Refrigerator

Abstract

The present invention provides a refrigerator, which comprises a box body, a hinge assembly and a door body; the hinge assembly comprises a guiding part and a guiding portion located on the door body, a first hinge shaft, a second hinge shaft and a third hinge shaft fixed on the box body; the guiding part defines a linear guiding track line; the guiding portion defines a closed annular guiding track line; when the door body is opened from the closed state, the first hinge shaft moves relative to the guiding part, and both the second hinge shaft and the third hinge shaft move relative to the guiding portion, and the door body is opened and moves a certain distance horizontally; the guiding track line comprises a second guiding section; along the direction from the door sidewall to the end of the door body opposite to the door sidewall, the second guiding section extends away from the door sidewall 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 interference fit with the second guiding section; 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°.

Description

Technical Field

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

[0002] The door body of the refrigerator is connected to the refrigerator body through a hinge. 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, it will automatically close, and it cannot remain 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 some extent.

[0004] To this end, 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 at 90°.

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

[0006] A body, which defines a storage compartment having an access opening, and has a first body side wall and a second body side wall disposed 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 of the door that is far from the body when the door body is closed, and a side wall of the door that is connected to the front wall of the door and is close to the hinge assembly;

[0008] The hinge assembly includes:

[0009] A first hinge shaft, a second hinge shaft, and a third hinge shaft, which are fixed to 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 far from the first body side wall; relative to the plane where the access opening is located, the first hinge shaft, the second hinge shaft, and the third hinge shaft are close to the front wall of the door when the door body is closed;

[0010] A guiding portion and a guiding part, which are located at the end of the door body and close to the side wall of the door; the guiding portion defines a linear guiding track line, and the guiding track line extends from the end close to the side wall of the door and the front wall of the door in a direction away from the side wall of the door and the front wall of the door; the guiding part defines a closed circular guiding track line, and 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 along the guiding track line relative to the guiding part in a straight line inclined to the door side wall, 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;

[0012] The guiding track line includes a second guiding section K2; along the direction from the door side wall to the end of the door body opposite to the door side wall, the second guiding section K2 extends in a direction away from the door side wall and the front door wall;

[0013] 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 interference fit with the second guiding section K2.

[0014] In some embodiments of the refrigerator of the present application, the guiding track line includes a fifth guiding section K5 located on the side of the second guiding section K2 away from the front door wall; when the door body is opened to 90°, the third hinge shaft is in interference fit with the fifth guiding section K5.

[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, 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.

[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 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.

[0019] In some embodiments of the refrigerator of the present application, the included angle between the guiding track line and the front door wall is denoted as θ; θ belongs to any value in the range of 20° to 45°;

[0020] When the door body is opened, the first hinge shaft moves along the guiding track line in a straight line inclined to the front door wall.

[0021] In some embodiments of the refrigerator of the present application, the guiding track line includes a first guiding segment K1, a third guiding segment K3, a fourth guiding segment K4, a fifth guiding segment K5, a sixth guiding segment K6, and a seventh guiding segment K7; the first guiding segment K1, the second guiding segment K2, the third guiding segment K3, the fourth guiding segment K4, the fifth guiding segment K5, the sixth guiding segment K6, and the seventh guiding segment K7 are connected end to end in sequence;

[0022] Wherein, the connection point of the seventh guiding segment K7 and the first guiding segment K1 is denoted as the first connection position a; the connection points of the first guiding segment K1, the second guiding segment K2, the third guiding segment K3, the fourth guiding segment K4, the fifth guiding segment K5, the sixth guiding segment K6, and the seventh guiding segment K7 connected in sequence are denoted as the second connection position b, the third connection position c, the fourth connection position d, the fifth connection position e, the sixth connection position f, and the seventh connection position g in sequence;

[0023] In the projection on the plane where the front door wall is located, the seventh connection position g, the first connection position a, the second connection position b, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are successively away from the door side wall;

[0024] In the projection on the plane where the door side wall is located, the second connection position b, the third connection position c, the fourth connection position d, the first connection position a, the fifth connection position e, the seventh connection position g, and the sixth connection position f are successively away from the front door wall.

[0025] In some embodiments of the refrigerator of the present application, the door body has a door rear wall disposed opposite to the front door wall; the door rear wall intersects with the door side wall to form a second side edge N;

[0026] The plane where the access opening is located is denoted as the second reference plane M2; the plane where the second body side wall is located is denoted as the first reference plane M1, and the first reference plane M1 is perpendicular to the second reference plane M2; the first reference plane M1 and the second reference plane M2 remain stationary relative to the cabinet during the opening process of the door body relative to the cabinet;

[0027] In the projection on the plane where the top wall of the cabinet is located, during the process of the door body being opened 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;

[0028] During the process of the door body being opened to the maximum angle Gmax, the movement track of the second side edge is an arc.

[0029] In some embodiments of the refrigerator of the present application, 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 door side wall and away from the front wall of the door;

[0030] 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 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;

[0031] During the process of the door body opening to the maximum angle Gmax, the movement trajectory of the side seal edge H is an arc.

[0032] In some embodiments of the refrigerator of the present application, in the plane where the top wall of the box body is located, the center of the circle where the movement trajectory of the arc-shaped second side edge is located is denoted as the center of the second side edge ON, and the center of the circle where the movement trajectory of the arc-shaped side seal edge is located is denoted as the center of the side seal edge OH;

[0033] Among them, the radius of the circle where the movement trajectory of the second side edge is located is smaller than the radius of the circle where the movement trajectory of the side seal edge is located;

[0034] The central axis of the first hinge shaft, the center of the second side edge ON, and the center of the side seal edge OH are successively away from the first body side wall; and the center of the side seal edge OH, the central axis of the first hinge shaft, and the center of the second side edge ON are successively away from the plane where the access opening is located.

[0035] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0036] The present invention provides a refrigerator, which includes a box body, a hinge assembly, and a door body; the hinge assembly includes a guiding part and a guiding part located on the door body, a first hinge shaft, a second hinge shaft, and a third hinge shaft fixed to the box body; the guiding part defines a linear guiding trajectory line; the guiding part defines a closed annular guiding trajectory line; when the door body opens from the closed state, the first hinge shaft moves relative to the guiding part, and the second hinge shaft and the third hinge shaft both move relative to the guiding part, and the door body opens and moves a certain distance horizontally; the guiding trajectory line includes a second guiding section; along the direction from the door side wall to the end of the door body opposite to the door side wall, the second guiding section extends in a direction away from the door side wall and the front wall of the door; when the door body opens 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 interference fit with the second guiding section; the refrigerator of the present invention enables the door body to generate a certain displacement horizontally when opening, and enables the door body to maintain a 90° open state, which is convenient for taking and placing items. Description of the Drawings

[0037] Figure 1 is a perspective view of the first embodiment of the refrigerator of the present invention;

[0038] Figure 2 is Figure 1 a partial structural schematic diagram of the cooperation between the first hinge member and the second hinge member when the door body is closed;

[0039] Figure 3 is a structural schematic diagram of the first hinge member in the first embodiment of the refrigerator of the present invention;

[0040] Figure 4 is a structural schematic diagram of the first hinge member from another perspective in the first embodiment of the refrigerator of the present invention;

[0041] Figure 5 is a schematic diagram of the relative positions of the door corners when the door body is closed in the first embodiment of the refrigerator of the present invention;

[0042] Figure 6 is a schematic diagram of the relative positions of the door corners when the door body is opened to the maximum angle in the first embodiment of the refrigerator of the present invention;

[0043] Figure 7 is a view of the hinge assembly when the door body is opened to φ = 0° in the first embodiment of the refrigerator of the present invention;

[0044] Figure 8 is a view of the hinge assembly when the door body is opened to φ = G1 in the first embodiment of the refrigerator of the present invention;

[0045] Figure 9 is a view of the hinge assembly when the door body is opened to φ = G2 in the first embodiment of the refrigerator of the present invention;

[0046] Figure 10 is a view of the hinge assembly when the door body is opened to φ = G3 in the first embodiment of the refrigerator of the present invention;

[0047] Figure 11 is a view of the hinge assembly when the door body is opened to φ = G4 in the first embodiment of the refrigerator of the present invention; [[ID=*45]]

[0048] Figure 12 is a view of the hinge assembly when the door body is opened to φ = G5 in the first embodiment of the refrigerator of the present invention;

[0049] Figure 13 is a view of the hinge assembly when the door body is opened to φ = G6 in the first embodiment of the refrigerator of the present invention;

[0050] Figure 14 is a view of the hinge assembly when the door body is opened to φ = G7 in the first embodiment of the refrigerator of the present invention;

[0051] Figure 15 is a view of the hinge assembly when the door body is opened to φ = G8 in the first embodiment of the refrigerator of the present invention; Note: There seems to be a formatting issue with tag ID 45 in the original text where it might be a misprint or an incomplete tag. It's left as is in the translation. If this is an important tag, please double-check the original.

[0052] 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 = G9;

[0053] 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 = G10;

[0054] Figure 18 It is a schematic diagram of the movement of the first side edge, the second side edge and the side sealing edge during the opening process of the door body of the refrigerator in the first embodiment of the present invention;

[0055] Figure 19 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion at different angles when the door body of the refrigerator in the first embodiment of the present invention is opened from the closed state to G10;

[0056] Figure 20 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion at different angles when the door body of the refrigerator in the first embodiment of the present invention is opened from the closed state to G2;

[0057] Figure 21 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion at different angles when the door body of the refrigerator in the first embodiment of the present invention is opened from G2 to G5;

[0058] Figure 22 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion at different angles when the door body of the refrigerator in the first embodiment of the present invention is opened from G5 to G7;

[0059] Figure 23 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion at different angles when the door body of the refrigerator in the first embodiment of the present invention is opened from G7 to G10;

[0060] Figure 24 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G1;

[0061] Figure 25 It is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft, and the second hinge shaft and the third hinge shaft relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to φ = G2;

[0062] Figure 26 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 the first embodiment of the present invention is opened to φ = G3;

[0063] Figure 27 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 the first embodiment of the present invention is opened to φ = G4;

[0064] Figure 28 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 the first embodiment of the present invention is opened to φ = G5;

[0065] Figure 29 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 the first embodiment of the present invention is opened to φ = G6;

[0066] Figure 30 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 the first embodiment of the present invention is opened to φ = G7;

[0067] Figure 31 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 the first embodiment of the present invention is opened to φ = G8;

[0068] Figure 32 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 the first embodiment of the present invention is opened to φ = G9;

[0069] Figure 33 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 the first embodiment of the present invention is opened to φ = G10;

[0070] Figure 34 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;

[0071] Figure 35 Schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body of the refrigerator in the first embodiment of the present invention is less than G2;

[0072] Figure 36It 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 G2 and less than G5;

[0073] Figure 37 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 G5 and less than G90;

[0074] Figure 38 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 90°;

[0075] Figure 39 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 G10;

[0076] Figure 40 It is a comparison diagram of the position of the door body when it is opened to G1 and the position of the door body when it rotates from the closed state to G1 with its first central axis I at the closing time as the rotation axis;

[0077] Figure 41 It is a comparison diagram of the position of the door body when it is opened to G2 and the position of the door body when it rotates from the G1 state to G2 with its first central axis I at the G1 opening time as the rotation axis;

[0078] Figure 42 It is a comparison diagram of the position of the door body when it is opened to G3 and the position of the door body when it rotates from the G2 state to G3 with its first central axis I at the G2 opening time as the rotation axis;

[0079] Figure 43 It is a comparison diagram of the position of the door body when it is opened to G4 and the position of the door body when it rotates from the G3 state to G4 with its first central axis I at the G3 opening time as the rotation axis;

[0080] Figure 44 It is a comparison diagram of the position of the door body when it is opened to G5 and the position of the door body when it rotates from the G4 state to G5 with its first central axis I at the G4 opening time as the rotation axis;

[0081] Figure 45 It is a comparison diagram of the position of the door body when it is opened to G6 and the position of the door body when it rotates from the G5 state to G2 with its first central axis I at the G5 opening time as the rotation axis;

[0082] Figure 46 It is a comparison diagram of the position of the door body when it is opened to G7 and the position of the door body when it rotates from the G6 state to G2 with its first central axis I at the G6 opening time as the rotation axis;

[0083] 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 G8 and the position when the door body in the state of being opened to G7 is rotated to G3 with the first central axis I when it is opened to G7 as the rotation axis;

[0084] 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 G9 and the position when the door body in the state of being opened to G8 is rotated to G4 with the first central axis I when it is opened to G8 as the rotation axis;

[0085] 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 G10 and the position when the door body in the state of being opened to G9 is rotated to G5 with the first central axis I when it is opened to G9 as the rotation axis;

[0086] Figure 50 It is a top view of the refrigerator in the second embodiment of the present invention;

[0087] Figure 51 It is Figure 50 A partial structural schematic diagram of the door body when closed relative to the mating portion of the two door bodies;

[0088] Figure 52 It is a mating schematic diagram of the two side sealing strips when the door body of the refrigerator in the second embodiment of the present invention is in the closed state;

[0089] Figure 53 It is a relative position schematic diagram of the two side sealing strips when the door body of the refrigerator in the second embodiment of the present invention starts to open;

[0090] Figure 54 It is a top view of the refrigerator in the third embodiment of the present invention relative to the cabinet;

[0091] Figure 55 It is a three-dimensional view of the refrigerator in the fourth embodiment of the present invention;

[0092] Figure 56 It is a relative position schematic diagram of the flip beam and the box body from another perspective when the door body of the refrigerator in the fourth embodiment of the present invention is opened;

[0093] Figure 57 It is a top view of the refrigerator in the fourth embodiment of the present invention;

[0094] Figure 58 It is a relative position schematic diagram of the door body, the guide block and the guide groove when the door body of the refrigerator in the fourth embodiment of the present invention is closed to GS;

[0095] Figure 59 It is a relative position schematic diagram of the door body, the guide block and the guide groove when the door body of the refrigerator in the fourth embodiment of the present invention is closed to GF;

[0096] Figure 60 It is a schematic exploded view of the mounting block and the end of the door body in the fourth embodiment of the refrigerator of the present invention;

[0097] Figure 61 It is a schematic structural view of the first mating part and the second mating part when the door body is in the closed state in the fourth embodiment of the refrigerator of the present invention;

[0098] Figure 62 It is a schematic structural view of the door body of the refrigerator of the present invention when it is closed from the open state to the state where the first mating part and the second mating part are in contact in the fourth embodiment;

[0099] Figure 63 It is a schematic structural view of the door body of the refrigerator of the present invention when it is closed from the open state to the state where the second mating part is elastically deformed to the maximum due to the interaction between the first mating part and the second mating part in the fourth embodiment;

[0100] Figure 64 It is a top view of the refrigerator relative to the cabinet in the fifth embodiment of the refrigerator of the present invention.

