Refrigerator

Abstract

The present invention provides a refrigerator, which comprises a box body, a hinge assembly and a door body; the hinge assembly includes a guiding part and a guiding portion located at the end of the door body, a first hinge shaft, a second hinge shaft and a third hinge shaft fixed to the box body; the guiding part defines a linear guiding track line, which extends from one end close to the door side wall towards the direction away from the door side wall and the front wall of the door; the guiding portion defines a closed ring-shaped guiding track line surrounding the guiding track line; the second hinge shaft, the first hinge shaft and the third hinge shaft are successively away from the first body side wall; during the process of the door body being opened from the second angle to the fifth angle, the first hinge shaft moves linearly along the guiding track line towards the direction close to the door side wall and the front wall of the door relative to the guiding part; the second hinge shaft and the third hinge shaft move relative to the guiding portion; the door body opens a taking and placing opening and moves inward by a certain distance; the refrigerator of the present invention enables the door body to generate a certain displacement inward when opened, so that the door body does not extend beyond the side wall of the box body too much.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly to a refrigerator. Background Art

[0002] Currently, refrigerators are often placed inside cabinets to achieve built-in installation. Generally, a built-in refrigerator is integrally embedded in a customized cabinet. For the concealment of the refrigerator when embedded in an external cabinet, the distance between the front end face of the refrigerator door when it is closed and the plane where the cabinet opening is located is very small. When the front end face of the refrigerator door is flush with the plane where the cabinet opening is located when the refrigerator door is closed, when the refrigerator door is opened, the rotating refrigerator door is likely to collide with the side wall of the cabinet surrounding its opening, resulting in the door body being unable to continue opening. Therefore, for built-in refrigerators, due to the limitation of the space structure of the cabinet, it increases the inconvenience for users to take items. Summary of the Invention

[0003] The present invention solves at least one of the technical problems in the related art to a certain extent.

[0004] For this reason, the present application aims to provide a refrigerator, and the hinge structure of the refrigerator enables the door body to generate a certain displacement inward when it is opened.

[0005] The refrigerator according to the present application includes:

[0006] A box body that defines a storage compartment with an access opening and has a first body side wall and a second body side wall arranged oppositely;

[0007] A door body that is connected to the box body through a hinge assembly to open or close the access opening; the door body has a front door wall that is far from the box body when the door body is closed, and a door side wall that is connected to the front door wall and is close to the hinge assembly;

[0008] The hinge assembly includes:

[0009] A first hinge shaft, a second hinge shaft, and a third hinge shaft that are fixed on the box body and close to the first body side wall; the second hinge shaft, the first hinge shaft, and the third hinge shaft are sequentially far from the first body side wall;

[0010] A guiding portion and a guiding part that are located at the end of the door body and close to the door side wall; the guiding portion defines a linear guiding track line that extends from one end close to the door side wall and the front door wall to a direction away from the door side wall and the front door wall; the guiding part defines a closed circular guiding track line that surrounds the guiding track line;

[0011] During the process of the door body being opened from the second angle G2 to the fifth angle G5, the first hinge axis moves linearly along the guiding trajectory line relative to the guiding portion in a direction approaching the door side wall and the front wall of the door; the second hinge axis and the third hinge axis move relative to the guiding portion; the door body opens the access opening and moves inward a certain distance; where G2 < G5 < 90°.

[0012] In some embodiments of the refrigerator of the present application, within the projection on the plane of the top wall of the cabinet, on the side of the cabinet close to the door body, a displacement coordinate system AOB is established; where, in the displacement coordinate system AOB, OB is perpendicular to the plane where the access opening is located, and the direction from the access opening 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 opening is located, and the direction from the second side wall of the body to the first side wall of the body is taken as positive; the displacement coordinate system AOB is stationary relative to the coordinate system of the cabinet;

[0013] The door body has a door rear wall oppositely arranged to the front wall of the door;

[0014] When the door body is opened, the door body has a first-direction displacement parallel to the door rear wall and a second-direction displacement parallel to the door side wall

[0015] where, the first-direction displacement has a component displacement on the A axis of and a component displacement on the B axis of The second-direction displacement has a component displacement on the A axis of and a component displacement on the B axis of

[0016] During the process of the door body being opened from the second angle G2 to the fifth angle G5, the first-direction displacement is parallel to the door rear wall and points to the side away from the door side wall, and the second-direction displacement is parallel to the door side wall and points to the side away from the front wall of the door;

[0017] where,

[0018] In some embodiments of the refrigerator of the present application, during the process of the door body being opened from the fifth angle G5 to 90°, the first-direction displacement is parallel to the door rear wall and points to the door side wall, and the second-direction displacement is parallel to the door side wall and points to the front wall of the door; where, where G5 < 90°.

[0019] In some embodiments of the refrigerator of the present application, the door body is opened from 90° to the maximum angle G that the door body can open max During this process, the displacement in the first direction is parallel to the rear wall of the door and points to the side wall of the door, and the displacement in the second direction is parallel to the side wall of the door and points to the front wall of the door;

[0020] Wherein, G5 < 90° < G max .

[0021] In some embodiments of the refrigerator of the present application, the central axis of the first hinge shaft is denoted as the first central axis I, the central axis of the second hinge shaft is denoted as the second central axis E, and the central axis of the third hinge shaft is denoted as the third central axis F;

[0022] In the projection on the plane of the top wall of the box body, the first central axis I, the second central axis E and the third central axis F form an axis triangle IEF; wherein, the axis triangle IEF is an obtuse triangle, and ∠FIE is an obtuse angle.

[0023] In some embodiments of the refrigerator of the present application, in the projection on the plane of the top wall of the box body, the longest side EF of the axis triangle IEF is located on the side of the vertex I of the axis triangle IEF away from the access opening.

[0024] In some embodiments of the refrigerator of the present application, the guiding track line includes a first guiding section K1, a second guiding section K2, a third guiding section K3, a fourth guiding section K4, a fifth guiding section K5, a sixth guiding section K6 and a seventh guiding section K7 that are connected end to end in sequence;

[0025] Wherein, the connection point of the seventh guiding section K7 and the first guiding section K1 is denoted as the first connection position a; the connection points of the first guiding section K1, the second guiding section K2, the third guiding section K3, the fourth guiding section K4, the fifth guiding section K5, the sixth guiding section K6, and the seventh guiding section K7 connected in sequence are denoted as the second connection position b, the third connection position c, the fourth connection position d, the fifth connection position e, the sixth connection position f, and the seventh connection position g in sequence;

[0026] In the projection on the plane of the front wall of the door, the seventh connection position g, the first connection position a, the second connection position b, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are sequentially away from the side wall of the door;

[0027] In the projection on the plane of the side wall of the door, the second connection position b, the third connection position c, the fourth connection position d, the first connection position a, the fifth connection position e, the seventh connection position g, and the sixth connection position f are sequentially away from the front wall of the door.

[0028] In some embodiments of the refrigerator of the present application, the wall surface of the door body opposite to the front wall of the door intersects with the door side wall to form a second side edge N;

[0029] The plane where the access opening is located is denoted as the second reference plane M2; the plane where the second body side wall is located is denoted as the first reference plane M1, and the first reference plane M1 is perpendicular to the second reference plane M2; the first reference plane M1 and the second reference plane M2 remain stationary relative to the box body during the opening process of the door body relative to the box body;

[0030] In the projection on the plane of the top wall of the box body, during the process of the door body opening from the closed state, the second side edge N first moves in a direction close to the first reference plane M1 and the second reference plane M2, and then moves in a direction close to the first reference plane M1 and away from the second reference plane M2;

[0031] When the door body is opened to the maximum angle G max During the process, the movement trajectory of the second side edge is an arc.

[0032] In some embodiments of the refrigerator of the present application, a door seal is provided on the wall surface of the door body opposite to the front wall of the door; when the door body is closed, the door seal is in contact with the front end surface of the box body surrounding the access opening; the door seal includes a side seal edge H close to the door side wall and away from the front wall of the door;

[0033] In the projection on the plane of the top wall of the box body, during the process of the door body opening from the closed state, the side seal edge H first moves in a direction close to the first reference plane M1 and the second reference plane M2, and then moves in a direction close to the first reference plane M1 and away from the second reference plane M2;

[0034] When the door body is opened to the maximum angle G max During the process, the movement trajectory of the side seal edge H is an arc.

[0035] In some embodiments of the refrigerator of the present application, in the plane of the top wall of the box body, the center of the circle where the movement trajectory of the arc-shaped second side edge is located is denoted as the second side edge center O N The center of the circle where the movement trajectory of the arc-shaped side seal edge is located is denoted as the side seal edge center O H ;

[0036] Among them, the radius of the circle where the movement trajectory of the second side edge is located is smaller than the radius of the circle where the movement trajectory of the side seal edge is located;

[0037] The central axis of the first hinge axis, the second side edge center O N The side seal edge center O H Are successively away from the first body side wall; and the side seal edge center OH 、The central axis of the first hinge shaft and the center O of the second side edge circle N Are successively away from the plane where the pick-and-place opening is located.

[0038] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0039] The present invention provides a refrigerator, which includes a box body, a hinge assembly, and a door body; the hinge assembly includes a guiding part and a guiding part located at the end of the door body, a first hinge shaft, a second hinge shaft, and a third hinge shaft fixed to the box body; the guiding part defines a linear guiding track line, which extends from one end close to the door side wall to a direction away from the door side wall and the front wall of the door; the guiding part defines a closed ring-shaped guiding track line surrounding the guiding track line; the second hinge shaft, the first hinge shaft, and the third hinge shaft are successively away from the first body side wall; during the process of the door body being opened from the second angle to the fifth angle, the first hinge shaft moves linearly along the guiding track line towards the direction close to the door side wall and the front wall of the door relative to the guiding part; the second hinge shaft and the third hinge shaft move relative to the guiding part; the door body opens the pick-and-place opening and moves inward by a certain distance; the refrigerator of the present invention enables the door body to generate a certain displacement inward when opened, so that the door body does not extend beyond the side wall of the box body too much. Description of the Drawings

[0040] Figure 1 Is a perspective view of the refrigerator in the first embodiment of the present invention;

[0041] Figure 2 Is Figure 1 A partial structural schematic diagram of the cooperation between the first hinge member and the second hinge member when the door body is closed;

[0042] Figure 3 Is a structural schematic diagram of the first hinge member in the first embodiment of the refrigerator of the present invention;

[0043] Figure 4 Is another perspective structural schematic diagram of the first hinge member in the first embodiment of the refrigerator of the present invention;

[0044] Figure 5 Is a schematic diagram of the relative positions of the door corners when the door body is closed in the first embodiment of the refrigerator of the present invention;

[0045] Figure 6 Is a schematic diagram of the relative positions of the door corners when the door body is opened to the maximum angle in the first embodiment of the refrigerator of the present invention;

[0046] Figure 7 Is when the door body of the refrigerator in the first embodiment of the present invention is opened to A view at the hinge assembly;

[0047] Figure 8 Is when the door body of the refrigerator in the first embodiment of the present invention is opened to View at the hinge assembly when...;

[0048] Figure 9 is a view at the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to View at the hinge assembly when...;

[0049] Figure 10 is a view at the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to View at the hinge assembly when...;

[0050] Figure 11 is a view at the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to View at the hinge assembly when...;

[0051] Figure 12 is a view at the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to View at the hinge assembly when...;

[0052] Figure 13 is a view at the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to View at the hinge assembly when...;

[0053] Figure 14 is a view at the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to View at the hinge assembly when...;

[0054] Figure 15 is a view at the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to View at the hinge assembly when...;

[0055] Figure 16 is a view at the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to View at the hinge assembly when...;

[0056] Figure 17 is a view at the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to View at the hinge assembly when...;

[0057] Figure 18 is a schematic diagram of the movement of the first side edge, the second side edge and the side sealing edge during the opening process of the door body of the refrigerator in the first embodiment of the present invention;

[0058] Figure 19 is a schematic diagram of the positions of the first hinge axis relative to the guiding portion, the second hinge axis and the second hinge axis and the third hinge axis relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened from the closed state to different angles during the opening process; 10

[0059] Figure 20 ​In the first embodiment of the refrigerator of the present invention, when the door body is opened from the closed state to G2, it is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion at different opening angles;

[0060] Figure 21 In the first embodiment of the refrigerator of the present invention, when the door body is opened from G2 to G5, it is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion at different opening angles;

[0061] Figure 22 In the first embodiment of the refrigerator of the present invention, when the door body is opened from G5 to G7, it is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion at different opening angles;

[0062] Figure 23 In the first embodiment of the refrigerator of the present invention, when the door body is opened from G7 to G 10 During the opening process, it is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion at different opening angles;

[0063] Figure 24 In the first embodiment of the refrigerator of the present invention, when the door body is opened to It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion;

[0064] Figure 25 In the first embodiment of the refrigerator of the present invention, when the door body is opened to It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion;

[0065] Figure 26 In the first embodiment of the refrigerator of the present invention, when the door body is opened to It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion;

[0066] Figure 27 In the first embodiment of the refrigerator of the present invention, when the door body is opened to It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion;

[0067] Figure 28 In the first embodiment of the refrigerator of the present invention, when the door body is opened to It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion;

[0068] Figure 29 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to ;

[0069] Figure 30 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to ;

[0070] Figure 31 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to ;

[0071] Figure 32 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to ;

[0072] Figure 33 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to ;

[0073] Figure 34 is a schematic diagram of the relative positions of the door body and the cabinet when the door body of the refrigerator in the first embodiment of the present invention is closed;

[0074] Figure 35 is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in the first embodiment of the present invention is less than G2;

[0075] Figure 36 is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in the first embodiment of the present invention is greater than G2 and less than G5;

[0076] Figure 37 is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in the first embodiment of the present invention is greater than G5 and less than G 90 ;

[0077] Figure 38 is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in the first embodiment of the present invention is 90°;

[0078] Figure 39 is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in the first embodiment of the present invention is greater than 90° and less than G 10Schematic diagram of the relative position between the door body and the box body at a certain time;

[0079] Figure 40 It is a comparison diagram of the position of the door body when it is opened to G1 in the first embodiment of the refrigerator of the present invention and the position of the door body when it rotates from the closed state to G1 with its first central axis I at the closing time as the rotation axis;

[0080] Figure 41 It is a comparison diagram of the position of the door body when it is opened to G2 in the first embodiment of the refrigerator of the present invention and the position of the door body when it rotates from the state of being opened to G1 to G2 with its first central axis I at the opening time to G1 as the rotation axis;

[0081] Figure 42 It is a comparison diagram of the position of the door body when it is opened to G3 in the first embodiment of the refrigerator of the present invention and the position of the door body when it rotates from the state of being opened to G2 to G3 with its first central axis I at the opening time to G2 as the rotation axis;

[0082] Figure 43 It is a comparison diagram of the position of the door body when it is opened to G4 in the first embodiment of the refrigerator of the present invention and the position of the door body when it rotates from the state of being opened to G3 to G4 with its first central axis I at the opening time to G3 as the rotation axis;

[0083] Figure 44 It is a comparison diagram of the position of the door body when it is opened to G5 in the first embodiment of the refrigerator of the present invention and the position of the door body when it rotates from the state of being opened to G4 to G5 with its first central axis I at the opening time to G4 as the rotation axis;

[0084] Figure 45 It is a comparison diagram of the position of the door body when it is opened to G6 in the first embodiment of the refrigerator of the present invention and the position of the door body when it rotates from the state of being opened to G5 to G2 with its first central axis I at the opening time to G5 as the rotation axis;

[0085] Figure 46 It is a comparison diagram of the position of the door body when it is opened to G7 in the first embodiment of the refrigerator of the present invention and the position of the door body when it rotates from the state of being opened to G6 to G2 with its first central axis I at the opening time to G6 as the rotation axis;

[0086] Figure 47 It is a comparison diagram of the position of the door body when it is opened to G8 in the first embodiment of the refrigerator of the present invention and the position of the door body when it rotates from the state of being opened to G7 to G3 with its first central axis I at the opening time to G7 as the rotation axis;

[0087] Figure 48 It is a comparison diagram of the position of the door body when it is opened to G9 in the first embodiment of the refrigerator of the present invention and the position of the door body when it rotates from the state of being opened to G8 to G4 with its first central axis I at the opening time to G8 as the rotation axis;

[0088] Figure 49 It is the position of the door body when it is opened to G in the first embodiment of the refrigerator of the present invention 10Diagram showing the comparison of the position when [condition] with the position when the door body is opened to the G9 state and rotated to the G5 state with the first central axis I when it is opened to G9;

[0089] Figure 50 It is a top view of the refrigerator in the second embodiment of the refrigerator of the present invention;

[0090] Figure 51 Is Figure 50 Partial structural schematic diagram of the door body when closed relative to the mating part of the two door bodies;

[0091] Figure 52 It is a schematic diagram of the cooperation of the two side sealing strips when the door body of the second embodiment of the refrigerator of the present invention is in the closed state;

[0092] Figure 53 It is a schematic diagram of the relative positions of the two side sealing strips when the door body of the second embodiment of the refrigerator of the present invention starts to open;

[0093] Figure 54 It is a top view of the refrigerator of the third embodiment of the refrigerator of the present invention relative to the cabinet;

[0094] Figure 55 It is a three-dimensional view of the refrigerator in the fourth embodiment of the refrigerator of the present invention;

[0095] Figure 56 It is a schematic diagram of the relative positions of the turning beam and the box body from another perspective when the door body is opened in the fourth embodiment of the refrigerator of the present invention;

[0096] Figure 57 It is a top view of the refrigerator in the fourth embodiment of the refrigerator of the present invention;

[0097] Figure 58 It is when the door body of the refrigerator in the fourth embodiment of the present invention is closed to G S Schematic diagram of the relative positions of the door body, the guide block and the guide groove;

[0098] Figure 59 It is when the door body of the refrigerator in the fourth embodiment of the present invention is closed to G F Schematic diagram of the relative positions of the door body, the guide block and the guide groove;

[0099] Figure 60 It is an exploded structural schematic diagram of the mounting block and the end of the door body in the fourth embodiment of the refrigerator of the present invention;

[0100] Figure 61 It is a structural schematic diagram of the first mating part and the second mating part when the door body of the refrigerator in the fourth embodiment of the present invention is in the closed state;

[0101] Figure 62 It is a structural schematic diagram of the door body of the refrigerator in the fourth embodiment of the present invention when it is closed from the open state until the first mating part and the second mating part come into contact;

[0102] Figure 63 It is a schematic structural view of the door body of the refrigerator in the fourth embodiment of the present invention when it is closed from the open state to the maximum elastic deformation of the second engaging portion caused by the interaction between the first engaging portion and the second engaging portion;

[0103] Figure 64 It is a top view of the refrigerator in the fifth embodiment of the present invention relative to the cabinet.

