; that is, the door body 30 is opened from the closed state to the maximum angle G max (the eighth angle G8) during the whole process, the door body 30 has a motion trend of translating inwards and forwards while rotating open relative to the box body 10

[0288] (1) As Figures 28 - 31 shown, during the process of the door body 30 being opened from the closed state to 90°, during the process of the door body 30 rotating counterclockwise and opening relative to the box body 10, the door side wall 32, the door rear wall 33 and the door front wall 31 also rotate counterclockwise during the opening process of this stage. In the plane of the top wall of the box body 10, along the direction from the second side edge N to the first side edge W (from the door rear wall 33 to the door front wall 31), the door side wall 32 extends outwards and forwards; along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the door rear wall 33 extends inwards and forwards

[0289] During the above opening process (from the closed state to 90°), the door side wall 32 starts to rotate counterclockwise from a state parallel to the reference plane M0. The angle between the door side wall 32 and the plane where the pick-and-place opening is located gradually decreases, and the angle between it and the reference plane M0 gradually increases. That is, during the process of the door body 30 opening from the closed state to 90°, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends towards the side away from the second body side wall and the pick-and-place opening. At the same time, as the opening angle of the door body 30 increases, the angle between the door rear wall 33 and the plane where the pick-and-place opening is located gradually increases, and the angle between the door rear wall 33 and the reference plane M0 gradually decreases. That is, during the process of the door body 30 opening from the closed state to 90°, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 with respect to the door side wall 32, the door rear wall 33 extends towards the side away from the first body side wall and the pick-and-place opening (towards the second body side wall and away from the pick-and-place opening).

[0290] (1.1) Combining the description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 opening from the closed state to the commutation angle G` (G` < 90°), it can be known that during the process of the door body 30 opening from the closed state to the commutation angle G`, taking the box body 10 as a reference, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing towards the side away from the door side wall 32 A second-direction displacement parallel to the door side wall 32 and pointing towards the door front wall 31 That is, the first-direction displacement Points towards the inner front side (inward and forward side) of the box body 10, and the second-direction displacement Points towards the outer front side (outward and forward side) of the box body 10.

[0291] As Figures 28 - 29 Shown in the figure, in the displacement coordinate system AOB, during the process of the door body 30 opening from the closed state to the commutation angle G` (G` < 90°), the first-direction displacement of the door body 30 Is located in the second quadrant (A < 0, B > 0), and the second-direction displacement Is located in the first quadrant (A > 0, B > 0). Decompose the first-direction displacement And the second-direction displacement Respectively on the A-axis and the B-axis; the first-direction displacement The component displacement on the A-axis is The component displacement on the B-axis is The second-direction displacement The component displacement on the A-axis is The component displacement on the B-axis is Among them, under the trajectory feature setting of the present invention, there is Then there is That is, when the door body 30 is opened from the closed state to the reversing angle G', in the displacement coordinate system AOB, the door body 30 has a first translation displacement and the second translation displacement It can be concluded from this that: relative to the box body 10, the door body 30 has a translational movement tendency of moving in the negative direction along the A axis and moving in the positive direction toward the B axis while rotating; that is, in the process of the door body 30 opening from the closed state to G` (G`<90°), the door body 30 has a translational movement tendency inward and forward while rotating and opening relative to the box body 10.

[0292] As described above, during the process of the door body 30 opening from the closed state to G' (G'<90°), the door body 30 keeps moving inward to compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, thereby limiting the distance that the first side edge W exceeds the reference plane M0, effectively preventing the door body 30 from being unable to continue opening due to interference between the first side edge W and the storage cabinet 100 when the door body 30 is opened. At the same time, the door body 30 keeps moving forward to compensate for the backward displacement of the second side edge N caused by the simple rotation of the door body 30, thereby limiting the distance that the second side edge N approaches the plane where the access port is located, thereby reducing the amount of compression on the door seal 5 when the door body 30 is opened.

[0293] (1.2) In combination with the above description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 opening from the reversing angle G' to G7 = 90° (G' < G7 = 90°), it can be seen that: during the process of the door body 30 opening from the reversing angle G' to G7 = 90°, with the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32. A second direction parallel to the door side wall 32 and pointing away from the door front wall 31 The first direction displacement Pointing to the inner front side of the box 10 (inward and forward side), the second direction displacement It points to the inner rear side of the box body 10 (inward and rearward side).

[0294] like Figure 28 and Figure 30 As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the reversing angle G' to G7 = 90°, the first direction displacement of the door body 30 is Located in the second quadrant (A<0, B>0), displacement in the second direction Located in the third quadrant (A<0, B<0). Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis and the B axis respectively; displacement in the first direction The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is Among them, the trajectory feature setting of the present invention has Then there is, That is, when the door body 30 is opened from the reversing angle G' to G7 = 90°, in the displacement coordinate system AOB, the door body 30 has a first translation displacement and the second translation displacement It can be concluded from this that: relative to the box body 10, the door body 30 has a translational movement tendency of moving in the negative direction along the A axis and moving in the positive direction toward the B axis while rotating; that is, in the process of the door body 30 opening from the reversing angle G` to G7=90°, the door body 30 has a translational movement tendency inward and forward while rotating and opening relative to the box body 10.

[0295] (2) Figure 9 As shown, when the door 30 is opened to 90°, the door sidewalls 32 are parallel to the plane of the access opening and perpendicular to the reference plane M0. At this point, the door rear wall 33 is parallel to the reference plane M0 and perpendicular to the plane of the access opening. That is, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door sidewalls 32 extend from inside to outside, and the door rear wall 33 extends from back to front.

[0296] Combined with the description of the displacement direction of the door body 30 relative to the box body 10 during the opening process of the door body 30, it can be concluded that when the door body 30 is opened to 90 degrees, with the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 A second direction parallel to the door side wall 32 and pointing away from the door front wall 31 The first direction displacement Pointing to the front side of the box 10, the second direction displacement Pointing to the inside of the box 10.

[0297] like Figure 31 As shown, when the door body 30 is opened to 90 degrees, in the displacement coordinate system AOB, the first direction displacement of the door body 30 is Along the B axis and pointing to the positive direction of the B axis, the second direction displacement Along the A axis and pointing to the negative direction of the A axis. Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis and the B axis respectively; displacement in the first direction The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The component displacement on the B axis is Among them, That is, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the door body 30 has a first translational displacement and a second translational displacement From this, it can be obtained that: relative to the box body 10, the door body 30 has a translational movement trend of moving along the negative direction of the A axis and moving towards the positive direction of the B axis while rotating; that is, when the door body 30 is opened at 90°, the door body 30 has a movement trend of translating inwards and forwards while rotating open relative to the box body 10.

[0298] In summary, during the process of the door body 30 being opened from the closed state to 90°, the door body 30 has a movement trend of translating inwards and forwards throughout the whole process while rotating open.

[0299] In some embodiments of the present application, during the process of the door body 30 being opened from the closed state to 90°, the door body 30 maintains a movement trend of translating inwards, so that when the door body 30 is opened to 90°, the front wall 31 of the door is parallel to the first side wall of the body, or the front wall 31 of the door is located on the side of the first side wall of the body close to the second side wall of the body. To increase the distance between the door body 30 (front wall 31) and the storage cabinet 100 (reference plane M0) when the door body 30 is opened to 90°, increase the space that allows the door body 30 to continue to open, thereby increasing the maximum angle G max (the eighth angle G8) opened by the door body 30 placed in the storage cabinet 100, and reduce the limitation of the opening angle of the door body 30 placed in the storage cabinet 100.

[0300] (3) As Figures 9 - 12 shown, when the door body 30 is rotated and opened from 90° to G8 (G8 > 90°), during the process of the door body 30 rotating counterclockwise relative to the box body 10, the door side wall 32 also rotates counterclockwise during the opening process at this stage. In the plane of the top wall of the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends outwards and backwards; along the direction from the door side wall 32 to the opposite end of the door body 30 to the door side wall 32, the door rear wall 33 extends outwards and forwards.

[0301] During the above opening process, the door side wall 32 starts to rotate counterclockwise from a state perpendicular to the reference plane M0 (when the door body 30 is opened 90°), and the angle between the door side wall 32 and the plane where the access port is located gradually increases, and the angle between the door side wall 32 and the reference plane M0 gradually decreases; that is, in the process of the door body 30 rotating and opening from 90° to G8, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends away from the second body side wall and close to the access port. At the same time, the angle between the door rear wall 33 and the plane where the access port is located gradually decreases, and the angle between the door rear wall 33 and the reference plane M0 gradually increases; that is, in the process of the door body 30 rotating and opening from 90° to G8, relative to the box body 10, along the direction from the door side wall 32 to the end of the door body 30 opposite to the door side wall 32, the door rear wall 33 extends away from the second body side wall and the access port.

[0302] When the door body 30 is rotated from 90° to G8 (G8>90°), with the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing away from the door side wall 32. A second direction parallel to the door side wall 32 and pointing away from the door front wall 31 The first direction displacement Pointing to the outer front side of the box 10 (outward and forward side), the second direction displacement It points to the inner front side of the box body 10 (the side facing inward and forward).

[0303] like Figure 37 and Figure 42 As shown, in the displacement coordinate system AOB, when the door body 30 opens from 90° to G8 (G8>90°), the first direction displacement of the door body 30 is Located in the first quadrant (A>0, B>0), displacement in the second direction Located in the second quadrant (A<0,B>0). Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis and the B axis respectively; displacement in the first direction The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is Among them, the trajectory feature setting of the present invention has Then there is, That is, when the door body 30 moves from 90° to G8, in the displacement coordinate system AOB, the door body 30 has a first translation displacement and the second translation displacement It can be concluded from this that relative to the box body 10, the door body 30 has a translational movement tendency of moving along the negative direction of the A axis and moving towards the positive direction of the B axis while rotating; that is, during the process of the door body 30 opening from 90° to G8, the door body 30 has a movement tendency of translating inwards and forwards while rotating and opening relative to the box body 10.

[0304] In summary, during the entire process of the door body 30 opening from the closed state to G8 (G8 > 90°), relative to the box body 10, the door body 30 has a movement tendency of translating inwards and forwards while rotating throughout the process.

[0305] Although the current double-axis and double-groove matching structure can prevent the door body 30 from colliding with the receiving cabinet 100 when opening, the door body 30 cannot be fully opened in the setting scenario where the gap between the refrigerator (door body 30) and the receiving cabinet is no more than 3 mm, resulting in inconvenience for users to take and place items.

[0306] See the appendix Figures 33 - 34 In the series of applications represented by CN115682517A applied by the applicant on December 23, 2021, the guiding trajectory line of the guiding part of the hinge assembly extends from the end far away from the door side wall to the direction of moving away from the front wall of the door and approaching the door side wall first, and then extends to the direction of approaching the front wall and the door side wall of the door; the guiding trajectory line of the guiding part extends from the end far away from the door side wall to the direction of moving away from the front wall of the door and approaching the door side wall first, and then extends to the direction of approaching the front wall and the door side wall of the door. In the projection on the plane where the top wall of the box body is located, the midpoint of the line segment where the central axes of the first axis and the second axis are located is denoted as the axis midpoint T; during the opening process of the door body, the axis midpoint T moves relative to the door body, and the axis midpoint trajectory line formed by the relative movement of the axis midpoint T relative to the door body first increases and then decreases with the increase of the opening angle of the door body. Among them, the point with the largest distance between the axis midpoint T and the front wall of the door is T`, and the opening angle of the door body relative to the box body at this time is denoted as G`. Limited by the structure in CN115682517A where the guiding trajectory line is a standard arc and the guiding trajectory line is formed by connecting two standard arcs, when the axis midpoint T moves relative to the door body to the point T` where the distance between it and the front wall of the door is the largest, the opening angle of the door body relative to the box body is an obtuse angle; that is, G` > 90°.

[0307] In the solution defined by CN115682517A, in the displacement coordinate system AOB, the door body has a first-direction displacement parallel to the rear wall 33 of the door A second-direction displacement parallel to the side wall 32 of the door The first-direction displacement The component displacement on the A axis is The component displacement on the B axis is The second-direction displacement The component displacement on the A axis is The component displacement on the B axis is

[0308] Among them, referring to Figure 34 , during the process of the door body opening from 0° to 90°, as Figure 34 (a) and 34(b),

[0309] When the door body is opened to 90°, as Figure 34 (c),

[0310] During the process of the door body opening from 90° to G`, as Figure 34 (d),

[0311] During the process of the door body opening from G` to the maximum angle G max (the eighth angle G8), as Figure 34 (e),

[0312] In summary, in the solutions of the series of applications represented by CN115682517A, during the process of the door body opening from the closed state to 90°, the door body has a tendency to move inward and forward while rotating; during the process of the door body opening from 90° to G`, the door body has a tendency to move outward and forward while rotating; during the process of the door body opening from G` to the maximum angle G max (the eighth angle G8), the door body has a tendency to move inward and forward while rotating. That is, during the entire process of the door body opening, there is at least one stage where the door body keeps moving outward, which causes the angle of the door body of the refrigerator rotating in the receiving cabinet to decrease when continuing to open from 90°, thereby reducing the maximum angle that the door body of the refrigerator placed in the receiving cabinet can open.

[0313] Compared with the structure of the hinge components currently on the market (compared with the solutions in the series of applications represented by CN115682517A), for a refrigerator with a hinge component having the trajectory characteristics of this application, the commutation angle G` is an acute angle or a right angle (it is an obtuse angle in CN115682517A). During the entire process of opening the door body 30 (the maximum opening angle is an obtuse angle), relative to the cabinet body 10, the door body 30 has an instantaneous translation displacement of moving inward and forward while performing a simple rotational motion, so that the moving door body 30 maintains an inward and forward translational motion while rotating relative to its previous state. During the opening process of the above door body 30, the door body 30 moves inward. On the one hand, it compensates for the outward displacement of the first side edge W caused by the simple rotation of the door body 30 to limit the distance of the first side edge W exceeding the reference plane M0, effectively avoiding interference between the door body 30 and the storage cabinet 100 when the door body 30 is opened; on the other hand, it increases the distance between the door body 30 and the storage cabinet 100 to reduce the limitation of the maximum opening angle of the door body 30 placed in the storage cabinet 100 by the storage cabinet 100; in addition, the door body 30 moves forward at the same time, further reducing the limitation of the maximum opening angle of the door body 30 placed in the storage cabinet 100 by the storage cabinet 100; during the opening of the above door body 30, while performing a simple rotational opening, it has an inward and forward translational motion. The inward translation and the forward translation motion trends work together to jointly reduce the limitation of the maximum opening angle of the door body 30 placed in the storage cabinet 100 by the storage cabinet 100. In addition, the door body 30 has the above inward and forward translational motion trend throughout the entire opening process, maximizing the movement of the door body 30 out of the space limited by the storage cabinet 100, so that the maximum opening angle of the door body 30 placed in the storage cabinet 100 can reach an obtuse angle (settable, 115° or above or 120° or above), achieving the purpose of placing the refrigerator in the storage cabinet 100 and being able to be fully opened, facilitating users to take and place items.

[0314] It should be noted that in the above description, only some angles in the range of 0 to 90°, 90°, and some angles in the range of 90° to G max = G8 are used as representatives to illustrate the overall motion trend of the door body 30, but it can represent the motion trend in the corresponding range and can illustrate that the hinge component with the above trajectory characteristics of the present invention can enable the door body 30 to have an inward and forward translational motion trend throughout the rotational opening process.

[0315] The hinge component with the trajectory characteristics of the present invention enables the door body 30 to move inward and forward while rotating during the opening process, and at the same time, the trajectory (the guiding trajectory line S and the guiding trajectory line K) it has is smooth without sharp points, effectively ensuring the smoothness and stability of the opening of the door body 30.

[0316] Combined with the above description of the opening process of the door body 30, next, taking the door body 30 from its previous state (such as ) Rotate to the adjacent subsequent state around the midpoint of the axis line segment PQ relative to the door body 30 (angle ) The position is compared with the position of the door body 30 in the adjacent subsequent state in the present invention to illustrate the translational movement trend of the door body 30 relative to its previous state during the rotation movement when the door body 30 is opened under the setting of the hinge assembly with the trajectory characteristics of the present invention.

[0317] Combine Figures 33 - 39 As shown, it is assumed that the door body 30 rotates to the position of the adjacent subsequent state around the midpoint I of the axis line of the previous state (the door body 30 is represented by a dotted line). During this movement process, the rotation center of the door body 30 is fixed relative to the door body 30, and the rotation center of the door body 30 is the position where the midpoint I of the axis line of the previous state on the door body 30 is located; then under this movement trend, when the door body 30 is opened to the adjacent subsequent state, the first side edge W is located at W` relative to the box body 10; the second side edge N is located at N` relative to the box body 10; the side sealing edge F is located at F` relative to the box body 10.

[0318] As Figure 35 shown, the position of the door body 30 represented by the dotted line is the position reached when the door body 30 rotates a single first angle G1 around the midpoint I (I0) of the axis line segment PQ relative to the door body 30 when the door body 30 is closed; the position of the door body 30 represented by the solid line is the position reached when the door body 30 rotates and opens to the first angle G1 under the limitation of the hinge assembly of the present invention; Figure 36 shown, the position of the door body 30 represented by the dotted line is the position reached when the door body 30 rotates and opens to the first angle G1 under the limitation of the hinge assembly of the present invention, and then rotates a single second angle G2 around the midpoint I (the midpoint I (I1) of the axis line of the previous state) of the door body 30 at the first angle G1; the position of the door body 30 represented by the solid line is the position reached when the door body 30 rotates and opens to the second angle G2 under the limitation of the hinge assembly of the present invention. Similarly Figures 35 - 42 is a schematic diagram of the position comparison of the above two different opening methods at different opening angles. In summary, Figures 35 to 42 shown, the position of the door body 30 represented by the dotted line is the position reached when the door body 30 rotates and opens to the i-th angle under the limitation of the hinge assembly of the present invention, and then rotates a single (i + 1)-th angle around the midpoint I (the midpoint I (I i )) of the axis line of the door body 30 at the i-th angle; the position of the door body 30 represented by the solid line is the position reached when the door body 30 rotates and opens to the (i + 1)-th angle under the limitation of the hinge assembly of the present invention. The position reached at that time. Wherein, i belongs to any value from 0 to 7, and i is an integer.

[0319] It should be noted that the comparison between the position of the door body 30 in the current state of the present invention here and the position where the assumed door body 30 rotates from the previous state in the present invention around the midpoint I of the axis to the opening angle of the door body 30 in the present invention is representative, and it can represent and illustrate the translational movement trend of the door body 30 relative to the previous state during the opening process of the door body 30 in the present invention; here, only some selected angles ( are set to 0°, G1,..., G7, and the corresponding are set to G1,..., G8) are used for comparison and description to present and illustrate the translational movement trend when the door body 30 rotates and opens.

[0320] By comparing the setting of the present invention (the door body 30 rotates around a point that keeps changing dynamically relative to the door body 30) with the way that the door body 30 simply rotates around the midpoint I of its previous state axis, it can be known that:

[0321] During the process of the door body 30 opening from the closed state to G max , the position W of the first side edge is always on the side close to the second body side wall and away from the access opening of W'; the position N of the second side edge is always on the side close to the second body side wall and away from the access opening of N'; the position F of the side sealing edge is always on the side close to the second body side wall and away from the access opening of F'. That is, during the process of the door body 30 opening from the closed state to G max , while the door body 30 rotates and opens, it has a tendency to move inward and forward.

[0322] As Figure 43 shown, in the projection on the plane of the top wall of the box body 10, when the door body 30 rotates and opens to under the restriction of the hinge assembly with the trajectory characteristics of the present application, the midpoint I of the axis is recorded as the instantaneous midpoint I of the axis i relative to the position of the door body 30. With the instantaneous midpoint I of the axis i as the center and the line segment I i W as the radius, rotate from I i W along the opening direction of the door body 30 by to obtain the position of the point W' where the first side edge is located.

[0323] When the door body 30 continues to open from by and the opening angle is , the first side edge moves to W; by comparing the positions of the above W' and W, it can be known that during the process of the door body 30 opening from the closed state to , the position W of the first side edge is always on the side close to the second body side wall and away from the access opening of W'. Among them, and All belong to 0° to G max Any one of the values, and

[0324] Among them, the opening angle Is the opening angle Of the adjacent previous state. That is, the door body 30 is composed of Continuing to open will reach Position; Infinitely approaches 0.

