Refrigerator

Abstract

The present invention provides a refrigerator, which includes a box body, a hinge assembly, and a door body; the hinge assembly includes a guiding portion and a guiding section located at the end of the door body, a first hinge shaft, a second hinge shaft, and a third hinge shaft fixed to the box body; during the process of the door body being opened from the closed state, the first hinge shaft moves relative to the guiding portion, and both the second hinge shaft and the third hinge shaft move relative to the guiding section, and the door body moves a certain distance horizontally; the guiding section includes a second guiding section and a third guiding section; the second guiding section extends in a direction away from the side wall of the door and close to the front wall of the door to a third connection position, and the third guiding section extends from the third connection position in a direction away from the side wall and the front wall of the door; when the door body is opened to 90°, the straight line where the central axes of the first hinge shaft and the second hinge shaft are located is perpendicular to the front wall of the door, and the second hinge shaft is in contact and cooperation with the third connection position; the refrigerator of the present invention enables the door body to generate a certain displacement horizontally when opened, and enables the door body to maintain an open state of 90°, which is convenient for taking and placing items.

Description

Technical Field

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

[0002] The door body of the refrigerator is connected to the refrigerator body through a hinge, and the hinge enables the door body of the refrigerator to rotate, thereby opening and closing the refrigerator body; after the door body of the refrigerator is opened, due to the offset of its center of gravity, the phenomenon of automatic closing will occur and it cannot be kept in the open state. Therefore, when people use the refrigerator, they need to hold the door with one hand and take or place food with the other hand, which brings a lot of inconvenience. Summary of the Invention

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

[0004] For this reason, the present application aims to provide a refrigerator, and the hinge structure of the refrigerator enables the door body to remain in the open state when it is at 90°.

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

[0006] A body, which defines a storage compartment with an access opening and has a first body side wall and a second body side wall arranged opposite to each other;

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

[0008] The hinge assembly includes:

[0009] A first hinge shaft, a second hinge shaft and a third hinge shaft, which are fixed on the body and close to the first body side wall; the second hinge shaft, the first hinge shaft and the third hinge shaft are successively away from the first body side wall;

[0010] A guiding portion and a guiding part, which are located at the end of the door body and close to the door side wall; the guiding portion defines a linear guiding track line, and the guiding part defines a closed annular guiding track line; wherein, the guiding track line surrounds the guiding track line;

[0011] Wherein, the arrangement direction of the first body side wall and the second body side wall is defined as the transverse direction; during the process of the door body being opened from the closed state, the first hinge shaft moves linearly along the guiding track line relative to the guiding portion, both the second hinge shaft and the third hinge shaft move relative to the guiding part, and the door body opens the access opening and moves a certain distance along the transverse direction;

[0012] The guiding track line includes a second guiding section K2 and a third guiding section K3 located on the side of the second guiding section K2 away from the door side wall; wherein, the connection position between the second guiding section K2 and the third guiding section K3 is denoted as the third connection position c;

[0013] The second guiding section K2 extends in a direction away from the door side wall and towards the front wall of the door to the third connection position c, and the third guiding section K3 extends from the third connection position c in a direction away from the door side wall and the front wall of the door;

[0014] When the door body is opened to 90°, the straight line where the central axis of the first hinge shaft and the central axis of the second hinge shaft are located is perpendicular to the front wall of the door, and the second hinge shaft is in contact and cooperation with the third connection position c.

[0015] 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;

[0016] In the projection on the plane of the top wall of the box body, the first central axis I, the second central axis E and the third central axis F form an axis triangle IEF; wherein, the axis triangle IEF is an obtuse triangle, and the angle FIE is an obtuse angle.

[0017] In some embodiments of the refrigerator of the present application, the angle FIE belongs to any value in the range of 172° to 178°.

[0018] In some embodiments of the refrigerator of the present application, in the projection on the plane of the top wall of the box body, the longest side EF of the axis triangle IEF is located on the side of the vertex I of the axis triangle IEF away from the access opening.

[0019] In some embodiments of the refrigerator of the present application, in the projection on the plane of the top wall of the box body, the straight line IE where the first central axis I and the second central axis E are located is parallel to the access opening, and 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.

[0020] In some embodiments of the refrigerator of the present application, the guiding track line is parallel to the front wall of the door; during the opening process of the door body, the first hinge shaft moves relative to the door body in a direction parallel to the front wall of the door.

[0021] In some embodiments of the refrigerator of the present application, the centroid of the guiding track line is denoted as the guiding centroid O, and the guiding track line surrounds its guiding centroid O;

[0022] The guiding track line includes a first guiding segment K1, a fourth guiding segment K4, a fifth guiding segment K5 and a sixth guiding segment K6; 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 and the sixth guiding segment K6 are connected end to end in sequence; the first guiding segment K1, the second guiding segment K2, the third guiding segment K3, the fourth guiding segment K4 and the fifth guiding segment K5 all bulge away from the guiding centroid O; the sixth guiding segment K6 bulges towards the guiding centroid O to enable smooth transition connection between the fifth connection position e and the first connection position a.

[0023] Wherein, the connection point between the sixth guiding segment K6 and the first guiding segment K1 is denoted as the first connection position a; the connection points where the first guiding segment K1, the second guiding segment K2, the third guiding segment K3, the fourth guiding segment K4, the fifth guiding segment K5 and the sixth guiding segment K6 are 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 and the sixth connection position f respectively.

[0024] In the projection on the plane where the front door wall is located, the second connection position b, the first connection position a, 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 door side wall.

[0025] In the projection on the plane where the door side wall is located, the third connection position c, the second connection position b, the fourth connection position d, the first connection position a, the sixth connection position f and the fifth connection position e are successively away from the front door wall.

[0026] In some embodiments of the refrigerator of the present application, the plane passing through the centroid of the door body and parallel to the front door wall is denoted as the centroid plane P; during the opening process of the door body, the centroid plane P remains stationary relative to the door body.

[0027] During the process of the door body being opened from the closed state to the angle G`1, the centroid plane P is located on the side of the first hinge axis, the second hinge axis and the third hinge axis away from the front door wall.

[0028] During the process of the door body being opened from the angle G`1 to the maximum angle Gmax that the door body can reach, the centroid plane P is located between the first hinge axis and the third hinge axis and on the side of the first hinge axis away from the second hinge axis.

[0029] Wherein, G`1:Gmax belongs to any value within 0.8 - 1.

[0030] In some embodiments of the refrigerator of the present application, the door body has a door rear wall opposite to the front door wall; the door rear wall intersects with the door side wall to form a second side edge N.

[0031] A door seal is provided on the rear wall of the door; when the door is closed, the door seal fits against the front end face of the box body surrounding the access opening; the door seal includes a side seal edge H that is close to the side wall of the door and away from the front wall of the door.

[0032] The plane where the access opening is located is denoted as the second reference plane M2; the plane where the side wall of the second body is located is denoted as the first reference plane M1, and the first reference plane M1 is perpendicular to the second reference plane M2; the first reference plane M1 and the second reference plane M2 remain stationary relative to the box body during the opening process of the door relative to the box body.

[0033] In the projection on the plane of the top wall of the box body, during the opening process of the door 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.

[0034] The side seal edge H first moves in a direction close to the first reference plane M1 and the second reference plane M2, and then moves in a direction close to the first reference plane M1 and away from the second reference plane M2.

[0035] In some embodiments of the refrigerator of the present application, in the projection on the plane of the top wall of the box body, during the process of opening the door from the closed state to an angle G0, the second side edge N is located on the side of the side seal edge H close to the first side wall of the body.

[0036] During the process of opening the door from the angle G0 to the maximum angle Gmax that the door can reach, the second side edge N is located on the side of the side seal edge H away from the first side wall of the body.

[0037] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0038] The present invention provides a refrigerator, which includes a box body having a first body side wall and a second body side wall disposed opposite to each other, a hinge assembly, and a door body having a front door wall and a door side wall; the hinge assembly includes a guiding portion and a guiding portion located at the end of the door body, a first hinge shaft, a second hinge shaft, and a third hinge shaft fixed to the box body; wherein, the guiding portion defines a linear guiding track line; the guiding portion defines a closed annular guiding track line, and the guiding track line surrounds the guiding track line; the second hinge shaft, the first hinge shaft, and the third hinge shaft are sequentially away from the first body side wall; during the process of the door body being opened from the closed state, the first hinge shaft moves linearly along the guiding track line relative to the guiding portion, both the second hinge shaft and the third hinge shaft move relative to the guiding portion, the door body opens a taking and placing opening and moves a certain distance horizontally; the guiding track line includes a second guiding section and a third guiding section; the second guiding section extends in a direction away from the door side wall and close to the front door wall to a third connection position, and the third guiding section extends from the third connection position in a direction away from the door side wall and the front door wall; when the door body is opened to 90°, the straight line where the central axis of the first hinge shaft and the central axis of the second hinge shaft are located is perpendicular to the front door wall, and the second hinge shaft is in contact and cooperation with the third connection position; the refrigerator of the present invention enables the door body to generate a certain displacement horizontally when opened, and enables the door body to maintain an open state of 90°, which is convenient for taking and placing items. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a perspective view of the refrigerator according to Embodiment 1 of the present invention;

[0040] Figure 2 is a top view of the refrigerator according to Embodiment 1 of the present invention;

[0041] Figure 3 is Figure 2 a partial structural schematic diagram of the cooperation between the first hinge member and the second hinge member when the door body is closed;

[0042] Figure 4 is a structural schematic diagram of the first hinge member in Embodiment 1 of the refrigerator of the present invention;

[0043] Figure 5 is another perspective structural schematic diagram of the first hinge member in Embodiment 1 of the refrigerator of the present invention;

[0044] Figure 6 is a relative position schematic diagram of the connection area between the door body and the box body when the door body is closed in Embodiment 1 of the refrigerator of the present invention;

[0045] Figure 7 is a relative position schematic diagram of the connection area between the door body and the box body when the door body is opened to the maximum angle in Embodiment 1 of the refrigerator of the present invention;

[0046] Figure 8 is a view of the hinge assembly when the door body is opened to φ = 0° in Embodiment 1 of the refrigerator of the present invention;

[0047] Figure 9 It is a view of the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G1;

[0048] Figure 10 It is a view of the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G2;

[0049] Figure 11 It is a view of the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G3;

[0050] Figure 12 It is a view of the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G4;

[0051] Figure 13 It is a view of the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G5;

[0052] Figure 14 It is a view of the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G6;

[0053] Figure 15 It is a view of the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G7;

[0054] Figure 16 It is a view of the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G8;

[0055] Figure 17 It is a view of the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G9;

[0056] Figure 18 It is a view of the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G10;

[0057] Figure 19 It is a view of the hinge assembly when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G11;

[0058] Figure 20 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 of the refrigerator in the first embodiment of the present invention;

[0059] Figure 21 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding part when the door body of the refrigerator in the first embodiment of the present invention is opened from the closed state to different angles during the opening process to the fourth angle G4;

[0060] Figure 22It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened from the fourth angle G4 to the eleventh angle G11 at different opening angles;

[0061] Figure 23 It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G1;

[0062] Figure 24 It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G2;

[0063] Figure 25 It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G3;

[0064] Figure 26 It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G4;

[0065] Figure 27 It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G5;

[0066] Figure 28 It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G6;

[0067] Figure 29 It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G7;

[0068] Figure 30 It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G8;

[0069] Figure 31 It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G9;

[0070] Figure 32 It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G10;

[0071] Figure 33 It 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 when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G11;

[0072] Figure 34 It 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;

[0073] Figure 35 It is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in the first embodiment of the present invention is less than the fourth angle G4;

[0074] Figure 36 It is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in the first embodiment of the present invention is greater than the fourth angle G4 and less than 90°;

[0075] Figure 37 It is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in the first embodiment of the present invention is 90°;

[0076] Figure 38 It is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in the first embodiment of the present invention is greater than 90° and less than the eleventh angle G11;

[0077] Figure 39 It is a comparison diagram of the position of the door body of the refrigerator in the first embodiment when it is opened to G1 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 G1;

[0078] Figure 40 It is a comparison diagram of the position of the door body of the refrigerator in the first embodiment when it is opened to G2 and the position of the door body when it rotates from the state of being opened to G1 around its first central axis I at the time of being opened to G1 to G2;

[0079] Figure 41 It is a comparison diagram of the position of the door body of the refrigerator in the first embodiment when it is opened to G3 and the position of the door body when it rotates from the state of being opened to G2 around its first central axis I at the time of being opened to G2 to G3;

[0080] Figure 42 It is a comparison diagram of the position of the door body of the refrigerator in the first embodiment when it is opened to G4 and the position of the door body when it rotates from the state of being opened to G3 around its first central axis I at the time of being opened to G3 to G4;

[0081] Figure 43 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 G5 and the position when the door body is rotated to G5 with the first central axis I when the door body is opened to the G4 state as the rotation axis;

[0082] Figure 44 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 G6 and the position when the door body is rotated to G2 with the first central axis I when the door body is opened to the G5 state as the rotation axis;

[0083] Figure 45 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 G7 and the position when the door body is rotated to G2 with the first central axis I when the door body is opened to the G6 state as the rotation axis;

[0084] Figure 46 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 G8 and the position when the door body is rotated to G3 with the first central axis I when the door body is opened to the G7 state as the rotation axis;

[0085] Figure 47 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 G9 and the position when the door body is rotated to G4 with the first central axis I when the door body is opened to the G8 state as the rotation axis;

[0086] Figure 48 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 G10 and the position when the door body is rotated to G5 with the first central axis I when the door body is opened to the G9 state as the rotation axis;

[0087] Figure 49 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 G11 and the position when the door body is rotated to Gmax with the first central axis I when the door body is opened to the G10 state as the rotation axis;

[0088] Figure 50 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 when the door body of the refrigerator in the second embodiment of the present invention is opened to φ = 0°;

[0089] Figure 51 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 when the door body of the refrigerator in the second embodiment of the present invention is opened to φ = Q1;

[0090] Figure 52It is a schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second and third hinge shafts relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to φ = Q2;

[0091] Figure 53 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second and third hinge shafts relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to φ = Q3;

[0092] Figure 54 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second and third hinge shafts relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to φ = Q4;

[0093] Figure 55 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second and third hinge shafts relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to φ = Q5;

[0094] Figure 56 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second and third hinge shafts relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to φ = Q6;

[0095] Figure 57 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second and third hinge shafts relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to φ = G6`;

[0096] Figure 58 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second and third hinge shafts relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to φ = Q7;

[0097] Figure 59 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second and third hinge shafts relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened from the closed state to Q7 at different opening angles;

[0098] Figure 60 It is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in Embodiment 1 of the present invention is less than Q2;

[0099] Figure 61 It is a schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in Embodiment 1 of the present invention is greater than Q2 and less than 90°;

[0100] Figure 62It is a schematic diagram showing the relative positions of the door body and the cabinet body when the opening angle of the door body in the first embodiment of the refrigerator of the present invention is 90°;

[0101] Figure 63 It is a schematic diagram showing the relative positions of the door body and the cabinet body when the opening angle of the door body in the first embodiment of the refrigerator of the present invention is greater than 90° and less than Q7;

[0102] Figure 64 It is a comparison diagram of the position of the door body when it is opened to Q1 and the position of the door body when it is rotated to G1 with its first central axis I at the closing state as the rotation axis in the first embodiment of the refrigerator of the present invention;

[0103] Figure 65 It is a comparison diagram of the position of the door body when it is opened to Q2 and the position of the door body when it is rotated to G2 with its first central axis I at the Q1 state as the rotation axis in the first embodiment of the refrigerator of the present invention;

[0104] Figure 66 It is a comparison diagram of the position of the door body when it is opened to Q3 and the position of the door body when it is rotated to G3 with its first central axis I at the Q2 state as the rotation axis in the first embodiment of the refrigerator of the present invention;

[0105] Figure 67 It is a comparison diagram of the position of the door body when it is opened to Q4 and the position of the door body when it is rotated to G4 with its first central axis I at the Q3 state as the rotation axis in the first embodiment of the refrigerator of the present invention;

[0106] Figure 68 It is a comparison diagram of the position of the door body when it is opened to Q5 and the position of the door body when it is rotated to G5 with its first central axis I at the Q4 state as the rotation axis in the first embodiment of the refrigerator of the present invention;