[0104] Figure 65 It is a perspective view of the refrigerator in the sixth embodiment of the present invention;

[0105] Figure 66 It is a top view of the refrigerator in the sixth embodiment of the present invention;

[0106] Figure 67 It is when the door body of the refrigerator in the second embodiment of the present invention is opened to a schematic view of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion;

[0107] Figure 68 It is when the door body of the refrigerator in the second embodiment of the present invention is opened to a schematic view of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion;

[0108] Figure 69 It is when the door body of the refrigerator in the second embodiment of the present invention is opened to a schematic view of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion;

[0109] Figure 70 It is when the door body of the refrigerator in the second embodiment of the present invention is opened to a schematic view of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion;

[0110] Figure 71 It is when the door body of the refrigerator in the second embodiment of the present invention is opened to a schematic view of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion;

[0111] Figure 72 It is when the door body of the refrigerator in the second embodiment of the present invention is opened to a schematic view of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion;

[0112] Figure 73 It is when the door body of the refrigerator in the second embodiment of the present invention is opened to a schematic view of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion;

[0113] Figure 74 In the second embodiment of the refrigerator of the present invention, when the door body is opened to The schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding part;

[0114] Figure 75 In the second embodiment of the refrigerator of the present invention, when the door body is opened to The schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding part;

[0115] Figure 76 In the second embodiment of the refrigerator of the present invention, when the door body is opened to The schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding part;

[0116] Figure 77 In the second embodiment of the refrigerator of the present invention, during the process of the door body being opened from the closed state to Q8, the schematic diagrams of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding part at different opening angles;

[0117] Figure 78 The comparison diagram of the position of the door body of the refrigerator in the first embodiment of the present invention when it is opened to Q1 and the position of the door body when it rotates from the closed state around its first central axis I at the time of closing to Q1;

[0118] Figure 79 The comparison diagram of the position of the door body of the refrigerator in the first embodiment of the present invention when it is opened to Q2 and the position of the door body when it rotates from the state of being opened to Q1 around its first central axis I at the time of being opened to Q1 to Q2;

[0119] Figure 80 The comparison diagram of the position of the door body of the refrigerator in the first embodiment of the present invention when it is opened to Q3 and the position of the door body when it rotates from the state of being opened to Q2 around its first central axis I at the time of being opened to Q2 to Q3;

[0120] Figure 81 The comparison diagram of the position of the door body of the refrigerator in the first embodiment of the present invention when it is opened to Q4 and the position of the door body when it rotates from the state of being opened to Q3 around its first central axis I at the time of being opened to Q3 to Q4;

[0121] Figure 82 The comparison diagram of the position of the door body of the refrigerator in the first embodiment of the present invention when it is opened to Q5 and the position of the door body when it rotates from the state of being opened to Q4 around its first central axis I at the time of being opened to Q4 to Q5;

[0122] Figure 83It is a comparison diagram of the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q6 and the position when the door body is opened to the Q5 state and rotated to the Q2 position with the first central axis I when it is opened to Q5 as the rotation axis;

[0123] Figure 84 It is the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q 8` and the comparison diagram of the position when the door body is opened to the Q6 state and rotated to the Q2 position with the first central axis I when it is opened to Q6 as the rotation axis;

[0124] Figure 85 It is the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q7 and the door body is opened to Q 8` state with the first central axis I when it is opened to Q 8` as the rotation axis and rotated to the comparison diagram of the position at Q2;

[0125] Figure 86 It is the comparison diagram of the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q8 and the position when the door body is opened to the Q7 state and rotated to the Q2 position with the first central axis I when it is opened to Q7 as the rotation axis;

[0126] In each of the above figures: In each of the above figures: the box body 10; the cabinet 100; the door body 30; the front wall 31 of the door; the side wall 32 of the door; the rear wall 33 of the door; the first side edge W; the second side edge N; the receiving groove 37; the door end cover 38; the centroid plane P; the door seal 5; the side seal edge H; the hinge plate 40; the connecting portion 401; the extending portion 402; the stopping portion 403; the hooking gap 404; the first extension plate 4021; the second extension plate 4022; the first hinge shaft 41; the second hinge shaft 42; the third hinge shaft 43; the first central axis I; the second central axis E; the third central axis F; the guiding portion 50; the guiding track line S; the first guiding position I1; the second guiding position I2; the third guiding position I3; the fourth guiding position I4; the fifth guiding position I5; the sixth guiding position I6; the guiding portion 60; the guiding track line K; the first guiding segment K1; the second guiding segment K2; the third guiding segment K3; the fourth guiding segment K4; the fifth guiding segment K5; the sixth guiding segment K6; the seventh guiding segment K7; the first connecting position a; the second connecting position b; the third connecting position c; the fourth connecting position d; the fifth connecting position e; the sixth connecting position f; the seventh connecting position g; the side seal strip 3; the plate body 81; the locking hook 82; the root connecting portion 83; the hooking portion 84; the door corner portion 7; the top plate 71; the side plate 72; the receiving space 70; the flipping beam 9; the guiding block 90; the guiding rail 91. Detailed implementation manners

[0127] Next, the present invention will be specifically described through exemplary implementation manners. However, it should be understood that, without further narration, the elements, structures, and features in one implementation manner can also be beneficially combined into other implementation manners.

[0128] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0129] The terms "first", "second", "third", "fourth", "fifth" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth", "fifth" may explicitly or implicitly include one or more of such features.

[0130] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0131] Hereinafter, the embodiments of the present application will be described in detail with reference to the drawings. In the drawings, the side facing the user when the refrigerator is in use is defined as the front side, and the opposite side is defined as the rear side.

[0132] Embodiment 1

[0133] Referring to Figure 1 , the refrigerator includes a cabinet 10 having a storage compartment, a door 30 connected to the cabinet 10 to open and close the storage compartment, and a refrigeration device for supplying cold air to the storage compartment. The cabinet 10 includes an inner liner defining the storage compartment, an outer shell connected to the outside of the inner liner to form the appearance of the refrigerator, and a heat insulation layer provided between the inner liner and the outer shell to insulate the storage compartment.

[0134] The cabinet 10 defines a plurality of storage compartments. In this embodiment, the plurality of storage compartments include a refrigerating compartment and a freezing compartment located below the refrigerating compartment; it should be noted that the arrangement of the plurality of storage compartments of the refrigerator is not limited to the above examples.

[0135] A pick-and-place opening is formed at the front end of the storage compartment for placing food into or taking food out of the storage compartment; a rotatable door body 30 is provided on the box body 10 to open or close the pick-and-place opening of the storage compartment. Specifically, the door body 30 is rotatably connected to the box body 10 through a hinge assembly located at the upper part and a hinge assembly located at the lower part to open or close the pick-and-place opening.

[0136] Specifically, in this embodiment, the box body 10 includes a first body side wall and a second body side wall which are oppositely arranged (i.e., the left side wall and the right side wall of the box body 10); wherein, the door body 30 has a front door wall 31 which is far away from the box body 10 when the door body 30 is closed, a door rear wall 33 which is oppositely arranged to the front door wall 31, and a door side wall 32 which is close to the hinge assembly and connected to the front door wall 31. Among them, the arrangement direction of the first body side wall and the second body side wall is defined as the transverse direction; that is, the direction from the first body side wall to the second body side wall or from the second body side wall to the first body side wall is the transverse direction; it is also equivalent to the normal direction of the first body side wall being the transverse direction.

[0137] Among them, the front door wall 31 and the door side wall 32 of the door body 30 intersect to form a first side edge W, and the door side wall 32 and the door rear wall 33 intersect to form a second side wall N. When the door body 30 is closed, the first side edge W is located on the side away from the box body 10 of the second side edge N. It should be noted that the intersection line of the front door wall 31 and the door side wall 32 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); in actual production and processing settings, the intersection of the front door wall 31 and the door side wall 32 is provided with a rounded corner transition, so a curved surface is formed at the intersection of the front door wall 31 and the door side wall 32; on the curved surface at the intersection of the front door wall 31 and the door side wall 32, any straight line extending along the height direction of the door body 30 can represent the first side edge W (the same applies to the second side edge N). In this application, for the convenience of description, the theoretical first side edge W and the theoretical second side edge N are used for description to illustrate the movement trend of the first side edge W or the second side edge N during the opening process of the door body 30. In addition, a plane passing through the centroid of the door body 30 and parallel to the front door wall 31 is denoted as the centroid plane P; during the opening process of the door body 30, the centroid plane P moves with the door body 30, and the centroid plane P remains stationary relative to the door body. In this embodiment, the centroid plane P determined with the geometric center of the door body 30 as the centroid is used for description.

[0138] A door seal 5 is provided on the rear wall of the door body 30; when the door body 30 is closed, the door seal 5 is attached to the front end surface of the box body 10 surrounding the pick-and-place opening to effectively seal the connection between the door body 30 and the box body 10, so as to ensure that the door body 30 seals the pick-and-place opening and prevent cold air from leaking out. Optionally, the door seal 5 is annular; the door seal 5 includes a side seal close to the door side wall 32, and the edge of the door seal 5 (side seal) close to the door side wall 32 and away from the front door wall 31 is denoted as the side seal edge H.

[0139] The hinge assembly includes a first hinge member and a second hinge member. The first hinge member cooperates with the second hinge member and is capable of relative rotation. The first hinge member is disposed on the cabinet 10 and near the first body side wall, and the second hinge member is disposed at the end of the door body 30 near the first hinge member. The first hinge member cooperates with the second hinge member to allow relative rotation between the cabinet 10 and the door body 30. Among them, the second hinge member is close to the door side wall 32 of the door body 30. For example, when the first hinge member is located on the right side of the cabinet 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 member is located on the left side of the cabinet 10, the left side wall of the door body 30 is the door side wall 32 when the door body 30 is closed.

[0140] Referring to Figures 2 to 4 , the first hinge member includes: a hinge plate 40 and a plurality of hinge shafts formed on the hinge plate 40. Specifically, the hinge plate 40 includes a connecting portion 401 connected to the cabinet 10 and an extending portion 402 extending forward from the connecting portion 401 and in the shape of a horizontal plate. The connecting portion 401 can be fastened to the top wall of the cabinet 10 by fasteners such as screws, pins, and bolts. 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 cabinet 10. For the hinge at the lower end of the door body 30, the connecting portion 401 is connected to the front end face of the cabinet 10. Among them, a first hinge shaft 41, a second hinge shaft 42, and a third hinge shaft 43 are formed on the extending portion 402 of the first hinge member; among them, the second hinge shaft 42 is located on the side of the first hinge shaft 41 close to the first body side wall, and the third hinge shaft 43 is located on the side of the first hinge shaft 41 away from the first body side wall.

[0141] The second hinge member includes: a guiding portion 50 and a guiding part 60 located at the end of the door body 30 near the first hinge member; among them, the first hinge shaft 41 is adapted to the guiding portion 50, and both the second hinge shaft 42 and the third hinge shaft 43 are adapted to the guiding part 60; during the process of the door body 30 rotating open or closed, the first hinge shaft 41 moves relative to the guiding portion 50, and both the second hinge shaft 42 and the third hinge shaft 43 move relative to the guiding part 60.

[0142] In this embodiment, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are formed on the extending portion 401 connected to the cabinet 10 through the connecting portion 401 to form a defining shaft for guiding the movement of the door body 30. Specifically, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 extend in the vertical direction (the height direction of the cabinet 10) to be adapted to the guiding portion 50 or the guiding part 60 provided on the door body 30.

[0143] In this embodiment, taking the example that the extension parts 402 at the upper and lower ends of the door body 30 are both provided with a first hinge shaft 41, a second hinge shaft 42 and a third hinge shaft 43, and guide parts 50 and guiding parts 60 are provided at the upper and lower ends of the door body 30 respectively for description. 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 at the same time, and it is set as required to connect the door body 30 with the box body 10.

[0144] In this embodiment, as Figures 2 - 6 shown, the plane where the side surface (the first body side wall) of the box body 10 close to the hinge plate 40 is located is defined as the reference plane M0, and the side of the reference plane M0 far from the storage chamber cavity is denoted as the outer side; correspondingly, the side of the reference plane M0 close to the storage chamber cavity is denoted as the inner side. As Figure 2 shown, 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 straight line where the central axes of the first hinge shaft 41 and the second hinge shaft 42 are located is perpendicular to the first body side wall; that is, in the projection of the plane where the top wall of the box body 10 is located, the straight line where the central axes of the first hinge shaft 41 and the second hinge shaft 42 are located is parallel to the plane where the access opening is located; so that the positioning of the hinge shaft can be detected, ensuring the processing accuracy, thereby ensuring the assembly accuracy and increasing the smoothness of the rotation and opening of the door body 30.

[0145] In this embodiment, the trajectory line of the relative movement of the guiding part 50 guiding the central axis of the first hinge shaft 41 is denoted as the guiding trajectory line S, and the trajectory line of the relative movement of the guiding part 60 guiding the second hinge shaft 42 is denoted as the guiding trajectory line K; the centroid of the guiding trajectory line K is denoted as the guiding centroid O. In this embodiment, the guiding trajectory line K surrounds its guiding centroid O. In this embodiment, the guiding trajectory line S is a straight line and the guiding trajectory line K is a ring shape; that is, during the opening process of the door body 30, the guiding part 50 guides the movement of the first hinge shaft 41, so that the central axis of the first hinge shaft 41 moves along the guiding trajectory line S in a straight line, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guiding part 60 and move relative to the guiding trajectory line K.

[0146] In some embodiments of the present application, the guiding trajectory line S extends linearly from its end close to the door side wall 32 and the door front wall 31 in a direction away from the door side wall 32 and the door front wall. Among them, the included angle between the guiding trajectory line S and the door front wall 31 is denoted as θ; θ belongs to any value in the range of 20° to 45°. Optionally, θ = 30°. The above setting of the angle θ can control the instantaneous displacement direction of the door body 30 during the opening process through the cooperation between the guiding part 50 and the first hinge shaft 41, so as to control the lateral displacement of the door body 30 relative to the box body 10. During the opening process of the door body 30, the first hinge shaft 41 moves relative to the door body 30 along a straight line at an angle θ with the door front wall 31, effectively controlling the displacement of the door body 30 in the direction perpendicular to the door side wall 32 and the direction perpendicular to the door front wall 31.

[0147] In some embodiments of the present application, the guiding track line K surrounds the guiding track line S. In the projection on the plane where the top wall of the box body 10 is located, the guiding track line K surrounds the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43.

[0148] As a settable manner, the guiding portion 50 is set as a guiding groove, the guiding portion 60 is set as a guiding groove, and the central track line of the guiding groove is the guiding track line S. The groove wall of the guiding groove is annular to define an annular guiding track line K. In the projection on the plane where the top wall of the box body 10 is located, the groove wall of the guiding groove surrounds the guiding groove, the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43. During the opening process of the door body 30, the first hinge axis 41 moves linearly relative to the guiding groove, and the second hinge axis 42 and the third hinge axis 43 both move relative to the guiding groove, so that during the opening process of the door body 30, there is a certain displacement amount in the transverse direction.

[0149] In the present invention, the guiding portion 60 defines a closed annular guiding track line. Optionally, the guiding groove is an annular closed groove. The above annular guiding portion 60 has high strength, good machinability, and good machining precision; in addition, the annular setting form makes the guiding portion 60 have excellent detectability to ensure precision; furthermore, the annular guiding portion 60 has good resistance to deformation and effectively ensures its precision. Combined with the linear guiding portion 50, the first hinge axis 41 fixed to the box body 10 cooperates with the linear guiding portion 50, and the second hinge axis 42 and the third hinge axis 43 cooperate with the guiding portion 60, which can accurately control the movement of the door body 30, so that the door body 33 has a certain displacement distance in the transverse direction to meet the requirements of various applications; and the stability of the movement of the door body 30 is increased, improving the user experience.

[0150] In some embodiments of the present application, corresponding to the guiding track line S being a straight line inclined relative to the front wall 31 of the door, the guiding groove is a straight groove, and the guiding groove is inclined relative to the side wall 32 of the door. The guiding groove extends from its end close to the first side edge W in a direction away from the front wall 31 and the side wall 32 of the door. Wherein, the included angle between the guiding groove and the front wall 31 of the door is θ. The above setting increases the detectability of the machining precision of the guiding portion 50, facilitates detection and adjustment to ensure precision, so as to improve the accuracy of the movement control of the door body 30.

[0151] In some embodiments of the present application, the end of the door body 30 close to the side wall 32 of the door is recessed toward the inner cavity side of the door body 30 to form a mounting table, and the second hinge member (the guiding portion 50 and the guiding portion 60) is arranged on the mounting table.

[0152] As a settable manner, such as Figures 5 - 6As shown, the extension portion 402 of the hinge plate 40 includes a first extension plate 4021 and a second extension plate 4022; wherein, one end of the first extension plate 4021 is connected to the connecting portion 401, and the other end is connected to the second extension plate 4022. The first extension plate 4021 has a first side close to the first body side wall. Along the direction from the connecting portion 401 to the second extension plate 4022, the first side extends obliquely away from the first body side wall. The second extension plate 4022 has a second side close to the pick-and-place opening side. The connection between the first side and the second side defines an avoidance opening on the side of the extension portion 402 close to the first body side wall. The opening end of the avoidance opening faces the first body side wall. When the door body 30 is opened, the avoidance opening allows the part of the door body 30 close to the door side wall 32 to gradually enter the avoidance opening, ensuring that the door body 30 does not interfere with the extension portion 402 when opened, enabling the door body 30 to be opened to a larger angle.

[0153] As another settable manner, the door body 30 has a door corner portion 7 close to the door side wall 32; the door corner portion 7 has a top plate 71 and a side plate 72 forming a part of the door side wall 32. The top plate 71, the side plate 72 and the mounting table jointly define a receiving space 70. When the door body 30 is closed, at least part of the extension portion 402 of the first hinge member is received in the receiving space 70 to cooperate with the second hinge member. The above-mentioned door corner portion 7 shields the second hinge member and the extension portion 402 of the first hinge member when the door body 30 is closed, reducing dust from falling in, and effectively ensuring the smoothness of the cooperation of the hinge assembly. With the above-mentioned setting of the avoidance opening, when the door body 30 is opened, it avoids the interference between the door body 30 (the side plate 72 of the door corner portion 7 or the area of the front wall 31 of the door close to the first side edge W) and the extension portion 402, effectively ensuring that the door body 30 can be opened to a larger angle.

[0154] In some embodiments of the present application, when the door body 30 is closed, the guiding portion 50 is close to the front wall 31 relative to the plane where the pick-and-place opening is located. The first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are arranged at one end of the extension portion 402 away from the pick-and-place opening. Optionally, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are arranged on the second extension plate 4022, so that there is enough space on the extension portion 402 to set the avoidance opening to avoid interference when the door body 30 is opened, thereby ensuring the opening angle of the door body 30. On the other hand, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are arranged on the second extension plate 4022 away from the pick-and-place opening, applying a force to the position of the door body 30 close to the front wall 31 when the door body 30 is in the closed state, and cooperating with the force of the hinge plate 40, increasing the overall supporting effect of the first hinge member on the door body 30, and preventing the door body 30 from sinking under the action of gravity and causing the door body 30 to deform and shift.

[0155] As a configurable way, when the door body 30 is closed, the first hinge axis 41, the second hinge axis 42 and the third hinge axis 43 are located on the side of the centroid plane P close to the front wall 31 of the door.

[0156] As a configurable way, the distance between the second hinge axis 42 and the first hinge axis 41 is less than the distance between the first hinge axis 41 and the third hinge axis 43. In a configurable way, the third hinge axis 43 is located on the side of the first hinge axis 41 and the second hinge axis 42 away from the access opening.

[0157] In some embodiments of the present application, the guiding track line K includes a first guiding segment K1, a second guiding segment K2, a third guiding segment K3, a fourth guiding segment K4, a fifth guiding segment K5, a sixth guiding segment K6 and a seventh guiding segment K7 that are connected end to end in sequence; that is, the guiding track line K is in a closed ring shape, and the guiding groove is an annular closed groove to effectively limit the movement of the second hinge axis 42 and the third hinge axis 43, and at the same time prevent the second hinge axis 42 and the third hinge axis 43 from disengaging from the guiding groove. Among them, the connection point of the seventh guiding segment K7 and the first guiding segment K1 is denoted as the first connection position a, the connection point of the first guiding segment K1 and the second guiding segment K2 is denoted as the second connection position b, the connection point of the second guiding segment K2 and the third guiding segment K3 is denoted as the third connection position c, the connection point of the third guiding segment K3 and the fourth guiding segment K4 is denoted as the fourth connection position d, the connection point of the fourth guiding segment K4 and the fifth guiding segment K5 is denoted as the fifth connection position e, the connection point of the fifth guiding segment K5 and the sixth guiding segment K6 is denoted as the sixth connection position f, and the connection point of the sixth guiding segment K6 and the seventh guiding segment K7 is denoted as the seventh connection position g.

[0158] As a configurable way, when the door body 30 is closed, the second hinge axis 42 cooperates with the seventh guiding segment K7 of the guiding groove. That is, when the door body 30 is closed, the second hinge axis 42 is located on the side of the first connection position a away from the first guiding segment K1. When the door body 30 is opened from the closed state, the second hinge axis 42 first approaches the first connection position a along the seventh guiding segment K7.

[0159] Among them, the second connection position b is located on the side of the first connection position a close to the door side wall 32 and the front wall 31 of the door;

[0160] The third connection position c is located on the side of the second connection position b away from the front wall 31 and the door side wall 32; in this embodiment, the third connection position c is located on the side of the first connection position a away from the door side wall 32 and close to the front wall 31 of the door;

[0161] The fourth connection position d is located on the side of the third connection position c close to the rear wall 33 of the door and away from the door side wall 32. In this embodiment, the fourth connection position d is located on the side of the first connection position a close to the front wall 31 of the door.

[0162] The fifth connection position e is located on the side of the fourth connection position d close to the rear wall 33 of the door and the side wall 32 of the door; in this embodiment, the fifth connection position e is located on the side of the first connection position a close to the rear wall 33 of the door and far from the side wall 32 of the door, and the fifth connection position e is located on the side of the third connection position c far from the side wall 32 of the door.

[0163] The sixth connection position f is located on the side of the fifth connection position e close to the rear wall 33 of the door and the side wall 32 of the door. In this embodiment, the sixth connection position f is located on the side of the second connection position b far from the side wall 33 of the door. As an optional setting method, the sixth connection position f is located on the side of the third connection position c close to the side wall 32 of the door.

[0164] The seventh connection position g is located on the side of the sixth connection position f close to the front wall 31 of the door and the side wall 32 of the door. In this embodiment, the seventh connection position g is located on the side of the first connection position a close to the side wall 32 of the door and the rear wall 33 of the door.

[0165] That is, in the projection on the plane where the front wall 31 of the door is located, the seventh connection position g, the first connection position a, the second connection position b, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are successively far from the side wall 32 of the door.

[0166] In the projection on the plane where the side wall 32 of the door is located, the second connection position b, the third connection position c, the fourth connection position d, the first connection position a, the fifth connection position e, the seventh connection position g, and the sixth connection position f are successively far from the front wall 31 of the door. As an optional setting method, in the projection on the plane where the side wall 32 of the door is located, relative to the first connection position a, the fifth connection position e is closer to the seventh connection position g.