[0325] The above position comparison method is also applicable to the second side edge, the side sealing edge and other points on the door body 30; and through comparison, it can be obtained that the door body 30 rotates and opens from the closed state to G max During the process, while the door body 30 rotates and opens, it has a tendency to move inward and forward.

[0326] It should be noted that the above can be used as a method for determining the translational motion trend when the door body 30 rotates and opens, in order to explore the translational motion process during the opening of the door body 30. When making a comparison, Any value in the range of 0° to 10° can be taken for comparison to visually display the translational motion trend. It should be noted that, The smaller it is, the more accurate the determination of the translational trend between its adjacent two states, Infinitely approaches 0.

[0327] In some embodiments of the present application, the commutation angle G` is greater than 45° and not greater than 90°. As a settable manner, the commutation angle G` belongs to any value in the range of 75° to 80°. The setting of the hinge assembly with the above trajectory characteristics enables the second-direction displacement To change from the first quadrant of the displacement coordinate system AOB to the third quadrant during the process of the door body 30 opening from the closed state to 90°, further increasing the speed of the door body 30 moving inward when opening from the commutation angle G` to 90°, being able to more quickly and more greatly increase the distance that the door body 30 moves inward, so as to increase the distance between the front wall 31 of the door body 30 and the inner wall of the receiving cabinet 100 when the door body 30 is opened to 90°, and reducing the limit on the maximum opening angle of the door body 30 continuing to open from 90° by the receiving cabinet 100.

[0328] In addition, with the setting of the hinge assembly having the above trajectory characteristics, during the process of the door body 30 opening from the closed state to the commutation angle G`, the second-direction displacement Is located in the first quadrant of the displacement coordinate system AOB, and the first-direction displacement Is located in the second quadrant of the displacement coordinate system AOB, effectively ensuring the displacement of the door body 30 along the positive direction of the B axis when opening, so that the door body 30 can move forward quickly when opening, and effectively reducing the extrusion amount on the door seal 5.

[0329] As described above, during the opening process of the door body 30, when the door body 30 is opened to the commutation angle G`, the distance between the midpoint I of the axis and the front wall 31 of the door is the largest. The above description is given by taking the commutation angle G` < 90°, that is, the commutation angle G` is an acute angle as an example.

[0330] In some embodiments of the present application, the commutation angle G` = G7 = 90°. That is, when the door body 30 is opened to 90°, the distance between the midpoint I of the axis and the front wall 31 of the door reaches the maximum value. That is, the midpoint I of the axis moves to the commutation midpoint I`.

[0331] Under the setting feature that the commutation angle G` = G7 = 90°, during the process of the door body 30 being opened from the closed state to 90°, refer to Figure 31 as shown, the first-direction displacement points to the inner front side (inward and forward side) of the box body 10, and the second-direction displacement points to the outer front side (outward and forward side) of the box body 10; in the specific process, it is the same as the process of the above-mentioned closed state being opened to G` (G` < 90°). That is, the component displacement of the first-direction displacement on the A axis is and the component displacement on the B axis is The second-direction displacement has a component displacement on the A axis of and a component displacement on the B axis of Among them, under the trajectory feature setting of the present invention, there is then there is, That is, during the process of the door body 30 being opened from the closed state to 90°, in the displacement coordinate system AOB, the door body 30 has a first translational displacement and a second translational displacement That is, during the process of the door body 30 being opened from the closed state to 90°, while the door body 30 rotates and opens relative to the box body 10, it has a movement tendency of translating inward and forward.

[0332] Under the setting feature that the commutation angle G` = G7 = 90°, the process of the door body 30 being opened from 90° to G8 is the same as the corresponding stage above. Refer to Figure 33 as shown, the first-direction displacement has a component displacement on the A axis of and a component displacement on the B axis of The second-direction displacement has a component displacement on the A axis of and a component displacement on the B axis of Among them, under the trajectory feature setting of the present invention, there is then there is, That is, during the process of the door body 30 being opened from 90° to G8, in the displacement coordinate system AOB, the door body 30 has a first translational displacement and the second translation displacement That is, during the process of the door body 30 being opened from 90° to G8, while the door body 30 rotates and opens relative to the box body 10, it has a movement tendency of translating inward and forward.

[0333] In summary, under the setting where the commutation angle G` = 90°, compared with the setting where G` < 90°, the door body 30 does not have the process of the door body 30 being opened from G` to G7 = 90° (G` < G7 = 90°) (as Figure 32 shown).

[0334] In some embodiments of the present application, G` = G6 = G7 = 90°.

[0335] Combining the movement conditions of the first shaft 41 relative to the guiding part 50 and the second shaft 42 relative to the guiding part 60 in the first stage, the second stage, and the third stage, during the opening process of the door body 30, relative to the door body 30, as the axis line segment PQ moves, the midpoint I of the axis moves relative to the door body 30. Among them, the movement trajectory of the midpoint I of the axis relative to the door body 30 is recorded as the midpoint trajectory line of the axis. Relative to the door body 30, along the direction from the end of the door body 30 far from the door side wall 32 to the door side wall 32, the distance between the midpoint I of the axis and the front wall 31 of the door first increases and then decreases. That is, the midpoint trajectory line of the axis first extends from its end far from the door side wall 32 in the direction away from the front wall 31 of the door and close to the door side wall 32, and then extends to the side close to the front wall 31 and the door side wall 32.

[0336] Among them, when the midpoint I of the axis moves to the commutation midpoint I`, the distance between the midpoint trajectory line of the axis and the front wall 31 of the door is the largest; at this time, the opening angle of the door body 30 is the commutation angle G`. That is, when the door body 30 is opened to the commutation angle G`, the midpoint I of the axis moves to the commutation midpoint I` where the distance from the front wall 31 of the door is the largest. As the door body 30 is opened, the movement tendency of the midpoint I of the axis changes at the commutation midpoint I` (from the direction of approaching the door side wall and away from the front wall of the door to the direction of approaching the door side wall and the front wall of the door), and the distance between the midpoint I of the axis and the front wall 31 of the door changes at the commutation midpoint I` (the distance between the midpoint I of the axis and the front wall 31 of the door changes from an increasing trend to a decreasing trend).

[0337] In some embodiments of the present application, the commutation angle G` is non-obtuse. That is, the commutation angle G` is an acute angle or a right angle.

[0338] Under the setting where the commutation angle G` is an acute angle, the movement tendency of the midpoint I of the axis is as follows:

[0339] During the process of the door body 30 being opened from the closed state to the commutation angle G`, the midpoint I of the axis moves relative to the door body 30 to the commutation midpoint I` on the side close to the door side wall 32 and away from the front wall 31 of the door;

[0340] During the process of the door body 30 being opened from the commutation angle G` to the eighth angle G8, the axial center point I moves relative to the door body 30 from the commutation midpoint I` to the side closer to the door side wall 32 and the front door wall 31.

[0341] In some embodiments of the present application, with the commutation angle G` set to a right angle, the movement trend of the axial center point I is as follows:

[0342] During the process of the door body 30 being opened from the closed state to 90°, the axial center point I moves relative to the door body 30 to the side closer to the door side wall 32 and away from the front door wall 31 to the commutation midpoint I`;

[0343] During the process of the door body 30 being opened from 90° to the eighth angle G8, the axial center point I moves relative to the door body 30 from the commutation midpoint I` to the side closer to the door side wall 32 and the front door wall 31.

[0344] In some embodiments of the present application, when the opening angle of the door body 30 is the first shaft 41 moves relative to the guiding portion 50 towards the direction closer to the first body side wall and the plane where the picking and placing opening is located. At the same time, the second shaft 42 moves relative to the guiding portion 60 towards the direction closer to the first body side wall and the plane where the picking and placing opening is located. Among them, belongs to any value within 0° to G max wherein any value.

[0345] That is, during the process of the door body 30 being opened from the closed state to the maximum angle G max (the eighth angle G8), the first shaft 41 moves relative to the guiding portion 50 and the second shaft 42 moves relative to the guiding portion 60 synchronously towards the direction closer to the first body side wall and the picking and placing opening. So that the door body 30 moves relative to the cabinet body 10 towards the side closer to the second body side wall and away from the picking and placing opening while rotating and opening, thereby reducing the limitation of the maximum opening angle of the door body 30 placed in the storage cabinet 100 on the storage cabinet 100.

[0346] Correspondingly, when the opening angle of the door body 30 is the first central axis P moves relative to the guiding portion 50 along the guiding track line S towards the direction closer to the first body side wall and the plane where the picking and placing opening is located. At the same time, the second central axis Q moves relative to the guiding portion 60 along the guiding track line K towards the direction closer to the first body side wall and the plane where the picking and placing opening is located. Among them, belongs to any value within 0° to G max wherein any value.

[0347] That is, during the process of the door body 30 being opened from the closed state to the maximum angle G maxDuring the process of the (eighth angle G8), the first central axis P and the second central axis Q move synchronously towards the first body side wall and the pick-and-place opening along the guiding track line S and the guiding track line K respectively, so that the door body 30 moves towards the side close to the second body side wall and away from the pick-and-place opening relative to the cabinet body 10 while rotating and opening, thereby reducing the limitation of the maximum opening angle of the door body 30 placed in the storage cabinet 100 by the storage cabinet 100.

[0348] In some embodiments of the present application, when the opening angle of the door body 30 is the first central axis P is located at the instantaneous guiding point of the guiding track line S and the second central axis Q is located at the instantaneous guiding point of the guiding track line K

[0349] The tangent line of the guiding track line S at the instantaneous guiding point is denoted as the first instantaneous tangent line, and the first instantaneous tangent line extends from the instantaneous guiding point towards the plane of the first body side wall and the pick-and-place opening;

[0350] The tangent line of the guiding track line K at the instantaneous guiding point is denoted as the second instantaneous tangent line, and the second instantaneous tangent line extends from the instantaneous guiding point towards the plane of the first body side wall and the pick-and-place opening; where belongs to any value within 0° to G max Any of the above settings enables the door body 30 to move towards the side close to the second body side wall and away from the pick-and-place opening relative to the cabinet body 10 while rotating and opening, thereby reducing the limitation of the maximum opening angle of the door body 30 placed in the storage cabinet 100 by the storage cabinet 100.

[0351] In some embodiments of the present application, when the opening angle of the door body 30 is the instantaneous displacement of the first central axis P relative to the guiding track line S is denoted as the first instantaneous displacement and the instantaneous displacement of the second central axis Q relative to the guiding track line K is denoted as the second instantaneous displacement

[0352] Among them, the first instantaneous displacement points to the plane of the first body side wall and the pick-and-place opening, and the second instantaneous displacement points to the plane of the first body side wall and the pick-and-place opening; where belongs to any value within 0° to G8. Any of the above settings enables the door body 30 to move towards the side close to the second body side wall and away from the pick-and-place opening relative to the cabinet body 10 while rotating and opening, thereby reducing the limitation of the maximum opening angle of the door body 30 placed in the storage cabinet 100 by the storage cabinet 100.

[0353] Among them, the guiding part 50 has a first guiding boundary line, and the guiding part has a first guiding boundary line.

[0354] Among them, the first guiding boundary line is an equidistant line parallel to the guiding track line S, and the first guiding boundary line is an equidistant line parallel to the guiding track line K. That is, the first guiding boundary line and the guiding track line S are parallel to each other, and the first guiding boundary line and the guiding track line K are parallel to each other.

[0355] In some embodiments of the present application, the radius of the first shaft 41 is denoted as the first radius R1, and the radius of the second shaft 42 is denoted as the second radius R2. The distance between the first guiding boundary line and the guiding track line S is the first radius R1; the distance between the first guiding boundary line and the guiding track line K is the second radius R2.

[0356] In some embodiments of the present application, the first guiding boundary line is located on one side of the guiding track line S close to or away from the front door wall 31;, the second guiding boundary line is located on one side of the guiding track line K close to or away from the front door wall 31.

[0357] In some embodiments of the present application, the first guiding boundary line is located on the side of the guiding track line S close to the front door wall 31, and at the same time, the second guiding boundary line is located on the side of the guiding track line K close to the front door wall 31.

[0358] In some embodiments of the present application, the first guiding boundary line is located on the side of the guiding track line S away from the front door wall 31, and at the same time, the second guiding boundary line is located on the side of the guiding track line K away from the front door wall 31.

[0359] As a kind of first instantaneous displacement and second instantaneous displacement The definition is as follows: when the opening angle of the door body 30 is the first central axis P moves relative to the guiding track line S to the instantaneous guiding point The straight line passing through the instantaneous guiding point and perpendicular to the first guiding boundary line intersects the first guiding boundary line at the first guiding foot The straight line passing through the instantaneous guiding point and perpendicular to the straight line where the instantaneous guiding point and the first guiding foot are located is denoted as the first guiding direction line; among them, the first instantaneous displacement is along the first guiding direction line and points to the plane where the first body side wall and the pick-and-place opening are located.

[0360] Similarly, when the opening angle of the door body 30 is the second central axis Q moves relative to the guiding track line K to the instantaneous guiding point The straight line passing through the instantaneous guiding point A straight line perpendicular to the first guiding boundary line intersects the first guiding boundary line at the first guiding foot of perpendicularity. Through the instantaneous guiding point And with the instantaneous guiding point And the first guiding foot of perpendicularity The straight line where they are located The perpendicular straight line is denoted as the first guiding direction line; among them, the second instantaneous displacement Is along the first guiding direction line and points to the plane where the first body side wall and the pick-and-place opening are located.

[0361] That is, the first instantaneous displacement The second instantaneous displacement Is determined by determining the first guiding direction line and the first guiding direction line.

[0362] It should be noted that when the guiding part 50 is set as a guiding groove and the guiding part 60 is set as a guiding groove structure, in the projection on the plane where the top wall of the box body 10 is located, the groove wall of the guiding groove is the first guiding boundary line, and the groove wall of the guiding groove is the first guiding boundary line. Corresponding to the relative position relationship between the first guiding boundary line and the guiding track line and the relative position relationship between the first guiding boundary line and the guiding track line, the groove wall of the guiding groove and the groove wall of the guiding groove are determined; when determining the first instantaneous displacement The second instantaneous displacement The specific method is as follows:

[0363] When the opening angle of the door body 30 is , first determine the straight line passing through the first central axis P and perpendicular to the groove wall of the guiding groove, and then determine the first guiding direction line perpendicular to it and passing through the first central axis P through this straight line passing through the first central axis P and perpendicular to the groove wall of the guiding groove, so as to determine the first instantaneous displacement from the first guiding direction line

[0364] Similarly, when the opening angle of the door body 30 is , first determine the straight line passing through the second central axis Q and perpendicular to the groove wall of the guiding groove, and then determine the first guiding direction line perpendicular to it and passing through the second central axis Q through this straight line passing through the second central axis Q and perpendicular to the groove wall of the guiding groove, so as to determine the second instantaneous displacement from the first guiding direction line

[0365] It can be set that when determining the above, the groove wall of the guiding groove close to the front wall 31 of the door can be used as the first guiding boundary line, and the groove wall of the guiding groove close to the front wall 31 of the door can be used as the first guiding boundary line to determine.

[0366] As another way, the first instantaneous displacement And the second instantaneous displacement Are defined as follows: when the opening angle of the door body 30 is When the first central axis P moves relative to the guiding track line S to the instantaneous guiding point At this time, the contact point between the first shaft 41 and the first guiding boundary line is denoted as the instantaneous guiding contact point Through the instantaneous guiding point And with the instantaneous guiding point With the instantaneous guiding contact point The straight line where it is located The straight line perpendicular to it is denoted as the first guiding displacement line; among them, the first instantaneous displacement Along the first guiding displacement line and pointing to the plane where the first body side wall and the pick-and-place opening are located.

[0367] Similarly, when the opening angle of the door body 30 is The second central axis Q moves relative to the guiding track line K to the instantaneous guiding point At this time, the contact point between the second shaft 42 and the first guiding boundary line is denoted as the instantaneous guiding contact point Through the instantaneous guiding point And with the instantaneous guiding point With the instantaneous guiding contact point The straight line where it is located The straight line perpendicular to it is denoted as the first guiding displacement line; among them, the second instantaneous displacement Along the first guiding displacement line and pointing to the plane where the first body side wall and the pick-and-place opening are located.

[0368] That is, the first instantaneous displacement The second instantaneous displacement Is determined by determining the first guiding displacement line and the first guiding displacement line.

[0369] It should be noted that when the guiding part 50 is set as a guiding groove and the guiding part 60 is set as a guiding groove structure, in the projection on the plane where the top wall of the box body 10 is located, the groove wall of the guiding groove is the first guiding boundary line, and the groove wall of the guiding groove is the first guiding boundary line. Corresponding to the relative position relationship between the first guiding boundary line and the guiding track line and the relative position relationship between the first guiding boundary line and the guiding track line, determine the groove wall of the guiding groove and the groove wall of the guiding groove; when determining the first instantaneous displacement The second instantaneous displacement The specific method is as follows:

[0370] When the opening angle of the door body 30 is First, determine the instantaneous guiding point passing through the position of the first central axis P And the instantaneous guiding contact point between the first shaft 41 and the groove wall of the guiding groove Then through the instantaneous guiding point With the instantaneous guiding contact point The straight line where it is located To determine a first guiding displacement line perpendicular thereto and passing through the first central axis P, and thereby determine a first instantaneous displacement from the first guiding displacement line

[0371] Similarly, when the opening angle of the door body 30 is First, determine the instantaneous guiding point passing through the position of the second central axis Q and the instantaneous guiding contact point between the first shaft 41 and the groove wall of the guiding groove Then, through the instantaneous guiding point and the instantaneous guiding contact point on the straight line To determine a first guiding displacement line perpendicular thereto and passing through the second central axis Q, and thereby determine a second instantaneous displacement from the first guiding displacement line

[0372] It can be set that when determining the first instantaneous displacement and the second instantaneous displacement The groove wall of the guiding groove close to the front wall 31 of the door can be used as the first guiding boundary line, and the groove wall of the guiding groove close to the front wall 31 of the door can be used as the first guiding boundary line for determination.

[0373] In some embodiments of the present application, when the opening angle of the door body 30 is The midpoint I of the axis moves relative to the door body 30 in a direction close to the plane of the first body side wall and the access opening. Among them, belongs to any value in 0° to G8 (G max ).

[0374] That is, during the process of the door body 30 being opened from the closed state to the eighth angle G8 (G8 = the maximum angle G max ), the midpoint I of the axis moves relative to the door body 30 in a direction close to the plane of the first body side wall and the access opening. So that the door body 30 moves relative to the cabinet body 100 towards the side close to the second body side wall and away from the access opening while rotating and opening, thereby reducing the limitation of the maximum opening angle of the door body 30 placed in the storage cabinet 100 by the storage cabinet 100.

[0375] In some embodiments of the present application, when the opening angle of the door is The instantaneous displacement of the midpoint of the axis relative to the trajectory line of the midpoint of the axis is denoted as the instantaneous midpoint displacement Among them, the instantaneous midpoint displacement points to the plane of the first body side wall and the access opening; among them, belongs to any value in 0° to G max The above settings enable the door body 30 to move relative to the cabinet body 100 towards the side close to the second body side wall and away from the access opening while rotating and opening, thereby reducing the limitation of the maximum opening angle of the door body 30 placed in the storage cabinet 100 by the storage cabinet 100.

[0376] Among them, when the opening angle of the door body 30 is the midpoint I of the axis is located at the instantaneous midpoint of the midpoint locus line of the axis The midpoint locus line of the axis at the instantaneous midpoint The tangent line at the point is denoted as the instantaneous midpoint tangent line, and the instantaneous midpoint tangent line extends from the instantaneous midpoint in the direction close to the plane of the first body side wall and the pick-and-place opening. Among them, the instantaneous midpoint displacement is along the instantaneous midpoint tangent line and points to the plane of the first body side wall and the pick-and-place opening.

[0377] In some embodiments of the present application, in the direction perpendicular to the door side wall 32, the distance between the starting midpoint I0 and the commutation midpoint I' is denoted as |I0I'|`, and the distance between the commutation midpoint I' and the eighth midpoint I8 is denoted as |I'I8|`; among them, |I0I'|`:|I'I8|` belongs to any value of 1 to 3.

[0378] In some embodiments of the present application, in the door body coordinate system X1O1Y1, the slope of the straight line where the starting midpoint I0 and the commutation midpoint I' are located is denoted as F' I1 , and the slope of the straight line where the commutation midpoint I' and the eighth midpoint I8 are located is denoted as F' I2 ; among them, F' I2 > 0 > F' I1 , 1 > F' I2 > |F' I1 | > 0.