[0101] Figure 65 It is a perspective view of the refrigerator in the sixth embodiment of the refrigerator of the present invention;

[0102] Figure 66 It is a top view of the refrigerator in the sixth embodiment of the refrigerator of the present invention;

[0103] Figure 67 It is a schematic position view 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 is opened to φ = 0° in the second embodiment of the refrigerator of the present invention;

[0104] Figure 68 It is a schematic position view 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 is opened to φ = Q1 in the second embodiment of the refrigerator of the present invention;

[0105] Figure 69 It is a schematic position view 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 is opened to φ = Q2 in the second embodiment of the refrigerator of the present invention;

[0106] Figure 70 It is a schematic position view 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 is opened to φ = Q3 in the second embodiment of the refrigerator of the present invention;

[0107] Figure 71 It is a schematic position view 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 is opened to φ = Q4 in the second embodiment of the refrigerator of the present invention;

[0108] Figure 72It 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 second embodiment of the present invention is opened to φ = Q5;

[0109] Figure 73 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 second embodiment of the present invention is opened to φ = Q6;

[0110] Figure 74 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 second embodiment of the present invention is opened to φ = Q8`;

[0111] Figure 75 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 second embodiment of the present invention is opened to φ = Q7;

[0112] Figure 76 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 second embodiment of the present invention is opened to φ = Q8;

[0113] Figure 77 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 at different angles when the door body of the refrigerator in the second embodiment of the present invention is opened from the closed state to Q8;

[0114] Figure 78 It is a comparison diagram of the position of the door body of the refrigerator in the first embodiment of the present invention when opened to Q1 and the position of the door body when rotated from the closed state around its first central axis I when closed to Q1;

[0115] Figure 79 It is a comparison diagram of the position of the door body of the refrigerator in the first embodiment of the present invention when opened to Q2 and the position of the door body when rotated from the state of being opened to Q1 around its first central axis I when opened to Q1 to Q2;

[0116] Figure 80 It is a comparison diagram of the position of the door body of the refrigerator in the first embodiment of the present invention when opened to Q3 and the position of the door body when rotated from the state of being opened to Q2 around its first central axis I when opened to Q2 to Q3;

[0117] Figure 81 It is a comparison diagram of the position of the door body of the refrigerator in the first embodiment of the present invention when opened to Q4 and the position of the door body when rotated from the state of being opened to Q3 around its first central axis I when opened to Q3 to Q4;

[0118] Figure 82 It is a comparison diagram of the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q5 and the position when the door body is opened to the Q4 state and rotated to the Q5 position with the first central axis I when it is opened to Q4 as the rotation axis;

[0119] Figure 83 It is a comparison diagram of the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q6 and the position when the door body is opened to the Q5 state and rotated to the Q2 position with the first central axis I when it is opened to Q5 as the rotation axis;

[0120] Figure 84 It is a comparison diagram of the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q8` and the position when the door body is opened to the Q6 state and rotated to the Q2 position with the first central axis I when it is opened to Q6 as the rotation axis;

[0121] Figure 85 It is a comparison diagram of the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q7 and the position when the door body is opened to the Q8` state and rotated to the Q2 position with the first central axis I when it is opened to Q8` as the rotation axis;

[0122] Figure 86 It is a comparison diagram of the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q8 and the position when the door body is opened to the Q7 state and rotated to the Q2 position with the first central axis I when it is opened to Q7 as the rotation axis;

[0123] In each of the above figures: In each of the above figures: the cabinet body 10; the cabinet 100; the door body 30; the front wall 31 of the door; the side wall 32 of the door; the rear wall 33 of the door; the first side edge W; the second side edge N; the receiving groove 37; the door end cover 38; the centroid plane P; the door seal 5; the side seal edge H; the hinge plate 40; the connecting portion 401; the extending portion 402; the stopping portion 403; the hanging gap 404; the first extension plate 4021; the second extension plate 4022; the first hinge shaft 41; the second hinge shaft 42; the third hinge shaft 43; the first central axis I; the second central axis E; the third central axis F; the guiding portion 50; the guiding track line S; the first guiding position I1; the second guiding position I2; the third guiding position I3; the fourth guiding position I4; the fifth guiding position I5; the sixth guiding position I6; the guiding portion 60; the guiding track line K; the first guiding section K1; the second guiding section K2; the third guiding section K3; the fourth guiding section K4; the fifth guiding section K5; the sixth guiding section K6; the seventh guiding section K7; the first connecting position a; the second connecting position b; the third connecting position c; the fourth connecting position d; the fifth connecting position e; the sixth connecting position f; the seventh connecting position g; the side sealing strip 3; the plate body 81; the locking hook 82; the root connecting portion 83; the hanging portion 84; the door corner portion 7; the top plate 71; the side plate 72; the receiving space 70; the flipping beam 9; the guiding block 90; the guiding rail 91. Detailed implementation manners

[0124] Next, the present invention will be specifically described by way of exemplary embodiments. However, it should be understood that, without further recitation, elements, structures, and features in one embodiment can also be beneficially incorporated into other embodiments.

[0125] 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 of the present invention.

[0126] The terms "first", "second", "third", "fourth", "fifth" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", "fourth", "fifth" may explicitly or implicitly include one or more of such features.

[0127] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0128] Hereinafter, embodiments of the present application will be described in detail with reference to the drawings. In the drawings, the side facing the user when the refrigerator is in use is defined as the front side, and the opposite side is defined as the rear side.

[0129] Embodiment 1

[0130] Referring to Figure 1 , the refrigerator includes a cabinet 10 having a storage compartment, a door 30 connected to the cabinet 10 to open and close the storage compartment, and a refrigeration device for supplying cold air to the storage compartment. The cabinet 10 includes an inner liner defining the storage compartment, an outer shell connected to the outside of the inner liner to form the appearance of the refrigerator, and a heat insulation layer disposed between the inner liner and the outer shell to insulate the storage compartment.

[0131] 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.

[0132] A pick-up and drop-off opening is formed at the front end of the storage compartment for placing food into or taking food out of the storage compartment; a rotatable door body 30 is provided on the box body 10 to open or close the pick-up and drop-off opening of the storage compartment. Specifically, the door body 30 is rotatably connected to the box body 10 through a hinge assembly located at the upper part and a hinge assembly located at the lower part to open or close the pick-up and drop-off opening.

[0133] Specifically, in this embodiment, the box body 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 box body 10); wherein, the door body 30 has a front door wall 31 that is away from the box body 10 when the door body 30 is closed, a door rear wall 33 arranged opposite to the front door wall 31, and a door side wall 32 that is close to the hinge assembly and connected to the front door wall 31. Among them, the arrangement direction of the first body side wall and the second body side wall is defined as the transverse direction; that is, the direction from the first body side wall to the second body side wall or from the second body side wall to the first body side wall is the transverse direction; it is also equivalent to the normal direction of the first body side wall being the transverse direction.

[0134] Among them, the front door wall 31 and the door side wall 32 of the door body 30 intersect to form a first side edge W, and the door side wall 32 and the door rear wall 33 intersect to form a second side wall N. When the door body 30 is closed, the first side edge W is located on the side of the second side edge N away from the box body 10. It should be noted that the intersection line of the front door wall 31 and the door side wall 32 is the theoretical first side edge W (similarly, the theoretical second side edge N is the intersection line of the door side wall 32 and the door rear wall 33); in actual production and processing settings, the intersection of the front door wall 31 and the door side wall 32 is provided with a rounded corner transition, so a curved surface is formed at the intersection of the front door wall 31 and the door side wall 32; on the curved surface at the intersection of the front door wall 31 and the door side wall 32, any straight line extending along the height direction of the door body 30 can represent the first side edge W (the same applies to the second side edge N). In this application, for the convenience of description, the theoretical first side edge W and the theoretical second side edge N are used for description to illustrate the movement trend of the first side edge W or the second side edge N during the opening process of the door body 30. In addition, a plane passing through the centroid of the door body 30 and parallel to the front door wall 31 is denoted as the centroid plane P; during the opening process of the door body 30, the centroid plane P moves with the door body 30, and the centroid plane P remains stationary relative to the door body. In this embodiment, the centroid plane P determined with the geometric center of the door body 30 as the centroid is used for description.

[0135] 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 fits closely with the front end surface of the box body 10 surrounding the pick-up and drop-off opening to effectively seal the connection between the door body 30 and the box body 10, thereby ensuring that the door body 30 seals the pick-up and drop-off opening and preventing cold air from leaking out. Optionally, the door seal 5 is annular; the door seal 5 includes a side seal close to the door side wall 32, and the edge of the door seal 5 (side seal) close to the door side wall 32 and away from the front door wall 31 is denoted as the side seal edge H.

[0136] The hinge assembly includes a first hinge member and a second hinge member. The first hinge member is engaged with the second hinge member and can rotate relative to each other. The first hinge member is disposed on the cabinet 10 and adjacent to the first side wall of the cabinet. The second hinge member is disposed at the end of the door 30 adjacent to the first hinge member. The first hinge member is engaged with the second hinge member to allow the cabinet 10 and the door 30 to rotate relative to each other. Wherein, the second hinge member is adjacent to the door side wall 32 of the door 30. For example, when the first hinge member is located on the right side of the cabinet 10, the right side of the door 30 is the door side wall 32 when the door 30 is closed; when the first hinge member is located on the left side of the cabinet 10, the left side wall of the door 30 is the door side wall 32 when the door 30 is closed.

[0137] Referring to Figures 2 to 4 , the first hinge member includes: a hinge plate 40 and a plurality of hinge shafts formed on the hinge plate 40. Specifically, the hinge plate 40 includes a connecting portion 401 connected to the cabinet 10 and an extending portion 402 extending forward from the connecting portion 401 and being in the shape of a horizontal plate. The connecting portion 401 can be fastened to the top wall of the cabinet 10 by fasteners such as screws, pins and bolts. Specifically, for the hinge at the upper end of the door 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 30, the connecting portion 401 is connected to the front end face of the cabinet 10. Wherein, 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; wherein, the second hinge shaft 42 is located on the side of the first hinge shaft 41 adjacent to the first side wall of the cabinet, and the third hinge shaft 43 is located on the side of the first hinge shaft 41 away from the first side wall of the cabinet.

[0138] The second hinge member includes: a guiding portion 50 and a guiding part 60 located at the end of the door 30 adjacent to the first hinge member; wherein, the first hinge shaft 41 is adapted to the guiding portion 50, and both the second hinge shaft 42 and the third hinge shaft 43 are adapted to the guiding part 60; during the process of the door 30 rotating open or closed, the first hinge shaft 41 moves relative to the guiding portion 50, and both the second hinge shaft 42 and the third hinge shaft 43 move relative to the guiding part 60.

[0139] 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 4021 connected to the cabinet 10 through the connecting portion 401 to form a defining shaft for guiding the movement of the door 30. Specifically, the first hinge shaft 41, the second hinge shaft 42 and the third hinge shaft 43 extend in the vertical direction (the height direction of the cabinet 10) to be adapted to the guiding portion 50 or the guiding part 60 provided on the door 30.

[0140] In this embodiment, the description is given by taking as an example that the first hinge shaft 41, the second hinge shaft 42 and the third hinge shaft 43 are provided on the extension parts 402 at the upper and lower ends of the door body 30, and the guiding parts 50 and the guiding parts 60 are provided at the upper and lower ends of the door body 30. It should be noted that the setting of this embodiment is not limited by 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 box body 10.