[0167] As an optional setting method, in the projection on the plane where the side wall 32 of the door is located, the fifth connection position e and the seventh connection position g are adjacent to each other, and the fourth connection position d and the first connection position a are adjacent to each other. Optionally, in the projection on the plane where the side wall 32 of the door is located, the distance between the fifth connection position e and the seventh connection position g is less than 1.5 mm; the distance between the first connection position a and the fourth connection position d is less than 1.5 mm.

[0168] As an optional setting method, in the projection on the plane where the side wall 32 of the door is located, the projections of the connection positions, namely the second connection position b, the third connection position c, the fourth connection position d, the first connection position a, the fifth connection position e, the seventh connection position g, and the sixth connection position f, are successively denoted as b`, c`, d`, a`, e`, g`, and f`; among them, the distance between two projection points is represented by their two letters, for example, the distance between the projection point of the sixth connection position f and the projection point of the first connection position a is denoted as f`a`. Among them, f`a`:b`a` belongs to any value of 4 to 6; a`g`:f`a` belongs to any value of 0.5 to 0.7; d`c`:c`b` belongs to any value of 1.8 to 2.2.

[0169] In the projection on the plane where the front door wall 31 is located, the projections of the respective connecting positions, namely the second connecting position b, the third connecting position c, the fourth connecting position d, the first connecting position a, the fifth connecting position e, the seventh connecting position g, and the sixth connecting position f, are sequentially denoted as b'', c'', d'', a'', e'', g'', and f''. Among them, the distance between two projection points is represented by the two letters thereof. For example, the distance between the projection point of the sixth connecting position f and the projection point of the first connecting position a is denoted as f''a''. b''f'':f''e'' belongs to any value within 0.6 to 0.7; a''b'':b''d'' belongs to any value within 0.3 to 0.4; a''b'':b''c'' belongs to any value within 1 to 1.2; e''d'':c''d'' belongs to any value within 0.2 to 0.3; a''g'':a''b'' belongs to any value within 0.4 to 0.6.

[0170] The relative position settings of the respective connecting positions in the above-mentioned projection on the plane where the door side wall 32 is located and in the projection on the plane where the front door wall 31 is located make the guiding track line K smoother; correspondingly, when the door body 30 is opened, the movement of the second hinge shaft 42 and the third hinge shaft 43 relative to the guiding track line K is smoother.

[0171] In some embodiments of the present application, along the direction of approaching the second connecting position b from the first connecting position a, the first guiding section K1 extends in a direction away from the door side wall 32 and closer to the front door wall 31. As another alternative setting method, along the direction of approaching the second connecting position b from the first connecting position a, the first guiding section K1 first extends in a direction closer to the door side wall 32 and the front door wall 31, and then extends in a direction away from the door side wall 32 and closer to the front door wall 31; in this setting, the point with the minimum distance between the first guiding section K1 and the door side wall 32 is denoted as the convex point a1.

[0172] Along the direction of approaching the third connecting position c from the second connecting position b, the second guiding section K2 extends in a direction away from the door side wall 32 and the front door wall 31;

[0173] Along the direction of approaching the fourth connecting position d from the third connecting position c, the third guiding section K3 extends in a direction away from the door side wall 32 and the front door wall 31. Among them, when the distance between the second guiding section K2 and the front door wall 32 increases by a unit distance, the increase amount of the distance between the second guiding section K2 and the door side wall 32 is denoted as ζ1; when the distance between the third guiding section K3 and the front door wall 32 increases by a unit distance, the increase amount of the distance between the third guiding section K3 and the door side wall 32 is denoted as ζ2; ζ1 < ζ2. That is, relative to the change trend of the second guiding section K2, the third guiding section K3 moves away from the door side wall 32 more rapidly.

[0174] Along the direction approaching the fifth connection position e from the fourth connection position d, the fourth guiding section K4 first extends in a direction away from the door sidewall 32 and the front door wall 31, and then extends in a direction approaching the door sidewall 32 and away from the front door wall 31; in this setting, the point with the maximum distance between the fourth guiding section K4 and the door sidewall 32 is denoted as the convex point d1; among them, the convex point d1 is the point with the maximum distance between the guiding track line K and the door sidewall 32.

[0175] Along the direction approaching the sixth connection position f from the fifth connection position e, the fifth guiding section K5 extends in a direction approaching the door sidewall 32 and away from the front door wall 31; among them, the guiding track line K bulges towards its guiding centroid O at the fifth connection position e to transition and connect the fourth guiding section K4 and the fifth guiding section K5.

[0176] Along the direction approaching the seventh connection position g from the sixth connection position f, the sixth guiding section K6 extends in a direction approaching the door sidewall 32 and the front door wall 31;

[0177] Along the direction approaching the first connection position a from the seventh connection position g, the seventh guiding section K7 extends in a direction away from the door sidewall 32 and approaching the front door wall 31, and the seventh guiding section K7 bulges in a direction away from the guiding centroid O.

[0178] That is, in this embodiment, the second connection position b is the point where the guiding track line K has the minimum distance from the front door wall 31, the convex point d1 is the point where the guiding track line K has the maximum distance from the door sidewall 32, the sixth connection position f is the point where the guiding track line K has the maximum distance from the front door wall 31, and the seventh connection position g is the point where the guiding track line K has the minimum distance from the door sidewall 32.

[0179] The part where the fourth guiding section K4 extends in a direction away from the door sidewall 32 and the front door wall 31 is denoted as the first segment (dd1), and the part where the fourth guiding section K4 extends in a direction approaching the door sidewall 32 and away from the front door wall 31 is denoted as the second segment (d1e).

[0180] Among them, along the direction pointing from the front door wall 31 to the rear door wall 33, the rate of decrease in the distance between the second segment of the fourth guiding section K4 and the door sidewall 32 is denoted as λ1, and the rate of decrease in the distance between the fifth guiding section K5 and the door sidewall 32 is denoted as λ2; among them, λ1 < λ2. That is, relative to the door sidewall 32, the change trend of the fourth guiding section K4 is gentler than that of the fifth guiding section K5.

[0181] Among them, along the direction from the front door wall 31 to the rear door wall 33, the rate at which the distance between the first segment of the fourth guiding segment K4 and the door side wall 32 increases is denoted as λ3, and the rate at which the distance between the third guiding segment K3 and the door side wall 32 increases is denoted as λ4, where λ3 < λ4. That is, relative to the door side wall 32, the changing trend of the distance between the first segment of the fourth guiding segment K4 and the door side wall 32 is gentler than that of the third guiding segment K3. The guiding trajectory line K extends rapidly away from the door side wall 32 along the third guiding segment K3 from the third connection position c to the fourth connection position d, and starts to extend rapidly away from the front door wall 31 along the first segment of the fourth guiding segment K4 from the fourth connection position d to the fifth connection position e, thereby forming a corner where the closed annular guiding trajectory line K is close to the front door wall 31 and away from the door side wall 31 in the area near the fourth connection position d.

[0182] Among them, the sixth guiding segment K6 includes an inflection point h located between the sixth connection position f and the seventh connection position g. Along the direction from the rear door wall 33 to the front door wall 31, the rate at which the distance between the fh segment of the sixth guiding segment K6 and the door side wall 32 decreases is denoted as λ5, and the rate at which the distance between the hg segment of the sixth guiding segment K6 and the door side wall 32 decreases is denoted as λ6, where λ6 < λ5. That is, relative to the door side wall 32, the changing trend of the distance between the hg segment of the sixth guiding segment K6 and the door side wall 32 is gentler than that of the distance between the fh segment of the sixth guiding segment K6 and the door side wall 32. Among them, the inflection point h is the changing point of the increasing rate of the distance between the guiding trajectory line K and the door side wall 32. The guiding trajectory line K approaches the door side wall 32 rapidly along the sixth guiding segment K6 from the sixth connection position f to the inflection point h, and starts to extend rapidly close to the front door wall 31 along the sixth guiding segment K6 from the inflection point h to the seventh connection position g, thereby forming a corner where the closed annular guiding trajectory line K is away from the front door wall 31 and the door side wall 31 in the area near the inflection point h.

[0183] As an implementable manner, when the door body 30 is closed, the second hinge shaft 42 is in contact and cooperation with the first connection position a of the guiding groove; the third hinge shaft 43 is in contact and cooperation with the fourth connection position d of the guiding groove. Correspondingly, at this time, the first hinge shaft 41 is located on the guiding trajectory line S.

[0184] As a settable manner, when the door body 30 is closed, the second hinge shaft 42 is in interference fit with one end of the seventh guiding segment K7 of the guiding groove close to the front door wall 31; the third hinge shaft 43 is in interference fit with one end of the third guiding segment K3 of the guiding groove away from the door side wall 32. When the door body 30 continues to move in the closing direction after being closed to an opening angle of 0°, the above setting of the guiding trajectory line K can apply resistance to the movement of the second hinge shaft 42 and the third hinge shaft 43 relative to the guiding groove, so as to prevent the door body 30 from continuing to move in the closing direction from the closed state, and can avoid the door body 30 from over-closing due to excessive force and then rebounding and opening; and enable the door body 30 to stay stably in the closed state, increasing the stability of the door body 30 in the closed state.

[0185] Specifically, it can be set that when the door body 30 is closed, the side wall of the third hinge shaft 43 away from the door side wall 32 and close to the front wall 31 of the door cooperates with the guiding groove; when the door body 30 continues to move in the closing direction after being closed to an opening angle of 0°, the distance between the guiding track line S and the third guiding section K3 is not sufficient to allow the third hinge shaft 43 to move relative to the third guiding section K3.

[0186] In some embodiments of the present application, the guiding track line S has a starting guiding position I0, a first guiding position I1, a second guiding position I2, a third guiding position I3, a fourth guiding position I4, a fifth guiding position I5, a sixth guiding position I6, a seventh guiding position I7, an eighth guiding position I8, a ninth guiding position I9, and a tenth guiding position I 10 。

[0187] In some embodiments of the present application, the fifth guiding position I5 is the end point position of the guiding track line S close to the door side wall 32, and the tenth guiding position I 10 is the end point position of the guiding track line S away from the door side wall 32; the tenth guiding position I 10 is located on the side of the fifth guiding position I5 away from the door side wall 32 and the front wall 31 of the door. In addition, the starting guiding position I0 is located between the fifth guiding position I5 and the tenth guiding position I 10 , and the starting guiding position I0, the first guiding position I1, and the second guiding position I2 are sequentially away from the door side wall 32. The second guiding position I2, the third guiding position I3, the fourth guiding position I4, and the fifth guiding position I5 are sequentially close to the door side wall 32, and the fifth guiding position I5, the sixth guiding position I6, the seventh guiding position I7, the eighth guiding position I8, the ninth guiding position I9, and the tenth guiding position I 10 are sequentially away from the door side wall 32. In this embodiment, relative to the tenth guiding position I 10 , the starting guiding position I0 is close to the fifth guiding position I5.

[0188] The central axis of the first hinge shaft 41 is denoted as the first central axis I, the central axis of the second hinge shaft 42 is denoted as the second central axis E, and the central axis of the third hinge shaft 43 is denoted as the third central axis F.

[0189] During the opening process of the door body 30, the first hinge shaft 41 moves relative to the guiding groove, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guiding groove and move relative to the guiding groove.

[0190] Among them, in the projection within the plane of the top wall of the box body 10, the first central axis I, the second central axis E, and the third central axis F form an axis triangle IEF.

[0191] As a configurable manner, the axial triangle IEF is an obtuse triangle; ∠FIE belongs to any value within 172° to 178°; ∠IEF belongs to any value within 3.5° to 4°; that is, the axial triangle IEF is an obtuse triangle with one angle close to 180°. The relative positions of the above first hinge axis 41, second hinge axis 42, and third hinge axis 43 form the position setting of an obtuse triangle, enabling both the second hinge axis 42 and the third hinge axis 43 to cooperate with the guide groove, and the first hinge axis 41 to cooperate with the guiding groove, increasing the assembly dimension of the first hinge axis 41, second hinge axis 42, and third hinge axis 43 for the door body 30 (guide groove). The axial triangle IEF formed by the first hinge member forms a surface fit with the guide groove surface of the second hinge member; that is, the fitting dimension of the surface fit between the first hinge member and the second hinge member effectively improves the fitting stability of the first hinge member and the second hinge member. Additionally, the second hinge axis 42 and the third hinge axis 43 are respectively located on opposite sides of the first hinge axis 41 and cooperate with the guide groove, increasing the stability.

[0192] As a configurable manner, the longest side EF of the obtuse triangular axial triangle IEF is located on the side of the vertex I of the axial triangle IEF away from the access opening. The above setting enables the second hinge axis 42 and the third hinge axis 43 with a larger distance to cooperate with the guide groove on the side away from the access opening to support the door body 30, further increasing the support stability of the three hinge axes for the door body 30. At the same time, it reduces the dimension of the axial triangle IEF in the direction perpendicular to the access opening, and can meet the requirement of arranging the first hinge axis 41, second hinge axis 42, and third hinge axis 43 on the second extension plate 4022 to achieve the avoidance between the door corner 7 and the hinge plate 40. Specifically configurable, in the projection on the plane where the top wall of the box body is located, the straight line IE where the first central axis I and the second central axis E are located is parallel to the access opening. Additionally, configurable, the third central axis F is located on the side of the straight line IE where the first central axis I and the second central axis E are located away from the access opening.

[0193] In this embodiment, the guide groove and the guiding groove are arranged on the door body 30, and the first hinge axis 41, second hinge axis 42, and third hinge axis 43 are fixed to the box body 10 through the hinge plate 40. The movement of the door body 30 relative to the box body 10 is equivalent to the relative movement in a plane (two-dimensional plane) parallel to the top wall of the box body 10. In the plane parallel to the top wall of the box body 10, when the door body 30 moves relative to the box body 10, the movement of the guide groove or the guiding groove relative to the axial triangle IEF is equivalent to the movement of the guide groove or the guiding groove relative to the hinge plate 40 (box body 10), and is also equivalent to the movement of the door body 30 relative to the box body 10. In this embodiment, for the convenience of description, the axial triangle IEF is used to represent the box body 10, and the guide groove or the guiding groove is used to represent the door body 30.

[0194] When the door body 30 is opened, there is a relative motion relationship between the first hinge shaft 41 and the guide groove, and between the second hinge shaft 42 or the third hinge shaft 43 and the guide groove. In this embodiment, for the convenience of description, the door body 30 (guide groove or guide channel) is used as a stationary reference object, and the first hinge shaft 41 moves relative to the guide groove, and the second hinge shaft 42 or the third hinge shaft 43 moves relative to the guide groove to illustrate the specific process of opening the door body 30.

[0195] As Figures 7 - 33 shown, the movement of the shaft triangle IEF relative to the guide groove / guide channel is equivalent to the movement of the box body 10 (hinge plate 40) relative to the door body 30.

[0196] Among them, the movement of the first hinge shaft 41 relative to the guide groove is equivalent to the movement of the first central axis I relative to the guide track line S; the movement of the second hinge shaft 42 or the third hinge shaft 43 relative to the guide groove is equivalent to the movement of the second hinge shaft 42 or the third hinge shaft 43 relative to the guide track line K.

[0197] In this embodiment, the maximum opening angle G of the refrigerator max > 90° is taken as an example for illustration. Among them, in the following description, G max = G 10 is taken as an example for illustration. It should be noted that the maximum angle G max can be other angles, which is not limited by G max = G 10 .

[0198] When the door body 30 is opened from the closed state to the maximum angle G max (= G 10 ), during the process that the door body 30 rotates and opens to a specific angle, the relative positions of the first hinge shaft 41 relative to the guide groove, and the second hinge shaft 42 and the third hinge shaft 43 relative to the guide groove are as follows:

[0199] Among them, represents the opening angle of the door body 30. When the door body 30 is in the closed state, the opening angle

[0200] As Figure 7 shown, when When the door body 30 is in the closed state, the second central axis E is at E0 relative to the door body 30, and the third central axis F is at F0 relative to the door body 30; that is, the axis triangle IEF is at the initial triangle position I0E0F0 relative to the door body 30. The centroid plane P is on the side of the initial triangle position I0E0F0 away from the front door wall 31; that is, the centroid plane P is on the side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the front door wall 31. That is, when the door body 30 is closed, the centroid plane P is not between the hinge axes.

[0201] As Figure 8 shown, when the door body 30 rotates from the closed state to G2; during the above opening process, the first central axis I moves along the guiding track line S in a direction away from the door side wall 32; the second hinge axis 42 cooperates with the seventh guiding section K7, and the second hinge axis 42 moves relative to the seventh guiding section K7 in a direction approaching from the seventh connection position g to the first connection position a; the third hinge axis 43 cooperates with the fourth guiding section K4, and the third hinge axis 43 moves relative to the fourth guiding section K4 in a direction approaching from the fourth connection position d to the fifth connection position e. That is, during the process of the door body 30 rotating from the closed state to G2, while the first hinge axis 41 moves relative to the guiding groove in a direction away from the door side wall 32, the second hinge axis 42 moves relative to the guiding groove in a direction away from the door side wall 32 and approaching the front door wall 31, and the third hinge axis 43 moves relative to the guiding groove in a direction away from the door side wall 32 and the front door wall 31.

[0202] Above, when the opening angle of the door body 30 is within a certain range, the movement trends in this opening angle range are consistent; the only difference is that: for different opening angles, the position of the first hinge axis 41 relative to the guiding track line S is different, the position of the second hinge axis 42 relative to the seventh guiding section K7 of the guiding track line K is different, and the position of the third hinge axis 43 relative to the fourth guiding section K4 of the guiding track line K is different. Thus, when the opening angle is within a certain range, selecting one of the opening angles can represent the relative positions of the first hinge axis 41 relative to the guiding groove, the second hinge axis 42, and the third hinge axis 43 relative to the guiding groove when the door body 30 is opened to the corresponding range. Specifically, as Figure 8 and Figure 24 shown, taking to represent the position within this opening angle range for comparison with other states when the door body 30 is opened.

[0203] As Figure 8 and Figure 24As shown, when the door body 30 is opened to G1, the first central axis I is located at the first guiding position I1 of the guiding track line S; wherein, the first guiding position I1 is located on the side of the initial guiding position I0 away from the door side wall 32 and the front door wall 31; the seventh guiding section K7 of the guiding track line K is matched with the second hinge axis 42, and the fourth guiding section K4 is matched with the third hinge axis 43. At this time ( when), the second central axis E is located at E1 relative to the door body 30, and the third central axis F is located at F1 relative to the door body 30; that is, the axis triangle IEF is located at the first triangle position I1E1F1 relative to the door body 30. The centroid plane P is located on the side of the first triangle position I1E1F1 away from the front door wall 31; that is, the centroid plane P is located on the side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the front door wall 31. That is, when the door body 30 is closed, the centroid plane P is not between the hinge axes.

[0204] As Figure 9 shown in Figure 25 ... when, the door body 30 rotates and opens to G2; the first central axis I is located at the second guiding position I2 of the guiding track line S; wherein, the second guiding position I2 is located on the side of the first guiding position I1 away from the door side wall 32 and the front door wall 31. The second hinge axis 42 is matched with the seventh guiding section K7 of the guiding track line K. At the same time, the third hinge axis 43 is matched with the fourth guiding section K4. At this time ( when), the second central axis E is located at E2 relative to the door body 30, and the third central axis F is located at F2 relative to the door body 30; that is, the axis triangle IEF is located at the second triangle position I2E2F2 relative to the door body 30. The centroid plane P is located on the side of the second triangle position I2E2F2 away from the front door wall 31; that is, the centroid plane P is located on the side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the front door wall 31. That is, when the door body 30 is closed, the centroid plane P is not between the hinge axes. In some embodiments of the present application, when the door body 30 is opened from the closed state to G2, the first hinge axis 41 moves linearly in a direction away from the door side wall 32 and the front door wall 31, and when the door body 30 continues to open from G2, the moving direction of the first hinge axis 41 turns; that is, when the door body 30 continues to open from G2, the first hinge axis 41 will turn from moving linearly in a direction away from the door side wall 32 and the front door wall 31 to moving linearly in a direction close to the door side wall 32 and the front door wall 31.

