Refrigerator

Abstract

The present invention provides a refrigerator, which includes a box body, a hinge assembly, two door bodies, and a side sealing strip provided on the side of the door body away from the door side wall; the hinge assembly includes a guiding portion and a guiding portion located on the door body, a first hinge shaft, a second hinge shaft, and a third hinge shaft fixed to the box body; the guiding portion is linear; the guiding portion defines a closed annular guiding track line; during the process of the door body being opened from the closed state to G2, the first hinge shaft moves relative to the guiding portion, and the second hinge shaft and the third hinge shaft both move relative to the guiding portion, and the door body moves outwards by a certain distance, and at the same time drives the side sealing strip thereon to separate from the side sealing strip on the other door body; during the process of the door body being continuously opened from the angle G2, the first hinge shaft moves relative to the guiding portion, and the second hinge shaft and the third hinge shaft both move relative to the guiding portion, and the door body moves inwards by a certain distance; the refrigerator of the present invention enables the door body to avoid cold loss and enables the door body not to exceed the side wall of the box body too much when opened.

Description

Technical Field

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

[0002] In the related art, for a refrigerator with two relatively arranged door bodies, the two relatively arranged door bodies of the refrigerator cooperate together to open or close the access opening; in order to ensure the sealing performance when the door bodies are closed, a sealing strip is provided on one side of any one of the two door bodies close to the other; when the two door bodies are closed, the sealing strip on any one of the two door bodies is in sealing cooperation with the sealing strip on the other; that is, when the two door bodies are closed, the two sealing strips are squeezed in the gap between the two door bodies to effectively seal the space between the two door bodies and the box body to prevent cold air from overflowing.

[0003] Currently, the hinge structure of the refrigerator door body is mostly in the form of a single-axis setting, or set as a double-axis to make the door body move inward when opened to meet the requirements of being embedded. Under the above hinge structure settings, when one door body is opened, since the sealing strips on the two door bodies are tightly squeezed in the closed state, the opened door body will drive the other door body to open when opened, resulting in an increase in the opening area of the access opening, an increase in the amount of cold air overflow, and an increase in power consumption. Summary of the Invention

[0004] The present invention solves at least one of the technical problems in the related art to a certain extent.

[0005] Therefore, the present application aims to provide a refrigerator, and the hinge structure of the refrigerator enables the door body to move outward a certain distance first and then move inward a certain distance when opened.

[0006] The refrigerator according to the present application includes:

[0007] 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 relatively arranged;

[0008] Two door bodies that are relatively arranged on the box body; the door body has a front door wall that is away 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 away from the other door body;

[0009] Side sealing strips that are provided on the side of the door body away from the door side wall; when the two door bodies are closed, the side sealing strips on the two door bodies cooperate;

[0010] A hinge assembly that connects the door body and the box body to enable the door body to rotate relative to the box body; the hinge assembly includes:

[0011] The first hinge axis, the second hinge axis, and the third hinge axis are fixed to the box body and close to the first body side wall; the second hinge axis, the first hinge axis, and the third hinge axis are successively away from the first body side wall;

[0012] The guiding part and the guiding portion are located at the end of the door body and close to the door side wall; the guiding part defines a linear guiding track line, and the guiding track line extends from one end close to the door side wall and the front wall of the door to a direction away from the door side wall and the front wall of the door; the guiding portion defines a closed annular guiding track line, and the guiding track line surrounds the guiding track line;

[0013] During the process of the door body being opened from the closed state to the angle G2, the first hinge axis moves linearly along the guiding track line relative to the guiding part in a direction away from the door side wall and the front wall of the door, the second hinge axis and the third hinge axis both move relative to the guiding portion, the door body opens the access opening and moves outward a certain distance, and at the same time drives the side sealing strip thereon to be separated from the side sealing strip on another door body;

[0014] During the process of the door body being continuously opened from the angle G2, the first hinge axis moves linearly along the guiding track line relative to the guiding part in a direction close to the door side wall and the front wall of the door, the second hinge axis and the third hinge axis both move relative to the guiding portion, the door body opens the access opening and moves inward a certain distance.

[0015] In some embodiments of the refrigerator of the present application, within the projection 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 stationary relative to the box body;

[0016] The door body has a door rear wall oppositely arranged with the front wall of the door;

[0017] 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

[0018] Wherein, 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

[0019] During the process of the door body being opened from the closed state to the angle G2, 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] 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

[0021] Wherein,

[0022] In some embodiments of the refrigerator of the present application, 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 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 side away from the front wall of the door;

[0023] Wherein, Wherein, G2 < G5.

[0024] 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 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;

[0025] Wherein, Wherein, G2 < G5 < 90°.

[0026] 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°,

[0027] In some embodiments of the refrigerator of the present application, during the process of the door body being opened from 90° to the maximum angle G max that the door body can be opened, 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;

[0028] Wherein, Wherein, G2 < G5 < 90° < Gmax 。

[0029] 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 the process

[0030] 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;

[0031] In the projection on the plane where the top wall of the box body is located, 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.

[0032] In some embodiments of the refrigerator of the present application, 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 connected end to end in sequence;

[0033] wherein, 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 of 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 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;

[0034] 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 successively away from the side wall of the door;

[0035] In the projection on the plane where the side wall 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 away from the front wall of the door.

[0036] In some embodiments of the refrigerator of the present application, the door body has a door rear wall opposite to the front wall of the door; the door rear wall intersects with the side wall of the door to form a second side edge N;

[0037] The plane where the pick-and-place 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 cabinet during the opening process of the door relative to the cabinet;

[0038] In the projection on the plane of the top wall of the cabinet, during the process of the door 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;

[0039] When the door is opened to the maximum angle G max during the process, the movement trajectory of the second side edge is an arc.

[0040] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0041] The present invention provides a refrigerator, which includes a cabinet, a hinge assembly, two doors, and side sealing strips provided on the side of the door away from the door side wall; the hinge assembly includes a guiding part and a guiding part located on the door, a first hinge shaft, a second hinge shaft, and a third hinge shaft fixed to the cabinet; the guiding part is linear; the guiding part defines a closed annular guiding track line; during the process of the door opening from the closed state to G2, the first hinge shaft moves relative to the guiding part along the movement, and the second hinge shaft and the third hinge shaft both move relative to the guiding part. The door opens the pick-and-place opening and moves outward a certain distance, while driving the side sealing strip thereon to separate from the side sealing strip on the other door; during the process of the door continuing to open from the angle G2, the first hinge shaft moves linearly relative to the guiding part along the guiding track line in a direction close to the door side wall and the front wall of the door, and the second hinge shaft and the third hinge shaft both move relative to the guiding part. The door opens the pick-and-place opening and moves inward a certain distance; the refrigerator of the present invention enables the door to avoid cold loss and enables the door to not exceed the side wall of the cabinet too much when opened. Description of the Drawings

[0042] Figure 1 is a perspective view of the refrigerator according to Embodiment 1 of the present invention;

[0043] 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 is closed;

[0044] Figure 3 is a structural schematic diagram of the first hinge member in Embodiment 1 of the refrigerator of the present invention;

[0045] Figure 4 is another perspective structural schematic diagram of the first hinge member in Embodiment 1 of the refrigerator of the present invention;

[0046] Figure 5 It is a schematic diagram of the relative positions of the door corners when the door of the refrigerator in the first embodiment of the present invention is closed;

[0047] Figure 6 It is a schematic diagram of the relative positions of the door corners when the door of the refrigerator in the first embodiment of the present invention is opened to the maximum angle;

[0048] Figure 7 It is when the door of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0049] Figure 8 It is when the door of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0050] Figure 9 It is when the door of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0051] Figure 10 It is when the door of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0052] Figure 11 It is when the door of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0053] Figure 12 It is when the door of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0054] Figure 13 It is when the door of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0055] Figure 14 It is when the door of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0056] Figure 15 It is when the door of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0057] Figure 16 It is when the door of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0058] Figure 17 It is when the door of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0059] Figure 18 It 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 in the first embodiment of the refrigerator of the present invention;

[0060] Figure 19 It is when the door body of the refrigerator in the first embodiment of the present invention changes from the closed state to G 10 During the opening process, it 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 at different opening angles;

[0061] Figure 20 It is when the door body of the refrigerator in the first embodiment of the present invention changes from the closed state to G2 during the opening process, and it 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 at different opening angles;

[0062] Figure 21 It is when the door body of the refrigerator in the first embodiment of the present invention changes from G2 to G5 during the opening process, and it 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 at different opening angles;

[0063] Figure 22 It is when the door body of the refrigerator in the first embodiment of the present invention changes from G5 to G7 during the opening process, and it 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 at different opening angles;