[0107] Figure 69 It is a comparison diagram of the position of the door body when it is opened to Q6 and the position of the door body when it is rotated to G2 with its first central axis I at the Q5 state as the rotation axis in the first embodiment of the refrigerator of the present invention;

[0108] Figure 70 It is a comparison diagram of the position of the door body when it is opened to Q6` and the position of the door body when it is rotated to G2 with its first central axis I at the Q6 state as the rotation axis in the first embodiment of the refrigerator of the present invention;

[0109] Figure 71 It is a comparison diagram of the position of the door body when it is opened to Q7 and the position of the door body when it is rotated to G2 with its first central axis I at the Q6 state as the rotation axis in the first embodiment of the refrigerator of the present invention;

[0110] Figure 72 It is a three-dimensional view of the third embodiment of the refrigerator of the present invention;

[0111] Figure 73 It is the top view in the third embodiment of the refrigerator of the present invention;

[0112] Figure 74 It is Figure 73 a partial structural schematic diagram of the relative positions of the two door bodies at the mating part when the door bodies are closed;

[0113] Figure 75 It is a schematic diagram of the cooperation of the two side sealing strips when the door bodies of the refrigerator in the third embodiment of the present invention are in the closed state;

[0114] Figure 76 It is a schematic diagram of the relative positions of the two side sealing strips when the door bodies of the refrigerator in the third embodiment of the present invention start to open;

[0115] Figure 77 It is the top view of the refrigerator of the present invention in the fourth embodiment relative to the cabinet;

[0116] Figure 78 It is the three-dimensional view of the refrigerator in the fifth embodiment of the refrigerator of the present invention;

[0117] Figure 79 It is a schematic diagram of the relative positions of the flip beam and the box body from another perspective when the door body is opened in the fifth embodiment of the refrigerator of the present invention;

[0118] Figure 80 It is the top view of the refrigerator in the fifth embodiment of the refrigerator of the present invention;

[0119] Figure 81 It is a schematic diagram of the relative positions of the door body, the guide block and the guide groove when the door body is closed to GS in the fifth embodiment of the refrigerator of the present invention;

[0120] Figure 82 It is a schematic diagram of the relative positions of the door body, the guide block and the guide groove when the door body is closed to GF in the fifth embodiment of the refrigerator of the present invention;

[0121] Figure 83 It is an exploded structural schematic diagram of the mounting block and the end of the door body in the fifth embodiment of the refrigerator of the present invention;

[0122] Figure 84 It is a structural schematic diagram of the first mating part and the second mating part when the door body is in the closed state in the fifth embodiment of the refrigerator of the present invention;

[0123] Figure 85 It is a structural schematic diagram of the door body when the door body is closed from the open state to the contact of the first mating part and the second mating part in the fifth embodiment of the refrigerator of the present invention;

[0124] Figure 86 It is a structural schematic diagram of the door body when the door body is closed from the open state to the maximum elastic deformation of the second mating part caused by the interaction of the first mating part and the second mating part in the fifth embodiment of the refrigerator of the present invention;

[0125] Figure 87 It is a top view of the refrigerator relative to the cabinet in the sixth embodiment of the refrigerator of the present invention.

[0126] In each of the above figures: In each of 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 5; side seal edge H; hinge plate 40; connecting portion 401; extending portion 402; stopping portion 403; hooking 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 segment K1; second guiding segment K2; third guiding segment K3; fourth guiding segment K4; fifth guiding segment K5; sixth guiding segment K6; seventh guiding segment 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 door seal 3; plate body 81; locking hook 82; root connecting portion 83; hooking portion 84; door corner portion 7; top plate 71; side plate 72; receiving space 70; flipping beam 9; guiding block 90; guiding rail 91. Detailed implementation manners

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

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

[0129] 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.

[0130] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" 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 situations.

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

[0132] Embodiment 1

[0133] Refer to Figures 1-5 , 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.

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

[0135] A pick-up 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 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 opening.

[0136] Specifically, in this embodiment, the cabinet 10 includes a first body side wall and a second body side wall arranged opposite to each other (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. Wherein, 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; which is also equivalent to the normal direction of the first body side wall being the transverse direction.

[0137] 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 away from the box body 10 of the second side edge N. It should be noted that the intersection line of the front wall 31 and the side wall 32 is the first side edge W in theory (similarly, the second side edge N in theory 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 set with a rounded corner 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 (the same applies to the second side edge N). In this application, for the convenience of description, the first side edge W in theory and the second side edge N in theory are used for description to illustrate the movement trend of the first side edge W or the second side edge N during the opening process of the door body 30. In addition, a plane passing through the centroid of the door body 30 and parallel to the front wall 31 is denoted as the centroid plane P; during the opening process of the door body 30, the centroid plane P moves with the door body 30, and the centroid plane P remains stationary relative to the door body. In this embodiment, the centroid plane P determined with the geometric center of the door body 30 as the centroid is used for description.

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

[0139] 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 arranged on the box body 10 and close to the first body side wall, and the second hinge member is arranged at the end of the door body 30 close to the first hinge member. The first hinge member and the second hinge member cooperate with each other 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 of the door body 30 is the side wall 32 when it 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 it is closed.

[0140] Refer to Figures 3-5, 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 having a horizontal plate shape. The connecting portion 401 can be fastened to the top wall of the cabinet 10 by fasteners such as screws, pins, and bolts. Specifically, for the hinge at the upper end of the door body 30, the connecting portion 401 is connected to the top wall of the cabinet 10. For the hinge at the lower end of the door body 30, the connecting portion 401 is connected to the front end face of the cabinet 10. Among them, a first hinge shaft 41, a second hinge shaft 42, and a third hinge shaft 43 are formed on the extending portion 402 of the first hinge member; among them, the second hinge shaft 42 is located on the side of the first hinge shaft 41 close to the first body side wall, and the third hinge shaft 43 is located on the side of the first hinge shaft 41 away from the first body side wall.

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

[0142] In this embodiment, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are formed on the extending portion 402 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 portion 60 provided on the door body 30.

[0143] 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 the upper and lower ends of the door body 30, and the guiding portions 50 and the guiding portions 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.

[0144] In this embodiment, as Figure 3 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 inner cavity is denoted as the outer side; in contrast, the side of the reference plane M0 close to the storage chamber inner cavity is denoted as the inner side. As Figure 5As 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.

[0145] 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 shape; that is, during the opening process of the door body 30, the guiding part 50 guides the movement of the first hinge shaft 41, so that the central axis of the first hinge shaft 41 moves along the guiding trajectory line S in a straight line. In some embodiments of the present application, when the door body 30 is closed, the guiding trajectory line S is parallel to the plane where the access opening is located. As a settable manner, the guiding trajectory line S is a straight line parallel to the front wall 31 of the door; during the opening process of the door body 30, the first hinge shaft 41 moves relative to the door body 30 in a direction parallel to the front wall of the door; that is, the first hinge shaft 41 moves relative to the door body 30 in a direction perpendicular to the side wall 32 of the door, effectively controlling the displacement of the door body 30 in the direction perpendicular to the side wall 32 of the door.

[0146] Among them, 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.

[0147] As a settable manner, the guiding part 50 is set as a guiding groove, the guiding part 60 is set as a guiding groove, and the central trajectory line of the guiding groove is denoted as the guiding trajectory line S. The guiding groove is an annular closed groove; the groove wall of the guiding groove is annular to define the closed annular guiding trajectory line K. That is, in the projection on the plane of the top wall of the box body 10, 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.

[0148] In the present invention, the guiding portion 60 defines a closed-loop guiding track line. Optionally, the guiding groove is a closed-loop groove. The above-mentioned closed-loop guiding portion 60 has high strength, good machinability, and good machining precision. In addition, the closed-loop setting form makes the guiding portion 60 have excellent detectability to ensure precision. Moreover, the closed-loop guiding portion 60 has good resistance to deformation, effectively ensuring its precision. In combination with the linear guiding portion 50, the first hinge shaft 41 fixed to the box body 10 cooperates with the linear guiding portion 50, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guiding portion 60, which can accurately control the movement of the door body 30, causing the door body 30 to displace a certain distance in the lateral direction to meet the requirements of various applications; and it increases the stability of the movement of the door body 30 and improves the user experience.

[0149] In some embodiments of the present application, the guiding groove is a straight groove, and the extending direction of the guiding groove is parallel to the door sidewall 32 to increase the detectability of the guiding portion 50, thereby ensuring the machining precision. In this embodiment, the guiding groove being a straight groove parallel to the door sidewall 32 is taken as an example for illustration.

[0150] See Figures 6-7 , in some embodiments of the present application, the end of the door body 30 close to the door sidewall 32 is recessed toward the inner cavity side of the door body 30 to form a mounting platform, and the second hinge member (guiding portion 50 and guiding portion 60) is arranged on the mounting platform.

[0151] As an optional way, the extending portion 402 of the hinge plate 40 includes a first extending plate 4021 and a second extending plate 4022; wherein, one end of the first extending plate 4021 is connected to the connecting portion 401, and the other end is connected to the second extending plate 4022. The first extending plate 4021 has a first side close to the first body sidewall. Along the direction from the connecting portion 401 to the second extending plate 4022, the first side extends obliquely away from the first body sidewall. The second extending 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 extending portion 402 close to the first body sidewall. The open end of the avoidance opening faces the first body sidewall. When the door body 30 is opened, the avoidance opening allows the part of the door body 30 close to the door sidewall 32 to gradually enter the avoidance opening, ensuring that the door body 30 does not interfere with the extending portion 402 when opened, enabling the door body 30 to be opened to a larger angle.

[0152] As another configurable way, the door body 30 has a door corner 7 near the door side wall 32; the door corner 7 has a top plate 71 and a side plate 72 that forms part of the door side wall 32. The top plate 71, the side plate 72 and the mounting table together define a receiving space 70. When the door body 30 is closed, at least a part of the extending portion 402 of the first hinge member is received in the receiving space 70 to cooperate with the second hinge member. When the door body 30 is closed, the above-mentioned door corner 7 shields the second hinge member and the extending portion 402 of the first hinge member, reducing dust from falling in and effectively ensuring the smoothness of the cooperation of the hinge assembly. With the above-mentioned avoidance opening provided, when the door body 30 is opened, interference between the door body 30 (the side plate 72 of the door corner 7 or the area of the front door wall 31 near the first side edge W) and the extending portion 402 is avoided, effectively ensuring that the door body 30 can be opened to a larger angle.

[0153] 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 provided at one end of the extending 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 provided on the second extension plate 4022 so that there is enough space on the extending portion 402 to provide an avoidance opening to avoid interference when the door body 30 is opened, thereby ensuring the opening angle of the door body 30. On the other hand, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are provided on the second extension plate 4022 away from the pick-and-place opening, exerting a force on 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 the door body 30 to deform and shift.

[0154] As a configurable way, when the door body 30 is closed, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are located on the side of the centroid plane P close to the front door wall 31.

[0155] As a configurable way, the distance between the second hinge shaft 42 and the first hinge shaft 41 is less than the distance between the first hinge shaft 41 and the third hinge shaft 43. In a configurable way, the third hinge shaft 43 is located on the side of the first hinge shaft 41 and the second hinge shaft 42 away from the pick-and-place opening.

[0156] In some embodiments of the present application, such as Figure 3As shown, 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, and a sixth guiding segment K6 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, while preventing the second hinge shaft 42 and the third hinge shaft 43 from disengaging from the guiding groove. Among them, the connection point of the sixth guiding segment K6 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, and the connection point of the fifth guiding segment K5 and the sixth guiding segment K6 is denoted as the sixth connection position f.

[0157] As an adjustable manner, when the door body 30 is closed, the second hinge shaft 42 cooperates with the first connection position a of the guiding groove. That is, when the door body 30 is closed, the second hinge shaft 42 is located at the first connection position a.

[0158] Among them, the second connection position b is located on the side of the first connection position a close to the door side wall 32 and the door front wall 31;

[0159] The third connection position c is located on the side of the second connection position b close to the door front wall 31 and away from 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.

[0160] The fourth connection position d is located on the side of the third connection position c close to the door rear wall 33 and away from the door side wall 32, and the fourth connection position d is located on the side of the second connection position b close to the door rear wall 33. In this embodiment, the fourth connection position d is located on the side of the first connection position a close to the door front wall 31.

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

[0162] The sixth connection position f is located on the side of the fifth connection position e close to the door front wall 31 and the door side wall 32. In this embodiment, the sixth connection position f is located on the side of the first connection position a close to the door rear wall 33 and away from the door side wall 32. As an adjustable manner, the sixth connection position f is located on the side of the third connection position c close to the door side wall 32.

[0163] That is, in the projection on the plane where the front door wall 31 is located, the second connection position b, the first connection position a, 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 door side wall 32.

[0164] In the projection on the plane where the door side wall 32 is located, the third connection position c, the second connection position b, the fourth connection position d, the first connection position a, the sixth connection position f, and the fifth connection position e are successively away from the front door wall 31. In this embodiment, in the projection on the plane where the door side wall 32 is located, relative to the first connection position a, the fourth connection position d is closer to the second connection position b.

[0165] As a settable manner, in the projection on the plane where the door side wall 32 is located, the second connection position b and the fourth connection position d are adjacent to each other. Optionally, in the projection on the plane where the door side wall 32 is located, the distance between the second connection position b and the fourth connection position d is less than 3 mm; the distance between the first connection position a and the fourth connection position d is less than 10 mm.

[0166] As a settable manner, in the projection on the plane where the door side wall 32 is located, the projection points of the fifth connection position e, the sixth connection position f, the first connection position a, and the third connection position c are successively denoted as e`, f`, a`, and c`. Among them, the distance between the fifth connection position e and the sixth connection position f is denoted as e`f`, the distance between the fifth connection position e and the first connection position a is denoted as e`a`, and the distance between the first connection position a and the third connection position c is denoted as a`c`; among them, e`a`:a`c` belongs to any value of 3 to 4; e`f`:e`a` belongs to any value of 0.5 to 0.6.

[0167] In this embodiment, the guide groove surrounds its guiding centroid O, and the first guiding section K1, the second guiding section K2, the third guiding section K3, the fourth guiding section K4, and the fifth guiding section K5 all protrude away from the guiding centroid O; the sixth guiding section K6 protrudes toward the guiding centroid O, so that the guiding track line K smoothly transitions from the fifth connection position e to the first connection position a.

[0168] In this embodiment, along the direction of approaching the second connection position b from the first connection position a, the first guiding section K1 extends in the direction of approaching the door side wall 32 and the front door wall 31; along the direction of approaching the third connection position c from the second connection position b, the second guiding section K2 extends in the direction of moving away from the door side wall 32 and approaching the front door wall 31; along the direction of approaching the fourth connection position d from the third connection position c, the third guiding section K3 extends in the direction of moving away from the door side wall 32 and the front door wall 31; along the direction of approaching the fifth connection position e from the fourth connection position d, the fourth guiding section K4 extends in the direction of approaching the door side wall 32 and moving away from the front door wall 31; along the direction of approaching the sixth connection position f from the fifth connection position e, the fifth guiding section K5 extends in the direction of approaching the door side wall 32 and the front door wall 31; along the direction of approaching the first connection position a from the sixth connection position f, the sixth guiding section K6 extends in the direction of approaching the door side wall 32 and the front door wall 31, and the sixth guiding section K6 bulges towards the guiding centroid O.

[0169] That is, in this embodiment, the second connection position b is the point on the guiding track line K closest to the door side wall 32, and the fourth connection position d is the point on the guiding track line K farthest from the door side wall 32; the third connection position c is the point on the guiding track line K closest to the front door wall 31, and the fifth connection position e is the point on the guiding track line K closest to the rear door wall 33.

[0170] As an implementable manner, as Figure 8 shown, 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. As a settable manner, when the door body 30 is closed, the second hinge shaft 42 is in interference fit with one end of the sixth guiding section K6 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 section K3 of the guiding groove away from the door side wall 32.

[0171] In this embodiment, along the direction from the first connection position a towards the sixth connection position f, the sixth guiding segment K6 extends away from the door sidewall 32 and the front door wall 31 and protrudes towards the guiding centroid O; while along the direction from the fourth connection position d towards the third connection position c, the third guiding segment K3 extends towards the door sidewall 32 and the front door wall 31. That is, along the direction from the first connection position a towards the sixth connection position f, the distance between the sixth guiding segment K6 and the door sidewall 32 increases; along the direction from the fourth connection position d towards the third connection position c, the distance between the third guiding segment K3 and the door sidewall 32 decreases. The above settings can prevent the third hinge shaft 43 from moving relative to the guiding groove along the third guiding segment K3 in the direction from the fourth connection position d towards the third connection position c. When the door body 30 continues to move in the closing direction after being closed to an opening angle of 0°, the above settings of the guiding track line K can apply resistance to the movement of the second hinge shaft 42 and the third hinge shaft 43 relative to the guiding groove, so that the door body 30 can stably stay in the closed state and can avoid the door body 30 from closing too hard and then rebounding and opening after being overly closed.