[0141] In this embodiment, as Figures 2 - Fig. 6 shown, the plane where the side surface (the first body side wall) of the box body 10 close to the hinge plate 40 is located is defined as the reference plane M0, and the side of the reference plane M0 away from the storage inner cavity is denoted as the outer side; on the contrary, the side of the reference plane M0 close to the storage inner cavity is denoted as the inner side. As Figure 2 shown, in some embodiments of the present application, in the projection of 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 first body side wall; that is, in the projection of 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, the processing accuracy is ensured, thereby ensuring the assembly accuracy, and the smoothness of the rotation and opening of the door body 30 is increased.

[0142] In this embodiment, the trajectory line of the relative movement of the guiding part 50 guiding the central axis of the first hinge shaft 41 is denoted as the guiding trajectory line S, and the trajectory line of the relative movement of the guiding part 60 guiding the second hinge shaft 42 is denoted as the guiding trajectory line K; the centroid of the guiding trajectory line K is denoted as the guiding centroid O. In this embodiment, the guiding trajectory line K surrounds its guiding centroid O. In this embodiment, the guiding trajectory line S is a straight line, and the guiding trajectory line K is a ring; that is, during the opening process of the door body 30, the guiding part 50 guides the movement of the first hinge shaft 41, so that the central axis of the first hinge shaft 41 moves along the guiding trajectory line S in a straight line, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guiding part 60 and move relative to the guiding trajectory line K.

[0143] In some embodiments of the present application, the guiding trajectory line S extends linearly from the end close to the door side wall 32 and the door front wall 31 to the direction away from the door side wall 32 and the door front wall. Among them, the included angle between the guiding trajectory line S and the door front wall 31 is denoted as θ; θ belongs to any value in the range of 20° to 45°. Optionally, θ = 30°. The above setting of the angle of θ can control the instantaneous displacement direction of the door body 30 during the opening process through the cooperation between the guiding part 50 and the first hinge shaft 41, so as to control the lateral displacement of the door body 30 relative to the box body 10. During the opening process of the door body 30, the first hinge shaft 41 moves relative to the door body 30 along a straight line at an angle of θ with the door front wall 31, effectively controlling the displacement of the door body 30 in the direction perpendicular to the door side wall 32 and the direction perpendicular to the door front wall.

[0144] In some embodiments of the present application, the guiding trajectory line K surrounds the guiding track line S. In the projection on the plane where the top wall of the box body 10 is located, the guiding trajectory line K surrounds the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43.

[0145] As a settable manner, the guiding part 50 is set as a guiding groove, and the guiding part 60 is set as a guiding groove. The central trajectory line of the guiding groove is the guiding track line S. The groove wall of the guiding groove is annular to define an annular guiding trajectory line K. In the projection on the plane where the top wall of the box body 10 is located, the groove wall of the guiding groove surrounds the guiding groove, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43. During the opening process of the door body 30, the first hinge shaft 41 moves linearly relative to the guiding groove, and the second hinge shaft 42 and the third hinge shaft 43 both move relative to the guiding groove, so that during the opening process of the door body 30, there is a certain displacement in the transverse direction.

[0146] In the present invention, the guiding part 60 defines a closed annular guiding trajectory line. Optionally, the guiding groove is an annular closed groove. The above annular guiding part 60 has high strength, good machinability, and good machining precision; in addition, the annular setting form makes the guiding part 60 have excellent detectability to ensure precision; furthermore, the annular guiding part 60 has good deformation resistance ability to effectively ensure its precision. Combined with the linear guiding part 50, the first hinge shaft 41 fixed to the box body 10 cooperates with the linear guiding part 50, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guiding part 60, which can accurately control the movement of the door body 30, so that the door body 303 has a certain displacement in the transverse direction to meet the requirements of various applications; and the stability of the movement of the door body 30 is increased, improving the user experience.

[0147] In some embodiments of the present application, corresponding to the setting that the guiding track line S is a straight line inclined relative to the front wall 31 of the door, the guiding groove is a straight groove, and the guiding groove is inclined relative to the side wall 32 of the door. The guiding groove extends from its end close to the first side edge W in a direction away from the front wall 31 and the side wall 32 of the door. Wherein, the included angle between the guiding groove and the front wall 31 of the door is θ. The above setting increases the detectability of the machining precision of the guiding part 50, is convenient for detection and adjustment to ensure precision, so as to improve the accuracy of the movement control of the door body 30.

[0148] In some embodiments of the present application, the end of the door body 30 close to the side wall 32 of the door is recessed towards the inner cavity side of the door body 30 to form a mounting table, and the second hinge member (the guiding part 50 and the guiding part 60) is arranged on the mounting table.

[0149] As a settable manner, such as Figures 5 - Fig. 6As shown, the extension portion 402 of the hinge plate 40 includes a first extension plate 4021 and a second extension plate 4022; wherein, one end of the first extension plate 4021 is connected to the connecting portion 401, and the other end is connected to the second extension plate 4022. The first extension plate 4021 has a first side close to the first body side wall. Along the direction from the connecting portion 401 to the second extension plate 4022, the first side extends obliquely away from the first body side wall. The second extension plate 4022 has a second side close to the pick-and-place opening side. The connection between the first side and the second side defines an avoidance opening on the side of the extension portion 402 close to the first body side wall. The opening end of the avoidance opening faces the first body side wall. When the door body 30 is opened, the avoidance opening allows the part of the door body 30 close to the door side wall 32 to gradually enter the avoidance opening, ensuring that the door body 30 does not interfere with the extension portion 402 when opened, so that the door body 30 can be opened to a larger angle.

[0150] As another settable manner, the door body 30 has a door corner portion 7 close to the door side wall 32; the door corner portion 7 has a top plate 71 and a side plate 72 forming a part of the door side wall 32. The top plate 71, the side plate 72 and the mounting table jointly define a receiving space 70. When the door body 30 is closed, at least a part of the extension portion 402 of the first hinge member is received in the receiving space 70 to cooperate with the second hinge member. The above-mentioned door corner portion 7 shields the second hinge member and the extension portion 402 of the first hinge member when the door body 30 is closed, reducing dust from falling in, and effectively ensuring the smoothness of the cooperation of the hinge assembly. With the above-mentioned setting of the avoidance opening, when the door body 30 is opened, the interference between the door body 30 (the side plate 72 of the door corner portion 7 or the area of the front door wall 31 close to the first side edge W) and the extension portion 402 is avoided, effectively ensuring that the door body 30 can be opened to a larger angle.

[0151] In some embodiments of the present application, when the door body 30 is closed, relative to the plane of the pick-and-place opening, the guiding portion 50 is close to the front door wall 31. The first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are arranged at one end of the extension portion 402 away from the pick-and-place opening. Optionally, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are arranged on the second extension plate 4022, so that there is enough space on the extension portion 402 to set the avoidance opening to avoid interference when the door body 30 is opened, and thus ensure the opening angle of the door body 30. On the other hand, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are arranged on the second extension plate 4022 away from the pick-and-place opening, applying a force to the position of the door body 30 close to the front door wall 31 when in the closed state, and cooperating with the force of the hinge plate 40, increasing the overall supporting effect of the first hinge member on the door body 30, and preventing the door body 30 from sinking under the action of gravity and causing deformation and displacement of the door body 30.

[0152] As a configurable manner, 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.

[0153] As a configurable manner, 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 manner, 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 access opening.

[0154] In some embodiments of the present application, the guiding track line K includes a first guiding section K1, a second guiding section K2, a third guiding section K3, a fourth guiding section K4, a fifth guiding section K5, a sixth guiding section K6 and a seventh guiding section K7 that are connected end to end in sequence; that is, the guiding track line K is in a closed ring shape, and the guiding groove is an annular closed groove to effectively limit the movement of the second hinge shaft 42 and the third hinge shaft 43, and at the same time prevent the second hinge shaft 42 and the third hinge shaft 43 from disengaging from the guiding groove. Among them, the connection point of the seventh guiding section K7 and the first guiding section K1 is denoted as the first connection position a, the connection point of the first guiding section K1 and the second guiding section K2 is denoted as the second connection position b, the connection point of the second guiding section K2 and the third guiding section K3 is denoted as the third connection position c, the connection point of the third guiding section K3 and the fourth guiding section K4 is denoted as the fourth connection position d, the connection point of the fourth guiding section K4 and the fifth guiding section K5 is denoted as the fifth connection position e, the connection point of the fifth guiding section K5 and the sixth guiding section K6 is denoted as the sixth connection position f, and the connection point of the sixth guiding section K6 and the seventh guiding section K7 is denoted as the seventh connection position g.

[0155] As a configurable manner, when the door body 30 is closed, the second hinge shaft 42 cooperates with the seventh guiding section K7 of the guiding groove. That is, when the door body 30 is closed, the second hinge shaft 42 is located on the side of the first connection position a away from the first guiding section K1. When the door body 30 is opened from the closed state, the second hinge shaft 42 first approaches the first connection position a along the seventh guiding section K7.

[0156] Among them, the second connection position b is located on the side of the first connection position a close to the door side wall 32 and the front door wall 31;

[0157] The third connection position c is located on the side of the second connection position b away from the front door wall 31 and the door side wall 32; in this embodiment, the third connection position c is located on the side of the first connection position a away from the door side wall 32 and close to the front door wall 31;

[0158] 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. In this embodiment, the fourth connection position d is located on the side of the first connection position a close to the front door wall 31.

[0159] 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.

[0160] The sixth connection position f is located on the side of the fifth connection position e close to the door rear wall 33 and the door side wall 32. In this embodiment, the sixth connection position f is located on the side of the second connection position b away from the door side wall 323. As a settable manner, the sixth connection position f is located on the side of the third connection position c close to the door side wall 32.

[0161] The seventh connection position g is located on the side of the sixth connection position f close to the door front wall 31 and the door side wall 32. In this embodiment, the seventh connection position g is located on the side of the first connection position a close to the door side wall 32 and the door rear wall 33.

[0162] That is, in the projection on the plane where the door front wall 31 is located, the seventh connection position g, the first connection position a, the second connection position b, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are successively away from the door side wall 32.

[0163] In the projection on the plane where the door side wall 32 is located, the second connection position b, the third connection position c, the fourth connection position d, the first connection position a, the fifth connection position e, the seventh connection position g, and the sixth connection position f are successively away from the door front wall 31. As a settable manner, in the projection on the plane where the door side wall 32 is located, relative to the first connection position a, the fifth connection position e is closer to the seventh connection position g.

[0164] As a settable manner, in the projection on the plane where the door side wall 32 is located, the fifth connection position e and the seventh connection position g are adjacent in position, and the fourth connection position d and the first connection position a are adjacent in position. Optionally, in the projection on the plane where the door side wall 32 is located, the distance between the fifth connection position e and the seventh connection position g is less than 1.5 mm; the distance between the first connection position a and the fourth connection position d is less than 1.5 mm.

[0165] As a settable manner, in the projection on the plane where the door side wall 32 is located, the projections of the connection positions, namely the second connection position b, the third connection position c, the fourth connection position d, the first connection position a, the fifth connection position e, the seventh connection position g, and the sixth connection position f, are successively denoted as b`, c`, d`, a`, e`, g`, and f`; among them, the distance between two projection points is represented by their two letters, for example, the distance between the projection point of the sixth connection position f and the projection point of the first connection position a is denoted as f`a`. Among them, f`a`:b`a` belongs to any value in 4 to 6; a`g`:f`a` belongs to any value in 0.5 to 0.7; d`c`:c`b` belongs to any value in 1.8 to 2.2.

[0166] In the projection on the plane where the front door wall 31 is located, the projections of the respective connection positions, namely the second connection position b, the third connection position c, the fourth connection position d, the first connection position a, the fifth connection position e, the seventh connection position g, and the sixth connection position f, are denoted as b'', c'', d'', a'', e'', g'', and f'' in sequence. Among them, the distance between two projection points is represented by the two letters. For example, the distance between the projection point of the sixth connection position f and the projection point of the first connection position a is denoted as f''a''. b''f'':f''e'' belongs to any value within 0.6 to 0.7; a''b'':b''d'' belongs to any value within 0.3 to 0.4; a''b'':b''c'' belongs to any value within 1 to 1.2; e''d'':c''d'' belongs to any value within 0.2 to 0.3; a''g'':a''b'' belongs to any value within 0.4 to 0.6.

[0167] The relative position settings of the respective connection positions in the above-mentioned projection in the plane where the door side wall 32 is located and the projection in the plane where the front door wall 31 is located make the guiding track line K smoother; correspondingly, when the door body 30 is opened, the movement of the second hinge axis 42 and the third hinge axis 43 relative to the guiding track line K is smoother.

[0168] In some embodiments of the present application, along the direction of approaching the second connection position b from the first connection position a, the first guiding section K1 extends in a direction away from the door side wall 32 and closer to the front door wall 31. As another alternative setting method, along the direction of approaching the second connection position b from the first connection position a, the first guiding section K1 first extends in a direction closer to the door side wall 32 and the front door wall 31, and then extends in a direction away from the door side wall 32 and closer to the front door wall 31; in this setting, the point with the minimum distance between the first guiding section K1 and the door side wall 32 is denoted as the convex point a1.