[0064] Figure 23 It is when the door body of the refrigerator in the first embodiment of the present invention changes from G7 to G 10 During the opening process, it 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 at different opening angles;

[0065] Figure 24 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to and it 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;

[0066] Figure 25 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to and it 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;

[0067] Figure 26 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to and it 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;

[0068] Figure 27 This 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 28 This 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 29 This 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 30 This 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 31 This 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 32 This 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 ;

[0074] Figure 33 This 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 ;

[0075] Figure 34 This 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;

[0076] Figure 35 This 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;

[0077] Figure 36 This 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;

[0078] Figure 37 In the first embodiment of the refrigerator of the present invention, when the opening angle of the door body is greater than G5 and less than G 90 This is a schematic diagram showing the relative positions of the door body and the cabinet body

[0079] Figure 38 In the first embodiment of the refrigerator of the present invention, when the opening angle of the door body is 90°, this is a schematic diagram showing the relative positions of the door body and the cabinet body

[0080] Figure 39 In the first embodiment of the refrigerator of the present invention, when the opening angle of the door body is greater than 90° and less than G 10 This is a schematic diagram showing the relative positions of the door body and the cabinet body

[0081] Figure 40 This 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 around the first central axis I at the time of closing to G1

[0082] Figure 41 This 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 around the first central axis I at the time of being opened to G1 to G2

[0083] Figure 42 This 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 around the first central axis I at the time of being opened to G2 to G3

[0084] Figure 43 This 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 around the first central axis I at the time of being opened to G3 to G4

[0085] Figure 44 This 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 around the first central axis I at the time of being opened to G4 to G5

[0086] Figure 45 This 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 around the first central axis I at the time of being opened to G5 to G2

[0087] Figure 46 This 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 around the first central axis I at the time of being opened to G6 to G2

[0088] Figure 47It is a comparison diagram of the position when the door body of the refrigerator in Embodiment 1 of the present invention is opened to G8 and the position when the door body is opened to the G7 state and rotated to the G3 position with the first central axis I when it is opened to G7 as the rotation axis;

[0089] Figure 48 It is a comparison diagram of the position when the door body of the refrigerator in Embodiment 1 of the present invention is opened to G9 and the position when the door body is opened to the G8 state and rotated to the G4 position with the first central axis I when it is opened to G8 as the rotation axis;

[0090] Figure 49 It is a comparison diagram of the position when the door body of the refrigerator in Embodiment 1 of the present invention is opened to G 10 and the position when the door body is opened to the G9 state and rotated to the G5 position with the first central axis I when it is opened to G9 as the rotation axis;

[0091] Figure 50 It is a top view of the refrigerator in Embodiment 2 of the present invention;

[0092] Figure 51 It is Figure 50 a partial structural schematic diagram of the closed door body relative to the mating part of the two door bodies;

[0093] Figure 52 It is a mating schematic diagram of two side sealing strips in the closed state of the door body of the refrigerator in Embodiment 2 of the present invention;

[0094] Figure 53 It is a relative position schematic diagram of two side sealing strips when the door body of the refrigerator in Embodiment 2 of the present invention starts to open;

[0095] Figure 54 It is a top view of the refrigerator in Embodiment 3 of the present invention relative to the cabinet;

[0096] Figure 55 It is a three-dimensional view of the refrigerator in Embodiment 4 of the present invention;

[0097] Figure 56 It is a relative position schematic diagram of the turning beam and the box body from another perspective when the door body of the refrigerator in Embodiment 4 of the present invention is opened;

[0098] Figure 57 It is a top view of the refrigerator in Embodiment 4 of the present invention;

[0099] Figure 58 It is a relative position schematic diagram of the door body, the guide block and the guide groove when the door body of the refrigerator in Embodiment 4 of the present invention is closed to G S ;

[0100] Figure 59 It is a relative position schematic diagram of the door body, the guide block and the guide groove when the door body of the refrigerator in Embodiment 4 of the present invention is closed to G F ;

[0101] Figure 60 It is a schematic exploded view of the mounting block and the end of the door body in the fourth embodiment of the refrigerator of the present invention;

[0102] Figure 61 It is a schematic structural view of the first engaging portion and the second engaging portion when the door body is in the closed state in the fourth embodiment of the refrigerator of the present invention;

[0103] Figure 62 It is a schematic structural view of the door body of the refrigerator of the present invention when it is closed from the open state to the point where the first engaging portion and the second engaging portion come into contact in the fourth embodiment;

[0104] Figure 63 It is a schematic structural view of the door body of the refrigerator of the present invention when it is closed from the open state to the point where the second engaging portion is elastically deformed to the maximum due to the interaction between the first engaging portion and the second engaging portion in the fourth embodiment;

[0105] Figure 64 It is a top view of the refrigerator relative to the cabinet in the fifth embodiment of the refrigerator of the present invention.

[0106] Figure 65 It is a perspective view of the refrigerator in the sixth embodiment of the refrigerator of the present invention;

[0107] Figure 66 It is a top view of the refrigerator in the sixth embodiment of the refrigerator of the present invention;

[0108] Figure 67 It is when the door body of the refrigerator of the present invention in the second embodiment is opened to a schematic view of the position 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 68 It is when the door body of the refrigerator of the present invention in the second embodiment is opened to a schematic view of the position 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 69 It is when the door body of the refrigerator of the present invention in the second embodiment is opened to a schematic view of the position 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 70 It is when the door body of the refrigerator of the present invention in the second embodiment is opened to a schematic view of the position 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 71 It is when the door body of the refrigerator of the present invention in the second embodiment is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the second and third hinge axes relative to the guiding part when [specific condition];

[0113] Figure 72 This is when the door body of the refrigerator in the second embodiment of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the second and third hinge axes relative to the guiding part when [specific condition];

[0114] Figure 73 This is when the door body of the refrigerator in the second embodiment of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the second and third hinge axes relative to the guiding part when [specific condition];

[0115] Figure 74 This is when the door body of the refrigerator in the second embodiment of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the second and third hinge axes relative to the guiding part when [specific condition];

[0116] Figure 75 This is when the door body of the refrigerator in the second embodiment of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the second and third hinge axes relative to the guiding part when [specific condition];

[0117] Figure 76 This is when the door body of the refrigerator in the second embodiment of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the second and third hinge axes relative to the guiding part when [specific condition];

[0118] Figure 77 This is a schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the second and third hinge axes relative to the guiding part at different angles when the door body of the refrigerator in the second embodiment of the present invention is being opened from the closed state to Q8;

[0119] Figure 78 This is a 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;

[0120] Figure 79 This is a 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;

[0121] Figure 80 This is a 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;

[0122] Figure 81 It 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 Q4 and the position when the door body in the state of being opened to Q3 is rotated to Q4 with the first central axis I when it is opened to Q3 as the rotation axis;

[0123] Figure 82 It 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 Q5 and the position when the door body in the state of being opened to Q4 is rotated to Q5 with the first central axis I when it is opened to Q4 as the rotation axis;

[0124] Figure 83 It 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 in the state of being opened to Q5 is rotated to Q2 with the first central axis I when it is opened to Q5 as the rotation axis;

[0125] Figure 84 It 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 Q 8` and the position when the door body in the state of being opened to Q6 is rotated to Q2 with the first central axis I when it is opened to Q6 as the rotation axis;

[0126] Figure 85 It 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 Q7 and the door body in the state of being opened to Q 8` with the first central axis I when it is opened to Q 8` as the rotation axis and rotated to Q2;

[0127] Figure 86 It 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 Q8 and the position when the door body in the state of being opened to Q7 is rotated to Q2 with the first central axis I when it is opened to Q7 as the rotation axis;

[0128] In the above figures: In the above figures: box body 10; cabinet 100; door body 30; front door wall 31; door side wall 32; door rear wall 33; first side edge W; second side edge N; receiving groove 37; door end cap 38; centroid plane P; door seal strip 5; side seal edge H; hinge plate 40; connecting portion 401; extending portion 402; stopping portion 403; hanging gap 404; first extension plate 4021; second extension plate 4022; first hinge shaft 41; second hinge shaft 42; third hinge shaft 43; first central axis I; second central axis E; third central axis F; guiding portion 50; guiding track line S; first guiding position I1; second guiding position I2; third guiding position I3; fourth guiding position I4; fifth guiding position I5; sixth guiding position I6; guiding portion 60; guiding track line K; first guiding section K1; second guiding section K2; third guiding section K3; fourth guiding section K4; fifth guiding section K5; sixth guiding section K6; seventh guiding section K7; first connecting position a; second connecting position b; third connecting position c; fourth connecting position d; fifth connecting position e; sixth connecting position f; seventh connecting position g; side seal strip 3; plate body 81; locking hook 82; root connecting portion 83; hanging portion 84; door corner portion 7; top plate 71; side plate 72; receiving space 70; turning beam 9; guiding block 90; guiding rail 91. Detailed implementation manners

[0129] Next, the present invention will be specifically described through exemplary implementation manners. However, it should be understood that, without further description, the elements, structures, and features in one implementation manner can also be beneficially combined into other implementation manners.