[0379] In some embodiments of the present application, 0.8 > F' I2 > |F' I1 | > 0.

[0380] In some embodiments of the present application, in the door body coordinate system X1O1Y1, the function of the midpoint locus line of the axis is a convex function; that is, the midpoint locus line of the axis bulges towards the side close to the door rear wall as a whole.

[0381] In some embodiments of the present application, the point with the maximum distance between the midpoint locus line of the axis and the front wall 31 of the door is denoted as the commutation midpoint I', the point with the maximum distance between the guiding locus line S and the front wall 31 of the door is the fourth guiding point P4, and the point with the maximum distance between the guiding locus line K and the front wall 31 of the door is the sixth guiding point Q6. Combining Figure 5 , the commutation midpoint I' is located on the side close to the door side wall 32 of the straight line P4Q6 where the fourth guiding point P4 and the sixth guiding point Q6 are located.

[0382] In some embodiments of the present application, the commutation midpoint I' is close to the straight line P4Q6.

[0383] In some embodiments of the present application, the distance between the commutation midpoint I` and the straight line P4Q6 is less than 1 mm.

[0384] In some embodiments of the present application, in ΔI`Q6P4 with the fourth guiding point P4, the sixth guiding point Q6, and the commutation midpoint I` as vertices, ∠I`P4Q6 is denoted as the second included angle σ2, and ∠I`Q6P4 is denoted as the third included angle σ3. Among them, the second included angle σ2 = ∠I`P4Q6 belongs to any value within 6° to 8°, and the third included angle σ3 = ∠I`Q6P4 belongs to any value within 4° to 6°. ∠Q6I`P4 belongs to any value within 168° to 170°.

[0385] In some embodiments of the present application, the foot of the perpendicular from the commutation midpoint I` to the side Q6P4 of ΔI`Q6P4 that is higher than the side Q6P4 is denoted as I`` (not shown in the figure); among them, the length of the line segment Q6I`` is denoted as |Q6I``|, the length of the line segment I``P4 is denoted as |I``P4|, and |Q6I``| : |I``P4| belongs to any value within 1 to 2.

[0386] In some embodiments of the present application, the commutation midpoint I` is located on the straight line P4Q6 where the fourth guiding point P4 and the sixth guiding point Q6 are located. That is, the commutation midpoint I`, the fourth guiding point P4, and the sixth guiding point Q6 are collinear, and the straight line where they are located is approximately perpendicular to the front door wall 31.

[0387] Optionally, the commutation midpoint I`, the fourth guiding point P4, and the sixth guiding point Q6 are collinear, and the straight line where they are located is approximately parallel to the door side wall 32. Among them, approximately parallel includes the case where the two included angles are not greater than 1°.

[0388] In some embodiments of the present application, in combination with Figure 5 , such as Figure 16 and Figure 44 shown, the axis midpoint locus line formed by the door body 30 opening from the closed state to G8 has two intersection points with the middle plane C. Among them, the axis midpoint locus line includes a first axis midpoint locus segment and a second axis midpoint locus segment. The first axis midpoint locus segment extends from its end far from the door side wall 32 to the direction away from the front door wall 31 and close to the door side wall 32 to the commutation midpoint I`; the second axis midpoint locus segment extends from the commutation midpoint I` to the direction close to the front door wall 31 and the door side wall 32 to the eighth midpoint I8.

[0389] In some embodiments of the present application, during the entire process of the door body 30 opening from the closed state to the maximum angle G max (the eighth angle G8), the axis midpoint I moves relative to the door body 30 first to the side close to the door side wall 32 and away from the front door wall 31, and passes through the middle plane C during the movement; then moves to the side close to the door side wall 32 and the front door wall 31, and passes through the middle plane C again during the movement.

[0390] The trajectory segment of the first axis center midpoint intersects the middle plane C at the first intersection point I1`, and the trajectory segment of the second axis center midpoint intersects the middle plane C at the second intersection point I2`. The commutation midpoint I` is located on the side of the middle plane C away from the door front wall 31, and both the eighth midpoint I8 and the starting midpoint I0 are located on the side of the middle plane C close to the door front wall 31.

[0391] The distance between the commutation midpoint I` and the middle plane C is denoted as τ1, the distance between the starting midpoint I0 and the middle plane C is denoted as τ2, and the distance between the eighth midpoint I8 and the middle plane C is denoted as τ3.

[0392] In some embodiments of the present application, the commutation midpoint I` is close to the middle plane C. As a settable manner, τ1 belongs to any value in the range of 0 to 2 mm.

[0393] In some embodiments of the present application, τ2:τ1 belongs to any value in the range of 3 to 4, and τ3:τ1 belongs to any value in the range of 1 to 2.

[0394] In some embodiments of the present application, G`:G8 belongs to any value in the range of 0.6 to 0.75.

[0395] In some embodiments of the present application, when the door body 30 is opened to G1`, the axis center midpoint I moves to the first intersection point I1`, and the axis center midpoint I moves onto the middle plane C. When the door body 30 is opened to G2`, the axis center midpoint I moves to the second intersection point I2`, and the axis center midpoint moves onto the middle plane C; where G1`<G2`.

[0396] During the process of the door body 30 being opened from G1` to G2`, the axis center midpoint I is located on the side of the middle plane C away from the door front wall 31. During the process of the door body 30 being opened from the closed state to G1` and during the process of the door body 30 being opened from G2` to G8, the axis center midpoint I is located on the side of the middle plane C close to the door front wall 31.

[0397] In some embodiments of the present application, G1`:G` belongs to any value in the range of 0.4 to 0.6, and G`:G8 belongs to any value in the range of 0.6 to 0.75.

[0398] In some embodiments of the present application, when the door body 30 is opened to G3`, the axis center midpoint I moves to I3`, and the distance between the axis center midpoint (I3`) and the middle plane C is τ3. That is, when the door body 30 is opened to G3`, the distance between the axis center midpoint I and the middle plane C is equal to the distance between the axis center midpoint I and the middle plane C when the door body 30 is opened to G8 (G max )

[0399] In some embodiments of the present application, during the process of the door body 30 being opened from G3` to G8, the midpoint I of the axis approaches the middle plane C. Optionally, the distance between the midpoint I of the axis and the middle plane C is less than 3 mm. That is, during the process of the door body 30 being opened from G3` to G8, the midpoint I of the axis approaches the middle plane C. The above settings enhance the stability of the opening of the door body 30.

[0400] In some embodiments of the present application, G3`:G8 belongs to any value in the range of 0.16 to 0.2. G3`:G` belongs to any value in the range of 0.24 to 0.3. That is, during the process of the door body 30 being opened from the closed state to G8, in most of the stroke (0.8 to 0.94), the midpoint I of the axis approaches the middle plane C of the door body 30, increasing the stability of the opening of the door body 30.

[0401] In some embodiments of the present application, during the process of the door body 30 being opened from G3` to G8, the middle plane C is located between the first central axis P and the second central axis Q, making the force condition during the opening process of the door body 30 better and improving the stability of the opening of the door body 30.

[0402] In some embodiments of the present application, in combination Figures 45 - 47 , the angular bisecting plane of the angle formed by the front door wall 31 and the door side wall 32 is denoted as the first angular bisecting plane V1; the angular bisecting plane of the angle formed by the rear door wall 33 and the door side wall 32 is denoted as the second angular bisecting plane V2. In the projection within the plane of the top wall of the box body 10, the first angular bisecting plane V1 and the second angular bisecting plane V2 intersect at the intersection point J.

[0403] During the opening process of the door body 30 relative to the box body 10, the first angular bisecting plane V1 and the second angular bisecting plane V2 move with the door body 30 relative to the box body 10; and during the opening process of the door body 30, the first angular bisecting plane V1 and the second angular bisecting plane V2 remain stationary relative to the door body 30.

[0404] In some embodiments of the present application, the dihedral angle formed by the plane where the front door wall 31 is located and the plane where the door side wall 32 is located is 90°, and the dihedral angle formed by the plane where the rear door wall 33 is located and the plane where the door side wall 32 is located is also 90°.

[0405] In some embodiments of the present application, in combination Figures 45 - 46 , during the opening process of the door body 30, when the first central axis P moves to the fourth guiding point P4 where the distance between the guiding trajectory line S and the front door wall 31 is the largest, the opening angle of the door body 30 is the fourth angle G4. Relative to the door body 30, the midpoint I of the axis moves to the fourth midpoint I4. The fourth midpoint I4 coincides with the intersection point J. It should be noted that the coincidence of the fourth midpoint I4 and the intersection point J includes the case where the distance between the two points is not greater than any value of 0.3 mm.

[0406] That is, during the opening process of the door body 30, when the first central axis P moves to the fourth guiding point P4 where the distance between the guiding track line S and the front wall 31 of the door is the largest, the midpoint I of the axis moves to the intersection of the first angular bisecting plane V1 and the second angular bisecting plane V2.

[0407] In some embodiments of the present application, the distance between the fourth midpoint I4 and the intersection point J is denoted as λ1, and λ1 belongs to any value not greater than 1 mm.

[0408] In some embodiments of the present application, when the opening angle of the door body 30 is the fourth angle G4 and the first central axis P moves to the fourth guiding point P4 where the distance between the guiding track line S and the front wall 31 of the door is the largest, the included angle between the straight line where the axis line segment PQ is located and the first angular bisecting plane V1 is less than 30°.

[0409] In some embodiments of the present application, for the fourth angle G4: the commutation angle G` belongs to any value between 0.4 and 0.6.

[0410] In some embodiments of the present application, in combination with Figure 46 , during the process of the door body being opened from the closed state to the fourth angle G4, the midpoint I of the axis is located on the side of the second angular bisecting plane V2 away from the door side wall 32, and the midpoint I of the axis is close to the second angular bisecting plane V2.

[0411] In some embodiments of the present application, during the process of the door body being opened from the closed state to the fourth angle G4, the maximum value of the distance between the midpoint I of the axis and the second angular bisecting plane V2 is denoted as λ2; λ2 belongs to any value between 0 and 2 mm.

[0412] In some embodiments of the present application, during the process of the door body being opened from the closed state to the fourth angle G4, the distance between the midpoint I of the axis and the second angular bisecting plane V2 first increases and then decreases.

[0413] In some embodiments of the present application, in combination with Figures 45 - 46 , the midpoint track line of the axis and the first angular bisecting plane V1 have one and only one intersection point;

[0414] In some embodiments of the present application, the midpoint track line of the axis and the second angular bisecting plane V2 have one and only one intersection point.

[0415] Among them, the intersection point of the midpoint track line of the axis and the first angular bisecting plane V1 is denoted as the first point I J1 , and the intersection point with the second angular bisecting plane V2 is denoted as the second point I J2 .

[0416] In some embodiments of the present application, the first point I J1 The distance from the second angular bisecting plane V2 belongs to any value between 0 and 0.5 mm, and the second point I J2 The distance from the first angular bisecting plane V1 belongs to any value between 0 and 1 mm.

[0417] In some embodiments of the present application, the first point I J1 and the second point I J2 are both close to the intersection point J. The distance between the first point I J1 and the intersection point J and the distance between the second point I J2 and the intersection point J both belong to any value in the range of 0 to 1 mm.

[0418] In some embodiments of the present application, the distance between the first point I J1 and the intersection point J is less than 0.5 mm, and the distance between the second point I J2 and the intersection point J is less than 1 mm.

[0419] In some embodiments of the present application, as shown in Figure 47 , when the door body 30 is in the closed state, the first shaft 41 and the second shaft 42 are respectively located on opposite sides of the second angular bisecting plane V2, and both the first shaft 41 and the second shaft 42 are located on the side of the first angular bisecting plane V1 close to the front wall 31 of the door. So that during the opening or closing process of the door body 30, the door body 30 generates a larger lateral displacement (perpendicular to the direction of the first body side wall) relative to the box body 10.

[0420] In some embodiments of the present application, when the door body 30 is in the closed state, the axis midpoint I (starting midpoint I0) is close to the second angular bisecting plane V2.

[0421] In some embodiments of the present application, when the door body 30 is in the closed state, the distance between the axis midpoint I (starting midpoint I0) and the second angular bisecting plane V2 belongs to any value in the range of 0 to 2 mm.

[0422] In some embodiments of the present application, when the door body 30 is in the closed state, the distance between the first central axis P and the second angular bisecting plane V2 is denoted as λ P , and the distance between the second central axis Q and the second angular bisecting plane V2 is denoted as λ Q ; wherein, λ P : λ Q ≤1.

[0423] In some embodiments of the present application, λ P : λ Q belongs to any value in the range of 0.4 to 0.6.

[0424] In some embodiments of the present application, a first limiting member is provided on the first hinge member, and a second limiting member is provided on the second hinge member; the second limiting member is used for when the door body 30 is opened to the maximum angle G maxWhen at the eighth angle (G8), it cooperates with the first limiting member to limit the continuous rotational opening of the first hinge member relative to the second hinge member, avoiding the continuous opening of the door body 30 of the refrigerator placed in the receiving cabinet 100 from colliding with the receiving cabinet 100 and causing damage to the door body 30.

[0425] In some embodiments of the present application, the second limiting member is a limiting portion provided at the lower end of the door body 30; the first limiting member is arranged as a limiting surface located at the end of the hinge plate 40 away from the box body 10 and close to the position of the first body side wall. When the door body 30 rotates to the maximum allowed position (the opening angle of the door body G max ), the limiting portion abuts against the limiting surface, thereby stopping the door body 30 from continuing to rotate.

[0426] In some embodiments of the present application, when the positioning central axis P moves to the eighth positioning point P8 and the second central axis Q moves to the eighth guiding point Q8, the limiting portion at the lower end of the door body 30 abuts against the limiting surface of the hinge plate 40, so that the door body 30 is opened to the maximum angle, avoiding the door body 30 placed in the receiving cabinet 100 from colliding with the receiving cabinet when opened to the maximum angle and causing damage to the door body 30.

[0427] In some embodiments of the present application, in combination Figures 5 - 15 As shown, in this embodiment, a first reference plane M1 and a second reference plane M2 are further defined. Among them, as shown in Figure 15 As shown, the first reference plane M1 is a plane parallel to the reference plane M0 and perpendicular to the plane where the access opening is located. The first reference plane M1 is the inner wall plane of the receiving cabinet 100 adjacent to the first body side wall; that is, the first reference plane M1 is parallel to the first body side wall, and the distance between it and the first body side wall is α`; the second reference plane M2 is the plane where the access opening of the storage room is located. The first reference plane M1 and the second reference plane M2 do not move along with the opening process of the door body 30 relative to the box body 10, and are reference planes that remain stationary relative to the box body 10.

[0428] During the opening process of the door body 30, the first side edge W moves along with the opening of the door body 30, and its movement trajectory is recorded as the first side edge trajectory line. In the projection on the top wall of the box body 10, during the opening process of the door body 30, the first side edge W first moves in the direction close to the first reference plane M1 and the second reference plane M2, and then moves in the direction away from the first reference plane M1 and close to the second reference plane M2.

[0429] In some embodiments of the present application, when the door body 30 is opened to G2, the first central axis P moves to the second guiding point P2 of the guiding track line S; at this time, the distance between the first side edge W and the reference plane M0 is the largest. To control the distance by which the first side edge W approaches the first reference plane M1 to be less than the minimum distance between the refrigerator and the inner wall of the receiving cabinet 100 when the door body 30 of the refrigerator is closed, thereby effectively avoiding interference between the door body 30 and the receiving cabinet 100.

[0430] In some embodiments of the present application, G2 is any value in [16°, 25°]. That is, when the door body 30 is opened to a relatively small angle, the first side edge W has moved to the position where it is the farthest from the first body side wall during the entire opening process of the door body 30.

[0431] In some embodiments of the present application, in combination with the guiding track line S, a linear first guiding line and a curved second guiding line are provided. During the opening process of the door body 30, when the first central axis P moves to the connection point of the first guiding line and the second guiding line, the distance between the first side edge W and the reference plane M0 is the largest. That is, during the opening process of the door body 30, when the first central axis P moves to the end point of the linear first guiding line close to the door side wall 32, the distance between the first side edge W and the reference plane M0 is the largest.

[0432] In some embodiments of the present application, when the door body 30 is opened to G4, the first central axis P moves to the fourth guiding point P4, which is the position where the guiding track line S is the farthest from the front wall 31 of the door. At this time, the distance between the first side edge W and the reference plane M0 is the largest.

[0433] During the opening process of the door body 30, the second side edge N moves as the door body 30 opens, and its movement track is recorded as the second side edge track line. In the projection on the top wall of the box body 10, during the opening process of the door body 30, the second side edge N first moves in a direction away from the first reference plane M1 and closer to the second reference plane M2, and then moves in a direction away from the first reference plane M1 and the second reference plane M2.

[0434] In some embodiments of the present application, when the door body 30 is opened to G2, the first central axis P moves to the second guiding point P2 of the guiding track line S; at this time, the distance between the second side edge N and the second reference plane M2 is the smallest.

[0435] In some embodiments of the present application, G2 is any value in [16°, 25°]. That is, when the door body 30 is opened to a relatively small angle, the second side edge N has moved to the position where it is the closest to the second reference plane M2 during the entire opening process of the door body 30. To control the distance by which the second side edge approaches the access opening and avoid interference between the second side edge N and the box body 10.

[0436] In some embodiments of the present application, in the manner of combining a linear first guiding line and a curved second guiding line with the guiding trajectory line S, when the first central axis P moves to the connection point of the first guiding line and the second guiding line during the opening process of the door body 30, the distance between the first side edge W and the reference plane M0 is the largest. That is, during the opening process of the door body 30, when the first central axis P moves to the end point of the linear first guiding line close to the door side wall 32, the distance between the second side edge N and the plane where the pick-and-place opening is located (the second reference plane M2) is the smallest.

[0437] During the opening process of the door body 30, the side sealing edge F moves along with the opening of the door body 30, and its movement trajectory is recorded as the side sealing edge trajectory line. In the projection on the top wall of the box body 10, during the opening process of the door body 30, the side sealing edge F first moves in a direction away from the first reference plane M1 and close to the second reference plane M2, then moves in a direction away from the first reference plane M1 and the second reference plane M2, and then moves in a direction close to the first reference plane M1 and away from the second reference plane M2. The above settings enable the side sealing edge F to move outwards in the final stage of the opening of the door body 30, which can prevent the door body 30 from blocking the pick-and-place opening due to the inward movement of the side sealing edge F in the early stage of the opening of the door body 30, thereby increasing the space utilization rate of the storage drawer for the lateral dimension of the storage room.

[0438] In some embodiments of the present application, when the door body 30 is opened to G1, the distance between the side sealing edge F and the second reference plane M2 is the smallest.

[0439] In some embodiments of the present application, G1 is any value in [10°, 15°]. That is, when the door body 30 is opened to a relatively small angle, the side sealing edge F has moved to the position where its distance from the second reference plane M2 is the smallest during the entire opening process of the door body 30. This enables the door seal 5 to quickly move away from the box body 10 and reduces the extrusion amount of the door seal 5 during the opening process of the door body 30.

[0440] In some embodiments of the present application, when the door body 30 is opened to G F the distance between the side sealing edge F and the first body side wall is the largest. In this embodiment, the plane passing through the side sealing edge F when the door body 30 is opened to G F and parallel to the first body side wall is defined as the third reference plane M3 (not shown in the figure). During the opening process of the door body 30 relative to the box body 10, the third reference plane M3 does not move along with it and is a reference plane that remains stationary relative to the box body 10.

[0441] In some embodiments of the present application, G FIt belongs to any value between 90° and 95°. The above limitation makes the distance between the side sealing edge F and the side wall of the first body the largest when the door body 30 is opened to near 90°. In the later stage of opening the door body 30, the side sealing edge F has a large opening stroke and moves outward, so as to compensate more for the displacement of the side sealing edge F moving inward in the early stage of opening the door body 30, so as to reduce the occlusion of the door body 30 on the access opening to a greater extent.

[0442] In some embodiments of the present application, the door body 30 is opened from the closed state to the maximum angle G max (the eighth angle G8), the second side edge N is located entirely on the side of the third reference plane M3 close to the side wall of the first body.