[0169] Along the direction of approaching the third connection position c from the second connection position b, the second guiding section K2 extends in a direction away from the door side wall 32 and the front door wall 31;

[0170] Along the direction of approaching the fourth connection position d from the third connection position c, the third guiding section K3 extends in a direction away from the door side wall 32 and the front door wall 31. Among them, for every unit increase in the distance between the second guiding section K2 and the front door wall 32, the increase amount of the distance between the second guiding section K2 and the door side wall 32 is denoted as ζ1; for every unit increase in the distance between the third guiding section K3 and the front door wall 32, the increase amount of the distance between the third guiding section K3 and the door side wall 32 is denoted as ζ2; ζ1 < ζ2. That is, relative to the change trend of the second guiding section K2, the third guiding section K3 moves away from the door side wall 32 more rapidly.

[0171] Along the direction approaching from the fourth connection position d to the fifth connection position e, the fourth guiding section K4 first extends in a direction away from the door side wall 32 and the front door wall 31, and then extends in a direction approaching the door side wall 32 and away from the front door wall 31; in this setting, the point with the maximum distance between the fourth guiding section K4 and the door side wall 32 is denoted as the convex point d1; among them, the convex point d1 is the point with the maximum distance between the guiding track line K and the door side wall 32.

[0172] Along the direction approaching from the fifth connection position e to the sixth connection position f, the fifth guiding section K5 extends in a direction approaching the door side wall 32 and away from the front door wall 31; among them, the guiding track line K bulges towards its guiding centroid O at the fifth connection position e to transition and connect the fourth guiding section K4 and the fifth guiding section K5.

[0173] Along the direction approaching from the sixth connection position f to the seventh connection position g, the sixth guiding section K6 extends in a direction approaching the door side wall 32 and the front door wall 31;

[0174] Along the direction approaching from the seventh connection position g to the first connection position a, the seventh guiding section K7 extends in a direction away from the door side wall 32 and approaching the front door wall 31, and the seventh guiding section K7 bulges in a direction away from the guiding centroid O.

[0175] That is, in this embodiment, the second connection position b is the point where the guiding track line K has the minimum distance from the front door wall 31, the convex point d1 is the point where the guiding track line K has the maximum distance from the door side wall 32, the sixth connection position f is the point where the guiding track line K has the maximum distance from the front door wall 31, and the seventh connection position g is the point where the guiding track line K has the minimum distance from the door side wall 32.

[0176] The part where the fourth guiding section K4 extends in a direction away from the door side wall 32 and the front door wall 31 is denoted as the first segment (dd1), and the part where the fourth guiding section K4 extends in a direction approaching the door side wall 32 and away from the front door wall 31 is denoted as the second segment (d1e).

[0177] Among them, along the direction pointing from the front door wall 31 to the rear door wall 33, the rate of decrease in the distance between the second segment of the fourth guiding section K4 and the door side wall 32 is denoted as λ1, and the rate of decrease in the distance between the fifth guiding section K5 and the door side wall 32 is denoted as λ2; among them, λ1 < λ2. That is, relative to the door side wall 32, the change trend of the fourth guiding section K4 is gentler than that of the fifth guiding section K5.

[0178] Among them, along the direction from the front door wall 31 to the rear door wall 33, the rate at which the distance between the first segment of the fourth guiding segment K4 and the door side wall 32 increases is denoted as λ3, and the rate at which the distance between the third guiding segment K3 and the door side wall 32 increases is denoted as λ4, where λ3 < λ4. That is, relative to the door side wall 32, the changing trend of the distance between the first segment of the fourth guiding segment K4 and the door side wall 32 is gentler than that of the third guiding segment K3. The guiding trajectory line K extends rapidly away from the door side wall 32 along the third guiding segment K3 from the third connection position c to the fourth connection position d, and starts to extend rapidly away from the front door wall 31 along the first segment of the fourth guiding segment K4 from the fourth connection position d to the fifth connection position e, thereby forming a corner where the closed annular guiding trajectory line K is close to the front door wall 31 and far from the door side wall 312 in the area near the fourth connection position d.

[0179] Among them, the sixth guiding segment K6 includes an inflection point h located between the sixth connection position f and the seventh connection position g. Along the direction from the rear door wall 33 to the front door wall 31, the rate at which the distance between the fh segment of the sixth guiding segment K6 and the door side wall 32 decreases is denoted as λ5, and the rate at which the distance between the hg segment of the sixth guiding segment K6 and the door side wall 32 decreases is denoted as λ6, where λ6 < λ5. That is, relative to the door side wall 32, the changing trend of the distance between the hg segment of the sixth guiding segment K6 and the door side wall 32 is gentler than that of the distance between the fh segment and the door side wall 32. Among them, the inflection point h is the changing point of the increasing rate of the distance between the guiding trajectory line K and the door side wall 32. The guiding trajectory line K approaches the door side wall 32 rapidly along the sixth guiding segment K6 from the sixth connection position f to the inflection point h, and starts to extend rapidly close to the front door wall 31 along the sixth guiding segment K6 from the inflection point h to the seventh connection position g, thereby forming a corner where the closed annular guiding trajectory line K is far from the front door wall 31 and the door side wall 321 in the area near the inflection point h.

[0180] As an implementable manner, when the door body 30 is closed, the second hinge shaft 42 is in contact and cooperation with the first connection position a of the guiding groove; the third hinge shaft 43 is in contact and cooperation with the fourth connection position d of the guiding groove. Correspondingly, at this time, the first hinge shaft 41 is located on the guiding trajectory line S.

[0181] As a configurable manner, when the door body 30 is closed, the second hinge shaft 42 is in interference fit with one end of the seventh guiding section K7 of the guiding groove close to the front door wall 31; the third hinge shaft 43 is in interference fit with one end of the third guiding section K3 of the guiding groove away from the door side wall 32. When the door body 30 continues to move in the closing direction after being closed to an opening angle of 0°, the above setting of the guiding 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 as to prevent the door body 30 from continuing to move in the closing direction from the closed state, and can avoid the door body 30 being over-closed due to excessive force and then bouncing open; and enable the door body 30 to stably stay in the closed state, increasing the stability of the door body 30 staying in the closed state.

[0182] Specifically configurable, when the door body 30 is closed, the side wall of the third hinge shaft 43 away from the door side wall 32 and close to the front door wall 31 cooperates with the guiding groove; when the door body 30 continues to move in the closing direction after being closed to an opening angle of 0°, the distance between the guiding track line S and the third guiding section K3 is not enough to allow the third hinge shaft 43 to move relative to the third guiding section K3.

[0183] In some embodiments of the present application, the guiding track line S has a starting guiding position I0, a first guiding position I1, a second guiding position I2, a third guiding position I3, a fourth guiding position I4, a fifth guiding position I5, a sixth guiding position I6, a seventh guiding position I7, an eighth guiding position I8, a ninth guiding position I9, and a tenth guiding position I10.

[0184] In some embodiments of the present application, the fifth guiding position I5 is the end point position of the guiding track line S close to the door side wall 32, and the tenth guiding position I10 is the end point position of the guiding track line S away from the door side wall 32; the tenth guiding position I10 is located on the side of the fifth guiding position I5 away from the door side wall 32 and the front door wall 31. In addition, the starting guiding position I0 is located between the fifth guiding position I5 and the tenth guiding position I10, and the starting guiding position I0, the first guiding position I1, and the second guiding position I2 are sequentially away from the door side wall 32. The second guiding position I2, the third guiding position I3, the fourth guiding position I4, and the fifth guiding position I5 are sequentially close to the door side wall 32, and the fifth guiding position I5, the sixth guiding position I6, the seventh guiding position I7, the eighth guiding position I8, the ninth guiding position I9, and the tenth guiding position I10 are sequentially away from the door side wall 32. In this embodiment, the starting guiding position I0 is close to the fifth guiding position I5 relative to the tenth guiding position I10.

[0185] 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.

[0186] During the opening process of the door body 30, the first hinge shaft 41 moves relative to the guiding groove, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guiding groove and move relative to the guiding groove.

[0187] Among them, within the projection of the plane where the top wall of the box body 10 is located, the first central axis I, the second central axis E, and the third central axis F form an axis triangle IEF.

[0188] As a settable manner, the axis triangle IEF is an obtuse triangle; the angle ∠FIE belongs to any value within 172° - 178°; ∠IEF belongs to any value within 3.5° - 4°; that is, the axis triangle IEF is an obtuse triangle with one angle approaching 180°. The above setting of the relative positions of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 to form an obtuse triangle enables both the second hinge shaft 42 and the third hinge shaft 43 to cooperate with the guiding groove, and the first hinge shaft 41 to cooperate with the guiding groove, increasing the assembly dimension of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 for the door body 30 (guiding groove). The axis triangle IEF formed by the first hinge member is in surface fit with the guiding groove surface formed by the second hinge member; that is, the cooperation dimension of the surface fit between the first hinge member and the second hinge member effectively improves the cooperation stability between the first hinge member and the second hinge member. In addition, the second hinge shaft 42 and the third hinge shaft 43 are respectively located on opposite sides of the first hinge shaft 41 and cooperate with the guiding groove, increasing the stability.

[0189] As a settable manner, the longest side EF of the obtuse triangle-shaped axis triangle IEF is located on the side of the vertex I of the axis triangle IEF away from the access opening. The above setting enables the second hinge shaft 42 and the third hinge shaft 43 with a larger distance to cooperate with the guiding groove on the side away from the access opening to support the door body 30, further increasing the support stability of the three hinge shafts for the door body 30. At the same time, it reduces the dimension of the axis triangle IEF in the direction perpendicular to the access opening, and 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. Specifically, it can be set that in the projection of the plane where the top wall of the box body is located, the straight line IE where the first central axis I and the second central axis E are located is parallel to the access opening. In addition, it can be set that 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.

[0190] In this embodiment, the guiding groove and the guiding slot 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 guiding groove or the guiding slot relative to the shaft triangle IEF is equivalent to the movement of the guiding groove or the guiding slot 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 guiding groove or the guiding slot is used to represent the door body 30.

[0191] When the door body 30 is opened, there is a relative movement relationship between the first hinge shaft 41 and the guiding slot, and between the second hinge shaft 42 or the third hinge shaft 43 and the guiding groove; in this embodiment, for the convenience of description, the door body 30 (guiding groove or guiding slot) is used as the stationary reference object, and the movement of the first hinge shaft 41 relative to the guiding slot and the movement of the second hinge shaft 42 or the third hinge shaft 43 relative to the guiding groove are used to illustrate the specific process of opening the door body 30.

[0192] As Figures 7 - Fig. 33 shown, the movement of the shaft triangle IEF relative to the guiding groove / guiding slot is equivalent to the movement of the box body 10 (hinge plate 40) relative to the door body 30.

[0193] Among them, the movement of the first hinge shaft 41 relative to the guiding slot 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 guiding 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.

[0194] 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 = G10 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 = G10.

[0195] When the door body 30 is opened from the closed state to the maximum angle Gmax (=G10), when the door body 30 rotates to a specific angle, the relative positions of the first hinge shaft 41 relative to the guiding slot, and the second hinge shaft 42 and the third hinge shaft 43 relative to the guiding groove are as follows:

[0196] 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°;

[0197] As Figure 7As shown in the figure, 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 seventh guiding section K7 of the guiding track line K, and the third hinge axis 43 cooperates with the fourth connecting 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 wall 31 of the door; that is, the centroid plane P is located on the side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the front wall 31 of the door. That is, when the door body 30 is closed, the centroid plane P is not between the hinge axes.

[0198] As Figure 8 shown in the figure, 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 away from the door side wall 32; the second hinge axis 42 cooperates with the seventh guiding section K7, and the second hinge axis 42 moves relative to the seventh guiding section K7 in the direction approaching from the seventh connecting position g to the first connecting position a; the third hinge axis 43 cooperates with the fourth guiding section K4, and the third hinge axis 43 moves relative to the fourth guiding section K4 in the direction approaching from the fourth connecting position d to the fifth connecting 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 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 approaching the front wall 31 of the door, and the third hinge axis 43 moves relative to the guiding groove in the direction away from the door side wall 32 and the front wall 31 of the door.

[0199] Above, when the opening angle φ = G1 ∈ (0°, G2) of the door body 30, the movement trends in this opening angle range are consistent; the only difference is that: the opening angles are different, the positions of the first hinge axis 41 relative to the guiding track line S are different, the positions of the second hinge axis 42 relative to the seventh guiding section K7 of the guiding track line K are different, and the positions of the third hinge axis 43 relative to the fourth guiding section K4 of the guiding track line K are different. Thus, when the opening angle φ = G1 ∈ (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 8 and Figure 24 shown in the figure, using φ = G1 ∈ (0°, G) to represent the position within this opening angle range for comparison with other states when the door body 30 is opened.