[0130] 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 thus cannot be understood as a limitation to the present invention.

[0131] The terms "first", "second", "third", "fourth", "fifth" are only used for descriptive purposes and cannot be understood 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.

[0132] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0133] Hereinafter, 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.

[0134] Embodiment 1

[0135] Refer to Figure 1 , the refrigerator includes a cabinet 10 having a storage compartment, a door body 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.

[0136] 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.

[0137] A pick-up and put-down 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 cabinet 10 to open or close the pick-up and put-down opening of the storage compartment. Specifically, the door body 30 is rotatably connected to the cabinet 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-up and put-down opening.

[0138] Specifically, in this embodiment, the cabinet 10 includes a first body side wall and a second body side wall arranged oppositely (i.e., the left side wall and the right side wall of the cabinet 10); wherein, the door body 30 has a front door wall 31 away from the cabinet 10 when the door body 30 is closed, a door rear wall 33 opposite to the front door wall 31, and a door side wall 32 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 that the normal direction of the first body side wall is the transverse direction.

[0139] Among them, the front wall 31 and the side wall 32 of the door body 30 intersect to form a first side edge W, and the side wall 32 and the rear wall 33 of the door intersect to form a second side edge N. When the door body 30 is closed, the first side edge W is located on the side of the second side edge N away from the box body 10. It should be noted that the intersection line of the front wall 31 and the side wall 32 is the theoretical first side edge W (similarly, the theoretical second side edge N is the intersection line of the side wall 32 and the rear wall 33); in actual production and processing settings, the intersection of the front wall 31 and the side wall 32 is provided with a rounded transition, so a curved surface is formed at the intersection of the front wall 31 and the side wall 32; on the curved surface at the intersection of the front wall 31 and the side wall 32, any straight line extending along the height direction of the door body 30 can represent the first side edge W (similarly applicable 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, the plane passing through the centroid of the door body 30 and parallel to the front 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.

[0140] 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 access opening to effectively seal the connection between the door body 30 and the box body 10, thereby ensuring that the door body 30 seals the access opening and preventing cold air from leaking out. Optionally, the door seal 5 is annular; the door seal 5 includes a side seal near the side wall 32 of the door, and the edge of the door seal 5 (side seal) near the side wall 32 and away from the front wall 31 is denoted as the side seal edge H.

[0141] The hinge assembly includes a first hinge member and a second hinge member, and the first hinge member and the second hinge member cooperate with each other and can rotate relative to each other. The first hinge member is provided on the box body 10 and close to the first body side wall, and the second hinge member is provided at the end of the door body 30 close to the first hinge member. The first hinge member and the second hinge member cooperate to allow the box body 10 and the door body 30 to rotate relative to each other. Among them, the second hinge member is close to the side wall 32 of the door body 30; for example, when the first hinge member is located on the right side of the box body 10, the right side surface of the door body 30 is the side wall 32 when the door body 30 is closed; when the first hinge member is located on the left side of the box body 10, the left side wall of the door body 30 is the side wall 32 when the door body 30 is closed.

[0142] Refer 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 being 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.

[0143] The second hinge member includes: a guiding portion 50 and a guiding part 60 located at the end of the door body 30 close to 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 to open or close, 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.

[0144] 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.

[0145] In this embodiment, taking the example that the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are provided on the extending portions 402 at both the upper and lower ends of the door body 30, and the guiding portion 50 and the guiding part 60 are provided at both the upper and lower ends of the door body 30 for description. It should be noted that the setting of this embodiment is not limited to being provided at both the upper and lower ends of the door body 30 at the same time, and it is set as needed to connect the door body 30 and the cabinet 10.

[0146] In this embodiment, as Figures 2 - 6 shown, the plane where the side surface (the first body side wall) of the cabinet 10 close to the hinge plate 40 is defined as the reference plane M0, and the side of the reference plane M0 away from the storage chamber interior is denoted as the outside; in contrast, the side of the reference plane M0 close to the storage chamber interior is denoted as the inside. As Figure 2As shown, in some embodiments of the present application, in the projection on the plane of the top wall of the box body 10, the straight line where the central axis of the first hinge shaft 41 and the central axis of the second hinge shaft 42 are located is perpendicular to the side wall of the first body; that is, in the projection on the plane of the top wall of the box body 10, the straight line where the central axis of the first hinge shaft 41 and the central axis of 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 machining accuracy, thereby ensuring the assembly accuracy and increasing the smoothness of the rotation and opening of the door body 30.

[0147] In this embodiment, the trajectory line along which the guiding part 50 guides the relative movement of the central axis of the first hinge shaft 41 is denoted as the guiding trajectory line S, and the trajectory line along which the guiding part 60 guides the relative movement of 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; 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.

[0148] In some embodiments of the present application, the guiding trajectory line S extends linearly from the end close to the door side wall 32 and the front wall 31 of the door to the direction away from the door side wall 32 and the front wall. Among them, the included angle between the guiding trajectory line S and the front wall 31 of the door 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 of 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 of θ with the front wall 31 of the door, 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 front wall 31 of the door.

[0149] In some embodiments of the present application, the guiding trajectory line K surrounds the guiding trajectory line S. In the projection on the plane of the top wall of the box body 10, the guiding trajectory line K surrounds the first hinge shaft 41, the second hinge shaft 42 and the third hinge shaft 43.

[0150] As a configurable way, the guiding part 50 is set as a guiding groove, and the guiding part 60 is set as a guiding groove. The central locus line of the guiding groove is the guiding locus line S. The groove wall of the guiding groove is annular to define an annular guiding locus 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 shaft 41, the second hinge shaft 42 and the third hinge shaft 43. During the opening process of the door body 30, the first hinge shaft 41 moves linearly relative to the guiding groove, and the second hinge shaft 42 and the third hinge shaft 43 both move relative to the guiding groove, so that the door body 30 has a certain displacement in the transverse direction during the opening process.

[0151] In the present invention, the guiding part 60 defines a closed annular guiding locus line. Optionally, the guiding groove is an annular closed groove. The above annular guiding part 60 has high strength, good machinability and good machining precision; in addition, the annular setting form makes the guiding part 60 have excellent detectability to ensure precision; furthermore, the annular guiding part 60 has good deformation resistance ability to effectively ensure its precision. Combined with the linear guiding part 50, the first hinge shaft 41 fixed to the box body 10 cooperates with the linear guiding part 50, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guiding part 60, which can accurately control the movement of the door body 30, so that the door body 33 has a certain displacement 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.

[0152] In some embodiments of the present application, corresponding to the setting that the guiding locus line S is 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 part 50, is convenient for detection and adjustment to ensure precision, so as to improve the accuracy of the movement control of the door body 30.

[0153] 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 towards the inner cavity side of the door body 30 to form a mounting table, and the second hinge member (the guiding part 50 and the guiding part 60) is arranged on the mounting table.

[0154] As a configurable way, 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 first side and the second side are connected to define 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, so that the door body 30 can be opened to a larger angle.

[0155] As another settable way, 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 a 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, the interference between the door body 30 (the side plate 72 of the door corner portion 7 or the area of the front door wall 31 close to the first side edge W) and the extension portion 402 is avoided, effectively ensuring that the door body 30 can be opened to a larger angle.

[0156] In some embodiments of the present application, when the door body 30 is closed, the guiding portion 50 is close to the front door 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, and thus ensure 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 door wall 31 when 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 deformation and displacement of the door body 30.

[0157] As a configurable manner, 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 closer to the front door wall 31.

[0158] As a configurable manner, 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 manner, 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.

[0159] 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.

[0160] As a configurable manner, 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.

[0161] Among them, the second connection position b is located on the side of the first connection position a closer to the door side wall 32 and the front door wall 31;

[0162] The third connection position c is located on the side of the second connection position b away from the front door 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 closer to the front door wall 31;

[0163] The fourth connection position d is located on the side of the third connection position c closer to the door rear wall 33 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 closer to the front door wall 31.

[0164] The fifth connection position e is located on the side of the fourth connection position d close to the rear door wall 33 and the side door wall 32; in this embodiment, the fifth connection position e is located on the side of the first connection position a close to the rear door wall 33 and away from the side door wall 32, and the fifth connection position e is located on the side of the third connection position c away from the side door wall 32.

[0165] The sixth connection position f is located on the side of the fifth connection position e close to the rear door wall 33 and the side door wall 32. In this embodiment, the sixth connection position f is located on the side of the second connection position b away from the side door wall 33. 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 door wall 32.

