Refrigerator

Abstract

The utility model provides a refrigerator which comprises a refrigerator body, a door body, a first shaft, a second shaft, a guide part and a guide part, wherein the first shaft and the second shaft are fixed with the refrigerator body; the guide part is provided with a guide track line S extending in the direction close to the door front wall and the door side wall; the guide part is provided with a guide track line K, and the guide track line K comprises a first guide section and a second guide section; the first guide section extends from one end far away from the door side wall to the direction close to the door side wall and far away from the door front wall, and the second guide section extends to the direction close to the door side wall and the door front wall; in the process that the door body is opened from the third direction angle GF3 to the fourth direction angle GF4, the first shaft moves towards one side close to the door front wall and the door side wall, and the second shaft moves towards one side far away from the door front wall and close to the door side wall; gF3 < 90 degrees < GF4; according to the refrigerator, when the door body is opened, the door body does not interfere with the containing cabinet, the door body can be opened to a larger angle in the containing cabinet, the door body can be completely opened in the containing cabinet, and a user can conveniently take and place articles.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a refrigerator. Background Art

[0002] Built-in refrigerators are generally built into a customized storage cabinet. In order to improve the fit of the refrigerator in the external storage cabinet, the gap between the outer wall of the refrigerator and the inner wall of the storage cabinet is generally set to be very small. When the refrigerator door is opened, the rotating door hinge vertical edge is easy to hit the inner wall of the external storage cabinet. Due to the space limitation of the storage cabinet, in order to ensure that the door body can be opened effectively, the corner of the door body must not exceed the size of the cabinet too much during the door opening process.

[0003] At present, in order to meet the needs of embedded installation, most of them are equipped with a double shaft on one of the door and the box body, and a guide structure matched with the double shaft is arranged on the other to control the door to move inward while rotating to open, so as to meet the needs of embedded installation. Under the setting of the combination of the double shaft and the guide, the door moves inward during the opening process, so as 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.

[0004] When customizing the storage cabinet in which the built-in refrigerator is embedded, usually, one of the standards is that when the refrigerator door is closed, the front wall of the door is flush with the plane where the opening end of the storage cabinet is located, so that the size of the refrigerator matches the size of the storage cabinet and a hidden flush installation is achieved; in addition, another standard is that the distance between the inner wall of the storage cabinet and the outer wall of the refrigerator or the side wall of the door when the door body is closed meets the minimum value for installing the refrigerator in the storage cabinet, so that the refrigerator can make full use of the installation space limited by the storage cabinet and achieve installation without / without a small gap. On the premise that the door of the built-in refrigerator can be opened smoothly without interfering with the inner wall of the storage cabinet, as the opening angle of the refrigerator door increases, the front wall of the door approaches the end of the adjacent storage cabinet near its opening; when the front wall of the door contacts the end of the adjacent storage cabinet near its opening, the door body is opened to the extreme position. In summary, the maximum opening angle of the refrigerator door installed in the storage cabinet is limited by the size of the storage cabinet for realizing the hidden installation of the refrigerator and the gap between the door side wall and the inner wall of the storage cabinet when the outer wall or door body of the refrigerator is closed. The maximum opening angle of the refrigerator door installed in the storage cabinet is small, which is inconvenient for users to take and put items. Summary of the invention

[0005] The utility model solves one of the many technical problems in the related art at least to a certain extent.

[0006] To this end, the present application aims to provide a refrigerator whose hinge assembly enables a door body placed in a storage cabinet to be opened to a larger angle.

[0007] The refrigerator according to the present application comprises:

[0008] A box body defines a storage chamber having a take-in and put-out opening; the box body comprises a first body side wall and a second body side wall arranged opposite to each other;

[0009] The door body comprises a door front wall away from the box body when the door body is closed, and a door side wall close to the first body side wall and connected to the door front wall;

[0010] A hinge assembly, which 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:

[0011] A hinge plate, comprising a connecting portion connected to the box body and close to the side wall of the first body, and an extending portion extending forward from the connecting portion;

[0012] A first shaft and a second shaft, which are disposed on the extension portion;

[0013] A guide part and a guide portion, which are arranged on the door body and close to the door side wall; the first shaft cooperates with the guide part, and the second shaft cooperates with the guide part;

[0014] Wherein, the guide portion has a guide track line S, and the guide track line S extends from an end thereof away from the door side wall toward a direction close to the door front wall and the door side wall;

[0015] The guide portion has a guide track line K, and the guide track line K includes a first guide section and a second guide section; the first guide section extends from an end thereof away from the door side wall to a direction close to the door side wall and away from the door front wall, and the second guide section extends from an end of the first guide section close to the door side wall to a direction close to the door side wall and the door front wall;

[0016] When the door body is opened, the guide portion guides the first shaft so that the central axis of the first shaft moves along the guide trajectory line S, and the guide portion guides the second shaft so that the central axis of the second shaft moves along the guide trajectory line K;

[0017] When the door body is opened, the first shaft moves relative to the guide portion, and the second shaft moves relative to the guide portion, so that the door body moves a certain distance to a side away from the side wall of the second body while rotating;

[0018] Wherein, the door body is at a third direction angle G F3 Open to the fourth direction angle G F4 In the process, the first axis moves toward the side close to the door front wall and the door side wall, and the second axis moves away from the door front wall and close to the door side wall; wherein G F3 <90°<G F4 .

[0019] A refrigerator, comprising:

[0020] A box body defines a storage chamber having a take-in and put-out opening; the box body comprises a first body side wall and a second body side wall arranged opposite to each other;

[0021] The door body comprises a door front wall away from the box body when the door body is closed, and a door side wall close to the first body side wall and connected to the door front wall;

[0022] A hinge assembly, which 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:

[0023] A hinge plate, comprising a connecting portion connected to the box body and close to the side wall of the first body, and an extending portion extending forward from the connecting portion;

[0024] A first shaft and a second shaft, which are arranged on the extension portion; the first shaft is located on a side of the second shaft close to the first body side wall and the access opening;

[0025] A guide part and a guide portion, which are arranged on the door body and close to the door side wall; the first shaft cooperates with the guide part, and the second shaft cooperates with the guide part;

[0026] Wherein, the guide portion has a guide track line S, and the guide track line S extends from an end thereof away from the door side wall toward a direction close to the door front wall and the door side wall;

[0027] The guide portion has a guide track line K, and the guide track line K includes a first guide section and a second guide section; the first guide section extends from an end thereof away from the door side wall to a direction close to the door side wall and away from the door front wall, and the second guide section extends from an end of the first guide section close to the door side wall to a direction close to the door side wall and the door front wall;

[0028] When the door body is opened, the guide portion guides the first shaft so that the central axis of the first shaft moves along the guide trajectory line S, and the guide portion guides the second shaft so that the central axis of the second shaft moves along the guide trajectory line K;

[0029] When the door body is opened, the first shaft moves relative to the guide portion, and the second shaft moves relative to the guide portion, so that the door body moves a certain distance to a side away from the side wall of the second body while rotating;

[0030] Wherein, the door body is at a third direction angle G F3 Open to the fourth direction angle G F4In the process, the first axis moves toward the side close to the door front wall and the door side wall, and the second axis moves away from the door front wall and close to the door side wall; wherein G F3 <90°<G F4 .

[0031] In some embodiments of the present application, the guide track line K includes an initial guide segment; the initial guide segment extends from an end of the first guide segment away from the door side wall toward a direction close to the door side wall and the door front wall;

[0032] The guide trajectory line S is a straight line; the angle between the guide trajectory line S and the front wall of the door is recorded as γ ;

[0033] in, γ Not less than the first angle reference value; γ≥23° or γ≥26° or γ≥29°;

[0034] γ Not greater than the second angle reference value; γ≤31° or γ≤34° or γ≤37°.

[0035] In some embodiments of the present application, the central axis of the first axis is denoted as the first central axis P, and the central axis of the second axis is denoted as the second central axis Q;

[0036] In the projection of the plane where the top wall of the box body is located, the line segment where the first central axis P and the second central axis Q are located is recorded as the axis line segment PQ, and the midpoint of the axis line segment PQ is recorded as the axis midpoint I;

[0037] During the process of the door body opening from the first angle G1 to the third angle G3, the center point I of the axis moves toward a side away from the door front wall and the door side wall;

[0038] During the process of the door body opening from the third angle G3 to the eighth angle G8, the center point I of the axis moves away from the door front wall and closer to the door side wall;

[0039] The door body is opened from the eighth angle G8 to the tenth angle G 10 During the process, the center point I of the axis moves toward the side close to the door front wall and the door side wall;

[0040] Among them, G1<G3<G6=G F3 <G7=90°<G8<G9=G F4 <G 10 .

[0041] In some embodiments of the present application, during the process of the door body opening from the first angle G1 to the third angle G3,

[0042] The door body is opened from the third angle G3 to the first turning angle G Z1 In the process,

[0043] The door body is turned from the first angle G Z1 During the process of opening to the seventh angle G7 = 90°, Among them, G1<G3<G Z1 <G7=90°.

[0044] In some embodiments of the present application, in the projection of the top wall of the box body, 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 second central axis Q and the straight line QP where the first central axis P is located and the first body side wall is recorded as β;

[0045] β is not less than the first reference value, β≥60° or β≥65° or β≥70°;

[0046] β is not greater than a second reference value, β≤75° or β≤80° or β≤85°.

[0047] In some embodiments of the present application, the door body has a door rear wall opposite to the door front wall; the door side wall intersects with the door rear wall to form a second side edge N;

[0048] The guide track line S is a curve; the guide track line S is convex toward the side close to the second side edge N;

[0049] The end point of the guide trajectory line S away from the door front wall and the door side wall is recorded as the first guide point P1, and the end point close to the door side wall and the door front wall is recorded as the seventh guide point P7;

[0050] The straight line where the first guide point P1 and the seventh guide point P7 are located is recorded as straight line P1P7; the angle between the straight line P1P7 and the front wall of the door is recorded as λ;

[0051] Wherein, λ is not less than the first angle reference value; λ≥32° or λ≥35° or λ≥38°;

[0052] λ is not greater than the second angle reference value; λ≤40° or λ≤43° or λ≤46°.

[0053] In some embodiments of the present application, the central axis of the first axis is denoted as the first central axis P, and the central axis of the second axis is denoted as the second central axis Q;

[0054] In the projection of the top wall of the box body, 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 second central axis Q and the straight line QP where the first central axis P is located and the first body side wall is denoted as β;

[0055] β is not less than the first reference value, β≥65° or β≥70° or β≥74°;

[0056] β is not greater than a second reference value, β≤77° or β≤81° or β≤86°.

[0057] In some embodiments of the present application, in the projection of the plane where the top wall of the box body is located, the line segment where the first central axis P and the second central axis Q are located is recorded as an axis line segment PQ, and the midpoint of the axis line segment PQ is recorded as an axis midpoint I;

[0058] When the door body is opened from the first angle G1 to the fifth angle G5, the center point I of the axis moves away from the front wall of the door and closer to the side wall of the door;

[0059] When the door body is opened from the fifth angle G5 to the seventh angle G7, the center point I of the axis moves toward the side close to the door front wall and the door side wall;

[0060] In the process of the door body opening from the seventh angle G7 to the eighth angle G8, the center point I of the axis moves away from the front wall of the door and closer to the side wall of the door;

[0061] Among them, G1<G3=G F3 <G4=90°<G5<G6=G F4 <G7<G8.

[0062] In some embodiments of the present application, a displacement coordinate system AOB is established within the projection of the plane where the top wall of the box is located; wherein, in the displacement coordinate system AOB, OB is perpendicular to the plane where the access port is located, and the direction from the access port to the front wall of the door when the door is closed is taken as positive; OA is parallel to the plane where the access port is located, and the direction from the second body side wall to the first body side wall is taken as positive; the displacement coordinate system AOB is a coordinate system that is stationary relative to the box;

[0063] During the whole process of the door body opening from the first angle G1 to the eighth angle G8, the door body has a first direction displacement parallel to the front wall of the door while rotating. A second direction displacement parallel to the door side wall The first direction displacement 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

[0064] The door body is opened from the first angle G1 to the first turning angle G Z1 In the process,

[0065] The door body is turned from the first angle G Z1 During the process of opening to the fourth angle G4 = 90°, Among them, G1<G Z1 <G4=90°.

[0066] Compared with the prior art, the advantages and positive effects of the utility model are:

[0067] The utility model provides a refrigerator, which comprises a box body, a door body, a first axis and a second axis fixed to the box body, a guide portion and a guide portion arranged on the door body; the guide portion has a guide track line S extending in a direction close to a door front wall and a door side wall; the guide portion has a guide track line K, and the guide track line K comprises a first guide segment and a second guide segment; the first guide segment extends from an end thereof away from the door side wall in a direction close to the door side wall and away from the door front wall, and the second guide segment extends in a direction close to the door side wall and the door front wall; the door body is angled from a third direction G F3 Open to the fourth direction angle G F4 During the process, the first axis moves toward the side close to the door front wall and the door side wall, and the second axis moves away from the door front wall and close to the door side wall; G F3 <90°<G F4 The utility model refrigerator makes it possible for the door body to not interfere with the storage cabinet when opening, and enables the door body to be opened to a larger angle in the storage cabinet, so that the door body can be fully opened in the storage cabinet, making it convenient for users to take and put items. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 It is a three-dimensional diagram of the refrigerator of the utility model;

[0069] Figure 2 The opening angle of the door of the refrigerator of the utility model The view at the hinge.

[0070] Figure 3 The opening angle of the door of the refrigerator of the utility model The view at the hinge.

[0071] Figure 4 The opening angle of the door of the refrigerator of the utility model The view at the hinge.

[0072] Figure 5 The opening angle of the door of the refrigerator of the utility model The view at the hinge.

[0073] Figure 6 The opening angle of the door of the refrigerator of the utility model The view at the hinge.

[0074] Figure 7 The opening angle of the door of the refrigerator of the utility model The view at the hinge.

[0075] Figure 8 The opening angle of the door of the refrigerator of the utility model The view at the hinge.

[0076] Fig. 9 The opening angle of the door of the refrigerator of the utility model The view at the hinge.

[0077] Fig.10 The opening angle of the door of the refrigerator of the utility model The view at the hinge.

[0078] Fig.11 The opening angle of the door of the refrigerator of the utility model The view at the hinge.

[0079] Fig.12 It is a schematic diagram of the positions of the first axis relative to the guide part and the second axis relative to the guide part during the opening process of the door body of the refrigerator of the utility model in the first stage (G1-G2);

[0080] Fig.13 It is a schematic diagram of the positions of the first axis relative to the guide part and the second axis relative to the guide part during the opening process of the door body of the refrigerator of the utility model in the second stage (G2-G4);

[0081] Fig.14 It is a schematic diagram of the positions of the first axis relative to the guide part and the second axis relative to the guide part during the opening process of the door of the refrigerator of the utility model in the third stage (G4-G5);

[0082] Fig.15 It is a schematic diagram of the positions of the first axis relative to the guide part and the second axis relative to the guide part during the opening process of the door of the refrigerator of the utility model in the fourth stage (G5-G6);

[0083] Fig.16 It is a schematic diagram of the positions of the first axis relative to the guide part and the second axis relative to the guide part during the opening process of the door of the refrigerator of the utility model in the fifth stage (G6-G9);

[0084] Fig.17 The door of the refrigerator of the utility model is in the sixth stage (G9~G 10 ) A schematic diagram of the position of the first shaft relative to the guide portion and the second shaft relative to the guide portion during the opening process;

[0085] Fig.18 The door of the refrigerator of the utility model is opened from G1 to G 10A schematic diagram of the movement of the first shaft relative to the guide part and the second shaft relative to the guide part during the process;

[0086] Fig.19a It is a schematic diagram of the relative positions of the door body and the refrigerator body when the door body of the refrigerator of the utility model is opened to G1;

[0087] Fig.19b The opening angle of the door of the refrigerator of the utility model Schematic diagram of the relative position of the door body and the box body;

[0088] Fig.19c The opening angle of the door of the refrigerator of the utility model Schematic diagram of the relative position of the door body and the box body;

[0089] Fig.19d The opening angle of the door of the refrigerator of the utility model Schematic diagram of the relative position of the door body and the box body;

[0090] Fig.19e The opening angle of the door of the refrigerator of the utility model Schematic diagram of the relative position of the door body and the box body;

[0091] Fig.19f The opening angle of the door of the refrigerator of the utility model Schematic diagram of the relative position of the door body and the box body;

[0092] Figure 19g The opening angle of the door of the refrigerator of the utility model Schematic diagram of the relative position of the door body and the box body;

[0093] Figure 19h The opening angle of the door of the refrigerator of the utility model Schematic diagram of the relative position of the door body and the box body.

[0094] Fig. 20 is a top view of another implementation of a refrigerator;

[0095] Fig.21 yes Fig. 20 A schematic diagram of a partial enlarged structure of the fitting position of the two door bodies when they are closed;

[0096] Fig. 22 is a top view of another implementation of a refrigerator;

[0097] Fig.23 yes Fig. 22 A schematic diagram of the three-dimensional structure of a refrigerator with a door having a flip beam when the door is opened at a certain angle;

[0098] Fig.24 yes Fig. 22A schematic diagram of the relative positions of the turning beam and the refrigerator body shown;

[0099] Fig.25 yes Fig. 22 The door of the refrigerator shown is closed to angle G S Schematic diagram of the relative position of the flip beam and the guide rail;

[0100] Fig.26 yes Fig. 22 The door of the refrigerator shown is closed to angle G F Schematic diagram of the relative position of the flip beam and the guide rail;

[0101] Fig. 27 It is a structural schematic diagram of the locking state of the first matching part and the second matching part when the door of the refrigerator of the utility model is closed;

[0102] Fig.28 The door opening angle of another implementation of the refrigerator of the utility model is The view at the hinge.

[0103] Fig.29 The door opening angle of another implementation of the refrigerator of the utility model is The view at the hinge.

[0104] Fig.30 The door opening angle of another implementation of the refrigerator of the utility model is The view at the hinge.

[0105] Fig.31 The door opening angle of another implementation of the refrigerator of the utility model is The view at the hinge.

[0106] Fig.32 The door opening angle of another implementation of the refrigerator of the utility model is The view at the hinge.

[0107] Fig.33 The door opening angle of another implementation of the refrigerator of the utility model is The view at the hinge.

[0108] Fig.34 The door opening angle of another implementation of the refrigerator of the utility model is The view at the hinge.

[0109] Fig.35 The door opening angle of another implementation of the refrigerator of the utility model is The view at the hinge.

[0110] Fig.36This is a schematic diagram of the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door body of another implementation mode of the refrigerator of the utility model in the first stage (G1-G2);

[0111] Fig.37 This is a schematic diagram of the positions of the first axis relative to the guide portion and the second axis relative to the guide portion during the opening process of the door body of another implementation mode of the refrigerator of the utility model in the second stage (G2-G3);

[0112] Fig.38 It is a schematic diagram of the positions of the first axis relative to the guide part and the second axis relative to the guide part during the opening process of the door body of another implementation mode of the refrigerator of the utility model in the third stage (G3-G6);

[0113] Fig.39 It is a schematic diagram of the positions of the first axis relative to the guide part and the second axis relative to the guide part during the opening process of the door body of another implementation mode of the refrigerator of the utility model in the fourth stage (G6-G7);

[0114] Fig.40 It is a schematic diagram of the positions of the first axis relative to the guide part and the second axis relative to the guide part during the opening process of the door body of another implementation mode of the refrigerator of the utility model in the fifth stage (G7-G8);

[0115] Fig.41 It is a schematic diagram of the movement of the first axis relative to the guide part and the second axis relative to the guide part during the process of the door body of another implementation mode of the refrigerator of the utility model being opened from G1 to G8;

[0116] Fig.42a This is a schematic diagram of the relative positions of the door body and the refrigerator body when the door body is opened to G1 in another implementation mode of the refrigerator of the utility model;

[0117] Figure 42b The door opening angle of another implementation of the refrigerator of the utility model is Schematic diagram of the relative position of the door body and the box body;

[0118] Fig.42c The door opening angle of another implementation of the refrigerator of the utility model is Schematic diagram of the relative position of the door body and the box body;

[0119] Fig.42d The door opening angle of another implementation of the refrigerator of the utility model is Schematic diagram of the relative position of the door body and the box body;

[0120] Figure 42e The door opening angle of another implementation of the refrigerator of the utility model is Schematic diagram of the relative position of the door body and the box body;

[0121] Figure 42f The door opening angle of another implementation of the refrigerator of the utility model is Schematic diagram of the relative position of the door body and the box body;

[0122] Figure 42g The door opening angle of another implementation of the refrigerator of the utility model is Schematic diagram of the relative position of the door body and the box body.

[0123] In the above figures: box body 10; storage cabinet 100; door body 30; door front wall 31; door side wall 32; first side edge W; second side edge N; hinge plate 40; door seal 5; side seal 3; flip beam 9; guide block 90; guide rail 91;

[0124] First axis 41; second axis 42; first central axis P; second central axis Q;

[0125] Guide section 50; guide trajectory S; first guide point P1; second guide point P2; third guide point P3; fourth guide point P4; fifth guide point P5; sixth guide point P6; seventh guide point P7; eighth guide point P8; ninth guide point P9; tenth guide point P 10 ;

[0126] Guide portion 60; guide trajectory line K; first guide point Q1; second guide point Q2; third guide point Q3; fourth guide point Q4; fifth guide point Q5; sixth guide point Q6; seventh guide point Q7; eighth guide point Q8; ninth guide point Q9; tenth guide point Q 10 ;

[0127] Accommodating groove 37 ; plate body 81 ; locking hook 82 ; root connection portion 83 ; hooking portion 84 ; connecting portion 401 ; extending portion 402 ; stopping portion 403 ; hooking gap 404 . DETAILED DESCRIPTION

[0128] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0129] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0130] The terms "first", "second", "third", "fourth", and "fifth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", "fourth", and "fifth" may explicitly or implicitly include one or more of the features.

[0131] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0132] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. In the accompanying drawings, a side of the refrigerator facing a user when in use is defined as a front side, and a side opposite thereto is defined as a rear side.

[0133] Reference Figure 1 The refrigerator includes a cabinet 10 having a storage chamber, and a door 30 connected to the cabinet 10 to open and close the storage chamber.

[0134] In some embodiments of the present application, the box body 10 defines a plurality of storage chambers for storing items. A loading and unloading opening is formed at the front end of the storage chamber to place food into the storage chamber or take food out of the storage chamber; the refrigerator has a refrigeration device for supplying cold air to the storage chamber to store the items placed in the storage chamber at low temperatures. A rotatable door body 30 is provided on the box body 10 to open or close the loading and unloading opening of the storage chamber.

[0135] Specifically, the door body 30 is rotatably connected to the box body 10 via a hinge assembly located at an upper portion and / or a hinge assembly located at a lower portion.

[0136] In some embodiments of the present application, the hinge assembly includes a first hinge component and a second hinge component, and the first hinge component cooperates with the second hinge component and can rotate relative to each other.

[0137] The box body 10 includes a first side wall and a second side wall (i.e., a left side wall and a right side wall of the box body 10) that are arranged opposite to each other. The first hinge is arranged on the box body 10 and close to the first side wall, and the second hinge is arranged at the end of the door body 30 close to the first hinge. The first hinge cooperates with the second hinge to allow the box body 10 and the door body 30 to rotate relative to each other. The door body 30 includes a door front wall 31 that is away from the box body 10 when the door body 30 is closed, a door rear wall 33 that is arranged opposite to the door front wall 31, and a door side wall 32 that is close to the first hinge and connected to the door front wall 31. For example, when the first hinge is located on the right side of the box body 10, the right side of the door body 30 is the door side wall 32 when the door body 30 is closed. When the first hinge 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.

[0138] The front wall 31 and the side wall 32 of the door body 30 intersect to form a first side edge W, and the side wall 32 and the 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 away from the box body 10 .

[0139] It should be noted that when the door front wall 31 and the door side wall 32 are both 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 door side wall 32 and the door rear wall 33.

[0140] In actual production and processing, the intersection of the door front wall 31 and the door side wall 32 is set as a rounded transition, so that a curved surface is formed at the intersection of the door front wall 31 and the door side wall 32. On the curved surface at the intersection of the door front wall 31 and the door side wall 32, any straight line extending along the height direction of the door body 30 can be used as 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.

[0141] In some embodiments of the present application, a door seal 5 is provided on the door rear wall 33. When the door body 30 is closed, the door seal 5 fits with the front end surface of the box body surrounding the access opening 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 to prevent cold air from escaping. It can be provided that the door seal 5 is annular. The door seal 5 is located between the door rear wall 33 and the front end surface of the box body, and the door rear wall 33 is located on the side of the plane where the access opening of the box body 10 is located close to the door seal 5.

[0142] In some embodiments of the present application, refer to Figure 1 to Figure 2 and Fig. 27The first hinge member includes a hinge plate 40, a first shaft 41 and a second shaft 42 provided on the hinge plate 40. The hinge plate 40 includes: a connecting portion 401 connected to the box body 10 and close to the side wall of the first body, 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. The extending portion 402 is in the shape of a horizontal plate.

[0143] 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 surface of the box body 10. The first axis 41 and the second axis 42 are formed on the extension portion 402 of the first hinge. The second axis 42 is located on the side of the first axis 41 away from the side wall of the first body.

[0144] The second hinge member includes: a guide portion 50 and a guide portion 60 located at the end of the door body 30 near the first hinge member. The first shaft 41 is adapted to the guide portion 50, and the second shaft 42 is adapted to the guide portion 60. When the door body 30 rotates to open or close, the first shaft 41 moves relative to the guide portion 50, and the second shaft 42 moves relative to the guide portion 60.

[0145] 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 limited axis 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 adapt to the guide portion 50 or the guide portion 60 provided on the door body 30.

[0146] The built-in refrigerator is a refrigerator that is embedded as a whole in a customized storage cabinet 100. The end face of the storage cabinet 100 defining its opening is recorded as the opening end face. The refrigerator is embedded flat in the storage cabinet 100. When the door body of the refrigerator is closed, the door front wall 31 of the door body 30 is flush with the opening end face of the storage cabinet 100. In the utility model, the first shaft 41 cooperates with the guide part 50, and the second shaft 42 cooperates with the guide part 60, so that the door body 30 moves inward 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 storage cabinet 100, effectively avoiding scratches on the storage cabinet 100 or the door body of the refrigerator.

[0147] It should be noted that the "flush" in the above-mentioned flushness between the front door wall 31 and the opening end face of the storage cabinet 100 includes being on the same plane, or the distance between the two planes is not greater than 2 mm. Specifically, the front door wall 31 is located on the side of the opening end face of the storage cabinet 100 away from the access port, and the distance between the two planes is not greater than 2 mm. Or the front door wall 31 is located on the side of the opening end face of the storage cabinet 100 close to the access port, and the distance between the two planes is not greater than 2 mm.

[0148] In some embodiments of the present application, the first shaft 41 and the second shaft 42 are provided on the extension part 402 at the upper and lower ends of the door body 30, and the guide part 50 and the guide part 60 are provided at the upper and lower ends of the door body 30. It should be noted that the setting of this embodiment is not limited to being set at both the upper and lower ends of the door body 30, and it is set as needed to connect the door body 30 and the box body 10.