[0200] AsFigure 8 and Figure 24 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; wherein, the first guiding position I1 is located on the side of the initial guiding position I0 away from the door side wall 32 and the front door wall 31; the seventh guiding section K7 of the guiding track line K is matched with the second hinge axis 42, and the fourth guiding section K4 is matched with the third hinge axis 43. At this time (when 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. The centroid plane P is located on the side of the first triangle position I1E1F1 away from the front door wall 31; that is, the centroid plane P is located on the side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the front door wall 31. That is, when the door body 30 is closed, the centroid plane P is not between the hinge axes.

[0201] As Figure 9 , Figure 25 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; wherein, the second guiding position I2 is located on the side of the first guiding position I1 away from the door side wall 32 and the front door wall 31. The second hinge axis 42 is matched with the seventh guiding section K7 of the guiding track line K. At the same time, the third hinge axis 43 is matched with the fourth guiding section K4. At this time (when 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 is located on the side of the second triangle position I2E2F2 away from the front door wall 31; that is, the centroid plane P is located on the side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the front door wall 31. That is, when the door body 30 is closed, the centroid plane P is not between the hinge axes. In some embodiments of the present application, during the process of the above door body 30 being opened from the closed state to G2, the first hinge axis 41 moves linearly in the direction away from the door side wall 32 and the front door wall 31, and when the door body 30 continues to open from G2, the movement direction of the first hinge axis 41 turns; that is, when the door body 30 continues to open from G2, the first hinge axis 41 will turn from moving linearly in the direction away from the door side wall 32 and the front door wall 31 to moving linearly in the direction close to the door side wall 32 and the front door wall 31.

[0202] As Figure 10 , Figure 26As shown, when φ = G3, the door body 30 rotates and opens to G3; the first central axis I is located at the third guiding position I3 of the guiding track line S; wherein, the third guiding position I3 is located on the side of the second guiding position I2 close to the door side wall 32 and the front door wall 31; the second hinge axis 42 cooperates with the first connection position a of the guiding track line K, and the fourth guiding section K4 cooperates with the third hinge axis 43. At this time (when φ = G3), the second central axis E is located at E3 relative to the door body 30, and the third central axis F is located at F3 relative to the door body 30; that is, the axis triangle IEF is located at the third triangle position I3E3F3 relative to the door body 30. The centroid plane P passes through the third triangle position I3E3F3; specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 away from the front door wall 31. That is, when the opening angle of the door body 30 is G4, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0203] Combined with Figures 8 - Fig. 10 , from the process of the door body 30 opening from G2 to G3, it can be seen that there exists φ = G`1 ∈ (G2, G3). When φ ∈ (G2, G`1], the centroid plane P is located on the side of the axis triangle IEF away from the front door wall 31; that is, the centroid plane P is located on the side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the front door wall 31. That is, when the opening angle of the door body 30 is φ ∈ (G2, G`1], the centroid plane P is not between the hinge axes. When φ ∈ (G`1, G3), the centroid plane P passes through the axis triangle IEF; that is, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 away from the front door wall 31. Combined with the process of the door body 30 opening from the closed state to G2, it can be obtained that when the opening angle of the door body 30 is not greater than G`1, the centroid plane P is not between the hinge axes; while when the opening angle of the door body 30 is greater than G`1, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0204] Such as Figure 11 、 Figure 27As 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 located on the side of the third guiding position I3 close to the door side wall 32 and the front door wall 31. The second hinge axis 42 cooperates with the first guiding section K1 of the guiding track line K, and the third hinge axis 43 cooperates with the fifth connecting position e. At this time (when φ = G4), 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. The centroid plane P passes through the fourth triangle position I4E4F4; specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front door wall 31. That is, when the opening angle of the door body 30 is G4, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0205] As Figure 12 , Figure 28 shown, when φ = G5, the door body 30 rotates and opens 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 close to the door side wall 32 and the front door wall 31, and is the end point position of the guiding track line S close to the door side wall 32; that is, the first hinge axis 41 moves to the end point of the guiding groove close to the door side wall 32. The second hinge axis 42 cooperates with the first guiding section K1 of the guiding track line K, and the third hinge axis 43 cooperates with the fifth guiding section K5. At this time (when 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. The centroid plane P 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, when the opening angle of the door body 30 is G5, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0206] As Figure 13As shown, when φ = G6 ∈ (G5, G7), the process of the door body 30 rotating from G5 to G7; during the above opening process, the first central axis I moves along the guiding track line S away from the door side wall 32 and the front wall 31 of the door; the second hinge axis 42 cooperates with the first guiding section K1, and the second hinge axis 42 moves relative to the first guiding section K1 in the direction approaching from the first connection position a to the second connection position b; the third hinge axis 43 cooperates with the fifth guiding section K5, and the third hinge axis 43 moves relative to the fifth guiding section K5 in the direction approaching from the fifth connection position e to the sixth connection position f. That is, during the process of the door body 30 rotating from G5 to G7, while the first hinge axis 41 moves relative to the guiding groove away from the door side wall 32 and the front wall 31 of the door, the second hinge axis 42 moves relative to the guiding groove away from the door side wall 32 and towards the front wall 31 of the door, and the third hinge axis 43 moves relative to the guiding groove continuously towards the door side wall 32 and away from the front wall 31 of the door.

[0207] Above, when the opening angle φ = G6 ∈ (G5, G7) 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 first guiding section K1 of the guiding track line K is different, and the position of the third hinge axis 43 relative to the fifth guiding section K5 of the guiding track line K is different. Thus, when the opening angle φ = G6 ∈ (G5, G7), 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 29 shown, using φ = G6 ∈ (G5, G7) to represent the position within this opening angle range for comparison with when the door body 30 is in other states.

[0208] Such as Figure 13 and Figure 29As shown, when the door body 30 is opened to G6, the door body 30 rotates and opens to G6; the first central axis I is located at the sixth guiding position I6 of the guiding track line S; among them, the sixth guiding position I6 is located on the side of the fifth guiding position I5 away from the door side wall 32 and the front door wall 31. The second hinge axis 42 cooperates with the first guiding section K1 of the guiding track line K, and the third hinge axis 43 cooperates with the fifth guiding section K5. At this time (when 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 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.

[0209] As Figure 14 and Figure 30 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 track line S; among them, the seventh guiding position I7 is located on the side of the sixth guiding position I6 away from the door side wall 32 and the front door wall 31; the second connecting position b of the guiding track line K cooperates with the second hinge axis 42, and the fifth guiding section K5 cooperates with the third hinge axis 43. At this time (when φ = G7), 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. During the process of the above-mentioned door body 30 rotating and opening from G6 to G8, the centroid plane P always passes through the seventh triangle position I7E7F7. 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 G7, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0210] As Figure 15 、 Figure 31As 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 and the front door wall 31. The second hinge axis 42 cooperates with the second guiding section K2, and the third hinge axis 43 cooperates with the fifth guiding section K5. At this time (when 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 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.

[0211] In some embodiments of the present application, φ = G8 = 90°. That is, when the door body 30 opens to 90°, the second hinge axis 42 contacts and cooperates with the second guiding section K2 of the guiding track line K. Optionally, when the door body 30 is closed, IE is parallel to the front door wall 31. That is, when the door body 30 is closed, the straight line I0E0 where the first central axis I and the second central axis E are located is parallel to the front door wall 31. Correspondingly, when the door body 30 opens to 90°, the straight line I8E8 where the first central axis I and the second central axis E are located is perpendicular to the front door wall 31.

[0212] In some embodiments of the present application, when the door body 30 opens to 90°, the second hinge axis 42 has an interference fit with the guiding track line K.

[0213] In some embodiments of the present application, when the door body 30 opens to 90°, the third hinge axis 43 has an interference fit with the fifth guiding section K5.

[0214] As above, when the door body 30 opens to 90°, under the action of the inner wall of the guiding groove on the second hinge axis 42 and the third hinge axis 43, the door body 30 can stop rotating in the current state.

[0215] As described above, along the direction approaching from the second connection position b to the third connection position c, the second guiding section K2 extends away from the door sidewall 32 and the door front wall 31; that is, along the direction approaching from the second connection position b to the third connection position c, the distance between the guiding track line K and the door front wall 31 gradually increases. At this time, the door body 30 is opened to 90°, the straight line where the first central axis I and the second central axis E are located is perpendicular to the door front wall 31, 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, while the distance between the second guiding section K2 and the door front wall 31 gradually increases along the direction approaching from the second connection position b to the third connection position c. When the door body 30 continues to open from 90°, the extension form of the second guiding section K2 has the tendency to prevent the relative movement between the second hinge shaft 42 and the guiding groove in the direction parallel to the door front wall 31 when the door body 30 is opened to 90°, so that the door body 30 can be stably stopped at the 90° state, facilitating the user to take and place items from the storage room after opening the door body 30 to 90°. By the user continuing to apply an external force, the door body 30 can overcome the resistance exerted by the third guiding section K3 and continue to open.

[0216] As a settable manner, when the door body 30 is opened to 90°, the second hinge shaft 42 cooperates with the second connection position b.

[0217] As Figure 16 and Figure 32 As shown, when the door body 30 is opened to G9, the first central axis I is located at the ninth guiding position I9 of the guiding track line S; among them, the ninth guiding position I9 is located on the side of the eighth guiding position I8 away from the door sidewall 32 and the door front wall 31; the second hinge shaft 42 cooperates with the third connection position c, and the third hinge shaft 43 cooperates with the sixth guiding section K6. At this time (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 triangle position I9E9F9 relative to the door body 30. The centroid plane P passes through the ninth triangle position I9E9F9; specifically, the centroid plane P is located between the first hinge shaft 41 and the third hinge shaft 43, and is located on the side of the first hinge shaft 41 away from the second hinge shaft 42 away from the door front wall 31. That is, when the opening angle of the door body 30 is G9, the centroid plane P is between the hinge shafts, and each hinge shaft cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0218] 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; wherein, the tenth guiding position I10 is located on the side of the ninth guiding position I9 away from the door side wall 32 and the front door wall 31; that is, the first hinge axis 41 moves to one end of the guiding groove away from the door side wall 31; the third guiding section K3 of the guiding track line K cooperates with the second hinge axis 42, and the sixth guiding section K6 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 triangle position I10E10F10 relative to the door body 30. The centroid plane P passes through the tenth triangle position I10E10F10; 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 G10, 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 is opened to G10, the second hinge axis 42 and the third hinge axis 43 are 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 G10, the first hinge axis 41 is located at the end of the guiding groove away from the door side wall 32 and the front door wall 31, and the third hinge axis 43 is in contact and cooperation with the sixth guiding section K6 of the guiding groove. As a settable manner, when the door body 30 is opened to G10, the third hinge axis 43 cooperates with the inflection point h of the guiding groove. As a settable manner, along the direction from the rear door wall 33 to the front door wall 31, the rate of decrease of the distance between the fh section of the sixth guiding section K6 and the door side wall 32 is greater than the rate of decrease of the distance between the hg section of the sixth guiding section K6 and the door side wall 32, so as to form a corner area in the area of the guiding groove close to the door side wall 32 and away from the front door wall 31.

[0221] In some embodiments of the present application, when the door body 30 is opened to G10, the first hinge axis 41 is located at the end of the guiding groove away from the door side wall 32 and the front door wall 31, and the third hinge axis 43 is in contact and cooperation with the sixth guiding section K6 of the guiding groove. As a settable manner, when the door body 30 is opened to G10, the third hinge axis 43 cooperates with the inflection point h of the guiding groove.

[0222] In this embodiment, along the direction approaching the seventh connection position g from the sixth connection position f, the sixth guiding section K6 extends in the direction approaching the door sidewall 32 and the front door wall 31. That is, along the direction from the door rear wall to the front door wall, the distance between the sixth guiding section K6 and the door sidewall 32 gradually decreases; when the door body 30 is opened to G10, the third hinge shaft 43 is in interference fit with the inflection point h of the sixth guiding section K6 of the guiding groove. The above settings can enable the door body 30 to stably stay in the G10 state, facilitating the user to take and place items in the storage room after opening the door body 30 to G10; and preventing the door body 30 from being overly opened under external force, resulting in damage to the hinge assembly. As an optional setting method, at this time, the third hinge shaft 43 is in interference fit with the inflection point h of the guiding groove.

[0223] Assume that the door body 30 continues to be opened from G10. The third hinge shaft 43 has a tendency to move in the direction approaching the seventh connection position g relative to the sixth guiding section K6, and the second hinge shaft 42 has a tendency to move in the direction approaching the fourth connection position d relative to the third guiding section K3. In this embodiment, along the direction approaching the seventh connection position g from the sixth connection position f, the sixth guiding section K6 extends in the direction approaching the door sidewall 32 and the front door wall 31, and the distance between the sixth guiding section K6 and the door sidewall 32 decreases. Among them, the extending tendency of the sixth guiding section K6 causes the third hinge shaft 43 to have a tendency to move away from the door sidewall 32 while keeping the first hinge shaft 41 moving along the guiding groove and the third hinge shaft 43 cooperating with the sixth guiding section K6. In this embodiment, since the first hinge shaft 41 is located at the end of the guiding groove away from the door sidewall 32 at this time, it cannot continue to move away from the door sidewall 32, thereby preventing the movement tendency of the third hinge shaft 43. Enabling the door body 30 to stably stay in the G10 state.