[0166] The seventh connection position g is located on the side of the sixth connection position f close to the front door wall 31 and the side door wall 32. In this embodiment, the seventh connection position g is located on the side of the first connection position a close to the side door wall 32 and the rear door wall 33.

[0167] That is, in the projection on the plane where the front door wall 31 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 away from the side door wall 32.

[0168] In the projection on the plane where the side door wall 32 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 away from the front door wall 31. As an optional setting method, in the projection on the plane where the side door wall 32 is located, relative to the first connection position a, the fifth connection position e is closer to the seventh connection position g.

[0169] As an optional setting method, in the projection on the plane where the side door wall 32 is located, the fifth connection position e and the seventh connection position g are adjacent in position, and the fourth connection position d and the first connection position a are adjacent in position. Optionally, in the projection on the plane where the side door wall 32 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.

[0170] As an optional setting method, in the projection on the plane where the side door wall 32 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 from 4 to 6; a`g`:f`a` belongs to any value from 0.5 to 0.7; d`c`:c`b` belongs to any value from 1.8 to 2.2.

[0171] 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 in the range of 0.6 to 0.7; a''b'':b''d'' belongs to any value in the range of 0.3 to 0.4; a''b'':b''c'' belongs to any value in the range of 1 to 1.2; e''d'':c''d'' belongs to any value in the range of 0.2 to 0.3; a''g'':a''b'' belongs to any value in the range of 0.4 to 0.6.

[0172] The relative position settings of the respective connecting positions in the above 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 axis 42 and the third hinge axis 43 relative to the guiding track line K is smoother.

[0173] 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.

[0174] 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;

[0175] 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, for every unit increase in the distance between the second guiding section K2 and the front door wall 32, the increase amount of the distance between the second guiding section K2 and the door side wall 32 is denoted as ζ1; for every unit increase in the distance between the third guiding section K3 and the front door wall 32, 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.

[0176] 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 side wall 32 and the front door wall 31, and then extends in a direction approaching the door side wall 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 side wall 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 side wall 32.

[0177] 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 side wall 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.

[0178] 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 side wall 32 and the front door wall 31;

[0179] 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 side wall 32 and approaching the front door wall 31, and the seventh guiding section K7 bulges in a direction away from the guiding centroid O.

[0180] 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 side wall 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 side wall 32.

[0181] The part where the fourth guiding section K4 extends in a direction away from the door side wall 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 side wall 32 and away from the front door wall 31 is denoted as the second segment (d1e).

[0182] 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 side wall 32 is denoted as λ1, and the rate of decrease in the distance between the fifth guiding section K5 and the door side wall 32 is denoted as λ2; among them, λ1 < λ2. That is, relative to the door side wall 32, the change trend of the fourth guiding section K4 is gentler than that of the fifth guiding section K5.

[0183] Among them, along the direction from the front door wall 31 to the rear door wall 33, the rate of increase in the distance between the first segment of the fourth guiding segment K4 and the door side wall 32 is denoted as λ3, and the rate of increase in the distance between the third guiding segment K3 and the door side wall 32 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 track 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 track line K is close to the front door wall 31 and far from the door side wall 31 in the area near the fourth connection position d.

[0184] 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 of decrease in the distance between the fh segment of the sixth guiding segment K6 and the door side wall 32 is denoted as λ5, and the rate of decrease in the distance between the hg segment of the sixth guiding segment K6 and the door side wall 32 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 and the door side wall 32. Among them, the inflection point h is the changing point of the rate of increase in the distance between the guiding track line K and the door side wall 32. The guiding track line K rapidly approaches the door side wall 32 along the sixth guiding segment K6 from the sixth connection position f to the inflection point h, and starts to extend rapidly towards 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 track line K is far from the front door wall 31 and the door side wall 31 in the area near the inflection point h.

[0185] As an implementable method, 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 track line S.

[0186] As a settable method, 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 far 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 track line K can exert a resistance on 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 being over-closed due to excessive force and then rebounding and opening; and enable the door body 30 to stably stay in the closed state, increasing the stability of the door body 30 in the closed state.

[0187] 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 guide groove; when the door body 30 continues to move in the closing direction after closing to an opening angle of 0°, the distance between the guiding trace 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.

[0188] In some embodiments of the present application, the guiding trace 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 。

[0189] In some embodiments of the present application, the fifth guiding position I5 is the end point position of the guiding trace line S close to the door side wall 32, and the tenth guiding position I 10 is the end point position of the guiding trace 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 successively 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 successively 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 successively 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.

[0190] 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.

[0191] During the opening process of the door body 30, the first hinge shaft 41 moves relative to the guide groove, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guide groove and move relative to the guide groove.

[0192] 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.

[0193] As a configurable way, the shaft triangle IEF is an obtuse triangle; ∠FIE belongs to any value between 172° and 178°; ∠IEF belongs to any value between 3.5° and 4°; that is, the shaft triangle IEF is an obtuse triangle with one angle close to 180°. The relative positions of the above first hinge shaft 41, second hinge shaft 42, and third hinge shaft 43 form the position setting of an obtuse triangle, so that both the second hinge shaft 42 and the third hinge shaft 43 are engaged with the guide groove, and the first hinge shaft 41 is engaged with the guiding groove, increasing the assembly dimension of the first hinge shaft 41, second hinge shaft 42, and third hinge shaft 43 for the door body 30 (guide groove). The shaft triangle IEF formed by the first hinge member is in surface engagement with the surface formed by the guide groove of the second hinge member; that is, the engagement dimension of the surface engagement between the first hinge member and the second hinge member effectively improves the engagement stability between the first hinge member and the second hinge member. In addition, the second hinge shaft 42 and the third hinge shaft 43 are respectively located on opposite sides of the first hinge shaft 41 and are engaged with the guide groove, increasing the stability.

[0194] As a configurable way, the longest side EF of the obtuse triangular shaft triangle IEF is located on the side of the vertex I of the shaft triangle IEF away from the access opening. The above setting enables the second hinge shaft 42 and the third hinge shaft 43 with a larger distance to be engaged 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 shafts for the door body 30. At the same time, the dimension of the shaft triangle IEF in the direction perpendicular to the access opening is reduced, which can meet the requirement of arranging the first hinge shaft 41, second hinge shaft 42, and third hinge shaft 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. In addition, 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.

[0195] In this embodiment, the guide groove and the guiding groove are arranged on the door body 30, and the first hinge shaft 41, second hinge shaft 42, and third hinge shaft 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 shaft 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 shaft 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.

[0196] When the door body 30 is opened, there is a relative movement relationship between the first hinge shaft 41 and the guiding groove, and between the second hinge shaft 42 or the third hinge shaft 43 and the guiding groove; in this embodiment, for the convenience of description, the door body 30 (guiding groove or guiding channel) is used as the static reference object, and the first hinge shaft 41 moves relative to the guiding groove, and the second hinge shaft 42 or the third hinge shaft 43 moves relative to the guiding groove to illustrate the specific process of opening the door body 30.

[0197] As Figures 7 - 33 shown, the movement of the shaft triangle IEF relative to the guiding groove / guiding channel is equivalent to the movement of the box body 10 (hinge plate 40) relative to the door body 30.

[0198] Among them, the movement of the first hinge shaft 41 relative to the guiding groove is equivalent to the movement of the first central axis I relative to the guiding track line S; the movement of the second hinge shaft 42 or the third hinge shaft 43 relative to the guiding groove is equivalent to the movement of the second hinge shaft 42 or the third hinge shaft 43 relative to the guiding track line K.

[0199] 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 .

[0200] When the door body 30 is opened from the closed state to the maximum angle G max (= G 10 ), during the process of the door body 30 rotating and opening to a specific angle, the relative positions of the first hinge shaft 41 relative to the guiding groove and the relative positions of the second hinge shaft 42 and the third hinge shaft 43 relative to the guiding groove are as follows:

[0201] Among them, represents the opening angle of the door body 30, and the opening angle when the door body 30 is in the closed state

[0202] As Figure 7 shown, when, the door body 30 is in the closed state; the first central axis I is located at the starting guiding position I0 of the guiding track line S. That is, when the door body 30 is closed, the first hinge shaft 41 is located in the area of the guiding groove close to the door side wall 32. The second hinge shaft 42 cooperates with the seventh guiding section K7 of the guiding track line K, and the third hinge shaft 43 cooperates with the fourth connecting position d of the guiding track line K. At this time ( 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.

[0203] As Figure 8 shown, when the door body 30 rotates from the closed state to G2 during the opening process; 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.

[0204] 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 to other states.

[0205] 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 ( time), 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.

[0206] As Figure 9 , Figure 25 shown, when the door body 30 is rotated and opened 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 ( time), 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, in the process of the above-mentioned door body 30 being 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 movement 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 change 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.