[0205] As Figure 10 shown in Figure 26 ... When the door body 30 rotates and opens to G3, the first central axis I is located at the third guiding position I3 of the guiding track line S. Among them, the third guiding position I3 is located on the side of the second guiding position I2 close to the door side wall 32 and the front door wall 31. The second hinge axis 42 cooperates with the first connecting position a of the guiding track line K, and the fourth guiding section K4 cooperates with the third hinge axis 43. At this time ( When), the second central axis E is located at E3 relative to the door body 30, and the third central axis F is located at F3 relative to the door body 30. That is, the axis triangle IEF is located at the third triangle position I3E3F3 relative to the door body 30. The centroid plane P passes through the third triangle position I3E3F3. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 away from the front door wall 31. That is, when the opening angle of the door body 30 is G4, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0206] Combined with Figures 8 - 10 , it can be seen from the process of the door body 30 opening from G2 to G3 that there is When , the centroid plane P is located on the side of the axis triangle IEF away from the front door wall 31. That is, the centroid plane P is located on the side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the front door wall 31. That is, when the opening angle of the door body 30 is , the centroid plane P is not between the hinge axes. When , the centroid plane P passes through the axis triangle IEF. That is, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 away from the front door wall 31. Combining the process of the door body 30 opening from the closed state to G2, it can be obtained that when the opening angle of the door body 30 is not greater than G`1, the centroid plane P is not between the hinge axes; while when the opening angle of the door body 30 is greater than G`1, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0207] As Figure 11 , Figure 27 shown, When, the door body 30 rotates and opens to G4. The first central axis I is located at the fourth guiding position I4 of the guiding track line S. Among them, the fourth guiding position I4 is located on the side of the third guiding position I3 close to the door side wall 32 and the front door wall 31. The second hinge axis 42 cooperates with the first guiding section K1 of the guiding track line K, and the third hinge axis 43 cooperates with the fifth connecting position e. At this time ( When the opening angle of the door body 30 is G4, the second central axis E is at E4 relative to the door body 30, and the third central axis F is at F4 relative to the door body 30; that is, the axis triangle IEF is at the fourth triangle position I4E4F4 relative to the door body 30. The centroid plane P passes through the fourth triangle position I4E4F4; specifically, the centroid plane P is between the first hinge axis 41 and the third hinge axis 43, and is on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front door wall 31. That is, when the opening angle of the door body 30 is G4, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0208] As Figure 12 , Figure 28 shown, When the opening angle of the door body 30 is G5, the door body 30 rotates and opens to G5; the first central axis I is at the fifth guiding position I5 of the guiding track line S; among them, the fifth guiding position I5 is on the side of the fourth guiding position I4 close to the door side wall 32 and the front door wall 31, and is the end point position of the guiding track line S close to the door side wall 32; that is, the first hinge axis 41 moves to the end point of the guiding groove close to the door side wall 32. The second hinge axis 42 cooperates with the first guiding section K1 of the guiding track line K, and the third hinge axis 43 cooperates with the fifth guiding section K5. At this time ( When), the second central axis E is at E5 relative to the door body 30, and the third central axis F is at F5 relative to the door body 30; that is, the axis triangle IEF is at the fifth triangle position I5E5F5 relative to the door body 30. The centroid plane P passes through the fifth triangle position I5E5F5; specifically, the centroid plane P is between the first hinge axis 41 and the third hinge axis 43, and is on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front door wall 31. That is, when the opening angle of the door body 30 is G5, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0209] As Figure 13 shown, When the door body 30 rotates from G5 to G7; during the above opening process, the first central axis I moves along the guiding track line S away from the door side wall 32 and the front wall 31 of the door; the second hinge axis 42 cooperates with the first guiding section K1, and the second hinge axis 42 moves relative to the first guiding section K1 in the direction approaching from the first connection position a to the second connection position b; the third hinge axis 43 cooperates with the fifth guiding section K5, and the third hinge axis 43 moves relative to the fifth guiding section K5 in the direction approaching from the fifth connection position e to the sixth connection position f. That is, during the process of the door body 30 rotating from G5 to G7, while the first hinge axis 41 moves relative to the guiding groove away from the door side wall 32 and the front wall 31 of the door, the second hinge axis 42 moves relative to the guiding groove away from the door side wall 32 and closer to the front wall 31 of the door, and the third hinge axis 43 moves relative to the guiding groove continuously closer to the door side wall 32 and away from the front wall 31 of the door.

[0210] Above, the opening angle of the door body 30 When, the movement trends in this opening angle interval are consistent; the only difference is that: with different opening angles, the positions of the first hinge axis 41 relative to the guiding track line S are different, the positions of the second hinge axis 42 relative to the first guiding section K1 of the guiding track line K are different, and the positions of the third hinge axis 43 relative to the fifth guiding section K5 of the guiding track line K are different. Thus, within the opening angle When, selecting one of the opening angles can represent the relative positions of the first hinge axis 41 relative to the guiding groove, the second hinge axis 42, and the third hinge axis 43 relative to the guiding groove when the door body 30 is opened to the corresponding interval. Specifically, as Figure 13 And Figure 29 Shown, taking To represent the position within this opening angle interval for comparison with when the door body 30 is opened to other states.

[0211] Such as Figure 13 And Figure 29 Shown, when the door body 30 is opened to G6, the door body 30 rotates and opens to G6; the first central axis I is located at the sixth guiding position I6 of the guiding track line S; among them, the sixth guiding position I6 is on the side of the fifth guiding position I5 away from the door side wall 32 and the front wall 31 of the door. The second hinge axis 42 cooperates with the first guiding section K1 of the guiding track line K, and the third hinge axis 43 cooperates with the fifth guiding section K5. At this time ( When the opening angle is G6, the second central axis E is at E6 relative to the door body 30, and the third central axis F is at F6 relative to the door body 30; that is, the axis triangle IEF is at the sixth triangular position I6E6F6 relative to the door body 30. The centroid plane P passes through the sixth triangular position I6E6F6; specifically, the centroid plane P is between the first hinge axis 41 and the third hinge axis 43, and is on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front door wall 31. That is, when the opening angle of the door body 30 is G6, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0212] As Figure 14 and Figure 30 shown, when the door body 30 is opened to G7, the first central axis I is at the seventh guiding position I7 of the guiding track line S; among them, the seventh guiding position I7 is on the side of the sixth guiding position I6 away from the door side wall 32 and the front door wall 31; the second connecting position b of the guiding track line K cooperates with the second hinge axis 42, and the fifth guiding section K5 cooperates with the third hinge axis 43. At this time ( When the opening angle is G7), the second central axis E is at E7 relative to the door body 30, and the third central axis F is at F7 relative to the door body 30; that is, the axis triangle IEF is at the seventh triangular position I7E7F7 relative to the door body 30. During the process of the above-mentioned door body 30 rotating from G6 to G8, the centroid plane P always passes through the seventh triangular position I7E7F7. Specifically, the centroid plane P is between the first hinge axis 41 and the third hinge axis 43, and is on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front door wall 31. That is, when the opening angle of the door body 30 is G7, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0213] As Figure 15 、 Figure 31 shown, When the opening angle is G8, the door body 30 rotates and opens to G8; the first central axis I is at the eighth guiding position I8 of the guiding track line S; among them, the eighth guiding position I8 is on the side of the seventh guiding position I7 away from the door side wall 32 and the front door wall 31. The second hinge axis 42 cooperates with the second guiding section K2, and the third hinge axis 43 cooperates with the fifth guiding section K5. At this time ( When the opening angle of the door body 30 is G6, the second central axis E is located at E8 relative to the door body 30, and the third central axis F is located at F8 relative to the door body 30; that is, the axis triangle IEF is located at the eighth triangle position I8E8F8 relative to the door body 30. The centroid plane P passes through the eighth triangle position I8E8F8; specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front wall 31 of the door. That is, when the opening angle of the door body 30 is G6, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0214] In some embodiments of the present application, That is, when the door body 30 is opened to 90°, the second hinge axis 42 is in contact and cooperation with the second guiding section K2 of the guiding track line K. Optionally, when the door body 30 is closed, IE is parallel to the front wall 31 of the door. That is, when the door body 30 is closed, the straight line I0E0 where the first central axis I and the second central axis E are located is parallel to the front wall 31 of the door. Correspondingly, when the door body 30 is opened to 90°, the straight line I8E8 where the first central axis I and the second central axis E are located is perpendicular to the front wall 31 of the door.

[0215] In some embodiments of the present application, when the door body 30 is opened to 90°, the second hinge axis 42 is in interference fit with the guiding track line K.

[0216] In some embodiments of the present application, when the door body 30 is opened to 90°, the third hinge axis 43 is in interference fit with the fifth guiding section K5.

[0217] As above, when the door body 30 is opened to 90°, under the action of the inner wall of the guiding groove on the second hinge axis 42 and the third hinge axis 43, the door body 30 can be rotated and stopped in the current state.

[0218] As described above, along the direction approaching from the second connection position b to the third connection position c, the second guiding section K2 extends away from the door side wall 32 and the front door wall 31; that is, along the direction approaching from the second connection position b to the third connection position c, the distance between the guiding track line K and the front door wall 31 gradually increases. At this time, the door body 30 is opened to 90°, the straight line where the first central axis I and the second central axis E are located is perpendicular to the front door wall 31, the pressure of the guiding groove on the second hinge shaft 42 is perpendicular to the front door wall 31, and there is a tendency for relative movement between the second hinge shaft 42 and the guiding groove in the direction parallel to the front door wall 31, while the distance between the second guiding section K2 and the front door wall 31 gradually increases along the direction approaching from the second connection position b to the third connection position c. When the door body 30 continues to open from 90°, the extension form of the second guiding section K2 has the tendency to prevent the relative movement between the second hinge shaft 42 and the guiding groove in the direction parallel to the front door wall 31 when the door body 30 is opened to 90°, so that the door body 30 can be stably stopped at the 90° state, facilitating the user to take and place items from the storage room after opening the door body 30 to 90°. By the user continuing to apply an external force, the door body 30 can overcome the resistance exerted by the third guiding section K3 and continue to open.

[0219] As an adjustable manner, when the door body 30 is opened to 90°, the second hinge shaft 42 cooperates with the second connection position b.

[0220] As Figure 16 and Figure 32 shown, when the door body 30 is opened to G9, the first central axis I is located at the ninth guiding position I9 of the guiding track line S; among them, the ninth guiding position I9 is located on the side away from the door side wall 32 and the front door wall 31 of the eighth guiding position I8; the second hinge shaft 42 cooperates with the third connection position c, and the third hinge shaft 43 cooperates with the sixth guiding section K6. At this time ( at this time), the second central axis E is located at E9 relative to the door body 30, and the third central axis F is located at F9 relative to the door body 30; that is, the axis triangle IEF is located at the ninth triangle position I9E9F9 relative to the door body 30. The centroid plane P passes through the ninth triangle position I9E9F9; specifically, the centroid plane P is located between the first hinge shaft 41 and the third hinge shaft 43, and is located on the side of the first hinge shaft 41 away from the second hinge shaft 42 away from the front door wall 31. That is, when the opening angle of the door body 30 is G9, the centroid plane P is between the hinge shafts, and each hinge shaft cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0221] When the door body 30 is opened to G 10 at this time, the first central axis I is located at the tenth guiding position I of the guiding track line S 10 ; among them, the tenth guiding position I 10On the side of the ninth guiding position I9 away from the door side wall 32 and the front door wall 31; that is, the first hinge shaft 41 moves to one end of the guiding groove away from the door side wall 31; the third guiding section K3 of the guiding track line K cooperates with the second hinge shaft 42, and the sixth guiding section K6 cooperates with the third hinge shaft 43. At this time ( When), the second central axis E is located at E relative to the door body 30 10 , the third central axis F is located at F relative to the door body 30 10 ; that is, the axis triangle IEF is located at the tenth triangle position I relative to the door body 30 10 E 10 F 10 . The centroid plane P passes through the tenth triangle position I 10 E 10 F 10 ; specifically, the centroid plane P is located between the first hinge shaft 41 and the third hinge shaft 43, and on the side of the first hinge shaft 41 away from the second hinge shaft 42 and away from the front door wall 31. That is, when the opening angle of the door body 30 is G 10 , the centroid plane P is between the hinge shafts, and each hinge shaft cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0222] In some embodiments of the present application, when the door body 30 is opened to G 10 , the second hinge shaft 42 and the third hinge shaft 43 are in contact and cooperation with the inner wall of the guiding groove.

[0223] In some embodiments of the present application, when the door body 30 is opened to G 10 , the first hinge shaft 41 is located at the end of the guiding groove away from the door side wall 32 and the front door wall 31, and the third hinge shaft 43 is in contact and cooperation with the sixth guiding section K6 of the guiding groove. As a settable method, when the door body 30 is opened to G 10 , the third hinge shaft 43 cooperates with the inflection point h of the guiding groove. As a settable method, along the direction from the rear door wall 33 to the front door wall 31, the rate of decrease of the distance between the fh section of the sixth guiding section K6 and the door side wall 32 is greater than the rate of decrease of the distance between the hg section of the sixth guiding section K6 and the door side wall 32, so as to form a corner area in the area of the guiding groove close to the door side wall 32 and away from the front door wall 31.

[0224] In some embodiments of the present application, when the door body 30 is opened to G 10 , the first hinge shaft 41 is located at the end of the guiding groove away from the door side wall 32 and the front door wall 31, and the third hinge shaft 43 is in contact and cooperation with the sixth guiding section K6 of the guiding groove. As a settable method, when the door body 30 is opened to G 10 , the third hinge shaft 43 cooperates with the inflection point h of the guiding groove.

[0225] In this embodiment, along the direction of approaching the seventh connection position g from the sixth connection position f, the sixth guiding section K6 extends in the direction of approaching the door side wall 32 and the front door wall 31. That is, along the direction from the door rear wall to the front door wall, the distance between the sixth guiding section K6 and the door side wall 32 gradually decreases; when the door body 30 is opened to G 10 the third hinge shaft 43 is in interference fit with the inflection point h of the sixth guiding section K6 of the guiding groove. The above settings can enable the door body 30 to stay stably at G 10 state, which is convenient for the user to open the door body 30 to G 10 and then take and place items in the storage room; and prevent the door body 30 from being opened excessively under the action of external force, resulting in damage to the hinge assembly. As an optional setting method, at this time, the third hinge shaft 43 is in interference fit with the inflection point h of the guiding groove.

[0226] Assume that the door body 30 continues to open from G 10 The third hinge shaft 43 has a tendency to move in the direction of approaching the seventh connection position g relative to the sixth guiding section K6, and the second hinge shaft 42 has a tendency to move in the direction of approaching the fourth connection position d relative to the third guiding section K3. In this embodiment, along the direction of approaching the seventh connection position g from the sixth connection position f, the sixth guiding section K6 extends in the direction of approaching the door side wall 32 and the front door wall 31, and the distance between the sixth guiding section K6 and the door side wall 32 decreases. Among them, the extension trend of the sixth guiding section K6 causes the third hinge shaft 43 to have a tendency to move away from the door side wall 32 while keeping the first hinge shaft 41 moving along the guiding groove and the third hinge shaft 43 cooperating with the sixth guiding section K6. In this embodiment, since the first hinge shaft 41 is located at the end of the guiding groove away from the door side wall 32 at this time, it cannot continue to move away from the door side wall 32, thereby preventing the movement trend of the third hinge shaft 43. Enable the door body 30 to stay stably at G 10 state.

[0227] As an optional setting method, when the door body 30 is opened to G 10 the third hinge shaft 43 is in interference fit with the sixth guiding section K6. Additionally, optionally, the second hinge shaft 42 is in interference fit with the third guiding section K3, further increasing the stability of the door body 30 to maintain its current state when opened to the maximum.

[0228] In some embodiments of the present application, when the door body 30 is opened to G 10When the third hinge axis 43 is close to the door side wall 32 and away from the front wall 31 of the door, the side of the sixth guiding section K6 away from the front wall 31 of the door is in interference fit with the end of the third hinge axis 43. When the three hinge axes rotate simply with the central axis of the first hinge axis 41 as the rotation axis, the distance between the third hinge axis 43 and the door side wall 32 decreases, and the rate of decrease of the distance between the third hinge axis 43 and the door side wall 32 is greater than the rate of decrease of the distance between the sixth guiding section K6 and the door side wall 32, so that the door side wall 32 of the door body 30 moves in a direction away from the first hinge axis 41 relative to the hinge axis.

[0229] Combined with the settings of the door body 30 being opened to various angles as described above, in some embodiments of the present application, during the process of the door body 30 being opened from the closed state to G9, the second hinge axis 42 and the third hinge axis 43 are always in contact and cooperation with the inner wall of the guiding groove.

[0230] As a settable setting, the above contact and cooperation in the closed state of the door body 30, when the door body 30 is opened to 90°, and when the door body 30 is opened to the maximum angle G max (=G 10 ) are all interference fits, so that the door body 30 can stop in its current state.

[0231] The above 0° < G1 < G`1 < G2 < G3 < G4 < G5 < G6 < G7 < G8 < G9 < G 10 ; G1, G2, G3, G4, G5, G6, G7, G8, G9, G 10 are successively recorded as 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, the eighth angle G8, the ninth angle G9, and the tenth angle G 10 . In this embodiment, G max =G 10 . It can be set that G8 = 90°.

[0232] Combined with the above analysis of the states of the door body 30 at different angles when it is opened, during the process of the door body 30 being opened from the closed state to G`1, the centroid plane P is located on the side of the axis triangle IEF away from the front wall 31 of the door; that is, the centroid plane P is located on the side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the front wall 31 of the door. During the process of the door body 30 being opened from G`1 to G 11 , the centroid plane P passes through the axis triangle IEF; that is, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42. That is, when the opening angle of the door body 30 is not greater than G`1, the centroid plane P is not between the hinge axes; while when the opening angle of the door body 30 is greater than G`1, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0233] As a settable manner, G`1:G max Belongs to any value in the range of 0.75 to 1. As a settable manner, G`1 belongs to 25° to 27°, G max =G 10 = 125°; It can be seen that during most of the opening stroke (75% - 80% of the stroke) of the door body 30, the centroid plane F is always located between the first hinge axis 41 and the third hinge axis 43, effectively ensuring stable force application during the entire opening process of the door body 30, and the door body 30 opens more stably.

[0234] In summary, it can be seen that when the door body 30 is opened from the closed state to G max =G 10 During the process, the first hinge axis 41 moves linearly relative to the guiding groove first in a direction away from the door side wall 32 and the door front wall 31, then in a direction close to the door side wall 32 and the door front wall 31, and then in a direction away from the door side wall 32 and the door front wall 31; the second hinge axis 42 and the third hinge axis 43 move clockwise relative to the guiding groove throughout the process.

[0235] Among them, during the process of the door body 30 being opened from the closed state to G2, the first hinge axis 41 moves linearly relative to the guiding groove in a direction away from the door side wall 32 and the door front wall 31, the second hinge axis 42 moves relative to the seventh guiding section K7; the third hinge axis 43 moves relative to the fourth guiding section K4;

[0236] During the process of the door body 30 being opened from G2 to G5, the first hinge axis 41 moves linearly relative to the guiding groove in a direction close to the door side wall 32 and the door front wall 31, the second hinge axis 42 first moves relative to the seventh guiding section K7, and then relative to the first guiding section K1; the third hinge axis 43 first moves relative to the fourth guiding section K4, and then relative to the fifth guiding section K5;

[0237] During the process of the door body 30 being opened from G5 to G 10 During the process, the first hinge axis 41 moves linearly relative to the guiding groove in a direction away from the door side wall 32 and the door front wall 31, the second hinge axis 42 first moves relative to the first guiding section K1, then relative to the second guiding section K2, and then relative to the third guiding section K3; the third hinge axis 43 first moves relative to the fifth guiding section K5, and then relative to the sixth guiding section K6.

[0238] In summary, When the door body 30 is opened from the closed state to G max =G 10It is divided into three stages. Hereinafter, taking the door body 30 (guide groove / guide channel) as a static reference object, the relative movement conditions of these three stages will be described from the perspective of the mating relationship between the first hinge shaft 41 and the guide groove, and the second hinge shaft 42 and the third hinge shaft 43 and the guide channel:

[0239] In the first stage, combined with Figures 7 - 9 , as Figures 19 - 20 shown, the process in which the door body 30 rotates from the closed state to G2 and opens.

[0240] In this first stage, the door body 30 opens from 0° to G2 successively through G1. During this process, the first central axis I moves in a straight line along the guiding track line S of the guide groove in a direction away from the door side wall 32 and the front door wall 31, the second hinge shaft 42 moves relative to the seventh guiding section K7; the third hinge shaft 43 moves relative to the fourth guiding section K4. When the door body 30 opens to G2, the first hinge shaft 41 moves to the second guiding position I2 of the guiding track line S.

[0241] In the above opening process of the first stage, it is described with the door body 30 (guide groove / guide channel) as the reference object.

[0242] When the door body 30 opens from 0° to G2, the shaft triangle IEF rotates clockwise from the position I0E0F0 and moves successively to the side close to the door side wall 32 and the front door wall 31 to the positions I1E1F1 and I2E2F2 (I0E0F0 → I1E1F1 → I2E2F2). Since the shaft triangle IEF is arranged on the hinge plate 40, the shaft triangle IEF represents the movement of the box body 10. Then it is concluded that: taking the door body 30 (guide groove / guide channel) as the reference object, the box body 10 opens clockwise relative to the door body 30 and moves a certain distance in a direction away from the door side wall 32 and the front door wall 31.