[0443] In some embodiments of the present application, when the door body 30 is opened to the maximum angle G max (the eighth angle G8), the side sealing edge F is located between the second side edge N and the third reference plane M3 (including on the third reference plane M3) to prevent the second side edge N from becoming the main factor affecting the lateral dimension of the access opening due to the excessive opening angle of the door body 30. That is, during the opening process of the door body 30, the second side edge N is always located outside the side sealing edge F. That is, when the door body 30 is opened from G F to the maximum angle G max (the eighth angle G8), as the opening angle of the door body 30 increases, the occlusion of the door seal 5 on the access opening gradually decreases, and the occlusion of the door body 30 on the access opening gradually decreases, so that the lateral dimension of the drawer installed in the storage room can be increased, the space utilization rate of the storage room can be increased, and it is convenient for users to take and place the items stored on the door shelf.

[0444] In some embodiments of the present application, during the opening process of the door body 30, the sum of the forces received by the first shaft 41 and the second shaft 42 remains relatively constant.

[0445] In some embodiments of the present application, the sum of the forces received by the first shaft 41 and the second shaft 42 fluctuates within the range of [F - 3, F + 3]. Wherein, the unit is Newton.

[0446] In some embodiments of the present application, during the closing process of the door body 30, when the door body 30 is closed to G1``, the sum of the forces received by the first shaft 41 and the second shaft 42 begins to increase as the door body 30 continues to close.

[0447] In some embodiments of the present application, when the door body 30 is closed from G1`` to G2``, the sum of the forces received by the first shaft 41 and the second shaft 42 increases to the maximum value during the entire opening or closing process of the door body 30. When the door body 30 continues to close from G2``, the sum of the forces received by the first shaft 41 and the second shaft 42 begins to decrease.

[0448] In some embodiments of the present application, when the door body 30 is closed from G2`` to G3``, the sum of the forces exerted on the first shaft 41 and the second shaft 42 is substantially equal to the sum of the forces when the door body 30 is closed to G1``.

[0449] In some embodiments of the present application, a first mating portion is provided on the first hinge member, and a second mating portion is provided on the second hinge member; the second mating portion is used to cooperate with the first mating portion to unlock or lock the door body 30 and the box body 10.

[0450] Among them, when the door body 30 is closed, when the door body 30 is closed to G1``, the first mating portion contacts the second mating portion; when the door body 30 is closed to G3``, the first mating portion and the second mating portion are locked. During the process of the door body 30 being closed from G1`` to G3``, the second mating portion first undergoes elastic deformation to be converted into elastic potential energy, and then the elastic potential energy is released to drive the door body 30 to close automatically.

[0451] In some embodiments of the present application, when the door body 30 is closed to G2``, the elastic deformation amount of the second mating portion is the largest.

[0452] In some embodiments of the present application, the guide track line S includes a first guide line and a second guide line connected to one end of the first guide line close to the door side wall 32; the first guide line is an arc, and the second guide line is a curve.

[0453] Compared with the setting method of the first guide line being a straight line, when the first guide line is set as a straight line, the first shaft 41 moves relative to the door body 30 toward the side close to the door rear wall 33, and the effect of reducing the wear of the first shaft 41 due to the force is better. Because in actual production and processing, compared with the processing of a straight line, it is difficult to control the processing error of a curve (including an arc), and the detectability is poor, which easily causes the door body 30 to be not smooth when opening or closing.

[0454] In some embodiments of the present application, the guide track line S includes a first guide line and a second guide line connected to one end of the first guide line close to the door side wall 32; the first guide line is an arc, and the second guide line is an arc.

[0455] In some embodiments of the present application, the guide track line S includes a first guide line and a second guide line connected to one end of the first guide line close to the door side wall 32; the first guide line is a straight line, and the second guide line is an arc.

[0456] In some embodiments of the present application, the first guide line and the second guide line are tangentially connected.

[0457] In some embodiments of the present application, the first guiding line extends from the end away from the door sidewall 32 towards the direction close to the door sidewall 32 and the door rear wall 33, and the second guiding line first extends from the end of the first guiding line close to the door sidewall 32 towards the direction close to the door sidewall 32 and the door rear wall 33, and then extends towards the direction close to the door sidewall 32 and the door front wall 31.

[0458] In some embodiments of the present application, such as Figures 48 - 52 shown, the guiding track line S includes a first guiding line (P0P2), a second guiding line (P2P2`) connected to the end of the first guiding line close to the door sidewall 32, and a third guiding line (P2`P8) connected to the end of the second guiding line close to the door sidewall 32. Among them, the first guiding line is a straight line, the second guiding line is an arc, and the third guiding line is a straight line. Among them, the connection point of the first guiding line and the second guiding line is P2, and the connection point of the second guiding line and the third guiding line is P2`.

[0459] In some embodiments of the present application, the straight first guiding line extends from the end away from the door sidewall 32 towards the direction close to the door sidewall 32 and the door rear wall 33, the arc-shaped second guiding line first extends from the end of the first guiding line close to the door sidewall 32 towards the direction close to the door sidewall 32 and the door rear wall 33, and then extends towards the direction close to the door sidewall 32 and the door front wall 31, and the straight third guiding line extends towards the direction close to the door sidewall 32 and the door front wall 31.

[0460] In some embodiments of the present application, the first guiding line, the second guiding line and the third guiding line are connected in a tangent sequence.

[0461] In some embodiments of the present application, the center of the circle where the arc-shaped second guiding line (P2P2`) is located is close to the straight line P0P8 where the starting guiding point P0 and the eighth guiding point P8 are located.

[0462] In some embodiments of the present application, the center of the circle where the arc-shaped second guiding line (P2P2`) is located is on the straight line P0P8 where the starting guiding point P0 and the eighth guiding point P8 are located.

[0463] In some embodiments of the present application, the distance between the center of the circle where the arc-shaped second guiding line (P2P2`) is located and the straight line P0P8 is any value within 0 to 2 mm.

[0464] In some embodiments of the present application, the center of the circle where the arc-shaped second guiding line (P2P2`) is located is on the side of the straight line P0P8 close to the door rear wall 33 and the door sidewall 32.

[0465] In some embodiments of the present application, the included angle between the linear first guiding line (P0P2) and the front door wall 31 is any value within the range of 17° to 21°; the included angle between the linear third guiding line (P0P2`) and the front door wall 31 is any value within the range of 65° to 70°.

[0466] In some embodiments of the present application, the center of the circle where the arc-shaped second guiding line is located is denoted as O2. Among them, the included angle between the straight line O2P2 and the front door wall 31 is any value within the range of 69° to 73°; the included angle between the straight line O2P2` and the front door wall 31 is any value within the range of 20° to 25°. The above limits the extension trend of the guiding trajectory line S, so that the guiding trajectory line S extends smoothly and matches the guiding trajectory line K to guide the movement of the first central axis P and the second central axis Q.

[0467] In some embodiments of the present application, ∠P2O2P2` is any value within the range of 83° to 90°.

[0468] In some embodiments of the present application, see Figure 50 , the included angle between the straight line P0P4 where the starting guiding point P0 and the fourth guiding point P4 are located and the straight line P4P8 where the fourth guiding point P4 and the eighth guiding point P8 are located is denoted as γ1, and γ1 = ∠P0P4P8 is an obtuse angle.

[0469] In some embodiments of the present application, γ1 is any value within the range of 100° to 120°.

[0470] In some embodiments of the present application, γ1 is any value within the range of 110° to 114°. The above limitation on γ1 limits the extension trend of the guiding trajectory line S, so that when the first central axis P moves relative to the guiding trajectory line S and the second central axis Q moves relative to the guiding trajectory line K, the door body 30 is driven to move inward and forward, thereby reducing the limitation of the maximum opening angle of the door body 30 by the storage cabinet 100, so that the door body 30 placed in the storage cabinet 100 can be opened to more than 115°.

[0471] In some embodiments of the present application, see Figure 50 , the straight line where the starting guiding point P0 and the eighth guiding point P8 are located is denoted as P0P8. The point on the guiding trajectory line S with the maximum distance from the straight line P0P8 is denoted as the first inflection point P n . Among them, γ2 = ∠P0P n P8 is an obtuse angle.

[0472] In some embodiments of the present application, γ2 = ∠P0P n P8 is any value within the range of 100° to 115°.

[0473] In some embodiments of the present application, γ2 = ∠P0P nP8 belongs to any value within 105° to 109°. The above limitation on γ1 limits the extension trend of the guiding trajectory line S, so that when the first central axis P moves relative to the guiding trajectory line S and the second central axis Q moves relative to the guiding trajectory line K in cooperation with the guiding trajectory line, the door body 30 is driven to move inwards and forwards, thereby reducing the limitation of the maximum opening angle of the accommodating cabinet 100 on the door body 30, enabling the door body 30 placed in the accommodating cabinet 100 to be opened to more than 115°.

[0474] In some embodiments of the present application, when the door body 30 is opened to G n , the first shaft 41 moves to the first inflection point P n , and at this time, the first side edge W is located outside the plane where the door side wall 32 is located when the door body 30 is closed. That is, the distance between the first side edge W and the first reference plane M1 when the door body 30 is opened to G n is less than the distance between the first side edge W and the first reference plane M1 when the door body 30 is in the closed state.

[0475] In some embodiments of the present application, when the door body 30 is opened, before the first shaft 41 moves to the first inflection point P n , that is, when the opening angle of the door body 30 is less than G n , the first side edge W of the door body 30 is outside the plane where the door side wall 32 is located when the door body 30 is closed (the side away from the second body side wall). The above design is because if the first side edge W is not outside the plane where the door side wall 32 is located when the door body 30 is closed, a relatively large displacement of the door body 30 inwards is required, which will cause the included angle between the two sliding grooves to be too small and is prone to self-locking and jamming. Therefore, when the door body 30 is opened, the first side edge W is outside the plane where the door side wall 32 is located when the door body 30 is closed, and the exceeded distance does not affect the clearance requirements of the embedded type.

[0476] In some embodiments of the present application, when the door body 30 is opened, the distance that the first side edge W is outside the plane where the door side wall 32 is located when the door body 30 is closed is controlled between 1 - 2 mm. Because when the refrigerator 10 is embedded in the accommodating cabinet 100, at least a space of more than 2 mm needs to be reserved between the accommodating cabinet 100 and the door body of the refrigerator to prevent the situation of insufficient space caused by uneven ground or deformation of the accommodating cabinet 100. Otherwise, the refrigerator cannot be pushed into the accommodating cabinet 100. If no gap is left, the refrigerator cannot be pushed into the accommodating cabinet space.

[0477] In some embodiments of the present application, when the door body 30 is opened to G n , the first central axis P moves to the first inflection point P of the guiding trajectory line S n ; at this time, the distance between the first side edge W and the reference plane M0 is the largest. That is, at this time, the distance between the first side edge W and the first reference plane M1 is the smallest.

[0478] In some embodiments of the present application, when the door body 30 is in the closed position, the minimum distance between the position of the first shaft 41 in the guiding portion 50 and the guiding portion 60 is denoted as the first distance A1.

[0479] When the door body 30 is opened and the first shaft 41 moves to the first inflection point P of the guiding track line S n the minimum distance between the position of the first shaft 41 in the guiding portion 50 and the guiding portion 60 is denoted as the second distance A2.

[0480] Among them, both A1 and A2 belong to any value within 0 to 5 mm. In order to make the structures of the guiding portion 50 and the guiding portion 60 more compact, the door body can be made thinner, so that when the opening angle of the door body 30 is 90°, the door body 30 is located inside the side wall of the first body, and the distance between the door body 30 and the side wall of the first body is increased.

[0481] In some embodiments of the present application, both A1 and A2 belong to any value within 1.5 mm to 3 mm. On the one hand, it makes the structures of the guiding portion 50 and the guiding portion 60 more compact, and on the other hand, it ensures the strength of the guiding portion 50 and the guiding portion 60.

[0482] As a measurement method, the guiding portion 50 is set as a guiding groove, and the guiding portion 60 is set as a guiding groove; the guiding track line is the central track line of the guiding groove, and the guiding track line is the central track line of the guiding groove;

[0483] The groove wall of the guiding groove close to the guiding groove is denoted as the first guiding wall, and the groove wall of the guiding groove close to the guiding groove is denoted as the first guiding wall; that is, the groove wall of the guiding groove close to the door rear wall 33 is the first guiding wall, and the groove wall of the guiding groove close to the door front wall is the first guiding wall.

[0484] In the plane of the top wall of the box body, the straight line passing through the first central axis P and intersecting with the guiding track line K is denoted as the measurement line. The measurement line intersects the first guiding wall at the first test point U1, and the measurement line intersects the first guiding wall at the second test point U2; the distance between the position of the first shaft 41 in the guiding portion 50 and the guiding portion 60 is the distance |U1U2| between the first test point U1 and the second test point U2. By changing the angle between the test line passing through the first central axis P and the guiding track line K and the door front wall 31, the minimum distance |U1U2| between the position of the first shaft 41 in the guiding portion 50 and the guiding portion 60 is determined min , and the magnitudes of A1 and A2 can be obtained by this method. Above, the first distance A1 < the second distance A2.

[0485] In some embodiments of the present application, referring to Figure 50 , on the premise that the guiding track line S includes a linear first guiding line and a second guiding line connected to the first guiding line. The straight line where the second guiding point P2 and the eighth guiding point P8 are located is denoted as P2P8. The point on the second guiding line with the maximum distance from the straight line P2P8 is denoted as the second inflection point Pm Among them, γ3 = ∠P2P m P8 is an obtuse angle.

[0486] In some embodiments of the present application, γ3 = ∠P2P m P8 belongs to any value in the range of 100° to 120°.

[0487] In some embodiments of the present application, γ3 = ∠P2P m P8 belongs to any value in the range of 110° to 113°.

[0488] In some embodiments of the present application, as Figures 51 - 52 shown, assume that the distance between the first central axis P or the second central axis Q and the first body side wall is a, and the distance between the first body side wall and the storage cabinet is m;

[0489] The plane located on the side of the first body side wall away from the second body side wall and at a distance of m from the first body side wall (such as the inner wall of the storage cabinet 100 close to the box body 10) is denoted as the first reference plane M1; the plane passing through the first side edge and parallel to the plane where the access opening is located is denoted as the fourth reference plane M4; the first reference plane M1 and the fourth reference plane M4 intersect at the limit edge line L x ;

[0490] When the door body 30 is in the closed state, the front wall 31 of the door body 30 is flush with the fourth reference plane M4, and the opening end face defined by the storage cabinet is flush with the fourth reference plane M4, that is, when the door body 30 is closed, the front wall 31 and the opening end face defined by the storage cabinet; at this time, the central axis at a distance of a from the first body side wall (taking the first central axis P in the drawing as an example) is at a distance of a - x from the front wall 31.

[0491] When the door body 30 is opened to 90°, the distance between the door body 30 and the first body side wall is x;

[0492] When the opening angle of the door body 30 is 90° + α (the maximum angle G max (= the eighth angle G8)), the door body 30 is in contact with the limit edge line L x (the end of the storage cabinet 100 that defines its opening); at this time, the central axis at a distance of a from the first body side wall (taking the first central axis P in the drawing as an example) is at a distance of b from the front wall 31.

[0493] ==== Among them, (a - x)tanα + b / cosα = a + m.

[0494] Among them, m ≥ 0, then (a - x)tanα + b / cosα ≥ a.

[0495] There are 5 variables in the above equation:

[0496] The distance from the first central axis P to the side wall of the first body is a. When the door is opened 90°, the distance from the door body to the side wall of the first body is x. The maximum rotation angle is 90° + α. When rotated 90° + α, the distance from P to the front wall of the door is b, and the distance from the side wall of the first body to the accommodation cabinet is m.

[0497] When designing the trajectory of the hinge assembly, to ensure the best use effect of the double-axis hinge, m is generally a fixed value, and the smaller the better. The angle +α is the larger the better; it can be set that 0° ≤ α ≤ 45°.

[0498] In some embodiments of the present application, 15° ≤ α ≤ 45°. When the door body 30 is opened to 90°, the smaller the distance x that the door body offsets inward to the side wall of the first body, the better, and 0 is the best. a is the shaft positioning dimension, and b is the trajectory positioning dimension.

[0499] Example: When m = 3, α = 30°, and x = 0 are set, that is: the distance from the side wall of the first body to the side wall of the cabinet body is 3, the maximum rotation angle is 120°, and when the door is opened 90°, the front wall of the door body is flush with the side wall of the first body. At this time, atan30° + b / cos30° = a + 3, and b = [(a + 3) - atan30°]cos30°

[0500] Among them, regarding the relationship between x and α, it is as follows,

[0501] When assuming that m, a, and b are known data, a + m is a fixed value. The larger α is, the smaller cosα is The larger b / cosα is, the larger tanα is (0 < tanα ≤ 1). To satisfy the equation, (a - x)tanα should be smaller, a - x should be smaller, and x should increase.

[0502] When assuming x = 0 (that is, when the front wall of the door body is flush with the side wall of the first body when the door is opened 90°), atanα + b / cosα = a + m. By specifying a, b, and m, the α + 90° obtained at this time is the maximum rotation angle.

[0503] In some embodiments of the present application, a method for designing the shapes of a guiding portion and a guiding part. Specifically as follows:

[0504] (1) Set the design conditions.

[0505] During the process of the door body 30 being opened from 0 to 90°, the door body extends beyond the right side wall of the refrigerator by less than m = 1.5 mm, the compression amount of the door seal is less than n = 0.2 mm, when the door body 30 is opened to 90°, the distance that the door body 30 retracts inward relative to the side wall of the first body is less than s = 5 mm, and before the opening angle degree, the movement trajectory of the first axis is a straight line at an angle γ, the radius of the transition arc is r, the end straight line is a straight line of λ, and the overall trajectory is a straight line connecting an arc, and the arc connects another straight line.

[0506] (2) Design according to the set design conditions. The specific design method is as follows:

[0507] (2.1) Set the motion forms of the first axis and the second axis when the door body is opened.

[0508] xoy is a plane coordinate system, with the positive direction of the x-axis to the left and the positive direction of the y-axis upward. Let the initial position of the first axis be (x0, y0), and set the 120° end position as (x z , y z ) according to the initial point position. The thickness of the door body is h. Assume that the door body rotates around a fixed axis. When the door rotates by θ degrees, the lower right corner of the door body exceeds the cabinet by c1, and the compression amount of the door seal strip compressed by the door body is c2.

[0509] When designing the trajectory of the moving axis, the door body rotates around a fixed axis before the rotation angle is less than degrees; At degrees, the upper right corner of the door seal (side seal edge) is tangent to the straight line that is 0.2 mm away from the side wall of the door on the side close to the access opening of the door rear wall when the door body is closed; At

[0510] degrees, the lower right corner of the door body (the first side edge) is tangent to the 1.5 mm line of the refrigerator side wall.

[0511] (2.2) Determine the parameter range according to the set conditions.

[0512] Establish a coordinate system as shown in Figure 53 . Let the starting coordinate of the first axis be (x0, y0), the thickness of the door body be h, the thickness of the door seal strip (the dimension perpendicular to the door rear wall) be d, and the horizontal distance between the upper right corner of the door seal (side seal edge) and the first axis be l.

[0513] Then:

[0514]

[0515] As shown in Figure 53 , when the door body rotates by θ°, the length by which the lower right corner of the door body (the first side edge) exceeds the cabinet is c1. Then:

[0516] c1 = r1·cos(α - θ) - x0

[0517] Similarly, when the door body rotates by θ°, the length by which the upper corner of the door compresses the door strip is c2. Then:

[0518] c2 = r2·cos(β - θ) - h - d + y0

[0519] (2.2.1) The first part - fixed-axis rotation

[0520] When c2 ≤ 0.2 mm, the position of the first axis remains unchanged, and the refrigerator door rotates about a fixed axis.

[0521] At this time,

[0522] (2.2.2) The second part - linear motion

[0523] When occurs, the door body moves linearly along an angle γ, as shown in Figure 54 .

[0524] Figure 54 In , the compression of the door seal remains 0.2 mm, and the lower right corner (the first side edge) of the door body protrudes 1.5 mm beyond the door body (the right solid line is the 1.5 mm line)

[0525] Therefore, the angle γ can be expressed as:

[0526]

[0527] From Figure 54 it can be seen that

[0528]

[0529]

[0530] Before the rotation angle occurs, the first axis has been moving along the line at an angle γ, and the lower right corner (the first side edge) of the door body has been tangent to the 1.5 mm line.