[0172] Assume that the door body 30 continues to move in the closing direction from the closed state. The second hinge shaft 42 has a tendency to move towards the sixth connection position f relative to the sixth guiding segment K6, and the third hinge shaft 43 has a tendency to move towards the third connection position c relative to the third guiding segment K3. Since in this embodiment, along the direction from the first connection position a towards the sixth connection position f, the distance between the sixth guiding segment K6 and the door sidewall 32 increases. The extending tendency of the sixth guiding segment K6 has the tendency that when keeping the first hinge shaft 41 moving along the guiding groove and the second hinge shaft 42 cooperating with the sixth guiding segment K6, the second hinge shaft 42 has a tendency to move away from the door sidewall 32. Similarly, both the first hinge shaft 41 and the third hinge shaft 43 have a tendency to move away from the door sidewall 32. And since along the direction from the fourth connection position d towards the third connection position c, the distance between the third guiding segment K3 and the door sidewall 32 decreases, it applies resistance to the movement of the third hinge shaft 43 to prevent the third hinge shaft 43 from moving. Similarly, when analyzing under the assumption of keeping the first hinge shaft 41 moving along the guiding groove and the third hinge shaft 43 cooperating with the third guiding segment K3, it can be known that the sixth guiding segment K6 applies resistance to the movement of the second hinge shaft 42 to prevent the second hinge shaft 42 from moving. To sum up, the above settings of the sixth guiding segment K6 and the third guiding segment K3 can limit the tendency of the first hinge shaft 41, the second hinge shaft 42 and the third hinge shaft 43 to continue moving in the closing direction relative to the guiding portion 60, so that the door body 30 can stably stay in the closed state and can avoid the door body 30 from closing too hard and then rebounding and opening after being overly closed.

[0173] As a configurable manner, when the door body 30 is closed, the first connection position a is located on the side of the central axis of the second hinge shaft 42 close to the door side wall 32 and far from the front wall 31 of the door. That is, when the door body 30 is closed, the area on the second hinge shaft 42 close to the door side wall 32 and far from the front wall 31 of the door cooperates with the first connection position a. Under the action of the sixth guiding section K6, while keeping the first hinge shaft 41 moving along the guiding groove and the second hinge shaft 42 cooperating with the sixth guiding section K6, the second hinge shaft 42 has a tendency to move in a direction away from the door side wall 32.

[0174] In some embodiments of the present application, the guiding track line S has a starting guiding position I0, a first guiding position I1, a second guiding position I2, a third guiding position I3, a fourth guiding position I4, a fifth guiding position I5, a sixth guiding position I6, a seventh guiding position I7, an eighth guiding position I8, a ninth guiding position I9, a tenth guiding position I10, and an eleventh guiding position I11.

[0175] In some embodiments of the present application, the fourth guiding position I4 is the end point of the guiding track line S close to the door side wall 32, and the eleventh guiding position I11 is the end point of the guiding track line S far from the door side wall 32; wherein, the starting guiding position I0 is located between the fourth guiding position I4 and the eleventh guiding position I11, and the starting guiding position I0, the first guiding position I1, the second guiding position I2, the third guiding position I3, and the fourth guiding position I4 are successively close to the door side wall 32. The fourth guiding position I4, 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 I10, and the eleventh guiding position I11 are successively far from the door side wall 32.

[0176] As a configurable manner, the sixth guiding position I6, the starting guiding position I0, the first guiding position I1, the fifth guiding position I5, the second guiding position I2, the third guiding position I3, and the fourth guiding position I4 are successively close to the door side wall 32.

[0177] 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.

[0178] During the opening process of the door body 30, the first hinge shaft 41 moves relative to the guiding groove, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guiding groove; the first central axis I moves relative to the guiding groove along the guiding track line S, and the second central axis E and the third central axis F move relative to the guiding groove.

[0179] Wherein, 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.

[0180] As a configurable manner, seeFigure 3 The shaft triangle IEF is an obtuse triangle; the angle FIE belongs to any value in the range of 172° to 178°; the angle IEF belongs to any value in the range of 3.5° to 4°. That is, the shaft triangle IEF is an obtuse triangle with one angle close to 180°. Among them, the distance between the first hinge shaft 41 and the second hinge shaft 42 is less than the distance between the first hinge shaft 41 and the third hinge shaft 43, and the distance between the second hinge shaft 42 and the third hinge shaft 43 is the largest. The above-mentioned relative positions of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 form 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 guide groove, increasing the assembly dimension of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 with respect to the door body 30 (guide groove). The shaft triangle IEF formed by the first hinge member is in surface fit with the guide groove surface of the second hinge member; that is, the fitting dimension of the surface fit between the first hinge member and the second hinge member effectively improves the fitting stability of the first hinge member and the second hinge member, and increases the opening stability of the door body 30. 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.

[0181] As an adjustable method, the longest side EF of the obtuse triangle-shaped shaft triangle IEF is located on the side of the vertex I of the shaft triangle IEF away from the access opening; that is, the straight line where the second hinge shaft 42 and the third hinge shaft 43 are located is on the side of the first hinge shaft 41 away from the access opening. The above setting enables the second hinge shaft 42 and the third hinge shaft 43 with the largest 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, and at the same time reducing the dimension of the shaft triangle IEF in the direction perpendicular to the access opening, which can meet the requirement of arranging the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 on the second extension plate 4022 to achieve the avoidance between the door corner 7 and the hinge plate 40.

[0182] In some embodiments of the present application, in the projection on the plane of the top wall of the box body, the straight line IE where the first central axis I and the second central axis E are located is parallel to the access opening. Additionally, optionally, 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.

[0183] In this embodiment, the guide groove and the guiding groove are arranged on the door body 30, and the first hinge shaft 41, the second hinge shaft 42, and the 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.

[0184] 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 guide groove; in this embodiment, for the convenience of description, the door body 30 (guide groove or guiding groove) is used as a static reference object, and the movement of the first hinge shaft 41 relative to the guiding groove and the movement of the second hinge shaft 42 or the third hinge shaft 43 relative to the guide groove are used to illustrate the specific process of opening the door body 30.

[0185] As Figures 8-33 shown, the movement of the shaft triangle IEF relative to the guide groove / guiding groove is equivalent to the movement of the box body 10 (hinge plate 40) relative to the door body 30.

[0186] 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 trajectory line S; the movement of the second hinge shaft 42 or the third hinge shaft 43 relative to the guide groove is equivalent to the movement of the second hinge shaft 42 or the third hinge shaft 43 relative to the guiding trajectory line K.

[0187] In this embodiment, the maximum opening angle Gmax of the refrigerator is used as an example for illustration, where Gmax>90°. Among them, in the following description, Gmax = G11 is used as an example for illustration. It should be noted that the maximum angle Gmax can be other angles and is not limited by Gmax = G11.

[0188] When the door body 30 is opened from the closed state to the maximum angle Gmax (= G11), when the door body 30 rotates to a specific angle during the opening process, the relative positions of the first hinge shaft 41 relative to the guiding groove and the relative positions of the second hinge shaft 421 and the third hinge shaft 43 relative to the guide groove are as follows:

[0189] Among them, φ represents the opening angle of the door body 30, and when the door body 30 is in the closed state, the opening angle φ = 0°;

[0190] As Figure 8As shown, when φ = 0°, 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 axis 41 is located in the area of the guiding groove close to the door side wall 32. The second hinge axis 42 cooperates with the first connection position a of the guiding track line K, and the third hinge axis 43 cooperates with the fourth connection position d of the guiding track line K. At this time (when φ = 0°), the second central axis E is located at E0 relative to the door body 30, and the third central axis F is located at F0 relative to the door body 30; that is, the axis triangle IEF is located at the initial triangle position I0E0F0 relative to the door body 30. The centroid plane P is located on the side of the initial triangle position I0E0F0 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.

[0191] As Figure 9 shown, when φ = G1 ∈ (0°, G2), the process of the door body 30 rotating from the closed state to G2; during the above opening process, the first central axis I moves along the guiding track line S in the direction close to the door side wall 32; the second hinge axis 42 cooperates with the first guiding section K1, and the second hinge axis 42 moves relative to the first guiding section K1 in the direction approaching from the first connection position a to the second connection position b; the third hinge axis 43 cooperates with the fourth guiding section K4, and the third hinge axis 43 moves relative to the fourth guiding section K4 in the 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 the direction close to the door side wall 32, the second hinge axis 42 moves relative to the guiding groove in the direction close to the door side wall 32 and the front door wall 31, and the third hinge axis 43 moves relative to the guiding groove in the direction close to the door side wall 32 and away from the front door wall 31.

[0192] Above, when the opening angle φ of the door body 30 is φ = G1 ∈ (0°, G2), the movement trends in this opening angle range 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 fourth guiding section K4 of the guiding track line K is different. Thus, when the opening angle φ ∈ (0°, G2), 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 9 and Figure 23 shown, taking φ = G1 ∈ (0°, G2) to represent the position in this opening angle range for comparison with when the door body 30 is opened to other states.

[0193] AsFigure 9 and Figure 23 As 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. Among them, the first guiding position I1 is on the side of the initial guiding position I0 close to the door side wall 32; the first guiding section K1 of the guiding track line K is matched with the second hinge axis 42, and the fourth guiding section K4 is matched with the third hinge axis 43. At this time (when φ = G1), 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. From the process of the door body 30 being opened from the closed state to G2, it can be known that there is φ = G`1. When φ = G1 ∈ (0°, G`1], the centroid plane P is on the side of the first triangle position I1E1F1 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 angle of the door body 30 is G1, the centroid plane P is not between the hinge axes. When φ = G1 ∈ (G`1, G2), the centroid plane P passes through the first triangle position I1E1F1; that is, 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 away from the front door wall 31. That is, when the opening angle of the door body 30 is not greater than G`1, the centroid plane P is not between the hinge axes; while when the opening angle of the door body 30 is greater than G`1, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0194] As Figure 10 and Figure 24 shown, when φ = G2, the door body 30 rotates and opens to G2; the first central axis I is located at the second guiding position I2 of the guiding track line S; among them, the second guiding position I2 is on the side of the first guiding position I1 close to the door side wall 32. The second hinge axis 42 is matched with the second connection position b of the guiding track line K; that is, the second hinge 42 moves to the position with the smallest distance from the door side wall 32. At the same time, the third hinge axis 43 is matched with the fourth guiding section K4. At this time (when φ = G2), 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 passes through the second triangle position I2E2F2. 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 away from the front door wall 31. That is, when the opening angle of the door body 30 is G2, 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.

[0195] As Figure 11As shown, when φ = G3 ∈ (G2, G4), the process of the door body 30 rotating and opening from G2 to G4; during the above opening process, the first central axis I moves along the guiding track line S towards the direction close to the door side wall 32. The second hinge axis 42 is matched with the second guiding section K2, and the second hinge axis 42 moves relative to the second guiding section K2 along the direction approaching from the second connection position b to the third connection position c; the third hinge axis 43 is matched with the fourth guiding section K4, and the third hinge axis 43 moves relative to the fourth guiding section K4 along the 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 and opening from G2 to G4, while the first hinge axis 41 moves relative to the guiding groove towards the direction close to the door side wall 32, the second hinge axis 42 moves relative to the guiding groove towards the direction away from the door side wall 32 and close to the front wall 31 of the door, and the third hinge axis 43 moves relative to the guiding groove continuously towards the direction close to the door side wall 32 and away from the front wall 31 of the door.

[0196] Above, when the opening angle φ = G3 ∈ (G2, G4) of the door body 30, the movement trends in this opening angle range 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 second guiding section K2 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 φ = G3 ∈ (G2, G4), 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 11 and Figure 25 shown, using φ = G3 ∈ (G2, G4) to represent the position within this opening angle range for comparison with when the door body 30 is opened to other states.

[0197] Such as Figure 11 and Figure 25As shown, when the door body 30 is opened to G3, the first central axis I is located at the third guiding position I3 of the guiding track line S; wherein, the third guiding position I3 is on the side of the second guiding position I2 closer to the door side wall 32; the second guiding section K2 of the guiding track line K is matched with the second hinge axis 42, and the fourth guiding section K4 is matched with the third hinge axis 43. At this time (when φ = G3), the second central axis E is at E3 relative to the door body 30, and the third central axis F is at F3 relative to the door body 30; that is, the axis triangle IEF is at the third triangle position I3E3F3 relative to the door body 30. During the process of the above-mentioned door body 30 rotating and opening from G2 to G4, the centroid plane P always passes through the third triangle position I3E3F3. 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, during the process of the door body 30 rotating and opening from G2 to 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.

[0198] As Figure 12 , Figure 26 shown, when φ = G4, 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; wherein, the fourth guiding position I4 is on the side of the third guiding position I3 closer to the door side wall 32, and is the end point position of the guiding track line S closer to the door side wall 32; that is, the first hinge axis 41 moves to the end point of the guiding groove closer to the door side wall 32. The second hinge axis 42 is matched with the second guiding section K2 of the guiding track line K, and the third hinge axis 43 is matched with the fourth guiding section K4. At this time (when φ = 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.

[0199] As Figure 13As shown, when φ = G5 ∈ (G4, G6), the process of the door body 30 rotating from G4 to G6; 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 second guiding section K2, and the second hinge axis 42 moves relative to the second guiding section K2 in a direction approaching from the second connection position b to the third connection position c; 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 G4 to G6, 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 door front 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 door front wall 31.

[0200] Above, when the opening angle φ = G5 ∈ (G4, G6) of the door body 30, the movement trends in this opening angle range 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 second guiding section K2 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 φ = G5 ∈ (G4, G6), 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 13 and Figure 27 shown, using φ = G5 ∈ (G4, G6) to represent the position within this opening angle range for comparison with when the door body 30 is opened to other states.

[0201] Such as Figure 13 and Figure 27As shown, when the door body 30 is opened to G5, the first central axis I is located at the fifth guiding position I5 of the guiding track line S; wherein, the fifth guiding position I5 is located on the side of the fourth guiding position I4 away from the door side wall 32; the second guiding section K2 of the guiding track line K is matched with the second hinge axis 42, and the fourth guiding section K4 is matched with the third hinge axis 43. At this time (when φ = G5), 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 triangle position I5E5F5 relative to the door body 30. During the process of the above-mentioned door body 30 rotating and opening from G4 to G6, the centroid plane P always passes through the fifth triangle position I5E5F5. 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, during the process of the door body 30 rotating and opening from G4 to 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.

[0202] As Figure 14 , Figure 28 shown, when φ = 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; wherein, the sixth guiding position I6 is located on the side of the fifth guiding position I5 away from the door side wall 32. The second hinge axis 42 is matched with the third connecting position c of the guiding track line K, and the third hinge axis 43 is matched with the fourth guiding section K4. As a settable manner, at this time, the third hinge axis 43 is matched with the fifth connecting position e. At this time (when φ = G6), 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 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 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 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.

[0203] In some embodiments of the present application, φ = G6 = 90°. That is, when the door body 30 is opened to 90°, the second hinge axis 42 is in contact and cooperation with the third connecting position c of the guiding track line K. It can be set that 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 I6E6 where the first central axis I and the second central axis E are located is perpendicular to the front door wall 31.

[0204] In this embodiment, along the direction of approaching the third connection position c from the second connection position b, the second guiding section K2 extends in the direction away from the door side wall 32 and towards the door front wall 31; and along the direction of approaching the fourth connection position d from the third connection position c, the third guiding section K3 extends in the direction away from the door side wall 32 and the door front wall 31; that is, along the direction of approaching the fourth connection position d from the second connection position b, the distance between the guiding track line K and the door front wall 31 first decreases and then increases, and the distance between the guiding track line K and the door front wall 31 is the smallest at the third connection position c. 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 door front wall, the pressure of the guiding groove on the second hinge shaft 42 is perpendicular to the door front wall 31, and there is a tendency for relative movement between the second hinge shaft 42 and the guiding groove in the direction parallel to the door front wall 31, and the distance between the third guiding section K3 and the door front wall 31 gradually increases along the direction of approaching the fourth connection position d from the third connection position c. When the door body 30 continues to be opened from 90°, the extension form of the third guiding section K3 has the tendency to prevent the relative movement between the second hinge shaft 42 and the guiding groove in the direction parallel to the door front wall 31 when the door body 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.