[0149] In some embodiments of the present application, Figure 1-2 As shown, the plane where the side surface (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 inner cavity of the storage chamber is recorded as the outer side, and the opposite side close to the inner cavity of the storage chamber is recorded as the inner side.

[0150] When the refrigerator is placed in the storage cabinet 100 for use, in order to prevent factors such as uneven ground and deformation of the storage cabinet 100, when the storage cabinet 100 is set in size, the distance between the storage cabinet 100 and the side of the refrigerator (the first body side wall, that is, the reference plane M0) is α In order to ensure that the door 30 of the refrigerator opens normally, the first side edge W of the door 30 cannot exceed the side surface of the cabinet 10 (reference plane M0) too much during the rotation process to avoid the first side edge W colliding with the storage cabinet 100 and causing the door 30 to fail to open normally.

[0151] In some embodiments of the present application, α `Any value between 3 and 5 mm.

[0152] In some embodiments of the present application, α `=3mm; that is, the distance between the door side wall of the door body 30 and the storage cabinet 100 is 3mm.

[0153] To meet the above requirements, the door body 30 needs to be able to move inward during the rotation process, so that the first side edge W does not exceed the side wall (reference plane M0) of the box body 10 too much. Taking the hinge plate 40 as an example, the hinge plate 40 is arranged 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), 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 as an example, the hinge plate 40 is arranged on the left side of the door body 30, the inner side is the right side, that is, the door body 30 needs to be able to move to the right.

[0154] In some embodiments of the present application, the central axis of the first axis 41 is recorded as the first central axis P, and the central axis of the second axis 42 is recorded as the second central axis Q.

[0155] In some embodiments of the present application, Figure 2 As shown, in the projection 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 plane where the first body side wall and the access opening are located.

[0156] In some embodiments of the present application, along the direction from the door rear wall 33 to the door front wall 31 , the distance between the guide groove and the door side wall 32 gradually decreases.

[0157] In some embodiments of the present application, the trajectory line of the relative movement of the first central axis P guided by the guide portion 50 is the guide trajectory line S. The trajectory line of the relative movement of the second central axis Q guided by the guide portion 60 is the guide trajectory line K. The guide trajectory line S is located on the side of the guide trajectory line K close to the first side edge W.

[0158] In some embodiments of the present application, the guide trajectory line S is the center trajectory line of the guide portion 50 , and the guide trajectory line K is the center trajectory line of the guide portion 60 .

[0159] When the guide portion 50 is configured as a guide groove structure, the center trajectory line of the guide groove is the guide trajectory line S. When the guide portion 60 is configured as a guide groove structure, the center trajectory line of the guide groove is the guide trajectory line K.

[0160] In some embodiments of the present application, along a direction from an end of the door body 30 away from the door side wall 32 to the door side wall 32 , a distance between the guide track line S and the door front wall 31 gradually decreases.

[0161] In some embodiments of the present application, the guide track line S extends from one end thereof away from the door side wall 32 to a side close to the door front wall 31 and the door side wall 32 .

[0162] In some embodiments of the present application, the guide trajectory line K includes a first guide segment and a second guide segment; the first guide segment extends from an end away from the door side wall 32 toward a direction close to the door side wall 32 and away from the door front wall 31, and the second guide segment extends from an end of the first guide segment close to the door side wall 32 toward a direction close to the door side wall 32 and the door front wall 31.

[0163] When the door body 30 is opened, the guide portion 50 guides the first shaft 41 so that the central axis of the first shaft 41 moves along the guide trajectory S, and the guide portion 60 guides the second shaft 42 so that the central axis of the second shaft 42 moves along the guide trajectory K.

[0164] In some embodiments of the present application, when the door body 30 is in a closed state, the second axis 42 is located on a side of the first axis 41 away from the second side edge N. The guide portion 60 is located on a side of the guide portion 50 away from the first side edge W.

[0165] Since the guide portion 50 and the first shaft 41, and the guide portion 60 and the second shaft 42 are in a relative motion relationship, if the door body 30 is opened, with the guide portion 50 and the guide portion 60 as stationary reference objects, it is equivalent to the first shaft 41 moving under the restriction of the guide portion 50, and the second shaft 42 moving under the restriction of the guide portion 60. For the convenience of description, the present application adopts the guide portion 50 and the guide portion 60 as stationary reference objects, and the first shaft 41 and the second shaft 42 move relative to the stationary reference objects for description.

[0166] In some embodiments of the present application, in the projection of the plane where the top wall of the box body 10 is located, the line segment PQ is recorded as the axis line segment PQ; the center of the axis line segment PQ is recorded as the axis center point I. Figure 2-Figure 18 , Figure 28-Figure 41 As shown, the movement of the first axis 41 along the guide portion 50 is equivalent to the movement of the first center axis P along the guide trajectory S, and the movement of the second axis 42 along the guide portion 60 is equivalent to the movement of the second center axis Q along the guide trajectory K, so that the door body 30 can move a distance inward (in the direction close to the second body side wall) while rotating, so that the door body 30 does not interfere with the storage cabinet 100, ensuring that the door body 30 is effectively opened.

[0167] Under the above settings, during the process of the door body 30 opening, the first axis 41 moves relative to the guide part 50 throughout the entire process, the second axis 42 moves relative to the guide part 60 throughout the entire process, and the door body 30 rotates around the point (axis center point I) that maintains dynamic changes relative to the door body 30 throughout the entire process. Under the above settings, during the process of the door body 30 opening, the first center axis P moves relative to the guide trajectory line S, and the second center axis Q moves relative to the guide trajectory line K, and they rotate with the axis center point I as the instantaneous rotation center, and the instantaneous rotation center of the door body 30 is the axis center point I. The position of the axis center point I relative to the door body 30 is constantly changing, and the position of the instantaneous rotation center of the door body 30 is constantly changing.

[0168] It should be noted that, different from the above configuration, only the center axis of the first shaft 41 is used as the instantaneous rotation center axis first center axis P of the rotational motion, rather than the axis center point I.

[0169] The movement of the door body 30 relative to the box body 10 is equivalent to the relative movement of the two in the plane where the top wall of the box body 10 is located (or in the plane perpendicular to the first side edge W or the second side edge N). That is, the movement of the door body 30 relative to the box body 10 can be attributed to the relative movement in a two-dimensional plane.

[0170] Since the first hinge member having the first axis 41 and the second axis 42 is fixed on the box body 10, and the second hinge member having the guide portion 50 and the guide portion 60 is located on the door body 30, in the plane where the top wall of the box body 10 is located, the movement of the first hinge member (axial line segment PQ) relative to the door body 30 (guide portion 50 and guide portion 60) is equivalent to the movement of the axial 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.

[0171] In the following description, for the convenience of explanation, the movement of the axis line segment PQ relative to the second hinge member (the guide portion 50 and the guide portion 60) provided on the door body 30 in the plane where the top wall of the box body 10 is located 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 of the present invention is described as the relative movement in a two-dimensional plane.

[0172] Indicates the opening angle of the door body 30. When the door body 30 is in a closed state, the opening angle of the door body 30 is recorded as the closing angle G G .

[0173] In some embodiments of the present application, The door front wall 31 is parallel to the plane where the access opening is located.

[0174] In some embodiments of the present application, The door rear wall 33 is perpendicular to the plane where the access opening is located.

[0175] In some embodiments of the present application, The door side wall 32 is parallel to the plane where the access opening is located.

[0176] The door body 30 is relative to the box body 10. Opening angle when opening to open the access opening is a positive number; the door body 30 is closed in the direction When the movement continues to further squeeze the door seal, the opening angle of the door body 30 becomes a negative number.

[0177] In some embodiments of the present application, G G =0°. That is, when the door body 30 is in the closed state, the opening angle It should be noted that the angle G at which the door body 30 is in the closed state is G Not affected by G G =0° limit.

[0178] In some embodiments of the present application, Figure 2-Figure 18 , Figure 28-Figure 41 As shown, the door body 30 is at a third direction angle G F3 Open to the fourth direction angle G F4During the process, the first shaft 41 moves toward the side close to the door front wall 31 and the door side wall 32, and the second shaft 42 moves toward the side away from the door front wall 31 and close to the door side wall 32; wherein, G F3 <90°<G F4 .

[0179] That is, when the door body 30 is opened to 90°, the first axis 41 moves relative to the guide portion 50 toward the side close to the door front wall 31 and the door side wall 32. The above arrangement, on the one hand, keeps the movement direction of the first axis 41 unchanged when the door body 30 is opened to about 90°, making the movement of the door body 30 smoother and more stable when it is opened to about 90°. On the other hand, the door body 30 has an inward displacement at about 90° when it is opened, so as to reduce the restriction of the storage cabinet 100 on the maximum opening angle of the door body 30 placed therein, increase the maximum opening angle of the door body 30 in the storage cabinet 100, and facilitate users to take and put items.

[0180] In some embodiments of the present application, when the door body 30 is opened to 90 degrees, the door front wall 31 is located on a side of the first body side wall close to the second body side wall.

[0181] In some embodiments of the present application, when the door body 30 is opened to 90°, the door front wall 31 is located on the side of the first body side wall close to the second body side wall, and the distance between the door front wall 31 and the first body side wall is not less than 4 mm.

[0182] In some embodiments of the present application, when the door body 30 is opened to 90°, the door front wall 31 is flush with the first body side wall. Wherein "flush" includes the situation where the distance between the two planes of the door front wall 31 and the first body side wall is not greater than 3 mm.

[0183] In some embodiments of the present application, G F4 -G F3 >0°. The above definition is the movement of the door body 30 during opening, G F4 Must be greater than G F3 , there is no G F4 <G F3 G F4 -G F3 >0°, door body 30 by G F3 Open to G F4 During the process, the first axis 41 moves toward the side close to the door front wall 31 and the door side wall 32, so that the door body 30 has an inward displacement during the opening process near 90°, so as to reduce the limitation of the space defined by the storage cabinet 100 on the maximum opening angle of the door body 30, so that the refrigerator door body 30 placed in the storage cabinet 100 can be opened to a larger angle.

[0184] In some embodiments of the present application, G F4 -G F3≤20°. G F4 -G F3 When the angle is greater than 20°, the displacement of the door body 30 inward within the opening range of 90° is too large, and the door body 30 blocks the access opening too much, making it inconvenient for users to access items. F4 -G F3 When the angle is ≤20°, the inward displacement of the door body 30 during the opening process near 90° can be controlled within a suitable range to control the amount of shielding of the door body 30 on the access opening.

[0185] In some embodiments of the present application, 0°<G F4 -G F3 ≤20°. The above definition is for the movement of the door body 30 during opening, G F4 Must be greater than G F3 , there is no G F4 <G F3 G F4 -G F3 When the angle is greater than 20°, the displacement of the door body 30 inward within the opening range of 90° is too large, and the door body 30 blocks the access opening too much, making it inconvenient for users to access items. F4 -G F3 When the angle is ≤20°, on the one hand, the inward displacement of the door body 30 during the opening process near 90° can be controlled within a suitable range to control the blocking amount of the access opening by the door body 30; on the other hand, the limitation of the maximum opening angle of the door body 30 by the space limited by the storage cabinet 100 is reduced, so that the refrigerator door body 30 placed in the storage cabinet 100 can be opened to a larger angle; the effects of both the blocking amount of the access opening by the door body 30 and the maximum opening angle of the door body 30 are combined.

[0186] See also Figures 2 to 18 In some embodiments of the present application, the guide trajectory line K extends from the side close to the door side wall 32 first to the side away from the door front wall 31 and the door side wall 32, then extends in the direction away from the door side wall 32 and close to the door front wall 31, and then extends to the side close to the door front wall 31 and the door side wall 32.

[0187] The guide track line K extends from its end away from the door side wall 32 first in a direction away from the door front wall 32 and the door side wall 31 , then in a direction away from the door front wall 31 and close to the door side wall 32 , and then in a direction close to the door front wall 31 and the door side wall 32 .

[0188] The guide track line K includes an initial guide segment, a first guide segment connected to an end of the initial guide segment away from the door side wall 32 , and a second guide segment connected to an end of the first guide segment away from the door side wall 32 .

[0189] The initial guide section extends from an end thereof close to the door side wall 32 in a direction away from the door front wall 31 and the door side wall 32. The first guide section extends from an end of the initial guide section away from the door side wall 32 in a direction close to the door front wall 31 and away from the door side wall 32. The second guide section extends from an end of the first guide section close to the door side wall 32 in a direction close to the door side wall 32 and the door front wall 31.

[0190] See also Figures 2 to 18 In some embodiments of the present application, in the projection of the top wall of the box body 10, the second center axis Q is located on the side of the first center axis P away from the first body side wall and the access port, and the angle between the second center axis Q and the straight line QP where the first center axis P is located and the first body side wall is recorded as β.

[0191] β is not less than a first reference value. The first reference value is between 60° and 70°. The first reference value may be 60°, 65° or 70°. That is, β≥60° or β≥65° or β≥70°.

[0192] When β≥60°, the guide portion 50 and the guide portion 60 occupy a small thickness of the door body 30. When β≥65°, the guide portion 50 and the guide portion 60 occupy a small thickness of the door body 30. When β≥70°, the guide portion 50 and the guide portion 60 occupy a small thickness of the door body 30.

[0193] β is not greater than a second reference value. The second reference value is between 75° and 85°. The second reference value may be 75°, 80° or 85°. That is, β≤75° or β≤80° or β≤85°.

[0194] When β≤75°, the strength requirements of the guide parts 50 and 60, the first shaft 41 and the second shaft 42 are better met. When β≤80°, the strength requirements of the guide parts 50 and 60, the first shaft 41 and the second shaft 42 are better met. When β≤85°, the strength requirements of the guide parts 50 and 60, the first shaft 41 and the second shaft 42 are met.

[0195] β is too small, and the distance between the first center axis P and the second center axis Q in the direction perpendicular to the door front wall 31 is too large; the guide part 50 cooperating with the first axis 41 and the guide part 42 cooperating with the second axis 42 occupy an increased dimension in the thickness direction of the door body 30, resulting in an increase in the thickness of the door body 30, which is not suitable for an ultra-thin door body 30.

[0196] β is too large, and the distance between the first center axis P and the second center axis Q in the direction perpendicular to the front wall 31 of the door is too small; the guide portion 50 and the guide portion 60 are arranged too compactly. In order to avoid the guide portion 60 of the guide portion 50 not being cross-connected, as a way, the track width of the guide portion 50 that cooperates with the first shaft 41 and the guide portion 60 that cooperates with the second shaft 42 can be reduced, and the diameter of the first shaft 41 and the second shaft 42 needs to be reduced accordingly. Reducing the diameter of the first shaft 41 and the second shaft 42 reduces the strength of the first shaft 41 and the second shaft 42, which can easily cause the hinge assembly to be damaged and fail. As another way, the diameter of the first shaft 41 and the second shaft 42 is ensured to ensure their strength, and the minimum distance (minimum wall thickness) between the guide portion 50 and the guide portion 60 will be reduced, resulting in a reduction in the strength of the guide portion 50 and the guide portion 60.

[0197] In some embodiments of the present application, the guide portion 50 is configured as a guide groove, and the guide portion 60 is configured as a guide groove.

[0198] In some embodiments of the present application, the guide groove is a curved groove or a straight groove. The guide groove is a curved groove. The guide groove is located on a side of the guide groove close to the first side edge W.

[0199] In some embodiments of the present application, when the guide groove is configured as a curved groove, the guide groove protrudes toward the side close to the second side edge N.

[0200] In some embodiments of the present application, Figure 2 As shown, in the projection of the plane where the top wall of the box body 10 (door body 30) is located, the door side wall 32 is the Y axis, and the plane passing through the first side edge W and perpendicular to the door side wall 32 is the X axis, that is, the plane where the door front wall 31 is located is the X axis (it can be set that the door front wall 31 is perpendicular to the door side wall 32); wherein, the X axis is perpendicular to the Y axis and intersects at the origin O (the first side edge W). The direction from the door front wall 31 to the door rear wall 33 is the positive direction of the Y axis, and the direction from the door side wall 32 to the opposite end of the door side wall 32 on the door body 30 is the positive direction of the X axis, forming a two-dimensional door body coordinate system XOY. It should be noted that the door body coordinate system XOY is a two-dimensional coordinate system that is stationary relative to the door body 30.

[0201] In the door body coordinate system XOY, the function corresponding to the guide trajectory line S in the coordinate system XOY is recorded as Y=F(X).

[0202] The first derivative of Y = F(X) is denoted by F` x , F` x > 0. Y = F (X) is a monotonically increasing function.

[0203] In some embodiments of the present application, the second-order derivative of Y=F(X) is denoted as F`` x , F`` x= 0. Y = F (X) is a linear function.

[0204] In some embodiments of the present application, the second-order derivative of Y=F(X) is denoted as F`` x , F`` x > 0. Y = F (X) is a convex function.

[0205] like Figure 2-Figure 3 and Fig.12 As shown, under the constraints of the guide portion 50 and the first shaft 41, the guide portion 60 and the second shaft 42, the opening process of the door body 30 has a first stage. The first stage is as follows:

[0206] In some embodiments of the present application, the guide trajectory line S has a first guide point P1 and a second guide point P2 which are sequentially close to the door side wall 32 .

[0207] The first guide point P1 and the second guide point P2 are sequentially away from the door front wall 31. That is, the distances between the first guide point P1 and the second guide point P2 and the door front wall 31 are sequentially increased.

[0208] The guide track line S extends from the first guide point P1 to a side away from the door side wall 32 to a second guide point P2.

[0209] The guide track line S extends from the first guide point P1 to a side away from the door front wall 31 to a second guide point P2.

[0210] The guide track line S extends from the first guide point P1 to a second guide point P2 in a direction away from the door side wall 32 and the door front wall 31 .

[0211] In some embodiments of the present application, the guide track line K has a first guide point Q1 and a second guide point Q2 which are respectively away from the door side wall 32 .

[0212] The first guide point Q1 and the second guide point Q2 are sequentially away from the door front wall 31. That is, the distances between the first guide point Q1 and the second guide point Q2 and the door front wall 31 are sequentially increased.

[0213] The guide track line K extends from the first guide point Q1 to a side away from the door side wall 32 to a second guide point Q2.

[0214] The guide track line K extends from the first guide point Q1 to a side away from the door front wall 31 to a second guide point Q2.

[0215] The guide track line K extends from the first guide point Q1 to a second guide point Q2 in a direction away from the door side wall 32 and the door front wall 31 .

[0216] When the door body 30 is opened from the first angle G1 to the second angle G2 , the first central axis P moves toward a side away from the door front wall 31 and the door side wall 32 .

[0217] When the door body 30 is opened from the first angle G1 to the second angle G2, the second central axis Q moves toward a side away from the door front wall 31 and the door side wall 32. The first angle G1 is smaller than the second angle G2.

[0218] When the door body 30 is opened from the first angle G1 to the second angle G2, the first central axis P moves from the first guiding point P1 to the second guiding point P2.

[0219] When the door body 30 is opened from the first angle G1 to the second angle G2, the second central axis Q moves from the first guide point Q1 to the second guide point Q2.

[0220] In some embodiments of the present application, the first angle G1 is less than the second angle G2.

[0221] In some embodiments of the present application, when the door body 30 opens from the first angle G1 to the second angle G2, the center point I of the axis moves from the first center point I1 to the side away from the door front wall 31 and the door side wall 32 to the second center point I2.

[0222] When the door body 30 is opened from the first angle G1 to the second angle G2 , the center point I of the axis moves toward a side away from the door front wall 31 and the door side wall 32 .

[0223] During the first stage of opening, the door body 30 opens at an angle of When , the first central axis P is located at the first guiding point P1 of the guiding trajectory line S, the second central axis Q is located at the first guiding point Q1 of the guiding trajectory line K, and the center point of the axis is located at the first midpoint I1.

[0224] Door body 30 opening angle When , the first central axis P is located at the second guide point P2 of the guide trajectory line S, the second central axis Q is located at the second guide point Q2 of the guide trajectory line K, and the center point of the axis is located at the second midpoint I2.

[0225] In some embodiments of the present application, G G =G1.

[0226] In some implementations of the present application, the first angle G1 = 0°.

[0227] In some embodiments of the present application, G G = G1 = 0°. At this time, when the opening angle of the door body 30 is the first angle G1 = 0°, the door body 30 is in a closed state.

[0228] The first stage is the process of the door body 30 opening from the first angle G1 to the second angle G2. G =G1 or G G= G1 = 0°) to a second angle G2. In this process, the first central axis P moves away from the door front wall 31 and the door side wall 32; the second central axis Q moves away from the door front wall 31 and the door side wall 32.

[0229] Specifically, the first central axis P moves from the first guiding point P1 to the second guiding point P2 along the guiding trajectory line S; the second central axis Q moves from the first guiding point Q1 to the second guiding point Q2 along the guiding trajectory line K.

[0230] In the above first stage of opening process, the second hinge member (guide portion 50 / guide portion 60 / door body 30) is used as a reference for description.

[0231] The door body 30 is at a first angle G1 (configurable, G G =G1 or G G = G1 = 0°) to the second angle G2, the axis line segment PQ rotates clockwise from P1Q1 and moves to P2Q2; that is, the movement trend of the axis line segment PQ is P1Q1→P2Q2. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I1→I2. That is, during the opening process of the door body 30, relative to the door body 30, the axis center point I moves to the side away from the door front wall 31 and the door side wall 32.

[0232] Since the guide part 50 and the guide 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. It is concluded that: taking the door body 30 as a reference, the door body 30 is moved from the first angle G1 (which can be set, G G =G1 or G G During the whole process of opening the door from the front door 31 to the second angle G2 (ie, from the front door 31 to the side door 32), the box body 10 (ie, the hinge plate 40) keeps rotating clockwise relative to the door body 30 and moves a certain distance to the side away from the door front wall 31 and the door side wall 32.

[0233] In summary, the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to the second angle G2, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0234] According to the relativity of the movement, taking the box 10 as a reference, the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G= G1 = 0°) to the second angle G2, the door body 30 has a translational movement while rotating. The translational movement is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and toward the door side wall 32 and a displacement parallel to the door side wall 33 and toward the door front wall 31.

[0235] like Figure 3-Figure 5 and Fig.13 As shown, under the constraints of the guide portion 50 and the first shaft 41, the guide portion 60 and the second shaft 42, the opening process of the door body 30 has a second stage. The second stage is as follows:

[0236] In some embodiments of the present application, the guide trajectory line S has a third guide point P3 and a fourth guide point P4 which are successively close to the door side wall 32 .

[0237] The second guiding point P2 , the third guiding point P3 , and the fourth guiding point P4 are respectively close to the door side wall 32 .

[0238] The second guide point P2, the third guide point P3, and the fourth guide point P4 are successively close to the door front wall 31. That is, the distances between the second guide point P2, the third guide point P3, and the fourth guide point P4 and the door front wall 31 are successively reduced.

[0239] The guide track line S extends from the second guide point P2 to a side close to the door side wall 32 to a fourth guide point P4.

[0240] The guide track line S extends from the second guide point P2 to a side close to the door front wall 31 to a fourth guide point P4.

[0241] The guide trajectory line S extends from the second guide point P2 through the third guide point P3 to the fourth guide point P4.

[0242] In some embodiments of the present application, the fourth guiding point P4 is located on a side of the first guiding point P1 close to the door side wall 32 and the door front wall 31 .

[0243] In some embodiments of the present application, the guide trajectory line K has a third guide point Q3 and a fourth guide point Q4.

[0244] The second guide point Q2 , the third guide point Q3 , and the fourth guide point Q4 are respectively away from the door side wall 32 .

[0245] The second guide point Q2, the third guide point Q3, and the fourth guide point Q4 are sequentially away from the door front wall 31. That is, the distances between the second guide point Q2, the third guide point Q3, and the fourth guide point Q4 and the door front wall 31 are sequentially increased.

[0246] The guide track line K extends from the second guide point Q2 to a side away from the door side wall 32 to a fourth guide point Q4.

[0247] The guide track line K extends from the second guide point Q2 to a side away from the door front wall 31 to a fourth guide point Q4.

[0248] The guide trajectory line K extends from the second guide point Q2 through the third guide point Q3 to the fourth guide point Q4.

[0249] When the door body 30 is opened from the second angle G2 to the fourth angle G4 , the first central axis P moves toward a side close to the door front wall 31 and the door side wall 32 .

[0250] When the door body 30 is opened from the second angle G2 to the fourth angle G4, the second central axis Q moves toward a side away from the door front wall 31 and the door side wall 32. The second angle G2 is less than the fourth angle G4.

[0251] When the door body 30 is opened from the second angle G2 to the fourth angle G4, the first central axis P moves from the second guiding point P2 to the fourth guiding point P4 via the third guiding point P3.

[0252] When the door body 30 is opened from the second angle G2 to the fourth angle G4, the second central axis Q moves from the second guide point Q2 to the fourth guide point Q4 via the third guide point Q3.

[0253] In some embodiments of the present application, when the door body 30 opens from the second angle G2 to the third angle G3, the center point I of the axis moves from the second center point I2 to the side away from the door front wall 31 and the door side wall 32 to the third center point I3.

[0254] When the door body 30 is opened from the third angle G3 to the fourth angle G4, the center point I of the axis moves from the third center point I3 to the side away from the door front wall 31 and close to the door side wall 32 to the fourth center point I4.

[0255] When the door body 30 is opened from the second angle G2 to the fourth angle G4, the center point I of the axis moves from the second center point I2 to the fourth center point I4 via the third center point I3.

[0256] When the door body 30 is opened from the second angle G2 to the fourth angle G4, the center point I of the axis first moves to the side away from the door front wall 31 and the door side wall 32, and then moves to the side away from the door front wall 31 and close to the door side wall 32.

[0257] In some embodiments of the present application, the second angle G2 is less than the third angle G3 and less than the fourth angle G4.

[0258] During the second stage of opening, the door 30 opens at an angle of When , the first central axis P is located at the second guide point P2 of the guide trajectory line S, the second central axis Q is located at the second guide point Q2 of the guide trajectory line K, and the center point of the axis is located at the second midpoint I2.

[0259] Door body 30 opening angle When , the first central axis P is located at the third guide point P3 of the guide trajectory line S, the second central axis Q is located at the third guide point Q3 of the guide trajectory line K, and the center point of the axis is located at the third midpoint I3.

[0260] Door body 30 opening angle When , the first central axis P is located at the fourth guide point P4 of the guide trajectory line S, the second central axis Q is located at the fourth guide point Q4 of the guide trajectory line K, and the center point of the axis is located at the fourth midpoint I4.

[0261] The second stage is the process of the door body 30 opening from the second angle G2 to the fourth angle G4. The door body 30 opens from the second angle G2 to G4 via G3. In this process, the first central axis P moves toward the side close to the door front wall 31 and the door side wall 32. The second central axis Q moves toward the side away from the door front wall 31 and the door side wall 32.

[0262] Specifically, the first central axis P moves from the second guide point P2 along the guide track line S through the third guide point P3 to the fourth guide point P4. The second central axis Q moves from the second guide point Q2 along the guide track line K through the third guide point Q3 to the fourth guide point Q4.

[0263] In the above first stage of opening process, the second hinge member (guide portion 50 / guide portion 60 / door body 30) is used as a reference for description.