[0531] At this time, after the lower right corner of the door body is tangent to the 1.5 mm line, the relationship between the position coordinates (x, y) of the first axis and x0, y0, h, and θ is:

[0532]

[0533] (2.2.3) The third part - movement along an arc

[0534] According to the previous text, it is known that the starting point (x0, y0) slope of the first straight line at 90° is the ordinate of the first axis position x0 - 5 (according to the design requirements, when the opening angle of the refrigerator door is 90°, the inward retraction should be less than 5 mm, then (x 90 , y 90 ) should be (x 90 , x0 - 5)). The end position coordinates (x z , y z ). Unknown, the tangent point (x2, y2) of the arc and the first straight line, the abscissa of the first axis position at 90° x 90 .

[0535] As Figure 55 shown, when both x 90 and the radius R are uncertain, a change in either R or x 90 will cause a change in the other. Therefore, to obtain a circular arc motion trajectory, it is necessary to determine x 90 , or set the radius R of the circular arc. For the principle of facilitating design calculations, let the radius R of the circular arc be known.

[0536] From Figure 55 it is easy to obtain:

[0537]

[0538] R is known;

[0539] then Ω = Υ + λ;

[0540] The first part of the straight line:

[0541] Given, (x0, y0), the slope tanγ, then the equation of the first part is:

[0542] tanγ(x - x0) = (y - y0)

[0543] The equation of the second straight line:

[0544] tanλ(x - x z ) = (y - y z )

[0545]

[0546] By solving the above system of equations simultaneously, an equation containing x 90 can be obtained

[0547]

[0548] Then

[0549] Substitute the expressions of a and Ω containing x 90 into to obtain the x 90 coordinate.

[0550] Similarly, given a, the coordinates (x2, y2) can be calculated.

[0551] According to the relationship between x and x0, y0, h, and θ in the previous text, the angle of this point can be determined.

[0552] (2.2.4) The fourth part - moving along a straight line

[0553] According to the (x determined in the third part90 , y 90 ) Coordinates, determine the angle of the straight line after 90°

[0554]

[0555] Given the coordinates of the end position, the straight line segment can be determined.

[0556] Draw a locus with a set radius R, see Figure 48 and Figure 49 the guiding locus line in. Using this locus as the center line locus of the first axis guiding groove can achieve the expected requirements.

[0557] In some embodiments of the present application, a method for designing the shapes of a guiding portion 50 and a guiding portion 60. Specifically as follows:

[0558] (1) Set the design conditions.

[0559] During the process of the door body 30 opening from 0 to 90°, the distance that the door body extends beyond the first side wall of the refrigerator is less than m = 1.5 mm, the compression amount of the door seal is less than n = 0.2 mm, when the door is opened to 90°, the door body retracts less than s = 5 mm relative to the first side wall, the maximum opening angle of the door body is 120°, and the movement is smooth and fluent. When closing the door, the distance from the right side wall of the door body to the wall is l = 2.2 mm, and the thickness of the door seal (dimension perpendicular to the back wall of the door) is d. Determine the geometric relationship between the key points of the first axis and the second axis and the opening angle.

[0560] (2) Design according to the set design conditions. The specific design method is as follows:

[0561] (2.1) Suggest the relationship of the relative coordinate system.

[0562] As Figures 56 - 59 shown, xoy is the basic coordinate system, the positive direction of the x-axis is to the left, the positive direction of the y-axis is downward, and the coordinates of the double axes (the first central axis and the second central axis) are (x1, y1)(x2, y2). x'o'y' is the door coordinate system, the positive direction of the x-axis is to the left, the positive direction of the y-axis is downward, and the coordinates of the lower left and upper right points of the guiding block on the door body are (x a ', y a ')(x b ', y b ').

[0563] Refer to Figure 56 , during the door opening process, the coordinates of the double axes need to be always within the coordinates of the guiding block and meet the design requirements. The rotation angle of the coordinate system x'o'y' relative to the basic coordinate system xoy is the rotation angle θ of the door. According to the rotation angle and the locus equation, calculate the coordinate points corresponding to the angle, convert them into the expression of the basic coordinates, and obtain the geometric relationship.

[0564] Plane coordinate transformation matrix:

[0565]

[0566] The coordinate transformation formulas in the following text are all derived from this formula.

[0567] (2.2) Determine the parameter range according to a specific angle.

[0568] (2.2.1) Position analysis when the door body 30 is in the closed state (opening angle is 0°).

[0569] According to Figure 56 it can be known that when the rotation angle is 0°, the x'o'y' door coordinate system is obtained by translating the xoy basic coordinate system. At this time, (x a ’, y a ’)(x b ’, y b ’) is expressed as (x a1 , y a1 )(x b1 , y b1 ) in the xoy basic coordinate.

[0570] x a ’ + l = x a1

[0571] y a ’ + d = y a1

[0572] x b ’ + l = x b1

[0573] y b ’ + d = y b1

[0574] x a1 <x1(x2) < x b1

[0575] y a1 <y1(y2) < y b1

[0576] (2.2.1) Position analysis when the opening angle of the door body 30 is 120°.

[0577] It is known that the refrigerator door rotates 120°, and the outer wall of the refrigerator door is tangent to the end of the receiving cabinet that defines its opening. See Figure 57 .

[0578] It is known that the first axis and the second axis need to fall within the (x a ’, y a ’)(x b ’, yb In (’), the door coordinate system is shifted left by a, shifted down by b, and rotated by 120°.

[0579] At this time, the relationship between b and a is:

[0580] b - hsinθ = -(h - a - acosθ)tanθ (θ = 120°)

[0581] b = hsinθ - [h - a(1 + cosθ)]tanθ

[0582] Then, when the door opens 120°, the geometric relationship between the door and the double axis is determined by a, and the value range of a can be obtained through coordinate transformation:

[0583] At this time (x a ’, y a ’)(x b ’, y b ) is expressed as (x a2 , y a2 )(x b2 , y b2 ) in the xoy basic coordinate system.

[0584] x a 'cosθ + y a 'sinθ + l + b = x a2

[0585] y a 'cosθ - x a 'sinθ + d + a = y a2

[0586] x b 'cosθ + y b 'sinθ + l + b = x b2

[0587] y b 'cosθ + x b 'sinθ + d + a = y b2

[0588] x a2 <x1(x2) < x b2

[0589] y a2 <y1(y2) < y b2

[0590] In the above formula, b can be expressed by a, and the value range of a can be determined according to the above inequality. Since the expression is too long, it will not be expanded here.

[0591] Meanwhile, if the value of a is determined, the value ranges of the coordinates of the first axis and the second axis can be obtained, thereby adjusting the positions of the first axis and the second axis.

[0592] (3) Geometric relationship of the door body when the first axis moves along the linear first guide line.

[0593] See Figure 57 As shown, it is known that during the first linear motion, the projection (x2', y2') of the first axis (x2, y2) in the x'o'y' door coordinate system of the refrigerator door moves along a straight line at an angle of γ and is tangent to the right side of the refrigerator door at m = 1.5 mm; the position of the tangent point between the trajectory straight line and the trajectory arc, the refrigerator door rotates θ = degrees. Then, as the door rotates, the variation relationship between a and b is:

[0594] a = door angle excess - door angle downward displacement

[0595] Door angle excess = c2 (see the aforementioned design method corresponding to Figures 53 - 55 )

[0596]

[0597]

[0598] b = hsinθ

[0599] According to the coordinate transformation principle, (x2', y2'):

[0600] x2' = x2cosθ + y2sinθ - b - l

[0601] y2' = y2cosθ - x2sinθ + a - d

[0602] According to the coordinate transformation rule, similarly, the projections of the first axis and the second axis (x1, y1) (x2, y2) in the door coordinate system x'o'y' at 0 degrees and 120° can be obtained. (See the dashed circle part in Figure 58 )

[0603] (4) Geometric relationship of the door body when the door body is opened to 90°.

[0604] As Figure 59 shown, at this time, the front wall of the refrigerator door is parallel to the side wall of the receiving cabinet, b = s + h, and the specific geometric relationship depends on the downward displacement a.

[0605]

[0606] The value range of a can be judged according to this formula.

[0607] In some embodiments of the present application, refer to Figures 60 to 65 , Figures 60 to 65Schematic partial views of the refrigerator when the door body 30 is in the closed state, when the door body 30 is opened to 30°, when the door body 30 is opened to 70°, when the door body 30 is opened to 80°, when the door body 30 is opened to 110°, and when the door body 30 is opened to 120°. As Figures 60 to 65 shown, there may be a third distance A3 between the first central axis P of the first shaft 41 and the second side edge N, that is, PN = A3.

[0608] And referring Figure 66 , Figure 66 is a schematic diagram of the change trend of the third distance A3 during the opening process of the door body 30. Among them, the abscissa is the opening angle of the door body 30 and the ordinate is the third distance A3. As Figure 66 shown, during the process of the door body 30 being opened from the closed state to the maximum angle G max , the third distance A3 may first decrease, then remain basically unchanged, and then increase.

[0609] Exemplarily, during the process of the door body 30 being opened from the closed state to the first opening angle δ1, the third distance A3 may decrease.

[0610] Exemplarily, the first opening angle δ1 may be greater than or equal to 32° and less than or equal to 42°. That is, δ1 ∈ [32°, 42°]. For example, the first opening angle δ1 may be 32°, 33°, 34°, 35°, 36°, 37°, 38°, 39°, 40°, 41°, or 42°.

[0611] Exemplarily, during the process of the door body 30 being opened from the closed state to the first opening angle δ1, the numerical change of the third distance A3 is within the first amplitude change rate t1 (%). The first amplitude change rate t1 may be the difference between the maximum value A 3amax and the minimum value A 3amin of the third distance during this opening process and the ratio of the average value of the third distance. That is:

[0612]

[0613] Exemplarily, the first amplitude change rate t1 may be greater than or equal to 19% and less than or equal to 29%. For example, the first amplitude change rate t1 may be 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, or 29%.

[0614] Take Figure 60 and Figure 61 as an example. During the process of the door body 30 being opened from the closed state to the first opening angle δ1, the opening angle It can be 30°. When the door body 30 is in the closed state, the third distance A3 can be greater than the third distance A3 when the door body 30 is opened to 30°. The third distance A3 gradually decreases. With such a setting, in the initial stage of opening the door body 30, the second side edge N of the door body 30 is located between the first axis 41 and the inner side wall of the storage cabinet 100, and the second side edge N can move in a direction close to the first axis 41, which helps the second side edge N to move inward and forward, thereby facilitating an increase in the distance between the second side edge N and the box body 10, so as to prevent the second side edge N from colliding with the box body 10 as much as possible, and can make the door seal 5 move away from the box body, which is beneficial to preventing the door seal 5 from being squeezed by the box body 10 and extending the service life of the door seal 5; and it is beneficial to prevent the first side edge W of the door body 30 from exceeding the side wall of the box body 10 and colliding with the inner side wall of the storage cabinet 100.

[0615] During the process of the door body 30 being opened from the first opening angle δ1 to the second opening angle δ2, the third distance A3 can be substantially unchanged.

[0616] Exemplarily, the second opening angle δ2 can be greater than or equal to 95° and less than or equal to 105°. That is, δ2 ∈ [95°, 105°]. For example, the second opening angle δ2 can be 95°, 96°, 97°, 98°, 99°, 100°, 101°, 102°, 103°, 104° or 105°.

[0617] It should be noted that the third distance A3 being substantially unchanged can mean that the value of the third distance A3 remains unchanged or is approximately unchanged during this section of the door opening process. Exemplarily, the third distance A3 being substantially unchanged can mean that the change in the value of the third distance A3 during this door opening process can be within the second amplitude change rate t2 (%). The second amplitude change rate t2 can be the difference between the maximum value A of the third distance and the minimum value A of the third distance during this section of the door opening process, and the ratio to the average value of the third distance. That is: 3bmax and the minimum value A of the third distance 3bmin difference and the average value of the third distance ratio. That is:

[0618]

[0619] Exemplarily, the second amplitude change rate t2 can be greater than or equal to 1.9% and less than or equal to 3.9%. For example, the second amplitude change rate t2 can be 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8% or 3.9%.

[0620] With Figure 62 and Figure 63For example, during the process of the door body 30 being opened from the first opening angle δ1 to the second opening angle δ2, the opening angle of the door body 30 can be 70° and 80° in sequence. When the door body 30 is opened to 70°, the third distance A3 can be approximately equal to the third distance A3 when the door body 30 is opened to 80°. The third distance A3 is basically unchanged. With such a setting, in the middle stage of opening the door body 30, the second side edge N can perform a fixed-axis rotation or an approximate fixed-axis rotation relative to the first axis 41, so that the movement amplitude of the side of the door body 30 away from the second side edge N can be increased, which is beneficial to increasing the opening range of the door body 30, providing a larger operating space for the user, and facilitating the user to pick up and place items in the storage room laterally in front of the pick-up and drop-off port when the door body 30 is in the open state.

[0621] During the process of the door body 30 being opened from the second opening angle δ2 to the third opening angle δ3, the third distance A3 can increase.

[0622] Exemplarily, the third opening angle δ3 can be greater than or equal to 115° and less than or equal to the maximum angle Gmax. That is, δ3 ∈ [115°, Gmax]. For example, the third opening angle δ3 can be 115°, 116°, 117°, 118°, 119°, or 120°.

[0623] Exemplarily, during the process of the door body 30 being opened from the second opening angle δ2 to the third opening angle δ3, the numerical change of the third distance A3 can be within the third amplitude change rate t3 (%). The third amplitude change rate t3 can be the difference between the maximum value A of the third distance and the minimum value A of the third distance during this opening process 3cmax and the average value of the third distance 3cmin ratio. That is:

[0624]

[0625] Exemplarily, the third amplitude change rate t3 can be greater than or equal to 12% and less than or equal to 22%. For example, the third amplitude change rate t3 can be 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, or 22%.

[0626] Take Figure 64 and Figure 65 as an example. During the process of the door body 30 being opened from the second opening angle δ2 to the third opening angle δ3, the opening angle of the door body 30 They can be 110° and 120° in sequence. The third distance A3 when the door body 30 is opened to 110° is less than the third distance A3 when the door body 30 is opened to 120°. The third distance A3 increases. When the door body 30 is opened to the second opening angle δ2, due to the large rotation of the door body 30, the second side edge N moves to the side of the first shaft 41 facing away from the storage cabinet 100. In the later stage of opening the door body 30, when the door body 30 is opened from the second opening angle δ2 to the third opening angle δ3, since the third distance A3 gradually increases, the second side edge N can be further moved in a direction away from the first shaft 41, that is, the second side edge N moves inward, which is beneficial to preventing the front wall 31 of the door body 30 from colliding with the side edge of the storage cabinet 100.

[0627] In some embodiments of the present application, referring to Figures 60 to 65 , there may be a fourth distance A4 between the second central axis Q of the second shaft 42 and the second side edge N, that is, QN = A4.

[0628] And referring to Figure 66 , Figure 66 is a schematic diagram of the change trend of the fourth distance A4 during the opening process of the door body. Among them, the abscissa is the opening angle of the door body 30 and the ordinate is the fourth distance A4. As Figure 66 shown, during the process of the door body 30 being opened from the closed state to the maximum angle Gmax, the fourth distance A4 can first decrease and then increase.

[0629] Exemplarily, during the process of the door body 30 being opened from the closed state to the fourth opening angle δ4, the fourth distance A4 can decrease.

[0630] Exemplarily, the fourth opening angle δ4 can be greater than or equal to 105° and less than or equal to 115°. That is, δ4 ∈ [105°, 115°]. For example, the fourth opening angle δ4 can be 105°, 106°, 107°, 108°, 109°, 110°, 111°, 112°, 113°, 114° or 115°.

[0631] Exemplarily, during the process of the door body 30 being opened from the closed state to the fourth opening angle δ4, the numerical change of the fourth distance A4 can be within the fourth amplitude change rate t4 (%). The fourth amplitude change rate t4 can be the difference between the maximum value A 4amax of the fourth distance and the minimum value A 4amin of the fourth distance during this opening process, divided by the average value of the fourth distance. That is:

[0632]

[0633] Exemplarily, the fourth rate of amplitude change t4 can be greater than or equal to 87% and less than or equal to 97%. For example, the fourth rate of amplitude change t4 can be 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96% or 97%.

[0634] Taking Figures 60 to 63 as an example, during the process of the door body 30 being opened from the closed state to the fourth opening angle δ4, the opening angle of the door body 30 can be successively 30°, 70° and 80°. The fourth distance A4 when the door body 30 is in the closed state can be greater than the fourth distance A4 when the door body 30 is opened to 30°. The fourth distance A4 when the door body 30 is opened to 30° can be greater than the fourth distance A4 when the door body 30 is opened to 70°. The fourth distance A4 when the door body 30 is opened to 70° can be greater than the fourth distance A4 when the door body 30 is opened to 80°. The fourth distance A4 gradually decreases. With such a setting, in the initial and middle stages of opening the door body 30, the second side edge N can move in a direction close to the second axis 42, which is beneficial for the second side edge N to move away from the box body 10, thereby facilitating the avoidance of collision between the second side edge N and the box body 10; and it is beneficial for the second side edge N to move inward to the side of the second axis 42 away from the storage cabinet 100, so as to prevent the first side edge W from exceeding the side wall of the box body 10 as much as possible, thereby facilitating the prevention of collision between the first side edge W and the inner side wall of the storage cabinet 100.

[0635] During the process of the door body 30 being opened from the fourth opening angle δ4 to the fifth opening angle δ5, the fourth distance A4 can increase.

[0636] Exemplarily, the fifth opening angle δ5 can be greater than or equal to 115° and less than or equal to the maximum angle Gmax. That is, δ5 ∈ [115°, Gmax]. For example, the fifth opening angle δ5 can be 115°, 116°, 117°, 118°, 119° or 120°.

[0637] Exemplarily, during the process of the door body 30 being opened from the fourth opening angle δ4 to the fifth opening angle δ5, the numerical change of the fourth distance A4 can be within the fifth rate of amplitude change t5 (%). The fifth rate of amplitude change t5 can be the difference between the maximum value A 4bmax of the fourth distance and the minimum value A 4bmin of the fourth distance during this opening process, and the ratio to the average value of the fourth distance. That is:

[0638]

[0639] Exemplarily, the fifth rate of amplitude change t5 may be greater than or equal to 5% and less than or equal to 15%. For example, the fifth rate of amplitude change t5 may be 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14% or 15%.

[0640] Take Figure 64 and Figure 65 as an example. During the process of the door body 30 being opened from the fourth angle δ4 to the fifth angle δ5, the opening angle of the door body 30 may be 110° and 120° in sequence. The fourth distance A4 when the door body 30 is opened to 110° is less than the fourth distance A4 when the door body 30 is opened to 120°. The fourth distance A4 gradually increases. With such a setting, in the later stage of opening the door body 30, the second side edge N on the side of the second axis 42 away from the storage cabinet 100 can move in a direction away from the second axis 42, that is, the second side edge N moves inwards, which is beneficial to preventing the front wall 31 of the door body 30 from colliding with the side edge of the storage cabinet 100.

[0641] In some embodiments of the present application, the second opening angle δ2 may be less than the fourth opening angle δ4. That is to say, the third distance A3 may start to increase prior to the fourth distance A4.

[0642] In some embodiments of the present application, referring to Figure 67 , Figure 67 is a schematic diagram of the change trend of the ratio of the fourth distance A4 to the third distance A3 during the opening process of the door body 30. Wherein, the abscissa is the opening angle of the door body 30 and the ordinate is the ratio of the fourth distance A4 to the third distance A3. As Figure 67 shown, during the process of the door body 3 from the closed state to being opened to the maximum angle Gmax, the ratio of the fourth distance A4 to the third distance A3 may be basically unchanged first, then decrease, and then be basically unchanged.

[0643] Exemplarily, during the process of the door body 30 being opened from the closed state to the sixth opening angle δ6, the ratio of the fourth distance A4 to the third distance A3 may be basically unchanged.

[0644] Exemplarily, the sixth opening angle δ6 may be greater than or equal to 19° and less than or equal to 29°. That is to say, δ6 ∈ [19°, 29°]. For example, the sixth opening angle δ6 may be 19°, 20°, 21°, 22°, 23°, 24°, 25°, 26°, 27°, 28° or 29°.