[0205] In some embodiments of the present application, when the door body 30 is opened to 90°, the second hinge shaft 42 is in interference fit with the guiding track line K.

[0206] In some embodiments of the present application, when the door body 30 is opened to 90°, the third hinge shaft 43 is in interference fit with the fourth guiding section K4.

[0207] As Figure 15 shown, when φ = G7 ∈ (G6, G8), the process of the door body 30 rotating and opening from G6 to G8. During the above opening process, the first central axis I moves along the guiding track line S in the direction away from the door side wall 32; the second hinge shaft 42 cooperates with the third guiding section K3, and the second hinge shaft 42 moves relative to the third guiding section K3 along the direction of approaching the fourth connection position d from the third connection position c; the third hinge shaft 43 cooperates with the fifth guiding section K5, and the third hinge shaft 43 moves relative to the fifth guiding section K5 along the direction of approaching the sixth connection position f from the fifth connection position e. That is, during the process of the door body 30 rotating and opening from G6 to G8, while the first hinge shaft 41 moves relative to the guiding groove in the direction away from the door side wall 32, the second hinge shaft 42 moves relative to the guiding groove in the direction away from the door side wall 32 and the door front wall 31, and the third hinge shaft 43 moves relative to the guiding groove in the direction towards the door side wall 32 and the door front wall 31.

[0208] As described above, when the opening angle φ = G7 ∈ (G6, G8) of the door body 30, the movement trends in this opening angle range are consistent; the only differences are: different opening angles, different positions of the first hinge axis 41 relative to the guiding trajectory line S, different positions of the second hinge axis 42 relative to the second guiding section K2 of the guiding trajectory line K, and different positions of the third hinge axis 43 relative to the fifth guiding section K5 of the guiding trajectory line K. Thus, when the opening angle φ = G7 ∈ (G6, G8), 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 15 and Figure 29 shown, taking φ = G7 ∈ (G6, G8) to represent the position within this opening angle range for comparison with other states when the door body 30 is opened.

[0209] As Figure 15 and Figure 29 shown, when the door body 30 is opened to G7, the first central axis I is located at the seventh guiding position I7 of the guiding trajectory 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; the third guiding section K3 of the guiding trajectory 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 φ = 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 above-mentioned 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, during the process of the door body 30 rotating from G6 to G8, 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 16 、 Figure 30As shown, when φ = G8, the door body 30 rotates and opens to G8; the first central axis I is located at the eighth guiding position I8 of the guiding track line S; wherein, the eighth guiding position I8 is located on the side of the seventh guiding position I7 away from the door side wall 32. The second hinge axis 42 cooperates with the third guiding section K3, and the third hinge axis 43 cooperates with the fifth guiding section K5. At this time (when φ = G8), the second central axis E is located at E8 relative to the door body 30, and the third central axis F is located at F8 relative to the door body 30; that is, the axis triangle IEF is located at the eighth triangle position I8E8F8 relative to the door body 30. The centroid plane P passes through the eighth triangle position I8E8F8; specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 away from the front door wall 31. That is, when the opening angle of the door body 30 is G8, 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] Combined with the settings of the door body 30 opening to various angles described above, in some embodiments of the present application, during the process of the door body 30 opening from the closed state to G8, the second hinge axis 42 and the third hinge axis 43 are always in contact and cooperate with the inner wall of the guiding groove. Additionally, at specific opening angles (0°, 90°), the second hinge axis 42 or the third hinge axis 43 is in interference fit with the guiding track groove, so that the door body 30 can be stably maintained in the corresponding state.

[0212] As Figures 17-18 shown, when φ ∈ (G8, G11), the process of the door body 30 rotating and opening from G8 to G11; during the above opening process, the first central axis I moves along the guiding track line S in the direction away from the door side wall 32; the second hinge axis 42 cooperates with the third guiding section K3, and the second hinge axis 42 moves relative to the third guiding section K3 in the direction approaching from the third connection position c to the fourth connection position d; the third hinge axis 43 cooperates with the fifth guiding section K5, and the third hinge axis 43 moves relative to the fifth guiding section K5 in the direction approaching from the fifth connection position e to the sixth connection position f. That is, during the process of the door body 30 rotating and opening from G8 to G11, while the first hinge axis 41 moves relative to the guiding groove in the direction away from the door side wall 32, the second hinge axis 42 moves relative to the guiding groove in the direction away from the door side wall 32 and the front door wall 31, and the third hinge axis 43 moves relative to the guiding groove in the direction approaching the door side wall 32 and the front door wall 31.

[0213] As described above, when the opening angle φ of the door body 30 ∈ (G8, G11), the movement trends in this opening angle range are consistent; the only differences are: different opening angles result in different positions of the first hinge axis 41 relative to the guiding track line S, different positions of the second hinge axis 42 relative to the second guiding section K2 of the guiding track line K, and different positions of the third hinge axis 43 relative to the fifth guiding section K5 of the guiding track line K. Thus, when the opening angle φ ∈ (G8, G11), selecting one opening angle can represent the relative positions of the first hinge axis 41 relative to the guiding groove, and the second and third hinge axes 42 and 43 relative to the guiding groove when the door body 30 is opened to the corresponding range. Specifically, as Figure 17 and Figure 31 shown, taking φ = G9 ∈ (G8, G11) and φ = G10 ∈ (G8, G11) to represent the positions within this opening angle range for comparison with other states when the door body 30 is opened; where G9 < G10. Since this angle range is large, two angles are selected for illustration to show the movement within this angle range.

[0214] As Figure 18 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 on the side away from the door side wall 32 of the eighth guiding position I8; the third guiding section K3 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 φ = G9), 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.

[0215] When the door body 30 is opened to G10, the first central axis I is located at the tenth guiding position I10 of the guiding track line S. Among them, the tenth guiding position I10 is on the side away from the door side wall 32 of the ninth guiding position I9; the third guiding section K3 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 φ = G10), the second central axis E is located at E10 relative to the door body 30, and the third central axis F is located at F10 relative to the door body 30; that is, the axis triangle IEF is located at the tenth triangular position I10E10F10 relative to the door body 30.

[0216] During the process of the door body 30 rotating from G8 to G11, the centroid plane P always passes through the axis triangle IEF. 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, during the process of the door body 30 rotating from G8 to G11, 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.

[0217] It should be noted that in some embodiments of the present application, during the process of the door body 30 rotating from G8 to G11, the third guiding section K3 of the guiding track line K cooperates with the second hinge axis 42 with a gap greater than 0 (i.e., the third guiding section K3 is separated from the second hinge axis 42), and the fifth guiding section K5 is in contact and cooperation with the third hinge axis 43.

[0218] As Figure 19 、 Figure 33 shown, when φ = G11, the door body 30 rotates and opens to G11. The first central axis I is located at the eleventh guiding position I11 of the guiding track line S; among them, the eleventh guiding position I11 is on the side of the tenth guiding position I10 away from the door side wall 32, and the eleventh guiding position I11 is the end point position of the guiding track line S at the end away from the door side wall 32. The second hinge axis 42 cooperates with the third guiding section K3, and the third hinge axis 43 cooperates with the fifth guiding section K5. At this time (when φ = G11), the second central axis E is located at E11 relative to the door body 30, and the third central axis F is located at F11 relative to the door body 30; that is, the axis triangle IEF is located at the eleventh triangle position I11E11F11 relative to the door body 30. The centroid plane P passes through the eleventh triangle position I11E11F11. 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 G11, 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.

[0219] In some embodiments of the present application, when the door body 30 opens to G11, the second hinge axis 42 and the third hinge axis 43 are both in contact and cooperation with the inner wall of the guiding groove.

[0220] In some embodiments of the present application, when the door body 30 is opened to G11, the first hinge shaft 41 is located at the end of the guiding groove away from the door side wall 32, and the third hinge shaft 43 is in contact and cooperation with the sixth connection position f of the guiding groove. In this embodiment, along the direction approaching from the sixth connection position f to the first connection position a, the sixth guiding section K6 extends in the direction approaching the door side wall 32 and the front wall 31 of the door. That is, along the direction from the rear wall of the door to the front wall of the door, the distance between the sixth guiding section K6 and the door side wall 32 gradually decreases; when the door body 30 is opened to G11, the third hinge shaft 43 is in interference fit with the end of the sixth guiding section K6 of the guiding groove away from the front wall 31 of the door. The above settings can enable the door body 30 to stably stay in the G11 state, facilitating the user to take and place items from the storage room after opening the door body 30 to G11; and preventing the door body 30 from being overly opened under the action of external force, resulting in damage to the hinge assembly. As an optional setting method, at this time, the third hinge shaft 43 is in interference fit with the sixth connection position f of the guiding groove.

[0221] Assume that the door body 30 continues to open from G11. The third hinge shaft 43 has a tendency to move in the direction approaching the first connection position a 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 from the sixth connection position f to the first connection position a, the sixth guiding section K6 extends in the direction approaching the door side wall 32 and the front wall 31 of the door, and the distance between the sixth guiding section K6 and the door side wall 32 decreases. Among them, the extension tendency of the sixth guiding section K6 enables the third hinge shaft 43 to have a tendency to move away from the door side wall 32 while keeping the first hinge shaft 41 moving along the guiding groove and the third hinge shaft 43 cooperating with the end of the sixth guiding section K6 away from the front wall 31 of the door (the end of the fifth guiding section K5 close to the front wall 31 of the door). 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 tendency of the third hinge shaft 43. Enabling the door body 30 to stably stay in the G11 state.

[0222] As an optional setting method, when the door body 30 is opened to G11, the third hinge shaft 43 is in interference fit with the end of the sixth guiding section K6 away from the front wall 31 of the door. Additionally, optionally, the second hinge shaft 42 is in interference fit with the third guiding section K3, further increasing the stability of the door body 30 to maintain its current state when opened to the maximum.

[0223] In some embodiments of the present application, when the door body 30 is opened to G11, the side of the third hinge shaft 43 close to the door side wall 32 is in interference fit with the end of the sixth guiding section K6 away from the door front wall 31. 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 it 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 away from the first hinge shaft 41 relative to the hinge axis direction.

[0224] As a settable manner, along the direction from the door rear wall to the door front wall, the distance between the sixth guiding section K6 and the door side wall 32 gradually decreases, and the rate of decrease in the distance between the sixth guiding section K6 and the door side wall 32 is denoted as λ6; the distance between the fifth guiding section K5 and the door side wall 32 gradually decreases, and the rate of decrease in the distance between the fifth guiding section K5 and the door side wall is denoted as λ5; λ5 > λ6. Combining that the fifth guiding section K5 protrudes towards the side away from the guiding centroid O, and the sixth guiding section K6 protrudes towards the side close to the guiding centroid O, so as to smoothly transition from the sixth connection position f to the first connection position a through the sixth guiding section K6.

[0225] As a settable setting, the above contact fits 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 Gmax (= G11) are all interference fits, so that the door body 30 can stop at its current state.

[0226] Above, 0° < G1 < G`1 < G2 < G3 < G4 < G5 < G6 < G7 < G8 < G9 < G10 < G11; G1, G2, G3, G4, G5, G6, G7, G8, G9, G10, G11 are successively denoted 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, the tenth angle G10, the eleventh angle G11. Gmax is the maximum angle that the door body 30 can be opened. In this embodiment, Gmax = G11. Optionally, G6 = 90°.

[0227] During the process of the door body 30 being opened from G6 to G11 above, while the first hinge shaft 41 moves away from the door side wall 32 relative to the guiding groove, the second hinge shaft 42 moves away from the door side wall 32 and the door front wall 31 relative to the guiding groove, and the third hinge shaft 43 moves towards the door side wall 32 and the door front wall 31 relative to the guiding groove.

[0228] Based on the analysis of the states at different angles when the door body 30 is opened as described above, during the process of the door body 30 being opened from the closed state to G`1, the centroid plane P is on the side of the axis triangle IEF 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. During the process of the door body 30 being opened from G`1 to G11, the centroid plane P passes through the axis triangle IEF; that is, the centroid plane P is 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. That is, when the opening angle of the door body 30 is not greater than G`1, the centroid plane P is not between the hinge axes; while when the opening angle of the door body 30 is greater than G`1, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0229] As a settable method, G`1:Gmax belongs to any value in the range of 0.8 to 1. As a settable method, G`1 belongs to 20° to 25°, and Gmax = G11 = 151°; it can be seen that during most of the opening stroke (83% - 87% of the stroke) of the door body 30, the centroid plane F is always 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 rail-changing movement during the opening of the door body 30 is smoother and more stable.

[0230] In summary, during the process of the door body 30 being opened from the closed state to Gmax = G11, the first hinge axis 41 moves linearly along the guide groove first in the direction close to the door side wall 32, and then in the direction away from the door side wall; the second hinge axis 42 and the third hinge axis 42 rotate clockwise relative to the guide groove throughout the process.

[0231] Among them, during the process of the door body 30 being opened from the closed state to G4, the first hinge axis 41 moves linearly along the guide groove in the direction close to the door side wall, the second hinge axis 42 moves relative to the first guide section K1 first, and then relative to the second guide section K2; the third hinge axis 43 moves relative to the fourth guide section K4;

[0232] During the process of the door body 30 being opened from G4 to G6, the first hinge axis 41 moves linearly along the guide groove in the direction away from the door side wall, the second hinge axis 42 moves relative to the second guide section K2; the third hinge axis 43 moves relative to the fourth guide section K4;

[0233] During the process of the door body 30 being opened from G6 to G11, the first hinge axis 41 moves linearly along the guide groove in the direction away from the door side wall, the second hinge axis 42 moves relative to the third guide section K3; the third hinge axis 43 moves relative to the fifth guide section K5.

[0234] In summary, φ=G4 and φ=G6 divide the opening of the door body 30 from the closed state to Gmax=G11 into three stages. The following uses the door body 30 (guide groove / guide groove) as a stationary reference object to explain the relative movement of the three stages from the perspective of the matching relationship between the first hinge shaft 41 and the guide groove, the second hinge shaft 42 and the third hinge shaft 43 and the guide groove:

[0235] The first stage, combined Figures 8-11 ,like Figure 21 and Figures 23-26 As shown, the door body 30 rotates from the closed state to open to G4.

[0236] In the first stage, the door body 30 opens from 0° to G4 through G1, G2, G3 in sequence. In this process, the first central axis I moves linearly along the guide track line S of the guide groove toward the direction close to the door side wall 32; the second hinge axis 42 first moves relative to the first guide section K1, and then moves relative to the second guide section K2; the third hinge axis 43 moves relative to the fourth guide section K4. When the door body 30 opens to G4, the first hinge axis 41 moves to the end point of the guide track line S close to the door side wall 32 - the fourth guide position I4.

[0237] In the above first stage of opening process, the door body 30 (guide groove / guiding groove) is used as a reference for explanation.

[0238] When the door body 30 is opened from 0° to G4, the axis triangle IEF rotates clockwise from I0E0F0 and moves to I1E1F1, I2E2F2, I3E3F3, and I4E4F4 (I0E0F0→I1E1F1→I2E2F2→I3E3F3→I4E4F4) in sequence toward the side wall 32 close to the door. Since the axis triangle IEF is set on the hinge plate 40, the axis triangle IEF represents the movement of the box body 10. It is concluded that: with the door body 30 (guide groove / guide groove) as a reference, the box body 10 opens clockwise relative to the door body 30 and moves a certain distance toward the direction close to the door side wall 32.

[0239] In summary, when the door body 30 is opened from the closed state to G4, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a displacement parallel to the door rear wall 33 and toward the door side wall 32 relative to the door body 30. According to the relativity of movement, with the box body 10 as a reference, when the door body 30 is opened from the closed state to G4, the door body 30 has a displacement parallel to the door rear wall 33 and toward the side away from the door side wall 32 relative to the box body 10.

[0240] The second stage, see Figure Figures 11-14 ,like Figure 22 and Figures 26-28 As shown, the door body 30 rotates and opens from G4 to G6.