[0264] When the door body 30 is opened from the second angle G2 to the fourth angle G4, the axis line segment PQ rotates clockwise from P2Q2 and moves to P2Q2 and P4Q4 in sequence. That is, the movement trend of the axis line segment PQ is P2Q2→P3Q3→P4Q4. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I2→I3→I4. When the door body 30 is opened from the second angle G2 to the fourth angle G4, relative to the door body 30, the axis center point I first moves to the side away from the door front wall 31 and the door side wall 32, and then moves to the side away from the door front wall 31 and close to the door side wall 32.

[0265] Since the guide part 50 and the guide 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. It is concluded that: taking the door body 30 as a reference, during the whole process of the door body 30 opening from the second angle G2 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 first moves a certain distance to the side away from the door front wall 31 and the door side wall 32, and then moves a certain distance to the side away from the door front wall 31 and close to the door side wall 32.

[0266] In summary, when the door body 30 is opened from the second angle G2 to the third angle G3, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 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 33 and pointing to the side away from the door front wall 31.

[0267] When the door body 30 is opened from the third angle G3 to the fourth angle G4, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 performs a translational motion while performing a rotational motion relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32, and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0268] According to the relativity of motion, taking the box body 10 as a reference, when the door body 30 is opened from the second angle G2 to the third angle G3, the door body 30 has a translational motion while rotating. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the door front wall 31.

[0269] When the door body 30 is opened from the third angle G3 to the fourth angle G4, the door body 30 has a translational motion while rotating. The translational motion is as follows: relative to the door body 30, the box body 10 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 33 and pointing to the door front wall 31.

[0270] like Figure 5-Figure 6 and Fig.14 As shown, under the constraints of the guide portion 50 and the first shaft 41, the guide portion 60 and the second shaft 42, the opening process of the door body 30 has a third stage. The third stage is as follows:

[0271] In some embodiments of the present application, the guide trajectory line S has a fifth guide point P5.

[0272] The fourth guiding point P4 and the fifth guiding point P5 are respectively close to the door side wall 32 .

[0273] The fourth guide point P4 and the fifth guide point P5 are successively closer to the door front wall 31. That is, the distances between the fourth guide point P4 and the fifth guide point P5 and the door front wall 31 are successively reduced.

[0274] The guide track line S extends from the fourth guide point P4 to the side close to the door side wall 32 to the fifth guide point P5.

[0275] The guide track line S extends from the fourth guide point P4 to a side close to the door front wall 31 to a fifth guide point P5.

[0276] The guide trajectory line S extends from the fourth guide point P4 to a side close to the door side wall 3 and the door front wall 31 to a fifth guide point P5.

[0277] In some embodiments of the present application, there is a fifth guiding point Q5 on the guiding trajectory line K.

[0278] The fourth guide point Q4 and the fifth guide point Q5 are respectively close to the door side wall 32 .

[0279] The fourth guide point Q4 and the fifth guide point Q5 are sequentially away from the door front wall 31. That is, the distances between the fourth guide point Q4 and the fifth guide point Q5 and the door front wall 31 are sequentially increased.

[0280] The guide track line K extends from the fourth guide point Q4 to the side close to the door side wall 32 to the fifth guide point Q5.

[0281] The guide track line K extends from the fourth guide point Q4 to a side away from the door front wall 31 to a fifth guide point Q5.

[0282] The guide track line K extends from the fourth guide point Q4 to a side close to the door side wall 32 and the door front wall 31 to a fifth guide point Q5.

[0283] In some embodiments of the present application, the guide trajectory line S is a straight line, and the fifth guide point Q5 is located on the straight line where the guide trajectory line S is located. That is, the straight line where the fifth guide point P5 and the fifth guide point Q5 are located is collinear with the guide trajectory line S.

[0284] When the door body 30 is opened from the fourth angle G4 to the fifth angle G5 , the first central axis P moves toward a side close to the door front wall 31 and the door side wall 32 .

[0285] When the door body 30 is opened from the fourth angle G4 to the fifth angle G5, the second central axis Q moves away from the door front wall 31 and closer to the door side wall 32. The fourth angle G4 is smaller than the fifth angle G5.

[0286] When the door body 30 is opened from the fourth angle G4 to the fifth angle G5, the first central axis P moves from the fourth guiding point P4 to the fifth guiding point P5.

[0287] When the door body 30 is opened from the fourth angle G4 to the fifth angle G5, the second central axis Q moves from the fourth guide point Q4 to the fifth guide point Q5.

[0288] In some embodiments of the present application, the fourth angle G4 is less than the fifth angle G5.

[0289] In some embodiments of the present application, during the process of the door body 30 opening from the fourth angle G4 to the fifth angle G5, the center point I of the axis moves from the fourth center point I4 to the side close to the door front wall 31 and the door side wall 32 to the fifth center point I5.

[0290] When the door body 30 is opened from the fourth angle G4 to the fifth angle G5, the center point I of the axis moves from the fourth center point I4 to the fifth center point I5.

[0291] When the door body 30 is opened from the fourth angle G4 to the fifth angle G5 , the center point I of the axis moves away from the door front wall 31 and closer to the door side wall 32 .

[0292] In the third stage of opening, the door body 30 opens at an angle of When , the first central axis P is located at the fourth guide point P4 of the guide trajectory line S, the second central axis Q is located at the fourth guide point Q4 of the guide trajectory line K, and the center point of the axis is located at the fourth midpoint I4.

[0293] Door body 30 opening angle When , the first central axis P is located at the fifth guide point P5 of the guide trajectory line S, the second central axis Q is located at the fifth guide point Q5 of the guide trajectory line K, and the center point of the axis is located at the fifth midpoint I5.

[0294] The third stage is the process of the door body 30 opening from the fourth angle G4 to the fifth angle G5. The door body 30 opens from the fourth angle G4 to G5. In this process, the first central axis P moves toward the side close to the door front wall 31 and the door side wall 32; the second central axis Q moves away from the door front wall 31 and close to the door side wall 32.

[0295] Specifically, the first central axis P moves from the fourth guide point P4 along the guide trajectory line S to the fifth guide point P5; the second central axis Q moves from the fourth guide point Q4 along the guide trajectory line K to the fifth guide point Q5.

[0296] In the above third stage of opening process, the second hinge member (guide portion 50 / guide portion 60 / door body 30) is used as a reference for description.

[0297] When the door body 30 is opened from the fourth angle G4 to the fifth angle G5, the axis line segment PQ rotates clockwise from P4Q4 and moves to P5Q5; that is, the movement trend of the axis line segment PQ is P4Q4→P5Q5. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I4→I5. That is, when the door body 30 is opened, relative to the door body 30, the axis center point I moves away from the door front wall 31 and closer to the door side wall 32.

[0298] Since the guide portion 50 and the guide portion 60 are disposed on the door body 30, the axis line segment PQ represents the movement of the hinge plate 40 disposed on the box body 10. It is concluded that: taking the door body 30 as a reference, during the entire process of the door body 30 opening from the fourth angle G4 to the fifth angle G5, 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 to the side away from the door front wall 31 and close to the door side wall 32.

[0299] In summary, when the door body 30 is opened from the fourth angle G4 to the fifth angle G5, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0300] According to the relativity of motion, taking the box body 10 as a reference, when the door body 30 is opened from the fourth angle G4 to the fifth angle G5, the door body 30 has a translational motion while performing a rotational motion. The translational motion is specifically: relative to the door body 30, the box body 10 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 33 and pointing to the door front wall 31.

[0301] like Figure 6-Figure 7 and Fig.15 As shown, under the constraints of the guide portion 50 and the first shaft 41, the guide portion 60 and the second shaft 42, the opening process of the door body 30 has a fourth stage. The fourth stage is as follows:

[0302] In some embodiments of the present application, the guide trajectory line S has a sixth guide point P6.

[0303] The fifth guiding point P5 and the sixth guiding point P6 are respectively close to the door side wall 32 .

[0304] The guide track line S extends from the fifth guide point P5 to a side away from the door side wall 32 to a sixth guide point P6.

[0305] The guide track line S extends from the fifth guide point P5 to a side away from the door front wall 31 to a sixth guide point P6.

[0306] The guide trajectory line S extends from the fifth guide point P5 to a side away from the door side wall 32 and the door front wall 31 to a sixth guide point P6.

[0307] In some embodiments of the present application, the sixth guiding point P6 is located on a side of the second guiding point P2 close to the door side wall 32 .

[0308] Then, the fifth guiding point P5 , the sixth guiding point P6 , and the second guiding point P2 are sequentially away from the door side wall 32 .

[0309] In some embodiments of the present application, the sixth guiding point P6 is located on a side of the second guiding point P2 close to the door front wall 31 .

[0310] Then, the fifth guiding point P5, the sixth guiding point P6, and the second guiding point P2 are sequentially away from the door front wall 31. That is, the distances between the fifth guiding point P5, the sixth guiding point P6, and the second guiding point P2 and the door front wall 31 are sequentially increased.

[0311] The guide track line S extends from the fifth guide point P5 to a side away from the door side wall 32 to the second guide point P2.

[0312] The guide track line S extends from the fifth guide point P5 to a side away from the door front wall 31 to the second guide point P2.

[0313] The guide trajectory line S extends from the fifth guide point P5 to the second guide point P2 via the sixth guide point P6.

[0314] In some embodiments of the present application, a sixth guide point Q6 is provided on the guide track line K. The fifth guide point Q5 and the sixth guide point Q6 are respectively close to the door side wall 32 .

[0315] Among them, the fourth guide point Q4, the fifth guide point Q5, and the sixth guide point Q6 are close to the door side wall 32 in sequence.

[0316] The fifth guide point Q5 and the sixth guide point Q6 are successively away from the door front wall 31. That is, the distances between the fifth guide point Q5 and the sixth guide point Q6 and the door front wall 31 are successively increased.

[0317] The guide track line K extends from the fifth guide point Q5 to the side close to the door side wall 32 to the sixth guide point Q6.

[0318] The guide track line K extends from the fifth guide point Q5 to a side away from the door front wall 31 to a sixth guide point Q6.

[0319] The guide track line K extends from the fifth guide point Q5 to a side close to the door side wall 32 and away from the door front wall 31 to a sixth guide point Q6.

[0320] When the door body 30 is opened from the fifth angle G5 to the sixth angle G6 , the first central axis P moves toward a side away from the door front wall 31 and the door side wall 32 .

[0321] When the door body 30 is opened from the fifth angle G5 to the sixth angle G6, the second central axis Q moves away from the door front wall 31 and closer to the door side wall 32. The fifth angle G5 is smaller than the sixth angle G6.

[0322] When the door body 30 is opened from the fifth angle G5 to the sixth angle G6, the first central axis P moves from the fifth guiding point P5 to the sixth guiding point P6.

[0323] When the door body 30 is opened from the fifth angle G5 to the sixth angle G6, the second central axis Q moves from the fifth guide point Q5 to the sixth guide point Q6.

[0324] In some embodiments of the present application, during the process of the door body 30 opening from the fifth angle G5 to the sixth angle G6, the center point I of the axis moves from the fifth center point I5 to the side away from the door front wall 31 and close to the door side wall 32 to the sixth center point I6.

[0325] When the door body 30 is opened from the fifth angle G5 to the sixth angle G6, the center point I of the axis moves away from the door front wall 31 and closer to the door side wall 32.

[0326] In the fourth stage of opening, the door body 30 opens at an angle of When , the first central axis P is located at the fifth guide point P5 of the guide trajectory line S, the second central axis Q is located at the fifth guide point Q5 of the guide trajectory line K, and the center point of the axis is located at the fifth midpoint I5.

[0327] Door body 30 opening angle When , the first central axis P is located at the sixth guide point P6 of the guide trajectory line S, the second central axis Q is located at the sixth guide point Q6 of the guide trajectory line K, and the midpoint of the axis is located at the sixth midpoint I6.

[0328] The fourth stage is the process of the door body 30 opening from the fifth angle G5 to the sixth angle G6. The door body 30 opens from the fifth angle G5 to the sixth angle G6. In this process, the first central axis P moves away from the door front wall 31 and the door side wall 32. The second central axis Q moves away from the door front wall 31 and close to the door side wall 32.

[0329] Specifically, when the door body 30 is opened from the fifth angle G5 to the sixth angle G6, the first central axis P moves from the fifth guide point P5 to the sixth guide point P6 along the guide track line S. The second central axis Q moves from the fifth guide point Q5 to the sixth guide point Q6 along the guide track line K.

[0330] The opening process in the fourth stage is described with reference to the second hinge member (the guide portion 50 / the guide portion 60 / the door body 30 ).

[0331] When the door body 30 is opened from the fifth angle G5 to the sixth angle G6, the axis line segment PQ rotates clockwise from P5Q5 and moves to P6Q6; that is, the movement trend of the axis line segment PQ is P5Q5→P6Q6. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I5→I6. That is, during the opening process of the door body 30, relative to the door body 30, the axis center point I moves away from the door front wall 31 and closer to the door side wall 32.

[0332] Since the guide portion 50 and the guide portion 60 are disposed on the door body 30, the axis line segment PQ represents the movement of the hinge plate 40 disposed on the box body 10. It is concluded that: taking the door body 30 as a reference, during the entire process of the door body 30 opening from the fifth angle G5 to the sixth angle G6, 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 to the side away from the door front wall 31 and close to the door side wall 32.

[0333] In summary, when the door body 30 is opened from the fifth angle G5 to the sixth angle G6, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0334] According to the relativity of motion, taking the box body 10 as a reference, when the door body 30 is opened from the fifth angle G5 to the sixth angle G6, the door body 30 has a translational motion while performing a rotational motion. The translational motion is specifically: relative to the door body 30, the box body 10 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 33 and pointing to the door front wall 31.

[0335] like Figure 7-Figure 10 and Fig.16 As shown, under the constraints of the guide portion 50 and the first shaft 41, the guide portion 60 and the second shaft 42, the opening process of the door body 30 has a fifth stage. The fifth stage is as follows:

[0336] In some embodiments of the present application, the guide trajectory line S has a seventh guide point P7, an eighth guide point P8, and a ninth guide point P9 which are sequentially close to the door side wall 32.

[0337] The sixth guiding point P6, the seventh guiding point P7, the eighth guiding point P8 and the ninth guiding point P9 are respectively close to the door side wall 32. The sixth guiding point P6, the seventh guiding point P7, the eighth guiding point P8 and the ninth guiding point P9 are respectively close to the door front wall 31.

[0338] According to the relative position relationship between the second guide point P2 and the sixth guide point P6 , the second guide point P2 , the sixth guide point P6 , the seventh guide point P7 , the eighth guide point P8 , and the ninth guide point P9 are sequentially close to the door side wall 32 .

[0339] The second guide point P2, the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, and the ninth guide point P9 are successively closer to the door front wall 31. That is, the distances between the second guide point P2, the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, and the ninth guide point P9 and the door front wall 31 are successively reduced.

[0340] The guide track line S extends from the sixth guide point P6 to a side close to the door side wall 32 to a ninth guide point P9.

[0341] The guide track line S extends from the sixth guide point P6 to a side close to the door front wall 31 to a ninth guide point P9.

[0342] The guide trajectory line S extends from the sixth guide point P6 to the ninth guide point P9 through the seventh guide point P7 and the eighth guide point P8 in sequence.

[0343] In some embodiments of the present application, the guide track line K has a seventh guide point Q7, an eighth guide point Q8, and a ninth guide point Q9 which are successively close to the door side wall 32.

[0344] Among them, the sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, and the ninth guide point Q9 are close to the door side wall 32 in sequence.

[0345] The sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, and the ninth guide point Q9 are sequentially away from the door front wall 31. That is, the distances between the sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, and the ninth guide point Q9 and the door front wall 31 increase sequentially.

[0346] The guide track line K extends from the sixth guide point Q6 to the side close to the door side wall 32 to the ninth guide point Q9.

[0347] The guide track line K extends from the sixth guide point Q6 to a side away from the door front wall 31 to a ninth guide point Q9.

[0348] The guide trajectory line K extends from the sixth guide point Q6 to the ninth guide point Q9 through the seventh guide point Q7 and the eighth guide point Q8 in sequence.

[0349] According to the relative position relationship of the aforementioned guide points, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, and the ninth guide point Q9 are respectively close to the door side wall 32.

[0350] The fourth guide point Q4 , the fifth guide point Q5 , the sixth guide point Q6 , the seventh guide point Q7 , the eighth guide point Q8 , and the ninth guide point Q9 are respectively away from the door front wall 31 .

[0351] When the door body 30 is opened from the sixth angle G6 to the ninth angle G9 , the first central axis P moves toward a side close to the door front wall 31 and the door side wall 32 .

[0352] When the door body 30 is opened from the sixth angle G6 to the ninth angle G9, the second central axis Q moves away from the door front wall 31 and closer to the door side wall 32. The sixth angle G6 is less than the ninth angle G9.

[0353] When the door body 30 is opened from the sixth angle G6 to the ninth angle G9, the first central axis P moves from the sixth guiding point P6 to the ninth guiding point P9 via the seventh guiding point P7 and the eighth guiding point P8 in sequence.

[0354] When the door body 30 is opened from the sixth angle G6 to the ninth angle G9, the second central axis Q moves from the sixth guide point Q6 to the ninth guide point Q9 via the seventh guide point Q7 and the eighth guide point P8 in sequence.

[0355] In some embodiments of the present application, when the door body 30 is opened from the sixth angle G6 to the eighth angle G8, the axis center point I moves from the sixth center point I6 to the side away from the door front wall 31 and close to the door side wall 32 to the eighth center point I8. The sixth angle G6 is less than the eighth angle G8.

[0356] When the door body 30 is opened from the eighth angle G8 to the ninth angle G9, the center point I of the axis moves from the eighth center point I8 to the side close to the door front wall 31 and the door side wall 32 to the ninth center point I9. The eighth angle G8 is less than the ninth angle G9.

[0357] When the door body 30 is opened from the sixth angle G6 to the ninth angle G9, the center point I of the axis moves from the sixth center point I6 to the ninth center point I9 via the seventh center point I7 and the eighth center point I8 in sequence.

[0358] When the door body 30 opens from the sixth angle G6 to the ninth angle G9, the center point I of the axis first moves away from the door front wall 31 and close to the door side wall 32, and then moves to the side close to the door front wall 31 and the door side wall 32.

[0359] Among them, the sixth angle G6<seventh angle G7<eighth angle G8<ninth angle G9.

[0360] In the fifth stage of opening, the door body 30 opens at an angle of When , the first central axis P is located at the sixth guide point P6 of the guide trajectory line S, the second central axis Q is located at the sixth guide point Q6 of the guide trajectory line K, and the midpoint of the axis is located at the sixth midpoint I6.

[0361] Door body 30 opening angle When , the first central axis P is located at the seventh guide point P7 of the guide trajectory line S, the second central axis Q is located at the seventh guide point Q7 of the guide trajectory line K, and the center point of the axis is located at the seventh midpoint I7.

[0362] Door body 30 opening angle When , the first central axis P is located at the eighth guide point P8 of the guide trajectory line S, the second central axis Q is located at the eighth guide point Q8 of the guide trajectory line K, and the center point of the axis is located at the eighth midpoint I8.

[0363] Door body 30 opening angle When , the first central axis P is located at the ninth guide point P9 of the guide trajectory line S, the second central axis Q is located at the ninth guide point Q9 of the guide trajectory line K, and the center point of the axis is located at the ninth midpoint I9.

[0364] In some embodiments of the present application, G7=90°.

[0365] In some embodiments of the present application, when the door body 30 is opened to 90°, the door front wall 31 is located on the side of the first body side wall close to the second body side wall, and the distance between the door front wall 31 and the first body side wall is not less than 4 mm.

[0366] The fifth stage is the process of the door body 30 opening from the sixth angle G6 to the ninth angle G9. The door body 30 opens from the sixth angle G6 to G9 through G7 and G8 in sequence. In this process, the first central axis P moves toward the side close to the door front wall 31 and the door side wall 32, and the second central axis Q moves away from the door front wall 31 and close to the door side wall 32.

[0367] Specifically, when the door body 30 is opened from the sixth angle G6 to the ninth angle G9, the first central axis P moves from the sixth guide point P6 along the guide trajectory line S to the ninth guide point P9 via the seventh guide point P7 and the eighth guide point P8. The second central axis Q moves from the sixth guide point Q6 along the guide trajectory line K to the ninth guide point Q9 via the seventh guide point Q7 and the eighth guide point Q8.

[0368] The opening process in the fifth stage is described with reference to the second hinge member (the guide portion 50 / the guide portion 60 / the door body 30 ).

[0369] When the door body 30 is opened from the sixth angle G6 to the ninth angle G9, the axis line segment PQ rotates clockwise from P6Q6 and moves to P7Q7, P8Q8, and P9Q9 in sequence; that is, the movement trend of the axis line segment PQ is P6Q6→P7Q7→P8Q8→P9Q9. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I6→I7→I8→I9. That is, when the door body 30 is opened, relative to the door body 30, the axis center point I first moves to the side away from the door front wall 31 and close to the door side wall 32, and then moves to the side close to the door front wall 31 and the door side wall 32.

[0370] Since the guide part 50 and the guide 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. It is concluded that: taking the door body 30 as a reference, during the entire process of the door body 30 opening from the sixth angle G6 to the ninth angle G9, the box body 10 (i.e., the hinge plate 40) keeps rotating clockwise relative to the door body 30 to open, and first moves a certain distance to the side away from the door front wall 31 and close to the door side wall 32, and then moves a certain distance to the side close to the door front wall 31 and the door side wall 32.

[0371] In summary, when the door body 30 is opened from the sixth angle G6 to the eighth angle G8, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0372] When the door body 30 is opened from the eighth angle G8 to the ninth angle G9, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 performs a translational motion while performing a rotational motion relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32, and a displacement parallel to the door side wall 33 and pointing to the door front wall 31.

[0373] According to the relativity of motion, taking the box body 10 as a reference, when the door body 30 is opened from the sixth angle G6 to the eighth angle G8, the door body 30 has a translational motion while performing a rotational motion. The translational motion is specifically: relative to the door body 30, the box body 10 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 33 and pointing to the door front wall 31.

[0374] When the door body 30 is opened from the eighth angle G8 to the ninth angle G9, the door body 30 has a translational motion while rotating. The translational motion is as follows: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0375] like Figure 10-11 and Fig.17 As shown, under the constraints of the guide portion 50 and the first shaft 41, the guide portion 60 and the second shaft 42, the opening process of the door body 30 has a sixth stage. The sixth stage is as follows:

[0376] In some embodiments of the present application, the guiding trajectory line S has a tenth guiding point P 10 .

[0377] Among them, the ninth guiding point P9 and the tenth guiding point P 10 The ninth guiding point P9 and the tenth guiding point P 10 Approach the door front wall 31 in sequence.

[0378] The guide track line S extends from the ninth guide point P9 to the side close to the door side wall 32 to the tenth guide point P 10 .

[0379] The guide track line S extends from the ninth guide point P9 to the side close to the door front wall 31 to the tenth guide point P 10 .

[0380] According to the relative position relationship of the second guide point P2, the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, and the ninth guide point P9, the second guide point P2, the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, the ninth guide point P9, and the tenth guide point P 10 The doors are then approached to the side walls 32 in sequence.

[0381] The second guide point P2, the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, the ninth guide point P9, the tenth guide point P 10 The second guide point P2, the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, the ninth guide point P9, the tenth guide point P 10 The distances between each of them and the door front wall 31 decrease successively.

[0382] The guide track line S extends from the second guide point P2 to the side close to the door side wall 32 to the tenth guide point P 10 .

[0383] The guide track line S extends from the second guide point P2 to the side close to the door front wall 31 to the tenth guide point P10 .

[0384] The guide trajectory line S extends from the second guide point P2 through the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, the ninth guide point P9 to the tenth guide point P 10 .

[0385] In some embodiments of the present application, the ninth guiding point P9 is located on a side of the fifth guiding point P5 close to the door side wall 32 .

[0386] The ninth guiding point P9 is located on a side of the fifth guiding point P5 close to the door front wall 31 .

[0387] The eighth guide point P8 is located on a side of the fifth guide point P5 away from the door side wall 32 .

[0388] The eighth guiding point P8 is located on a side of the fifth guiding point P5 away from the door front wall 31 .

[0389] Then, the guiding trajectory line S extends from the second guiding point P2 through the sixth guiding point P7, the seventh guiding point P7, the eighth guiding point P8, the fifth guiding point P5, the ninth guiding point P9 to the tenth guiding point P 10 .

[0390] In some embodiments of the present application, the guide track line K has a tenth guide point Q close to the door side wall 32. 10 .

[0391] Among them, the ninth guide point Q9 and the tenth guide point Q 10 The doors are then approached to the side walls 32 in sequence.

[0392] Ninth guide point Q9, tenth guide point Q 10 The ninth guide point Q9 and the tenth guide point Q 10 The distances between each of them and the door front wall 31 decrease successively.

[0393] The guide track line K extends from the ninth guide point Q9 to the side close to the door side wall 32 to the tenth guide point Q 10 .

[0394] The guide track line K extends from the ninth guide point Q9 to the side close to the door front wall 31 to the tenth guide point Q 10 .

[0395] According to the relative position relationship of the aforementioned guide points, the ninth guide point Q9 is the point on the guide trajectory line K that is at the greatest distance from the door front wall 31 .

[0396] The door body 30 is opened from the ninth angle G9 to the tenth angle G 10 During the process, the first central axis P moves toward the side close to the door front wall 31 and the door side wall 32.

[0397] The door body 30 is opened from the ninth angle G9 to the tenth angle G 10 During the process, the second central axis Q moves toward the side close to the door front wall 31 and the door side wall 32. 10 .

[0398] The door body 30 is opened from the ninth angle G9 to the tenth angle G 10 During the process, the first central axis P moves from the ninth guide point Q9 to the tenth guide point P 10 .

[0399] The door body 30 is opened from the ninth angle G9 to the tenth angle G 10 During the process, the second central axis Q moves from the ninth guide point Q9 to the tenth guide point Q 10 .

[0400] In some embodiments of the present application, the door body 30 is opened from the ninth angle G9 to the tenth angle G 10 During the process, the axis center point I moves from the ninth center point I9 to the side close to the door front wall 31 and the door side wall 32 to the tenth center point I 10 .

[0401] The door body 30 is opened from the ninth angle G9 to the tenth angle G 10 During the process, the center point I of the axis moves toward the side close to the door front wall 31 and the door side wall 32.

[0402] In the sixth stage of opening, the door 30 opens at an angle of When , the first central axis P is located at the ninth guide point P9 of the guide trajectory line S, the second central axis Q is located at the ninth guide point Q9 of the guide trajectory line K, and the center point of the axis is located at the ninth midpoint I9.

[0403] Door body 30 opening angle When the first central axis P is located at the tenth guiding point P of the guiding trajectory line S 10 The second center axis Q is located at the tenth guide point Q of the guide trajectory line K 10 , the center point of the axis is located at the tenth midpoint I 10 .

[0404] The sixth stage is when the door 30 is opened from the ninth angle G9 to the tenth angle G 10 In this process, the first central axis P moves toward the side close to the door front wall 31 and the door side wall 32. The second central axis Q moves toward the side close to the door front wall 31 and the door side wall 32.