[0243] In summary, during the process of the door body 30 opening from the closed state to G2, taking the door body 30 (guide groove / guide channel) as the reference object, 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 front door wall 31 relative to the door body 30. According to the relativity of motion, taking the box body 10 as the reference object, during the process of the door body 30 opening from the closed state to G2, the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 side and a displacement parallel to the door side wall 33 and pointing to the front door wall 31 side relative to the box body 10.

[0244] In the second stage, combined with Figures 9 - 12 , refer to Figure 19 , Figure 21 shown, the process in which the door body 30 rotates from G2 to G5 and opens.

[0245] In this second stage, the door body 30 is opened from G2 to G5 successively through G3 and G4. During this process, the first central axis I moves linearly along the guiding track line S of the guiding groove towards the direction close to the door side wall 32 and the front door wall 31; the second hinge axis 42 first moves relative to the seventh guiding section K7, and then relative to the first guiding section K1; the third hinge axis 43 first moves relative to the fourth guiding section K4, and then relative to the fifth guiding section K5. When the door body 30 is opened to G5, the first hinge axis 41 moves to the fifth guiding position I5, which is the end point of the guiding track line S close to the door side wall 32 and the front door wall 31.

[0246] In the opening process of the above second stage, the door body 30 (guiding groove / guiding channel) is used as the reference object for description.

[0247] When the door body 30 is opened from G2 to G5, the shaft triangle IEF rotates clockwise from the position of I2E2F2 and moves successively to the positions of I3E3F3, I4E4F4, and I5E5F5 (I2E2F2 → I3E3F3 → I4E4F4 → I5E5F5) towards the side close to the door side wall 32 and the front door wall 31. Since the shaft triangle IEF is arranged on the hinge plate 40, the shaft triangle IEF represents the movement of the box body 10. Then it can be concluded that: taking the door body 30 (guiding groove / guiding channel) as the reference object, the box body 10 is opened clockwise relative to the door body 30 and moves a certain distance towards the direction close to the door side wall 32 and the front door wall 31. In summary, during the process of the door body 30 being opened from G2 to G5, taking the door body 30 (guiding groove / guiding channel) as the reference object, the box body 10 has a displacement parallel to the rear door wall 33 and pointing towards the door side wall 32 and a displacement parallel to the door side wall 33 and pointing towards the front door wall 31 relative to the door body 30. According to the relativity of motion, taking the box body 10 as the reference object, during the process of the door body 30 being opened from G2 to G5, the door body 30 has a displacement parallel to the rear door 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 front door wall 31 relative to the box body 10.

[0248] In the third stage, combined with Figures 12 - 17 , as Figure 19 , Figures 22 - 23 shown, during the process of the door body 30 being rotated and opened from G5 to G max = G 10 .

[0249] In this third stage, the door body 30 is opened from G5 successively through G6, G7, G8, G9 to G 10 . During this process, the first central axis I moves linearly along the guiding track line S of the guiding groove towards the direction away from the door side wall 32 and the front door wall 31; the second hinge axis 42 first moves relative to the first guiding section K1, then relative to the second guiding section K2, and then relative to the third guiding section K3; the third hinge axis 43 first moves relative to the fifth guiding section K5, and then relative to the sixth guiding section K6.

[0250] During the opening process of the third stage above, the door body 30 (guide groove / guide channel) is used as a reference.

[0251] The door body 30 is opened from G5 to G 10 When it reaches, the shaft triangle IEF rotates clockwise from the position of I5E5F5 and moves successively to the side away from the door side wall 32 and the door front wall 31 to I6E6F6, I7E7F7, I8E8F8, I9E9F9, I 10 E 10 F 10 (I6E6F6 → I7E7F7 → I8E8F8 → I9E9F9 → I 10 E 10 F 10 ). Since the shaft triangle IEF is arranged on the hinge plate 40, the shaft triangle IEF represents the movement of the box body 10. Then it can be obtained that: taking the door body 30 (guide groove / guide channel) as a reference, the box body 10 opens clockwise relative to the door body 30 and moves a certain distance in the direction away from the door side wall 32 and the door front wall 31.

[0252] To sum up, during the process of the door body 30 being opened from G5 to G 10 , taking the door body 30 (guide groove / guide channel) as a reference, 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 relative to the door body 30. According to the relativity of motion, taking the box body 10 as a reference, during the process of the door body 30 being opened from G5 to G 10 , the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 side and a displacement parallel to the door side wall 33 and pointing to the door front wall 31 side relative to the box body 10.

[0253] Combining the situations of the first stage, the second stage and the third stage, it can be known that: according to the relativity of motion, taking the box body 10 as a reference, the door body 30 has a displacement component parallel to the door rear wall 33 and a displacement component parallel to the door side wall 32 relative to the box body 10. Among them, the displacement component parallel to the door rear wall 33 is denoted as the first-direction displacement The displacement component parallel to the door side wall 32 is the second-direction displacement During different opening stages of the door body 30, the first-direction displacement and the second-direction displacement will have different directions.

[0254] In the above first stage and third stage, the first-direction displacement points to the door side wall 32 side, and the second-direction displacement points to the door front wall 31 side. While in the second stage, the first-direction displacement Pointing away from one side of the door sidewall 32, second-direction displacement Pointing away from one side of the front wall 31 of the door.

[0255] Here, it should be added that "pointing to the door sidewall 32" refers to the direction from the opposite end of the door body 30 to the door sidewall 32 on the door sidewall 32;

[0256] "Pointing away from the door sidewall 32" refers to the direction from the door sidewall 32 to the opposite end of the door body 30 on the door sidewall 32;

[0257] "Pointing to one side of the front wall 31 of the door" refers to the direction from the rear wall 33 of the door to one side of the front wall 31 of the door;

[0258] "Pointing away from one side of the front wall 31 of the door" refers to the direction from the front wall 31 of the door to one side of the rear wall 33 of the door. In addition, it should be noted that the above first-direction displacement Second-direction displacement Are all instantaneous relative displacements to illustrate the current movement direction of the door body 30 relative to the box body 10.

[0259] See Figures 34 - 39 As shown; in the plane of the top wall of the box body 10, 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 pick-and-place opening is located, and B is located on the side (front side) of O far from the pick-and-place opening; OA is parallel to the plane where the pick-and-place opening is located, and A is located on the side (outer side) of O far from the second body sidewall. That is, in the displacement coordinate system AOB, the direction from the second body sidewall to the first body sidewall is positive, and the direction from the pick-and-place opening to the front wall 31 of the door when the door body 30 is closed (from the rear to the front) is 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 does not move with the opening of the door body 30.

[0260] (1) As Figures 34 - 38 Shown, during the process of the door body 30 opening from the closed state to 90°, during the counterclockwise rotation and opening of the door body 30 relative to the box body 10, the door sidewall 32, the rear wall 33 of the door, and the front wall 31 of the door also rotate counterclockwise during this stage of the opening process. In the plane of the top wall of the box body 10, along the direction from the second side edge N to the first side edge W (the rear wall 33 of the door points to the front wall 31 of the door), the door sidewall 32 extends outward and forward; along the direction from the door sidewall 32 to the opposite end of the door body 30 on the door sidewall 32, the rear wall 33 of the door extends inward and forward.

[0261] During the above opening process (from the closed state to 90°), the door side wall 32 starts to rotate counterclockwise from a state parallel to the reference plane M0. The angle between the door side wall 32 and the plane where the pick-and-place opening is located gradually decreases, and the angle between it and the reference plane M0 gradually increases. That is, during the process of the door body 30 opening from the closed state to 90°, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends towards the side away from the second body side wall and the pick-and-place opening. At the same time, as the opening angle of the door body 30 increases, the angle between the door rear wall 33 and the plane where the pick-and-place opening is located gradually increases, and the angle between the door rear wall 33 and the reference plane M0 gradually decreases. That is, during the process of the door body 30 opening from the closed state to 90°, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the door rear wall 33 extends towards the direction away from the first body side wall and the pick-and-place opening.

[0262] (1.1) Combining the description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 opening from the closed state to G2 (G2 < 90°), it can be known that during the process of the door body 30 opening from the closed state to G2, taking the box body 10 as a reference, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing towards the door side wall 32. A second-direction displacement parallel to the door side wall 32 and pointing towards the door front wall 31. That is, the first-direction displacement Points to the outer rear side of the box body 10 (outward and backward), and the second-direction displacement Points to the outer front side of the box body 10 (outward and forward).

[0263] As Figures 34 - 35 Shown in the figure, in the displacement coordinate system AOB, during the process of the door body 30 opening from the closed state to G2, the first-direction displacement of the door body 30 Is located in the fourth quadrant (A > 0, B < 0), and the second-direction displacement Is located in the first quadrant (A > 0, B > 0). Decompose the first-direction displacement And the second-direction displacement Respectively on the A-axis and the B-axis; the first-direction displacement The component displacement on the A-axis is The component displacement on the B-axis is The second-direction displacement The component displacement on the A-axis is The component displacement on the B-axis is Among them, under the trajectory feature setting of the present invention, there is Then there is, 0, That is, during the process of the door body 30 opening from the closed state to G2, in the displacement coordinate system AOB, the door body 30 has a first component displacement and the second component displacement Therefore, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move along the positive direction of the A axis and move toward the positive direction of the B axis; that is, when the door body 30 is opened from the closed state to G2 (G2 < 90°), the door body 30 has a tendency to move outward and forward relative to the box body 10.

[0264] (1.2) Combining the description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 being opened from G2 to G5 (G2 < G5 < 90°), it can be known that: during the process of the door body 30 being opened from G2 to G5, taking the box body 10 as a reference, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 a second-direction displacement parallel to the door side wall 32 and pointing to the side away from the door front wall 31 That is, the first-direction displacement points to the inner front side (inward and forward side) of the box body 10, and the second-direction displacement points to the inner rear side (inward and backward side) of the box body 10.

[0265] As Figure 34 and Figure 36 shown, in the displacement coordinate system AOB, during the process of the door body 30 being opened from G2 to G5, the first-direction displacement of the door body 30 is located in the second quadrant (A < 0, B > 0), and the second-direction displacement is located in the third quadrant (A < 0, B < 0). The first-direction displacement and the second-direction displacement are respectively decomposed into displacements on the A axis and the B axis; the component displacement of the first-direction displacement on the A axis is and the component displacement on the B axis is The second-direction displacement has a component displacement on the A axis of and a component displacement on the B axis of Among them, under the trajectory feature setting of the present invention, there is then there is That is, during the process of the door body 30 being opened from G2 to G5, in the displacement coordinate system AOB, the door body 30 has a first component displacement and a second component displacement Therefore, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move along the negative direction of the A axis and move toward the positive direction of the B axis; that is, during the process of the door body 30 being opened from G2 to G5, the door body 30 has a tendency to move inward and forward relative to the box body 10.

[0266] (1.3) Combining with the description of the displacement direction of the door body 30 relative to the box body 10 during the process of opening the door body 30 from G5 (G5 < 90°) to G8 = 90°, it can be known that: during the process of opening the door body 30 from G5 (G5 < 90°) to G8 = 90°, taking the box body 10 as a reference, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 A second-direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31 That is, the first-direction displacement Points to the outer rear side (outward and backward side) of the box body 10, and the second-direction displacement Points to the outer front side (outward and forward side) of the box body 10.

[0267] As shown in 34 and Figure 37 As shown, in the displacement coordinate system AOB, during the process of opening the door body 30 from G5 to 90°, the first-direction displacement of the door body 30 Is located in the fourth quadrant (A > 0, B < 0), and the second-direction displacement Is located in the first quadrant (A > 0, B > 0). For the first-direction displacement And the second-direction displacement Perform displacement decomposition on the A-axis and B-axis respectively; the component displacement of the first-direction displacement On the A-axis is And the component displacement on the B-axis is The second-direction displacement The component displacement on the A-axis is And the component displacement on the B-axis is Among them, under the trajectory feature setting of the present invention, there is Then there is, 0, That is, during the process of the door body 30 from G5 to 90°, in the displacement coordinate system AOB, the door body 30 has a first component displacement And a second component displacement From this, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move along the positive direction of the A-axis and move in the negative direction of the B-axis; that is, during the process of opening the door body 30 from G5 to 90°, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0268] As Figure 9 As shown, when the door body 30 is opened to 90°, the door side wall 33 is parallel to the plane where the pick-and-place opening is located and perpendicular to the reference plane M0; at this time, the door rear wall 33 is parallel to the reference plane M0 and perpendicular to the plane where the pick-and-place opening 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 the inside to the outside, and the door rear wall 33 extends from the back to the front.

[0269] Combined with the description of the displacement direction of the door body 30 relative to the box body 10 during the opening process from the first stage to the third stage, it is concluded that when the door body 30 is opened to 90°, taking the box body 10 as a reference, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32. A second-direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31. That is, the first-direction displacement. Pointing to the rear side of the box body 10, the second-direction displacement. Pointing to the outside of the box body 10.

[0270] Such as Figure 38 As shown, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the first-direction displacement of the door body 30 Is along the B axis and points to the negative direction of the B axis, and the second-direction displacement Is along the A axis and points to the positive direction of the A axis. For the first-direction displacement And the second-direction displacement They are respectively decomposed into displacements on the A axis and the B axis; the first-direction displacement The component displacement on the A axis is The component displacement on the B axis is The second-direction displacement The component displacement on the A axis is The component displacement on the B axis is Among them, That is, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the door body 30 has a first component displacement And a second component displacement From this, it can be concluded that: relative to the box body 10, the door body 30 has a tendency to move along the positive direction of the A axis and move towards the negative direction of the B axis; that is, when the door body 30 is opened at 90°, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0271] (3) Such as Figures 9 - 12 As shown, when the door body 30 is rotated and opened from 90° to G 10 (G 10 >90°) during the process, during the counterclockwise rotation of the door body 30 relative to the box body 10, the door side wall 32 also rotates counterclockwise during the opening process of this stage. In the plane of the top wall of the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends outward and backward; 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 outward and forward.

[0272] During the above opening process, the door side wall 32 starts to rotate counterclockwise from a state perpendicular to the reference plane M0. The angle between the door side wall 32 and the plane where the pick-and-place opening is located gradually increases, and the angle between it and the reference plane M0 gradually decreases; that is, when the door body 30 rotates from 90° to open 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 toward the side away from the second body side wall and close to the pick-and-place opening. At the same time, the angle between the door rear wall 33 and the plane where the pick-and-place opening is located gradually decreases, and the angle between it and the reference plane M0 gradually increases; that is, when the door body 30 rotates from 90° to open to G 10 During the process, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 with respect to the door side wall 32, the door rear wall 33 extends toward the direction away from the second body side wall and the pick-and-place opening.

[0273] When the door body 30 rotates from 90° to open to G 10 During the process, taking the box body 10 as a reference, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 A second-direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31 That is, the first-direction displacement Points to the inner rear side of the box body 10 (inward and backward), and the second-direction displacement Points to the outer rear side of the box body 10 (outward and backward).

[0274] As Figure 34 And Figure 39 Shown, in the displacement coordinate system AOB, when the door body 30 rotates from 90° to G 10 During the opening process, the first-direction displacement of the door body 30 Is located in the

[0275] Third quadrant (A < 0, B < 0), and the second-direction displacement Is located in the fourth quadrant (A > 0, B < 0). The first-direction displacement And the second-direction displacement Are respectively decomposed into displacements on the A-axis and the B-axis; the first-direction displacement The component displacement on the A-axis is The component displacement on the B-axis is The second-direction displacement The component displacement on the A-axis is The component displacement on the B-axis is Among them, under the trajectory feature setting of the present invention, there is Then there is That is, when the door body 30 rotates from 90° to G 10During the process, in the displacement coordinate system AOB, the door body 30 has a first component displacement and a second component displacement Thus, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move in the positive direction of the A axis and move in the negative direction of the B axis; that is, during the process of the door body 30 opening from G5 to 90°, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0276] In summary, during the whole process of the door body 30 opening from the closed state to G 10 (G 10 > 90°), relative to the box body 10, the movement of the door body 30 is divided into three stages. The door body 30 first moves outward, then moves inward, and then has a tendency to move outward.

[0277] It should be noted that in this embodiment, only some angles in the range of 0 to 90°, 90°, and some angles in the range of 90° to G max = G 10 are taken as representatives to illustrate the overall movement trend. However, it can represent the movement trend in the corresponding range and can illustrate that the hinge assembly with the above trajectory characteristics of the present invention can make the door body 30 have a tendency to move outward → inward → outward during the opening process.

[0278] In this embodiment, the door body 30 has a tendency to move outward in the first stage of opening. Specifically, the first hinge shaft 41 moves a certain distance away from the door side wall 32 and the front door wall 31 relative to the guide groove, so that the door body 30 moves outward a certain distance. During the process of the door body 30 rotating and opening from the closed state to G2, while the first hinge shaft 41 moves away from the door side wall 32 and the front door wall 31 relative to the guide groove, the second hinge shaft 42 moves in the direction away from the door side wall 32 and close to the front door wall 31 relative to the guide groove, and the third hinge shaft 43 moves in the direction away from the door side wall 32 and the front door wall 31 relative to the guide groove. In addition, in this embodiment, during the process of the door body 30 opening from the closed state to G2, the door body 30 moves inward and moves forward a certain distance at the same time, so that the door body 30 quickly moves away from the box body 10, effectively avoiding squeezing the door seal 5.

[0279] In this embodiment, the door body 30 has a tendency to move inward during the second stage of opening. Specifically, during the process of the door body 30 rotating from G2 to G5, the first hinge shaft 41 moves a certain distance relative to the guiding groove towards the door side wall 32 and the front door wall 31, so that the door body 30 moves inward a certain distance. In some embodiments of the present application, while the first hinge shaft 41 moves relative to the guiding groove towards the door side wall 32 and the front door wall 31, the second hinge shaft 42 moves relative to the guiding groove away from the door side wall 32 and towards the front door wall 31, and the third hinge shaft 43 moves relative to the guiding groove towards the door side wall 32 and away from the front door wall 31. The above settings cause the door body 30 to move inward during the process of rotating from G2 to G5. The above settings are applicable to the scenario where the refrigerator is installed in an embedded manner in a cabinet. When the door body 30 is opened, moving inward can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, limiting the distance by which the first side edge W exceeds the reference plane M0 not to exceed the distance between the cabinet and the side wall of the refrigerator body, effectively avoiding interference between the door body 30 and the cabinet 100 when the door body 30 is opened, further reducing the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of the cabinet 100 space.

[0280] In this embodiment, the second stage is set on the premise of the outward movement of the door body 30 in the first stage above, which can take into account the different requirements of the two stages at the same time and increase the flexible applicability of the refrigerator.

[0281] It should be noted that in some embodiments of the present application, the setting of the second stage above can be set independently and is not restricted by the outward movement setting of the door body 30 during the process of the door body 30 being opened from the closed state to G2 in the first stage; the setting of the door body 30 being opened from the closed state to G2 in cooperation with the setting of the second stage can be different from the setting of the first stage. For example, it can be set that during the process of the door body 30 being opened from the closed state to G2, the door body 30 rotates around the first hinge shaft 41. Additionally, it can be set that during the process of the door body 30 being opened from the closed state to G2, the door body 30 also has a tendency to move inward. Similarly, the setting of the first stage is not restricted by the form of the second stage setting.

[0282] In this embodiment, the door body 30 has a tendency to move outward during the third stage of opening; that is, the door body 30 has a tendency to move outward during the process of continuing to open from G5. Specifically, when the door body 30 is opened from G5 to G 10During the process, the first hinge shaft 41 moves a certain distance away from the door sidewall 32 and the front door wall 31 relative to the guiding groove, so that the door body 30 moves outward a certain distance. While the first hinge shaft 41 moves away from the door sidewall 32 and the front door wall 31 relative to the guiding groove, the second hinge shaft 42 moves relative to the guiding groove first in a direction away from the door sidewall 32 and close to the front door wall 31, and then in a direction away from the door sidewall 32 and the front door wall 31. The third hinge shaft 43 moves relative to the guiding groove first in a direction close to the door sidewall 32 and away from the front door wall 31, and then in a direction close to the door sidewall 32 and the front door wall 31. In the above settings, G5 < 90°. That is, during the process of the door body 30 opening to 90°, it has a tendency to move outward; it can reduce the occlusion of the access opening by the door body 30, facilitating the taking and placing of items, and can also increase the lateral width of the drawer and the space utilization rate of the drawer on the premise of ensuring that the drawer placed in the storage room can be pulled out. In addition, when it is used in conjunction with the second stage, in the scenario of the built-in installation of the refrigerator in the cabinet, the later outward movement of the door body 30 can compensate for the displacement of the door body 30 moving inward in the early stage to avoid the cabinet, so as to make full use of the lateral space of the cabinet and reduce the occlusion of the access opening caused by the inward movement of the door body 30 in the early stage.

[0283] It should be noted that in some embodiments of the present application, the above settings of the third stage can be set independently, and are not restricted by the outward movement setting of the door body 30 during the process of the door body 30 opening from the closed state to G2 in the first stage, nor are they restricted by the inward movement setting of the door body 30 during the process of the door body 30 rotating and opening from G2 to G5 in the second stage. The setting of the door body 30 opening from the closed state to G2 in cooperation with the above third stage setting can be different from the setting of the first stage; similarly, the setting of the door body 30 opening from G2 to G5 in cooperation with the above third stage setting can be different from the setting of the second stage.