[0207] As Figure 10 , Figure 26 shown, 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 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] 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 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 When, the centroid plane P is not between the hinge axes. When 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 and 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.

[0209] 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 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.

[0210] As Figure 12 , Figure 28 shown, When the opening angle 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 opening angle is G5), 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.

[0211] 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 in a direction away from the door side wall 32 and the front door wall 31; 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 a 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 a 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 in a direction away from the door side wall 32 and the front door wall 31, 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 continuing to approach the door side wall 32 and away from the front door wall 31.

[0212] 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 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 first guiding section K1 of the guiding track line K is different, and the position of the third hinge axis 43 relative to the fifth guiding section K5 of the guiding track line K is 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 other states when the door body 30 is opened to other states.

[0213] 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 located on the side of the fifth guiding position I5 away from 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 guiding section K5. At this time ( When the opening angle of the door body 30 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 triangle position I6E6F6 relative to the door body 30. The centroid plane P passes through the sixth triangle 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.

[0214] 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 of the door body 30 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 triangle position I7E7F7 relative to the door body 30. During the process of the door body 30 rotating from G6 to G8, the centroid plane P always passes through the seventh triangle 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.

[0215] As Figure 15 、 Figure 31 shown, When the opening angle of the door body 30 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 is G6, 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 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 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.

[0216] 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 door wall 31. 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 door wall 31. 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 door wall 31.

[0217] 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.

[0218] 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.

[0219] 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.

[0220] 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 of 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 be opened from 90°, the extending 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.

[0221] As a settable manner, when the door body 30 is opened to 90°, the second hinge shaft 42 cooperates with the second connection position b.

[0222] 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 of the eighth guiding position I8 away from the door side wall 32 and the front door wall 31; 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.

[0223] 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 , and 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.

[0224] 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.

[0225] 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 configurable manner, 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 configurable manner, along the direction from the rear door wall 33 to the front door wall 31, the rate at which the distance between the fh section of the sixth guiding section K6 and the door side wall 32 decreases is greater than the rate at which the distance between the hg section of the sixth guiding section K6 and the door side wall 32 decreases, 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.

[0226] 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 configurable manner, 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.

[0227] In this embodiment, along the direction approaching the seventh connection position g from the sixth connection position f, the sixth guiding section K6 extends in the direction 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 When the time comes, 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 a configurable method, at this time, the third hinge shaft 43 is in interference fit with the inflection point h of the guiding groove.

[0228] Assume that the door body 30 is opened from G 10 continuously. The third hinge shaft 43 has a tendency to move in the direction 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 approaching the fourth connection position d relative to the third guiding section K3. In this embodiment, along the direction approaching the seventh connection position g from the sixth connection position f, the sixth guiding section K6 extends in the direction 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 when the first hinge shaft 41 moves along the guiding groove and the third hinge shaft 43 is matched 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.

[0229] As a configurable method, when the door body 30 is opened to G 10 When the time comes, the third hinge shaft 43 is in interference fit with the sixth guiding section K6. Additionally, it can be set that 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 it is opened to the maximum.

[0230] In some embodiments of the present application, when the door body 30 is opened to G 10When the third hinge shaft 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 one end of the third hinge shaft 43. When the three hinge shafts rotate simply with the central axis of the first hinge shaft 41 as the rotation axis, the distance between the third hinge shaft 43 and the door side wall 32 decreases, and the rate of decrease in the distance between the third hinge shaft 43 and the door side wall 32 is greater than the rate of decrease in 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 relative to the hinge axis in a direction away from the first hinge shaft 41.

[0231] Combined with the above settings of the door body 30 being opened to various angles, 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 shaft 42 and the third hinge shaft 43 are always in contact and cooperation with the inner wall of the guiding groove.

[0232] 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 at its current state.

[0233] 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 . Optionally, G8 = 90°.

[0234] 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 shaft 41, the second hinge shaft 42, and the third hinge shaft 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 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. 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 shafts; while when the opening angle of the door body 30 is greater than G`1, 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.

[0235] 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.

[0236] 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 front door wall 31, then in a direction close to the door side wall 32 and the front door wall 31, and then in a direction away from the door side wall 32 and the front door wall 31; the second hinge axis 42 and the third hinge axis 43 move clockwise relative to the guiding groove throughout the process.

[0237] 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 front door 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;

[0238] 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 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;

[0239] 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 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.

[0240] 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:

[0241] In the first stage, combined with Figures 7 - 9 , as Figures 19 - 20 shown, the process of the door body 30 rotating from the closed state to G2 is opened.

[0242] In this first stage, the door body 30 is opened 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 door front 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 is opened to G2, the first hinge shaft 41 moves to the second guiding position I2 of the guiding track line S.

[0243] In the above opening process of the first stage, the door body 30 (guide groove / guide channel) is used as a reference object for description.

[0244] When the door body 30 is opened from 0° to G2, the shaft triangle IEF rotates clockwise from the position of I0E0F0 and moves successively to the side close to the door side wall 32 and the door front wall 31 to 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 a reference object, the box body 10 rotates clockwise relative to the door body 30 and moves a certain distance in a direction away from the door side wall 32 and the door front wall 31.

[0245] In summary, during the process of the door body 30 being opened from the closed state to G2, taking the door body 30 (guide groove / guide channel) as a 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 door front wall 31 relative to the door body 30. According to the relativity of motion, taking the box body 10 as a reference object, during the process of the door body 30 being opened 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 and a displacement parallel to the door side wall 33 and pointing to the door front wall 31 relative to the box body 10.

[0246] In the second stage, combined with Figures 9 - 12 , refer to Figure 19 , Figure 21 shown, the process of the door body 30 rotating from G2 to G5 is opened.

[0247] In this second stage, the door body 30 is opened from G2 to G5 successively passing 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.

[0248] 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.

[0249] 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 opens 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.

[0250] In the third stage, combined with Figures 12 - 17 , as shown in Figure 19 and Figures 22 - 23 , during the process of the door body 30 being rotated and opened from G5 to G max = G 10 .

[0251] In this third stage, the door body 30 is opened from G5 to G 10 successively passing through G6, G7, G8, and G9. 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.

[0252] During the opening process of the third stage above, the door body 30 (guide groove / guide channel) is used as a reference object for description.

[0253] 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 At the position (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 concluded that: taking the door body 30 (guide groove / guide channel) as a reference object, the box body 10 rotates 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.

[0254] In summary, 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 object, the box body 10 relative to the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the side away from the door front wall 31. According to the relativity of motion, taking the box body 10 as a reference object, during the process of the door body 30 being opened from G5 to G 10 the door body 30 relative to the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the side of the door front wall 31.

[0255] 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 object, the door body 30 relative to the box body 10 has a displacement component parallel to the door rear wall 33 and a displacement component parallel to the door side wall 32. Among them, the displacement component parallel to the door rear wall 33 is recorded as the first-direction displacement The displacement component parallel to the door side wall 32 is the second-direction displacement During different opening stages of the door body 30, the first-direction displacement and the second-direction displacement will have different directions.

[0256] In the above first stage and third stage, the first-direction displacement points to the side of the door side wall 32, and the second-direction displacement points to the side of the door front wall 31. While in the second

[0257] During this stage, the first-direction displacement points away from one side of the door sidewall 32, and the second-direction displacement points away from one side of the front wall 31 of the door.

[0258] It should be supplemented here that "pointing to the door sidewall 32" means the direction from the opposite end of the door body 30 to the door sidewall 32 on the door sidewall 32;

[0259] "Pointing away from the door sidewall 32" means the direction from the door sidewall 32 to the opposite end of the door body 30 on the door sidewall 32;

[0260] "Pointing to one side of the front wall 31 of the door" means the direction from the rear wall 33 of the door to one side of the front wall 31 of the door;

[0261] "Pointing away from one side of the front wall 31 of the door" means 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 and the second-direction displacement are both instantaneous relative displacements to illustrate the current movement direction of the door body 30 relative to the box body 10.

[0262] 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 on the side of O far from the pick-and-place opening (front side); OA is parallel to the plane where the pick-and-place opening is located, and A is on the side of O far from the second body sidewall (outer side). 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.

[0263] (1) As Figures 34 - 38 shown, during the process of the door body 30 being opened 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 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 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.

[0264] During the above opening process (from the closed state to 90°), the door sidewall 32 starts to rotate counterclockwise from a state parallel to the reference plane M0. The angle between the door sidewall 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 sidewall 32 extends towards the side away from the second body sidewall 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 sidewall 32 to the opposite end of the door body 30 with respect to the door sidewall 32, the door rear wall 33 extends towards the side away from the first body sidewall and the pick-and-place opening.