[0405] Specifically, the door body 30 is opened from the ninth angle G9 to the tenth angle G 10During the process, the first central axis P moves from the ninth guiding point P9 along the guiding trajectory line S to the tenth guiding point P 10 The second central axis Q moves from the ninth guide point Q9 along the guide trajectory line K to the tenth guide point Q 10 .

[0406] In the sixth stage of opening, the second hinge member (the guide portion 50 / the guide portion 60 / the door body 30 ) is used as a reference for explanation.

[0407] The door body 30 is opened from the ninth angle G9 to the tenth angle G 10 In the process, the axis line segment PQ rotates clockwise from P9Q9 to P 10 Q 10 That is, the movement trend of the axis line segment PQ is P9Q9→P 10 Q 10 At the same time, the movement trend of the axis center point I along the axis line segment PQ is I9→I 10 That is, during the opening process of the door body 30 , the center point I of the axis moves toward the side close to the door front wall 31 and the door side wall 32 relative to the door body 30 .

[0408] Since the guide portion 50 and the guide portion 60 are disposed on the door body 30, the axis line segment PQ represents the movement of the hinge plate 40 disposed on the box body 10. It is concluded that: taking the door body 30 as a reference, the door body 30 is opened from the ninth angle G9 to the tenth angle G 10 During the whole process, the box body 10 (ie, the hinge plate 40) keeps rotating clockwise relative to the door body 30 to open, and moves a certain distance toward the side close to the door front wall 31 and the door side wall 32.

[0409] In summary, the door body 30 is opened from the ninth angle G9 to the tenth angle G 10 In the process, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the door front wall 31.

[0410] According to the relativity of movement, taking the box 10 as a reference, the door 30 is opened from the ninth angle G9 to the tenth angle G 10 During the process, the door body 30 has a translational movement while rotating. The translational movement is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0411] In some embodiments of the present application, the first guide point P1, the second guide point P2, the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, the ninth guide point P9, the tenth guide point P 10 Located on the guide trajectory S.

[0412] Along the direction from the door rear wall 33 to the door front wall 31 , the distance between the guide track line S and the door side wall 32 gradually decreases.

[0413] In some embodiments of the present application, the guide trajectory line S is a straight line.

[0414] The angle between the guide trajectory line S and the front wall of the door is recorded as γ ;

[0415] in, γ Not less than the first angle reference value; the first angle reference value is between 23° and 29°. The first angle reference value can be 23°, 26° or 29°. That is, γ ≥23° or γ ≥26° or γ ≥29°.

[0416] When γ≥23°, the fixing space requirement of the mounting block and the small thickness of the door body 30 occupied by the mounting block are met. When γ≥26°, the fixing space requirement of the mounting block and the small thickness of the door body 30 occupied by the mounting block are better met. When γ≥29°, the fixing space requirement of the mounting block and the small thickness of the door body 30 occupied by the mounting block are better met.

[0417] γ is not greater than the second angle reference value; the second angle reference value is between 31° and 37°. The second angle reference value can be 31°, 34° or 37°. That is, γ ≤31° or γ ≤34° or γ ≤37°.

[0418] When γ≤31°, the wall thickness requirement between the guide portion 50 and the guide portion 60 is better met. When γ≤34°, the wall thickness requirement between the guide portion 50 and the guide portion 60 is better met. When γ≤37°, the wall thickness requirement between the guide portion 50 and the guide portion 60 is met.

[0419] γThe thickness of the guide portion 50 and the guide portion 60 is too large, resulting in the wall thickness between the guide portion 50 and the guide portion 60 being too thin, thereby reducing the strength of the guide portion 50 and the guide portion 60. In addition, when the distance between the end of the guide portion 50 away from the door side wall 31 and the door front wall 31 is relatively large, the size of the guide portion 60 in the direction perpendicular to the door front wall 31 increases synchronously, and the size of the overall trajectory of the guide portion 50 and the guide portion 60 in the direction perpendicular to the door front wall 31 becomes larger, resulting in an increase in the thickness of the door body 30, which affects its use in ultra-thin refrigerators. Furthermore, the thickness of the door body 30 is too large, resulting in an increase in the obstruction of the door body 30 to the access port; and in order to ensure that the drawer installed in the storage room can be pulled out, it is necessary to reduce the lateral width of the drawer, resulting in the drawer being unable to effectively utilize the lateral space of the storage room.

[0420] γ If the size of the mounting block is too small, there will be insufficient space for screws (not limited to screw fixing, any conventional fixing method that can fix the two components) between the two tracks of the guide portion 50 and the guide portion 60. In order to meet the fixing requirements, the area of ​​the mounting block needs to be increased; and in order to ensure the fixing strength of the mounting block, it is particularly necessary to increase the size of the mounting block in the direction perpendicular to the front wall 31 of the door to increase the position for screws (not limited to screw fixing, any conventional fixing method that can fix the two components). The increase in the size of the mounting block in the direction perpendicular to the front wall 31 of the door will increase the thickness of the door body 30 that matches it, affecting its use on the ultra-thin refrigerator. Furthermore, the thickness of the door body 30 is too large, resulting in an increase in the obstruction of the door body 30 to the access port; and in order to ensure that the drawer installed in the storage room can be pulled out, it is necessary to reduce the lateral width of the drawer, resulting in the drawer being unable to effectively utilize the lateral space of the storage room.

[0421] In some embodiments of the present application, when the guide trajectory line S is a straight line, the fifth guide point Q5 is located on the extension line of the guide trajectory line S. That is, the fifth guide point Q5 is located on the straight line where the guide trajectory line S is located.

[0422] In some embodiments of the present application, the guide track line S is a curve. The guide track line S is convex toward a side close to the second side edge N.

[0423] In some embodiments of the present application, the door body 30 is opened from the first angle G1 to the tenth angle G 10 During the process of opening the door body 30 to the second angle G2, the first central axis P is located at the second guide point P2 of the guide trajectory S. On the guide trajectory S, the distance between the second guide point P2 and the door side wall 32 is the largest. On the guide trajectory S, the distance between the second guide point P2 and the door front wall 31 is the largest.

[0424] The second guide point P2 and the tenth guide point P 10 The straight line is recorded as straight line P2P 10 ; Straight Line P2P10 The angle between the door and the front wall is denoted as λ;

[0425] Wherein, λ is not less than the first angle reference value; the first angle reference value is between 23° and 29°. The first angle reference value may be 23°, 26° or 29°. That is, λ≥23° or λ≥26° or λ≥29°.

[0426] When λ≥23°, the fixing space requirement of the mounting block and the small thickness of the door body 30 occupied by the mounting block are met. When λ≥26°, the fixing space requirement of the mounting block and the small thickness of the door body 30 occupied by the mounting block are better met. When λ≥29°, the fixing space requirement of the mounting block and the small thickness of the door body 30 occupied by the mounting block are better met.

[0427] λ is not greater than the second angle reference value; the second angle reference value is between 31° and 37°. The first angle reference value may be 31°, 34° or 37°. That is, λ≤31° or λ≤34° or λ≤37°.

[0428] When λ≤31°, the wall thickness requirement between the guide portion 50 and the guide portion 60 is better met. When λ≤34°, the wall thickness requirement between the guide portion 50 and the guide portion 60 is better met. When λ≤37°, the wall thickness requirement between the guide portion 50 and the guide portion 60 is met.

[0429] λ is too large, resulting in the wall thickness between the guide part 50 and the guide part 60 being too thin, reducing the strength of the guide part 50 and the guide part 60. In addition, when the distance between the end of the guide part 50 away from the door side wall 31 and the door front wall 31 is relatively large, the size of the guide part 60 in the direction perpendicular to the door front wall 31 increases synchronously, and the size of the overall trajectory of the guide part 50 and the guide part 60 in the direction perpendicular to the door front wall 31 becomes larger, resulting in an increase in the thickness of the door body 30, affecting its use on ultra-thin refrigerators. Furthermore, the thickness of the door body 30 is too large, resulting in an increase in the obstruction of the door body 30 to the access port; and in order to ensure that the drawer installed in the storage room can be pulled out, it is necessary to reduce the lateral width of the drawer, resulting in the drawer being unable to effectively utilize the lateral space of the storage room.

[0430] If λ is too small, there will be insufficient space for screws (not limited to screw fixing, any conventional fixing method that can fix two parts) between the two tracks of the guide part 50 and the guide part 60 on the mounting block. In order to meet the fixing requirements, it is necessary to increase the area of ​​the mounting block; and in order to ensure the fixing strength of the mounting block, it is particularly necessary to increase the size of the mounting block in the direction perpendicular to the front wall 31 of the door to increase the position for screws (not limited to screw fixing, any conventional fixing method that can fix two parts). The increase in the size of the mounting block in the direction perpendicular to the front wall 31 of the door will increase the thickness of the door body 30 that matches it, affecting its use on ultra-thin refrigerators. Furthermore, the thickness of the door body 30 is too large, resulting in an increase in the obstruction of the door body 30 to the access port; and in order to ensure that the drawer installed in the storage room can be pulled out, it is necessary to reduce the lateral width of the drawer, resulting in the drawer being unable to effectively utilize the lateral space of the storage room.

[0431] In some embodiments of the present application, the door body 30 is opened from the first angle G1 to the tenth angle G 10 During the process, the door body 30 is opened to the tenth angle G 10 When the first central axis P is located at the tenth guiding point P of the guiding trajectory line S 10 On the guiding trajectory line S, the tenth guiding point P 10 The distance from the door side wall 32 is the smallest. On the guide trajectory line S, the tenth guide point P 10 The distance from the door front wall 31 is the smallest.

[0432] In some embodiments of the present application, the guide track line S extends from the second guide point P2 to the side close to the door side wall 32 to the tenth guide point P 10 .

[0433] The guide track line S extends from the second guide point P2 to the side close to the door front wall 31 to the tenth guide point P 10 .

[0434] The first guide point P1, the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, the eighth guide point P8, and the ninth guide point P9 are located on the guide trajectory line S and are located between the second guide point P2 and the tenth guide point P 10 between.

[0435] In some embodiments of the present application, the first angle G1<the second angle G2<the third angle G3<the fourth angle G4<the fifth angle G5<the sixth angle G6<the seventh angle G7=90°<the eighth angle G8<the ninth angle G9<the tenth angle G 10 .

[0436] In some embodiments of the present application, the first guide point Q1, the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, the ninth guide point Q9, the tenth guide point Q 10 Located on the guide trajectory line K.

[0437] In some embodiments of the present application, the guide track line K first extends from the first guide point Q1 to the side away from the door side wall 32 to the fourth guide point Q4; then extends from the fourth guide point Q4 to the side close to the door side wall 32 to the tenth guide point Q 10 .

[0438] The guide track line K first extends from the first guide point Q1 to the side away from the door front wall 31 to the ninth guide point Q9, and then extends from the ninth guide point Q9 to the side close to the door front wall 31 to the tenth guide point Q 10 .

[0439] The guide trajectory line K extends from the first guide point Q1 through the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, the seventh guide point Q7, the eighth guide point Q8, the ninth guide point Q9 to the tenth guide point Q 10 .

[0440] In some embodiments of the present application, the guide trajectory line K first extends from the first guide point Q1 to the side away from the door side wall 32 and the door side wall 32 to the fourth guide point Q4; then extends from the fourth guide point Q4 to the side away from the door front wall 31 and close to the door side wall 32 to the ninth guide point Q9, and then extends from the ninth guide point Q9 to the side close to the door front wall 31 and the door side wall 32 to the tenth guide point Q 10 .

[0441] The ninth guide point Q9 is the point where the distance between the guide track line K and the door front wall 31 is the largest.

[0442] The fourth guide point Q4 is the point where the distance between the guide track line K and the door side wall 32 is the largest.

[0443] In some embodiments of the present application, the first guide point P1 is located on the side of the first guide point Q1 close to the door rear wall 33 and the door side wall 32. The ninth guide point P9 is located on the side of the ninth guide point Q9 close to the door front wall 31 and the door side wall 32. 10 Located at the tenth guide point Q 10 A side close to the door front wall 31 and away from the door side wall 32.

[0444] Combining the first stage, the second stage, the third stage, the fourth stage, the fifth stage and the sixth stage, it can be seen that the door body 30 is opened from the first angle G1 to the tenth angle G 10During the opening process, the first shaft 41 first moves in a direction away from the door front wall 31 and the door side wall 32 (G1-G2), then moves in the opposite direction toward the door front wall 31 and the door side wall 32 (G2-G5), then moves in the opposite direction away from the door front wall 31 and the door side wall 32 (G5-G6), and then moves in the opposite direction toward the door front wall 31 and the door side wall 32 (G6-G7). 10 In summary, the door body 30 is opened from the first angle G1 to the tenth angle G 10 During the opening process, the first shaft 41 turns three times relative to the movement direction of the door body 30. The hinge assembly with the above trajectory characteristics reduces the size of the guide part 50 and fully utilizes the small-sized guide part 50 to complete the opening of the door body 30 at a large angle.

[0445] Combining the situations in the first, second, third, fourth, fifth and sixth stages, it can be seen that: according to the relativity of motion, with the box body 10 as a reference, the door body 30 has a translational motion while rotating. The translational displacement component of the translational motion includes a displacement component parallel to the door rear wall 33 and a displacement component parallel to the door side wall 32. Among them, the displacement component parallel to the door rear wall 33 is recorded as the first direction displacement The displacement component parallel to the door side wall 32 is the second displacement direction In different opening stages of the door body 30, the first direction displacement and the second direction displacement There will be differences in the direction.

[0446] In summary, the movement process of the first central axis P and the second central axis Q of the door body 30 during the first stage to the sixth stage, and the movement trend of the synchronous axis center point I, can reveal the movement process of the axis center point I.

[0447] Specifically, Fig.18 As shown, the movement process of the axis center point I relative to the door body 30 includes a first axis trajectory segment.

[0448] First axis trajectory segment: when the door body 30 is opened from the first angle G1 to the third angle G3, the axis center point I moves toward the side away from the door front wall 31 and the door side wall 32.

[0449] The axis center point I moves from the first center point I1 to the side away from the door front wall 31 and the door side wall 32 through the second center point I2 to the third center point I3.

[0450] Taking the box 10 as a reference, the door 30 is at a first angle G1 (which can be set, G G =G1 or G G= G1 = 0°) to the third angle G3, the door body 30 has a translational movement while rotating. The translational movement is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and toward the door side wall 32 and a displacement parallel to the door side wall 33 and toward the door front wall 31.

[0451] The door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) during the process of opening to the third angle G3, the first direction displacement Pointing to the side of the door side wall 32, the second direction displacement Point to the side of the door front wall 31.

[0452] like Fig.18 As shown, the movement process of the axis center point I relative to the door body 30 includes a second axis trajectory segment.

[0453] Second axis trajectory segment: when the door body 30 is opened from the third angle G3 to the eighth angle G8, the axis center point I moves away from the door front wall 31 and closer to the door side wall 32.

[0454] The axis center point I moves from the third center point I3 to the side away from the door front wall 31 and close to the door side wall 32, passing through the fourth center point I4, the fifth center point I5, the sixth center point I6, the seventh center point I7 and the eighth center point I8.

[0455] Taking the box body 10 as a reference, when the door body 30 is opened from the third angle G3 to the eighth angle G8, the door body 30 has a translational motion while rotating. The translational motion is as follows: relative to the door body 30, the box body 10 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 33 and pointing to the door front wall 31.

[0456] When the door body 30 is opened from the third angle G3 to the eighth angle G8, the first direction displacement Pointing away from the door side wall 32, the second direction displacement Point to the side of the door front wall 31.

[0457] In some embodiments of the present application, the difference between the eighth angle G8 and 90° is denoted as ΔG8;

[0458] Wherein, ΔG8 is not less than the first reference difference; the first reference difference is between 0° and 2°. The first reference difference may be 0°, 1° or 2°. That is, ΔG8≥0° or ΔG8≥1° or ΔG8≥2°.

[0459] When ΔG8≥0°, the door body 30 meets the requirements for shielding the access opening. When ΔG8≥1°, the door body 30 meets the requirements for shielding the access opening better. When ΔG8≥2°, the door body 30 meets the requirements for shielding the access opening better.

[0460] ΔG8 is not greater than the second reference difference; the second reference difference is between 3° and 6°. The second reference difference may be 3°, 4° or 6°. That is, ΔG8≤3° or ΔG8≤4° or ΔG8≤6°.

[0461] When ΔG8≤3°, the maximum angle requirement of the door body 30 of the refrigerator placed in the storage cabinet 100 can be better met. When ΔG8≤4°, the maximum angle requirement of the door body 30 of the refrigerator placed in the storage cabinet 100 can be better met. When ΔG8≤6°, the maximum angle requirement of the door body 30 of the refrigerator placed in the storage cabinet 100 can be met.

[0462] Among them, ΔG8 is too small, and after the door body 30 is opened to 90°, the outward displacement is too small, and the door body 30 blocks a large amount of the access opening, which is inconvenient for users to take and place items.

[0463] ΔG8 is too large. After the door body 30 is opened to 90°, the outward displacement is too large. The distance between the door body 30 and the storage cabinet 100 is too close. The maximum angle that the door body 30 of the refrigerator placed in the storage cabinet 100 can be opened is reduced, which is not conducive to opening the door body 30 to a larger angle. It is especially inconvenient for users to take and place items placed inside the door body 30.

[0464] like Fig.18 As shown, the movement process of the axis center point I relative to the door body 30 includes a third axis trajectory segment.

[0465] The third axis track segment: the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 During the process, the center point I of the axis moves toward the side close to the door front wall 31 and the door side wall 32.

[0466] The axis center point I moves from the eighth center point I8 to the side close to the door front wall 31 and the door side wall 32 through the ninth center point I9 to the tenth center point I 10 .

[0467] Taking the box 10 as a reference, the door 30 is opened from the eighth angle G8 to the tenth angle G 10 During the process, the door body 30 has a translational movement while rotating. The translational movement is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0468] When the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 During the process, the first direction displacement Pointing away from the door side wall 32, the second direction displacement It points to the side away from the front wall 31 of the door.

[0469] The door body 30 opens from the first angle G1 to the tenth angle G 10 During the process, the trajectory of the axis center point I moving relative to the door body 30 is recorded as the axis center point trajectory line. Among them, the distance between the eighth midpoint I8 on the axis center point trajectory line and the door front wall 31 is the largest. The distance between the third midpoint I3 on ​​the axis center point trajectory line and the door side wall 32 is the largest.

[0470] In some embodiments of the present application, G1<G3<G6=G F3 <G7=90°<G8<G9=G F4 <G 10 .

[0471] It should be noted that “pointing toward the door side wall 32 ” refers to the direction from the end of the door body 30 opposite to the door side wall 32 toward the door side wall 32 ;

[0472] “Directed away from the door side wall 32 ” means that it is directed from the door side wall 32 to the direction of the end of the door body 30 opposite to the door side wall 32 ;

[0473] “Towards the side of the door front wall 31” refers to the direction from the door rear wall 33 to the door front wall 31;

[0474] “Directed to the side away from the door front wall 31 ” refers to the direction from the door front wall 31 to the door rear wall 33 .

[0475] In addition, it should be noted that the first direction displacement Second direction displacement All of them are instantaneous relative translation displacements, to illustrate the instantaneous translation movement trend of the door body 30 relative to the box body 10.

[0476] See also Figure 19a-19hAs shown; in the plane where the top wall of the box body 10 is located, on the side of the box body 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 port is located, and OA is parallel to the plane where the access port is located. In the displacement coordinate system AOB, the direction from the second body side wall to the first body side wall is defined as positive, and the direction from the access port to the door front wall 31 when the door body 30 is closed (from back to 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 box body 10, and it does not move with the opening of the door body 30. During the opening process of the door body 30, the relative position of the door body coordinate system XOY relative to the displacement coordinate system AOB changes continuously with the different opening angles of the door body 30; and when the opening angle of the door body 30 is determined, the instantaneous relative position of the door body coordinate system XOY relative to the displacement coordinate system AOB remains relatively stationary.

[0477] 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. The second direction displacement parallel to the door side wall 32 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

[0478] (1) Figure 19a-19d As shown, the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to G7 = 90°, during the process of the door body 30 rotating counterclockwise relative to the box body 10 to open, the door side wall 32, the door rear wall 33 and the door front wall 31 also rotate counterclockwise during the opening process at this stage. In the plane where the top wall of the box body 10 is located, along the direction from the second side edge N to the first side edge W (the door rear wall 33 to the door front wall 31), the door side wall 32 extends outward and forward; 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 inward and forward.

[0479] In the above opening process (the first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to G7 = 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 access port is located gradually decreases, and the angle between the door side wall 32 and the reference plane M0 gradually increases; that is, when the door body 30 is at the first angle G1 (which can be set, G G=G1 or G G = G1 = 0°) to G7 = 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 to the side away from the second body side wall and the access 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 access opening is located gradually increases, and the angle between the door rear wall 33 and the reference plane M0 gradually decreases; that is, when the door body 30 is opened from the first angle G1 (which can be set, G G =G1 or G G =G1=0°) to G7=90°, 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 in a direction away from the first body side wall and the access port (close to the second body side wall and away from the access port).

[0480] (1.1) During the opening process of the door body 30, the door body 30 includes a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to the third angle G3.

[0481] From the above description, it can be seen that: when the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) is opened to the third angle G3, 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 of the door side wall 32 The second direction displacement is parallel to the door side wall 32 and points to the side of the door front wall 31

[0482] That is, when the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) during the process of opening to the third angle G3, the first direction displacement Pointing to the outer rear side of the box body 10 (outward and rearward side), the second direction displacement It points to the outer front side (outward and forward side) of the housing 10 .

[0483] like Figure 19a-19b As shown, in the displacement coordinate system AOB, the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) during the process of opening to the third angle G3, the first direction displacement of the door body 30 Located in the fourth quadrant (A>0, B<0). Second direction displacement Located in the first quadrant (A>0, B>0).

[0484] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis. Displacement in the first direction The displacement on the A axis is Second direction displacement The displacement on the A axis is

[0485] Then there is It can be seen that the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to the third angle G3, in the displacement coordinate system AOB, the door body 30 has a first translation displacement It can be concluded that relative to the box body 10, the door body 30 has a tendency to move translationally along the positive direction of the A axis while rotating; that is, in the process of the door body 30 opening from the first angle G1 to the third angle G3, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move translationally outward.

[0486] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the B axis. Displacement in the first direction The displacement on the B axis is Second direction displacement The displacement on the B axis is

[0487] In some embodiments of the present application, the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to the third angle G3, Then there is It can be seen that the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to the third angle G3, in the displacement coordinate system AOB, the door body 30 has a second translation displacement It can be concluded that the door body 30 has a tendency to translate forward along the B axis while rotating relative to the box body 10. That is, when the door body 30 opens from the first angle G1 to the third angle G3, the door body 30 has a tendency to translate forward while rotating relative to the box body 10.

[0488] Combined with the translation tendency of the door body 30 along the A-axis direction, when the door body 30 is opened from the first angle G1 to the third angle G3, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of translation outward and forward.

[0489] In some embodiments of the present application, During the process of the door body 30 opening from the first angle G1 to the third angle G3, the door body 30 mainly moves forward, and at the same time has a relatively small tendency to move outward. So that the door body 30 moves outward on the one hand, to meet the closing demand of the door body 30 with a flip beam, or to meet the opening demand when the two door bodies 30 are opened with a side sealing strip sealed without a flip beam. On the other hand, the door body 30 moves forward to increase the amount of the door body 30 escaping from the space defined by the storage cabinet 100 in the front-to-back direction, and reduce the restriction of the storage cabinet 100 on the maximum angle that the door body 30 of the refrigerator accommodated therein can be opened. In addition, it is also avoided that the displacement of the door body 30 moving outward in the initial stage of the door body 30 is large, resulting in the interference of the first side edge W with the storage cabinet 100 during the opening process of the door body 30.

[0490] (1.2) During the opening process of the door body 30, the door body 30 includes a process corresponding to opening from the third angle G3 to the seventh angle G7 = 90° in the second axis trajectory segment.

[0491] From the above description, it can be seen that when the door body 30 is opened from the third angle G3 to the seventh angle G7 = 90°, 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, with the box body 10 as a reference. The second direction displacement is parallel to the door side wall 32 and points to the side of the door front wall 31

[0492] That is, when the door body 30 is opened from the third angle G3 to the seventh angle G7 = 90°, 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 outer front side (outward and forward side) of the housing 10 .

[0493] like Figure 19c-19d As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the third angle G3 to the seventh angle G7 = 90°, the first direction displacement of the door body 30 Located in the second quadrant (A<0B>0). Second direction displacement Located in the first quadrant (A>0, B>0).

[0494] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the B axis. Displacement in the first direction The displacement on the B axis is Second direction displacement The displacement on the B axis is

[0495] Then there is It can be seen that when the door body 30 is opened from the third angle G3 to the seventh angle G7 = 90°, in the displacement coordinate system AOB, the door body 30 has a second translation displacement It can be concluded that the door body 30 has a tendency to translate forward along the B axis while rotating relative to the box body 10. That is, when the door body 30 is opened from the third angle G3 to the seventh angle G7 = 90°, the door body 30 has a tendency to translate forward while rotating relative to the box body 10.

[0496] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis. Displacement in the first direction The displacement on the A axis is Second direction displacement The displacement on the A axis is

[0497] In some embodiments of the present application, Fig.19c As shown, the door body 30 is opened from the third angle G3 to the first turning angle G Z1 In the process, Then there is It can be seen that the door body 30 is opened from the third angle G3 to the first turning angle G Z1 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move inwardly.

[0498] Combined with the translation trend of the door body 30 along the B axis direction, the door body 30 is opened from the third angle G3 to the first turning angle G Z1 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of moving inwardly and forwardly.

[0499] like Fig.19d As shown, the door body 30 is turned from the first angle G Z1 During the process of opening to the seventh angle G7 = 90°, Then there is It can be seen that the door body 30 is turned from the first angle G Z1 During the process of opening to the seventh angle G7=90°, the door body 30 rotates and opens relative to the box body 10 and has a tendency to move outwardly.

[0500] Combined with the translation trend of the door body 30 along the B axis direction, the door body 30 is turned from the first turning angle G Z1 During the process of opening to the seventh angle G7=90°, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move outwardly and forwardly.

[0501] In summary, when the door body 30 is opened from the third angle G3 to the seventh angle G7 = 90°, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of first moving inward and then moving outward.

[0502] Combined with the translational trend of the door body 30 along the B-axis direction, when the door body 30 opens from the third angle G3 to the seventh angle G7=90°, the door body 30 rotates and opens relative to the box body 10 while having a movement trend of first translating inwardly and forwardly, and then translating outwardly and forwardly.

[0503] Among them, G3<G Z1 <G7.

[0504] In some embodiments of the present application, during the process of the door body 30 opening from the third angle G3 to the seventh angle G7 = 90°, Then there is It can be seen that when the door body 30 is opened from the third angle G3 to the seventh angle G7 = 90°, in the displacement coordinate system AOB, the door body 30 has a first translation displacement It can be concluded that the door body 30 has a tendency to translate inwardly while rotating relative to the box body 10. That is, when the door body 30 is opened from the third angle G3 to the seventh angle G7 = 90°, the door body 30 has a tendency to translate inwardly while rotating relative to the box body 10.

[0505] Combined with the translational tendency of the door body 30 along the B-axis direction, when the door body 30 is opened from the third angle G3 to the seventh angle G7 = 90°, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of translation inward and forward.