[0645] It should be noted that the ratio of the fourth distance A4 to the third distance A3 being substantially constant may mean that the value of the ratio of the fourth distance A4 to the third distance A3 remains unchanged or is approximately unchanged during this opening process of the door. Exemplarily, the ratio of the fourth distance A4 to the third distance A3 being substantially constant may mean that the change in the value of the ratio of the fourth distance A4 to the third distance A3 during this opening process of the door can be within the sixth amplitude change rate t6 (%). The sixth amplitude change rate t6 can be the difference between the maximum value A of the ratio of the fourth distance to the third distance and the minimum value A of the ratio of the fourth distance to the third distance during this opening process of the door, divided by the average value of the ratio of the fourth distance to the third distance. That is: 4 / 3amax and the minimum value A of the ratio of the fourth distance to the third distance 4 / 3amin divided by the average value of the ratio of the fourth distance to the third distance That is:

[0646]

[0647] Exemplarily, the sixth amplitude change rate t6 can be greater than or equal to 1.1% and less than or equal to 3.1%. For example, the sixth amplitude change rate t6 can be 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0% or 3.1%.

[0648] Taking Figure 60 as an example, during the process of the door body 30 being opened from the closed state to the sixth opening angle δ6, the ratio of the fourth distance A4 to the third distance A3 is substantially constant. In the initial stage of opening the door body 30, the second side edge N can approach the first shaft 41 and the second shaft 42 at substantially the same moving speed, which is beneficial to ensuring that the second side edge N moves forward, so as to facilitate the second side edge N and the door seal 5 to quickly leave the box body 10, and as much as possible prevent the door seal 5 from being squeezed, which helps to extend the service life of the door seal 5.

[0649] During the process of the door body 30 being opened from the sixth opening angle δ6 to the seventh opening angle δ7, the ratio of the fourth distance A4 to the third distance A3 can decrease.

[0650] Exemplarily, the seventh opening angle δ7 can be greater than or equal to 103° and less than or equal to 113°. That is, δ7 ∈ [103°, 113°]. For example, the seventh opening angle δ7 can be 103°, 104°, 105°, 106°, 107°, 108°, 109°, 110°, 111°, 112° or 113°.

[0651] Exemplarily, during the process of the door body 30 opening from the sixth opening angle δ6 to the seventh opening angle δ7, the numerical change of the ratio of the fourth distance A4 to the third distance A3 can be within the seventh amplitude change rate t7 (%). The seventh amplitude change rate t7 can be the difference between the maximum value A of the ratio of the fourth distance to the third distance and the minimum value A of the ratio of the fourth distance to the third distance during this opening process, divided by the average value of the ratio of the fourth distance to the third distance. That is: 4 / 3bmax and the minimum value A of the ratio of the fourth distance to the third distance 4 / 3bmin the difference between them and the average value of the ratio of the fourth distance to the third distance the ratio. That is:

[0652]

[0653] Exemplarily, the seventh amplitude change rate t7 can be greater than or equal to 74% and less than or equal to 84%. For example, the seventh amplitude change rate t7 can be 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83% or 84%.

[0654] Taking Figure 61 、 Figure 62 and Figure 63 as an example, during the process of the door body opening from the sixth opening angle δ6 to the seventh opening angle δ7, the opening angle of the door body 30 can be 30°, 70° and 80° in sequence. In the middle stage of opening the door body 30, the ratio of the fourth distance A4 to the third distance A3 gradually decreases, which can make the second side edge N approach the second axis 42 more quickly compared to the first axis 41, facilitating an increase in the movement amplitude of the side of the door body 30 away from the second side edge N, and facilitating an increase in the opening range of the door body 30, providing a larger operating space for the user, and facilitating the user to pick up and place items in the storage room laterally in front of the pick-up and drop-off opening when the door body 30 is in the open state.

[0655] During the process of the door body 30 opening from the seventh opening angle δ7 to the eighth opening angle δ8, the ratio of the fourth distance A4 to the third distance A3 can be basically unchanged.

[0656] Exemplarily, the eighth opening angle δ8 can be greater than or equal to 115° and less than or equal to the maximum angle Gmax. That is, δ8 ∈ [115°, Gmax]. For example, the eighth opening angle δ8 can be 115°, 116°, 117°, 118°, 119° or 120°.

[0657] It should be noted that the ratio of the fourth distance A4 to the third distance A3 being substantially constant may mean that the value of the ratio of the fourth distance A4 to the third distance A3 remains unchanged or is approximately unchanged during this opening process of the door. In other words, the ratio of the fourth distance A4 to the third distance A3 being substantially constant may mean that the change in the value of the ratio of the fourth distance A4 to the third distance A3 during this opening process is within the eighth amplitude change rate t8 (%). The eighth amplitude change rate t8 can be the difference between the maximum value A of the ratio of the fourth distance to the third distance and the minimum value A of the ratio of the fourth distance to the third distance during this opening process of the door, divided by the average value of the ratio of the fourth distance to the third distance. That is: 4 / 3cmax and the minimum value A of the ratio of the fourth distance to the third distance 4 / 3cmin divided by the average value of the ratio of the fourth distance to the third distance is the ratio. That is:

[0658]

[0659] Exemplarily, the eighth amplitude change rate t8 can be greater than or equal to 1.6% and less than or equal to 3.6%. For example, the eighth amplitude change rate t8 can be 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5% or 3.6%.

[0660] Taking Figure 65 as an example, during the process of the door body 30 being opened from the seventh opening angle δ7 to the eighth opening angle δ8, that is, in the later stage of opening the door body 30, the ratio of the fourth distance A4 to the third distance A3 being substantially constant can enable the second side edge N to approach the first axis 41 and the second axis 42 at substantially the same moving speed, which is beneficial for the second side edge N to move forward, and thus is beneficial for preventing the front wall 31 of the door body 30 from colliding with the receiving cabinet 100.

[0661] In some embodiments of the present application, referring to Figures 60 to 65 , there may be a fifth distance A5 between the first central axis P of the first axis 41 and the first side edge W, that is, PW = A5.

[0662] And referring to Figure 68 , Figure 68 is a schematic diagram of the change trend of the fifth distance A5 during the opening process of the door body 30. Among them, the abscissa is the opening angle of the door body 30 and the ordinate is the fifth distance A5. As Figure 68 shown, during the process of the door body 30 being opened from the closed state to the maximum angle Gmax, the fifth distance A5 can first decrease, then remain substantially unchanged, and then decrease.

[0663] Exemplarily, during the process of the door body 30 being opened from the closed state to the ninth opening angle δ9, the fifth distance A5 can decrease.

[0664] Exemplarily, the ninth door opening angle δ9 can be greater than or equal to 47° and less than or equal to 57°. That is, δ9 ∈ [47°, 57°]. For example, the ninth door opening angle δ9 can be 47°, 48°, 49°, 50°, 51°, 52°, 53°, 54°, 55°, 56° or 57°.

[0665] Exemplarily, during the process of the door body 30 opening from the closed state to the ninth door opening angle δ9, the numerical change of the fifth distance A5 is within the ninth amplitude change rate t9. The ninth amplitude change rate t9 can be the difference between the maximum value A of the fifth distance during this door opening process 5amax and the minimum value A of the fifth distance 5amin divided by the average value of the fifth distance That is:

[0666]

[0667] Exemplarily, the ninth amplitude change rate t9 can be greater than or equal to 18% and less than or equal to 28%. For example, the ninth amplitude change rate t9 can be 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27% or 28%.

[0668] Taking Figure 60 and Figure 61 as an example, during the process of the door body 30 opening from the closed state to the ninth door opening angle δ9, the opening angle of the door body 30 can be 30°. The fifth distance A5 when the door body 30 is in the closed state can be greater than the fifth distance A5 when the door body 30 is opened to 30°. The fifth distance A5 decreases. With such a setting, in the initial stage of opening the door body 30, the first side edge W of the door body 30 can move towards the direction close to the first axis 41, which is beneficial to preventing the first side edge W from exceeding the side of the box body 10, and thus beneficial to preventing the first side edge W from colliding with the inner side wall of the storage cabinet 100.

[0669] During the process of the door body 30 opening from the ninth door opening angle δ9 to the tenth door opening angle δ 10 , the fifth distance A5 can be basically unchanged.

[0670] Exemplarily, the tenth door opening angle δ 10 can be greater than or equal to 85° and less than or equal to 95°. That is, δ 10 ∈ [85°, 95°]. For example, the tenth door opening angle δ 10 can be 85°, 86°, 87°, 88°, 89°, 90°, 91°, 92°, 93°, 94° or 95°.

[0671] It should be noted that the fifth distance A5 being substantially unchanged may mean that the value of the fifth distance A5 remains unchanged or is approximately unchanged during the door opening process. In other words, the fifth distance A5 being substantially unchanged may mean that the change in the value of the fifth distance A5 during the door opening process is within the tenth amplitude change rate t 10 (%). The tenth amplitude change rate t 10 can be the ratio of the difference between the maximum value A 5bmax and the minimum value A 5bmin of the fifth distance during the door opening process to the average value of the fifth distance . That is:

[0672]

[0673] Exemplarily, the tenth amplitude change rate t 10 can be greater than or equal to 0 and less than or equal to 0.02%. For example, the tenth amplitude change rate t 10 can be 0, 0.001%, 0.002%, 0.003%, 0.004%, 0.005%, 0.006%, 0.007%, 0.008%, 0.009%, 0.010%, 0.011%, 0.012%, 0.013%, 0.014%, 0.015%, 0.016%, 0.017%, 0.018%, 0.019% or 0.02%.

[0674] Taking Figure 62 and Figure 63 as an example, during the process of the door body 30 being opened from the ninth opening angle δ9 to the tenth opening angle δ 10 , the opening angle of the door body 30 can be 70° and 80° in sequence. The fifth distance A5 when the door body 30 is opened to 70° can be approximately equal to the fifth distance A5 when the door body 30 is opened to 80°. The fifth distance A5 is substantially unchanged. With such a setting, in the middle stage of opening the door body 30, the first side edge W can perform a fixed-axis rotation or an approximate fixed-axis rotation relative to the first axis 41, thereby increasing the movement amplitude of the side of the door body 30 away from the first side edge W, which is beneficial to increasing the opening range of the door body 30 and providing a larger operating space for the user, facilitating the user to take and place items in the storage room laterally in front of the access opening when the door body 30 is in the open state.

[0675] During the process of the door body 30 being opened from the tenth opening angle δ 10 to the eleventh opening angle δ 11 , the fifth distance A5 can decrease.

[0676] Exemplarily, the eleventh opening angle δ 11 can be greater than or equal to 115° and less than or equal to the maximum angle Gmax. That is, δ 11∈[115°, Gmax]. For example, the eleventh opening angle δ 11 can be 115°, 116°, 117°, 118°, 119° or 120°.

[0677] Exemplarily, the door body 30 moves from the tenth opening angle δ 10 to the eleventh opening angle δ 11 During this process, the numerical change of the fifth distance A5 can be within the eleventh rate of change of amplitude t 11 (%). The eleventh rate of change of amplitude t 11 can be the ratio of the difference between the maximum value A 5cmax and the minimum value A 5cmin of the fifth distance during this opening process to the average value of the fifth distance . That is:

[0678]

[0679] Exemplarily, the eleventh rate of change of amplitude t 11 can be greater than or equal to 32% and less than or equal to 42%. For example, the eleventh rate of change of amplitude t 11 can be 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41% or 42%.

[0680] Take Figure 64 and Figure 65 as an example. During the process that the door body 30 moves from the tenth opening angle δ 10 to the eleventh opening angle δ 11 , the opening angle of the door body 30 can be 110° and 120° in sequence. The fifth distance A5 when the door body 30 is opened to 110° can be greater than the fifth distance A5 when the door body 30 is opened to 120°. The fifth distance A5 decreases. With such a setting, in the later stage of opening the door body 30, the first side edge W is located between the first axis 41 and the storage cabinet 100. The decrease of the fifth distance A5 enables the first side edge W to move towards the direction close to the first axis 41, that is, enables the second side edge N to move inwards, which is beneficial to preventing the front wall 31 of the door body 30 from colliding with the side edge of the storage cabinet 100.

[0681] In some embodiments of the present application, referring to Figures 60 to 65 , there may be a sixth distance A6 between the second central axis Q of the second axis 42 and the first side edge W, that is, QW = A6.

[0682] And referring to Figure 68 , Figure 68 is a schematic diagram of the change trend of the sixth distance A6 during the opening process of the door body 30. Among them, the abscissa is the opening angle of the door body 30 The vertical coordinate is the sixth distance A6. As Figure 68 shown, during the process of the door body 30 opening from the closed state to the maximum angle Gmax, the sixth distance A6 can first decrease, then remain basically unchanged, then increase, and then decrease.

[0683] Exemplarily, during the process of the door body 30 opening from the closed state to the twelfth opening angle δ 12 , the sixth distance A6 can decrease.

[0684] Exemplarily, the twelfth opening angle δ 12 can be greater than or equal to 34° and less than or equal to 44°. That is to say, δ 12 ∈[34°, 44°]. For example, the twelfth opening angle δ 12 can be 34°, 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43° or 44°.

[0685] Exemplarily, during the process of the door body 30 opening from the closed state to the twelfth opening angle δ 12 , the numerical change of the sixth distance A6 can be within the twelfth amplitude change rate t 12 (%). The twelfth amplitude change rate t 12 can be the ratio of the difference between the maximum value A 6amax and the minimum value A 6amin of the sixth distance during this opening process to the average value of the sixth distance . That is:

[0686]

[0687] Exemplarily, the twelfth amplitude change rate t 12 can be greater than or equal to 4.9% and less than or equal to 6.9%. For example, the twelfth amplitude change rate t 12 can be 4.9%, 5.0%, 5.1%, 5.2%, 5.3%, 5.4%, 5.5%, 5.6%, 5.7%, 5.8%, 5.9%, 6.0%, 6.1%, 6.2%, 6.3%, 6.4%, 6.5%, 6.6%, 6.7%, 6.8% or 6.9%.

[0688] Taking Figure 60 and Figure 61 as an example, during the process of the door body 30 opening from the closed state to the twelfth opening angle δ 12 , the opening angle of the door body 30 It can be 30°. The sixth distance A6 when the door body 30 is in the closed state can be greater than the sixth distance A6 when the door body 30 is opened to 30°. The sixth distance A6 decreases. With such a setting, in the initial stage of opening the door body 30, the first side edge W can move in a direction closer to the second axis 42, which is beneficial for the first side edge W to move inward and forward, and can prevent the first side edge W from colliding with the inner wall of the storage cabinet 100 as much as possible.

[0689] During the process when the door body 30 is opened from the twelve-opening angle δ 12 to the thirteen-opening angle δ 13 the sixth distance A6 can remain substantially unchanged.

[0690] Exemplarily, the thirteen-opening angle δ 13 can be greater than or equal to 45°, and less than or equal to 55°. That is to say, δ 13 ∈[45°, 55°]. For example, the thirteen-opening angle δ 13 can be 45°, 46°, 47°, 48°, 49°, 50°, 51°, 52°, 53°, 54° or 55°.

[0691] It should be noted that the sixth distance A6 remaining substantially unchanged can mean that the value of the sixth distance A6 remains unchanged or approximately unchanged during this opening process. In other words, the sixth distance A6 remaining substantially unchanged can mean that the change in the value of the sixth distance A6 during this opening process is less than or equal to the thirteenth amplitude change rate t 13 . The thirteenth amplitude change rate t 13 can be the ratio of the difference between the maximum value A of the sixth distance and the minimum value A of the sixth distance to the average value of the sixth distance during this opening process 6bmax during this opening process. That is: 6bmin

[0692]

[0693] Exemplarily, the thirteenth amplitude change rate t 13 can be greater than or equal to 0.05%, and less than or equal to 0.25%. For example, the thirteenth amplitude change rate t 13 can be 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.10%, 0.11%, 0.12%, 0.13%, 0.14%, 0.15%, 0.16%, 0.17%, 0.18%, 0.19%, 0.20%, 0.21%, 0.22%, 0.23%, 0.24% or 0.25%.

[0694] ​​In the process from the initial stage to the middle stage of opening the door body 30, the sixth distance A6 remains basically unchanged, which can keep the distance between the first side edge W and the second axis 42 basically unchanged, facilitating the prevention of the first side edge W from exceeding the side wall of the box body 10, and thus helping to prevent the first side edge W from colliding with the inner side wall of the storage cabinet 100.

[0695] The door body 30 rotates from the thirteenth opening angle δ 13 to the fourteenth opening angle δ 14 During this process, the sixth distance A6 can increase.

[0696] Exemplarily, the fourteenth opening angle δ 14 can be greater than or equal to 75° and less than or equal to 85°. That is to say, δ 14 ∈[75°, 85°]. For example, the fourteenth opening angle δ 14 can be 75°, 76°, 77°, 78°, 79°, 80°, 81°, 82°, 83°, 84° or 85°.

[0697] Exemplarily, when the door body 30 rotates from the thirteenth opening angle δ 13 to the fourteenth opening angle δ 14 During this process, the numerical change of the sixth distance A6 can be within the fourteenth amplitude change rate t 14 (%). The fourteenth amplitude change rate t 14 can be the ratio of the difference between the maximum value A 6cmax and the minimum value A 6cmin of the sixth distance during this opening process to the average value of the sixth distance That is:

[0698]

[0699] Exemplarily, the fourteenth amplitude change rate t 14 can be greater than or equal to 2.0% and less than or equal to 4.0%. For example, the fourteenth amplitude change rate t 14 can be 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9% or 4.0%.

[0700] Taking Figure 62 and Figure 63 as an example, when the door body 30 rotates from the thirteenth opening angle δ 13 to the fourteenth opening angle δ 14 During this process, the opening angle of the door body 30 They can be 70° and 80° in sequence. The sixth distance A6 when the door body 30 is opened to 70° can be smaller than the sixth distance A6 when the door body 30 is opened to 80°. The sixth distance A6 increases. With such a setting, in the middle stage of opening the door body 30, the first side edge W moves to between the second axis 42 and the box body 10. The gradually increasing sixth distance A6 can make the first side edge W move slightly away from the second axis 42, which is beneficial to preventing the second side edge N and the door seal 5 from excessively blocking the access opening on the premise of ensuring that the first side edge W does not collide with the inner side wall of the storage cabinet 100, so as to facilitate the user to take and place items in the storage room.

[0701] During the process when the door body 30 is opened from the fourteenth opening angle δ 14 to the fifteenth opening angle δ 15 the sixth distance A6 can decrease.

[0702] Exemplarily, the fifteenth opening angle δ 15 can be greater than or equal to 115°, and less than or equal to the maximum angle Gmax. That is to say, δ 15 ∈[115°, Gmax]. For example, the fifteenth opening angle δ 15 can be 115°, 116°, 117°, 118°, 119° or 120°.

[0703] Exemplarily, during the process when the door body 30 is opened from the fourteenth opening angle δ 14 to the fifteenth opening angle δ 15 the numerical change of the sixth distance A6 can be within the fifteenth amplitude change rate t 15 (%). The fifteenth amplitude change rate t 15 can be the ratio of the difference between the maximum value A of the sixth distance and the minimum value A of the sixth distance to the average value of the sixth distance 6dmax during this opening process. That is: 6dmin

[0704]

[0705] Exemplarily, the fifteenth amplitude change rate t 15 can be greater than or equal to 25%, and less than or equal to 35%. For example, the fifteenth amplitude change rate t 15 can be 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34% or 35%.

[0706] Taking Figure 64 and Figure 65 as an example, during the process when the door body 30 is opened from the fourteenth opening angle δ 14 to the fifteenth opening angle δ 15 the opening angle of the door body 30​​ They can be 110° and 120° in sequence. The sixth distance A6 when the door body 30 is opened to 110° can be greater than the sixth distance A6 when the door body 30 is opened to 120°. The sixth distance A6 decreases. With such a setting, in the later stage of opening the door body 30, the first side edge W can move in a direction closer to the second axis 42, which is beneficial for the first side edge W to move inward and forward, and can prevent the front wall 31 of the door body 30 from colliding with the side edge of the accommodation cabinet 100 as much as possible.

[0707] In some embodiments of the present application, referring to Figure 69 , Figure 69 is a schematic diagram of the change trend of the ratio of the sixth distance A6 to the fifth distance A5 during the opening process of the door body 30. Among them, the abscissa is the opening angle of the door body 30 and the ordinate is the ratio of the sixth distance A6 to the fifth distance A5. As Figure 69 shown, during the process of the door body 30 being opened from the closed state to the maximum angle Gmax, the ratio of the sixth distance A6 to the fifth distance A5 can first increase, then remain basically unchanged, and then increase.