[0224] As an optional setting method, when the door body 30 is opened to G10, the third hinge shaft 43 is in interference fit with the sixth guiding section K6. Additionally, optionally, the second hinge shaft 42 is in interference fit with the third guiding section K3, further increasing the stability of the door body 30 to maintain its current state when opened to the maximum.

[0225] In some embodiments of the present application, when the door body 30 is opened to G10, the side of the third hinge shaft 43 close to the door sidewall 32 and away from the front door wall 31 is in interference fit with the end of the sixth guiding section K6 away from the front door 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 sidewall 32 decreases, and the rate of decrease in the distance between it and the door sidewall 32 is greater than the rate of decrease in the distance between the sixth guiding section K6 and the door sidewall 32, so that the door sidewall 32 of the door body 30 moves away from the first hinge shaft 41 relative to the hinge axis.

[0226] Combined with the settings of the door body 30 being opened to various angles as described above, in some embodiments of the present application, during the process of the door body 30 being opened from the closed state to G9, the second hinge shaft 42 and the third hinge shaft 43 are always in contact and cooperation with the inner wall of the guide groove.

[0227] As a settable setting, the contact and cooperation in the closed state of the door body 30, when the door body 30 is opened to 90°, and when the door body 30 is opened to the maximum angle Gmax (=G10) are all interference fits, so that the door body 30 can stop in its current state.

[0228] Above, 0° < G1 < G`1 < G2 < G3 < G4 < G5 < G6 < G7 < G8 < G9 < G10; G1, G2, G3, G4, G5, G6, G7, G8, G9, G10 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, and the tenth angle G10. In this embodiment, Gmax = G10. Optionally, G8 = 90°.

[0229] Combined with the state analysis of the door body 30 at different angles when it 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 located on the side of the axis triangle IEF away from the front door wall 31; that is, the centroid plane P is located on the side of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 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 located between the first hinge shaft 41 and the third hinge shaft 43, and on the side of the first hinge shaft 41 away from the second hinge shaft 42. That is, when the opening angle of the door body 30 is not greater than G`1, the centroid plane P is not between the hinge shafts; while when the opening angle of the door body 30 is greater than G`1, the centroid plane P is between the hinge shafts, and each hinge shaft cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0230] As a settable method, G`1:Gmax belongs to any value in 0.75 - 1. As a settable method, G`1 belongs to 25° - 27°, Gmax = G10 = 125°; it can be seen that during most of the opening stroke (75% - 80% of the stroke) of the door body 30, the centroid plane F is always located between the first hinge shaft 41 and the third hinge shaft 43, effectively ensuring stable force application during the entire opening process of the door body 30, and the opening of the door body 30 is more stable.

[0231] In summary, during the process of the door body 30 being opened from the closed state to Gmax = G10, the first hinge shaft 41 moves linearly along the guide groove first in a direction away from the door side wall 32 and the front door wall 31, then in a direction closer to the door side wall 32 and the front door wall 31, and then in a direction away from the door side wall 32 and the front door wall 31; the second hinge shaft 42 and the third hinge shaft 43 rotate clockwise relative to the guide groove throughout the process.

[0232] Among them, during the process of the door body 30 being opened from the closed state to G2, the first hinge shaft 41 moves linearly along the guide groove in a direction away from the door side wall 32 and the front door wall 31, the second hinge shaft 42 moves relative to the seventh guide section K7; the third hinge shaft 43 moves relative to the fourth guide section K4;

[0233] During the process of the door body 30 being opened from G2 to G5, the first hinge shaft 41 moves linearly along the guide groove in a direction closer to the door side wall 32 and the front door wall 31, the second hinge shaft 42 first moves relative to the seventh guide section K7, and then relative to the first guide section K1; the third hinge shaft 43 first moves relative to the fourth guide section K4, and then relative to the fifth guide section K5;

[0234] During the process of the door body 30 being opened from G5 to G10, the first hinge shaft 41 moves linearly along the guide groove in a direction away from the door side wall 32 and the front door wall 31, the second hinge shaft 42 first moves relative to the first guide section K1, then relative to the second guide section K2, and then relative to the third guide section K3; the third hinge shaft 43 first moves relative to the fifth guide section K5, and then relative to the sixth guide section K6.

[0235] In summary, φ = G2 and φ = G5 divide the process of the door body 30 being opened from the closed state to Gmax = G10 into three stages. Hereinafter, taking the door body 30 (guide groove / guide channel) as a stationary reference object, the relative movement conditions of these three stages are described from the perspective of the mating relationship between the first hinge shaft 41 relative to the guide groove, and the second hinge shaft 42 and the third hinge shaft 43 relative to the guide groove:

[0236] The first stage, combined with Figures 7 - Fig. 9 , as Figures 19 - Fig. 20 shown, is the process of the door body 30 being rotated and opened from the closed state to G2.

[0237] In this first stage, the door body 30 is successively opened from 0° through G1 to G2. During this process, the first central axis I moves linearly along the guiding track line S of the guide groove in a direction away from the door side wall 32 and the front door wall 31, the second hinge shaft 42 moves relative to the seventh guide section K7; the third hinge shaft 43 moves relative to the fourth guide section K4. When the door body 30 is opened to G2, the first hinge shaft 41 moves to the second guiding position I2 of the guiding track line S.

[0238] During the opening process of the first stage above, the door body 30 (guide groove / guide channel) is used as a reference for description.

[0239] When the door body 30 is opened from 0° to G2, the shaft triangle IEF rotates clockwise from the position of I0E0F0 and moves successively to the side close to the door side wall 32 and the front door wall 31 to the positions of I1E1F1 and I2E2F2 (I0E0F0 → I1E1F1 → I2E2F2). Since the shaft triangle IEF is arranged on the hinge plate 40, the shaft triangle IEF represents the movement of the box body 10. Then it is obtained that: taking the door body 30 (guide groove / guide channel) as a reference, the box body 10 opens clockwise relative to the door body 30 and moves a certain distance in the direction away from the door side wall 32 and the front door wall 31.

[0240] In summary, during the process of the door body 30 being opened from the closed state to G2, taking the door body 30 (guide groove / guide channel) as a reference, the box body 10 relative to the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the side away from the front door wall 31. According to the relativity of motion, taking the box body 10 as a reference, during the process of the door body 30 being opened from the closed state to G2, the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the side of the front door wall 31 relative to the box body 10.

[0241] In the second stage, in combination with Figures 9 - Fig. 12 , see Figure 19 、 Figure 21 as shown, the process of the door body 30 being rotated and opened from G2 to G5.

[0242] In this second stage, the door body 30 is successively opened from G2 through G3 and G4 to G5. During this process, the first central axis I moves in a straight line along the guiding track line S of the guide groove in the direction close to the door side wall 32 and the front door wall 31; the second hinge axis 42 first moves relative to the seventh guiding section K7 and then relative to the first guiding section K1; the third hinge axis 43 first moves relative to the fourth guiding section K4 and then relative to the fifth guiding section K5. When the door body 30 is opened to G5, the first hinge axis 41 moves to the end point of the guiding track line S close to the door side wall 32 and the front door wall 31 - the fifth guiding position I5.

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

[0244] When the door body 30 is opened from G2 to G5, the shaft triangle IEF rotates clockwise from the position of I2E2F2 and moves successively to the side close to the door side wall 32 and the front door wall 31 to the positions of I3E3F3, I4E4F4, and I5E5F5 (I2E2F2 → I3E3F3 → I4E4F4 → I5E5F5). Since the shaft triangle IEF is arranged on the hinge plate 40, the shaft triangle IEF represents the movement of the box body 10. Then it can be concluded that: taking the door body 30 (guide groove / guide slot) as a reference, the box body 10 opens clockwise relative to the door body 30 and moves a certain distance in the direction close to the door side wall 32 and the front door wall 31. To sum up, during the process of the door body 30 being opened from G2 to G5, taking the door body 30 (guide groove / guide slot) as a reference, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the side of the front door wall 31 relative to the door body 30. According to the relativity of motion, taking the box body 10 as a reference, during the process of the door body 30 being opened from G2 to G5, the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 and a displacement parallel to the door side wall 33 and pointing to the side away from the front door wall 31 relative to the box body 10.

[0245] In the third stage, combined with Figures 12 - Fig. 17 , as Figure 19 , Figures 22 - Fig. 23 shown, during the process of the door body 30 being rotated and opened from G5 to Gmax = G10.

[0246] In this third stage, the door body 30 is successively opened from G5 through G6, G7, G8, and G9 to G10. During this process, the first central axis I moves in a straight line along the guiding track line S of the guide groove in the direction away from the door side wall 32 and the front door wall 31; the second hinge axis 42 first moves relative to the first guiding section K1, then relative to the second guiding section K2, and then relative to the third guiding section K3; the third hinge axis 43 first moves relative to the fifth guiding section K5, and then relative to the sixth guiding section K6.

[0247] The opening process in the above third stage is described with the door body 30 (guide groove / guide slot) as a reference.

[0248] When the door body 30 is opened from G5 to G10, the shaft triangle IEF rotates clockwise from the position of I5E5F5 and moves successively to the positions of I6E6F6, I7E7F7, I8E8F8, I9E9F9, I10E10F10 (I6E6F6 → I7E7F7 → I8E8F8 → I9E9F9 → I10E10F10) on the side away from the door side wall 32 and the front wall 31 of the door. 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 a reference object, the box body 10 rotates clockwise relative to the door body 30 and moves a certain distance in the direction away from the door side wall 32 and the front wall 31 of the door.

[0249] In summary, during the process of the door body 30 being opened from G5 to G10, taking the door body 30 (guide groove / guide slot) as a reference object, the box body 10 relative to the door body 30 has a displacement parallel to the rear wall 33 of the door and pointing to the side away from the door side wall 32 and a displacement parallel to the side wall 33 of the door and pointing to the side away from the front wall 31 of the door. According to the relativity of motion, taking the box body 10 as a reference object, during the process of the door body 30 being opened from G5 to G10, the door body 30 relative to the box body 10 has a displacement parallel to the rear wall 33 of the door and pointing to the side of the door side wall 32 and a displacement parallel to the side wall 33 of the door and pointing to the side of the front wall 31 of the door.

[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 a reference object, the door body 30 relative to the box body 10 has a displacement component parallel to the rear wall 33 of the door and a displacement component parallel to the door side wall 32. Among them, the displacement component parallel to the rear wall 33 of the door is denoted as the displacement in the first direction , and the displacement component parallel to the door side wall 32 is the displacement in the second direction . In different opening stages of the door body 30, the directions of the displacement in the first direction and the displacement in the second direction will be different.

[0251] In the above first stage and the third stage, the displacement in the first direction points to the side of the door side wall 32, and the displacement in the second direction points to the side of the front wall 31 of the door. While in the second stage, the displacement in the first direction points to the side away from the door side wall 32, and the displacement in the second direction points to the side away from the front wall 31 of the door.

[0252] 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;

[0253] "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;

[0254] "Pointing to one side of the front door wall 31" means the direction from the door rear wall 33 to one side of the front door wall 31;

[0255] "Pointing to the side away from the front door wall 31" means the direction from the front door wall 31 to one side of the door rear wall 33. In addition, it should be noted that the above first-direction displacement , 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.

[0256] See Figures 34 - Fig. 39 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 (front side) of O away from the pick-and-place opening; OA is parallel to the plane where the pick-and-place opening is located, and A is on the side (outer side) of O away from the second body side wall. 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 door wall 31 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.

[0257] (1) As Figures 34 - Fig. 38 shown, during the process of the door body 30 opening from the closed state to 90°, during the counterclockwise rotation and opening of the door body 30 relative to the box body 10, the door side wall 32, the door rear wall 33, and the front door wall 31 also rotate counterclockwise during the opening process of this stage. In the plane of the top wall of the box body 10, along the direction from the second side edge N to the first side edge W (the door rear wall 33 pointing 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 rear wall 33 extends inward and forward.

[0258] During the above opening process (from the closed state to 90°), the door sidewall 32 starts to rotate counterclockwise from a state parallel to the reference plane M0. The angle between the door sidewall 32 and the plane where the pick-and-place opening is located gradually decreases, and the angle between it and the reference plane M0 gradually increases. That is, during the process of the door body 30 opening from the closed state to 90°, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door sidewall 32 extends towards the side away from the second body sidewall and the pick-and-place opening. At the same time, as the opening angle of the door body 30 increases, the angle between the door rear wall 33 and the plane where the pick-and-place opening is located gradually increases, and the angle between the door rear wall 33 and the reference plane M0 gradually decreases. That is, during the process of the door body 30 opening from the closed state to 90°, relative to the box body 10, along the direction from the door sidewall 32 to the opposite end of the door body 30 relative to the door sidewall 32, the door rear wall 33 extends towards the direction away from the first body sidewall and the pick-and-place opening.

[0259] (1.1) Combining the description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 opening from the closed state to G2 (G2 < 90°): During the process of the door body 30 opening from the closed state to G2, taking the box body 10 as a reference, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing towards the side of the door sidewall 32 , and a second-direction displacement parallel to the door sidewall 32 and pointing towards the side of the door front wall 31 ; that is, the first-direction displacement points to the outer rear side of the box body 10 (outward and backward), and the second-direction displacement points to the outer front side of the box body 10 (outward and forward).