[0284] Combined with Figures 40 - 49 As shown in the figure, it is assumed that the door body 30 rotates around the first central axis I of the previous state to the position of the adjacent subsequent state (the door body 30 is represented by a dotted line). During this movement process, the rotation axis of the door body 30 is fixed relative to the door body 30; then under this movement trend, when the door body 30 opens, the first side edge W is located at W` relative to the box body 10; the second side edge N is located at N` relative to the box body 10; the side sealing edge H is located at H` relative to the box body 10. Correspondingly, when the door body 30 is opened to the subsequent state according to the trajectory setting in this embodiment (the door body 30 is represented by a solid line), compared with its previous state, the rotation axis of the door body 30 has changed relative to the door body 30; at this time, the first side edge W is located at W relative to the box body 10; the second side edge N is located at N relative to the box body 10; the side sealing edge H is located at H relative to the box body 10. As Figure 40In it, the position where the door body 30 indicated by the dashed line is the position reached when the door body 30 rotates solely around the first central axis I (I0) of the door body 30 relative to the door body 30 when the door body 30 is closed; the position where the door body 30 indicated by the solid line is the position reached when it is rotated and opened to G1 in the setting manner of the present invention; Figure 41 In it, the position where the door body 30 indicated by the dashed line is the position reached when the door body 30 is rotated and opened to G1 in the rotation manner of the present invention and then rotates solely around the first central axis I (the first central axis I (I1) of the door body 30 in the previous state) of the door body 30 relative to the door body 30 when it is opened to G1 to reach G2; the position where the door body 30 indicated by the solid line is the position reached when it is rotated and opened to G2 in the setting manner of the present invention; similarly Figures 42 - 49 It is a schematic diagram of the position comparison of the above two different opening methods at different opening angles.

[0285] By comparing the setting of the present invention with the way that the door body 30 rotates solely around its first central axis I in the previous state, it can be known that:

[0286] During the process of the door body 30 being opened from the closed state to G2, in the present application, the position W of the first side edge is always on the side of W` away from the second body side wall and the access opening; the position N of the second side edge is always on the side of N` away from the second body side wall and the access opening; the position H of the side sealing edge is always on the side of H` away from the second body side wall and the access opening. That is, during the process of the door body 30 being opened from the closed state to G2, the door body 30 has a tendency to move outwards and forwards.

[0287] During the process of the door body 30 being opened from G2 to G5, in the present application, the position W of the first side edge is always on the side of W` close to the second body side wall and away from the access opening; the position N of the second side edge is always on the side of N` close to the second body side wall and away from the access opening; the position H of the side sealing edge is always on the side of H` close to the second body side wall and away from the access opening. That is, during the process of the door body 30 being opened from G2 to G5, the door body 30 has a tendency to move inwards and forwards.

[0288] During the process of the door body 30 being opened from G5 to G 10 In the process, in the present application, the position W of the first side edge is always on the side of W` away from the second body side wall and close to the access opening; the position N of the second side edge is always on the side of N` away from the second body side wall and close to the access opening; the position H of the side sealing edge is always on the side of H` away from the second body side wall and close to the access opening. That is, during the process of the door body 30 being opened from G5 to G 10 In the process, the door body 30 has a tendency to move outwards and backwards.

[0289] The movement trends in the above stages are consistent with the movement trends in the analysis of the previous stages.

[0290] It should be noted that the comparison between the current position of the door body 30 of the present invention here and the position where the assumed door body 30 rotates solely around the first central axis I from the previous state of the present invention to the opening angle of the door body 30 of the present invention is representative. It can represent the movement trend of the door body 30 relative to the previous state during the opening process of the door body 30 of the present invention. Here, only some selected angles are used for comparison and description to present the movement trend when the door body 30 is opened.

[0291] It should be noted that the movement of the first hinge axis 41 relative to the guiding portion 50, and the movements of the second hinge axis 42 and the third hinge axis 43 relative to the guiding portion 60 can cause the door body 30 to move inward or outward in different stages; the length of the above-mentioned guiding track line K is not limited by all the above-mentioned stages; it can be set to have the movement characteristics of at least one of them.

[0292] In some embodiments of the present application, in combination with Figures 7 - 18 as shown, a first reference plane M1 and a second reference plane M2 are also defined. Among them, as shown in Figure 18 the first reference plane M1 is a plane parallel to the reference plane M0 and perpendicular to the plane where the access opening is located. The first reference plane M1 is the plane of the second body side wall; that is, the first reference plane M1 is parallel to the first body side wall (reference plane M0); the second reference plane M2 is the plane where the access opening of the storage chamber is located. The first reference plane M1 and the second reference plane M2 do not move along with the opening process of the door body 30 relative to the box body 10, and are reference planes that remain stationary relative to the box body 10.

[0293] During the opening process of the door body 30, the first side edge W moves as the door body 30 opens, and its movement trajectory is recorded as the first side edge trajectory line. In the projection on the plane of the top wall of the box body 10, during the opening process of the door body 30, the first side edge W first moves in a direction away from the first reference plane M1 and closer to the second reference plane M2, and then moves in a direction closer to the first reference plane M1 and the second reference plane M2.

[0294] During the opening process of the door body 30, the second side edge N moves as the door body 30 opens, and its movement trajectory is recorded as the second side edge trajectory line. In the projection on the plane of the top wall of the box body 10, during the opening process of the door body 30, the second side edge N first moves in a direction closer to the first reference plane M1 and the second reference plane M2, and then moves in a direction closer to the first reference plane M1 and away from the second reference plane M2.

[0295] As a settable manner, in the projection of the top wall of the box body 10, when the door body 30 is opened from the closed state to G max the second side edge N moves along an arc. That is, in the projection of the top wall of the box body 10, when the door body 30 is opened from the closed state to G maxDuring the process, the trajectory formed by the movement of the second side edge N is an arc. The hinge assembly with the above trajectory characteristics can effectively detect the assembly accuracy and machining accuracy after the door body 30 and the box body 10 are assembled, so that timely adjustment can be made to achieve high-precision matching between the second hinge member on the door body 30 and the first hinge member on the box body 10, meeting the complex movement requirements of precisely controlling the rotation of the door body 30 and its lateral (inward or outward) movement.

[0296] During the opening process of the door body 30, the side sealing edge H moves as the door body 30 opens, and its movement trajectory is recorded as the side sealing edge trajectory line. In the projection on the plane where the top wall of the box body 10 is located, during the opening process of the door body 30, the side sealing edge H first moves towards the direction close to the first reference plane M1 and the second reference plane M2, then moves towards the direction close to the first reference plane M1 and away from the second reference plane M2, and then moves towards the direction away from the first reference plane M1 and away from the second reference plane M2. The above setting that the side sealing edge H finally moves away from the first reference plane M1 can reduce the occlusion of the door body 30 to the access opening.

[0297] As a settable method, in the projection of the top wall of the box body 10, the door body 30 is opened from the closed state to G max During the process, the side sealing edge H moves along an arc. That is, in the projection of the top wall of the box body 10, the door body 30 is opened from the closed state to G max During the process, the trajectory formed by the movement of the side sealing edge H is an arc. The hinge assembly with the above trajectory characteristics can effectively detect the assembly accuracy and machining accuracy after the door body 30 and the box body 10 are assembled, so that timely adjustment can be made to achieve high-precision matching between the second hinge member on the door body 30 and the first hinge member on the box body 10, meeting the complex movement requirements of precisely controlling the rotation of the door body 30 and its lateral (inward or outward) movement.

[0298] It should be noted that the trajectories formed by the movement of the above second side edge N and the side sealing edge H being "arcs" include the standard arcs in the standard mathematical definition (the part between any two points on a circle), and also include curves that have small deviations from the standard arcs in the standard mathematical definition due to processing errors, micro deformations of components, micro wear, reserved clearances, etc. or their own manifestations, but still have the characteristics of arcs (such as fluctuating slightly around the arc).

[0299] In this embodiment, in the projection on the plane where the top wall of the box body 10 is located, the straight line where the side sealing edge H and the second side edge N are located is recorded as HN. During the opening process of the door body 30, during the process that the door body 30 is opened from the closed state to G 10 During the process, the second side edge N is located on the side of the side sealing edge H close to the first body side wall. As a settable method, the door body 30 is opened to G 10When HN is perpendicular to the second reference plane M2; on the one hand, it ensures that the door body 30 has a sufficiently large maximum opening angle, and on the other hand, it prevents the second side edge N from moving to the side of the side sealing edge H away from the first body side wall as the door body 30 opens, thus blocking the access opening.

[0300] In some embodiments of the present application, within the plane of the top wall of the box body 10, the center of the circle where the arc-shaped second side edge locus line is located is denoted as the second side edge center O. N The center of the circle where the arc-shaped side sealing edge locus line is located is denoted as the side sealing edge center O. H Among them, the radius of the circle where the second side edge locus line is located is smaller than the radius of the circle where the side sealing edge locus line is located. The second side edge center O N is located on the side of the side sealing edge center O H away from the access opening and close to the first body side wall, and the second side edge center O N is located on the side of the first central axis I away from the first body side wall and the access opening; the first central axis I is located on the side of the side sealing edge center O H away from the access opening and close to the first body side wall. That is, the first central axis I, the second side edge center O N , and the side sealing edge center O H are successively away from the first body side wall; the side sealing edge center O H , the first central axis I, and the second side edge center O N are successively away from the plane where the access opening is located.

[0301] Among them, the second side edge center O N , the side sealing edge center O H , and the side sealing edge center O H are adjacent to each other. Specifically, in the direction perpendicular to the plane of the first body side wall, the distance between the second side edge center O N and the side sealing edge center O H is any value within the range of 0.2 mm to 0.25 mm; the distance between the first central axis I and the side sealing edge center O H is any value within the range of 0.3 mm to 0.4 mm. In the direction perpendicular to the plane where the access opening is located, the distance between the second side edge center O N and the side sealing edge center O H is any value within the range of 3 mm to 3.5 mm; the distance between the first central axis I and the side sealing edge center O H is any value within the range of 2 mm to 2.5 mm.

[0302] Embodiment 2

[0303] In this embodiment 2, as Figures 50 - 53As shown, the refrigerator includes two door bodies 30 arranged oppositely, and the two oppositely arranged door bodies 30 cooperate together to open or close the access opening. On one side of any one of the two door bodies 30 away from its door side wall 32, a side sealing strip 3 is provided; wherein, when the two door bodies 30 are closed, the side sealing strip 3 on any one of the two door bodies 30 is in sealing cooperation 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 into the gap between the two door bodies 30 to effectively seal the space between the two door bodies 30 and the cabinet body to prevent cold air from overflowing.

[0304] Combined with the setting of the hinge assembly in Embodiment 2, the hinge assembly in this embodiment has the motion characteristics of the first stage (refer to Embodiment 1, during the process of the door body 30 being opened from the closed state to G2, the door body 30 moves outward, which will not be elaborated here). That is, in this Embodiment 2, during the process of the door body 30 being opened from the closed state to G2, the door body 30 first moves outward, which can avoid one of the two oppositely arranged door bodies 30 driving the other door body 30 to be opened when one of them is opened, effectively reducing the loss of cold quantity; at the same time, it can effectively reduce the shielding of the access opening by the door body 30.

[0305] Embodiment 3

[0306] Combined with Figures 50 - 53 As shown, as Figure 54 , the refrigerator in this Embodiment 3 is also provided with two oppositely arranged door bodies 30, and the two oppositely arranged door bodies 30 cooperate together to open or close the access opening. On one side of any one of the two door bodies 30 away from its door side wall 32, a side sealing strip 3 is provided; wherein, when the two door bodies 30 are closed, the side sealing strip 3 on any one of the two door bodies 30 is in sealing cooperation 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 into the gap between the two door bodies 30 to effectively seal the space between the two door bodies 30 and the cabinet body to prevent cold air from overflowing. Its setting method is the same as that in Embodiment 2.

[0307] Different from Embodiment 2, the refrigerator in this Embodiment 3 is applicable to the scenario of being embedded in a cabinet.

[0308] Specifically, different from Embodiment 2, combined with the setting of the hinge assembly in Embodiment 1, the hinge assembly in this Embodiment 3 has the overall motion characteristics of the first stage and the second stage (refer to Embodiment 1, during the process of the door body 30 being opened from the closed state to G2, the door body 30 moves outward; during the process of the door body 30 being rotated and opened from G2 to G5, the door body 30 moves inward; which will not be elaborated here). That is, in this Embodiment 3, the hinge assembly makes the door body 30 move in the way of moving outward in the first stage and then moving inward in the second stage during the opening process.

[0309] Specifically, in the third embodiment, when the door body 30 is opened from the closed state to G2, the door body 30 first moves outward. When the door body 30 continues to open from G2, it has a tendency to move inward. With the above settings, on the one hand, it can move outward at the initial stage of opening the door body 30 to avoid driving another door body 30 to open, reducing cold loss; on the other hand, it can make the opened door body 30 move 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, limit the distance that the first side edge W exceeds the reference plane M0 not to exceed the distance between the cabinet and the side wall of the refrigerator body, effectively avoid interference between the door body 30 and the cabinet 100 when the door body 30 is opened, further reduce the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improve the utilization rate of the cabinet 100 space. Moreover, setting the door body 30 to move inward during the process of opening to the maximum angle can reduce the limitation of the cabinet on the maximum angle that the door body 30 can open, so that the door body 30 of the refrigerator installed in the cabinet can open to a larger maximum angle.

[0310] Embodiment Four

[0311] As Figures 55 - 63 shown, in the fourth embodiment of the present invention, the refrigerator includes two relatively arranged door bodies 30, and the two relatively arranged door bodies 30 cooperate together to open or close the access opening. Among them, when the two door bodies 30 are closed, a turning beam 9 is provided on the inner lining surface 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 room of the refrigerator, and the turning beam 9 can be slidably matched with the guide rail 91 to realize the switching of different angles of the turning beam 9 relative to the door body 30. When the two door bodies 30 are closed, the turning beam 9 closes the gap between the two door bodies 30 and the box body 10 to effectively prevent cold air from overflowing.

[0312] Specifically, the turning beam 9 includes a door turning beam rear cover, and the door turning beam rear cover is connected to the door body 30 through a first door hinge and a second door hinge, and the door turning beam rear cover is elastically connected to the two door hinges by torsion springs respectively; among them, the first door hinge is located above the second door hinge. Among them, a guide block 90 is fixedly provided on the top of the door turning beam rear cover, and the guide block 90 is used as a rotating component of the turning beam 9 to cooperate with the guide rail 91 to realize the switching of different angles of the turning beam 9 relative to the door body 30.

[0313] There are through holes for passing the torsion spring force arms on both the door hinge and the door turning beam rear cover, and the upper and lower door hinges are connected to the door turning beam rear cover by torsion springs. The specific connection is that the first door hinge is connected to the door turning beam rear cover by a first torsion spring, and the second door hinge is connected to the door turning beam rear cover by a second torsion spring. When the turning beam 9 rotates around the door hinge, the first torsion spring and the second torsion spring store or release elastic energy, so that the door turning beam rear cover rotates stably and returns in time.

[0314] When the door body 30 is in the open state, due to the action of the torsion spring torque (the first torsion spring and the second torsion spring), the flipping beam 9 closely adheres to one side of the door hinge fixed to the inner lining of the door body 30.

[0315] As Figures 61 - 63 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. When the door body 30 is closed to an angle G S , the guiding block 90 at the topmost end of the flipping beam 9 comes into contact with the guiding rail 91.

[0316] When the door body 30 is closed to the angle G S , an external force is continuously applied. The door body 30 continues to move in the closing direction. The guiding block 90 at the topmost end of the flipping beam 9 enters the guiding rail 91, and the guiding block 90 and the guiding rail 91 interact with each other. During this closing process, due to the pressure of the guiding rail 91 on the guiding block 90, the flipping beam 9 starts to flip, and the torsion spring is compressed radially. When the flipping beam 9 flips through G` F , it reaches the critical value of the torsion spring. Then the torsion spring starts to stretch to release the torsion spring torque so that the flipping beam 9 quickly flips into place; until the door body 30 is closed, at this time the torsion spring torque is released and returns to the relaxed state again. After the door body 30 is closed, the flipping beam 9 contacts the seal provided on the door body 30, effectively preventing cold air from leaking out between the seams of the double-opening doors. If the external force is removed before the flipping beam 9 flips to G` F , because the torsion of the torsion spring does not reach the critical value of the torsion spring, the guiding block 90 at the top of the flipping beam cannot effectively complete the flipping after entering the guiding rail 91 on the box body and is stuck, and the flipping beam cannot automatically complete the flipping, resulting in the door body 30 with the flipping beam not being able to close in place, causing the failure of low-temperature storage in the refrigerator.

[0317] In the fourth embodiment, the first hinge member is at the first mating portion at one end away from the first body side wall. The end of the door body 30 close to the first hinge member is provided with a second mating portion, and the second mating portion is used to cooperate with the first mating portion to realize the locking and unlocking of the door body 30 and the box body 10. As a settable way, the second mating portion is located on the side of the second hinge member away from the door side wall 32.

[0318] 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; as the door body 30 rotates and closes, the free end of the second mating portion gradually approaches the first mating portion.

[0319] When the door body 30 is closed to the angle G B0When the second engaging portion abuts against the first engaging portion; then, under the action of an external force, the door body 30 continues to close, the first engaging portion and the second engaging portion interact with each other, the second engaging portion undergoes elastic deformation, and under the combined action of the external force and the acting force of the first engaging portion, the second engaging portion and the first engaging portion gradually approach each other, and the elastic deformation amount of the second engaging portion gradually increases.

[0320] When the door body 30 is closed to an angle G B1 the elastic deformation amount of the second engaging portion reaches the maximum deformation amount during the closing process of the door body 30.

[0321] When the door body 30 is closed to G B1 and then continues to move in the closing direction, the elastic energy stored in the second engaging portion during the previous deformation is released. Under the combined action of its acting force and the first engaging portion, the second engaging portion returns to the relaxed state and drives the door body 30 to quickly close automatically in place; until the door body 30 is closed, the second engaging portion and the first engaging portion are locked, realizing the locking of the door body 30 and the box body 10. Above, G B0 > G B1 As a settable manner, G B0 is set to any value between 15° and 20°, and G B1 is set to any value between 3° and 8°. In summary, when the door body 30 is closed to G B1 and then, under the interaction between the first engaging portion and the second engaging portion, the door body 30 closes automatically.

[0322] It should be noted that during the closing process of the above door body 30, the external force acts continuously until the door body 30 is closed to G B1 and then, that is, after the door body 30 rotates and closes to the maximum elastic deformation amount of the second engaging portion, the external force is removed, and the door body 30 can automatically complete the flipping. And when the external force is removed after the door body 30 is closed to G B1 the door body 30 has an inertia force, and the inertia force also has the characteristic of keeping the door body 30 in the original closing movement trend.

[0323] In summary, during the process of the door body 30 closing from the angle G B0 to the angle G B1 under the combined action of the external force and the first engaging portion, the second engaging portion undergoes elastic deformation.

[0324] When the door body 30 is closed to G B1 the elastic deformation amount of the second engaging portion reaches the maximum deformation amount during the closing process of the door body 30.

[0325] During the process of the door body 30 closing from G B1 to the closed state, the external force is removed, and the elastic force of the second engaging portion is released, and the door body 30 closes quickly and automatically.

[0326] That is, in the fourth embodiment, with the structural settings of the first mating portion and the second mating portion, the door body 30 has the characteristic of automatic closing during the process from G B1 to the closed state.

[0327] Combined with the setting of the hinge assembly in the second embodiment, the hinge assembly in this embodiment has the motion characteristics of the first stage (refer to the stage where the door body is opened from the closed state to Q2 in the second embodiment, which will not be elaborated here). That is, in the fourth embodiment, during the process of the door body 30 being opened from the closed state to G2, the door body 30 moves outward. Correspondingly, during the process of the door body 30 from G2 to the closed state, the door body 30 has a tendency to move inward.

[0328] As a settable manner, G B1 > G2. That is, during the automatic closing process of the door body 30 (during the process from G B1 to the continued closing), the door body 30 has a tendency to move inward; the door body 30 moves inward, exerting an inward force on the flipping beam 9, and this force prompts the flipping beam to flip. Since in this embodiment, during the process of the door body 30 from G B1 to the continued closing, it has the characteristic of automatic closing, and the door body 30 maintains the tendency of moving inward, the inward force exerted by the door body 30 moving inward on the flipping beam 9 always exists, which can ensure that the flipping beam 9 flips in place and the door body 30 closes in place.

[0329] In some embodiments of the present application, referring to Figures 60 to 63 , 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. The guiding portion 60 and the second mating portion are formed on the mounting block. The first mating portion is formed on the side of the extension portion 402 of the hinge plate 40 away from the door side wall 32.