[0506] In some embodiments of the present application, during the process of the door body 30 opening from the third angle G3 to the seventh angle G7 = 90°, Then there is It can be seen that when the door body 30 is opened from the third angle G3 to the seventh angle G7 = 90°, in the displacement coordinate system AOB, the door body 30 has a first translation displacement It can be concluded that the door body 30 has a tendency to translate along the positive direction of the A axis while rotating relative to the box body 10. That is, when the door body 30 is opened from the third angle G3 to the seventh angle G7 = 90°, the door body 30 has a tendency to translate outward while rotating relative to the box body 10.

[0507] Combined with the translational tendency of the door body 30 along the B-axis direction, when the door body 30 is opened from the third angle G3 to the seventh angle G7 = 90°, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of translation outward and forward.

[0508] Combining (1.1) to (1.2), it can be seen that when the door body 30 is opened from the first angle G1 to the seventh angle G7 = 90°, the door body 30 has a tendency to move inwards in the early stage of opening (G1 to G7 = 90°). Z1 ) to compensate for the outward displacement of the first side edge caused by simple rotation at the initial stage of opening the door body 30, thereby effectively avoiding interference between the door body 30 and the storage cabinet 100.

[0509] When the door body 30 is opened from the first angle G1 to the seventh angle G7=90°, the door body 30 has a tendency to move outwards when opening to 90° (G Z1 ~G7=90°), so as to reduce the blocking of the door body 30 to the access opening.

[0510] In addition, when the door body 30 is opened from the first angle G1 to the seventh angle G7=90°, the door body 30 moves forward (G1~G7=90°) so that the door body 30 is as far away from the space defined by the storage cabinet 100 as possible, thereby reducing the restriction of the storage cabinet 100 on the opening angle of the door body 30, thereby making the maximum angle that the door body 30 can open in the storage cabinet 100 larger.

[0511] (2) Fig.19e As shown, when the door body 30 is opened to 90°, the door side wall 33 is parallel to the plane where the access port is located, and is perpendicular to the reference plane M0; at this time, the door rear wall 33 is parallel to the reference plane M0, and is perpendicular to the plane where the access port is located. 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 side wall 32 extends from inside to outside; 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 from back to front.

[0512] During the opening process of the door body 30 , the door body 30 includes a process in the fourth axis trajectory segment corresponding to when the door body 30 is opened to the seventh angle G7 = 90°.

[0513] From the above description, it can be seen that when the door body 30 is opened to the seventh angle 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 away from the door side wall 32 The second direction displacement is parallel to the door side wall 32 and points to the side of the door front wall 31

[0514] That is, when the door body 30 is opened to the seventh angle G7 = 90°, the first direction displacement Pointing to the front side (forward side) of the box 10, the second direction displacement It points to the outside of the housing 10 (toward the outside).

[0515] like Fig.19eAs shown, in the displacement coordinate system AOB, when the door body 30 is opened to the seventh angle G7 = 90°, the first direction displacement of the door body 30 Along the B axis (A=0, B>0). Second direction displacement Along the A axis (A>0, B=0).

[0516] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis. Displacement in the first direction The displacement on the A axis is Second direction displacement The displacement on the A axis is

[0517] In some embodiments of the present application, when the door body 30 is opened to the seventh angle G7 = 90°, It can be seen that when the door body 30 is opened to the seventh angle G7 = 90°, in the displacement coordinate system AOB, the door body 30 has a first translation displacement It can be concluded that the door body 30 has a tendency to translate along the positive direction of the A axis while rotating relative to the box body 10. That is, when the door body 30 is opened to the seventh angle G7=90°, the door body 30 has a tendency to translate outward while rotating relative to the box body 10.

[0518] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the B axis. Displacement in the first direction The displacement on the B axis is Second direction displacement The displacement on the B axis is

[0519] Then there is It can be seen that when the door body 30 is opened to the seventh angle G7 = 90°, in the displacement coordinate system AOB, the door body 30 has a second translation displacement It can be concluded that the door body 30 has a tendency to translate forward along the B axis while rotating relative to the box body 10. That is, when the door body 30 is opened to the seventh angle G7=90°, the door body 30 has a tendency to translate forward while rotating relative to the box body 10.

[0520] Combined with the translation tendency of the door body 30 along the A-axis direction, when the door body 30 is opened to the seventh angle G7=90°, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of translation outward and forward.

[0521] (3) Figure 19f-19h As shown in FIG. 1 , when the door body 30 is rotated from the seventh angle G7 = 90° to G10 (G 10 >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 where the top wall of the box body 10 is located, the door side wall 32 extends outward and backward along the direction from the second side edge N to the first side edge W; 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 outward and forward.

[0522] In 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, when the door body 30 rotates from G7 = 90° to G 10 During the process, 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 to the side away from the second body side wall and close to the access opening. At the same time, the angle between the door rear wall 33 and the plane where the access opening is located gradually decreases, and the angle between it and the reference plane M0 gradually increases; that is, when the door body 30 rotates from G7 = 90° to G 10 During the opening and closing process, 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 in a direction away from the second body side wall and the access opening.

[0523] (3.1) During the opening process of the door body 30, the door body 30 includes a process of opening from the seventh angle G7 = 90° to the eighth angle G8 corresponding to the second axis trajectory segment.

[0524] From the above description, it can be seen that when the door body 30 is opened from the seventh angle G7 = 90° to the eighth angle G8, 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 The second direction displacement is parallel to the door side wall 32 and points to the side of the door front wall 31

[0525] That is, when the door body 30 is opened from the seventh angle G7 = 90° to the eighth angle G8, 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 outer rear side of the housing 10 (the side facing outward and rearward).

[0526] like Fig.19f As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the seventh angle G7 = 90° to the eighth angle G8, the first direction displacement of the door body 30 Located in the first quadrant (A>0, B>0). Displacement in the second direction Located in the fourth quadrant (A>0, B<0).

[0527] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis. Displacement in the first direction The displacement on the A axis is Second direction displacement The displacement on the A axis is

[0528] Then there is It can be seen that when the door body 30 is opened from the seventh angle G7 = 90° to the eighth angle G8, in the displacement coordinate system AOB, the door body 30 has a first translation displacement It can be concluded from this that relative to the box body 10, the door body 30 has a tendency to move translationally along the positive direction of the A axis while rotating; that is, in the process of the door body 30 opening from the seventh angle G7=90° to the eighth angle G8, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move translationally outward.

[0529] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the B axis. Displacement in the first direction The displacement on the B axis is Second direction displacement The displacement on the B axis is

[0530] In some embodiments of the present application, during the process of the door body 30 opening from the seventh angle G7 = 90° to the eighth angle G8, Then there is It can be seen that when the door body 30 is opened from the seventh angle G7 = 90° to the eighth angle G8, in the displacement coordinate system AOB, the door body 30 has a second translation displacement It can be concluded that the door body 30 has a tendency to translate forward along the B axis while rotating relative to the box body 10. That is, when the door body 30 is opened from the seventh angle G7 = 90° to the eighth angle G8, the door body 30 has a tendency to translate forward while rotating relative to the box body 10.

[0531] Combined with the translational tendency of the door body 30 along the A-axis direction, when the door body 30 is opened from the seventh angle G7 = 90° to the eighth angle G8, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of translation outward and forward.

[0532] In some embodiments of the present application, During the process of the door body 30 opening from the seventh angle G7 = 90° to the eighth angle G8, the door body 30 mainly moves forward, and has a tendency to move slightly outward, so that the door body 30 is as far away from the space defined by the storage cabinet 100 as possible, and the restriction of the storage cabinet 100 on the opening angle of the door body 30 is reduced, so that the maximum angle that the door body 30 can open in the storage cabinet 100 is larger.

[0533] (3.2) During the opening process of the door body 30, the door body 30 includes a portion corresponding to the third axis track segment, which is opened from the eighth angle G8 to the tenth angle G 10 process.

[0534] From the above description, it can be seen that when the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 In the process, 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. The second direction parallel to the door side wall 32 and pointing away from the door front wall 31 is displaced

[0535] That is, when the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 During the process, 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 housing 10 (the side facing inward and forward).

[0536] like Figure 19g-19h As shown, in the displacement coordinate system AOB, the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 During the process, the first direction displacement of the door body 30 Located in the first quadrant (A>0, B>0). Displacement in the second direction Located in the second quadrant (A<0, B>0).

[0537] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the B axis. Displacement in the first direction The displacement on the B axis is Second direction displacement The displacement on the B axis is

[0538] Then there is It can be seen that the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 During the process, in the displacement coordinate system AOB, the door body 30 has a second translation displacement It can be concluded that: relative to the box body 10, the door body 30 has a tendency to move in a positive direction along the B axis while rotating. That is, the door body 30 opens from the eighth angle G8 to the tenth angle G 10 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move forward in translation.

[0539] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis. Displacement in the first direction The displacement on the A axis is Second direction displacement The displacement on the A axis is

[0540] In some embodiments of the present application, Figure 19g As shown, the door body 30 is opened from the eighth angle G8 to the second turning angle G Z2 In the process, Then there is It can be seen that the door body 30 is opened from the eighth angle G8 to the second turning angle G Z2 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move inwardly.

[0541] Combined with the translation trend of the door body 30 along the B-axis direction, the door body 30 is opened from the eighth angle G8 to the second turning angle G Z2 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of moving inwardly and forwardly.

[0542] like Figure 19h As shown, the door body 30 is turned from the second angle G Z2 Open to the tenth angle G 10 In the process, Then there is It can be seen that the door body 30 is at the second turning angle G Z2 Open the tenth angle G 10 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move outwards in translation.

[0543] Combined with the translation trend of the door body 30 along the B axis direction, the door body 30 is turned from the second turning angle G Z2 Open to the tenth angle G 10 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move outwardly and forwardly.

[0544] In summary, the door body 30 is moved from the eighth angle G8 to the tenth angle G 10During the opening process, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of first moving inwardly and then moving outwardly.

[0545] Combined with the translation trend of the door body 30 along the B-axis direction, the door body 30 moves from the eighth angle G8 to the tenth angle G 10 During the opening process, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of first moving inwardly and forwardly, and then moving outwardly and forwardly.

[0546] Among them, G8<G Z2 <G 10 .

[0547] In some embodiments of the present application, the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 In the process, Then there is It can be seen that the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 In the process, in the displacement coordinate system AOB, the door body 30 has a first translation displacement It can be concluded that: relative to the box body 10, the door body 30 has a tendency to move in a negative direction along the A axis while rotating. That is, the door body 30 opens from the eighth angle G8 to the tenth angle G 10 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move inwardly.

[0548] Combined with the translation trend of the door body 30 along the B-axis direction, the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of moving inwardly and forwardly.

[0549] In some embodiments of the present application, the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 In the process, Then there is It can be seen that the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 In the process, in the displacement coordinate system AOB, the door body 30 has a first translation displacement It can be concluded that: relative to the box body 10, the door body 30 has a tendency to move in a positive direction along the A axis while rotating. That is, the door body 30 opens from the eighth angle G8 to the tenth angle G 10 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move outwards in translation.

[0550] Combined with the translation trend of the door body 30 along the B-axis direction, the door body 30 is opened from the eighth angle G8 to the tenth angle G 10During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move outwardly and forwardly.

[0551] In some embodiments of the present application, the door body 30 is opened from the eighth angle G8 to the tenth angle G 10 In the process, The door body 30 is opened from the eighth angle G8 to the tenth angle G 10 During the process, the door body 30 mainly moves forward, and at the same time has a tendency to move outward a little. This allows the door body 30 to be separated from the space defined by the storage cabinet 100 as much as possible, reducing the restriction of the storage cabinet 100 on the opening angle of the door body 30, so that the maximum angle that the door body 30 can open in the storage cabinet 100 is larger. In addition, the door body 30 mainly moves forward, and at the same time moves inward a little, which can minimize the obstruction of the door body 30 on the access opening.

[0552] It should be noted that the above description only uses some angles in the range of 0 to 90 degrees, 90 degrees, 90 degrees to G 10 Some angles within the range are used as representatives to illustrate the overall movement trend of the door body 30, but they can represent the movement trend within the corresponding range, and can illustrate that the hinge assembly with the above trajectory characteristics of the utility model can make the door body 30 translate along the A-axis and the B-axis throughout the process of rotating and opening.

[0553] The hinge assembly with the trajectory feature of the utility model enables the door body 30 to have a specific translational movement while rotating during opening, and its trajectory (guide trajectory line S and guide trajectory line K) is smooth and has no sharp points, effectively ensuring the smoothness and stability of the opening of the door body 30.

[0554] In some embodiments of the present application, Figure 20-21 As shown, the refrigerator includes two door bodies 30 arranged opposite to each other, and the two door bodies 30 arranged opposite to each other cooperate to open or close the access opening. A side sealing strip 3 is provided on a side of any one of the two door bodies 30 away from its door side wall 32. When the two door bodies 30 are closed, the side sealing strip 3 on any one of the two door bodies 30 is sealed with the side sealing strip 3 on the other. That is, when the two door bodies 30 are closed, the two side sealing strips 3 are squeezed in the gap between the two door bodies 30 to effectively close the space between the two door bodies 30 and the box body 10 to prevent cold air from overflowing.

[0555] Combined with the above arrangement of the hinge assembly, the hinge assembly has a motion characteristic of guiding the door body 30 to move outward first when opening, and the door body 30 is in a closed state (configurable, G G =G1 or G G =G1=0° or G G =G2 or G G=G2=0°) during opening to the third angle G3, the door body 30 moves outward, which can avoid the situation where one of the two relatively arranged door bodies 30 is opened and the other door body 30 is opened, thereby effectively reducing the loss of cooling energy; at the same time, it can effectively reduce the obstruction of the door body 30 to the access port.

[0556] Combined with the above arrangement of the hinge assembly, the hinge assembly has the motion characteristic of guiding the door body 30 to move outward first and then inward when opening, and the door body 30 is in a closed state (configurable, G G =G1 or G G =G1=0° or G G =G2 or G G = G2 = 0°) to the third angle G3, the door body 30 moves outward, which can prevent the other door body 30 from being driven to open when one of the two oppositely arranged door bodies 30 is opened, effectively reducing the loss of cooling capacity; at the same time, it can effectively reduce the blocking of the access opening by the door body 30. Z1 ), the door body 30 has a tendency to move inward, and the opened door body 30 can be moved inward after the two door bodies 30 are separated, which can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, and limit the distance of the first side edge W beyond the reference plane M0 to not exceed the distance between the storage cabinet 100 and the side wall of the refrigerator body, effectively avoiding the interference between the door body 30 and the storage cabinet 100 when it is opened, further reducing the restrictions of the storage cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of the storage cabinet 100 space. Furthermore, setting the door body 30 to move inward and / or forward during the process of opening to the maximum angle can reduce the restrictions of the storage cabinet 100 on the maximum angle that the door body 30 can open, so that the maximum angle that the door body 30 of the refrigerator installed in the storage cabinet 100 can be opened is larger.

[0557] like Figure 22 to Figure 26 As shown, in some embodiments of the present application, the refrigerator includes two door bodies 30 arranged opposite to each other, and the two door bodies 30 arranged opposite to each other cooperate to open or close the access opening. Among them, when the two door bodies 30 are closed, a flip beam 9 is provided on the side of one door body 30 close to the other door body 30. A guide rail 91 is provided on the top wall of the storage chamber of the refrigerator. The flip beam 9 can be slidably matched with the guide rail 91 to realize the switching of the flip beam 9 to different angles relative to the door body 30. When the two door bodies 30 are closed, the flip beam 9 closes the gap between the two door bodies 30 and the box body 10 to effectively prevent the cold air from overflowing.

[0558] In some embodiments of the present application, the flip beam is arranged on the inner lining surface of the door body 30 where it is located.

[0559] In some embodiments of the present application, the flip beam is connected to the door body 30 via a door hinge. The door hinge and the flip beam are elastically connected by a torsion spring.

[0560] A guide block 90 is provided at the top of the flip beam. The guide block 90 serves as a rotating component of the flip beam 9 and cooperates with the guide rail 91 to achieve the switching of the flip beam 9 to different angles relative to the door body 30.

[0561] In some embodiments of the present application, the flip beam 9 includes a door beam rear cover. The door hinge includes a first door hinge and a second door hinge. The door beam rear cover is connected to the door body 30 through the first door hinge and the second door hinge.

[0562] The door beam rear cover is elastically connected to the two door hinges by torsion springs, wherein the first door hinge is located above the second door hinge.

[0563] The guide block 90 is arranged on the top of the door swing beam rear cover.

[0564] The door hinge and the door rotating beam rear cover are both provided with through holes for passing the torsion spring force arm, and the upper and lower door hinges are connected with the door rotating beam rear cover by using the torsion spring.

[0565] In some embodiments of the present application, the first door hinge is connected to the door beam rear cover via a first torsion spring, and the second door hinge is connected to the door beam rear cover via a second torsion spring. When the flip beam 9 rotates around the door hinge, the first torsion spring and the second torsion spring store elastic energy or release elastic energy to ensure that the door beam rear cover rotates stably and resets in time.

[0566] When the door body 30 is opened, the flip beam 9 is tightly attached to one side of the door hinge fixed to the inner lining of the door body 30 due to the torsion force of the torsion springs (the first torsion spring and the second torsion spring).

[0567] like Figure 24-26 As shown, when the door body 30 is closed from the open state, an external force is first applied to the door body 30. Under the action of the external force, the door body 30 gradually closes until the door body 30 closes to the angle G. S When the guide block 90 at the top of the flip beam 9 contacts the guide rail 91.

[0568] When the door body 30 is closed to the angle G S When the external force is continuously applied, the door body 30 continues to move in the closing direction, and the guide block 90 at the top of the flip beam 9 enters the guide rail 91, and the guide block 90 interacts with the guide rail 91. During the closing process, the guide block 90 begins to flip due to the pressure of the guide rail 91, and the torsion spring is compressed in the radial direction.

[0569] When the flip beam 9 flips to the angle G' F (At this time, the door body 30 is at an angle G F state), the critical value of the torsion spring is reached.

[0570] The door body 30 is closed to the angle G F After that, the torsion spring begins to stretch, and the turning beam 9 is turned over quickly in place to release the torsion spring torsion force. Until the door body 30 is closed, the torsion spring torsion force is released and reaches a relaxed state again.

[0571] When the door body 30 is closed to the angle G F After that, the turning beam 9 is automatically closed.

[0572] In some embodiments of the present application, after the door body 30 is closed, the flip beam 9 contacts the seal provided on the door body 30, effectively preventing cold air from overflowing from the gaps between the two pairs of open doors.

[0573] If the flip beam 9 flips to the angle G' F When the external force is removed, the torsion spring torsion does not reach the critical value, resulting in the guide block 90 on the top of the flip beam 9 entering the guide rail 91 on the box body and failing to effectively complete the flip and getting stuck. The flip beam 9 cannot automatically complete the flipping, causing the door body 30 with the flip beam to fail to close in place, resulting in failure of low-temperature storage in the refrigerator.

[0574] Combined with the above arrangement of the hinge assembly, the hinge assembly has a motion characteristic of guiding the door body 30 to move outward first when opening, and the door body 30 is closed at the angle G G During the process of opening to the third angle G3, the door body 30 moves outward. Correspondingly, the door body 30 moves from the third angle G3 to the closing angle G G (Close angle G G =G1 or G G =G1=0° or G G =G2 or G G =G2=0°), the door body 30 moves inwardly.

[0575] Corresponding to the flipping of the flip beam 9 in the final stage of closing the door body 30, the door body 30 moves inward, so that the force driving the flip beam 9 to flip will not be partially offset as the door body 30 closes and moves outward, thereby avoiding the guide block 90 on the top of the rotating beam from entering the track groove on the box body and being unable to effectively complete the flipping and being stuck, effectively ensuring that the door body 30 with the flip beam 9 is closed in place, thereby ensuring the effectiveness of low-temperature storage in the refrigerator.

[0576] In some embodiments of the present application, the third angle G3 is greater than or equal to the angle G F. When the door body 30 is closed, the flip beam 9 starts to flip automatically and completes the automatic flipping during the inward displacement process. In the hinge assembly with the above trajectory characteristics, when the door body 30 is closed from an open state, the inward movement of the door body 30 can prompt the elastic potential energy released by the spring to be effectively converted into kinetic energy for flipping the flip beam 9, and it is not offset by the outward movement of the door body 30, resulting in the flip beam 9 being unable to effectively complete the flipping and being stuck, effectively ensuring that the door body 30 with the flip beam 9 is closed in place, thereby ensuring the effectiveness of low-temperature storage in the refrigerator.

[0577] In some embodiments of the present application, the third angle G3 is greater than or equal to the angle G S . When the door body 30 is closed, the guide block 90 at the top of the flip beam 9 contacts the guide rail 91 during the displacement process of moving inward, and completes the automatic flipping. In the hinge assembly with the above track characteristics, when the door body 30 is closed from the open state, the door body 30 drives the flip beam 9 to flip, and the door body 30 moves inward, so that the force driving the flip beam 9 to flip will not be partially offset as the door body 30 moves outward while closing, thereby avoiding the guide block 90 at the top of the rotating beam from entering the track groove on the box body and failing to effectively complete the flipping and getting stuck, effectively ensuring that the door body 30 with the flip beam 9 is closed in place, thereby ensuring the effectiveness of low-temperature storage in the refrigerator.

[0578] In some embodiments of the present application, the third angle G3 is greater than or equal to the angle G F At the same time, the third angle G3 is less than or equal to the angle G S The hinge assembly with the above track characteristics, when the door body 30 is closed from the open state, the door body 30 drives the flip beam 9 to flip, and the door body 30 moves inward, so that the force driving the flip beam 9 to flip will not be partially offset as the door body 30 moves outward while closing, thereby avoiding the guide block 90 on the top of the rotating beam from entering the track groove on the box body and failing to effectively complete the flip and getting stuck, effectively ensuring that the door body 30 with the flip beam 9 is closed in place, thereby ensuring the effectiveness of low-temperature storage in the refrigerator.

[0579] Combined with the above arrangement of the hinge assembly, the hinge assembly has the motion characteristic of guiding the door body 30 to move outward first and then inward when opening, and the door body 30 moves from the third angle G3 to the closing angle G G (Close angle G G =G1 or G G =G1=0° or G G =G2 or G G= G2 = 0°), the door body 30 moves inward during closing, so that the force driving the flip beam 9 to flip will not be partially offset as the door body 30 moves outward while closing, thereby preventing the guide block 90 at the top of the rotating beam from entering the track groove on the box body and failing to effectively complete the flip and getting stuck, effectively ensuring that the door body 30 with the flip beam 9 is closed in place, thereby ensuring the effectiveness of low-temperature storage in the refrigerator. At the same time, it can effectively reduce the amount of obstruction of the door body 30 on the access port. The door body 30 continues to open from the third angle G3 (from the third angle G3 to the first turning angle G Z1 ), the door body 30 has a tendency to move inwards, and the opened door body 30 can be moved inwards after the two door bodies 30 are separated, which can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, and limit the distance of the first side edge W beyond the reference plane M0 to not exceed the distance between the storage cabinet 100 and the side wall of the refrigerator body, effectively avoiding the interference between the door body 30 and the storage cabinet 100 when it is opened, further reducing the restrictions of the storage cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of the storage cabinet 100 space. Furthermore, setting the door body 30 to move inwards and / or forwards during the process of opening to the maximum angle can reduce the restrictions of the storage cabinet 100 on the maximum angle that the door body 30 can open, so that the maximum angle that the door body 30 of the refrigerator installed in the storage cabinet 100 can be opened is larger.

[0580] like Fig. 27 As shown, in some embodiments of the present application, the first hinge member is located at a first matching portion at one end thereof away from the first body side wall, and a second matching portion is provided at the end of the door body 30 close to the first hinge member, and the second matching portion is used to cooperate with the first matching portion to achieve locking and unlocking of the door body 30 and the box body 10.

[0581] As a possible arrangement, the second matching portion is located on a side of the second hinge component away from the door side wall 32 .

[0582] When the door body 30 is closed from an open state, an external force is first applied to the door body 30. Under the action of the external force, the door body 30 gradually closes. As the door body 30 rotates to close, the second matching portion gradually approaches the first matching portion.

[0583] When the door body 30 is closed to the angle G B0 When the second matching part contacts the first matching part, the door body 30 continues to close under the action of external force, the first matching part interacts with the second matching part, and the second matching part undergoes elastic deformation. Under the combined action of the external force and the action of the first matching part, the second matching part gradually approaches the first matching part, and the elastic deformation of the second matching part gradually increases.

[0584] When the door body 30 is closed to the angle G B1, the elastic deformation of the second matching portion reaches the maximum deformation of the door body 30 during the closing process.

[0585] When the door 30 is closed to the angle G B1 Then, the second matching part continues to move in the closing direction, and the elastic energy stored in the elastic deformation of the second matching part is released, and the second matching part recovers to the relaxed state, and the door body 30 is quickly and automatically closed in place. Until the door body 30 is closed, the second matching part is locked with the first matching part, and the door body 30 and the box body 10 are locked.

[0586] Above, G B0 >G B1 .

[0587] In some embodiments of the present application, G B0 Set to any value between 15° and 20°, G B1 Set to any value between 3° and 8°.

[0588] In summary, the door body 30 closes to the angle G B1 Afterwards, under the interaction of the first matching portion and the second matching portion, the door body 30 is automatically closed.

[0589] It should be noted that in some embodiments of the present application, during the closing process of the door body 30, the external force continues to act until the door body 30 is closed to G. B1 After that, that is, after the door body 30 rotates and closes to the maximum elastic deformation of the second matching portion, the external force is removed and the door body 30 can automatically close. B1 After the external force is removed, the door body 30 has an inertial force, and the inertial force also has the characteristic of keeping the door body 30 in the original closing movement trend.

[0590] As can be seen from the above, the door body 30 is formed at an angle G B0 Close to angle G B1 During the process, the second matching portion undergoes elastic deformation.

[0591] When the door body 30 is closed to the angle G B1 When the elastic deformation of the second matching portion reaches the maximum deformation of the door body 30 during the closing process.

[0592] The door body 30 is formed by an angle G B1 During the process of reaching the closed state, the elastic force of the second matching portion is released and the door body 30 is automatically closed.

[0593] That is, under the structural setting of the first matching part and the second matching part, the door body 30 is B1 In the process of reaching the closed state, the door body 30 has the characteristic of automatically closing.

[0594] Combined with the above arrangement of the hinge assembly, the hinge assembly has a motion characteristic of guiding the door body 30 to move outward first when opening, and the door body 30 is closed at the angle G G During the process of opening to the third angle G3, the door body 30 moves outward. Correspondingly, the door body 30 moves from the third angle G3 to the closing angle G G The door body 30 moves inwards during the closing process.

[0595] In some embodiments of the present application, G B1 ≥G Z1 That is, the door body 30 is in the process of automatically closing (by angle G B1 The door body 30 moves inwards, exerting an inward force on the flip beam 9, which causes the flip beam to flip. B1 In the process of continuing to close, it has the characteristic of automatic closing, and the door body 30 maintains the tendency to move inward, so the inward force exerted by the door body 30 on the flip beam 9 always exists, which can ensure that the flip beam 9 flips into place and the door body 30 is closed in place.