[0241] In this second stage, the door body 30 is opened from G4 to G6 successively via G5. During this process, the first central axis I moves linearly along the guiding track line S of the guiding groove in a direction away from the door side wall 32; the second hinge axis 42 moves relative to the second guiding section K2; the third hinge axis 43 moves relative to the fourth guiding section K4. When the door body 30 is opened to G6, the second hinge axis 42 moves to the third connection position c.

[0242] In the opening process of the above second stage, the door body 30 (guiding groove / guide groove) is used as a reference object for description.

[0243] When the door body 30 is opened from G4 to G6, the shaft triangle IEF rotates clockwise from the position I4E4F4 and moves successively to the positions I5E5F5 and I6E6F6 on the side away from the door side wall 32 (I4E4F4 → I5E5F5 → I6E6F6). 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 / guide groove) as a reference object, the box body 10 opens clockwise relative to the door body 30 and moves a certain distance in a direction away from the door side wall 32.

[0244] In summary, during the process of the door body 30 being opened from G4 to G6, taking the door body 30 (guiding groove / guide groove) 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 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 G4 to G6, the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 relative to the box body 10.

[0245] In the third stage, as Figures 14-19 , as Figure 22 and Figures 28-33 shown, during the process of the door body 30 being rotated and opened from G6 to Gmax = G11.

[0246] In this third stage, the door body 30 is opened from G6 to G11 successively via G7, G8, G9, and G10. During this process, the first central axis I moves linearly along the guiding track line S of the guiding groove in a direction away from the door side wall 32; the second hinge axis 42 moves relative to the third guiding section K3; the third hinge axis 43 moves relative to the fifth guiding section K5. When the door body 30 is opened to G11, the third hinge axis 43 moves to the sixth connection position f.

[0247] In the opening process of the above third stage, the door body 30 (guiding groove / guide groove) is used as a reference object for description.

[0248] When the door body 30 is opened from G6 to G11, the shaft triangle IEF rotates clockwise from the position of I6E6F6 and moves successively to the positions of I7E7F7, I8E8F8, I9E9F9, I10E10F10, I11E11F11 on the side away from the door side wall 32 (I6E6F6 → I7E7F7 → I8E8F8 → I9E9F9 → I10E10F10 → I11E11F11). Since the shaft triangle IEF is arranged on the hinge plate 40, the shaft triangle IEF represents the movement of the box body 10. Then it can be obtained that: taking the door body 30 (guide groove / guide slot) as the reference object, the box body 10 opens clockwise relative to the door body 30 and moves a certain distance in the direction away from the door side wall 32.

[0249] In summary, during the process of the door body 30 being opened from G6 to G11, taking the door body 30 (guide groove / guide slot) as the reference object, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 relative to the door body 30. Combining the movement conditions of the above second stage and the third stage, 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 G6 to G11, the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 relative to the box body 10.

[0250] 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 the reference object, the displacement of the door body 30 is a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 or a displacement parallel to the door rear wall 33 and pointing to the door side wall 32. Among them, relative to the box body 10, the displacement of the door body 30 parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 is recorded as the first-direction displacement, and the displacement parallel to the door rear wall 33 and pointing to the door side wall 32 is recorded as the second-direction displacement. Among them, both the second-direction displacement and the first-direction displacement are parallel to the door rear wall 33, but their directions relative to the door side wall 32 are opposite.

[0251] Here, it needs to be supplemented and explained that "pointing to the door side wall 32" refers to the direction from the opposite end of the door body 30 to the door side wall 32 to the door side wall 32; "pointing to the side away from the door side wall 32" refers to the direction from the door side wall 32 to the opposite end of the door body 30 to the door side wall 32. In addition, it should be noted that the above first-direction displacement and 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.

[0252] Specifically, combining the above analysis of the first stage to the third stage, during the process of the door body 30 being opened from the closed state to G4 (<90°), in the decomposition of the displacement of the door body 30 relative to the box body 10, 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.

[0253] When the door body 30 is opened from G4 to G11 (> 90°), in the displacement decomposition of the door body 30 relative to the box body 10, the door body 30 has a second-direction displacement parallel to the door rear wall 33 and pointing to the door side wall 32.

[0254] See Figures 34-38 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 side wall (outer side). That is, in the displacement coordinate system AOB, the direction from the second body side wall to the first body side wall 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 back 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.

[0255] (1) As Figures 35-36 shown, when the door body 30 is 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 side wall 32, the door rear wall 33 and the front wall 31 also rotate counterclockwise during this stage of the opening process. In the plane of the top wall of the box body 10, along the direction from the second side edge N to the first side edge W (the door rear wall 33 points to the front wall 31), the door side wall 32 extends outward and forward; along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the door rear wall 33 extends inward and forward.

[0256] During the above opening process (from the closed state to 90°), the door side wall 32 starts to rotate counterclockwise from the state parallel 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 decreases and the angle between it and the reference plane M0 gradually increases; that is, during the process of the door body 30 being opened from the closed state to 90°, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends to the side away from the second body side wall and the pick-and-place opening. At the same time, as the opening angle of the door body 30 increases, the angle between the door rear wall 33 and the plane where the pick-and-place opening is located gradually increases, and the angle between the door rear wall 33 and the reference plane M0 gradually decreases; that is, during the process of the door body 30 being opened from the closed state to 90°, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the door rear wall 33 extends to the direction away from the first body side wall and the pick-and-place opening.

[0257] (1.1) As can be seen from the description of the displacement direction of the door body 30 relative to the box body 10 when the combined door body 30 is opened from the closed state to G4 (G4 < 90°): When the door body 30 is opened from the closed state to G4, 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 away from the door side wall 32, that is, the first-direction displacement points to the inner front side (inward and forward side) of the box body 10.

[0258] As Figure 35 shown, in the displacement coordinate system AOB, when the door body 30 is opened from the closed state to G4, the first-direction displacement of the door body 30 is in the second quadrant (A < 0, B > 0). Decompose the first-direction displacement along the A-axis and B-axis; the component displacement of the first-direction displacement on the A-axis is < 0, and the component displacement on the B-axis is > 0. That is, under the trajectory feature setting of the present invention, when the door body 30 is opened from the closed state to G4, in the displacement coordinate system AOB, the door body 30 has < 0 and > 0. From this, it can be concluded that relative to the box body 10, the door body 30 has a tendency to move along the negative direction of the A-axis and move in the positive direction of the B-axis; that is, when the door body 30 is opened from the closed state to G4 (G4 < 90°), the door body 30 has a tendency to move inward and forward relative to the box body 10.

[0259] (1.2) As can be seen from the description of the displacement direction of the door body 30 relative to the box body 10 when the door body 30 is opened from G4 (G4 < 90°) to G6 = 90°: When the door body 30 is opened from G4 to 90°, with the box body 10 as the reference object, the door body 30 has a second-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32, that is, the second-direction displacement points to the outer rear side (outward and backward side) of the box body 10.

[0260] As Figure 36 shown, in the displacement coordinate system AOB, when the door body 30 is opened from G4 to 90°, the second-direction displacement of the door body 30 is in the fourth quadrant (A > 0, B < 0). Decompose the second-direction displacement along the A-axis and B-axis; the component displacement of the second-direction displacement on the A-axis is > 0, and the component displacement on the B-axis is < 0. That is, under the trajectory feature setting of the present invention, when the door body 30 is opened from G4 to 90°, in the displacement coordinate system AOB, the door body 30 has > 0 and < 0. 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 from G4 to 90°, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0261] As Figure 37As 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.

[0262] Combined with the description of the displacement direction of the door body 30 relative to the box body 10 when the door body 30 is opened to 90°: when the door body 30 is opened to 90°, taking the box body 10 as a reference, the door body 30 has a second-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32, that is, the second-direction displacement points to the rear side (the backward side) of the box body 10.

[0263] As Figure 37 shown, in the displacement coordinate system AOB, the second-direction displacement of the door body 30 is along the B axis and points to the negative direction of the B axis. The second-direction displacement is decomposed into displacements on the A axis and the B axis; the component displacement of the second-direction displacement on the A axis is = 0, and the component displacement on the B axis is = <0. That is, under the trajectory feature setting of the present invention, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the door body 30 has = 0 and = <0. Thus, it can be concluded that: relative to the box body 10, the door body 30 has a tendency to move 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 backward relative to the box body 10.

[0264] (3) As Figure 38 shown, when the door body 30 rotates from 90° to G11, 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.

[0265] During the above opening process, the door side wall 32 starts to rotate counterclockwise from the state perpendicular to the reference plane M0, the angle between the door side wall 32 and the plane where the pick-and-place opening is located gradually increases and the angle between it and the reference plane M0 gradually decreases; that is, during the process of the door body 30 rotating from 90° to G11, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends to the side away from the second body side wall and 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 and the angle between it and the reference plane M0 gradually increases; that is, during the process of the door body 30 rotating from 90° to G11, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the door rear wall 33 extends to the direction away from the second body side wall and the pick-and-place opening.

[0266] In this embodiment, G4 < G6 = 90°; combining 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 opening from G6 = 90° to G11 as described above, it can be known that: during the process of the door body 30 opening from 90° to G11, taking the box body 10 as a reference, the door body 30 has a second-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32, that is, the second-direction displacement points to the inner rear side (inward and backward side) of the box body 10.

[0267] As Figure 38 shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from G6 = 90° to G11, the second-direction displacement of the door body 30 is located in the third quadrant (A < 0, B < 0). Decompose the second-direction displacement on the A-axis and the B-axis; the component displacement of the second-direction displacement on the A-axis is < 0, and the component displacement on the B-axis is < 0. That is, under the trajectory feature setting of the present invention, during the process of the door body 30 opening from G6 = 90° to G11, in the displacement coordinate system AOB, the door body 30 has < 0 and < 0. From this, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move along the negative direction of the A-axis and move towards the negative direction of the B-axis; that is, during the process of the door body 30 opening from G6 = 90° to G11, the door body 30 has a tendency to move inwards and backwards relative to the box body 10.

[0268] In summary, during the whole process of the door body 30 opening from the closed state to G11, relative to the box body 10, the movement of the door body 30 is divided into three stages, and the door body 30 has a tendency to move inwards first, then outwards, and then inwards.

[0269] 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 Gmax = G11 are used as representatives to illustrate the overall movement trend, but it can represent the movement trend in the corresponding range, and it can illustrate that the hinge assembly with the above trajectory features of the present invention can make the door body 30 have a tendency to move inwards → outwards → inwards during the opening process.

[0270] In this embodiment, when the door body 30 is in the first stage of opening, it has a tendency to move inward. Specifically, the first hinge shaft 41 moves a certain distance relative to the guiding groove towards the direction close to the door sidewall 32, and causes the door body 30 to move inward by a certain distance. While the first hinge shaft 41 moves relative to the guiding groove towards the direction close to the door sidewall 32, the second hinge shaft 42 moves relative to the guiding groove towards the direction away from the door sidewall 32 and close to the front door wall 31, and the third hinge shaft 43 moves relative to the guiding groove towards the direction close to the door sidewall 32 and away from the front door wall 31. The above settings are applicable to the scenario where the refrigerator is installed in an embedded manner in a cabinet. When the door body 30 is opened 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, and limit the distance that the first side edge W exceeds the reference plane M0 not to exceed the distance between the cabinet and the sidewall of the refrigerator body, effectively avoiding interference between the door body 30 and the cabinet 100 when the door body 30 is opened, further reducing the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of the cabinet 100 space. In addition, in this embodiment, during the process of the door body 30 being opened from the closed state to G4, while the door body 30 moves inward, it also moves forward by a certain distance, so that the door body 30 quickly moves away from the box body 10, effectively avoiding squeezing the door seal 5.

[0271] In this embodiment, when the door body 30 is in the second stage of opening, it has a tendency to move outward. Specifically, during the process of the door body 30 being opened from G4 to G6 (= 90°), the first hinge shaft 41 moves a certain distance relative to the guiding groove towards the direction away from the door sidewall 32, and causes the door body 30 to move outward by a certain distance. While the first hinge shaft 41 moves relative to the guiding groove towards the direction away from the door sidewall 32, the second hinge shaft 42 moves relative to the guiding groove towards the direction away from the door sidewall 32 and close to the front door wall 31, and the third hinge shaft 43 continues to move relative to the guiding groove towards the direction close to the door sidewall 32 and away from the front door wall 31. The above settings enable the door body 30 to move outward during the process of opening to 90°, so as to reduce the occlusion of the door body 30 on the access opening, facilitate the taking and placing of items, and also be able to increase the lateral width of the drawer and improve the space utilization rate of the drawer on the premise of ensuring that the drawer placed in the storage room can be pulled out.

[0272] In this embodiment, the second stage is set on the premise of the inward 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.

[0273] It should be noted that in some embodiments of the present application, the above-mentioned setting in the second stage can be set independently, and it is not restricted by the inward movement setting of the door body 30 during the process of the door body 30 in the above-mentioned first stage being opened from the closed state to G4; the setting of the door body 30 being opened from the closed state to G4 in cooperation with the above-mentioned second-stage setting can be different from the setting in the above-mentioned first stage. For example, it can be set that during the process of the door body 30 being opened from the closed state to G4, the door body 30 rotates around the first hinge axis 41. Additionally, it can be set that during the process of the door body 30 being opened from the closed state to G4, the door body 30 has a tendency to move outward.

[0274] In this embodiment, the door body 30 has a tendency to move inward during the third stage of opening; specifically, during the process of the door body 30 being opened from G6 (=90°) to G11, the first hinge axis 41 moves a certain distance relative to the guiding groove in a direction away from the door side wall 32, and causes the door body 30 to move inward a certain distance. 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 the front door wall 31, and the third hinge axis 43 moves relative to the guiding groove in a direction close to the door side wall 32 and the front door wall 31. The above settings are applicable to the scenario of the refrigerator being installed in an embedded manner in a cabinet, which can reduce the limitation of the maximum opening angle that the cabinet can impose on the door body 30, and enable the door body 30 of the refrigerator installed in the cabinet to have a larger maximum opening angle.

[0275] In this embodiment, the third stage is set on the premise of the inward movement of the door body 30 in the above-mentioned first stage and the outward movement of the door body 30 in the second stage, which can take into account the different requirements of the three stages simultaneously and effectively increase the flexible applicability of the refrigerator.

[0276] It should be noted that in some embodiments of the present application, the above-mentioned setting in the third stage can be set independently, and it is not restricted by the inward movement setting of the door body 30 during the process of the door body 30 in the above-mentioned first stage being opened from the closed state to G4, nor is it restricted by the outward movement setting of the door body 30 during the process of the door body 30 being rotated and opened from G4 to G6 in the above-mentioned second stage. The setting of the door body 30 being opened from the closed state to G4 in cooperation with the above-mentioned third-stage setting can be different from the setting in the above-mentioned first stage; similarly, the setting of the door body 30 being opened from G4 to G6 in cooperation with the above-mentioned third-stage setting can be different from the setting in the above-mentioned second stage.

[0277] Combined with Figures 39-49As shown, 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 dashed line). During this rotational movement, 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; and 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; and the side sealing edge H is located at H relative to the box body 10. As Figure 39 In [the figure], the position where the door body 30 represented by the dashed line is located is the position reached when the door body 30 simply rotates around the first central axis I (I0) relative to the door body 30 when the door body 30 is closed to G1; the position where the door body 30 represented by the solid line is located is the position reached when it is rotated and opened to G1 in the setting manner of the present invention; Figure 40 In [the figure], the position where the door body 30 represented by the dashed line is located is the position reached when the door body 30 is rotated and opened to G1 in the rotation manner of the present invention, and then simply rotates around the first central axis I (the first central axis I (I1) in the previous state relative to the door body 30 when the door body 30 is opened to G1) as the central axis to G2; the position where the door body 30 represented by the solid line is located is the position reached when it is rotated and opened to G2 in the setting manner of the present invention; similarly Figures 41-49 It is a schematic diagram of the position comparison of the above two different opening methods at different opening angles.

[0278] By comparing the setting of the present invention with the method of simply rotating the door body 30 around the first central axis I in its previous state, it can be known that:

[0279] During the process of the door body 30 being opened from the closed state to G4, in this application, the position W of the first side edge is always 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 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 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 G4, the door body 30 has a tendency to move inward and forward.

[0280] During the process of the door body 30 being opened from G4 to G6, in this application, the position W of the first side edge is always 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 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 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 G4 to G6, the door body 30 has a tendency to move outward and backward.

[0281] When the door body 30 is opened from G6 to G11, 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 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 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 the access opening. That is, when the door body 30 is opened from G6 to G11, the door body 30 has a tendency to move inward and backward.