[0330] Specifically referring to Figures 60 - 63 , the door body 30 has a door end cap 38. In this embodiment, the mounting block provided at the lower end of the door body 30 is taken as an example for illustration. Combining Figures 60 - 63 as shown, a guiding groove is formed on the mounting block. Among them, the guiding groove includes a groove bottom and a circumferential groove wall surrounding the edge of the groove bottom; among them, a guiding groove is formed on the groove bottom of the guiding groove, and the circumferential groove wall of the guiding groove defines a guiding track line K. The door body 30 includes a door end cap 38, and a receiving groove 37 is formed on the door end cap 38 for fixedly mounting the mounting block. As an implementable manner, the mounting block is placed in the receiving groove 37, and then the mounting block is fixedly connected to the door body 30 through a first fixing member. Specifically, the first fixing member can be set as a screw or the like.

[0331] As an implementable manner, the mounting block includes a plate body 81 which is arranged around the outer peripheral side wall of the guiding groove. In this embodiment, the first fixing member connecting the mounting block and the receiving groove 37 fixedly connects the plate body 81 and the door body 30. Optionally, a plurality of first fixing members are distributed around the guiding groove.

[0332] As an optional manner, a first receiving portion recessed towards the inner cavity of the door body 30 is formed on one side of the bottom wall of the receiving groove 37 close to the door side wall 32. At least part of the guiding groove is received in the first receiving portion, and the bottom of the guiding groove is matched with the inner wall of the first receiving portion; the plate body 81 is matched with the bottom wall of the receiving groove 37 to effectively limit the position of the guiding groove.

[0333] As an optional manner, a second receiving portion recessed towards the inner cavity of the door body 30 is formed on the cavity bottom wall of the first receiving portion. The guiding groove is installed in the second receiving portion and is matched with the inner wall of the second receiving portion to limit the guiding groove.

[0334] In some embodiments of the present application, the second engaging portion on the mounting block is set as a locking structure. Specifically, the second engaging portion includes a locking hook 82 provided on the side of the plate body 81 away from the door side wall 32. The locking hook 82 extends towards the side away from the door side wall 32 and bends towards the side close to the door rear wall 33 and the door side wall 32. The opening of the locking hook 82 faces the plate body 81 (the opening of the locking hook 82 faces the door side wall 32), and the free end of the locking hook 82 is located on the side close to the door rear wall 33.

[0335] The first engaging portion provided on the side of the hinge plate 40 away from the first body side wall is set as a stop portion 403. A hooking gap 404 is formed on the side of the stop portion 403 close to the box body 10. When the door body 30 is in the closed state, the free end of the locking hook 82 is received in the hooking gap 404, the stop portion 403 is located inside the locking hook 82, and the locking hook 82 on the door body 30 hooks the stop portion 403 on the hinge plate 40, thereby locking the door body 30 and preventing the door body 30 from not closing tightly and affecting the refrigeration and freezing effects of the refrigerator; when the door body 30 is opened, the locking hook 82 is deformed by force to overcome the block of the stop portion 403, and thus disengages from the stop portion 403.

[0336] The locking hook 82 may include a root connecting portion 83 and a hooking portion 84. The root connecting portion 83 is connected to the plate body 81, and the hooking portion 84 is connected to the root connecting portion 83 and bends towards the side close to the door rear wall 33 and the door side wall 32. A screw passes through the root connecting portion 83 and is connected to the door body 30 to strengthen the connection strength between the root connecting portion 83 and the door body 30, so that only the hooking portion 84 is deformed when the locking hook 82 disengages from the stop portion 403.

[0337] Optionally, the free ends of the hooking portion 84 and the stop portion 403 are both arc-shaped, which is beneficial for the hooking portion 84 to smoothly hook the stop portion 403 or disengage from the stop portion 403 along the arc.

[0338] As Figures 61 - 63 shown, when the door body 30 closes from the open state, under the action of an external force, the door body 30 gradually closes; as the door body 30 rotates and closes, the free end of the hooking portion 84 gradually approaches the stopper portion 403. As Figure 62 shown, when the door body 30 closes to G B0 , the hooking portion 84 abuts against the stopper portion 403; then, under the action of an external force, the door body 10 continues to close, and the stopper portion 403 and the hooking portion 84 interact with each other, causing the hooking portion 84 to elastically deform. Under the combined action of the external force and the acting force of the stopper portion 403, the moving hooking portion 82 gradually enters the hooking gap 404 (that is, the stopper portion 403 enters the hooking portion 84). As Figure 63 shown, when the door body 30 closes to G B1 , the elastic deformation amount of the hooking portion 84 reaches the maximum deformation amount during the closing process of the door body 30. When the door body 30 closes to G B1 and after that, the elastic energy stored in the hooking portion 82 during the previous deformation is gradually released. Under the combined action with the acting force of the stopper portion 403, the hooking portion 82 returns to the relaxed state and drives the hooking portion 82 to further enter the hooking gap 404, so that the door body 30 quickly closes automatically in place until the door body 30 closes and the locking hook 82 locks with the hinge plate 40, realizing the locking of the door body 30 and the box body 10. That is, when the door body 30 closes to G B1 and after that, the door body 30 has the characteristic of automatic closing.

[0339] Embodiment Five

[0340] The refrigerator in this Embodiment Five also includes two relatively arranged door bodies 30, and the two relatively arranged door bodies 30 cooperate together to open or close the access opening. Among them, when the two door bodies 30 are closed, a flipping beam 9 is provided on the inner lining surface of one door body 30 close to one side of the other door body 30. A guiding rail 91 is provided on the top wall of the storage compartment of the refrigerator, and the flipping beam 9 can be slidably engaged with the guiding rail 91 to realize the switching of different angles of the flipping beam 9 relative to the door body 30. When the two door bodies 30 are closed, the flipping beam 9 closes the gap between the two door bodies 30 and the box body 10 to effectively prevent cold air from leaking out. Its setting method is the same as that in Embodiment Four.

[0341] In addition, similar to Embodiment Four, a first matching portion and a second matching portion that cooperate with each other to lock the door body 30 and the box body 10 when the door body 30 is closed are also provided in this Embodiment Five. (The setting method is the same as that in Embodiment Four)

[0342] And it satisfies G B1 > G2. That is, during the process of automatic closing of the door body 30 (during the process of continuing to close from G B1 ), the door body 30 has a tendency to move inward, which can ensure that the flipping beam 9 flips in place and the door body 30 closes in place.

[0343] Different from the fourth embodiment, Figure 64 As shown, the refrigerator of the fifth embodiment can be suitable for being embedded in a cabinet.

[0344] Specifically, different from the fourth embodiment, in combination with the setting of the hinge assembly in the second embodiment, the hinge assembly in the fifth embodiment has the overall motion characteristics of the first stage and the second stage (see the first embodiment, the door body 30 moves outwards during the process of opening from the closed state to G2; the door body 30 moves inwards during the process of rotating from G2 to G5; no further description is given here). That is, in the fifth embodiment, the hinge assembly makes the door body 30 move outwards in the first stage during the opening process, and then moves inwards in the second stage.

[0345] Specifically, in the fourth embodiment, when the door body 30 is opened from the closed state to G2, the door body 30 first moves outward. When the door body 30 continues to open from G2, it has a tendency to move inward. B1 The process of continuing to close along the closing direction has a tendency to move inward, which can ensure that the flip beam 9 flips into place and the door body 30 is closed in place. On the other hand, during the opening process of the door body 30, after the door body 30 moves outward for a certain distance, the door body 30 moves inward, 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 cabinet and the side wall of the refrigerator body, effectively avoiding the interference between the door body 30 and the cabinet 100 when the door body 30 is opened, further reducing the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of the cabinet 100 space. Furthermore, setting the door body 30 to keep moving inward during the process of opening to the maximum angle can reduce the limitation of the cabinet on the maximum angle that the door body 30 can be opened, so that the maximum angle that the door body 30 of the refrigerator installed in the cabinet can be opened is larger.

[0346] Embodiment 6

[0347] The difference between the sixth embodiment and the first embodiment is that in the sixth embodiment, the first stage of the door body 30 opening from the closed state to the stage of G2 moving outward is not provided. Specifically, the first hinge in the sixth embodiment is provided in the same manner as in the first embodiment, and will not be described in detail here. Figures 65 - 67As shown, in the sixth embodiment, when the door body 30 is closed, the positions of the guiding portion 60 and the guiding portion 50 can be the same as the corresponding positions of the guiding portion 60 and the guiding portion when the door body 30 in the first embodiment is opened to any angle from G2 to G5. For the convenience of description, it is taken as an example that when the door body 30 is closed, the position of the guiding portion 60 is the same as the position of the guiding portion 60 when the door body 30 in the first embodiment is opened to G2, and the position of the guiding portion 50 when the door body 30 is closed is the same as the position of the guiding portion 50 when the door body 30 in the first embodiment is opened to G2. However, it should be noted that the setting of the present application is not limited by this G2.

[0348] Specifically, in this embodiment, the guiding portion 60 on the door body 30 rotates clockwise by G2 relative to the guiding portion 60 in the first embodiment, and the guiding portion 50 on the door body 30 rotates clockwise by G2 relative to the guiding portion 50 in the first embodiment.

[0349] Compared with the first embodiment, regarding the setting of the angle θ between the guiding portion 50 and the front door wall 31, in the sixth embodiment, the angle between the guiding portion 50 and the front door wall 31 is θ - G2. It should be noted that in this embodiment, the angle between the guiding portion 50 and the front door wall 31 is not limited to being set as θ - G2; as a setting method, along the direction from the rear door wall 33 to the front door wall 31, the distance between the guiding track line S and the door side wall 32 decreases linearly.

[0350] For unified description, the guiding positions on the guiding track line S are the same as those in the first embodiment. The fifth guiding position I5 is the end point position of the guiding track line S close to the door side wall 32, and the tenth guiding position I 10 is the end point position of the guiding track line S far from the door side wall 32; the tenth guiding position I 10 is located on the side of the fifth guiding position I5 far from the door side wall 32 and the front door wall 31, and the guiding track line S is a straight line. That is, the guiding portion 50 is in an inclined straight shape, and the guiding groove is an inclined straight groove. The fifth guiding position I5, the sixth guiding position I6, the seventh guiding position I7, the eighth guiding position I8, the ninth guiding position I9, and the tenth guiding position I 10 are successively far from the door side wall 32 and the front door wall 31, and the second guiding position I2, the third guiding position I3, the fourth guiding position I4, and the fifth guiding position I5 are successively close to the door side wall 32 and the front door wall 31.

[0351] In the sixth embodiment, optionally, the guiding track line K includes a first guiding section K1, a second guiding section K2, a third guiding section K3, a fourth guiding section K4, a fifth guiding section K5, a sixth guiding section K6, a seventh guiding section K7 and an eighth guiding section K8 that are connected end to end in sequence; that is, the guiding track line K is in a closed loop shape, and the guiding groove is an annular closed groove, so as to effectively limit the movement of the second hinge shaft 42 and the third hinge shaft 43, and at the same time prevent the second hinge shaft 42 and the third hinge shaft 43 from disengaging from the guiding groove. Among them, the connection point of the seventh guiding section K7 and the first guiding section K1 is denoted as the first connection position a, the connection point of the first guiding section K1 and the second guiding section K2 is denoted as the second connection position b, the connection point of the second guiding section K2 and the third guiding section K3 is denoted as the third connection position c, the connection point of the third guiding section K3 and the fourth guiding section K4 is denoted as the fourth connection position d, the connection point of the fourth guiding section K4 and the fifth guiding section K5 is denoted as the fifth connection position e, the connection point of the fifth guiding section K5 and the sixth guiding section K6 is denoted as the sixth connection position f, the connection point of the sixth guiding section K6 and the seventh guiding section K7 is denoted as the seventh connection position g, and the connection point of the seventh guiding section K7 and the eighth guiding section K8 is denoted as the eighth connection position h.

[0352] In the sixth embodiment, when the door body 30 is closed, the first hinge shaft 41 is located at the second guiding position I2 on the guiding track line S, the second hinge shaft 42 is matched with the eighth guiding section K8; the third hinge shaft 43 is matched with the fifth guiding section K5.

[0353] In some embodiments of the present application, optionally, when the door body 30 is closed, the first hinge shaft 41 is located at the third guiding position I3 on the guiding track line S, the second hinge shaft 42 is matched with the first connection position a; the third hinge shaft 43 is matched with the sixth guiding section K6. At this time, the guiding portion 50 and the guiding portion 60 are rotated by an angle G3 relative to the corresponding guiding portion 50 and guiding portion 60 in the first embodiment.

[0354] In the sixth embodiment, the first connection position a is located on the side of the fifth guiding position I5 close to the door side wall 32. As an optional setting method, the straight line where the first connection position a and the fifth guiding position I5 are located is parallel to the front wall 31 of the door. The second connection position b is located on the side of the first connection position close to the door side wall 32 and the front wall 31 of the door. The second connection position b is the point where the guiding track line K is closest to the door side wall 32.

[0355] The third connection position c is located on the side of the second connection position b close to the front wall 31 of the door and away from the door side wall 32;

[0356] The fourth connection position d is located on the side of the third connection position c away from the front wall 31 of the door and the door side wall 32, and the fourth connection position d is on the side of the second connection position b close to the front wall 31 of the door.

[0357] The fifth connection position e is located on the side of the fourth connection position d close to the front door wall 31 and away from the door side wall 32; in this embodiment, the fifth connection position e is the point where the guiding track line K has the minimum distance from the front door wall 31.

[0358] The sixth connection position f is located on the side of the fifth connection position e away from the front door wall 31 and the door side wall 32. As a settable manner, the sixth connection position f is located on the side of the first connection position a close to the rear door wall 33.

[0359] The seventh connection position g is located on the side of the sixth connection position f close to the door side wall 32 and away from the front door wall 31. As a settable manner, the seventh connection position g is located on the side of the third connection position c away from the door side wall 32 and on the side of the fourth connection position d close to the door side wall 32. The seventh connection position g is the point where the guiding track line K has the minimum distance from the front door wall 31.

[0360] The eighth connection position h is located on the side of the seventh connection position g close to the door side wall 32 and the front door wall 31. As a settable manner, the eighth connection position h is located on the side of the first connection position a close to the door side wall 32 and away from the front door wall 31; and is located on the side of the second connection position b away from the door side wall 32 and the front door wall 31.

[0361] That is, in the projection on the plane of the front door wall 31, the second connection position b, the eighth connection position h, the first connection position a, the third connection position c, the seventh connection position g, the fourth connection position d, the fifth connection position e, and the sixth connection position f are successively away from the door side wall 32. In this embodiment, in the projection on the plane of the front door wall 31, the second connection position b, the eighth connection position h, and the first connection position a are adjacent. The third connection position c, the seventh connection position g, and the fourth connection position d are adjacent.

[0362] As a settable manner, in the projection on the plane of the front door wall 31, the distance between the second connection position b and the first connection position a is less than 2 mm; the distance between the second connection position b and the eighth connection position h is less than 1 mm. The distance between the third connection position c and the fourth connection position d is less than 6 mm; the distance between the third connection position c and the seventh connection position g is less than 1 mm.

[0363] In the projection on the plane of the door side wall 32, the fifth connection position e, the third connection position c, the fourth connection position d, the second connection position b, the first connection position a, the sixth connection position f, the eighth connection position h, and the seventh connection position g are successively away from the front door wall 31. Among them, the first connection position a and the sixth connection position f are adjacent; as a settable manner, in the projection on the plane of the door side wall 32, the distance between the first connection position a and the sixth connection position f is less than 0.5 mm.

[0364] As a configurable manner, a concave point f1 is formed at a position where the sixth guiding section K6 is close to the sixth connecting position f. Specifically, the sixth guiding section K6 protrudes towards its guiding centroid O at the concave point f1. As a configurable manner, when the door body 30 is being opened and the second hinge shaft 42 cooperates with the second connecting position b, the third hinge shaft 43 cooperates with the concave point f1.

[0365] During the opening process of the door body 30, the first hinge shaft 41 moves relative to the guiding groove, and the second hinge shaft 42 and the third hinge shaft 43 move relative to the guiding groove. Similar to the principle described in Embodiment 1, in Embodiment 6, when the door body 30 is in the closed state, the first central axis I is located at the fifth guiding position I5, the second central axis E is located at E5 relative to the door body 30, and the second central axis F is located at F5 relative to the door body 30.

[0366] As Figures 67 - 77 shown, in Embodiment 6, the opening angles of the door body 30 are denoted as Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8. Considering the relevance between Embodiment 6 and Embodiment 1, the movement process of the door body 30 being opened is described using the following 8 angles. Among them, Q0 = 0° = G2 - G2, Q1 = G3 - G2, Q2 = G4 - G2, Q3 = G5 - G2, Q4 = G6 - G2, Q5 = G7 - G2, Q6 = G8 - G2, Q 8` = 90°, Q7 = G9 - G2, Q8 = G 10 - G2. It should be noted that the description of the angle relationship between Embodiment 6 and Embodiment 1 is only for illustratively corresponding to show the movement situation in Embodiment 6, and the angles in Embodiment 6 are not restricted by the angle relationships in the above two embodiments.

[0367] When the door body 30 is closed, Q0 = 0°. When the first central axis I moves to the second guiding position I2 of the guiding track line S, the second central axis E is located at E2 relative to the door body 30, and the third central axis F is located at F2 relative to the door body 30; that is, the axis triangle IEF is located at the second triangle position I2E2F2 relative to the door body 30.

[0368] When the door body 30 is opened to Q1 = G3 - G2, the first central axis I moves to the third guiding position I3 of the guiding track line S, the second central axis E is located at E3 relative to the door body 30, and the third central axis F is located at F3 relative to the door body 30; that is, the axis triangle IEF is located at the third triangle position I3E3F3 relative to the door body 30.

[0369] When the door body 30 is opened to Q2 = G4 - G2, the first central axis I moves to the fourth guiding position I4 of the guiding track line S, the second central axis E is located at E4 relative to the door body 30, and the third central axis F is located at F4 relative to the door body 30; that is, the axis triangle IEF is located at the fourth triangle position I4E4F4 relative to the door body 30.

[0370] When the door body 30 is opened to Q3 = G5 - G2, when the first central axis I moves to the fifth guiding position I5 of the guiding track line S, the second central axis E is at E5 relative to the door body 30, and the third central axis F is at F5 relative to the door body 30; that is, the axis triangle IEF is at the fifth triangular position I5E5F5 relative to the door body 30.

[0371] When the door body 30 is opened to Q4 = G6 - G2, the first central axis I moves to the sixth guiding position I6 of the guiding track line S, the second central axis E is at E6 relative to the door body 30, and the third central axis F is at F6 relative to the door body 30; that is, the axis triangle IEF is at the sixth triangular position I6E6F6 relative to the door body 30.

[0372] When the door body 30 is opened to Q5 = G7 - G2, the first central axis I moves to the seventh guiding position I7 of the guiding track line S, the second central axis E is at E7 relative to the door body 30, and the third central axis F is at F7 relative to the door body 30; that is, the axis triangle IEF is at the seventh triangular position I7E7F7 relative to the door body 30.

[0373] When the door body 30 is opened to Q6 = G8 - G2, the first central axis I moves to the eighth guiding position I8 of the guiding track line S, the second central axis E is at E8 relative to the door body 30, and the third central axis F is at F8 relative to the door body 30; that is, the axis triangle IEF is at the eighth triangular position I8E8F8 relative to the door body 30.

[0374] When the door body 30 is opened to Q 8` = 90°, the first central axis I moves to the guiding position where I of the guiding track line S is located, the second central axis E is at E relative to the door body 30 8` , and the third central axis F is at F relative to the door body 30 8` ; that is, the axis triangle IEF is at the triangular position defined by I 8` E 8` E 8` F 8` relative to the door body 30.

[0375] When the door body 30 is opened to Q7 = G9 - G2, the first central axis I moves to the ninth guiding position I9 of the guiding track line S, the second central axis E is at E9 relative to the door body 30, and the third central axis F is at F9 relative to the door body 30; that is, the axis triangle IEF is at the ninth triangular position I9E9F9 relative to the door body 30.

[0376] When the door body 30 is opened to Q8 = G 10 - G2, the first central axis I moves to the tenth guiding position I of the guiding track line S 10 , the second central axis E is at E relative to the door body 30 10 , and the third central axis F is at F relative to the door body 30 10That is, the axis triangle IEF is located at the tenth triangle position I relative to the door body 30 10 E 10 F 10 .

[0377] The principle is the same as that in the first embodiment, and will not be repeated here. It can be concluded that in the sixth embodiment, based on the relativity of motion, taking the box body 10 as a reference, the door body 30 has a displacement component parallel to the door rear wall 33 and a displacement component parallel to the door side wall 32 relative to the box body 10. Among them, the displacement component parallel to the door rear wall 33 is recorded as

[0378] The displacement in the first direction 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.

[0379] Hereinafter, the movement trend of the door body 30 will be described in the displacement coordinate system AOB set in the same embodiment.