[0708] Exemplarily, during the process of the door body 30 being opened from the closed state to the sixteenth opening angle δ 16 the ratio of the sixth distance A6 to the fifth distance A5 can increase.

[0709] Exemplarily, the sixteenth opening angle δ 16 can be greater than or equal to 61° and less than or equal to 71°. That is, δ 15 ∈[61°, 71°]. For example, the sixteenth opening angle δ 16 can be 61°, 62°, 63°, 64°, 65°, 66°, 67°, 68°, 69°, 70° or 71°.

[0710] Exemplarily, during the process of the door body 30 being opened from the closed state to the sixteenth opening angle δ 16 the numerical change of the ratio of the sixth distance A6 to the fifth distance A5 can be within the sixteenth amplitude change rate t 16 (%). The sixteenth amplitude change rate t 16 can be the ratio of the difference between the maximum value A 6 / 5amax of the ratio of the sixth distance to the fifth distance and the minimum value A 6 / 5amin of the ratio of the sixth distance to the fifth distance to the average value of the ratio of the sixth distance to the fifth distance . That is:

[0711]

[0712] Exemplarily, the sixteenth amplitude change rate t 16may be greater than or equal to 18% and less than or equal to 28%. For example, the sixteenth rate of change t 16 may be 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27% or 28%.

[0713] With Figure 60 and Figure 61 as an example, during the process that the door body 30 is opened from the closed state to the sixteenth door opening angle δ 16 of the door body 30, the opening angle may be 30°. At the initial stage of opening the door body 30, the ratio of the sixth distance A6 to the fifth distance A5 gradually increases, so that the first side edge W can approach the first axis 41 more quickly than the second axis 42 at the initial stage of opening the door body 30, which is beneficial to moving the first side edge W inward, thereby helping to prevent the first side edge W from colliding with the inner wall of the receiving cabinet 100.

[0714] During the process that the door body 30 is opened from the sixteenth door opening angle δ 16 to the seventeenth door opening angle δ 17 the ratio of the sixth distance A6 to the fifth distance A5 may remain substantially unchanged.

[0715] Exemplarily, the seventeenth door opening angle δ 17 may be greater than or equal to 88° and less than or equal to 98°. That is to say, δ 16 ∈[88°, 98°]. For example, the seventeenth door opening angle δ 17 may be 88°, 89°, 90°, 91°, 92°, 93°, 94°, 95°, 96°, 97° or 98°.

[0716] It should be noted that the ratio of the sixth distance A6 to the fifth distance A5 remaining substantially unchanged may mean that the ratio of the sixth distance A6 to the fifth distance A5 remains unchanged or approximately unchanged during this door opening process. Exemplarily, the ratio of the sixth distance A6 to the fifth distance A5 remaining substantially unchanged may mean that the numerical change of the ratio of the sixth distance A6 to the fifth distance A5 may be within the seventeenth rate of change t 17 (%). The seventeenth rate of change t 17 may be the difference between the maximum value A 6 / 5bmax of the ratio of the sixth distance to the fifth distance and the minimum value A 6 / 5bmin of the ratio of the sixth distance to the fifth distance divided by the average value of the ratio of the sixth distance to the fifth distance. That is:

[0717]

[0718] Exemplarily, the seventeenth rate of change t 17can be greater than or equal to 0 and less than or equal to 1.6%. For example, the seventeenth rate of change t 17 can be 0, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5% or 1.6%.

[0719] With Figure 62 and Figure 63 as an example, during the process of the door body 30 opening from the sixteenth opening angle δ 16 to the seventeenth opening angle δ 17 , the opening angle of the door body 30 can be 70° and 80° in sequence. In the middle stage of opening the door body 30, the ratio of the sixth distance A6 to the fifth distance A5 remains basically unchanged, which can enable the first side edge W to approach the first shaft 41 and the second shaft 42 at basically the same moving speed. This is beneficial to making the first side edge W move as much as possible towards the inside on the basis of ensuring that there is a sufficient large movement amplitude on the side of the door body 30 away from the first side edge W, so as to prevent the first side edge W from colliding with the inner wall of the storage cabinet 100.

[0720] During the process of the door body 30 opening from the seventeenth opening angle δ 17 to the eighteenth opening angle δ 18 , the ratio of the sixth distance A6 to the fifth distance A5 can increase.

[0721] Exemplarily, the eighteenth opening angle δ 18 can be greater than or equal to 115° and less than or equal to the maximum angle Gmax. That is to say, δ 18 ∈[115°, Gmax]. For example, the eighteenth opening angle δ 18 can be 115°, 116°, 117°, 118°, 119° or 120°.

[0722] Exemplarily, during the process of the door body 30 opening from the seventeenth opening angle δ 17 to the eighteenth opening angle δ 18 , the numerical change of the ratio of the sixth distance A6 to the fifth distance A5 can be within the eighteenth rate of change t 18 (%). The eighteenth rate of change t 18 can be the ratio of the difference between the maximum value A 6 / 5cmax of the ratio of the sixth distance to the fifth distance and the minimum value A 6 / 5cmin of the ratio of the sixth distance to the fifth distance during this opening process to the average value of the ratio of the sixth distance to the fifth distance. That is:

[0723]

[0724] Exemplarily, the eighteenth rate of amplitude change t 18 can be greater than or equal to 10% and less than or equal to 20%. For example, the eighteenth rate of amplitude change t 18 can be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19% or 20%.

[0725] Taking Figure 64 and Figure 65 as an example, when the door body 30 is opened from the seventeenth door opening angle δ 17 to the eighteenth door opening angle δ 18 during the process, the opening angle of the door body 30 can be 110° and 120°. The ratio of the sixth distance A6 to the fifth distance A5 increases, so that the first side edge W can approach the second axis 42 more quickly than the first axis 41 in the later stage of opening the door body 30, which is beneficial to making the first side edge W move inward and forward, and can effectively prevent the front wall 31 of the door body 30 from colliding with the side edge of the storage cabinet 100.

[0726] In some embodiments of the present application, referring to Figures 60 to 65 , there may be a seventh distance A7 between the first central axis P of the first axis 41 and the door side wall 32. The seventh distance A7 can be the distance between the first central axis P and the door side wall 32 in the normal direction of the door side wall 32.

[0727] And referring to Figure 70 , Figure 70 is a schematic diagram of the change trend of the seventh distance A7 during the opening process of the door body 30. Among them, the abscissa is the opening angle of the door body 30 and the ordinate is the seventh distance A7. As Figure 70 shown, during the process of the door body 30 being opened from the closed state to the maximum angle Gmax, the seventh distance A7 can first decrease, then remain basically unchanged, and then decrease.

[0728] Exemplarily, during the process of the door body 30 being opened from the closed state to the nineteenth door opening angle δ 19 , the seventh distance A7 can decrease.

[0729] Exemplarily, the nineteenth door opening angle δ 19 can be greater than or equal to 50° and less than or equal to 60°. That is to say, δ 19 ∈[50°, 60°]. For example, the nineteenth door opening angle δ 19 can be 50°, 51°, 52°, 53°, 54°, 55°, 56°, 57°, 58°, 59° or 60°.

[0730] Exemplarily, when the door body 30 is opened from the closed state to the nineteenth door opening angle δ19 During the process, the numerical change of the seventh distance A7 can be within the nineteenth amplitude change rate t 19 (%). The nineteenth amplitude change rate t 19 can be the difference between the maximum value A of the seventh distance and the minimum value A of the seventh distance 7amax during this door-opening process, divided by the average value of the seventh distance 7amin . That is:

[0731]

[0732] Exemplarily, the nineteenth amplitude change rate t 19 can be greater than or equal to 57% and less than or equal to 67%. For example, the nineteenth amplitude change rate t 19 can be 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64%, 65%, 66% or 67%.

[0733] Taking Figure 60 and Figure 61 as an example, when the door body 30 is opened from the closed state to the nineteenth opening angle δ 19 , the opening angle of the door body 30 can be 30°. The seventh distance A7 when the door body 30 is in the closed state can be greater than the seventh distance A7 when the door body 30 is opened to 30°. The seventh distance A7 decreases. In the initial stage of opening the door body 30, since the seventh distance A7 gradually decreases, the door side wall 32 can move towards the direction close to the first axis 41, which is beneficial for the door body 30 to move inwards or forwards. When the door body 30 moves forwards, the distance between the second side edge N and the box body 10 can be increased, which is beneficial for preventing the first side edge W from colliding with the box body 10. When the door body 30 moves inwards, it can prevent the first side edge W from exceeding the side wall of the box body 10 as much as possible, which is beneficial for preventing the first side edge W from colliding with the inner side wall of the storage cabinet 100.

[0734] When the door body 30 is opened from the nineteenth opening angle δ 19 to the twentieth opening angle δ 20 , the seventh distance A7 can remain basically unchanged.

[0735] Exemplarily, the twentieth opening angle δ 20 can be greater than or equal to 85° and less than or equal to 95°. That is to say, δ 20 ∈[85°, 95°]. For example, the twentieth opening angle δ 20 can be 85°, 86°, 87°, 88°, 89°, 90°, 91°, 92°, 93°, 94° or 95°.

[0736] ​It should be noted that the seventh distance A7 remaining substantially unchanged may mean that the seventh distance A7 remains unchanged or approximately unchanged during this stage of door opening. Exemplarily, the seventh distance A7 remaining substantially unchanged may mean that the numerical change of the seventh distance A7 may be within the twentieth amplitude change rate t 20 (%). The twentieth amplitude change rate t 20 may be the ratio of the difference between the maximum value A 7bmax and the minimum value A 7bmin of the seventh distance during this stage of door opening to the average value of the seventh distance . That is:

[0737]

[0738] Exemplarily, the twentieth door opening angle δ 20 may be greater than or equal to 0 and less than or equal to 1.8%. For example, the twentieth door opening angle δ 20 may be 0, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7% or 1.8%.

[0739] Taking Figure 62 and Figure 63 as an example, during the process of opening from the nineteenth door opening angle δ 19 to the twentieth door opening angle δ 20 , the opening angle of the door body 30 may be 70° or 80° in sequence. The seventh distance A7 when the door body 30 is opened to 70° may be approximately equal to the seventh distance A7 when the door body 30 is opened to 80°. The seventh distance A7 remains substantially unchanged. In the middle stage of opening the door body 30, the seventh distance A7 remaining substantially unchanged can enable the door side wall 32 to rotate or approximately rotate about a fixed axis relative to the first axis 41, thereby increasing the movement amplitude of the side of the door body 30 away from the door side wall 32, which is beneficial to increasing the opening range of the door body 30 to provide a larger operating space for the user, facilitating the user to take and place items in the storage chamber laterally in front of the access opening when the door body 30 is in the open state.

[0740] During the process of the door body 30 opening from the twentieth door opening angle δ 20 to the twenty - first door opening angle δ 21 , the seventh distance A7 may decrease.

[0741] Exemplarily, the twenty - first door opening angle δ 21 may be greater than or equal to 115° and less than or equal to the maximum angle Gmax. That is, δ 20 ∈[115°, Gmax]. For example, the twenty - first door opening angle δ 21It can be 115°, 116°, 117°, 118°, 119° or 120°.

[0742] Exemplarily, the door body 30 opens from the twentieth opening angle δ 20 to the twenty-first opening angle δ 21 During this process, the numerical change of the seventh distance A7 can be within the twenty-first amplitude change rate t 21 (%). The twenty-first amplitude change rate t 21 can be the difference between the maximum value A 7cmax and the minimum value A 7cmin of the seventh distance during this opening process, divided by the average value of the seventh distance That is:

[0743]

[0744] Exemplarily, the twenty-first amplitude change rate t 21 can be greater than or equal to 38% and less than or equal to 48%. For example, the twenty-first amplitude change rate t 21 can be 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47% or 48%.

[0745] Taking Figure 64 and Figure 65 as an example, the door body 30 opens from the twentieth opening angle δ 20 to the twenty-first opening angle δ 21 During this process, the opening angle of the door body 30 can be 110° and 120° in sequence. The seventh distance A7 when the door body 30 is opened to 110° can be greater than the seventh distance A7 when the door body 30 is opened to 120°. The seventh distance A7 decreases. In the later stage of the opening of the door body 30, since the seventh distance A7 gradually decreases, the door side wall 32 can move towards the direction close to the first axis 41, which is beneficial for the door body 30 to move forward, so as to increase the distance between the front wall 31 of the door and the side edge of the receiving cabinet 100 as much as possible, thereby preventing the front wall 31 of the door from colliding with the side edge of the receiving cabinet 100.

[0746] In some embodiments of the present application, referring to Figures 60 to 65 , there may be an eighth distance A8 between the second central axis Q of the second axis 42 and the door side wall 32. The eighth distance A8 can be the distance between the second central axis Q and the door side wall 32 in the normal direction of the door side wall 32.

[0747] And referring to Figure 70 , Figure 70 is a schematic diagram of the change trend of the eighth distance A8 during the opening process of the door body 30. Among them, the abscissa is the opening angle of the door body 30 The vertical coordinate is the eighth distance A8. As Figure 70 shown, during the process of the door body 30 opening from the closed state to the maximum angle Gmax, the eighth distance A8 can gradually decrease.

[0748] Exemplarily, during the process of the door body 30 opening from the closed state to the maximum angle Gmax, the numerical change of the eighth distance A8 can be within the twenty-second amplitude change rate t 22 (%). The twenty-second amplitude change rate t 22 can be the ratio of the difference between the maximum value A 8max and the minimum value A 8min of the eighth distance during this door-opening process to the average value of the eighth distance That is:

[0749]

[0750] Exemplarily, the twenty-second amplitude change rate t 22 can be greater than or equal to 112% and less than or equal to 122%. For example, the twenty-second amplitude change rate t 22 can be 112%, 113%, 114%, 115%, 116%, 117%, 118%, 119%, 120%, 121%, or 122%.

[0751] Taking Figures 60 to 65 as an example, during the process of the door body 30 opening from the closed state to the maximum angle Gmax, the opening angle of the door body 30 can be 30°, 70°, 80°, 110°, and 120° in sequence. The eighth distance A8 when the door body 30 is opened to 30° can be greater than the eighth distance A8 when the door body 30 is opened to 70°. The eighth distance A8 when the door body 30 is opened to 70° can be greater than the eighth distance A8 when the door body 30 is opened to 80°. The eighth distance A8 when the door body 30 is opened to 80° can be greater than the eighth distance A8 when the door body 30 is opened to 110°. The eighth distance A8 when the door body 30 is opened to 110° can be greater than the eighth distance A8 when the door body 30 is opened to 120°. The eighth distance A8 gradually decreases. With such a setting, during the process of opening the door body 30, the door side wall 32 can move towards the second axis 42, which is beneficial to making the door side wall 32 as far away from the box body 10 and the storage cabinet 100 as possible, thereby facilitating preventing the first side edge W and the second side edge N from colliding with the box body 10 and the storage cabinet 100.

[0752] In some embodiments of the present application, referring to Figure 71 , Figure 71 is a schematic diagram of the change trend of the ratio of the eighth distance A8 to the seventh distance A7 during the opening process of the door body 30. Among them, the horizontal coordinate is the opening angle The ordinate is the ratio of the eighth distance A8 to the seventh distance A7. As Figure 71 shown, during the process of the door body 30 opening from the closed state to the maximum angle Gmax, the ratio of the eighth distance A8 to the seventh distance A7 first increases and then decreases.

[0753] Exemplarily, during the process of the door body 30 opening from the closed state to the twenty-second door opening angle δ 22 , the ratio of the eighth distance A8 to the seventh distance A7 can increase.

[0754] Exemplarily, the twenty-second door opening angle δ 22 can be greater than or equal to 42° and less than or equal to 52°. That is to say, δ 22 ∈[42°, 52°]. For example, the twenty-second door opening angle δ 22 can be 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, 50°, 51° or 52°.

[0755] Exemplarily, during the process of the door body 30 opening from the closed state to the twenty-second door opening angle δ 22 , the numerical change of the ratio of the eighth distance A8 to the seventh distance A7 can be less than or equal to the twenty-third amplitude change rate t 23 (%). The twenty-third amplitude change rate t 23 can be the ratio of the difference between the maximum value A 8 / 7amax of the ratio of the eighth distance to the seventh distance and the minimum value A 8 / 7amin of the ratio of the eighth distance to the seventh distance during this section of the door opening process to the average value of the ratio of the eighth distance to the seventh distance . That is:

[0756]

[0757] Exemplarily, the twenty-third amplitude change rate t 23 can be greater than or equal to 22% and less than or equal to 32%. For example, the twenty-third amplitude change rate t 23 can be 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 31% or 32%.

[0758] Taking Figure 60 and Figure 61 as an example, during the process of the door body 30 opening from the closed state to the twenty-second door opening angle δ 22 , the opening angle of the door body 30 It can be 30°. The ratio of the eighth distance A8 to the seventh distance A7 when the door body 30 is in the closed state can be greater than the ratio of the eighth distance A8 to the seventh distance A7 when the door body 30 is opened to 30°. The ratio of the eighth distance A8 to the seventh distance A7 increases. With such an arrangement, in the initial stage of opening the door body 30, the door side wall 32 is located between the first axis 41 and the storage cabinet 100. When the door body 30 rotates, due to the increase in the ratio of the eighth distance A8 to the seventh distance A7, the door side wall 32 can be closer to the first axis 41 than the second axis 42, which is beneficial for the door side wall 32 to move inward, thereby helping to prevent the first side edge W from exceeding the side wall of the box body 10, so as to prevent the first side edge W from colliding with the inner wall of the storage cabinet 100 as much as possible.

[0759] The door body 30 opens from the 22nd door opening angle δ 22 Open to the 23rd door opening angle δ 23 During the process, the ratio of the eighth distance A8 to the seventh distance A7 can be reduced.

[0760] For example, the twenty-third door opening angle δ 23 It can be greater than or equal to 115° and less than or equal to the maximum angle Gmax. 22 ∈[115°,Gmax]. For example, the twenty-third door opening angle δ 23 It can be 115°, 116°, 117°, 118°, 119° or 120°.

[0761] For example, the door body 30 opens from the 22nd door opening angle δ 22 Open to the 23rd door opening angle δ 23 In the process of the eighth distance A8 and the seventh distance A7, the numerical value of the ratio can be changed at the twenty-fourth amplitude change rate t 24 (%). 24. Amplitude change rate t 24 It can be expressed as the maximum value A of the ratio of the eighth distance to the seventh distance in the door opening process. 8 / 7bmax The minimum value A of the ratio of the eighth distance to the seventh distance 8 / 7bmin The difference between the eighth distance and the seventh distance That is:

[0762]

[0763] For example, the twenty-fourth amplitude change rate t 24 It can be greater than or equal to 78% and less than or equal to 88%. 24 It may be 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87% or 88%.

[0764] byFigure 62 and Figure 65 For example, during the process that the door body 30 is opened from the twenty-second door opening angle δ 22 to the twenty-third door opening angle δ 23 , the opening angle of the door body 30 can be successively 70°, 80°, 110° and 120°. The ratio of the eighth distance A8 to the seventh distance A7 when the door body 30 is opened to 70° can be greater than the ratio of the eighth distance A8 to the seventh distance A7 when the door body 30 is opened to 80°. The ratio of the eighth distance A8 to the seventh distance A7 when the door body 30 is opened to 80° can be greater than the ratio of the eighth distance A8 to the seventh distance A7 when the door body 30 is opened to 110°. The ratio of the eighth distance A8 to the seventh distance A7 when the door body 30 is opened to 110° can be greater than the ratio of the eighth distance A8 to the seventh distance A7 when the door body 30 is opened to 120°. The ratio of the eighth distance A8 to the seventh distance A7 decreases successively. With such a se...