[0282] The movement tendencies in the above stages are consistent with those in the analysis of the foregoing stages.

[0283] It should be noted that the comparison between the position of the door body 30 in the current state of the present invention and the position where the assumed door body 30 is simply rotated 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 tendency of the door body 30 relative to the previous state during the opening process of the door body 30 in the present invention. Here, only some selected angles are used for comparison and explanation to present and illustrate the movement tendency when the door body 30 is opened.

[0284] 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 move the door body 30 inward or outward in different stages; the length of the guiding trajectory line K described above is not limited by all the above stages; it can be set to have the movement characteristics of at least one of the stages.

[0285] In some embodiments of the present application, in combination with Figures 8-20 as shown, a first reference plane M1 and a second reference plane M2 are also defined. Among them, as shown in Figure 20 the first reference plane M1 is a plane parallel to the reference plane M0 and perpendicular to the plane where the access opening is located. The first reference plane M1 is the plane 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 room is located. The first reference plane M1 and the second reference plane M2 do not move along with the opening process of the door body 30 relative to the box body 10, and are reference planes that remain stationary relative to the box body 10.

[0286] 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 close to the second reference plane M2, and then moves in a direction close to the first reference plane M1 and the second reference plane M2.

[0287] During the opening process of the door body 30, the second side edge N moves along with the opening of the door body 30, and its movement trajectory is recorded as the second side 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 second side edge N first moves in the direction close to the first reference plane M1 and the second reference plane M2, and then moves in the direction close to the first reference plane M1 and away from the second reference plane M2.

[0288] 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 in the direction close to the first reference plane M1 and the second reference plane M2, and then moves in the direction close to the first reference plane M1 and away from the second reference plane M2.

[0289] Among them, 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, when the door body 30 is opened from the closed state to the angle G0, the second side edge N is located on the side of the side sealing edge H close to the first body side wall. And when the door body 30 is opened from the angle G0 to G11, the second side edge N is located on the side of the side sealing edge H away from the first body side wall. In some embodiments of the present application, the maximum opening angle that the door body 30 can open can reach 150°. When the refrigerator is not placed in the cabinet in an embedded manner, the hinge assembly with the trajectory characteristics in this embodiment makes the maximum opening angle of the door body 30 larger. It can be set that G0 belongs to any value in the range of 123° to 127°.

[0290] Embodiment Two

[0291] The difference between this Embodiment Two and Embodiment One is that in this embodiment, the stage where the door body 30 moves inward from the closed state to G4 in the first stage is not set. Specifically, the first hinge member in this embodiment is the same as the setting in Embodiment One, and will not be elaborated here. As Figure 50 shown, in this Embodiment Two, the positions of the guiding portion 60 and the guiding portion 50 when the door body 30 is closed can be the same as the corresponding positions of the guiding portion 60 and the guiding portion when the door body 30 in Embodiment One is opened to any angle within G2 to G5. For the convenience of description, take the position of the guiding portion 60 when the door body 30 is closed being the same as the position of the guiding portion 60 when the door body 30 in Embodiment One is opened to G4, and the position of the guiding portion 50 when the door body 30 is closed being the same as the position of the guiding portion 50 when the door body 30 in Embodiment One is opened to G4 as an example for description, but it should be noted that the setting of this embodiment is not limited by this G4.

[0292] Specifically, in this embodiment, the guiding portion 60 on the door body 30 rotates counterclockwise by G4 relative to the guiding portion 60 in the first embodiment, and the guiding portion 50 on the door body 30 rotates counterclockwise by G4 relative to the guiding portion 50 in the first embodiment.

[0293] Compared with the arrangement where the guiding portion 50 is parallel to the front wall 31 of the door in the first embodiment, in the second embodiment, the included angle between the guiding portion 50 and the front wall 31 of the door is G4; and the guiding portion 50 extends from its end close to the side wall 32 of the door towards the direction away from the side wall 32 of the door and close to the front wall 31 of the door. Correspondingly, along the direction from the rear wall 33 of the door to the front wall 31 of the door, the distance between the guiding track line S and the side wall 32 of the door increases linearly. It should be noted that in this embodiment, the included angle between the guiding portion 50 and the front wall 31 of the door is not limited to being set as G4. Optionally, the included angle between the guiding track line S and the front wall 31 of the door belongs to any value within 58° - 88°; to effectively control the angular range of the outward movement of the door body 30 in the initial stage during the opening process.

[0294] For unified description, the guiding positions on the guiding track line S are the same as those in the first embodiment. The fourth guiding position I4 is the end point position of the guiding track line S close to the side wall 32 of the door, and the eleventh guiding position I11 is the end point position of the guiding track line S away from the side wall 32 of the door; the eleventh guiding position I11 is located on the side of the fourth guiding position I4 away from the side wall 32 of the door and close to the front wall 31 of the door, 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 fourth guiding position I4, 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 I10, and the eleventh guiding position I11 are successively away from the side wall 32 of the door and close to the front wall 31 of the door.

[0295] Similar to Embodiment 1, 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, and a sixth guiding segment K6 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 of the sixth guiding segment K6 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, and the connection point of the fifth guiding segment K5 and the sixth guiding segment K6 is denoted as the sixth connection position f. In this embodiment, the guiding groove surrounds its guiding centroid O, and the first guiding segment K1, the second guiding segment K2, the third guiding segment K3, the fourth guiding segment K4, and the fifth guiding segment K5 all protrude away from the guiding centroid O; the sixth guiding segment K6 protrudes towards the guiding centroid O to enable the guiding track line K to smoothly transition from the fifth connection position e to the first connection position a. It should be noted that in this embodiment, the guiding portion 50 and the guiding portion 60 are rotated by a corresponding angle with respect to their relationship with the door body 30 in Embodiment 1, resulting in a change in the positional relationship between the guiding portion 50 and the guiding portion 60 and the door side wall 32 and the door front wall 31 of the door body 30 in this Embodiment 2 compared to Embodiment 1 (see Figure 50 ), which will not be elaborated here.

[0296] In this Embodiment 2, when the door body 30 is closed, the first hinge shaft 41 is located at the fourth guiding position I4 close to the door side wall 32 of the guiding track line S, and the second hinge shaft 42 cooperates with the second guiding segment K2; the third hinge shaft 42 cooperates with the fourth guiding segment K4.

[0297] In this Embodiment 2, the first connection position a is located on the side of the fourth guiding position I4 close to the door rear wall 33. The second connection position b is located on the side of the first connection position a close to the door side wall 32 and the door front wall 31; in this embodiment, the second connection position b is located on the side of the fourth guiding position I4 close to the door rear wall 33 and the door side wall 32.

[0298] The third connection position c is located on the side of the second connection position b close to the door front wall 31 and away from the door side wall 32; in this embodiment, the third connection position c is located on the side of the first connection position a close to the door side wall 32;

[0299] The fourth connection position d is located on the side of the third connection position c away from the door rear wall 33 and the door side wall 32, and the fourth connection position d is on the side of the first connection position a away from the door side wall 33.

[0300] The fifth connecting position e is located on the side of the fourth connecting position d close to the rear wall 33 of the door and far from the side wall 32 of the door; in this embodiment, the fifth connecting position e is located on the side of the first connecting position a close to the rear wall 33 of the door.

[0301] The sixth connecting position f is located on the side of the fifth connecting position e close to the front wall 31 and the side wall 32 of the door. In this embodiment, the sixth connecting position f is located on the side of the first connecting position a close to the rear wall 33 of the door and far from the side wall 33 of the door. As an optional setting method, the sixth connecting position f is located on the side of the fourth connecting position d close to the side wall 32 and the rear wall 33 of the door.

[0302] That is, in the projection on the plane where the front wall 31 of the door is located, the second connecting position b, the third connecting position c, the first connecting position a, the sixth connecting position f, the fourth connecting position d, and the fifth connecting position e are successively far from the side wall 32 of the door. In this embodiment, in the projection on the plane where the front wall 31 of the door is located, relative to the first connecting position a, the third connecting position c is closer to the second connecting position b.

[0303] As an optional setting method, in the projection on the plane where the front wall 31 of the door is located, the third connecting position c is adjacent to the second connecting position b. Optionally, in the projection on the plane where the front wall 31 of the door is located, the distance between the third connecting position c and the second connecting position b is less than 4 mm; the distance between the first connecting position a and the second connecting position b is less than 12 mm.

[0304] In the projection on the plane where the side wall 32 of the door is located, the fourth connecting position d, the third connecting position c, the second connecting position b, the first connecting position a, the sixth connecting position f, and the fifth connecting position e are successively far from the front wall 31 of the door.

[0305] 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. With the same principle as described in Embodiment 1, when the door body 30 is in the closed state in this Embodiment 2, the first central axis I is located at the fourth guiding position I4, the second central axis E is located at E4 relative to the door body 30, and the second central axis F is located at F4 relative to the door body 30.

[0306] As an optional setting method, when the door body 30 is closed, the second hinge shaft 42 is in interference fit with the second guiding section K2, and the third hinge shaft 43 is in interference fit with the fourth guiding section K4; this prevents the door body 30 from continuing to move in the closing direction from the closed state, can avoid the door body 30 being over-closed due to excessive force and then rebounding and opening; and enables the door body 30 to stably stay in the closed state, increasing the stability of the door body 30 in the closed state.

[0307] In this Embodiment 2, the opening angles of the door body 30 are denoted as Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8. As Figures 50-59As shown in the figure, in combination with the relevance between the second embodiment and the first embodiment, the movement process of the door body 30 opening is described from the following 8 aspects. Among them, Q0 = 0° = G4 - G4, Q1 = G5 - G4, Q2 = G6 - G4, Q3 = G7 - G4, Q4 = G8 - G4, Q5 = G9 - G4, Q6` = 90°, Q6 = G10 - G4, Q7 = G11 - G4. It should be noted that the description of the angle relationship between the second embodiment and the first embodiment is only for corresponding illustration of the movement situation in the second embodiment, and the angles in the second embodiment are not limited by the angle relationship in the above two embodiments.

[0308] See Figure 50 , when the door body 30 is closed, Q0 = 0°. When 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.

[0309] See Figure 51 , when the door body 30 is opened to Q1 = G5 - G4, 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 triangle position I5E5F5 relative to the door body 30.

[0310] See Figure 52 , when the door body 30 is opened to Q2 = G6 - G4, 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 triangle position I6E6F6 relative to the door body 30. Among them, Q2 < 90°.

[0311] See Figure 53 , when the door body 30 is opened to Q3 = G7 - G4, 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 triangle position I7E7F7 relative to the door body 30.

[0312] See Figure 54 , when the door body 30 is opened to Q4 = G8 - G4, 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 triangle position I8E8F8 relative to the door body 30.

[0313] See Figure 55When the door body 30 is opened to Q5=G9-G4, the first center axis I moves to the ninth guide position I9 of the guide trajectory line S, the second center axis E is located at E9 relative to the door body 30, and the third center 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.

[0314] See also Figure 56 When the door body 30 is opened to Q6`=90°, the first center axis I moves to the guiding position where I6` of the guiding trajectory line S is located, the second center axis E is located at E6` relative to the door body 30, and the third center axis F is located at F6` relative to the door body 30; that is, the axis triangle IEF is located at the triangular position defined by I6`E6`F6` relative to the door body 30.

[0315] See also Figure 57 When the door body 30 is opened to Q6=G10-G4, the first center axis I moves to the tenth guide position I10 of the guide trajectory line S, the second center axis E is located at E10 relative to the door body 30, and the third center axis F is located at F10 relative to the door body 30; that is, the axis triangle IEF is located at the tenth triangle position I10E10F10 relative to the door body 30.

[0316] See also Figure 58 When the door body 30 is opened to Q7=G11-G4, the first center axis I moves to the eleventh guide position I11 of the guide trajectory line S, the second center axis E is located at E11 relative to the door body 30, and the third center axis F is located at F11 relative to the door body 30; that is, the axis triangle IEF is located at the eleventh triangle position I11E11F11 relative to the door body 30.

[0317] The principle is the same as that in the first embodiment. It can be concluded that in the second embodiment, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 and a displacement parallel to the door side wall 32 and pointing to the door front wall 31 relative to the door body 30. According to the relativity of movement, with the box body 10 as a reference, in the process of the door body 30 opening from the closed state to the maximum angle, the door body 30 has a displacement parallel to the door rear wall 33 and pointing to its door side wall 32 and a displacement parallel to the door side wall 32 and pointing to the side away from the door front wall 31 relative to the box body 10.

[0318] In the same embodiment as in the first embodiment, the displacement parallel to the door rear wall 33 and toward the door side wall 32 relative to the box body 10 is recorded as the second direction displacement. In the second embodiment, the displacement parallel to the door side wall 32 and toward the side away from the door front wall 31 is recorded as the third direction displacement.

[0319] Based on the description of the direction pointing to the door side wall 32 or away from the door side wall 32 in the first embodiment, it should be supplemented that "pointing to the side away from the front door wall 31" refers to the direction from the front door wall 31 to the back door wall 33. In addition, it should be noted that the above second-direction displacement and third-direction displacement are both instantaneous relative displacements to illustrate the current movement direction of the door body 30 relative to the box body 10.

[0320] Hereinafter, based on the same principle as in the first embodiment, a displacement coordinate system AOB stationary relative to the box body 10 is established, and the movement trend of the door body 30 is described in the displacement coordinate system AOB.

[0321] (1) As Figures 60-61 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 side wall 32, the door back wall 33, and the front door wall 31 also rotate 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 (from the door back wall 33 to the front door wall 31), the door side wall 32 extends outward and forward; along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the door back wall 33 extends inward and forward.

[0322] During the above opening process (from the closed state to 90°), the door side wall 32 starts to rotate counterclockwise from the state parallel to the reference plane M0, and the angle between the door side wall 32 and the plane of the access opening gradually decreases and the angle between it and the reference plane M0 gradually increases; that is, during the process of the door body 30 being opened from the closed state to 90°, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends toward the side away from the second body side wall and the access opening. At the same time, as the opening angle of the door body 30 increases, the angle between the door back wall 33 and the plane of the access opening gradually increases, and the angle between the door back wall 33 and the reference plane M0 gradually decreases; that is, during the process of the door body 30 being opened from the closed state to 90°, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the door back wall 33 extends toward the side away from the first body side wall and the access opening.

[0323] (1.1) Combining the description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 being opened from the closed state to Q2, it can be known that during the process of the door body 30 being opened from the closed state to Q2, taking the box body 10 as a reference, the door body 30 has a second-direction displacement parallel to the door back wall 33 and pointing to the door side wall 32 and a third-direction displacement parallel to the door side wall 32 and pointing to the side away from the front door wall 31; that is, in this opening stage, the second-direction displacement points to the outer rear side (outward and backward side) of the box body 10, and the third-direction displacement points to the inner rear side (inward and backward side) of the box body 10.

[0324] like Figure 60 As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the closed state to Q2, the second direction displacement of the door body 30 is located in the fourth quadrant (A>0, B<0), and the third direction displacement is located in the third quadrant (A<0, B<0). The second direction displacement and the third direction displacement are decomposed on the A axis and the B axis respectively; the sub-displacement of the second direction displacement on the A axis is>0, and the sub-displacement on the B axis is<0; the sub-displacement of the third direction displacement on the A axis is<0, and the sub-displacement on the B axis is<0. Among them, under the trajectory feature setting of the present invention, there is; then, =+>0, =+<0. That is, under the trajectory feature setting of the present invention, during the process of the door body 30 opening from the closed state to Q2, in the displacement coordinate system AOB, the door body 30 has two displacement components of>0 and<0. 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 negatively toward the B axis; that is, in the process of the door body 30 opening from the closed state to Q2, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0325] On the contrary, when the door body 30 is closed, during the process of the door body 30 being closed at the angle Q2, the second direction displacement is parallel to the door rear wall 33 and points to the side away from the door side wall 32, and the third direction displacement is parallel to the door side wall 32 and points to the door front wall 31;

[0326] The displacement of the second direction displacement on the A axis is , and the displacement of the third direction displacement on the A axis is , and the displacement of the B axis is ; under the trajectory characteristics of the present invention, = + < 0; = + > 0. That is, in the process of the door body 30 closing at the angle Q2, the door body 30 has a tendency to move in the negative direction along the A axis and move in the positive direction of the B axis relative to the box body 10; that is, in the process of the door body 30 closing at the angle Q2, the door body 30 has a tendency to move inward relative to the box body 10.