[0260] As Figures 34 - Fig. 35 shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the closed state to G2, the first-direction displacement of the door body 30 is located in the fourth quadrant (A > 0, B < 0), and the second-direction displacement is located in the first quadrant (A > 0, B > 0). The first-direction displacement and the second-direction displacement are respectively decomposed into displacements on the A-axis and the B-axis; the component displacement of the first-direction displacement on the A-axis is > 0, and the component displacement on the B-axis is < 0; the component displacement of the second-direction displacement on the A-axis is > 0, and the component displacement on the B-axis is > 0. Among them, under the trajectory feature setting of the present invention, there is ; then there is, = + > 0, = + > 0. That is, when the door 30 opens from the closed state to G2, in the displacement coordinate system AOB, the door 30 has a first partial displacement >0 and second fractional displacement > 0. It can be concluded that, relative to the box body 10, the door body 30 has a tendency to move forward along the A axis and toward the B axis; that is, when the door body 30 opens from the closed state to G2 (G2 < 90°), the door body 30 has a tendency to move outward and forward relative to the box body 10.

[0261] (1.2) Combined with the above description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 opening from G2 to G5 (G2 < G5 < 90°), it can be seen that: during the process of the door body 30 opening from G2 to G5, with the box body 10 as a reference, the door body 30 has a first displacement direction parallel to the door rear wall 33 and pointing away from the door side wall 32 , parallel to the door side wall 32 and pointing to the second direction away from the door front wall 31 ; That is, the first direction displacement Pointing to the inner front side of the box 10 (inward and forward side), the second direction displacement It points to the inner rear side of the box body 10 (inward and rearward side).

[0262] like Figure 34 and Figure 36 As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from G2 to G5, the first direction displacement of the door body 30 is Located in the second quadrant (A<0, B>0), displacement in the second direction Located in the third quadrant (A<0, B<0). Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis and the B axis respectively; displacement in the first direction The displacement on the A axis is <0, the displacement on the B axis is >0;;Displacement in the second direction The displacement on the A axis is 0, the displacement on the B axis is <0. Among them, the trajectory feature setting of the present invention has ; then there is, = + <0, = + > 0. That is, during the process of the door body 30 opening from G2 to G5, in the displacement coordinate system AOB, the door body 30 has a first partial displacement <0 and the second displacement > 0. Thus, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move in the negative direction of the A axis and in the positive direction of the B axis; that is, during the process of the door body 30 being opened from G2 to G5, the door body 30 has a tendency to move inward and forward relative to the box body 10.

[0263] (1.3) 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 G5 (G5 < 90°) to G8 = 90° shows that: during the process of the door body 30 being opened from G5 (G5 < 90°) to G8 = 90°, taking the box body 10 as a reference, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 , and a second-direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31 ; that is, the first-direction displacement points to the outer rear side (outward and backward side) of the box body 10, and the second-direction displacement points to the outer front side (outward and forward side) of the box body 10.

[0264] As shown in 34 and Figure 37 shown, in the displacement coordinate system AOB, during the process of the door body 30 being opened from G5 to 90°, the first-direction displacement of the door body 30 is located in the fourth quadrant (A > 0, B < 0), and the second-direction displacement is located in the first quadrant (A > (A>0,B>0). Decompose the first-direction displacement and the second-direction displacement respectively on the A axis and the 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; the component displacement of the second-direction displacement on the A axis is > 0, and the component displacement on the B axis is [[ID=(A>0,B>0). Among them, under the trajectory feature setting of the present invention, there is ; then there is, = + > 0, = + < 0. That is, during the process of the door body 30 from G5 to 90°, in the displacement coordinate system AOB, the door body 30 has a first component displacement > 0 and a second component displacement <0. Thus, it can be concluded that: relative to the box body 10, the door body 30 has a tendency to move in the positive direction of the A axis and move in the negative direction of the B axis; that is, during the process of the door body 30 opening from G5 to 90°, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0265] As Figure 9 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.

[0266] Combined with the displacement direction of the door body 30 relative to the box body 10 during the opening process of the door body 30 from the first stage to the third stage, it is concluded that, in summary, when the door body 30 is opened to 90°, taking the box body 10 as the reference object, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 , and a second-direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31 ; that is, the first-direction displacement points to the rear side of the box body 10, and the second-direction displacement points to the outside of the box body 10.

[0267] As Figure 38 shown, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the first-direction displacement of the door body 30 is along the B axis and points to the negative direction of the B axis, and the second-direction displacement is along the A axis and points to the positive direction of the A axis. The first-direction displacement and the second-direction displacement are respectively decomposed into displacements on the A axis and the B axis; the component displacement of the first-direction displacement on the A axis is = 0, and the component displacement on the B axis is = < 0; the component displacement of the second-direction displacement on the A axis is = > 0, and the component 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 a first component displacement > 0 and a second component displacement < 0; from this, it can be concluded that: relative to the box body 10, the door body 30 has a tendency to move in the positive direction of the A axis and move in the negative direction of the B axis; that is, when the door body 30 is opened at 90°, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0268] (3) As Figures 9 - Fig. 12 shown, when the door body 30 rotates from 90° to G10 (G10 > 90°), during the counterclockwise rotation of the door body 30 relative to the box body 10, the door side wall 32 also rotates counterclockwise during the opening process at this stage. In the plane of the top wall of the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends outward and backward; along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the door rear wall 33 extends outward and forward.

[0269] During the above opening process, the door side wall 32 starts to rotate counterclockwise from a state perpendicular to the reference plane M0, and the angle between the door side wall 32 and the plane of the access opening 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 G10, 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 closer to the access opening. At the same time, the angle between the door rear wall 33 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 rotating from 90° to G10, 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 toward the direction away from the second body side wall and the access opening.

[0270] During the process of the door body 30 rotating from 90° to G10, taking the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 , and a second direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31 ; that is, the first direction displacement points to the inner rear side of the box body 10 (inward and backward), and the second direction displacement points to the outer rear side of the box body 10 (outward and backward).

[0271] As Figure 34 and Figure 39 shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from 90° to G10, the first direction displacement of the door body 30 is located in the third quadrant (A < 0, B < 0), and the second direction displacement Located in the fourth quadrant (A > 0, B < 0). For the displacement in the first direction and the displacement in the second direction are respectively decomposed into displacements on the A-axis and the B-axis; the displacement in the first direction The component displacement on the A-axis is < 0, and the component displacement on the B-axis is < 0;; The displacement in the second direction The component displacement on the A-axis is > 0, and the component displacement on the B-axis is < 0. Among them, under the trajectory characteristics set by the present invention, there is ; then, = + > 0, = + < 0. That is, when the door body 30 rotates from 90° to G10, in the displacement coordinate system AOB, the door body 30 has a first component displacement > 0 and a second component displacement < 0. From this, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move in the positive direction of the A-axis and move in the negative direction of the B-axis; that is, when the door body 30 rotates from G5 to 90° to open, the door body 30 has a tendency to move outwards and backwards relative to the box body 10.

[0272] In summary, during the whole process of the door body 30 opening from the closed state to G10 (G10 > 90°), relative to the box body 10, the movement of the door body 30 is divided into three stages, and the door body 30 first moves outwards, then inwards, and then has a tendency to move outwards.

[0273] 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 = G10 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 characteristics of the present invention can enable the door body 30 to have a movement trend of outwards → inwards → outwards during the opening process.

[0274] In this embodiment, the door body 30 has a tendency to move outwards during the first stage of opening. Specifically, the first hinge shaft 41 moves a certain distance away from the door sidewall 32 and the front door wall 31 relative to the guiding groove, so that the door body 30 moves outwards a certain distance. During the process of the door body 30 rotating from the closed state to G2, while the first hinge shaft 41 moves away from the door sidewall 32 and the front door wall 31 relative to the guiding groove, the second hinge shaft 42 moves towards the direction away from the door sidewall 32 and close to the front door wall 31 relative to the guiding groove, and the third hinge shaft 43 moves towards the direction away from the door sidewall 32 and the front door wall 31 relative to the guiding groove. In addition, in this embodiment, during the process of the door body 30 opening from the closed state to G2, the door body 30 moves inwards and forwards a certain distance at the same time, so that the door body 30 quickly moves away from the cabinet body 10, effectively avoiding squeezing the door seal 5.

[0275] In this embodiment, the door body 30 has a tendency to move inwards during the second stage of opening. Specifically, during the process of the door body 30 rotating from G2 to G5, the first hinge shaft 41 moves a certain distance towards the door sidewall 32 and the front door wall 31 relative to the guiding groove, so that the door body 30 moves inwards a certain distance. In some embodiments of the present application, while the first hinge shaft 41 moves towards the door sidewall 32 and the front door wall 31 relative to the guiding groove, the second hinge shaft 42 moves towards the direction away from the door sidewall 32 and close to the front door wall 31 relative to the guiding groove, and the third hinge shaft 43 moves towards the direction towards the door sidewall 32 and away from the front door wall 31 relative to the guiding groove. The above settings enable the door body 30 to move inwards during the process of rotating from G2 to G5. The above settings are applicable to the scenario of the built-in installation of the refrigerator in the cabinet. When the door body 30 opens and moves inwards, 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 opens, 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.

[0276] In this embodiment, the second stage is set on the premise of the outward movement of the door body 30 in the first stage, which can take into account the different requirements of the two stages at the same time, increasing the flexible applicability of the refrigerator.

[0277] 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 is not restricted by the outward movement setting of the door body 30 when the door body 30 in the first stage is opened from the closed state to G2; the setting of the door body 30 from the closed state to G2 in cooperation with the above-mentioned second-stage setting can be different from the setting in the first stage. For example, it can be set that during the process of the door body 30 being opened from the closed state to G2, the door body 30 rotates around the first hinge axis 41. Additionally, it can be set that during the process of the door body 30 being opened from the closed state to G2, the door body 30 also has a tendency to move inward. Similarly, the setting in the first stage is not restricted by the form of the second-stage setting either.

[0278] In this embodiment, the door body 30 has a tendency to move outward in the third stage of opening; that is, the door body 30 has a tendency to move outward during the process of continuing to open from G5. Specifically, during the process of the door body 30 being opened from G5 to G10, 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 the front door wall 31, so that the door body 30 moves outward by 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 and the front door wall 31, the second hinge axis 42 moves relative to the guiding groove first in a direction away from the door side wall 32 and towards the front door wall 31, and then 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 first in a direction towards the door side wall 32 and away from the front door wall 31, and then in a direction towards the door side wall 32 and the front door wall 31. In the above settings, G5 < 90°. That is, during the process of the door body 30 being opened to 90°, it has a tendency to move outward; it can reduce the occlusion of the door body 30 on the access opening, facilitating the taking and placing of items, and can also increase the lateral width of the drawer and the space utilization rate of the drawer on the premise of ensuring that the drawer placed in the storage room can be pulled out. Additionally, when used in conjunction with the second stage, in the scenario of the built-in installation of the refrigerator in the cabinet, the later outward movement of the door body 30 can compensate for the displacement of the door body 30 moving inward in the early stage to avoid the cabinet, so as to make full use of the lateral space of the cabinet and reduce the occlusion of the access opening caused by the inward movement of the door body 30 in the early stage.

[0279] 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 is not restricted by the outward movement setting of the door body 30 when the door body 30 in the first stage is opened from the closed state to G2, nor is it restricted by the inward movement setting of the door body 30 when the door body 30 in the second stage is rotated and opened from G2 to G5. The setting of the door body 30 from the closed state to G2 in cooperation with the above-mentioned third-stage setting can be different from the setting in the first stage; similarly, the setting of the door body 30 from G2 to G5 in cooperation with the above-mentioned third-stage setting can be different from the setting in the second stage.

[0280] Combined withFigures 40 - Fig. 49 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 opens, the first side edge W is located at W` relative to the box body 10; the second side edge N is located at N` relative to the box body 10; the side sealing edge H is located at H` relative to the box body 10. Correspondingly, when the door body 30 is opened to the subsequent state according to the trajectory setting in this embodiment (the door body 30 is represented by a solid line), compared with its previous state, the rotation axis of the door body 30 changes 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 40 shown in, the position where the door body 30 represented by the dotted 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 41 shown in, the position where the door body 30 represented by the dotted line is located is the position reached when the door body 30 is rotated and opened to 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 it is opened to G1 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 42 - Fig. 49 Figure is a schematic diagram of the position comparison of the above two different opening methods at different opening angles.

[0281] By comparing the setting of the present invention with the way that the door body 30 simply rotates around the first central axis I in its previous state, it can be known that:

[0282] During the process of the door body 30 being opened from the closed state to G2, in the present application, the position W where the first side edge is located is always on the side of W` away from the second body side wall and the access opening; the position N where the second side edge is located is always on the side of N` away from the second body side wall and the access opening; the position H where the side sealing edge is located is always on the side of H` away from the second body side wall and the access opening. That is, during the process of the door body 30 being opened from the closed state to G2, the door body 30 has a tendency to move outward and forward.