[0265] (1.1) It can be seen from 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°): 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 sidewall 32. A second-direction displacement parallel to the door sidewall 32 and pointing towards 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.

[0266] As Figures 34 - 35 Shown, 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). For the first-direction displacement And the second-direction displacement Respectively

[0267] Perform displacement decomposition on the A-axis and 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

[0268] 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, That is, when the door body 30 is opened from the closed state to G2, in the displacement coordinate system AOB, the door body 30 has a first displacement and the second displacement It can be concluded that: relative to the box body 10, the door body 30 has a tendency to move positively along the A axis and positively toward 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.

[0269] (1.2) In combination with the above description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 opening from G2 to G5 (G2<G5<90°), it can be seen that: during the process of the door body 30 opening from G2 to G5, with the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing to the side 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).

[0270] like Figure 34 and Figure 36 As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from G2 to G5, 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). Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis and the B axis respectively; displacement in the first direction The displacement on the A axis is The displacement on the B axis is Second direction displacement The displacement on the A axis is The displacement on the B axis is Among them, the trajectory feature setting of the present invention has Then there is, That is, during the process of the door body 30 opening from G2 to G5, in the displacement coordinate system AOB, the door body 30 has a first displacement and the second displacement It can be concluded that: relative to the box body 10, the door body 30 has a tendency to move in the negative direction along the A axis and move in the positive direction toward the B axis; that is, in the process of the door body 30 opening from G2 to G5, the door body 30 has a tendency to move inward and forward relative to the box body 10.

[0271] (1.3) In combination 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°, with the box body 10 as the reference object, 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.

[0272] 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 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, 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.

[0273] 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.

[0274] 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 can be concluded that when the door body 30 is opened to 90°, with the box body 10 as the reference object, 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.

[0275] 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. 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, 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 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 box body 10.

[0276] (3) As Figures 9 - 12 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.

[0277] During the above opening process, the door side wall 32 starts to rotate counterclockwise from a state perpendicular to the reference plane M0, and the angle between the door side wall 32 and the plane where the pick-and-place opening is located gradually increases while the angle between it and the reference plane M0 gradually decreases; that is, when the door body 30 rotates from 90° to G 10 During the process, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends towards the side away from the second body side wall and closer 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 while the angle between it and the reference plane M0 gradually increases; that is, when the door body 30 rotates from 90° 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 towards the direction away from the second body side wall and the pick-and-place opening.

[0278] When the door body 30 rotates from 90° 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 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 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).

[0279] 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 third quadrant (A < 0, B < 0), and the second-direction displacement Is located in the fourth quadrant (A > 0, B < 0). Decompose the first-direction displacement And the second-direction displacement 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 component displacement of the second-direction 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, That is, when the door body 30 rotates from 90° to G 10 During the process, in the displacement coordinate system AOB, the door body 30 has a first component displacement and the second partial displacement Therefore, 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, when the door body 30 is opened from G5 to 90°, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0280] In summary, when the door body 30 is opened from the closed state to G 10 (G 10 > 90°), during the whole process, relative to the box body 10, the movement of the door body 30 is divided into three stages, and the door body 30 first moves outward, then moves inward, and then has a tendency to move outward.

[0281] 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 enable the door body 30 to have a movement trend of outward → inward → outward during the opening process.

[0282] 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 guiding 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 guiding 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 guiding 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 guiding groove. In addition, in this embodiment, during the process of the door body 30 being opened 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.

[0283] 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 of the embedded installation of the refrigerator in the cabinet. When the door body 30 opens and moves inward, it 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 the interference between the door body 30 and the cabinet 100 when the door body 30 opens, and further reduce the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, improving the utilization rate of the cabinet 100 space.

[0284] In this embodiment, the second stage is set on the premise of the outward movement of the door body 30 in the above first stage, which can take into account the different requirements of the two stages at the same time and increase the flexible applicability of the refrigerator.

[0285] It should be noted that in some embodiments of the present application, the setting of the above second stage can be set independently, and it is not limited 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 above first stage; the setting of the door body 30 opening from the closed state to G2 in cooperation with the above second stage setting can be different from the setting of the above first stage. For example, it can be set that during the process of the door body 30 opening 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 opening 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 limited by the form of the second stage setting.

[0286] 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 opens from G5 to G 10During the process, the first hinge shaft 41 moves a certain distance relative to the guiding groove away from the door side wall 32 and the front door wall 31, so that the door body 30 moves outward a certain distance. While the first hinge shaft 41 moves relative to the guiding groove away from the door side wall 32 and the front door wall 31, the second hinge shaft 42 moves relative to the guiding groove first in a direction away from the door side wall 32 and close to the front door wall 31, and then in a direction away from the door side wall 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 side wall 32 and away from the front door wall 31, and then in a direction close to the door side wall 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 door body 30 on the access opening, facilitating the access 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 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.

[0287] It should be noted that in some embodiments of the present application, the above settings in 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 above 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 above 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 above first stage setting; 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 above second stage setting.

[0288] 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 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 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 [the figure], the position of 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 and reaches G1; the position of 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 [the figure], the position of the door body 30 indicated by the dashed line is the position reached when, after the door body 30 is rotated and opened to G1 in the rotation manner of the present invention, the door body 30 rotates solely around the first central axis I (the first central axis I (I1) of the door body 30 in the previous state when the door body 30 is opened to G1) as the central axis and reaches G2; the position of 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.

[0289] 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:

[0290] 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 outward and forward.

[0291] 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 inward and forward.

[0292] 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 outward and backward.

[0293] The movement trends in the above stages are consistent with the movement trends in the analysis of the previous stages.

[0294] 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 and illustrate the movement trend when the door body 30 is opened.

[0295] 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.

[0296] 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 a 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 where the second body side wall is located; 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.

[0297] 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.

[0298] 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.

[0299] As a settable method, 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 moving horizontally (inward or outward).

[0300] During the opening process of the door body 30, the side sealing edge H moves along with the opening of the door body 30, and its movement trajectory is recorded as the side sealing edge trajectory line. In the projection on the 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 on the access opening.

[0301] As a settable way, 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 moving horizontally (inward or outward).

[0302] 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 reasons such as machining errors, micro-deformation of components, micro-wear, reserved gaps, or their own manifestations, but still have arc characteristics (such as fluctuating slightly around the arc).

[0303] 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 way, 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.

[0304] In some embodiments of the present application, in 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 , and 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 away from the access opening and close to the first body side wall of the side sealing edge center O H , and the second side edge center O N is located on the side away from the first body side wall and the access opening of the first central axis I; the first central axis I is located on the side away from the access opening and close to the first body side wall of the side sealing edge center O H . 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 of the access opening.

[0305] 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 between 0.2 mm and 0.25 mm; the distance between the first central axis I and the side sealing edge center O H is any value between 0.3 mm and 0.4 mm. In the direction perpendicular to the plane of the access opening, the distance between the second side edge center O N and the side sealing edge center O H is any value between 3 mm and 3.5 mm; the distance between the first central axis I and the side sealing edge center O H is any value between 2 mm and 2.5 mm.

[0306] Embodiment 2

[0307] In this Embodiment 2, as Figures 50 - 53As shown in the figure, the refrigerator includes two door bodies 30 arranged opposite to each other. The two door bodies 30 arranged opposite to each other 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 one. 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 box body to prevent cold air from overflowing.

[0308] 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 outwards, 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 outwards, which can avoid one of the two door bodies 30 arranged opposite to each other 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.

[0309] Embodiment 3

[0310] Combined with Figures 50 - 53 As shown in Figure 54 , the refrigerator in this Embodiment 3 is also provided with two door bodies 30 arranged opposite to each other. The two door bodies 30 arranged opposite to each other 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 one. 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 box body to prevent cold air from overflowing. Its setting method is the same as that in Embodiment 2.

[0311] Different from Embodiment 2, the refrigerator in this Embodiment 3 is applicable to the situation of being embedded in a cabinet.

[0312] 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 outwards; during the process of the door body 30 being rotated and opened from G2 to G5, the door body 30 moves inwards; 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 outwards in the first stage and then moving inwards in the second stage during the opening process.

[0313] 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, after the two door bodies 30 are separated, the opened door body 30 can move 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, limiting 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 avoiding interference between the door body 30 and the cabinet 100 when the door 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. 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, enabling the door body 30 of the refrigerator installed in the cabinet to open to a larger maximum angle.

[0314] Embodiment Four

[0315] 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 compartment of the refrigerator, and the turning beam 9 can be slidably engaged 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 leaking out.

[0316] 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 serves 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.

[0317] 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.

[0318] 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.

[0319] 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.

[0320] When the door body 30 is closed to the angle G S , and the external force continues to be 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. After that, the torsion spring starts to stretch to release the torsion spring torque so that the flipping beam 9 quickly flips in 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 two pairs of opening doors. And 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 9 cannot be effectively flipped 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.