[0380] (1) Combination Figure 34 , Figures 36 - 39 , in the process of the door body 30 opening from the closed state to 90°, in 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.

[0381] (1.1) Figure 36 In the process of the door body 30 opening from the closed state to Q3, 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 The first direction displacement Pointing to the inner front side of the box 10 (inward and forward side), the second direction displacement It points to the inner rear side of the housing 10 (the inner rear side).

[0382] like Figure 36 As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the closed state to Q3, the first direction displacement of the door body 30 Located in the second quadrant (A<0, B>0), displacement in the second direction Located in the third quadrant (A < 0, B < 0). For the displacement in the first direction and the displacement in the second direction perform displacement decomposition on the A-axis and B-axis respectively; the displacement in the first direction The component displacement on the A-axis is The component displacement on the B-axis is The displacement in the second direction The component displacement on the A-axis is The component displacement on the B-axis is Among them, under the trajectory feature setting of the present invention, there is Then there is, 0, That is, during the process of the door body 30 being opened from the closed state to Q3, in the displacement coordinate system AOB, the door body 30 has a first component displacement and a second component displacement From this, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move in the negative direction of the A-axis and in the positive direction of the B-axis; that is, during the process of the door body 30 being opened from the closed state to Q3, the door body 30 has a tendency to move inward and forward relative to the box body 10.

[0383] (1.2) As Figure 37 , combined with the description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 being opened from Q3 (Q3 < 90°) to Q 8` = 90°: During the process of the door body 30 being opened from Q3 to 90°, taking the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 A second direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31 That is, the first direction displacement Points to the outer rear side (outward and backward side) of the box body 10, and the second direction displacement Points to the outer front side (outward and forward side) of the box body 10.

[0384] As Figure 37 , in the displacement coordinate system AOB, during the process of the door body 30 being opened from Q3 to 90°, the first direction displacement of the door body 30 Is located in the fourth quadrant (A > 0, B < 0), and the second direction displacement Is located in the first quadrant (A > 0, B > 0). For the first direction displacement and the second direction displacement Perform displacement decomposition on the A-axis and B-axis respectively; the first direction displacement The component displacement on the A-axis is The component displacement on the B-axis is The second direction displacement The component displacement on the A-axis is The component displacement on the B-axis is Among them, under the trajectory feature setting of the present invention, there is Then there is That is, when the door body 30 is opened from Q3 to 90°, in the displacement coordinate system AOB, the door body 30 has a first component displacement and a second component displacement From this, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move in the positive direction of the A-axis and in the negative direction of the B-axis; that is, when the door body 30 is opened from Q3 to 90°, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0385] As Figure 38 shown, when the door body 30 is opened to 90°, the door side wall 33 is parallel to the plane where the pick-and-place opening is located and perpendicular to the reference plane M0; at this time, the door rear wall 33 is parallel to the reference plane M0 and perpendicular to the plane where the pick-and-place opening 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 the inside to the outside, and the door rear wall 33 extends from the back to the front.

[0386] When the door body 30 is opened to 90°, taking the box body 10 as a reference, taking the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 a second direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31 That is, the first direction displacement points to the rear side of the box body 10, and the second direction displacement points to the outside of the box body 10.

[0387] As Figure 38 shown, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the first direction displacement of the door body 30 is along the B-axis and points to the negative direction of the B-axis, and the second direction displacement is along the A-axis and points to the positive direction of the A-axis. The first direction displacement and the second direction displacement are respectively decomposed into displacements on the A-axis and the B-axis; the first direction displacement has a component displacement on the A-axis of and a component displacement on the B-axis of The second direction displacement has a component displacement on the A-axis of and a component displacement on the B-axis of Among them, That is, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the door body 30 has a first component displacement and the second displacement component It can be obtained therefrom that: relative to the cabinet 10, the door body 30 has a tendency to move in the positive direction of the A axis and move in the negative direction of the B axis; that is, when the door body 30 is opened at 90°, the door body 30 has a tendency to move outward and backward relative to the cabinet 10.

[0388] (2) As Figure 39 shown, when the door body 30 rotates from 90° to Q8 (Q8 > 90°), during the counterclockwise rotation of the door body 30 relative to the cabinet 10, the door side wall 32 also rotates counterclockwise during the opening process at this stage. In the plane of the top wall of the cabinet 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends outward and backward; along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the door rear wall 33 extends outward and forward.

[0389] During the process of the door body 30 rotating from 90° to Q8, taking the cabinet 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 and a second-direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31 That is, the first-direction displacement points to the inner rear side of the cabinet 10 (inward and backward), and the second-direction displacement points to the outer rear side of the cabinet 10 (outward and backward).

[0390] As Figure 39 shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from 90° to Q8, the first-direction displacement of the door body 30 is located in the third quadrant (A < 0, B < 0), and the second-direction displacement is located in the fourth quadrant (A > 0, B < 0). The first-direction displacement and the second-direction displacement are respectively decomposed into displacements on the A axis and the B axis; the displacement component of the first-direction displacement on the A axis is and the displacement component on the B axis is The displacement component of the second-direction displacement on the A axis is and the displacement component on the B axis is Among them, under the trajectory feature setting of the present invention, there is then there is That is, during the process of the door body 30 from 90° to Q8, in the displacement coordinate system AOB, the door body 30 has a first displacement component and a second displacement component It can be concluded therefrom that: relative to the cabinet 10, the door body 30 has a tendency to move in the positive direction of the A axis and move in the negative direction of the B axis; that is, when the door body 30 is opened from 90° to Q8, the door body 30 has a tendency to move outward and backward relative to the cabinet 10.

[0391] In summary, during the whole process of the door body 30 being opened from the closed state to Q8, relative to the cabinet 10, the movement of the door body 30 is divided into two stages, and the door body 30 has a tendency to move inward first and then move outward.

[0392] Same as Embodiment 1, it should be noted that in this embodiment, only some angles in the range of 0 to 90°, 90°, and some angles in the range of 90° to G max = Q8 are used as representatives to illustrate the overall movement trend, but it can represent the movement trend within the corresponding range, and it can illustrate that the hinge assembly with the above trajectory characteristics of the present invention can enable the door body 30 to have a movement trend of moving inward first and then outward (inward → outward) during the opening process.

[0393] In the sixth embodiment, the door body 30 has a tendency to move inward in the first stage of opening. Specifically, as a settable method, when the door body 30 rotates from the closed state to Q3, while the first hinge shaft 41 moves relative to the guiding groove in a direction away from the door side wall 32 and closer to the door front wall 31, the second hinge shaft 42 moves relative to the guiding groove in a direction closer to the door front wall 31, and the third hinge shaft 43 moves relative to the guiding groove in a direction away from the door front wall 31. The above setting of the door body 30 moving inward during the opening process is applicable to the scenario of the refrigerator being installed in an embedded manner in the cabinet. On the one hand, it can be set in the early stage of the door body 30 being opened, so that the door body 30 moves inward, 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 exceeding the reference plane M0 not to exceed the distance between the cabinet and the side wall of the refrigerator body, effectively avoiding interference between the door body 30 and the cabinet 100 when the door is opened, and further reducing the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of the cabinet 100 space. On the other hand, when the door body 30 of the sixth embodiment moves inward during the process of opening to the maximum angle, it can reduce the limitation of the cabinet on the maximum angle that the door body 30 can open, so that the door body 30 of the refrigerator installed in the cabinet can open to a larger maximum angle.

[0394] As a settable method, when the above door body 30 rotates from the closed state to Q3, the third hinge shaft 43 moves relative to the guiding groove in a direction away from the door front wall 31 and closer to the door side wall 32. As another settable method, the third hinge shaft 43 moves relative to the guiding groove in a direction away from the door front wall 31 and first moves in a direction away from the door side wall 32, and then moves in a direction closer to the door side wall 32.

[0395] As a configurable manner, during the process of the door body 30 rotating from the closed state to Q3, the second hinge shaft 42 cooperates with the first guiding section K1; when the door body 30 is opened to Q3, the second hinge shaft 42 cooperates with the second connection position b. Under this setting, the second hinge shaft 42 moves relative to the guiding groove in the direction close to the front door wall 31 and the door side wall 32.

[0396] In the sixth embodiment, the door body 30 has a tendency to move outwards during the second opening stage; that is, the door body 30 has a tendency to move inwards during the process of continuing to open from Q3. Specifically, as a configurable manner, during the process of the door body 30 opening from Q3 to Q8, while the first hinge shaft 41 moves relative to the guiding groove in the direction away from the door side wall 32 and close to the front door wall 31, the second hinge shaft 42 moves relative to the guiding groove in the direction away from the door side wall 32 and close to the front door wall 31, and the third hinge shaft 43 moves relative to the guiding groove in the direction close to the door side wall 32. As a configurable manner, during the opening process of the second stage, the third hinge shaft 43 first moves relative to the guiding groove in the direction away from the front door wall 31 and then in the direction close to the front door wall 31. In the above settings, Q3 < 90°. That is, during the process of the door body 30 opening to 90°, it has a tendency to move outwards; it can reduce the occlusion of the access opening by the door body 30, facilitating the taking and placing of items, and can also increase the lateral width of the drawer and the space utilization rate of the drawer on the premise of ensuring that the drawer placed in the storage room can be pulled out. Additionally, it can be set that when used in conjunction with the first stage in this embodiment, in the scenario of the built-in installation of the refrigerator in the cabinet, the later outward movement of the door body 30 can compensate for the displacement of the door body 30 moving inwards in the early stage to avoid the cabinet, so as to make full use of the lateral space of the cabinet and reduce the occlusion of the access opening caused by the inward movement of the door body 30 in the early stage.

[0397] It should be noted that the first stage and the second stage in the sixth embodiment can be set independently, without being restricted by the movement of the other stage; it can also be set to first experience the first stage and then the second stage.

[0398] Combined with Figures 78 - 86As shown in the figure, it is assumed that the door body 30 rotates around the first central axis I in the previous state to the position in the adjacent subsequent state (the door body 30 is represented by a dotted line). During this movement process, the rotation axis of the door body 30 is fixed relative to the door body 30. Then, in this movement trend, when the door body 30 is opened, the first side edge W is located at W` relative to the box body 10; the second side edge N is located at N` relative to the box body 10; the side sealing edge H is located at H` relative to the box body 10. Correspondingly, when the door body 30 is opened to the subsequent state according to the trajectory setting in this embodiment (the door body 30 is represented by a solid line), compared with its previous state, the rotation axis of the door body 30 has changed relative to the door body 30. At this time, the first side edge W is located at W relative to the box body 10; the second side edge N is located at N relative to the box body 10; the side sealing edge H is located at H relative to the box body 10. As Figure 78 In the figure, the position where the door body 30 represented by the dotted line is located is the position reached when the door body 30 rotates solely around the first central axis I (I2) relative to the door body 30 when the door body 30 is closed to G1; the position where the door body 30 represented by the solid line is located is the position reached when it is rotated and opened to Q1 in the setting manner of the present invention; Figure 79 In the figure, the position where the door body 30 represented by the dotted line is located is the position reached when the door body 30 is rotated and opened to Q1 in the rotation manner of the present invention, and then rotated solely around the first central axis I (the first central axis I (I3) of the previous state relative to the door body 30) as the central axis to Q2; the position where the door body 30 represented by the solid line is located is the position reached when it is rotated and opened to Q2 in the setting manner of the present invention; similarly Figures 80 - 86 It is a schematic diagram of the position comparison of the above two different opening methods at different opening angles.

[0399] By comparing the setting of the present invention with the method of the door body 30 rotating solely around the first central axis I in its previous state, it can be known that:

[0400] During the process of the door body 30 being opened from the closed state to Q3, in this application, the position W of the first side edge is always located on the side of W` close to the second body side wall and far from the access opening; the position N of the second side edge is always located on the side of N` close to the second body side wall and far from the access opening; the position H of the side sealing edge is always located on the side of H` close to the second body side wall and far from the access opening. That is, during the process of the door body 30 being opened from the closed state to Q3, the door body 30 has a tendency to move inward and forward.

[0401] During the process of the door body 30 being opened from Q3 to Q8, in this application, the position W of the first side edge is always located on the side of W` far from the second body side wall and close to the access opening; the position N of the second side edge is always located on the side of N` far from the second body side wall and close to the access opening; the position H of the side sealing edge is always located on the side of H` far from the second body side wall and close to the access opening. That is, during the process of the door body 30 being opened from Q3 to Q8, the door body 30 has a tendency to move outward and backward.

[0402] The movement trends in the above - mentioned stages are consistent with the foregoing description.

[0403] It should be noted that the comparison between the position of the door body 30 in the current state of the present invention here and the position where the assumed door body 30 rotates solely around the first central axis I from the previous state in the present invention to the opening angle of the door body 30 in the present invention is representative. It can represent the movement trend of the door body 30 relative to the previous state during the opening process of the door body 30 in the present invention. Here, only some selected angles are used for comparison and explanation to present the movement trend when the door body 30 is opened.

[0404] It should be noted that the movement of the first hinge axis 41 relative to the guiding portion 50, and the movements of the second hinge axis 42 and the third hinge axis 43 relative to the guiding portion 60 in the above can make the door body 30 move inwards or outwards in different stages; the length of the above - mentioned guiding track line K is not limited by all the above - mentioned stages; it can be set to have the movement characteristics of at least one of the stages.

[0405] In summary, Embodiments 1 to 6 of the present invention illustrate the solutions of the present invention from multiple perspectives; it should be noted that between the embodiments, the main points described are the differences from the embodiments they mention, and the similarities are not elaborated too much. It should be added that as the settings of the first hinge member and the second hinge member for precisely controlling the rotation and opening of the door body 30 and moving it in a specific direction, to form a structural setting with various track characteristics, it is necessary to achieve the coordinated cooperation of the first hinge member and the second hinge member through refined design, and finally achieve precise control of the complex movement of the door body 30.

[0406] Finally, it should be noted that: the above - mentioned embodiments are only used to illustrate the technical solutions of the present application, not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0407] For the sake of convenience in explanation, the above description has been made in conjunction with specific embodiments. However, the above - mentioned exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are for better explaining the principles and actual applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. Refrigerator, characterized in that, It includes: A box body that defines a storage compartment with an access opening and has a first body side wall and a second body side wall that are oppositely arranged; A door body that is connected to the box body through a hinge assembly to open or close the access opening; the door body has a front wall of the door that is away from the box body when the door body is closed, and a door side wall that is connected to the front wall of the door and is close to the hinge assembly; The hinge assembly includes: A first hinge shaft, a second hinge shaft, and a third hinge shaft, which are fixed to the box body and close to the first body side wall; the second hinge shaft, the first hinge shaft, and the third hinge shaft are sequentially away from the first body side wall; A guiding portion and a guiding part, which are located at the end of the door body and close to the door side wall; the guiding portion defines a linear guiding track line that extends from one end close to the door side wall and the front wall of the door in a direction away from the door side wall and the front wall of the door; the guiding part defines a closed annular guiding track line that surrounds the guiding track line; The guiding track line includes a first guiding segment K1, a second guiding segment K2, a third guiding segment K3, a fourth guiding segment K4, a fifth guiding segment K5, a sixth guiding segment K6, and a seventh guiding segment K7 that are sequentially connected end to end; Among them, the connection point of the seventh guiding segment K7 and the first guiding segment K1 is denoted as the first connection position a; the connection points where the first guiding segment K1, the second guiding segment K2, the third guiding segment K3, the fourth guiding segment K4, the fifth guiding segment K5, the sixth guiding segment K6, and the seventh guiding segment K7 are sequentially connected are sequentially denoted as the second connection position b, the third connection position c, the fourth connection position d, the fifth connection position e, the sixth connection position f, and the seventh connection position g; In the projection on the plane where the front wall of the door is located, the seventh connection position g, the first connection position a, the second connection position b, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are sequentially away from the door side wall; In the projection on the plane where the door side wall is located, the second connection position b, the third connection position c, the fourth connection position d, the first connection position a, the fifth connection position e, the seventh connection position g, and the sixth connection position f are sequentially away from the front wall of the door; During the process of the door body being opened from the second angle G2 to the fifth angle G5, the first hinge shaft moves linearly along the guiding track line towards the direction close to the door side wall and the front wall of the door relative to the guiding portion; the second hinge shaft and the third hinge shaft move relative to the guiding part; the door body opens the access opening and moves inward by a certain distance; where G2 < G5 < 90°.

2. The refrigerator according to claim 1, wherein: In the projection within the plane of the top wall of the box body, on the side of the box body close to the door body, a displacement coordinate system AOB is established; wherein, in the displacement coordinate system AOB, OB is perpendicular to the plane where the access opening is located, and the direction from the access opening to the front wall of the door when the door is closed is positive; OA is parallel to the plane where the access opening is located, and the direction from the second body side wall to the first body side wall is positive; the displacement coordinate system AOB is a coordinate system that is stationary relative to the box body; The door body has a door rear wall disposed opposite to the door front wall; When the door body is opened, the door body has a displacement in a first direction parallel to the rear wall of the door and a displacement in a second direction parallel to the side wall of the door Among them, the displacement in the first direction The component displacement on the A-axis is The component displacement on the B-axis is The displacement in the second direction The component displacement on the A-axis is The component displacement on the B-axis is During the process of the door body being opened from the second angle G2 to the fifth angle G5, the displacement in the first direction is parallel to the rear wall of the door and points to the side away from the door side wall, and the displacement in the second direction is parallel to the door side wall and points to the side away from the front wall of the door; Among them, 3. The refrigerator according to claim 2, characterized in that: During the process of opening the door body from the fifth angle G5 to 90°, the displacement in the first direction is parallel to the rear wall of the door and points to the side wall of the door, and the displacement in the second direction is parallel to the side wall of the door and points to the front wall of the door; Among them, Among them, G5 < 90°.

4. The refrigerator according to claim 3, characterized in that: The door body is opened from 90° to the maximum angle G that the door body can be opened max During this process, the displacement in the first direction is parallel to the rear wall of the door and points to the side wall of the door, and the displacement in the second direction is parallel to the side wall of the door and points to the front wall of the door; Among them, where G5 < 90° < G max .

5. The refrigerator according to any one of claims 1 to 4, characterized in that: The central axis of the first hinge shaft is denoted as the first central axis I, the central axis of the second hinge shaft is denoted as the second central axis E, and the central axis of the third hinge shaft is denoted as the third central axis F; In the projection on the plane of the top wall of the cabinet, the first central axis I, the second central axis E, and the third central axis F form an axis triangle IEF; wherein, the axis triangle IEF is an obtuse triangle, and ∠FIE is an obtuse angle.

6. The refrigerator according to claim 5, characterized in that: In the projection on the plane of the top wall of the cabinet, the longest side EF of the axis triangle IEF is located on the side of the vertex I of the axis triangle IEF away from the access opening.

7. The refrigerator according to claim 1 or 2 or 3 or 4 or 6, characterized in that: The wall surface of the door body disposed opposite to the door front wall intersects with the door side wall to form a second side edge N; The plane where the access opening is located is denoted as the second reference plane M2; the plane of the first body side wall is denoted as the first reference plane M1, and the first reference plane M1 is perpendicular to the second reference plane M2; the first reference plane M1 and the second reference plane M2 remain stationary relative to the cabinet during the opening process of the door body relative to the cabinet; In the projection on the plane of the top wall of the cabinet, during the process of the door body being opened from the closed state, the second side edge N first moves towards the direction close to the first reference plane M1 and the second reference plane M2, and then moves towards the direction close to the first reference plane M1 and away from the second reference plane M2; During the process that the door body is opened to the maximum angle G max the movement locus of the second side edge is an arc.

8. The refrigerator according to claim 7, characterized in that: A door seal is provided on the wall surface of the door body disposed opposite to the door front wall; when the door body is closed, the door seal is in contact with the front end surface of the cabinet surrounding the access opening; the door seal includes a side seal edge H close to the door side wall and away from the door front wall; In the projection on the plane of the top wall of the cabinet, during the process of the door body being opened from the closed state, the side seal edge H first moves towards the direction close to the first reference plane M1 and the second reference plane M2, and then moves towards the direction close to the first reference plane M1 and away from the second reference plane M2; The door body is opened to the maximum angle G max During this process, the movement trajectory of the side sealing edge H is an arc.

9. The refrigerator according to claim 8, characterized in that: In the plane of the top wall of the box body, the center of the circle where the moving trajectory of the circular arc-shaped second side edge is located is denoted as the center O of the second side edge N , the center of the circle where the moving trajectory of the circular arc-shaped side sealing edge is located is denoted as the center O of the side sealing edge H ; Wherein, the radius of the circle where the movement track of the second side edge is located is smaller than the radius of the circle where the movement track of the side seal edge is located; The central axis of the first hinge shaft, the center O of the second side edge N , the center O of the side sealing edge H are successively away from the first body side wall; and the center O of the side sealing edge H , the central axis of the first hinge shaft, the center O of the second side edge N are successively away from the plane where the pick-and-place opening is located.

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