[0327] (1.2) 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 opening from Q2 to Q6`=90°, it can be known that: during the process of the door body 30 opening from Q2 to Q6`=90°, with the box body 10 as a reference, the door body 30 has a second directional displacement parallel to the door rear wall 33 and pointing to the door side wall 32, and a third directional displacement parallel to the door side wall 32 and pointing to the side away from the door front wall 31; that is, in this opening stage, the second directional displacement points to the outer rear side of the box body 10 (towards the outward and rearward side), and the third directional displacement points to the inner rear side of the box body 10 (towards the inward and rearward side).

[0328] like Figure 61As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from Q2 to Q6`=90°, the second directional displacement of the door body 30 is located in the fourth quadrant (A>0, B<0), and the third directional displacement is located in the third quadrant (A<0, B<0). The second directional displacement and the third directional displacement are decomposed on the A-axis and the B-axis respectively; the sub-displacement of the second directional displacement on the A-axis is>0, and the sub-displacement on the B-axis is<0; the sub-displacement of the third directional displacement on the A-axis is<0, and the sub-displacement on the B-axis is<0. Among them, under the trajectory feature setting of the present invention, there is; then, =+<0, =+<0. That is, under the trajectory feature setting of the present invention, during the process of the door body 30 opening from Q2 to Q6`=90°, in the displacement coordinate system AOB, the door body 30 has two displacement components of <0 and <0. It can be concluded that: relative to the box body 10, the door body 30 has a tendency to move negatively along the A axis and negatively toward the B axis; that is, in the process of the door body 30 opening from the closed state to Q2, the door body 30 has a tendency to move inward and backward relative to the box body 10.

[0329] (2) Figure 62 As shown, when the door body 30 is opened to 90°, the door side wall 33 is parallel to the plane where the access port is located, and is perpendicular to the reference plane M0; at this time, the door rear wall 33 is parallel to the reference plane M0, and is perpendicular to the plane where the access port is located. That is, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends from inside to outside, and the door rear wall 33 extends from back to front.

[0330] When the door body 30 is opened to 90°, with the box body 10 as a reference, the door body 30 has a second directional displacement parallel to the door rear wall 33 and pointing to the door side wall 32, and a third directional displacement parallel to the door side wall 32 and pointing to the side away from the door front wall 31; that is, at this opening angle, the second directional displacement points to the rear side of the box body 10, and the third directional displacement points to the inner side of the box body 10.

[0331] like Figure 62 As shown, in the displacement coordinate system AOB, the second displacement of the door body 30 is along the B axis and points to the negative direction of the B axis, and the third displacement is along the A axis and points to the negative direction of the A axis. The sub-displacement of the second displacement on the A axis is =, and the sub-displacement on the B axis is =<0; the sub-displacement of the third displacement on the A axis is =<0, and the sub-displacement on the B axis is =0. Among them, =+=<0, =+=<0. That is, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the door body 30 has two displacement components of <0 and <0; from this, it can be concluded that: relative to the box body 10, the door body 30 has a tendency to move along the negative direction of the A axis and move toward the negative direction of the B axis; that is, when the door body 30 is opened to 90°, the door body 30 has a tendency to move inward and backward relative to the box body 10.

[0332] (3) Figure 63As shown, when the door body 30 is rotated 90 degrees to open to Q7, the door body 30 rotates counterclockwise relative to the box body 10, and the door side wall 32 also rotates counterclockwise during the opening process at this stage. In the plane where the top wall of the box body 10 is located, the door side wall 32 extends outward and backward along the direction from the second side edge N to the first side edge W; along the direction from the door side wall 32 to the opposite end of the door body 30 and the door rear wall 33 extends outward and forward.

[0333] In 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 access port is located gradually increases, and the angle between the door side wall 32 and the reference plane M0 gradually decreases; that is, in the process of the door body 30 rotating from 90° to open to Q7, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends away from the second body side wall and close to the access port. At the same time, the angle between the door rear wall 33 and the plane where the access port is located gradually decreases, and the angle between the door rear wall 33 and the reference plane M0 gradually increases; that is, in the process of the door body 30 rotating from 90° to open to Q7, relative to the box body 10, along the direction from the door side wall 32 to the end of the door body 30 opposite to the door side wall 32, the door rear wall 33 extends away from the second body side wall and the access port.

[0334] In the process of the door body 30 opening from 90° to Q7, with the box body 10 as a reference, the door body 30 has a second directional displacement parallel to the door rear wall 33 and pointing to the door side wall 32, and a third directional displacement parallel to the door side wall 32 and pointing to the side away from the door front wall 31; that is, in this opening stage, the second directional displacement points to the inner rear side of the box body 10 (the inward and rearward side), and the third directional displacement is toward the inner front side of the box body 10 (the inward and front side).

[0335] like Figure 63 As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from 90° to Q7, the second direction displacement of the door body 30 is located in the third quadrant (A<0, B<0), and the third direction displacement is located in the second quadrant (A<0, B>0). The second direction displacement and the third direction displacement are decomposed on the A axis and the B axis respectively; the sub-displacement of the second direction displacement on the A axis is <0, and the sub-displacement on the B axis is <0; the sub-displacement of the third direction displacement on the A axis is <0, and the sub-displacement on the B axis is >0. Among them, under the trajectory feature setting of the present invention, there is; then, =+<0, =+<0. That is, under the trajectory feature setting of the present invention, during the process of the door body 30 opening from 90° to Q7, in the displacement coordinate system AOB, the door body 30 has two displacement components of <0 and <0. 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 in the negative direction toward the B axis; that is, in the process of opening the door body 30 from the closed state to 90°, the door body 30 has a tendency to move inward and backward relative to the box body 10.

[0336] In summary, during the entire process of the door body 30 being opened from the closed state to Q7, relative to the box body 10, the movement of the door body 30 is divided into two stages, and the door body 30 has a tendency to move outwards first and then inwards.

[0337] Similar to 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 Gmax = Q7 are used as representatives to illustrate the overall movement trend. However, it can represent the movement trend within 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 moving outwards first and then inwards (outwards → inwards) during the opening process.

[0338] In the second embodiment, the door body 30 has a tendency to move outwards in the first stage of opening. Specifically, as a settable manner, during the process of the door body 30 being rotated and opened from the closed state to Q2, 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 away from the door side wall 32 and 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. As a settable manner, during the above opening process, the third hinge shaft 43 moves relative to the guiding groove away from the door front wall 31 and towards the door side wall 32.

[0339] In the second embodiment, the door body 30 has a tendency to move inward during the second stage of opening; that is, the door body 30 has a tendency to move inward during the continuous opening process from Q2. Specifically, as a settable method, during the process of the door body 30 opening from Q2 to Q7, while the first hinge shaft 41 moves relative to the guiding groove away from the door sidewall 32 and towards the door front wall 31, the second hinge shaft 42 moves relative to the guiding groove away from the door sidewall 32 and towards the door front wall 31, and the third hinge shaft 43 moves relative to the guiding groove towards the door sidewall 32. As a settable method, during the opening process of the second stage, the third hinge shaft 42 moves relative to the guiding groove first away from the door front wall 31 and then towards the door front wall 31. The above setting of the inward movement of the door body 30 during the opening process is applicable to the scenario of the embedded 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 inward, which can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, and limit the distance of the first side edge W exceeding the reference plane M0 not to exceed the distance between the cabinet and the side wall of the refrigerator body, effectively avoiding the interference between the door body 30 and the cabinet 100 when the door body 30 is opened, and further reducing the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of the cabinet 100 space. On the other hand, during the process of the door body 30 opening to the maximum angle in the second embodiment, the inward movement can reduce the limitation of the cabinet on the maximum opening angle of the door body 30, so that the maximum opening angle of the door body 30 of the refrigerator installed in the cabinet can be larger.

[0340] It should be noted that the first stage and the second stage in the second embodiment can be set separately and are not restricted by the movement conditions of the other stage; it can also be set to experience the first stage first and then the second stage.

[0341] Combined Figures 64-71 As shown, 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 is opened, the first side edge W is located at W` relative to the box body 10; the second side edge N is located at N` relative to the box body 10; the side sealing edge H is located at H` relative to the box body 10. Correspondingly, when the door body 30 is opened to the subsequent state according to the trajectory setting in this embodiment (the door body 30 is represented by a solid line), compared with its previous state, the rotation axis of the door body 30 has changed relative to the door body 30; at this time, the first side edge W is located at W relative to the box body 10; the second side edge N is located at N relative to the box body 10; the side sealing edge H is located at H relative to the box body 10. As Figure 64Among them, 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; the position of the door body 30 indicated by the solid line is the position reached when the door body 30 is rotated and opened to Q1 in the setting manner of the present invention; Figure 65 Among them, the position of the door body 30 indicated by the dashed line is the position reached when the door body 30 is rotated and opened to Q1 in the rotation manner of the present invention and then rotated solely around the first central axis I (the first central axis I (I5) of the previous state relative to the door body 30 when the door body 30 is opened to Q1) of the door body 30 as the central axis to Q2; the position of the door body 30 indicated by the solid line is the position reached when the door body 30 is rotated and opened to Q2 in the setting manner of the present invention; similarly Figures 66-71 It is a position comparison schematic diagram of the above two different opening methods at different opening angles.

[0342] By comparing the setting of the present invention with the method of the door body 30 rotating solely around the first central axis I of its previous state, it can be known that:

[0343] During the process of the door body 30 being opened from the closed state to Q2, in the present application, the position W of the first side edge is always on the side where W` is far 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 where N` is far 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 where H` is 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 the closed state to Q2, the door body 30 has a tendency to move outward and backward.

[0344] During the process of the door body 30 being opened from Q2 to Q7, in the present application, the position W of the first side edge is always on the side where W` is close to the second body side wall and the access opening; the position N of the second side edge is always on the side where N` is close to the second body side wall and the access opening; the position H of the side sealing edge is always on the side where H` is close to the second body side wall and the access opening. That is, during the process of the door body 30 being opened from Q2 to Q7, the door body 30 has a tendency to move inward and backward.

[0345] The movement trends in the above stages are consistent with the movement trends in the previous stages.

[0346] It should be noted that the comparison between the position of the door body 30 in the current state of the present invention and the position of the assumed door body 30 when the 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 explanation to present and illustrate the movement trend when the door body 30 is opened.

[0347] It should be noted that the movement of the first hinge shaft 41 relative to the guiding portion 50, and the movements of the second hinge shaft 42 and the third hinge shaft 43 relative to the guiding portion 60 can cause the door body 30 to move inwards or outwards in different stages; the length of the guiding trajectory line K described above 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.

[0348] Embodiment III

[0349] In this Embodiment III, as Figures 72-76 shown, 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. On one side of any one of the two door bodies 30 away from its door side wall 32, a side sealing strip 3 is provided; wherein, when the two door bodies 30 are closed, the side sealing strip 3 on any one of the two door bodies 30 is in sealing cooperation with the side sealing strip 3 on the other; that is, when the two door bodies 30 are closed, the two side sealing strips 3 are squeezed into the gap between the two door bodies 30 to effectively seal the space between the two door bodies 30 and the cabinet body to prevent cold air from overflowing.

[0350] Combined with the setting of the hinge assembly in Embodiment II, the hinge assembly in this embodiment has the movement characteristics of the first stage (refer to the stage when the door body is opened from the closed state to Q2 in Embodiment II, which will not be elaborated here). That is, in this Embodiment III, during the process of the door body 30 being opened from the closed state to Q2, the door body 30 first moves outwards, which can avoid one of the two relatively arranged door bodies 30 driving the other door body 30 to be opened when one of them is opened, effectively reducing the loss of cold quantity; at the same time, it can effectively reduce the occlusion of the access opening by the door body 30.

[0351] Embodiment IV

[0352] As Figures 72-76 shown, the refrigerator in this Embodiment IV is also provided with two relatively arranged door bodies 30, and the two relatively arranged door bodies 30 cooperate together to open or close the access opening. On one side of any one of the two door bodies 30 away from its door side wall 32, a side sealing strip 3 is provided; wherein, when the two door bodies 30 are closed, the side sealing strip 3 on any one of the two door bodies 30 is in sealing cooperation with the side sealing strip 3 on the other; that is, when the two door bodies 30 are closed, the two side sealing strips 3 are squeezed into the gap between the two door bodies 30 to effectively seal the space between the two door bodies 30 and the cabinet body to prevent cold air from overflowing. Its setting method is the same as that in Embodiment III.

[0353] Different from Embodiment III, as Figure 77 shown, the refrigerator in this Embodiment IV can be applied to the situation of being embedded in a cabinet.

[0354] Specifically, different from Embodiment 3 and combined with the setting of the hinge assembly in Embodiment 2, the hinge assembly in this Embodiment 4 has the overall motion characteristics in the first stage and the second stage (see Embodiment 2, which will not be elaborated here). It can be set that the door body 30 moves outward in the first stage first during the opening process, and then moves inward in the second stage.

[0355] Specifically, in this Embodiment 4, during the process of opening the door body 30 from the closed state to Q2, the door body 30 moves outward first. During the process of continuously opening the door body 30 from Q2, it has a tendency to move inward. The above settings can, on the one hand, move the door body 30 outward at the initial stage of opening to avoid driving another door body 30 to open and reduce the cold loss. On the other hand, after the two door bodies 30 are separated, the opened door body 30 can be moved 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, 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 is opened, further reduce the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improve the utilization rate of the cabinet 100 space. Moreover, setting the door body 30 to move inward during the process of opening to the maximum angle can reduce the limitation of the cabinet on the maximum angle that the door body 30 can open, so that the door body 30 of the refrigerator installed in the cabinet can open to a larger maximum angle.

[0356] In some embodiments of the present application, Q2 belongs to any value among any values of 10° to 15°.

[0357] Embodiment 5

[0358] As Figures 78-82 shown, in this Embodiment 5, 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 flip 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 flip beam 9 can be slidably matched with the guide rail 91 to realize the switching of different angles of the flip beam 9 relative to the door body 30. When the two door bodies 30 are closed, the flip beam 9 closes the gap between the two door bodies 30 and the box body 10 to effectively prevent cold air from overflowing.

[0359] Specifically, the flip beam 9 includes a door turning beam rear cover, and the door turning beam rear cover is connected to the door body 30 through the first door hinge and the second door hinge, and the door turning beam rear cover is elastically connected to the two door hinges by torsion springs respectively; among them, the first door hinge is located above the second door hinge. Among them, a guide block 90 is fixedly provided on the top of the door turning beam rear cover, and the guide block 90 is used as a rotating part of the flip beam 9 to cooperate with the guide rail 91 to realize the switching of different angles of the flip beam 9 relative to the door body 30.

[0360] Both the door hinge and the rear cover of the door rotating beam are provided with through holes for passing the torsion spring force arms, and the upper and lower door hinges are connected to the rear cover of the door rotating beam by using a torsion spring. Specifically, the first door hinge is connected to the rear cover of the door rotating beam by a first torsion spring, and the second door hinge is connected to the rear cover of the door rotating beam by a second torsion spring. When the rotating beam 9 rotates around the door hinge, the first torsion spring and the second torsion spring store or release elastic energy, so that the rear cover of the door rotating beam rotates stably and returns to its original position in time.

[0361] In the state where the door body 30 is opened, due to the action of the torsion force of the torsion spring (the first torsion spring and the second torsion spring), the rotating beam 9 closely adheres to one side of the door hinge fixed to the inner lining of the door body 30.

[0362] As Figures 81-82 shown, when the door body 30 is closed from the opened 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 GS, the guide block 90 at the topmost end of the rotating beam 9 contacts the guide rail 91.

[0363] When the external force continues to be applied when the door body 30 is closed to the angle GS, the door body 30 continues to move in the closing direction, and the guide block 90 at the topmost end of the rotating beam 9 enters the guide rail 91, and the guide block 90 and the guide rail 91 interact with each other. During this closing process, due to the pressure of the guide rail 91 on the guide block 90, the guide block 90 starts to flip, and the torsion spring is compressed radially. When the rotating beam 9 flips over G`F and reaches the critical value of the torsion spring. After that, the torsion spring starts to stretch to release the torsion force of the torsion spring so that the rotating beam 9 flips quickly to the in-place; until the door body 30 is closed, at this time the torsion force of the torsion spring is released and returns to the relaxed state again. After the door body 30 is closed, the rotating beam 9 contacts the seal provided on the door body 30, effectively preventing cold air from overflowing between the seams of the double-opening doors. If the external force is removed before the rotating beam 9 flips to G`F, since the torsion of the torsion spring does not reach the critical value of the torsion spring, the guide block 90 at the top of the rotating beam cannot complete the flip effectively after entering the guide rail 91 on the box body and is stuck, and the rotating beam cannot complete the flip automatically, resulting in the door body 30 with the rotating beam not being closed in place, causing the failure of low-temperature storage of the refrigerator.