[0321] In the fourth embodiment, the first hinge member is located at the first mating portion at the 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.

[0322] 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.

[0323] 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.

[0324] When the door body 30 is closed to the 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.

[0325] 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 early-stage deformation of the second engaging portion is released, and 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°. To sum up, when the door body 30 is closed to G B1 and then, under the interaction of the first engaging portion and the second engaging portion, the door body 30 closes automatically.

[0326] It should be noted that during the closing process of the above door body 30, the external force continues to act 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.

[0327] To sum up, 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.

[0328] 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.

[0329] During the process of the door body 30 from G B1 to the closed state, the external force is removed, the elastic force of the second engaging portion is released, and the door body 30 quickly closes automatically.

[0330] 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.

[0331] Combined with the settings 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.

[0332] As a settable way, G B1 > G2. That is, during the automatic closing process 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; the door body 30 moves inward, exerting an inward force on the flipping beam 9, and this force causes the flipping beam to flip. Since in this embodiment, during the process of the door body 30 continuing to close from G B1 , 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.

[0333] 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.

[0334] 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 way, 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.

[0335] As an implementable manner, the mounting block includes a plate body 81 which is disposed 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.

[0336] As an optional manner, on the bottom wall of the receiving groove 37, a first receiving portion recessed towards the inner cavity of the door body 30 is formed on the side 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.

[0337] As an optional manner, on the cavity bottom wall of the first receiving portion, a second receiving portion recessed towards the inner cavity of the door body 30 is formed. 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.

[0338] 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 disposed on the side of the plate body 81 away from the door side wall 32. The locking hook 82 extends away from the door side wall 32 and is bent 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.

[0339] The first engaging portion disposed 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 cabinet 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, and the stop portion 403 is located inside the locking hook 82. 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 closing incompletely 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 blocking of the stop portion 403, and thus disengages from the stop portion 403.

[0340] 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 is bent 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.

[0341] 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 or disengage from the stop portion 403 along the arc.

[0342] 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 stop portion 403. As Figure 62 shown, when the door body 30 closes to G B0 time, the hooking portion 84 abuts against the stop portion 403; then under the action of an external force, the door body 10 continues to close, the stop portion 403 and the hooking portion 84 interact with each other, the hooking portion 84 undergoes elastic deformation, under the combined action of the external force and the acting force of the stop portion 403, the moving hooking portion 82 gradually enters the hooking gap 404 (that is, the stop portion 403 enters the hooking portion 84). As Figure 63 shown, when the door body 30 closes to G B1 time, 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 later, 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 stop 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, the locking hook 82 and the hinge plate 40 are locked, realizing the locking of the door body 30 and the box body 10. That is, when the door body 30 closes to G B1 later, the door body 30 has the characteristic of automatic closing.

[0343] Embodiment Five

[0344] 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 turning 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 guide rail 91 is provided on the top wall of the storage compartment 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. Its setting method is the same as that of Embodiment Four.

[0345] 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. (Same setting method as Embodiment Four)

[0346] And it satisfies G B1 > G2. That is, during the process of the door body 30 automatically closing (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 turning beam 9 turns in place and the door body 30 closes in place.

[0347] Different from the fourth embodiment, Figure 64 As shown, the refrigerator of the fifth embodiment can be suitable for being embedded in a cabinet.

[0348] 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.

[0349] 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.

[0350] Embodiment 6

[0351] 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, the positions of the guiding part 60 and the guiding portion 50 when the door body 30 is closed can be the same as the corresponding positions of the guiding part 60 and the guiding part when the door body 30 in the first embodiment is opened to any one of the angles G2 to G5. For the convenience of description, take the position of the guiding part 60 when the door body 30 is closed to be the same as the position of the guiding part 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 to be the same as the position of the guiding portion 50 when the door body 30 in the first embodiment is opened to G2 as an example for illustration. However, it should be noted that the setting of the present application is not limited by this G2.

[0352] Specifically, in this embodiment, the guiding part 60 on the door body 30 rotates clockwise by G2 relative to the guiding part 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.

[0353] Compared with the setting of the included angle θ between the guiding portion 50 and the front door wall 31 in the first embodiment, in the sixth embodiment, the included angle between the guiding portion 50 and the front door wall 31 is θ - G2. It should be noted that in this embodiment, the included 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.

[0354] 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, 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.

[0355] In the sixth embodiment, optionally, 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, a seventh guiding segment K7, and an eighth guiding segment 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 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 between the seventh guiding segment K7 and the first guiding segment K1 is denoted as the first connection position a, the connection point between the first guiding segment K1 and the second guiding segment K2 is denoted as the second connection position b, the connection point between the second guiding segment K2 and the third guiding segment K3 is denoted as the third connection position c, the connection point between the third guiding segment K3 and the fourth guiding segment K4 is denoted as the fourth connection position d, the connection point between the fourth guiding segment K4 and the fifth guiding segment K5 is denoted as the fifth connection position e, the connection point between the fifth guiding segment K5 and the sixth guiding segment K6 is denoted as the sixth connection position f, the connection point between the sixth guiding segment K6 and the seventh guiding segment K7 is denoted as the seventh connection position g, and the connection point between the seventh guiding segment K7 and the eighth guiding segment K8 is denoted as the eighth connection position h.

[0356] 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, and the second hinge shaft 42 cooperates with the eighth guiding segment K8; the third hinge shaft 43 cooperates with the fifth guiding segment K5.

[0357] 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, and the second hinge shaft 42 cooperates with the first connection position a; the third hinge shaft 43 cooperates with the sixth guiding segment 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.

[0358] 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. The second connection position b is the point where the guiding track line K is closest to the door side wall 32.

[0359] 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;

[0360] 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.

[0361] 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.

[0362] 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 way, the sixth connection position f is located on the side of the first connection position a close to the rear door wall 33.

[0363] 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 way, 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.

[0364] 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 way, 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.

[0365] That is, in the projection on the plane where the front door wall 31 is located, 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 where the front door wall 31 is located, 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.

[0366] As a settable way, in the projection on the plane where the front door wall 31 is located, 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.

[0367] In the projection on the plane where the door side wall 32 is located, 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 way, in the projection on the plane where the door side wall 32 is located, the distance between the first connection position a and the sixth connection position f is less than 0.5 mm.

[0368] As a configurable manner, a concave point f1 is formed at a position where the sixth guiding segment K6 is close to the sixth connection position f. Specifically, the sixth guiding segment K6 protrudes towards its guiding centroid O at the concave point f1. As a configurable manner, during the opening process of the door body 30, when the second hinge shaft 42 cooperates with the second connection position b, the third hinge shaft 43 cooperates with the concave point f1.

[0369] 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. According to the principle described in the first embodiment, in the sixth embodiment, 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.

[0370] As Figures 67 - 77 shown, in the sixth embodiment, the opening angles of the door body 30 are denoted as Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8. Considering the relevance between the sixth embodiment and the first embodiment, the movement process of the door body 30 during opening is described in terms of 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 the sixth embodiment and the first embodiment is only for illustratively corresponding to the movement situation in the sixth embodiment, and the angles in the sixth embodiment are not limited by the angle relationship in the above two embodiments.

[0371] 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.

[0372] 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.

[0373] 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.

[0374] 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 located at E5 relative to the door body 30, and the third central axis F is located at F5 relative to the door body 30; that is, the axis triangle IEF is located at the fifth triangular position I5E5F5 relative to the door body 30.

[0375] 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 located at E6 relative to the door body 30, and the third central axis F is located at F6 relative to the door body 30; that is, the axis triangle IEF is located at the sixth triangular position I6E6F6 relative to the door body 30.

[0376] 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 located at E7 relative to the door body 30, and the third central axis F is located at F7 relative to the door body 30; that is, the axis triangle IEF is located at the seventh triangular position I7E7F7 relative to the door body 30.

[0377] 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 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 triangular position I8E8F8 relative to the door body 30.

[0378] 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 located at E relative to the door body 30 8` , and the third central axis F is located at F relative to the door body 30 8` ; that is, the axis triangle IEF is located at the triangular position defined by I 8` E 8` F 8` relative to the door body 30. 8`

[0379] 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 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 triangular position I9E9F9 relative to the door body 30.

[0380] 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 located at E relative to the door body 30 10 , and 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 .

[0381] 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 the first direction displacement The displacement component parallel to the door side wall 32 is the second displacement direction In different opening stages of the door body 30, the first direction displacement and the second direction displacement There will be different directions.

[0382] Hereinafter, the movement trend of the door body 30 will be described in the displacement coordinate system AOB set in the same embodiment.

[0383] (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.