Claims

1. A refrigerator, characterized in that, Comprising: A box body which defines a storage chamber with an access opening; the box body includes a first body side wall and a second body side wall which are oppositely arranged; A door body which has a front door wall that is away from the box body when the door body is closed, a door side wall that is close to the first body side wall and is connected to the front door wall, and a door rear wall that is oppositely arranged with the front door wall; the door rear wall intersects with the door side wall to form a second side edge; A hinge assembly which is close to the first body side wall and connects the box body and the door body so that the door body can rotate relative to the box body to open or close the access opening; The hinge assembly includes: A hinge plate which includes a connecting portion connected to the box body and close to the first body side wall, and an extending portion extending forward from the connecting portion; A first shaft and a second shaft which are arranged on the extending portion; A guiding portion and a guiding part which are arranged on the door body and are close to the door side wall; the first shaft cooperates with the guiding portion, and the second shaft cooperates with the guiding part; The guiding portion has a guiding track line; the guiding track line extends from one end away from the door side wall first in a direction away from the front door wall and close to the door side wall, and then in a direction close to the front door wall and the door side wall; The guiding part has a guiding track line; the guiding track line extends from one end away from the door side wall first in a direction away from the front door wall and close to the door side wall, and then in a direction close to the front door wall and the door side wall; During the process of the door body being opened from the closed state, the central axis of the first shaft moves relative to the guiding portion along its guiding track line, and the central axis of the second shaft moves relative to the guiding part along its guiding track line; The central axis of the first shaft is denoted as the first central axis, and the central axis of the second shaft is denoted as the second central axis; There is a third distance between the first central axis and the second side edge; During the process of the door body being opened from the closed state to the maximum angle, the third distance first decreases, then changes within a second amplitude change rate, and then increases.

2. The refrigerator according to claim 1, wherein During the process of the door body being opened from the closed state to the first opening angle, the third distance decreases; the first opening angle is greater than 32° and less than 42°; During the process of the door body being opened from the first opening angle to the second opening angle, the third distance changes within the second amplitude change rate; the second opening angle is greater than 95° and less than 105°; During the process of the door body being opened from the second opening angle to the third opening angle, the third distance increases; the third opening angle is greater than 115° and less than the maximum angle.

3. The refrigerator according to claim 2, wherein During the process of the door body being opened from the closed state to the first opening angle, the numerical change of the third distance is within a first amplitude change rate, and the first amplitude change rate satisfies the following relationship: Wherein, t1 is the first amplitude change rate; during the process of the door body opening from the closed state to the first opening angle, the maximum value of the third distance is A 3amax , the minimum value of the third distance is A 3amin , and the average value of the third distance is The first amplitude change rate is greater than 19% and less than 29%; The second amplitude change rate satisfies the following relationship: wherein, t2 is the second amplitude change rate; during the process of the door body opening from the first opening angle to the second opening angle, the maximum value of the third distance is A 3bmax , the minimum value of the third distance is A 3bmin , and the average value of the third distance is The second amplitude change rate is greater than 1.9% and less than 3.9%; During the process of the door body opening from the second opening angle to the third opening angle, the numerical change of the third distance is within the third amplitude change rate, and the third amplitude change rate satisfies the following relational expression: wherein, t3 is the third amplitude change rate; during the process of the door body opening from the second opening angle to the third opening angle, the maximum value of the third distance is A 3cmax , the minimum value of the third distance is A 3cmin , and the average value of the third distance is The third amplitude change rate is greater than 12% and less than 22%.

4. The refrigerator according to any one of claims 1-3, characterized in that There is a fourth distance between the second central axis and the second side edge; During the process of the door body opening from the closed state to the maximum angle, the fourth distance first decreases and then increases.

5. The refrigerator according to claim 4, characterized in that During the process of the door body opening from the closed state to the fourth opening angle, the fourth distance decreases; the fourth opening angle is greater than 105° and less than 115°; During the process of the door body opening from the fourth opening angle to the fifth opening angle, the fourth distance increases; the fifth opening angle is greater than 115° and less than the maximum angle.

6. The refrigerator according to claim 5, characterized in that During the process of the door body opening from the closed state to the fourth opening angle, the numerical change of the fourth distance is within the fourth amplitude change rate, and the fourth amplitude change rate satisfies the following relational expression: wherein, t4 is the fourth amplitude change rate; during the process of the door body opening from the closed state to the fourth door opening angle, the maximum value of the fourth distance is A 4amax , the minimum value of the fourth distance is A 4amin , and the average value of the fourth distance is The fourth amplitude change rate is greater than 87% and less than 97%; During the process of the door body opening from the fourth opening angle to the fifth opening angle, the numerical change of the fourth distance is within the fifth amplitude change rate, and the fifth amplitude change rate satisfies the following relational expression: Wherein, t5 is the fifth amplitude change rate; during the process of the door body opening from the fourth door opening angle to the fifth door opening angle, the maximum value of the fourth distance is A 4bmax , the minimum value of the fourth distance is A 4bmin , and the average value of the fourth distance is The fifth amplitude change rate is greater than 5% and less than 15%.

7. The refrigerator according to claim 5, characterized in that During the process of the door body opening from the second opening angle to the third opening angle, the third distance increases; The second opening angle is less than the fourth opening angle.

8. The refrigerator according to any one of claims 1-3, characterized in that There is a fourth distance between the second central axis and the second side edge; During the process of the door body opening from the closed state to the maximum angle, the ratio of the fourth distance to the third distance first changes within the sixth amplitude change rate, then decreases, and then changes within the eighth amplitude change rate.

9. The refrigerator according to claim 8, characterized in that During the process of the door body opening from the closed state to the sixth opening angle, the ratio of the fourth distance to the third distance changes within the sixth amplitude change rate; the sixth opening angle is greater than 19° and less than 29°; During the process of the door body opening from the sixth opening angle to the seventh opening angle, the ratio of the fourth distance to the third distance decreases; the seventh opening angle is greater than 103° and less than 113°; During the process of the door body opening from the seventh opening angle to the eighth opening angle, the ratio of the fourth distance to the third distance changes within the eighth amplitude change rate; the eighth opening angle is greater than 115° and less than the maximum angle.

10. The refrigerator according to claim 9, characterized in that The sixth amplitude change rate satisfies the following relational expression: Wherein, t6 is the sixth amplitude change rate; during the process of the door body opening from the closed state to the sixth door opening angle, the maximum value of the ratio of the fourth distance to the third distance is A 4 / 3amax , the minimum value of the ratio of the fourth distance to the third distance is A 4 / 3amin , the average value of the ratio of the fourth distance to the third distance is The sixth amplitude change rate is greater than 1.1% and less than 3.1%; During the process of the door body opening from the sixth opening angle to the seventh opening angle, the numerical change of the ratio of the fourth distance to the third distance is within the seventh amplitude change rate, and the seventh amplitude change rate satisfies the following relational expression: where t7 is the seventh amplitude change rate; during the process of the door body opening from the sixth door opening angle to the seventh door opening angle, the maximum value of the ratio of the fourth distance to the third distance is A 4 / 3bmax , the minimum value of the ratio of the fourth distance to the third distance is A 4 / 3bmin , and the average value of the ratio of the fourth distance to the third distance is The seventh amplitude change rate is greater than 74% and less than 84%; The eighth amplitude change rate satisfies the following relational expression: Wherein, t8 is the eighth amplitude change rate; during the process that the door body is opened from the seventh door opening angle to the eighth door opening angle, the maximum value of the ratio of the fourth distance to the third distance is A 4 / 3cmax , the minimum value of the ratio of the fourth distance to the third distance is A 4 / 3cmin , and the average value of the ratio of the fourth distance to the third distance is The eighth amplitude change rate is greater than 1.6% and less than 3.6%.

11. The refrigerator according to any one of claims 1-3, wherein The front wall of the door intersects with the side wall of the door to form a first side edge; There is a fifth distance between the first central axis and the first side edge; During the process of the door body opening from the closed state to the maximum angle, the fifth distance first decreases, then changes within the tenth amplitude change rate, and then decreases.

12. The refrigerator according to claim 11, wherein During the process of the door body opening from the closed state to the ninth opening angle, the fifth distance decreases; the ninth opening angle is greater than 47° and less than 57°; During the process of the door body opening from the ninth opening angle to the tenth opening angle, the fifth distance changes within the tenth amplitude change rate; the tenth opening angle is greater than 85° and less than 95°; During the process of the door body opening from the tenth opening angle to the eleventh opening angle, the fifth distance decreases; the eleventh opening angle is greater than 115° and less than the maximum angle.

13. The refrigerator according to claim 12, wherein During the process of the door body opening from the closed state to the ninth opening angle, the numerical change of the fifth distance is within the ninth amplitude change rate, and the ninth amplitude change rate satisfies the following relational expression: Wherein, t9 is the ninth amplitude change rate; during the process of the door body opening from the closed state to the ninth door opening angle, the maximum value of the fifth distance is A 5amax , the minimum value of the fifth distance is A 5amin , the average value of the fifth distance is The ninth amplitude change rate is greater than 18% and less than 28%; The tenth amplitude change rate satisfies the following relational expression: where t 10 is the tenth amplitude change rate; during the process of the door body opening from the ninth opening angle to the tenth opening angle, the maximum value of the fifth distance is A 5bmax , the minimum value of the fifth distance is A 5bmin , and the average value of the fifth distance is The tenth amplitude change rate is greater than 0 and less than 0.02%; During the process of the door body opening from the tenth opening angle to the eleventh opening angle, the numerical change of the fifth distance is within the eleventh amplitude change rate, and the eleventh amplitude change rate satisfies the following relational expression: where t 11 is the eleventh rate of change of amplitude; during the process of the door body opening from the tenth opening angle to the eleventh opening angle, the maximum value of the fifth distance is A 5cmax , the minimum value of the fifth distance is A 5cmin , and the average value of the fifth distance is The eleventh amplitude change rate is greater than 32% and less than 42%.

14. The refrigerator according to any one of claims 1-3, wherein The front wall of the door intersects with the side wall of the door to form a first side edge; There is a sixth distance between the second central axis and the first side edge; During the process of the door body being opened from the closed state to the maximum angle, the sixth distance first decreases, then changes within the thirteenth amplitude change rate t 12 and then increases and then decreases.

15. The refrigerator according to claim 14, wherein During the process of the door body opening from the closed state to the twelfth opening angle, the sixth distance decreases; the twelfth opening angle is greater than 34° and less than 44°; During the process of the door body opening from the twelfth opening angle to the thirteenth opening angle, the numerical value of the sixth distance changes within the thirteenth amplitude change rate; the thirteenth opening angle is greater than 45° and less than 55°; During the process of the door body opening from the thirteenth opening angle to the fourteenth opening angle, the sixth distance increases; the fourteenth opening angle is greater than 75° and less than 85°; During the process of the door body opening from the fourteenth opening angle to the fifteenth opening angle, the sixth distance decreases; the fifteenth opening angle is greater than 115° and less than the maximum angle.

16. The refrigerator according to claim 15, wherein During the process of the door body opening from the closed state to the twelfth opening angle, the numerical change of the sixth distance is within the twelfth amplitude change rate, and the twelfth amplitude change rate satisfies the following relational expression: where t 12 is the twelfth amplitude change rate; during the process of the door body opening from the closed state to the twelfth door opening angle, the maximum value of the sixth distance is A 6amax , the minimum value of the sixth distance is A 6amin , and the average value of the sixth distance is The twelfth amplitude change rate is greater than 4.9% and less than 6.9%; The thirteenth amplitude change rate satisfies the following relational expression: where t 13 is the thirteenth rate of amplitude change; during the process of the door body opening from the twelfth door opening angle to the thirteenth door opening angle, the maximum value of the sixth distance is A 6bmax , the minimum value of the sixth distance is A 6bmin , and the average value of the sixth distance is The thirteenth amplitude change rate is greater than 0.05% and less than 0.25%; During the process of the door body opening from the thirteenth opening angle to the fourteenth opening angle, the numerical change of the sixth distance is within the fourteenth amplitude change rate, and the fourteenth amplitude change rate satisfies the following relational expression: where t 14 is the fourteenth amplitude change rate; during the process of the door body opening from the thirteenth opening angle to the fourteenth opening angle, the maximum value of the sixth distance is A 6cmax , the minimum value of the sixth distance is A 6cmin , and the average value of the sixth distance is The fourteenth amplitude change rate is greater than 2.0% and less than 4.0%; During the process of the door body opening from the fourteenth opening angle to the fifteenth opening angle, the numerical change of the sixth distance is within the fifteenth amplitude change rate, and the fifteenth amplitude change rate satisfies the following relational expression: where t 15 is the fifteenth amplitude change rate; during the process of the door body opening from the fourteenth door opening angle to the fifteenth door opening angle, the maximum value of the sixth distance is A 6dmax , the minimum value of the sixth distance is A 6dmin , and the average value of the sixth distance is The fifteenth amplitude change rate is greater than 25% and less than 35%.

17. The refrigerator according to any one of claims 1-3, wherein The front wall of the door intersects with the side wall of the door to form a first side edge; There is a fifth distance between the first central axis and the first side edge; there is a sixth distance between the second central axis and the first side edge; During the process of the door body opening from the closed state to the maximum angle, the ratio of the sixth distance to the fifth distance first increases, then changes within the seventeenth amplitude change rate, and then increases.

18. The refrigerator according to claim 17, wherein During the process of the door body opening from the closed state to the sixteenth opening angle, the ratio of the sixth distance to the fifth distance increases; the sixteenth opening angle is greater than 61° and less than 71°; During the process of the door body opening from the sixteenth opening angle to the seventeenth opening angle, the ratio of the sixth distance to the fifth distance changes within the seventeenth amplitude change rate; the seventeenth opening angle is greater than 88° and less than 98°; During the process of the door body opening from the seventeenth opening angle to the eighteenth opening angle, the ratio of the sixth distance to the fifth distance increases; the eighteenth opening angle is greater than 115° and less than the maximum angle.

19. The refrigerator according to claim 18, wherein During the process of the door body opening from the closed state to the sixteenth opening angle, the numerical change of the ratio of the sixth distance to the fifth distance is within the sixteenth amplitude change rate, and the sixteenth amplitude change rate satisfies the following relational expression: where t 16 is the sixteenth amplitude change rate; during the process of the door body opening from the closed state to the sixteenth door opening angle, the maximum value of the ratio of the sixth distance to the fifth distance is A 6 / 5amax , the minimum value of the ratio of the sixth distance to the fifth distance is A 6 / 5amin , and the average value of the ratio of the sixth distance to the fifth distance is The sixteenth amplitude change rate is greater than 18% and less than 28%; The seventeenth amplitude change rate satisfies the following relational expression: where t 17 is the seventeenth rate of amplitude change; during the process of the door body opening from the sixteenth opening angle to the seventeenth opening angle, the maximum value of the ratio of the sixth distance to the fifth distance is A 6 / 5bmax , the minimum value of the ratio of the sixth distance to the fifth distance is A 6 / 5bmin , and the average value of the ratio of the sixth distance to the fifth distance is The seventeenth amplitude change rate is greater than 0 and less than 1.6%; During the process of the door body opening from the seventeenth door opening angle to the eighteenth door opening angle, the numerical change of the ratio of the sixth distance to the fifth distance is within the eighteenth amplitude change rate, and the eighteenth amplitude change rate satisfies the following relational expression: where t 18 is the eighteenth amplitude change rate; during the process of the door body opening from the seventeenth opening angle to the eighteenth opening angle, the maximum value of the ratio of the sixth distance to the fifth distance is A 6 / 5cmax , the minimum value of the ratio of the sixth distance to the fifth distance is A 6 / 5cmin , and the average value of the ratio of the sixth distance to the fifth distance is The eighteenth amplitude change rate is greater than 10% and less than 20%.

20. The refrigerator according to any one of claims 1-3, wherein There is a seventh distance between the first central axis and the door side wall; During the process of the door body opening from the closed state to the maximum angle, the seventh distance first decreases, then changes at the twentieth amplitude change rate, and then decreases.

21. The refrigerator according to claim 20, wherein During the process of the door body opening from the closed state to the nineteenth door opening angle, the seventh distance decreases; the nineteenth door opening angle is greater than 50° and less than 60°; During the process of the door body opening from the nineteenth door opening angle to the twentieth door opening angle, the seventh distance changes within the twentieth amplitude change rate; the twentieth door opening angle is greater than 85° and less than 95°; During the process of the door body opening from the twentieth door opening angle to the twenty-first door opening angle, the seventh distance decreases; the twenty-first door opening angle is greater than 115° and less than the maximum angle.

22. The refrigerator according to claim 21, wherein During the process of the door body opening from the closed state to the nineteenth door opening angle, the numerical change of the seventh distance is within the nineteenth amplitude change rate, and the nineteenth amplitude change rate satisfies the following relational expression: where t 19 is the nineteenth rate of change; during the process of the door body opening from the closed state to the nineteenth door opening angle, the maximum value of the seventh distance is A 7amax , the minimum value of the seventh distance is A 7amin , and the average value of the seventh distance is The nineteenth amplitude change rate is greater than 57% and less than 67%; The twentieth amplitude change rate satisfies the following relational expression: where t 20 is the twentieth amplitude change rate; during the process of the door body opening from the nineteenth opening angle to the twentieth opening angle, the maximum value of the seventh distance is A 7bmax , the minimum value of the seventh distance is A 7bmin , and the average value of the seventh distance is The twentieth amplitude change rate is greater than 0 and less than 1.8%; During the process of the door body opening from the twentieth door opening angle to the twenty-first door opening angle, the numerical change of the seventh distance is within the twenty-first amplitude change rate, and the twenty-first amplitude change rate satisfies the following relational expression: where t 21 is the twenty - first amplitude change rate; during the process of the door body opening from the twentieth opening angle to the twenty - first opening angle, the maximum value of the seventh distance is A 7cmax , the minimum value of the seventh distance is A 7cmin , and the average value of the seventh distance is The twenty-first amplitude change rate is greater than 38% and less than 48%.

23. The refrigerator according to any one of claims 1-3, wherein There is an eighth distance between the second central axis and the door side wall; During the process of the door body opening from the closed state to the maximum angle, the eighth distance decreases.

24. The refrigerator according to claim 23, wherein During the process of the door body opening from the closed state to the maximum angle, the numerical change of the eighth distance is within the twenty-second amplitude change rate, and the twenty-second amplitude change rate satisfies the following relational expression: where t 22 is the twenty-second rate of amplitude change; during the process of the door body opening from the closed state to the maximum angle, the maximum value of the eighth distance is A 8max , the minimum value of the eighth distance is A 8min , and the average value of the eighth distance is The twenty-second amplitude change rate is greater than 112% and less than 122%.

25. The refrigerator according to any one of claims 1-3, wherein There is a seventh distance between the first central axis and the door side wall; There is an eighth distance between the second central axis and the door side wall; During the process of the door body opening from the closed state to the maximum door opening angle, the ratio of the eighth distance to the seventh distance first increases and then decreases.

26. The refrigerator according to claim 25, wherein During the process of the door body being opened from the closed state to the twenty-second opening angle, the ratio of the eighth distance to the seventh distance increases; the twenty-second opening angle is greater than 42° and less than 52°; During the process of the door body being opened from the twenty-second opening angle to the twenty-third opening angle, the ratio of the eighth distance to the seventh distance decreases; the twenty-third opening angle is greater than 115° and less than the maximum angle.

27. The refrigerator according to claim 26, wherein During the process of the door body being opened from the closed state to the twenty-second opening angle, the numerical change of the ratio of the eighth distance to the seventh distance is within the twenty-third amplitude change rate, and the twenty-third amplitude change rate satisfies the following relationship: where t 23 is the twenty-third rate of amplitude change; during the process of the door body opening from the closed state to the twenty-second door opening angle, the maximum value of the ratio of the eighth distance to the seventh distance is A 8 / 7amax , the minimum value of the ratio of the eighth distance to the seventh distance is A 8 / 7amin , and the average value of the ratio of the eighth distance to the seventh distance is The twenty-third amplitude change rate is greater than 22% and less than 32%; During the process of the door body being opened from the twenty-second opening angle to the twenty-third opening angle, the numerical change of the ratio of the eighth distance to the seventh distance is within the twenty-fourth amplitude change rate, and the twenty-fourth amplitude change rate satisfies the following relationship: where t 24 is the twenty-fourth rate of amplitude change; during the process of the door body opening from the twenty-second opening angle to the twenty-third opening angle, the maximum value of the ratio of the eighth distance to the seventh distance is A 8 / 7bmax , the minimum value of the ratio of the eighth distance to the seventh distance is A 8 / 7bmin , and the average value of the ratio of the eighth distance to the seventh distance is The twenty-fourth amplitude change rate is greater than 78% and less than 88%.

28. The refrigerator according to any one of claims 1 to 3, characterized in that, There is an included angle between the connection line between the first central axis and the second side edge and the second reference plane; During the process of the door body being opened from the closed state to the maximum angle, the included angle increases; Wherein, the second reference plane is the plane where the access opening is located.

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