[0364] In the fifth embodiment, the first hinge member is provided with a first fitting portion at one end thereof away from the side wall of the first body, and the end portion of the door body 30 close to the first hinge member is provided with a second fitting portion for cooperating with the first fitting portion to realize the locking and unlocking of the door body 30 and the box body 10. As a settable manner, the second fitting portion is located on the side of the second hinge member away from the door side wall 32.

[0365] When the door body 30 is closed from the opened 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 fitting portion gradually approaches the first fitting portion.

[0366] When the door body 30 is closed to the angle GB0, the second mating part abuts against the first mating part; then under the action of an external force, the door body 30 continues to close, the first mating part and the second mating part act on each other, the second mating part undergoes elastic deformation, and under the combined action of the external force and the acting force of the first mating part, the second mating part and the first mating part gradually approach each other, and the elastic deformation amount of the second mating part gradually increases.

[0367] When the door body 30 is closed to the angle GB1, the elastic deformation amount of the second mating part reaches the maximum deformation amount during the closing process of the door body 30.

[0368] When the door body 30 continues to move in the closing direction after being closed to the angle GB1, the elastic energy stored in the second mating part during the previous deformation is released. Under the combined action of its acting force with the first mating part, the second mating part 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 mating part and the first mating part are locked, realizing the locking of the door body 30 and the box body 10. Above, GB0 > GB1. As a settable method, GB0 is set to any value between 15° and 20°, and GB1 is set to any value between 3° and 8°. To sum up, after the door body 30 is closed to GB1, under the interaction of the first mating part and the second mating part, the door body 30 can be automatically closed.

[0369] 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 GB1, that is, after the door body 30 rotates and closes to the maximum elastic deformation amount of the second mating part, the external force is removed, and the door body 30 can automatically complete the flip. And when the external force is removed after the door body 30 is closed to GB1, 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.

[0370] To sum up, during the process of the door body 30 closing from the angle GB0 to the angle GB1, under the combined action of the external force and the first mating part, the second mating part undergoes elastic deformation.

[0371] When the door body 30 is closed to GB1, the elastic deformation amount of the second mating part reaches the maximum deformation amount during the closing process of the door body 30.

[0372] During the process of the door body 30 from GB1 to the closed state, the external force is removed, and the elastic force of the second mating part is released, and the door body 30 quickly closes automatically.

[0373] That is, in the fifth embodiment, under the structural settings of the first mating part and the second mating part, during the process of the door body 30 from GB1 to the closed state, the door body 30 has the characteristic of automatically closing.

[0374] 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 the stage where the door body is opened from the closed state to Q2 in Embodiment 2, which will not be elaborated here). That is, in this Embodiment 5, when the door body 30 is opened from the closed state to Q2, the door body 30 moves outward. Correspondingly, when the door body 30 is in the closing process from Q2 to the closed state, the door body 30 has a tendency to move inward.

[0375] As a settable manner, GB1 > Q2. That is, in the automatic closing stage (the process of continuing to close from GB1), when closing from the angle Q2, the door body 30 has a tendency to move inward; the door body 30 moves inward, applying an inward acting force on the turning beam 9, and this acting force causes the turning beam to turn. Since in this embodiment, when the door body 30 continues to close from GB1, it has the characteristic of automatic closing, and the door body 30 maintains the tendency to move inward, the inward acting force applied by the door body 30 moving inward on the turning beam 9 always exists, which can ensure that the turning beam 9 turns in place, enabling the door body 30 to close in place, and avoiding cold quantity leakage caused by the turning beam 9 not turning in place.

[0376] In some embodiments of the present application, referring to Figures 83-86 , the door body 30 includes a mounting block, and the mounting block is mounted at a position on the door body 30 opposite to the hinge plate 40. A guiding portion 50, a guiding portion 60, and a second mating portion are formed on the mounting block. The first mating portion is formed on the side of the extending portion 402 of the hinge plate 40 away from the door side wall 32.

[0377] Specifically referring to Figures 83-86 , 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 with 83 - Figure 86 , a guiding groove is formed on the mounting block; wherein, the guiding groove includes a groove bottom and a circumferential groove wall surrounding the edge of the groove bottom. A guiding groove is formed on the groove bottom of the guiding groove, and the circumferential groove wall of the guiding groove defines a guiding track line K. The door body 30 includes a door end cap 38, and a receiving groove 37 is formed on the door end cap 38 for fixedly mounting the mounting block. As an implementable manner, the mounting block is placed in the receiving groove 37, and then the mounting block is fixedly connected to the door body 30 through a first fixing member. Specifically, the first fixing member can be set as a screw or the like.

[0378] As an implementable manner, the mounting block includes a plate body 81, and the plate body 81 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. It can be set that a plurality of first fixing members are distributed around the guiding groove.

[0379] As a configurable manner, on the side of the bottom wall of the receiving groove 37 close to the door side wall 32, a first receiving portion recessed toward the inner cavity of the door body 30 is formed. The guiding groove is at least partially received within the first receiving portion, and the bottom of the guiding groove cooperates with the inner wall of the first receiving portion; the plate body 81 cooperates with the bottom wall of the receiving groove 37 to effectively define the position of the guiding groove.

[0380] As a configurable manner, on the cavity bottom wall of the first receiving portion, a second receiving portion recessed toward the inner cavity of the door body 30 is formed. The guiding groove is installed within the second receiving portion and cooperates with the inner wall of the second receiving portion to limit the guiding groove.

[0381] In some embodiments of the present application, the second mating portion on the mounting block is provided as a locking structure. Specifically, the second mating portion includes a locking hook 82 provided on the side of the plate body 81 away from the door side wall 32. The locking hook 82 extends away from the door side wall 32 and bends toward 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.

[0382] The first mating portion provided on the side of the hinge plate 40 away from the first body side wall is provided 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 within the hooking gap 404, the stop portion 403 is located within the locking hook 82, and the locking hook 82 on the door body 30 hooks the stop portion 403 on the hinge plate 40, thereby locking the door body 30 and preventing the door body 30 from not closing tightly and affecting the refrigeration and freezing effects of the refrigerator; when the door body 30 is opened, the locking hook 82 is deformed by force to overcome the block of the stop portion 403, thereby disengaging from the stop portion 403.

[0383] The locking hook 82 may include a root connecting portion 83 and a hooking portion 84. The root connecting portion 83 is connected to the plate body 81, and the hooking portion 84 is connected to the root connecting portion 83 and bends toward 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.

[0384] 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.

[0385] As Figures 84-86 shown, when the door body 30 is closed 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 85, when the door body 30 is closed to GB0, the hooking part 84 abuts against the stopping part 403; then under the action of an external force, the door body 10 continues to close, the stopping part 403 and the hooking part 84 interact with each other, the hooking part 84 undergoes elastic deformation, and under the combined action of the external force and the acting force of the stopping part 403, the moving hooking part 82 gradually enters the hooking gap 404 (that is, the stopping part 403 enters the hooking part 84); as Figure 86 , when the door body 30 is closed to GB1, the elastic deformation amount of the hooking part 84 reaches the maximum deformation amount during the closing process of the door body 30. After the door body 30 is closed to reach GB1, the elastic energy stored by the previous deformation of the hooking part 82 is gradually released, and under the combined action with the acting force of the stopping part 403, the hooking part 82 restores to the relaxed state and drives the hooking part 82 to further enter the hooking gap 404, so that the door body 30 is quickly and automatically closed in place until the door body 30 is closed, and the locking hook 82 is locked with the hinge plate 40, realizing the locking of the door body 30 and the box body 10. That is, after the door body 30 is closed to reach GB1, the door body 30 has the characteristic of automatic closing.

[0386] Embodiment Six

[0387] As Figures 78-82 shown, the refrigerator in this Embodiment Six also includes two relatively arranged door bodies 30, and the two relatively arranged door bodies 30 cooperate with each other 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 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 Five.

[0388] In addition, similar to Embodiment Five, in this Embodiment Six, a first matching part and a second matching part 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. (Same setting method as Embodiment Five)

[0389] And it satisfies GB1 > Q2. That is, during the automatic closing process of the door body 30 (during the process of continuing to close from GB1), the door body 30 has a tendency to move inward, which can ensure that the turning beam 9 is turned in place and the door body 30 is closed in place.

[0390] Different from Embodiment Five, as Figure 87 shown, the refrigerator of this Embodiment Six can be applicable to the scenario of being embedded in a cabinet.

[0391] Specifically, different from Embodiment 5, in combination with the setting of the hinge assembly in Embodiment 2, the hinge assembly in Embodiment 6 has the overall motion characteristics of the first stage and the second stage in Embodiment 2 (see Embodiment 2 and will not be elaborated here). That is, it can be set that the door body 30 moves outward in the first stage and then inward in the second stage during the opening process.

[0392] Specifically, in this Embodiment 6, during the process of opening the door body 30 from the closed state to Q2, the door body 30 first moves outward. That is, during the process of closing the door body 30 from Q2, the door body has a tendency to move inward. And during the process of continuously opening the door body 30 from Q2, it has a tendency to move inward. With the above settings, on the one hand, it can make the door body 30 have a tendency to automatically close and move inward during the process of closing from the angle Q2, which can ensure that the flipping beam 9 flips in place and the door body 30 closes in place, avoiding cold loss. On the other hand, during the opening process of the door body 30, after the door body 30 moves outward a certain distance first, the door body 30 starts to move inward from Q2, 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.

[0393] In some embodiments of the present application, Q2 belongs to any value within any value of 10° to 15°.

[0394] 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 each embodiment, the main focus is on the differences from the embodiments it mentions, and the similarities are not elaborated too much. It should be added that as the settings of the first hinge member and the second hinge member for precisely controlling the rotation and opening of the door body 30 and moving it in a specific direction, to form a structural setting with various trajectory 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.

[0395] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than 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 described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0396] For the sake of explanation, the above description has been made in conjunction with specific embodiments. However, the above 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 the purpose of better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the 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 arranged opposite to each other; A door body that is connected to the box body through a hinge assembly to open or close the access opening; the door body has a front wall of the door that is away from the box body when the door body is closed, and a door side wall that is connected to the front wall of the door and is close to the hinge assembly; The hinge assembly includes: A first hinge shaft, a second hinge shaft, and a third hinge shaft, which are fixed to the box body and close to the first body side wall; the second hinge shaft, the first hinge shaft, and the third hinge shaft are sequentially away from the first body side wall; A guiding portion and a guiding part, which are located at the end of the door body and close to the door side wall; the guiding portion defines a linear guiding track line, and the guiding part defines a closed circular guiding track line; wherein, the guiding track line surrounds the guiding track line; Wherein, the arrangement direction of the first body side wall and the second body side wall is defined as the transverse direction; during the process of the door body opening from the closed state, the first hinge shaft moves linearly along the guiding track line relative to the guiding portion, the second hinge shaft and the third hinge shaft both move relative to the guiding part, and the door body opens the access opening and moves a certain distance in the transverse direction; The guiding track line includes a second guiding section K2 and a third guiding section K3 located on the side of the second guiding section K2 away from the door side wall; wherein, the connection position of the second guiding section K2 and the third guiding section K3 is denoted as the third connection position c; The second guiding section K2 extends in the direction away from the door side wall and close to the front wall of the door to the third connection position c, and the third guiding section K3 extends from the third connection position c in the direction away from the door side wall and the front wall of the door; When the door body is opened to 90°, the straight line where the central axis of the first hinge shaft and the central axis of the second hinge shaft are located is perpendicular to the front wall of the door, and the second hinge shaft is in contact and cooperation with the third connection position c.

2. The refrigerator according to claim 1, characterized in that: The central axis of the first hinge shaft is denoted as the first central axis I, the central axis of the second hinge shaft is denoted as the second central axis E, and the central axis of the third hinge shaft is denoted as the third central axis F; In the projection on the plane of the top wall of the box body, the first central axis I, the second central axis E, and the third central axis F form an axis triangle IEF; wherein, the axis triangle IEF is an obtuse triangle, and the angle FIE is an obtuse angle.

3. The refrigerator according to claim 2, characterized in that: Wherein, The angle FIE belongs to any value in the range of 172° to 178°.

4. The refrigerator according to claim 2, characterized in that: In the projection on the plane of the top wall of the box body, the longest side EF of the axis triangle IEF is located on the side of the vertex I of the axis triangle IEF away from the access opening.

5. The refrigerator according to any one of claims 2-4, characterized in that: In the projection on the plane of the top wall of the box body, the straight line IE where the first central axis I and the second central axis E are located is parallel to the access opening, and 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.

6. The refrigerator according to any one of claims 1-4, characterized in that: The guiding track line is parallel to the front wall of the door; during the opening process of the door body, the first hinge shaft moves relative to the door body in a direction parallel to the front wall of the door.

7. The refrigerator according to claim 1 or 2 or 3 or 4, characterized in that: The centroid of the guiding track line is denoted as the guiding centroid O, and the guiding track line surrounds its guiding centroid O. The guiding track line includes a first guiding segment K1, a fourth guiding segment K4, a fifth guiding segment K5, and a sixth guiding segment K6; 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, and the sixth guiding segment K6 are connected end to end in sequence; the first guiding segment K1, the second guiding segment K2, the third guiding segment K3, the fourth guiding segment K4, and the fifth guiding segment K5 all bulge away from the guiding centroid O; the sixth guiding segment K6 bulges towards the guiding centroid O to enable smooth transition connection between the fifth connection position e and the first connection position a. Among them, the connection point of the sixth guiding segment K6 and the first guiding segment K1 is denoted as the first connection position a; the connection points where the first guiding segment K1, the second guiding segment K2, the third guiding segment K3, the fourth guiding segment K4, the fifth guiding segment K5, and the sixth guiding segment K6 are 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, and the sixth connection position f in sequence. In the projection on the plane where the front wall of the door is located, the second connection position b, the first connection position a, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are successively farther away from the side wall of the door. In the projection on the plane where the side wall of the door is located, the third connection position c, the second connection position b, the fourth connection position d, the first connection position a, the sixth connection position f, and the fifth connection position e are successively farther away from the front wall of the door.

8. The refrigerator according to claim 1 or 2 or 3 or 4, characterized in that: The plane passing through the centroid of the door body and parallel to the front wall of the door is denoted as the centroid plane P; during the opening process of the door body, the centroid plane P remains stationary relative to the door body. During the process of the door body being opened from the closed state to the angle G`1, the centroid plane P is located on the side of the first hinge axis, the second hinge axis, and the third hinge axis away from the front wall of the door. During the process of the door body being opened from the angle G`1 to the maximum angle Gmax that the door body can reach, the centroid plane P is located between the first hinge axis and the third hinge axis and on the side of the first hinge axis away from the second hinge axis. Among them, G`1: Gmax belongs to any value in the range of 0.8 to 1.

9. The refrigerator according to claim 1 or 2 or 3 or 4, wherein: 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. A door seal is provided on the door rear wall; when the door body is closed, the door seal fits against the front end surface of the box body surrounding the access opening; the door seal includes a side seal edge H close to the side wall of the door and away from the front wall of the door. The plane where the access opening is located is denoted as the second reference plane M2; the plane where the second side wall of the body is located is denoted as the first reference plane M1, and the first reference plane M1 is perpendicular to the second reference plane M2; the first reference plane M1 and the second reference plane M2 remain stationary relative to the box body during the opening process of the door body relative to the box body. In the projection on the plane where the top wall of the box body is located, 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; The side sealing edge H first moves towards the direction close to the first reference plane M1 and the second reference plane M2, and then moves towards the direction close to the first reference plane M1 and away from the second reference plane M2.

10. The refrigerator according to claim 9, characterized in that: In the projection on the plane where the top wall of the box body is located, during the process of the door body opening from the closed state to the angle G0, the second side edge N is located on the side of the side sealing edge H close to the first body side wall; During the process of the door body opening from the angle G0 to the maximum angle Gmax that the door body can reach, the second side edge N is located on the side of the side sealing edge H away from the first body side wall.

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