[0596] In some embodiments of the present application, refer to Fig. 27 The door body 30 includes a mounting block, which is mounted on the door body 30 at a position opposite to the hinge plate 40, and the guide portion 50, the guide portion 60 and the second matching portion are formed on the mounting block. The first matching portion is formed on the extension portion 402 of the hinge plate 40 and is away from the side wall of the first body.

[0597] The following description will be made by taking the mounting block disposed at the lower end of the door body 30 as an example. Fig. 27 As shown, a guide groove is formed on the mounting block, wherein the guide groove includes a groove bottom and a circumferential groove wall surrounding the edge of the groove bottom. A guide groove is formed on the mounting block, wherein the guide groove includes a groove bottom and a circumferential groove wall surrounding the edge of the groove bottom.

[0598] The door body 30 is formed with a receiving groove 37 for fixing the mounting block.

[0599] As an implementable manner, the mounting block is placed in the receiving groove 37, and then the mounting block is fastened to the door body 30 by a first fixing member. Specifically, the first fixing member can be set as a screw or the like.

[0600] In some embodiments of the present application, the mounting block includes a plate body 81 . The guide portion 50 and the guide portion 60 are formed on the plate body 81 .

[0601] The plate body 81 surrounds the guide groove and the circumferential side wall of the guide groove. The guide groove and the guide groove are formed on the plate body 81.

[0602] In some embodiments of the present application, a first fixing member connecting the mounting block and the receiving groove 37 fixes the plate body 81 and the door body 30 together.

[0603] In some embodiments of the present application, the second matching portion on the mounting block is configured as a locking structure. Specifically, the second matching portion includes a lock hook 82 disposed on a side of the plate body 81 away from the door side wall 32. The lock hook 82 first extends to a side away from the door side wall 32, and then bends to a side close to the door rear wall 33 and the door side wall 32, with the opening of the lock hook 82 facing the plate body 81 (the opening of the lock hook 82 facing the door side wall 32).

[0604] The free end of the locking hook 82 is located at a side thereof close to the door rear wall 33 .

[0605] The first matching portion provided on the side of the hinge plate 40 away from the first body side wall is provided with a stopper 403, and the stopper 403 has a hooking gap 404 on the side close to the box body 10. When the door body 30 is in a closed state, the free end of the lock hook 82 is accommodated in the hooking gap 404, and the stopper 403 is located in the lock hook 82. The lock hook 82 on the door body 30 hooks the stopper 403 on the hinge plate 40, thereby locking the door body 30 and the box body 10, and preventing the door body 30 from being loosely closed and affecting the refrigeration and freezing effect of the refrigerator. When the door body 30 is opened, the lock hook 82 is deformed by force and overcomes the obstruction of the stopper 403, thereby disengaging from the stopper 403.

[0606] The lock hook 82 may include a root connection portion 83 and a hook portion 84. The root connection portion 83 is connected to the plate body 81, and the hook portion 84 is connected to the root connection portion 83. The hook portion 83 first extends to a side away from the door side wall 32, and then bends to a side close to the door rear wall 33 and the door side wall 32. The screw is passed through the root connection portion 83 to connect with the door body 30 to strengthen the connection strength between the root connection portion 83 and the door body 30, so that when the lock hook 82 is separated from the stopper 403, only the hook portion 84 is deformed.

[0607] It can be arranged that the free ends of the hook portion 84 and the stop portion 403 are both in an arc shape, which is conducive to the hook portion 84 smoothly hooking onto the stop portion 403 or detaching from the stop portion 403 along the arc.

[0608] When the door body 30 is closed from the open state, the door body 30 gradually closes under the action of external force. As the door body 30 rotates to close, the free end of the hook portion 84 gradually approaches the stop portion 403.

[0609] When the door body 30 is closed to the angle G B0 When the hook portion 84 contacts the stop portion 403 .

[0610] Then, under the action of external force, the door body 10 continues to close, the stop portion 403 interacts with the hook portion 84, the hook portion 84 undergoes elastic deformation, and under the combined action of the external force and the stop portion 403, the hook portion 82 gradually enters the hook gap 404 (i.e., the stop portion 403 enters the hook portion 84).

[0611] When the door 30 is closed to G B1 When the elastic deformation of the hook portion 84 reaches the maximum deformation of the door body 30 during the closing process.

[0612] When the door 30 is closed to the angle G B1 Afterwards, the elastic energy stored in the elastic deformation of the hook portion 82 is gradually released, and under the combined action of the stopper 403, the hook portion 82 returns to the relaxed state and drives the hook portion 82 to further enter the hook gap 404, so that the door body 30 is automatically closed in place.

[0613] When the door 30 is closed, the lock hook 82 is locked with the hinge plate 40, so that the door 30 and the box body 10 are locked. B1 After that, the door body 30 has the characteristic of automatic closing.

[0614] It should be noted that the setting of the first hinge and the second hinge for accurately controlling the door body 30 to rotate open and move in a specific direction needs to form a structural setting with various trajectory characteristics. It is necessary to achieve the coordination of the first hinge and the second hinge through refined design, so as to finally achieve the precise control of the door body 30 to perform complex movements.

[0615] Figure 28 to Figure 4 2 is a schematic diagram of another implementation of the refrigerator of the utility model. In this implementation, the guide track line S is a curve.

[0616] In some embodiments of the present application, Fig.28 As shown, in the projection 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 plane where the first body side wall and the access opening are located.

[0617] In some embodiments of the present application, in the projection of the top wall of the box body 10, the second center axis Q is located on the side of the first center axis P away from the first body side wall and the access port, and the angle between the second center axis Q and the straight line QP where the first center axis P is located and the first body side wall is recorded as β.

[0618] β is not less than a first reference value. The first reference value is between 65° and 74°. The first reference value may be 65°, 70° or 74°. That is, β≥65° or β≥70° or β≥74°.

[0619] When β≥65°, the guide portion 50 and the guide portion 60 occupy a small thickness of the door body 30. When β≥70°, the guide portion 50 and the guide portion 60 occupy a small thickness of the door body 30. When β≥74°, the guide portion 50 and the guide portion 60 occupy a small thickness of the door body 30.

[0620] β is not greater than a second reference value. The second reference value is between 77° and 86°. The second reference value may be 77°, 81°, or 86°. That is, β≤77° or β≤81° or β≤86°.

[0621] When β≤77°, the strength requirements of the guide parts 50 and 60, the first shaft 41 and the second shaft 42 are better met. When β≤81°, the strength requirements of the guide parts 50 and 60, the first shaft 41 and the second shaft 42 are better met. When β≤86°, the strength requirements of the guide parts 50 and 60, the first shaft 41 and the second shaft 42 are met.

[0622] β is too small, and the distance between the first center axis P and the second center axis Q in the direction perpendicular to the door front wall 31 is too large; the guide part 50 cooperating with the first axis 41 and the guide part 42 cooperating with the second axis 42 occupy an increased dimension in the thickness direction of the door body 30, resulting in an increase in the thickness of the door body 30, which is not suitable for an ultra-thin door body 30.

[0623] β is too large, and the distance between the first center axis P and the second center axis Q in the direction perpendicular to the front wall 31 of the door is too small; the guide portion 50 and the guide portion 60 are arranged too compactly. In order to avoid the guide portion 60 of the guide portion 50 not being cross-connected, as a way, the track width of the guide portion 50 that cooperates with the first shaft 41 and the guide portion 60 that cooperates with the second shaft 42 can be reduced, and the diameter of the first shaft 41 and the second shaft 42 needs to be reduced accordingly. Reducing the diameter of the first shaft 41 and the second shaft 42 reduces the strength of the first shaft 41 and the second shaft 42, which can easily cause the hinge assembly to be damaged and fail. As another way, the diameter of the first shaft 41 and the second shaft 42 is ensured to ensure their strength, and the minimum distance (minimum wall thickness) between the guide portion 50 and the guide portion 60 will be reduced, resulting in a reduction in the strength of the guide portion 50 and the guide portion 60.

[0624] In some embodiments of the present application, the guide portion 50 is configured as a guide groove, and the guide portion 60 is configured as a guide groove.

[0625] In some embodiments of the present application, the guide groove is a curved groove. The guide groove is a curved groove. The guide groove is located on a side of the guide groove close to the first side edge W.

[0626] In some embodiments of the present application, along the direction from the door rear wall 33 to the door front wall 31 , the distance between the guide groove and the door side wall 32 gradually decreases.

[0627] In some embodiments of the present application, the guide groove protrudes toward the side close to the second side edge N.

[0628] In some embodiments of the present application, the trajectory line along which the guide portion 50 guides the relative movement of the first central axis P is the guide trajectory line S, and the trajectory line along which the guide portion 60 guides the relative movement of the second central axis Q is the guide trajectory line K.

[0629] The guide track line S is a curve and is located on a side of the guide track line K close to the first side edge W.

[0630] In some embodiments of the present application, the guide trajectory line S is the center trajectory line of the guide portion 50 , and the guide trajectory line K is the center trajectory line of the guide portion 60 .

[0631] When the guide portion 50 is configured as a guide groove structure, the center trajectory line of the guide groove is the guide trajectory line S. When the guide portion 60 is configured as a guide groove structure, the center trajectory line of the guide groove is the guide trajectory line K.

[0632] In some embodiments of the present application, along a direction from an end of the door body 30 away from the door side wall 32 to the door side wall 32 , a distance between the guide track line S and the door front wall 31 gradually decreases.

[0633] Along the direction from the end of the door body 30 away from the door side wall 32 to the door side wall 32, the distance between the guide track line K and the door front wall 31 first increases, then decreases, and then increases again.

[0634] In some embodiments of the present application, the guide track line S extends from one end thereof away from the door side wall 32 to a side close to the door front wall 31 and the door side wall 32 .

[0635] The guide track line K first extends from the side away from the door side wall 32 to the direction away from the door front wall 31 and close to the door side wall 32 , and then extends to the side close to the door front wall 31 and the door side wall 32 .

[0636] The guide track line S is located on a side of the guide track line K close to the first side edge W.

[0637] In some embodiments of the present application, the guide track line K includes a first guide segment and a second guide segment connected to an end of the first guide segment close to the door side wall 32. The first guide segment extends from an end away from the door side wall 32 to a direction close to the door side wall 32 and away from the door front wall 31, and the second guide segment extends from an end of the first guide segment close to the door side wall to a direction close to the door side wall 32 and the door front wall 31. That is, the second guide segment extends from an end away from the door side wall 32 to a direction close to the door side wall 32 and the door front wall 31.

[0638] In some embodiments of the present application, Figure 2As shown, in the projection of the plane where the top wall of the box body 10 (door body 30) is located, the door side wall 32 is the Y axis, and the plane passing through the first side edge W and perpendicular to the door side wall 32 is the X axis, that is, the plane where the door front wall 31 is located is the X axis (it can be set that the door front wall 31 is perpendicular to the door side wall 32); wherein, the X axis is perpendicular to the Y axis and intersects at the origin O (the first side edge W). The direction from the door front wall 31 to the door rear wall 33 is the positive direction of the Y axis, and the direction from the door side wall 32 to the opposite end of the door side wall 32 on the door body 30 is the positive direction of the X axis, forming a two-dimensional door body coordinate system XOY. It should be noted that the door body coordinate system XOY is a two-dimensional coordinate system that is stationary relative to the door body 30.

[0639] In the door body coordinate system XOY, the function corresponding to the guide trajectory line S in the coordinate system XOY is recorded as Y=F(X).

[0640] The first derivative of Y = F(X) is denoted by F` x , F` x > 0. Y = F (X) is a monotonically increasing function.

[0641] In some embodiments of the present application, the second-order derivative of Y=F(X) is denoted as F`` x , F`` x > 0. Y = F (X) is a convex function.

[0642] In some embodiments of the present application, in the door body coordinate system XOY, the function corresponding to the guide trajectory line K in the coordinate system XOY is recorded as Y=K(X); Y=K(X) is a piecewise function, and the piecewise function is a continuous function; then, at each segment point, its left limit is equal to its right limit.

[0643] In some embodiments of the present application, in the door body coordinate system XOY, Y=K(X) is as follows:

[0644]

[0645] Wherein, X1>X2>X3>0; K1(X2)=K2(X2);

[0646] Y=K1(X) is the function of the second guide segment in the coordinate system XOY;

[0647] Y=K2(X) is a function of the first guide segment in the coordinate system XOY.

[0648] like Figure 28-Figure 29 and Fig.36 As shown, under the constraints of the guide portion 50 and the first shaft 41, the guide portion 60 and the second shaft 42, the opening process of the door body 30 has a first stage. The first stage is as follows:

[0649] In some embodiments of the present application, the guide trajectory line S has a first guide point P1 and a second guide point P2 which are sequentially close to the door side wall 32 .

[0650] The first guide point P1 and the second guide point P2 are successively closer to the door front wall 31. That is, the distances between the first guide point P1 and the second guide point P2 and the door front wall 31 are successively reduced.

[0651] The guide track line S extends from the first guide point P1 to a side close to the door side wall 32 to a second guide point P2.

[0652] The guide track line S extends from the first guide point P1 to a side close to the door front wall 31 to a second guide point P2.

[0653] The guide track line S extends from the first guide point P1 to a side close to the door side wall 32 and the door front wall 31 to a second guide point P2.

[0654] In some embodiments of the present application, the guide track line K has a first guide point Q1 and a second guide point Q2 which are sequentially close to the door side wall 32 .

[0655] The first guide point Q1 and the second guide point Q2 are sequentially away from the door front wall 31. That is, the distances between the first guide point Q1 and the second guide point Q2 and the door front wall 31 are sequentially increased.

[0656] The guide track line K extends from the first guide point Q1 to the side close to the door side wall 32 to the second guide point Q2.

[0657] The guide track line K extends from the first guide point Q1 to a side away from the door front wall 31 to a second guide point Q2.

[0658] The guide track line K extends from the first guide point Q1 to a side close to the door side wall 32 and the door front wall 31 to a second guide point Q2.

[0659] When the door body 30 is opened from the first angle G1 to the second angle G2 , the first central axis P moves toward a side close to the door front wall 31 and the door side wall 32 .

[0660] When the door body 30 is opened from the first angle G1 to the second angle G2, the second central axis Q moves away from the door front wall 31 and closer to the door side wall 32. The first angle G1 is less than the second angle G2.

[0661] When the door body 30 is opened from the first angle G1 to the second angle G2, the first central axis P moves from the first guiding point P1 to the second guiding point P2.

[0662] When the door body 30 is opened from the first angle G1 to the second angle G2, the second central axis Q moves from the first guide point Q1 to the second guide point Q2.

[0663] In some embodiments of the present application, when the door body 30 opens from the first angle G1 to the second angle G2, the center point I of the axis moves from the first center point I1 to the side away from the door front wall 31 and close to the door side wall 32 to the second center point I2.

[0664] When the door body 30 is opened from the first angle G1 to the second angle G2 , the center point I of the axis moves away from the door front wall 31 and closer to the door side wall 32 .

[0665] In the opening process of the first stage above, the door body 30 opens at an angle of When , the first central axis P is located at the first guiding point P1 of the guiding trajectory line S, the second central axis Q is located at the first guiding point Q1 of the guiding trajectory line K, and the center point of the axis is located at the first midpoint I1.

[0666] Door body 30 opening angle When , the first central axis P is located at the second guide point P2 of the guide trajectory line S, the second central axis Q is located at the second guide point Q2 of the guide trajectory line K, and the center point of the axis is located at the second midpoint I2.

[0667] In some embodiments of the present application, G G =G1.

[0668] In some implementations of the present application, the first angle G1 = 0°.

[0669] In some embodiments of the present application, G G = G1 = 0°. At this time, when the opening angle of the door body 30 is the first angle G1 = 0°, the door body 30 is in a closed state.

[0670] The first stage is the process of the door body 30 opening from the first angle G1 to the second angle G2. G =G1 or G G = G1 = 0°) to G2. In this process, the first central axis P moves toward the side close to the door front wall 31 and the door side wall 32. The second central axis Q moves away from the door front wall 31 and toward the side close to the door side wall 32.

[0671] Specifically, the first central axis P moves from the first guiding point P1 to the second guiding point P2 along the guiding trajectory line S. The second central axis Q moves from the first guiding point Q1 to the second guiding point Q2 along the guiding trajectory line K.

[0672] In the above first stage of opening process, the second hinge member (guide portion 50 / guide portion 60 / door body 30) is used as a reference for description.

[0673] The door body 30 is at a first angle G1 (configurable, G G=G1 or G G = G1 = 0°) to the second angle G2, the axis line segment PQ rotates clockwise from P1Q1 and moves to P2Q2; that is, the movement trend of the axis line segment PQ is P1Q1→P2Q2. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I1→I2. That is, during the opening process of the door body 30, relative to the door body 30, the axis center point I moves away from the door front wall 31 and closer to the door side wall 32.

[0674] Since the guide part 50 and the guide 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. It is concluded that: taking the door body 30 as a reference, the door body 30 is moved from the first angle G1 (which can be set, G G =G1 or G G During the whole process of opening from the door body 30 to the second angle G2 (ie, from the door body 30 to the second angle G1), the box body 10 (ie, the hinge plate 40) keeps rotating clockwise relative to the door body 30 to open, and moves a certain distance toward the side away from the door front wall 31 and close to the door side wall 32.

[0675] In summary, the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to the second angle G2, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0676] According to the relativity of the movement, taking the box 10 as a reference, the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to the second angle G2, the door body 30 has a translational movement while rotating. The translational movement is specifically: relative to the door body 30, the box body 10 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 33 and pointing to the door front wall 31.

[0677] like Figure 29-Figure 30 and Fig.37 As shown, under the constraints of the guide portion 50 and the first shaft 41, the guide portion 60 and the second shaft 42, the opening process of the door body 30 has a second stage. The second stage is as follows:

[0678] In some embodiments of the present application, the guide trajectory line S has a third guide point P3.

[0679] The second guiding point P2 and the third guiding point P3 are respectively away from the door side wall 32 .

[0680] The second guide point P2 and the third guide point P3 are sequentially away from the door front wall 31. That is, the distances between the second guide point P2 and the third guide point P3 and the door front wall 31 are sequentially increased.

[0681] The guide track line S extends from the second guide point P2 to a side away from the door side wall 32 to a third guide point P3.

[0682] The guide track line S extends from the second guide point P2 to a side away from the door front wall 31 to a third guide point P3.

[0683] The guide track line S extends from the second guide point P2 to a side away from the door side wall 32 and the door front wall 31 to a third guide point P3.

[0684] In some embodiments of the present application, the third guiding point P3 is located on a side of the first guiding point P1 close to the door side wall 32 .

[0685] Then, the second guiding point P2 , the third guiding point P3 , and the first guiding point P1 are sequentially away from the door side wall 32 .

[0686] In some embodiments of the present application, the third guiding point P3 is located on a side of the first guiding point P1 close to the door front wall 31 .

[0687] Then, the second guiding point P2, the third guiding point P3, and the first guiding point P1 are sequentially away from the door front wall 31. That is, the distances between the second guiding point P2, the third guiding point P3, and the first guiding point P1 and the door front wall 31 are sequentially increased.

[0688] The guide track line S extends from the second guide point P2 to the side away from the door side wall 32 to the first guide point P1.

[0689] The guide track line S extends from the second guide point P2 to the side away from the door front wall 31 to the first guide point P1.

[0690] The guide trajectory line S extends from the second guide point P2 to the first guide point P1 via the third guide point P3.

[0691] In some embodiments of the present application, the guide trajectory line K has a third guide point Q3.

[0692] The second guide point Q2 and the third guide point Q3 are respectively close to the door side wall 32 .

[0693] The second guide point Q2 and the third guide point Q3 are sequentially away from the door front wall 31. That is, the distances between the second guide point Q2 and the third guide point Q3 and the door front wall 31 are sequentially increased.

[0694] The guide track line K extends from the second guide point Q2 to the side close to the door side wall 32 to the third guide point Q3.

[0695] The guide track line K extends from the second guide point Q2 to a side away from the door front wall 31 to a third guide point Q3.

[0696] The guide track line K extends from the second guide point Q2 to a side close to the door side wall 32 and the door front wall 31 to a third guide point Q3.

[0697] When the door body 30 is opened from the second angle G2 to the third angle G3 , the first central axis P moves toward a side away from the door front wall 31 and the door side wall 32 .

[0698] When the door body 30 is opened from the second angle G2 to the third angle G3, the second central axis Q moves away from the door front wall 31 and closer to the door side wall 32. The second angle G2 is less than the third angle G3.

[0699] When the door body 30 is opened from the second angle G2 to the third angle G3, the first central axis P moves from the second guiding point P2 to the third guiding point P3.

[0700] When the door body 30 is opened from the second angle G2 to the third angle G3, the second central axis Q moves from the second guide point Q2 to the third guide point Q3.

[0701] In some embodiments of the present application, when the door body 30 is opened from the second angle G2 to the third angle G3, the axis center point I moves from the second center point I2 to the side away from the door front wall 31 and close to the door side wall 32 to the third center point I3. The second angle G2 is less than the third angle G3.

[0702] During the second stage of opening, the door 30 opens at an angle of When , the first central axis P is located at the second guide point P2 of the guide trajectory line S, the second central axis Q is located at the second guide point Q2 of the guide trajectory line K, and the center point of the axis is located at the second midpoint I2.

[0703] Door body 30 opening angle When , the first central axis P is located at the third guide point P3 of the guide trajectory line S, the second central axis Q is located at the third guide point Q3 of the guide trajectory line K, and the center point of the axis is located at the third midpoint I3.

[0704] The second stage is the process of the door body 30 opening from the second angle G2 to the third angle G3. In the process of the door body 30 opening from the second angle G2 to G3, the first central axis P moves away from the door front wall 31 and the door side wall 32. The second central axis Q moves away from the door front wall 31 and close to the door side wall 32.

[0705] Specifically, when the door body 30 opens from the second angle G2 to the third angle G3, the first central axis P moves from the second guide point P2 to the third guide point P3 along the guide track line S. The second central axis Q moves from the second guide point Q2 to the third guide point Q3 along the guide track line K.

[0706] In the above second stage of opening process, the second hinge member (guide portion 50 / guide portion 60 / door body 30) is used as a reference for description.

[0707] When the door body 30 is opened from the second angle G2 to the third angle G3, the axis line segment PQ rotates clockwise from P2Q2 and moves to P3Q3; that is, the movement trend of the axis line segment PQ is P2Q2→P3Q3. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I2→I3. That is, when the door body 30 is opened, relative to the door body 30, the axis center point I moves away from the door front wall 31 and closer to the door side wall 32.

[0708] Since the guide portion 50 and the guide portion 60 are disposed on the door body 30, the axis line segment PQ represents the movement of the hinge plate 40 disposed on the box body 10. It is concluded that: taking the door body 30 as a reference, during the entire process of the door body 30 opening from the second angle G2 to the third angle G3, 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 to the side away from the door front wall 31 and close to the door side wall 32.

[0709] In summary, when the door body 30 is opened from the second angle G2 to the third angle G3, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0710] According to the relativity of motion, taking the box body 10 as a reference, when the door body 30 is opened from the second angle G2 to the third angle G3, the door body 30 has a translational motion while rotating. The translational motion is as follows: relative to the door body 30, the box body 10 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 33 and pointing to the door front wall 31.

[0711] like Figure 30-Figure 31 and Fig.38 As shown, under the constraints of the guide portion 50 and the first shaft 41, the guide portion 60 and the second shaft 42, the opening process of the door body 30 has a third stage. The third stage is as follows:

[0712] In some embodiments of the present application, the guide trajectory line S has a fourth guide point P4, a fifth guide point P5, and a sixth guide point P6 which are successively close to the door side wall 32.

[0713] The third guiding point P3, the fourth guiding point P4, the fifth guiding point P5, and the sixth guiding point P6 are sequentially close to the door side wall 32. The third guiding point P3, the fourth guiding point P4, the fifth guiding point P5, and the sixth guiding point P6 are sequentially close to the door front wall 31.

[0714] According to the relative position relationship between the first guiding point P1 and the third guiding point P3 , the first guiding point P1 , the third guiding point P3 , the fourth guiding point P4 , the fifth guiding point P5 , and the sixth guiding point P6 are sequentially close to the door side wall 32 .

[0715] The first guide point P1, the third guide point P3, the fourth guide point P4, the fifth guide point P5, and the sixth guide point P6 are successively close to the door front wall 31. That is, the distances between the first guide point P1, the third guide point P3, the fourth guide point P4, the fifth guide point P5, and the sixth guide point P6 and the door front wall 31 are successively reduced.

[0716] The guide track line S extends from the third guide point P3 to a side close to the door side wall 32 to a sixth guide point P6.

[0717] The guide track line S extends from the third guide point P3 to a side close to the door front wall 31 to a sixth guide point P6.

[0718] The guide trajectory line S extends from the third guide point P3 to the sixth guide point P6 via the fourth guide point P4 and the fifth guide point P5 in sequence.

[0719] In some embodiments of the present application, the sixth guiding point P6 is located on a side of the second guiding point P2 close to the door side wall and the door front wall.

[0720] In some embodiments of the present application, the guide track line K has a fourth guide point Q4, a fifth guide point Q5, and a sixth guide point Q6 which are successively close to the door side wall 32.

[0721] Among them, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, and the sixth guide point Q6 are close to the door side wall 32 in sequence.

[0722] The third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, and the sixth guide point Q6 are sequentially away from the door front wall 31. That is, the distances between the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, and the sixth guide point Q6 and the door front wall 31 increase sequentially.

[0723] The guide track line K extends from the third guide point Q3 to the side close to the door side wall 32 to the sixth guide point Q6.

[0724] The guide track line K extends from the third guide point Q3 to a side away from the door front wall 31 to a sixth guide point Q6.

[0725] The guide trajectory line K extends from the third guide point Q3 to the sixth guide point Q6 through the fourth guide point Q4 and the fifth guide point Q5 in sequence.

[0726] According to the relative position relationship of the aforementioned guide points, the first guide point Q1 , the second guide point Q2 , the third guide point Q3 , the fourth guide point Q4 , the fifth guide point Q5 , and the sixth guide point Q6 are successively close to the door side wall 32 .

[0727] The first guide point Q1 , the second guide point Q2 , the third guide point Q3 , the fourth guide point Q4 , the fifth guide point Q5 , and the sixth guide point Q6 are sequentially away from the door front wall 31 .

[0728] When the door body 30 is opened from the third angle G3 to the sixth angle G6 , the first central axis P moves toward a side close to the door front wall 31 and the door side wall 32 .

[0729] When the door body 30 is opened from the third angle G3 to the sixth angle G6, the second central axis Q moves away from the door front wall 31 and closer to the door side wall 32. The third angle G3 is less than the sixth angle G6.

[0730] When the door body 30 is opened from the third angle G3 to the sixth angle G6, the first central axis P moves from the third guiding point P3 to the sixth guiding point P6 via the fourth guiding point P4 and the fifth guiding point P5 in sequence.

[0731] When the door body 30 is opened from the third angle G3 to the sixth angle G6, the second central axis Q moves from the third guide point Q3 to the sixth guide point Q6 via the fourth guide point Q4 and the fifth guide point Q5 in sequence.

[0732] In some embodiments of the present application, when the door body 30 is opened from the third angle G3 to the fifth angle G5, the axis center point I moves from the third center point I3 to the side away from the door front wall 31 and close to the door side wall 32 to the fifth center point I5. The third angle G3 is less than the fifth angle G5.