[0384] (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 refer to

[0385] Towards the inner front side (inward and forward side) of the box body 10, the second direction displacement It points to the inner rear side of the housing 10 (the inner rear side).

[0386] 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

[0387] In the quadrant (A < 0, B > 0), the second-direction displacement is in the third 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 has a component displacement on the A-axis of and a component displacement on the B-axis of The second-direction displacement on

[0388] 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, when the door body 30 is 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, when the door body 30 is 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.

[0389] (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 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 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.

[0390] 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 in the fourth quadrant (A > 0, B < 0), and the second-direction displacement is in the first quadrant (A > 0, B > 0). For the first-direction displacement and the second-direction displacement perform on the A-axis and B-axis respectively

[0391] Displacement decomposition is performed thereon; 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 That is, during the process of the door body 30 being 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 move in the negative direction of the B-axis; that is, during the process of the door body 30 being opened from Q3 to 90°, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0392] Such as Figure 38 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.

[0393] 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.

[0394] 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 Displacement decomposition is respectively performed 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 At

[0395] The partial 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 partial displacement And a second partial displacement From this, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move forward along the positive direction of the A axis and move backward along 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.

[0396] (2) As Figure 39 Shown, when the door body 30 rotates and opens from 90° to Q8 (Q8 > 90°), 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 at this stage. In the plane of the top wall of the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends 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.

[0397] During the process of the door body 30 rotating and opening from 90° to Q8, 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 side), and the second direction displacement Points to the outer rear side of the box body 10 (outward and backward side).

[0398] 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 first direction displacement The partial displacement on the A axis is The partial displacement on the B axis is The second direction displacement On the A axis

[0399] The partial displacement is The partial displacement on the B axis is Among them, under the trajectory feature setting of the present invention, there is Then, That is, when the door body 30 rotates from 90° to Q8, in the displacement coordinate system AOB, the door body 30 has a first component displacement and a second component displacement Thus, it can be concluded that: relative to the cabinet 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 opens from 90° to Q8, the door body 30 has a tendency to move outwards and backwards relative to the cabinet 10.

[0400] In summary, during the whole process of the door body 30 opening 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 inwards first and then outwards.

[0401] 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 inwards first and then outwards (inwards → outwards) during the opening process.

[0402] In the sixth embodiment, the door body 30 has a tendency to move inwards during 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 away from the door side wall 32 and towards the door front wall 31, the second hinge shaft 42 moves relative to the guiding groove towards the door front wall 31, and the third hinge shaft 43 moves relative to the guiding groove away from the door front wall 31. The above setting of the door body 30 moving inwards during the opening process is applicable to the scenario of the built-in installation of the refrigerator in the cabinet. On the one hand, it can be set in the early stage of the opening of the door body 30, so that the door body 30 moves inwards, 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 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 avoid interference between the door body 30 and the cabinet 100 when the door is opened, and 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. On the other hand, when the door body 30 of the sixth embodiment moves inwards 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.

[0403] As a configurable way, during the process of the upper door body 30 rotating from the closed state to Q3, the third hinge shaft 43 moves relative to the guide groove in a direction away from the front door wall 31 and towards the side door wall 32. As another configurable way, the third hinge shaft 43 moves relative to the guide groove in a direction away from the front door wall 31 and first in a direction away from the side door wall 32, and then in a direction towards the side door wall 32.

[0404] As a configurable way, during the process of the upper 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. In this setting, the second hinge shaft 42 moves relative to the guide groove in a direction towards the front door wall 31 and the side door wall 32.

[0405] 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 way, 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 a direction away from the side door wall 32 and towards the front door wall 31, the second hinge shaft 42 moves relative to the guide groove in a direction away from the side door wall 32 and towards the front door wall 31, and the third hinge shaft 43 moves relative to the guide groove in a direction towards the side door wall 32. As a configurable way, during the opening process of the second stage, the third hinge shaft 43 moves relative to the guide groove first in a direction away from the front door wall 31 and then in a direction towards the front door wall 31. In the above settings, Q3 < 90°. That is, during the process of the door body 30 opening towards 90°, it has a tendency to move outwards; it can reduce the occlusion of the door body 30 on the access opening, 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 it is 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.

[0406] It should be noted that the first stage and the second stage in the sixth embodiment can be set independently and are not restricted by the movement conditions of the other stage; they can also be set to first experience the first stage and then the second stage.

[0407] 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 set 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 around the first central axis I (I2) relative to the door body 30 when the door body 30 is closed and simply rotates to G1; the position where the door body 30 represented by the solid line is located is the position reached when it rotates and opens 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 rotates to Q1 in the rotation manner of the present invention and then simply rotates around the first central axis I (the first central axis I (I3) of the previous state relative to the door body 30 when the door body 30 is opened to Q1) 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 rotates and opens 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.

[0408] By comparing the setting of the present invention with the way that the door body 30 simply rotates around the first central axis I in its previous state, it can be known that: during the process of the door body 30 being opened from the closed state to Q3, in the present 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.

[0409] During the process of the door body 30 being opened from Q3 to Q8, in the present 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.

[0410] The movement trends in the above - mentioned stages are consistent with the foregoing description.

[0411] 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 description to present the movement trend when the door body 30 is opened.

[0412] It should be noted that the movement of the first hinge axis 41 relative to the guiding part 50, and the movements of the second hinge axis 42 and the third hinge axis 43 relative to the guiding part 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 the stages.

[0413] In summary, Embodiments 1 to 6 of the present invention illustrate the solution of the present invention from multiple perspectives; it should be noted that between the embodiments, the differences from the embodiments they mention are mainly described, and the similarities are not described in detail. 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.

[0414] 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 them; 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.

[0415] For the sake of convenience in explanation, the above description has been made in combination 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 room with an access opening and has a first body side wall and a second body side wall that are oppositely arranged; Two door bodies that are oppositely arranged on the box body; the door bodies have a front door wall that is away from the box body when the door bodies are closed, and a door side wall that is connected to the front door wall and away from the other door body; Side sealing strips that are arranged on one side of the door body away from the door side wall; when the two door bodies are closed, the side sealing strips on the two door bodies cooperate; A hinge assembly that connects the door body and the box body to enable the door body to rotate relative to the box body; The hinge assembly includes: 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 away from the first body side wall; A guiding part and a guiding portion that are located at the end of the door body and close to the door side wall; the guiding part defines a linear guiding track line that extends from one end close to the door side wall and the front door wall in a direction away from the door side wall and the front door wall; the guiding portion 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; Wherein, 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 of 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 that 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 door wall 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 door wall; During the process of the door body being opened from the closed state to an angle G2, the first hinge shaft moves linearly along the guiding track line relative to the guiding part in a direction away from the door side wall and the front door wall, the second hinge shaft and the third hinge shaft both move relative to the guiding portion, the door body opens the access opening and moves outward a certain distance, and at the same time drives the side sealing strip on it to separate from the side sealing strip on the other door body; During the process of the door body being continuously opened from the angle G2, the first hinge shaft moves linearly along the guiding track line relative to the guiding part in a direction close to the door side wall and the front door wall, the second hinge shaft and the third hinge shaft both move relative to the guiding portion, and the door body opens the access opening and moves inward a certain distance.

2. The refrigerator according to claim 1, wherein: Within the projection of the top wall plane of the cabinet, on the side of the cabinet close to the door body, a displacement coordinate system AOB is established; wherein, within 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 in front of the door when the door is closed is defined as 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 defined as positive; the displacement coordinate system AOB is stationary relative to the coordinate system of the cabinet; The door body has a door rear wall disposed opposite to the front wall in front of the door; When the door body is opened, the door body has a first-direction displacement parallel to the rear wall of the door and a second-direction displacement 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 opening the door body from the closed state to an angle G2, 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; 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, 3. The refrigerator according to claim 2, wherein: 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 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 side away from the front wall of the door; Among them, Among them, G2 < G5.

4. The refrigerator according to claim 3, wherein: 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, G2 < G5 < 90°.

5. The refrigerator according to claim 4, wherein: During the process of opening the door body from the fifth angle G5 to 90°, 6. The refrigerator according to claim 2 or 3 or 4 or 5, wherein: 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 G2 < G5 < 90° < G max .

7. The refrigerator according to claim 6, wherein: The door body is opened from 90° to the maximum angle G that the door body can be opened max during the process 8. The refrigerator according to claim 1 or 2 or 3 or 4 or 5 or 7, 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 of the top wall plane 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.

9. The refrigerator according to claim 1 or 2 or 3 or 4 or 5 or 7, wherein: The door body has a door rear wall disposed opposite to the front wall in front of the door; the door rear 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 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 cabinet during the opening process of the door body relative to the cabinet; In the projection of the top wall plane of the cabinet, during the process of the door body opening 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; 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.

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