[0733] When the door body 30 is opened from the fifth angle G5 to the sixth angle G6, the axis center point I moves from the fifth center point I5 to the side close to the door front wall 31 and the door side wall 32 to the sixth center point I6. The fifth angle G5 is smaller than the sixth angle G6.

[0734] When the door body 30 is opened from the third angle G3 to the sixth angle G6, the center point I of the axis moves from the third center point I3 to the sixth center point I6 via the fourth center point I4 and the fifth center point I5 in sequence.

[0735] When the door body 30 is opened from the third angle G3 to the sixth angle G6, the center point I of the axis first moves away from the door front wall 31 and close to the door side wall 32, and then moves to the side close to the door front wall 31 and the door side wall 32.

[0736] Among them, the third angle G3<fourth angle G4<fifth angle G5<sixth angle G6.

[0737] In the third stage of opening, the door body 30 opens at an angle of When , the first central axis P is located at the third guide point P3 of the guide trajectory line S, the second central axis Q is located at the third guide point Q3 of the guide trajectory line K, and the center point of the axis is located at the third midpoint I3.

[0738] Door body 30 opening angle When , the first central axis P is located at the fourth guide point P4 of the guide trajectory line S, the second central axis Q is located at the fourth guide point Q4 of the guide trajectory line K, and the center point of the axis is located at the fourth midpoint I4.

[0739] Door body 30 opening angle When , the first central axis P is located at the fifth guide point P5 of the guide trajectory line S, the second central axis Q is located at the fifth guide point Q5 of the guide trajectory line K, and the center point of the axis is located at the fifth midpoint I5.

[0740] Door body 30 opening angle When , the first central axis P is located at the sixth guide point P6 of the guide trajectory line S, the second central axis Q is located at the sixth guide point Q6 of the guide trajectory line K, and the midpoint of the axis is located at the sixth midpoint I6.

[0741] The third stage is the process of the door body 30 opening from the third angle G3 to the sixth angle G6. The door body 30 opens from the third angle G3 to G6 through G4 and G5 in sequence. In this process, the first central axis P moves toward the side close to the door front wall 31 and the door side wall 32, and the second central axis Q moves away from the door front wall 31 and close to the door side wall 32.

[0742] Specifically, when the door body 30 is opened from the third angle G3 to the sixth angle G6, the first central axis P moves from the third guide point P3 along the guide trajectory line S to the sixth guide point P6 via the fourth guide point P4 and the fifth guide point P5. The second central axis Q moves from the third guide point Q3 along the guide trajectory line K to the sixth guide point Q6 via the fourth guide point Q4 and the fifth guide point Q5.

[0743] In the above third stage of opening process, the second hinge member (guide portion 50 / guide portion 60 / door body 30) is used as a reference for description.

[0744] When the door body 30 is opened from the third angle G3 to the sixth angle G6, the axis line segment PQ rotates clockwise from P3Q3 and moves to P4Q4, P5Q5, and P6Q6 in sequence; that is, the movement trend of the axis line segment PQ is P3Q3→P4Q4→P5Q5→P6Q6. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I3→I4→I5→I6. That is, when the door body 30 is opened, relative to the door body 30, the axis center point I first moves to the side away from the door front wall 31 and close to the door side wall 32, and then moves to the side close to the door front wall 31 and the door side wall 32.

[0745] Since the guide part 50 and the guide 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. It is concluded that: taking the door body 30 as a reference, during the whole process of the door body 30 opening from the third angle G3 to the sixth angle G6, the box body 10 (i.e., the hinge plate 40) keeps rotating clockwise relative to the door body 30 to open, and first moves a certain distance to the side away from the door front wall 31 and close to the door side wall 32, and then moves a certain distance to the side close to the door front wall 31 and the door side wall 32.

[0746] In summary, when the door body 30 is opened from the third angle G3 to the fifth angle G5, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0747] When the door body 30 is opened from the fifth angle G5 to the sixth angle G6, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the door front wall 31.

[0748] According to the relativity of motion, taking the box body 10 as a reference, when the door body 30 is opened from the third angle G3 to the fifth angle G5, the door body 30 has a translational motion while rotating. The translational motion is as follows: relative to the door body 30, the box body 10 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 33 and pointing to the door front wall 31.

[0749] When the door body 30 is opened from the fifth angle G5 to the sixth angle G6, the door body 30 has a translational motion while rotating. The translational motion is as follows: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0750] like Figure 33-Figure 34 and Fig.39 As shown, under the constraints of the guide portion 50 and the first shaft 41, the guide portion 60 and the second shaft 42, the opening process of the door body 30 has a fourth stage. The fourth stage is as follows:

[0751] In some embodiments of the present application, the guide trajectory line S has a seventh guide point P7.

[0752] The sixth guiding point P6 and the seventh guiding point P7 are respectively close to the door side wall 32. The sixth guiding point P6 and the seventh guiding point P7 are respectively close to the door front wall 31.

[0753] The guide track line S extends from the sixth guide point P6 to a side close to the door side wall 32 to a seventh guide point P7.

[0754] The guide track line S extends from the sixth guide point P6 to a side close to the door front wall 31 to a seventh guide point P7.

[0755] According to the relative position relationship of the aforementioned first guide point P1, third guide point P3, fourth guide point P4, fifth guide point P5 and sixth guide point P6, the first guide point P1, third guide point P3, fourth guide point P4, fifth guide point P5, sixth guide point P6 and seventh guide point P7 are respectively close to the door side wall 32.

[0756] The first guide point P1, the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, and the seventh guide point P7 are sequentially close to the door front wall 31. That is, the distances between the first guide point P1, the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, and the seventh guide point P7 and the door front wall 31 are sequentially reduced.

[0757] The guide track line S extends from the first guide point P1 to a side close to the door side wall 32 to a seventh guide point P7.

[0758] The guide track line S extends from the first guide point P1 to a side close to the door front wall 31 to a seventh guide point P7.

[0759] The guide trajectory line S extends from the first guide point P1 to the seventh guide point P7 through the third guide point P3 , the fourth guide point P4 , the fifth guide point P5 , the sixth guide point P6 in sequence.

[0760] In some embodiments of the present application, the seventh guiding point P7 is located on a side of the second guiding point P2 close to the door side wall 32 .

[0761] The seventh guiding point P7 is located on a side of the second guiding point P2 close to the door front wall 31 .

[0762] The sixth guide point P6 is located on a side of the second guide point P2 away from the door side wall 32 .

[0763] The sixth guiding point P6 is located on a side of the second guiding point P2 away from the door front wall 31 .

[0764] Then, the guide trajectory line S extends from the first guide point P1 through the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, the second guide point P2 to the seventh guide point P7.

[0765] In some embodiments of the present application, the guide track line K has a seventh guide point Q7 close to the door side wall 32 .

[0766] Among them, the sixth guide point Q6 and the seventh guide point Q7 are respectively close to the door side wall 32 .

[0767] The sixth guide point Q6 and the seventh guide point Q7 are successively closer to the door front wall 31. That is, the distances between the sixth guide point Q6 and the seventh guide point Q7 and the door front wall 31 are successively reduced.

[0768] The guide track line K extends from the sixth guide point Q6 to the side close to the door side wall 32 to the seventh guide point Q7.

[0769] The guide track line K extends from the sixth guide point Q6 to the side close to the door front wall 31 to the seventh guide point Q7.

[0770] When the door body 30 is opened from the sixth angle G6 to the seventh angle G7 , the first central axis P moves toward a side close to the door front wall 31 and the door side wall 32 .

[0771] When the door body 30 is opened from the sixth angle G6 to the seventh angle G7, the second central axis Q moves toward the side close to the door front wall 31 and the door side wall 32. The sixth angle G6 is smaller than the seventh angle G7.

[0772] When the door body 30 is opened from the sixth angle G6 to the seventh angle G7, the first central axis P moves from the sixth guide point Q6 to the seventh guide point P7.

[0773] When the door body 30 is opened from the sixth angle G6 to the seventh angle G7, the second central axis Q moves from the sixth guide point Q6 to the seventh guide point Q7.

[0774] In some embodiments of the present application, when the door body 30 opens from the sixth angle G6 to the seventh angle G7, the center point I of the axis moves from the sixth center point I6 to the side close to the door front wall 31 and the door side wall 32 to the seventh center point I7.

[0775] When the door body 30 is opened from the sixth angle G6 to the seventh angle G7, the center point I of the axis moves toward the side close to the door front wall 31 and the door side wall 32.

[0776] In the fourth stage of opening, the door body 30 opens at an angle of When , the first central axis P is located at the sixth guide point P6 of the guide trajectory line S, the second central axis Q is located at the sixth guide point Q6 of the guide trajectory line K, and the midpoint of the axis is located at the sixth midpoint I6.

[0777] Door body 30 opening angle When , the first central axis P is located at the seventh guide point P7 of the guide trajectory line S, the second central axis Q is located at the seventh guide point Q7 of the guide trajectory line K, and the center point of the axis is located at the seventh midpoint I7.

[0778] The fourth stage is the process of the door body 30 opening from the sixth angle G6 to the seventh angle G7. In the process of the door body 30 opening from the sixth angle G6 to G7, the first central axis P moves toward the side close to the door front wall 31 and the door side wall 32, and the second central axis Q moves toward the side close to the door front wall 31 and the door side wall 32.

[0779] Specifically, when the door body 30 opens from the sixth angle G6 to the seventh angle G7, the first central axis P moves from the sixth guide point P6 to the seventh guide point P7 along the guide track line S. The second central axis Q moves from the sixth guide point Q6 to the seventh guide point Q7 along the guide track line K.

[0780] The opening process in the fourth stage is described with reference to the second hinge member (the guide portion 50 / the guide portion 60 / the door body 30 ).

[0781] When the door body 30 is opened from the sixth angle G6 to the seventh angle G7, the axis line segment PQ rotates clockwise from P6Q6 and moves to P7Q7; that is, the movement trend of the axis line segment PQ is P6Q6→P7Q7. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I6→I7. That is, when the door body 30 is opened, relative to the door body 30, the axis center point I moves toward the side close to the door front wall 31 and the door side wall 32.

[0782] Since the guide part 50 and the guide 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. It is concluded that: taking the door body 30 as a reference, during the whole process of the door body 30 opening from the sixth angle G6 to the seventh angle G7, 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 to the side close to the door front wall 31 and the door side wall 32.

[0783] In summary, when the door body 30 is opened from the sixth angle G6 to the seventh angle G7, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the door front wall 31.

[0784] According to the relativity of motion, taking the box body 10 as a reference, when the door body 30 is opened from the sixth angle G6 to the seventh angle G7, the door body 30 has a translational motion while performing a rotational motion. The translational motion is specifically: relative to the door body 30, the box body 10 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 33 and pointing to the side away from the door front wall 31.

[0785] like Figure 34-Figure 35 and Fig.40 As shown, under the constraints of the guide portion 50 and the first shaft 41, the guide portion 60 and the second shaft 42, the opening process of the door body 30 has a fifth stage. The fifth stage is as follows:

[0786] In some embodiments of the present application, the guide trajectory line S has an eighth guide point P8.

[0787] The seventh guiding point P7 and the eighth guiding point P8 are respectively far away from the door side wall 32. The seventh guiding point P7 and the eighth guiding point P8 are respectively far away from the door front wall 31.

[0788] The guide trajectory line S extends from the seventh guide point P7 to a side away from the door side wall 32 to an eighth guide point P8.

[0789] The guide track line S extends from the seventh guide point P7 to the eighth guide point P8 toward the side away from the door front wall 31. That is, the distances between the seventh guide point P7 and the eighth guide point P8 and the door front wall 31 increase successively.

[0790] In some embodiments of the present application, the eighth guiding point P8 is located on a side of the second guiding point P2 close to the door side wall 32 .

[0791] The eighth guiding point P8 is located on a side of the second guiding point P2 close to the door front wall 31 .

[0792] Then, the guide trajectory line S extends from the first guide point P1 through the second guide point P2 and the eighth guide point P8 to the seventh guide point P7.

[0793] In some embodiments of the present application, the guide track line K has an eighth guide point Q8 close to the door side wall 32 .

[0794] Among them, the seventh guide point Q7 and the eighth guide point Q8 are respectively close to the door side wall 32 .

[0795] The seventh guide point Q7 and the eighth guide point Q8 are successively closer to the door front wall 31. That is, the distances between the seventh guide point Q7 and the eighth guide point Q8 and the door front wall 31 are successively reduced.

[0796] The guide track line K extends from the seventh guide point Q7 to the side close to the door side wall 32 to the eighth guide point Q8.

[0797] The guide track line K extends from the seventh guide point Q7 to the side close to the door front wall 31 to the eighth guide point Q8.

[0798] When the door body 30 is opened from the seventh angle G7 to the eighth angle G8, the first central axis P moves toward a side away from the door front wall 31 and the door side wall 32 .

[0799] When the door body 30 is opened from the seventh angle G7 to the eighth angle G8, the second central axis Q moves toward the side close to the door front wall 31 and the door side wall 32. The seventh angle G7 is smaller than the eighth angle G8.

[0800] When the door body 30 is opened from the seventh angle G7 to the eighth angle G8, the first central axis P moves from the seventh guide point Q7 to the eighth guide point P8.

[0801] When the door body 30 is opened from the seventh angle G7 to the eighth angle G8, the second central axis Q moves from the seventh guide point Q7 to the eighth guide point Q8.

[0802] In some embodiments of the present application, during the process of the door body 30 opening from the seventh angle G7 to the eighth angle G8, the axis center point I moves from the seventh center point I7 to the side away from the door front wall 31 and close to the door side wall 32 to the eighth center point I8.

[0803] When the door body 30 is opened from the seventh angle G7 to the eighth angle G8, the center point I of the axis moves away from the door front wall 31 and closer to the door side wall 32.

[0804] In the fifth stage of opening, the door body 30 opens at an angle of When , the first central axis P is located at the seventh guide point P7 of the guide trajectory line S, the second central axis Q is located at the seventh guide point Q7 of the guide trajectory line K, and the center point of the axis is located at the seventh midpoint I7.

[0805] Door body 30 opening angle When , the first central axis P is located at the eighth guide point P8 of the guide trajectory line S, the second central axis Q is located at the eighth guide point Q8 of the guide trajectory line K, and the center point of the axis is located at the eighth midpoint I8.

[0806] The fifth stage is the process of the door body 30 opening from the seventh angle G7 to the eighth angle G8. The door body 30 opens from the seventh angle G7 to G8. In this process, the first central axis P moves away from the door front wall 31 and the door side wall 32, and the second central axis Q moves toward the side close to the door front wall 31 and the door side wall 32.

[0807] Specifically, when the door body 30 opens from the seventh angle G7 to the eighth angle G8, the first central axis P moves from the seventh guide point P7 to the eighth guide point P8 along the guide track line S. The second central axis Q moves from the seventh guide point Q7 to the eighth guide point Q8 along the guide track line K.

[0808] In the opening process of the fifth stage above, the second hinge member (the guide portion 50 / the guide portion 60 / the door body 30 ) is used as a reference for explanation.

[0809] When the door body 30 is opened from the seventh angle G7 to the eighth angle G8, the axis line segment PQ rotates clockwise from P7Q7 and moves to P8Q8; that is, the movement trend of the axis line segment PQ is P7Q7→P8Q8. At the same time, the movement trend of the axis center point I as the axis line segment PQ moves is I7→I8. That is, when the door body 30 is opened, relative to the door body 30, the axis center point I moves away from the door front wall 31 and closer to the door side wall 32.

[0810] Since the guide portion 50 and the guide portion 60 are disposed on the door body 30, the axis line segment PQ represents the movement of the hinge plate 40 disposed on the box body 10. It is concluded that: taking the door body 30 as a reference, during the entire process of the door body 30 opening from the seventh angle G7 to the eighth angle G8, 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 to the side away from the door front wall 31 and close to the door side wall 32.

[0811] In summary, when the door body 30 is opened from the seventh angle G7 to the eighth angle G8, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a translational motion while rotating relative to the door body 30. The translational motion is specifically: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0812] According to the relativity of motion, taking the box body 10 as a reference, when the door body 30 is opened from the seventh angle G7 to the eighth angle G8, the door body 30 has a translational motion while performing a rotational motion. The translational motion is specifically: relative to the door body 30, the box body 10 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 33 and pointing to the door front wall 31.

[0813] In some embodiments of the present application, the first guide point P1, the second guide point P2, the third guide point P3, the fourth guide point P4, the fifth guide point P5, the sixth guide point P6, the seventh guide point P7, and the eighth guide point P8 are located on the guide trajectory line S.

[0814] Along the direction from the door rear wall 33 to the door front wall 31 , the distance between the guide track line S and the door side wall 32 gradually decreases.

[0815] In some embodiments of the present application, the guide track line S is a curve. The guide track line S is convex toward a side close to the second side edge N.

[0816] In some embodiments of the present application, the straight line where the first guide point P1 and the seventh guide point P7 are located is recorded as straight line P1P7; the angle between the straight line P1P7 and the door front wall 31 is recorded as λ;

[0817] Wherein, λ is not less than the first angle reference value; the first angle reference value is between 32° and 38°. The first angle reference value may be 32°, 35° or 38°. That is, λ≥32° or λ≥35° or λ≥38°.

[0818] When λ≥32°, the fixing space requirement of the mounting block and the small thickness of the door body 30 occupied by the mounting block are met. When λ≥35°, the fixing space requirement of the mounting block and the small thickness of the door body 30 occupied by the mounting block are better met. When λ≥38°, the fixing space requirement of the mounting block and the small thickness of the door body 30 occupied by the mounting block are better met.

[0819] λ is not greater than the second angle reference value; the second angle reference value is 40° to 46°. The first angle reference value may be 40°, 43° or 46°. That is, λ≤40° or λ≤43° or λ≤46°.

[0820] When λ≤40°, the wall thickness requirement between the guide portion 50 and the guide portion 60 is better met. When λ≤43°, the wall thickness requirement between the guide portion 50 and the guide portion 60 is better met. When λ≤46°, the wall thickness requirement between the guide portion 50 and the guide portion 60 is met.

[0821] λ is too large, resulting in the wall thickness between the guide part 50 and the guide part 60 being too thin, reducing the strength of the guide part 50 and the guide part 60. In addition, when the distance between the end of the guide part 50 away from the door side wall 31 and the door front wall 31 is relatively large, the size of the guide part 60 in the direction perpendicular to the door front wall 31 increases synchronously, and the size of the overall trajectory of the guide part 50 and the guide part 60 in the direction perpendicular to the door front wall 31 becomes larger, resulting in an increase in the thickness of the door body 30, affecting its use on ultra-thin refrigerators. Furthermore, the thickness of the door body 30 is too large, resulting in an increase in the obstruction of the door body 30 to the access port; and in order to ensure that the drawer installed in the storage room can be pulled out, it is necessary to reduce the lateral width of the drawer, resulting in the drawer being unable to effectively utilize the lateral space of the storage room.

[0822] If λ is too small, there will be insufficient space for screws (not limited to screw fixing, any conventional fixing method that can fix two parts) between the two tracks of the guide part 50 and the guide part 60 on the mounting block. In order to meet the fixing requirements, it is necessary to increase the area of ​​the mounting block; and in order to ensure the fixing strength of the mounting block, it is particularly necessary to increase the size of the mounting block in the direction perpendicular to the front wall 31 of the door to increase the position for screws (not limited to screw fixing, any conventional fixing method that can fix two parts). The increase in the size of the mounting block in the direction perpendicular to the front wall 31 of the door will increase the thickness of the door body 30 that matches it, affecting its use on ultra-thin refrigerators. Furthermore, the thickness of the door body 30 is too large, resulting in an increase in the obstruction of the door body 30 to the access port; and in order to ensure that the drawer installed in the storage room can be pulled out, it is necessary to reduce the lateral width of the drawer, resulting in the drawer being unable to effectively utilize the lateral space of the storage room.

[0823] In some embodiments of the present application, when the door body 30 is opened from the first angle G1 to the eighth angle G8, when the door body 30 is opened to the first angle G1, the first central axis P is located at the first guide point P1 of the guide trajectory line S. On the guide trajectory line S, the distance between the first guide point P1 and the door side wall 32 is the largest. On the guide trajectory line S, the distance between the first guide point P1 and the door front wall 31 is the largest.

[0824] In some embodiments of the present application, when the door body 30 is opened from the first angle G1 to the eighth angle G8, when the door body 30 is opened to the seventh angle G7, the first central axis P is located at the seventh guide point P7 of the guide trajectory line S. On the guide trajectory line S, the distance between the seventh guide point P7 and the door side wall 32 is the smallest. On the guide trajectory line S, the distance between the seventh guide point P7 and the door front wall 31 is the smallest.

[0825] In some embodiments of the present application, the guide trajectory line S extends from the first guide point P1 to a side close to the door side wall 32 to a seventh guide point P7.

[0826] The guide track line S extends from the first guide point P1 to a side close to the door front wall 31 to a seventh guide point P7.

[0827] The second guide point P2 , the third guide point P3 , the fourth guide point P4 , the fifth guide point P5 , the sixth guide point P6 , and the eighth guide point P8 are located on the guide trajectory line S and between the first guide point P1 and the seventh guide point P7 .

[0828] In some embodiments of the present application, the first angle G1<the second angle G2<the third angle G3<the fourth angle G4=90°<the fifth angle G5<the sixth angle G6<the seventh angle G7<the eighth angle G8.

[0829] In some embodiments of the present application, when the door body 30 is opened to G4 = 90°, the door front wall 31 is flush with the first body side wall. "Flush" includes the situation where the distance between the two planes of the door front wall 31 and the first body side wall is not greater than 3 mm.

[0830] In some embodiments of the present application, the first guide point Q1, the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, the seventh guide point Q7, and the eighth guide point Q8 are located on the guide trajectory line K.

[0831] In some embodiments of the present application, the guide track line K extends from the first guide point Q1 to a side close to the door side wall 32 to an eighth guide point Q8.

[0832] The guide trajectory line K extends from the first guide point Q1 to the side away from the door front wall 31 to the sixth guide point Q6, then extends from the sixth guide point Q6 to the side close to the door front wall 31 to the seventh guide point Q7, and then extends from the seventh guide point Q7 to the side away from the door front wall 31 to the eighth guide point Q8.

[0833] The guide trajectory line K extends from the first guide point Q1 to the eighth guide point Q8 through the second guide point Q2, the third guide point Q3, the fourth guide point Q4, the fifth guide point Q5, the sixth guide point Q6, and the seventh guide point Q7.

[0834] In some embodiments of the present application, the guide trajectory line K first extends from the first guide point Q1 to the side away from the door front wall 31 and close to the door side wall 32 to the sixth guide point Q6, then extends from the sixth guide point Q6 to the side close to the door front wall 31 and the door side wall 32 to the seventh guide point Q7, and then extends from the seventh guide point Q7 to the side away from the door front wall 31 and close to the door side wall 32 to the eighth guide point Q8.

[0835] Along the direction from the end of the door body 30 away from the door side wall 32 to the door side wall 32, the distance between the guide track line K and the door front wall 31 first increases, then decreases, and then increases again.

[0836] In some embodiments of the present application, the eighth guide point Q8 is located on the side of the sixth guide point Q6 close to the door side wall 32 and the door front wall 31 .

[0837] The sixth guide point Q6 is the point where the distance between the guide trajectory line K and the door front wall 31 is the largest.

[0838] In some embodiments of the present application, the first guide point P1 is located on a side of the first guide point Q1 close to the door rear wall 33 and the door side wall 32. The sixth guide point P6 is located on a side of the sixth guide point Q6 close to the door front wall 31 and the door side wall 32. The eighth guide point P8 is located on a side of the eighth guide point Q8 close to the door front wall 31 and away from the door side wall 32.

[0839] Combining the situations in the first stage, the second stage, the third stage, the fourth stage and the fifth stage, it can be known that: in the process of the door body 30 opening from the first angle G1 to the eighth angle G8, the first axis 41 first moves toward the direction close to the door front wall 31 and the door side wall 32 (G1~G2), and then moves in the opposite direction away from the door front wall 31 and the door side wall 32 (G2~G3), and then moves in the opposite direction toward the door front wall 31 and the door side wall 32 (G3~G7), and then moves in the opposite direction away from the door front wall 31 and the door side wall 32 (G7~G8). In summary, in the process of the door body 30 opening from the first angle G1 to the eighth angle G8, the first axis 41 turns three times relative to the movement direction of the door body 30. The hinge assembly with the above trajectory characteristics reduces the size of the guide portion 50 and makes full use of the small-sized guide portion 50 to complete the opening of the door body 30 at a large angle.

[0840] Combining the situations in the first, second, third, fourth and fifth stages, it can be seen that: according to the relativity of motion, with the box body 10 as a reference, the door body 30 has a translational motion while rotating. The translational displacement component of the translational motion includes a displacement component parallel to the door rear wall 33 and a displacement component parallel to the door side wall 32. Among them, the displacement component parallel to the door rear wall 33 is recorded as the first direction displacement The displacement component parallel to the door side wall 32 is the second displacement direction In different opening stages of the door body 30, the first direction displacement and the second direction displacement There will be differences in the direction.

[0841] In summary, the movement process of the first central axis P and the second central axis Q of the door body 30 during the first stage to the fifth stage, and the movement trend of the synchronous axis center point I, can reveal the movement process of the axis center point I.

[0842] Specifically, Fig.41 As shown, the movement process of the axis center point I relative to the door body 30 includes a first axis trajectory segment.

[0843] First axis trajectory segment: when the door body 30 is opened from the first angle G1 to the fifth angle G5, the axis center point I moves away from the door front wall 31 and closer to the door side wall 32.

[0844] The axis center point I moves from the second center point I2 to the side away from the door front wall 31 and close to the door side wall 32 through the third center point I3 and the fourth center point I4 to the fifth center point I5.

[0845] Taking the box body 10 as a reference, when the door body 30 is opened from the first angle G1 to the fifth angle G5, the door body 30 has a translational motion while rotating. The translational motion is as follows: relative to the door body 30, the box body 10 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 33 and pointing to the door front wall 31.

[0846] When the door body 30 is opened from the first angle G1 to the fifth angle G5, the first direction displacement Pointing away from the door side wall 32, the second direction displacement Point to the side of the door front wall 31.

[0847] In some embodiments of the present application, the difference between the fifth angle G5 and 90° is denoted as ΔG5;

[0848] Wherein, ΔG5 is not less than the first reference difference; the first reference difference is between 0° and 2°. The first reference difference may be 0°, 1° or 2°. That is, ΔG5≥0° or ΔG5≥1° or ΔG5≥2°.

[0849] When ΔG5≥0°, the door body 30 meets the requirements for shielding the access opening. When ΔG5≥1°, the door body 30 meets the requirements for shielding the access opening better. When ΔG5≥2°, the door body 30 meets the requirements for shielding the access opening better.

[0850] ΔG5 is not greater than the second reference difference; the second reference difference is between 3° and 6°. The second reference difference may be 3°, 4° or 6°. That is, ΔG5≤3° or ΔG5≤4° or ΔG5≤6°.

[0851] When ΔG5≤3°, the maximum angle requirement of the door body 30 of the refrigerator placed in the storage cabinet 100 can be better met. When ΔG5≤4°, the maximum angle requirement of the door body 30 of the refrigerator placed in the storage cabinet 100 can be better met. When ΔG5≤6°, the maximum angle requirement of the door body 30 of the refrigerator placed in the storage cabinet 100 can be met.

[0852] Among them, ΔG8 is too small, and after the door body 30 is opened to 90°, the outward displacement is too small, and the door body 30 blocks a large amount of the access opening, which is inconvenient for users to take and place items.

[0853] ΔG5 is too large. After the door body 30 is opened to 90°, the outward displacement is too large. The distance between the door body 30 and the storage cabinet 100 is too close. The maximum angle that the door body 30 of the refrigerator placed in the storage cabinet 100 can be opened is reduced, which is not conducive to opening the door body 30 to a larger angle. It is especially inconvenient for users to take and place items placed inside the door body 30.

[0854] like Fig.41 As shown, the movement process of the axis center point I relative to the door body 30 includes a second axis trajectory segment.

[0855] Second axis trajectory segment: when the door body 30 is opened from the fifth angle G5 to the seventh angle G7, the axis center point I moves toward the side close to the door front wall 31 and the door side wall 32.

[0856] The axis center point I moves from the fifth center point I5 to the side close to the door front wall 31 and the door side wall 32 through the sixth center point I6 to the seventh center point I7.

[0857] Taking the box body 10 as a reference, when the door body 30 is opened from the fifth angle G5 to the seventh angle G7, the door body 30 has a translational motion while rotating. The translational motion is as follows: relative to the door body 30, the box body 10 has a displacement parallel to the door rear wall 33 and pointing away from the door side wall 32, and a displacement parallel to the door side wall 33 and pointing away from the door front wall 31.

[0858] When the door body 30 is opened from the fifth angle G5 to the seventh angle G7, the first direction displacement Pointing away from the door side wall 32, the second direction displacement It points to the side away from the front wall 31 of the door.

[0859] like Fig.41As shown, the movement process of the axis center point I relative to the door body 30 includes a third axis trajectory segment.

[0860] The third axis trajectory segment: when the door body 30 is opened from the seventh angle G7 to the eighth angle G8, the axis center point I moves away from the door front wall 31 and closer to the door side wall 32.

[0861] The axis center point I moves from the seventh center point I7 to the side away from the door front wall 31 and close to the door side wall 32 to the eighth center point I8.

[0862] Taking the box body 10 as a reference, when the door body 30 is opened from the seventh angle G7 to the eighth angle G8, the door body 30 has a translational motion while rotating. The translational motion is as follows: relative to the door body 30, the box body 10 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 33 and pointing to the door front wall 31.

[0863] When the door body 30 is opened from the seventh angle G7 to the eighth angle G8, the first direction displacement Pointing away from the door side wall 32, the second direction displacement Point to the side of the door front wall 31.

[0864] When the door body 30 is opened from the first angle G1 to the eighth angle G8, the trajectory of the axis center point I moving relative to the door body 30 is recorded as the axis center point trajectory line. Among them, the distance between the fifth midpoint I5 on the axis center point trajectory line and the door front wall 31 is the largest.

[0865] In some embodiments of the present application, G1<G3=G F3 <G4=90°<G5<G6=G F4 <G7<G8.

[0866] It should be noted that “pointing toward the door side wall 32 ” refers to the direction from the end of the door body 30 opposite to the door side wall 32 toward the door side wall 32 ;

[0867] “Directed away from the door side wall 32 ” means that it is directed from the door side wall 32 to the direction of the end of the door body 30 opposite to the door side wall 32 ;

[0868] “Towards the side of the door front wall 31” refers to the direction from the door rear wall 33 to the door front wall 31;

[0869] “Directed to the side away from the door front wall 31 ” refers to the direction from the door front wall 31 to the door rear wall 33 .

[0870] In addition, it should be noted that the first direction displacement Second direction displacement All of them are instantaneous relative translation displacements, to illustrate the instantaneous translation movement trend of the door body 30 relative to the box body 10.

[0871] See also Figure 42a-42g As shown; in the plane where the top wall of the box body 10 is located, on the side of the box body 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 port is located, and OA is parallel to the plane where the access port is located. In the displacement coordinate system AOB, the direction from the second body side wall to the first body side wall is defined as positive, and the direction from the access port to the door front wall 31 when the door body 30 is closed (from back to 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 box body 10, and it does not move with the opening of the door body 30. During the opening process of the door body 30, the relative position of the door body coordinate system XOY relative to the displacement coordinate system AOB changes continuously with the different opening angles of the door body 30; and when the opening angle of the door body 30 is determined, the instantaneous relative position of the door body coordinate system XOY relative to the displacement coordinate system AOB remains relatively stationary.

[0872] 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. The second direction displacement parallel to the door side wall 32 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

[0873] (1) Figure 42a-42c As shown, the door body 30 is at a first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to G4 = 90°, during the process of the door body 30 rotating counterclockwise relative to the box body 10 to open, the door side wall 32, the door rear wall 33 and the door front wall 31 also rotate counterclockwise during the opening process at this stage. In the plane where the top wall of the box body 10 is located, along the direction from the second side edge N to the first side edge W (the door rear wall 33 to the door front wall 31), the door side wall 32 extends outward and forward; 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 inward and forward.

[0874] In the above opening process (the first angle G1 (which can be set, G G =G1 or G G= G1 = 0°) to G4 = 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 access port is located gradually decreases, and the angle between the door side wall 32 and the reference plane M0 gradually increases; that is, when the door body 30 is at the first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to G4 = 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 to the side away from the second body side wall and the access 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 access opening is located gradually increases, and the angle between the door rear wall 33 and the reference plane M0 gradually decreases; that is, when the door body 30 is opened from the first angle G1 (which can be set, G G =G1 or G G = G1 = 0°) to G4 = 90°, 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 in a direction away from the first body side wall and the access port (close to the second body side wall and away from the access port).

[0875] (1.1) During the opening process of the door body 30, the door body 30 includes a process corresponding to opening from the first angle G1 to the fourth angle G4 = 90° in the first axis trajectory segment.

[0876] From the above description, it can be seen that when the door body 30 is opened from the first angle G1 to the fourth angle G4 = 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 The second direction displacement is parallel to the door side wall 32 and points to the side of the door front wall 31

[0877] That is, when the door body 30 is opened from the first angle G1 to the fourth angle G4 = 90°, 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 outer front side (outward and forward side) of the housing 10 .

[0878] like Figure 42a-42c As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the first angle G1 to the fourth angle G4 = 90°, the first direction displacement of the door body 30 Located in the second quadrant (A<0, B>0). Second direction displacement Located in the first quadrant (A>0, B>0).

[0879] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the B axis. Displacement in the first direction The displacement on the B axis is Second direction displacement The displacement on the B axis is

[0880] Then there is It can be seen that when the door body 30 is opened from the first angle G1 to the fourth angle G4 = 90°, in the displacement coordinate system AOB, the door body 30 has a second translation displacement It can be concluded that the door body 30 has a tendency to translate forward along the B axis while rotating relative to the box body 10. That is, when the door body 30 is opened from the first angle G1 to the fourth angle G4 = 90°, the door body 30 has a tendency to translate forward while rotating relative to the box body 10.

[0881] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis. Displacement in the first direction The displacement on the A axis is Second direction displacement The displacement on the A axis is

[0882] In some embodiments of the present application, Figure 42b As shown, the door body 30 is opened from the first angle G1 to the first turning angle G Z1 In the process, Then there is It can be seen that the door body 30 is opened from the first angle G1 to the first turning angle G Z1 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move inwardly.

[0883] Combined with the translation trend of the door body 30 along the B-axis direction, the door body 30 is opened from the first angle G1 to the first turning angle G Z1 During the opening and closing process, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of moving inwardly and forwardly.

[0884] like Fig.42c As shown, the door body 30 is turned from the first angle G Z1 During the process of opening to the fourth angle G4 = 90°, Then there is It can be seen that the door body 30 is turned from the first angle G Z1 During the process of opening to the fourth angle G4=90°, the door body 30 rotates and opens relative to the box body 10 and has a tendency to move outwardly.

[0885] Combined with the translation trend of the door body 30 along the B axis direction, the door body 30 is turned from the first turning angle G Z1 During the process of opening to the seventh angle G7=90°, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move outwardly and forwardly.

[0886] In summary, when the door body 30 is opened from the first angle G1 to the fourth angle G4 = 90°, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of first translating inwards and then translating outwards.

[0887] Combined with the translational trend of the door body 30 along the B-axis direction, when the door body 30 opens from the first angle G1 to the fourth angle G4 = 90°, the door body 30 rotates and opens relative to the box body 10 while having a movement trend of first translating inward and forward, and then translating outward and forward.

[0888] Among them, G1<G Z1 <G4.

[0889] In some embodiments of the present application, during the process of the door body 30 opening from the first angle G1 to the fourth angle G4 = 90°, Then there is It can be seen that when the door body 30 is opened from the first angle G1 to the fourth angle G4 = 90°, in the displacement coordinate system AOB, the door body 30 has a first translation displacement It can be concluded that the door body 30 has a tendency to translate inwardly while rotating relative to the box body 10. That is, when the door body 30 is opened from the first angle G1 to the fourth angle G4 = 90°, the door body 30 has a tendency to translate inwardly while rotating relative to the box body 10.

[0890] Combined with the translation tendency of the door body 30 along the A-axis direction, when the door body 30 is opened from the first angle G1 to the fourth angle G4 = 90°, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of moving inward and forward.

[0891] In some embodiments of the present application, during the process of the door body 30 opening from the first angle G1 to the fourth angle G4 = 90°, Then there is It can be seen that when the door body 30 is opened from the first angle G1 to the fourth angle G4 = 90°, in the displacement coordinate system AOB, the door body 30 has a first translation displacement It can be concluded that the door body 30 has a tendency to translate along the positive direction of the A axis while rotating relative to the box body 10. That is, when the door body 30 is opened from the first angle G1 to the fourth angle G4 = 90°, the door body 30 has a tendency to translate outward while rotating relative to the box body 10.

[0892] Combined with the translation tendency of the door body 30 along the A-axis direction, when the door body 30 is opened from the first angle G1 to the fourth angle G4 = 90°, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of translation outward and forward.

[0893] Combined with (1.1), it can be seen that the door body 30 is in the process of opening from the first angle G1 to the fourth angle G4 = 90° (G1 ~ G Z1 ), the door body 30 has a tendency to move inward in the early stage of opening, so as to compensate for the outward displacement of the first side edge caused by simple rotation in the early stage of opening of the door body 30, thereby effectively avoiding interference between the door body 30 and the storage cabinet 100.

[0894] The door body 30 is in the process of opening from the first angle G1 to the fourth angle G4 = 90° (G Z1 ~ G4 = 90°), the door body 30 has a tendency to move outwards during the process of opening to 90°, so as to reduce the obstruction of the door body 30 to the access opening.

[0895] In addition, when the door body 30 is opened from the first angle G1 to the fourth angle G4=90° (G1~G4=90°), the door body 30 moves forward so that the door body 30 is as far away from the space defined by the storage cabinet 100 as possible, thereby reducing the restriction of the storage cabinet 100 on the opening angle of the door body 30, thereby making the maximum angle that the door body 30 can open in the storage cabinet 100 larger.

[0896] (2) Fig.42d As shown, when the door body 30 is opened to 90°, the door side wall 33 is parallel to the plane where the access port is located, and is perpendicular to the reference plane M0; at this time, the door rear wall 33 is parallel to the reference plane M0, and is perpendicular to the plane where the access port is located. 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 side wall 32 extends from inside to outside; 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 from back to front.

[0897] During the opening process of the door body 30 , the door body 30 includes a process corresponding to when the door body 30 is opened to the fourth angle G4=90° in the first axis trajectory segment.

[0898] From the above description, it can be seen that when the door body 30 is opened to the fourth angle G4 = 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 The second direction displacement is parallel to the door side wall 32 and points to the side of the door front wall 31

[0899] That is, when the door body 30 is opened to the fourth angle G4 = 90°, the first direction displacement Pointing to the front side (forward side) of the box 10, the second direction displacement It points to the outside of the housing 10 (toward the outside).

[0900] like Fig.42d As shown, in the displacement coordinate system AOB, when the door body 30 is opened to the fourth angle G4 = 90°, the first direction displacement of the door body 30 Along the B axis (A=0, B>0). Second direction displacement Along the A axis (A>0, B=0).

[0901] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis. Displacement in the first direction The displacement on the A axis is Second direction displacement The displacement on the A axis is

[0902] In some embodiments of the present application, when the door body 30 is opened to the fourth angle G4 = 90°, It can be seen that when the door body 30 is opened to the fourth angle G4 = 90°, in the displacement coordinate system AOB, the door body 30 has a first translation displacement It can be concluded that the door body 30 has a tendency to translate along the positive direction of the A axis while rotating relative to the box body 10. That is, when the door body 30 is opened to the fourth angle G4=90°, the door body 30 has a tendency to translate outward while rotating relative to the box body 10.

[0903] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the B axis. Displacement in the first direction The displacement on the B axis is Second direction displacement The displacement on the B axis is

[0904] Then there is It can be seen that when the door body 30 is opened to the fourth angle G4 = 90°, in the displacement coordinate system AOB, the door body 30 has a second translation displacement It can be concluded that the door body 30 has a tendency to translate forwardly along the B axis while rotating relative to the box body 10. That is, when the door body 30 is opened to the fourth angle G4 = 90°, the door body 30 has a tendency to translate forward while rotating relative to the box body 10.

[0905] Combined with the translation tendency of the door body 30 along the A-axis direction, when the door body 30 is opened to the fourth angle G4=90°, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of translation outward and forward.

[0906] (3) Figure 42e-Figure 42g As shown, when the door body 30 rotates from G4 = 90° to G8 (G8>90°), the door body 30 rotates counterclockwise relative to the box body 10, and the door side wall 32 also rotates counterclockwise during the opening process at this stage. In the plane where the top wall of the box body 10 is located, the door side wall 32 extends outward and backward along the direction from the second side edge N to the first side edge W; along the direction from the door side wall 32 to the opposite end of the door body 30 and the door rear wall 33 extends outward and forward.

[0907] In 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 G4=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 G4=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.

[0908] (3.1) During the opening process of the door body 30, the door body 30 includes a process of opening from the fourth angle G4 = 90° to the fifth angle G5 corresponding to the first axis trajectory segment.

[0909] From the above description, it can be seen that when the door body 30 is opened from the fourth angle G4 = 90° to the fifth angle G5, 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 The second direction displacement is parallel to the door side wall 32 and points to the side of the door front wall 31

[0910] That is, when the door body 30 is opened from the fourth angle G4 = 90° to the fifth angle G5, 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 outer rear side of the housing 10 (the side facing outward and rearward).

[0911] like Figure 42eAs shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the fourth angle G4 = 90° to the fifth angle G5, the first direction displacement of the door body 30 Located in the first quadrant (A>0, B>0). Displacement in the second direction Located in the fourth quadrant (A>0, B<0).

[0912] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis. Displacement in the first direction The displacement on the A axis is Second direction displacement The displacement on the A axis is

[0913] Then there is It can be seen that when the door body 30 is opened from the fourth angle G4 = 90° to the fifth angle G5, in the displacement coordinate system AOB, the door body 30 has a first translation displacement It can be concluded from this that: relative to the box body 10, the door body 30 has a tendency to move translationally along the positive direction of the A axis while rotating; that is, in the process of the door body 30 opening from the fourth angle G4=90° to the fifth angle G5, the door body 30 rotates and opens relative to the box body 10 while having a tendency to move translationally outward.

[0914] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the B axis. Displacement in the first direction The displacement on the B axis is Second direction displacement The displacement on the B axis is

[0915] In some embodiments of the present application, during the process of the door body 30 opening from the fourth angle G4 = 90° to the fifth angle G5, Then there is It can be seen that when the door body 30 is opened from the fourth angle G4 = 90° to the fifth angle G5, in the displacement coordinate system AOB, the door body 30 has a second translation displacement It can be concluded that the door body 30 has a tendency to translate forward along the B axis while rotating relative to the box body 10. That is, when the door body 30 is opened from the fourth angle G4 = 90° to the fifth angle G5, the door body 30 has a tendency to translate forward while rotating relative to the box body 10.

[0916] Combined with the translational tendency of the door body 30 along the A-axis direction, when the door body 30 is opened from the fourth angle G4 = 90° to the fifth angle G5, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of translation outward and forward.

[0917] In some embodiments of the present application, During the process of the door body 30 opening from the fourth angle G4 = 90° to the fifth angle G5, the door body 30 mainly moves forward, and has a tendency to move slightly outward, so that the door body 30 is as far away from the space defined by the storage cabinet 100 as possible, and the restriction of the storage cabinet 100 on the opening angle of the door body 30 is reduced, so that the maximum angle that the door body 30 can open in the storage cabinet 100 is larger.

[0918] (3.2) During the opening process of the door body 30, the door body 30 includes a process of opening from the fifth angle G5 to the seventh angle G7 corresponding to the second axis trajectory segment.

[0919] From the above description, it can be seen that when the door body 30 is opened from the fifth angle G5 to the seventh angle G7, 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, with the box body 10 as a reference. The second direction parallel to the door side wall 32 and pointing away from the door front wall 31 is displaced

[0920] That is, when the door body 30 is opened from the fifth angle G5 to the seventh angle G7, 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 housing 10 (the side facing inward and forward).

[0921] like Figure 42f As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the fifth angle G5 to the seventh angle G7, the first direction displacement of the door body 30 Located in the first quadrant (A>0, B>0). Displacement in the second direction Located in the second quadrant (A<0, B>0).

[0922] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis. Displacement in the first direction The displacement on the A axis is Second direction displacement The displacement on the A axis is

[0923] In the process of the door body 30 opening from the fifth angle G5 to the seventh angle G7, Then there is It can be seen that when the door body 30 is opened from the fifth angle G5 to the seventh angle G7, the door body 30 has a first translation displacement in the displacement coordinate system AOB. It can be concluded that the door body 30 has a tendency to translate inwardly while rotating relative to the box body 10. That is, when the door body 30 is opened from the fifth angle G5 to the seventh angle G7, the door body 30 has a tendency to translate inwardly while rotating relative to the box body 10.

[0924] Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the B axis. Displacement in the first direction The displacement on the B axis is Second direction displacement The displacement on the B axis is

[0925] Then there is It can be seen that when the door body 30 is opened from the fifth angle G5 to the seventh angle G7, in the displacement coordinate system AOB, the door body 30 has a second translation displacement It can be concluded that the door body 30 has a tendency to translate forward along the B axis while rotating relative to the box body 10. That is, when the door body 30 is opened from the fifth angle G5 to the seventh angle G7, the door body 30 has a tendency to translate forward while rotating relative to the box body 10.

[0926] Combined with the translational tendency of the door body 30 along the A-axis direction, when the door body 30 is opened from the fifth angle G5 to the seventh angle G7, the door body 30 rotates and opens relative to the box body 10 while having a movement tendency of moving inward an...

Claims

1. A refrigerator, characterized in that It includes: A box body defines a storage chamber having a take-in and put-out opening; the box body comprises a first body side wall and a second body side wall arranged opposite to each other; The door body comprises a door front wall away from the box body when the door body is closed, and a door side wall close to the first body side wall and connected to the door front wall; A hinge assembly, which 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, comprising a connecting portion connected to the box body and close to the side wall of the first body, and an extending portion extending forward from the connecting portion; A first shaft and a second shaft, which are disposed on the extension portion; A guide part and a guide portion, which are arranged on the door body and close to the door side wall; the first shaft cooperates with the guide part, and the second shaft cooperates with the guide part; Wherein, the guide portion has a guide track line S, and the guide track line S extends from an end thereof away from the door side wall toward a direction close to the door front wall and the door side wall; The guide portion has a guide track line K, and the guide track line K includes a first guide section and a second guide section; the first guide section extends from an end thereof away from the door side wall to a direction close to the door side wall and away from the door front wall, and the second guide section extends from an end of the first guide section close to the door side wall to a direction close to the door side wall and the door front wall; When the door body is opened, the guide portion guides the first shaft so that the central axis of the first shaft moves along the guide trajectory line S, and the guide portion guides the second shaft so that the central axis of the second shaft moves along the guide trajectory line K; When the door body is opened, the first shaft moves relative to the guide portion, and the second shaft moves relative to the guide portion, so that the door body moves a certain distance to a side away from the side wall of the second body while rotating; Wherein, the door body is at a third direction angle G F3 Open to the fourth direction angle G F4 In the process, the first axis moves toward the side close to the door front wall and the door side wall, and the second axis moves away from the door front wall and close to the door side wall; wherein G F3 <90°<G F4 .

2. A refrigerator, characterized in that It includes: A box body defines a storage chamber having a take-in and put-out opening; the box body comprises a first body side wall and a second body side wall arranged opposite to each other; The door body comprises a door front wall away from the box body when the door body is closed, and a door side wall close to the first body side wall and connected to the door front wall; A hinge assembly, which 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, comprising a connecting portion connected to the box body and close to the side wall of the first body, and an extending portion extending forward from the connecting portion; A first shaft and a second shaft, which are arranged on the extension portion; the first shaft is located on a side of the second shaft close to the first body side wall and the access opening; A guide part and a guide portion, which are arranged on the door body and close to the door side wall; the first shaft cooperates with the guide part, and the second shaft cooperates with the guide part; Wherein, the guide portion has a guide track line S, and the guide track line S extends from an end thereof away from the door side wall toward a direction close to the door front wall and the door side wall; The guide portion has a guide track line K, and the guide track line K includes a first guide section and a second guide section; the first guide section extends from an end thereof away from the door side wall to a direction close to the door side wall and away from the door front wall, and the second guide section extends from an end of the first guide section close to the door side wall to a direction close to the door side wall and the door front wall; When the door body is opened, the guide portion guides the first shaft so that the central axis of the first shaft moves along the guide trajectory line S, and the guide portion guides the second shaft so that the central axis of the second shaft moves along the guide trajectory line K; When the door body is opened, the first shaft moves relative to the guide portion, and the second shaft moves relative to the guide portion, so that the door body moves a certain distance to a side away from the side wall of the second body while rotating; Wherein, the door body is at a third direction angle G F3 Open to the fourth direction angle G F4 In the process, the first axis moves toward the side close to the door front wall and the door side wall, and the second axis moves away from the door front wall and close to the door side wall; wherein G F3 <90°<G F4 .

3. The refrigerator according to claim 1 or 2, characterized in that: The guide track line K includes an initial guide segment; the initial guide segment extends from an end of the first guide segment away from the door side wall toward a direction close to the door side wall and the door front wall; The guide trajectory line S is a straight line; the angle between the guide trajectory line S and the front wall of the door is denoted as γ; Wherein, γ is not less than the first angle reference value; γ≥23° or γ≥26° or γ≥29°; γ is not greater than the second angle reference value; γ≤31° or γ≤34° or γ≤37°.

4. The refrigerator according to claim 3, characterized in that: The central axis of the first axis is denoted as the first central axis P, and the central axis of the second axis is denoted as the second central axis Q; In the projection of the plane where the top wall of the box body is located, the line segment where the first central axis P and the second central axis Q are located is recorded as the axis line segment PQ, and the midpoint of the axis line segment PQ is recorded as the axis midpoint I; During the process of the door body opening from the first angle G1 to the third angle G3, the center point I of the axis moves toward a side away from the door front wall and the door side wall; During the process of the door body opening from the third angle G3 to the eighth angle G8, the center point I of the axis moves away from the door front wall and closer to the door side wall; The door body is opened from the eighth angle G8 to the tenth angle G 10 During the process, the center point I of the axis moves toward the side close to the door front wall and the door side wall; Among them, G1<G3<G6=G F3 <G7=90°<G8<G9=G F4 <G 10 .

5. The refrigerator according to claim 4, characterized in that: During the process of the door body opening from the first angle G1 to the third angle G3, The door body is opened from the third angle G3 to the first turning angle G Z1 In the process, The door body is turned from the first angle G Z1 During the process of opening to the seventh angle G7 = 90°, Among them, G1<G3<G Z1 <G7=90°.

6. The refrigerator according to claim 4, characterized in that: In the projection of the top wall of the box body, 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 second central axis Q and the straight line QP where the first central axis P is located and the first body side wall is denoted as β; β is not less than the first reference value, β≥60° or β≥65° or β≥70°; β is not greater than a second reference value, β≤75° or β≤80° or β≤85°.

7. The refrigerator according to claim 1 or 2, characterized in that: The door body has a door rear wall opposite to the door front wall; the door side wall intersects with the door rear wall to form a second side edge N; The guide track line S is a curve; the guide track line S is convex toward the side close to the second side edge N; The end point of the guide trajectory line S away from the door front wall and the door side wall is recorded as the first guide point P1, and the end point close to the door side wall and the door front wall is recorded as the seventh guide point P7; The straight line where the first guide point P1 and the seventh guide point P7 are located is recorded as straight line P1P7; the angle between the straight line P1P7 and the front wall of the door is recorded as λ; Wherein, λ is not less than the first angle reference value; λ≥32° or λ≥35° or λ≥38°; λ is not greater than the second angle reference value; λ≤40° or λ≤43° or λ≤46°.

8. The refrigerator according to claim 7, characterized in that: The central axis of the first axis is denoted as the first central axis P, and the central axis of the second axis is denoted as the second central axis Q; In the projection of the top wall of the box body, 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 second central axis Q and the straight line QP where the first central axis P is located and the first body side wall is denoted as β; β is not less than the first reference value, β≥65° or β≥70° or β≥74°; β is not greater than a second reference value, β≤77° or β≤81° or β≤86°.

9. The refrigerator according to claim 8, characterized in that: In the projection of the plane where the top wall of the box body is located, the line segment where the first central axis P and the second central axis Q are located is recorded as the axis line segment PQ, and the midpoint of the axis line segment PQ is recorded as the axis midpoint I; When the door body is opened from the first angle G1 to the fifth angle G5, the center point I of the axis moves away from the front wall of the door and closer to the side wall of the door; When the door body is opened from the fifth angle G5 to the seventh angle G7, the center point I of the axis moves toward the side close to the door front wall and the door side wall; In the process of the door body opening from the seventh angle G7 to the eighth angle G8, the center point I of the axis moves away from the front wall of the door and closer to the side wall of the door; Among them, G1<G3=G F3 <G4=90°<G5<G6=G F4 <G7<G8.

10. The refrigerator according to claim 9, characterized in that: A displacement coordinate system AOB is established in the projection of the plane where the top wall of the box is located; wherein, in the displacement coordinate system AOB, OB is perpendicular to the plane where the access port is located, and the direction from the access port to the front wall of the door when the door is closed is taken as positive; OA is parallel to the plane where the access port is located, and the direction from the second body side wall to the first body side wall is taken as positive; the displacement coordinate system AOB is a coordinate system that is stationary relative to the box; During the whole process of the door body opening from the first angle G1 to the eighth angle G8, the door body has a first direction displacement parallel to the front wall of the door while rotating. A second direction displacement parallel to the door side wall The first direction displacement 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 The door body is opened from the first angle G1 to the first turning angle G Z1 In the process, The door body is turned from the first angle G Z1 During the process of opening to the fourth angle G4 = 90°, Among them, G1<G Z1 <G4=90°.

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