[0283] During the process of the door body 30 being opened from G2 to G5, in the present application, the position W where the first side edge is located is always on the side of W` close to the second body side wall and away from the access opening; the position N where the second side edge is located is always on the side of N` close to the second body side wall and away from the access opening; the position H where the side sealing edge is located is always on the side of H` close to the second body side wall and away from the access opening. That is, during the process of the door body 30 being opened from G2 to G5, the door body 30 has a tendency to move inward and forward.

[0284] When the door body 30 is opened from G5 to G10, in the present application, the position W of the first side edge is always located on the side of W` away from the second body side wall and close to the access opening; the position N of the second side edge is always located on the side of N` away from the second body side wall and close to the access opening; the position H of the side sealing edge is always located on the side of H` away from the second body side wall and close to the access opening. That is, when the door body 30 is opened from G5 to G10, the door body 30 has a tendency to move outward and backward.

[0285] The movement trends in the above stages are consistent with the movement trends in the analysis of the above-mentioned stages.

[0286] 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 it is simply rotated around the first central axis I from the previous state of the present invention to the opening angle of the door body 30 of the present invention is representative. It can represent the movement trend of the door body 30 relative to the previous state during the opening process of the door body 30 of the present invention. Here, only some selected angles are used for comparison and description to present the movement trend when the door body 30 is opened.

[0287] 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 move the door body 30 inward or outward in different stages; the length of the guiding track 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.

[0288] In some embodiments of the present application, in combination with Figures 7 - Fig. 18 as shown, a first reference plane M1 and a second reference plane M2 are also defined. Among them, as shown in Figure 18 as shown, the first reference plane M1 is a plane parallel to the reference plane M0 and perpendicular to the plane where the access opening is located. The first reference plane M1 is the plane where the second body side wall is located; that is, the first reference plane M1 is parallel to the first body side wall (reference plane M0); the second reference plane M2 is the plane where the access opening of the storage chamber is located. The first reference plane M1 and the second reference plane M2 do not move along with the opening process of the door body 30 relative to the box body 10, and are reference planes that remain stationary relative to the box body 10.

[0289] During the opening process of the door body 30, the first side edge W moves as the door body 30 opens, and its movement track is recorded as the first side edge track 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.

[0290] 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 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.

[0291] As a settable method, in the projection on the top wall of the box body 10, during the process of the door body 30 opening from the closed state to Gmax, the second side edge N moves along an arc. That is, in the projection on the top wall of the box body 10, during the process of the door body 30 opening from the closed state to Gmax, the trajectory formed by the movement of the second side edge N is circular arc-shaped. The hinge assembly with the above trajectory characteristics can effectively detect the assembly accuracy and machining accuracy after the door body 30 and the box body 10 are assembled, so that timely adjustment can be made to achieve the high-precision fit between the second hinge part on the door body 30 and the first hinge part on the box body 10, and meet the complex movement requirements of precisely controlling the door body 30 to complete rotation and move horizontally (inward or outward).

[0292] During the opening process of the door body 30, the side sealing edge H moves along with the opening of the door body 30, and its movement trajectory is recorded as the side sealing edge trajectory line. In the projection on the plane where the top wall of the box body 10 is located, during the opening process of the door body 30, the side sealing edge H first moves towards the direction close to the first reference plane M1 and the second reference plane M2, then moves towards the direction close to the first reference plane M1 and away from the second reference plane M2, and then moves towards the direction away from the first reference plane M1 and away from the second reference plane M2. The above setting that the side sealing edge H finally moves away from the first reference plane M1 can reduce the occlusion of the door body 30 to the access opening.

[0293] As a settable method, in the projection on the top wall of the box body 10, during the process of the door body 30 opening from the closed state to Gmax, the side sealing edge H moves along an arc. That is, in the projection on the top wall of the box body 10, during the process of the door body 30 opening from the closed state to Gmax, the trajectory formed by the movement of the side sealing edge H is circular arc-shaped. The hinge assembly with the above trajectory characteristics can effectively detect the assembly accuracy and machining accuracy after the door body 30 and the box body 10 are assembled, so that timely adjustment can be made to achieve the high-precision fit between the second hinge part on the door body 30 and the first hinge part on the box body 10, and meet the complex movement requirements of precisely controlling the door body 30 to complete rotation and move horizontally (inward or outward).

[0294] It should be noted that the trajectories formed by the movement of the second side edge N and the side sealing edge H above are "circular arcs", including the standard circular arcs in the standard mathematical definition (the part between any two points on a circle), and also including curves that have small deviations from the standard circular arcs in the standard mathematical definition due to reasons such as processing errors, micro-deformation of components, micro-wear, reserved gaps, etc., or their own manifestations, but still have the characteristics of circular arcs (such as fluctuating slightly around the circular arc).

[0295] In this embodiment, in the projection on the plane of the top wall of the box body 10, the straight line where the side sealing edge H and the second side edge N are located is denoted as HN. During the opening process of the door body 30, when the door body 30 is opened from the closed state to G10, the second side edge N is located on the side of the side sealing edge H close to the first body side wall. As a settable method, when the door body 30 is opened to G10, HN is perpendicular to the second reference plane M2; on the one hand, it ensures that the door body 30 has a sufficiently large maximum opening angle, and on the other hand, it avoids the second side edge N moving to the side of the side sealing edge H away from the first body side wall as the door body 30 is opened, thus blocking the access opening.

[0296] In some embodiments of the present application, in the plane of the top wall of the box body 10, the center of the circle where the circular arc-shaped second side edge trajectory line is located is denoted as the second side edge center ON, and the center of the circle where the circular arc-shaped side sealing edge trajectory line is located is denoted as the side sealing edge center OH; among them, the radius of the circle where the second side edge trajectory line is located is smaller than the radius of the circle where the side sealing edge trajectory line is located. The second side edge center ON is located on the side of the side sealing edge center OH away from the access opening and close to the first body side wall, and the second side edge center ON is located on the side of the first central axis I away from the first body side wall and the access opening; the first central axis I is located on the side of the side sealing edge center OH away from the access opening and close to the first body side wall. That is, the first central axis I, the second side edge center ON, and the side sealing edge center OH are successively away from the first body side wall; the side sealing edge center OH, the first central axis I, and the second side edge center ON are successively away from the plane where the access opening is located.

[0297] Among them, the second side edge center ON, the side sealing edge center OH, and the side sealing edge center OH are adjacent to each other. Specifically, in the direction perpendicular to the plane of the first body side wall, the distance between the second side edge center ON and the side sealing edge center OH belongs to any value between 0.2 mm and 0.25 mm; the distance between the first central axis I and the side sealing edge center OH belongs to any value between 0.3 mm and 0.4 mm. In the direction perpendicular to the plane where the access opening is located, the distance between the second side edge center ON and the side sealing edge center OH belongs to any value between 3 mm and 3.5 mm; the distance between the first central axis I and the side sealing edge center OH belongs to any value between 2 mm and 2.5 mm.

[0298] Embodiment Two

[0299] In this second embodiment, asFigures 50 - Fig. 53 As shown, the refrigerator includes two door bodies 30 arranged oppositely, and the two oppositely arranged door bodies 30 cooperate together to open or close the access opening. On one side of any one of the two door bodies 30 away from its door side wall 32, there is a side sealing strip 3; 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 box body to prevent cold air from overflowing.

[0300] Combined with the setting of the hinge assembly in Embodiment 2, the hinge assembly in this embodiment has the motion characteristics of the first stage (refer to Embodiment 1, when the door body 30 is opened from the closed state to G2, the door body 30 moves outwards, which will not be elaborated here). That is, in this Embodiment 2, when the door body 30 is opened from the closed state to G2, the door body 30 first moves outwards, which can avoid one of the two oppositely arranged door bodies 30 driving the other door body 30 to be opened when one of them is opened, effectively reducing the loss of cold quantity; at the same time, it can effectively reduce the occlusion of the access opening by the door body 30.

[0301] Embodiment 3

[0302] Combined with Figures 50 - Fig. 53 As shown, such as Figure 54 , the refrigerator in this Embodiment 3 is also provided with two oppositely arranged door bodies 30, and the two oppositely arranged door bodies 30 cooperate together to open or close the access opening. On one side of any one of the two door bodies 30 away from its door side wall 32, there is a side sealing strip 3; 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 box body to prevent cold air from overflowing. Its setting method is the same as that of Embodiment 2.

[0303] Different from Embodiment 2, the refrigerator in this Embodiment 3 can be applied to the situation of being embedded in a cabinet.

[0304] Specifically, different from Embodiment 2, combined with the setting of the hinge assembly in Embodiment 1, the hinge assembly in this Embodiment 3 has the overall motion characteristics of the first stage and the second stage (refer to Embodiment 1, when the door body 30 is opened from the closed state to G2, the door body 30 moves outwards; when the door body 30 is rotated and opened from G2 to G5, the door body 30 moves inwards; which will not be elaborated here). That is, in this Embodiment 3, the hinge assembly makes the door body 30 move in the way of moving outwards in the first stage and then moving inwards in the second stage during the opening process.

[0305] Specifically, in the third embodiment, when the door body 30 is opened from the closed state to G2, the door body 30 first moves outwards. When the door body 30 continues to open from G2, it has a tendency to move inwards. With the above settings, on the one hand, it can move outwards at the initial stage of opening the door body 30 to avoid driving another door body 30 to open, reducing cold loss; on the other hand, it can make the opened door body 30 move inwards after the two door bodies 30 are separated, which can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, 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 body 30 is opened, further reducing the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of the cabinet 100 space. Furthermore, setting the door body 30 to move inwards 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.

[0306] Embodiment Four

[0307] As Figures 55 - Fig. 63 shown, in the fourth embodiment of the present invention, the refrigerator includes two relatively arranged door bodies 30, and the two relatively arranged door bodies 30 cooperate together to open or close the access opening. Among them, when the two door bodies 30 are closed, a flipping beam 9 is provided on the inner lining surface of one door body 30 close to the other door body 30. A guiding rail 91 is provided on the top wall of the storage compartment of the refrigerator, and the flipping beam 9 can be slidably engaged with the guiding rail 91 to achieve switching of different angles of the flipping beam 9 relative to the door body 30. When the two door bodies 30 are closed, the flipping beam 9 closes the gap between the two door bodies 30 and the box body 10, effectively preventing cold air from overflowing.

[0308] Specifically, the flipping beam 9 includes a door turning beam rear cover, and the door turning beam rear cover is connected to the door body 30 through a first door hinge and a second door hinge, and the door turning beam rear cover is elastically connected to the two door hinges respectively by torsion springs; among them, the first door hinge is located above the second door hinge. Among them, a guiding block 90 is fixedly provided on the top of the door turning beam rear cover, and the guiding block 90, as the rotating component of the flipping beam 9, cooperates with the guiding rail 91 to achieve switching of different angles of the flipping beam 9 relative to the door body 30.

[0309] There are through holes for passing the torsion spring force arms on both the door hinge and the door turning beam rear cover, and the upper and lower door hinges are connected to the door turning beam rear cover by using torsion springs. The specific connection is that the first door hinge is connected to the door turning beam rear cover through a first torsion spring, and the second door hinge is connected to the door turning beam rear cover through a second torsion spring. When the flipping beam 9 rotates around the door hinge, the first torsion spring and the second torsion spring store or release elastic energy, so that the door turning beam rear cover rotates stably and returns to its original position in time.

[0310] When the door body 30 is in the open state, due to the action of the torsion spring torque (the first torsion spring and the second torsion spring), the flipping beam 9 closely adheres to one side of the door hinge fixed to the inner lining of the door body 30.

[0311] As Figures 61 - Fig. 63 shown, when the door body 30 is closed from the open state, an external force is first applied to the door body 30. Under the action of the external force, the door body 30 gradually closes. When the door body 30 is closed to an angle GS, the guiding block 90 at the topmost end of the flipping beam 9 comes into contact with the guiding rail 91.

[0312] When the door body 30 is closed to the angle GS and the external force continues to be applied, the door body 30 continues to move in the closing direction. The guiding block 90 at the topmost end of the flipping beam 9 enters the guiding rail 91, and the guiding block 90 and the guiding rail 91 interact with each other. During this closing process, due to the pressure of the guiding rail 91 on the guiding block 90, the flipping beam 9 starts to flip, and the torsion spring is compressed radially. When the flipping beam 9 flips past G`F and reaches the critical value of the torsion spring. After that, the torsion spring starts to stretch to release the torsion spring torque so that the flipping beam 9 quickly flips in place; until the door body 30 is closed, at this time the torsion spring torque is released and returns to the relaxed state again. After the door body 30 is closed, the flipping beam 9 contacts the seal provided on the door body 30, effectively preventing cold air from leaking out between the seams of the two pairs of opening doors. If the external force is removed before the flipping beam 9 flips to G`F, since the torsion of the torsion spring does not reach the critical value of the torsion spring, the guiding block 90 at the top of the flipping beam cannot effectively complete the flipping after entering the guiding rail 91 on the box body and is stuck, and the flipping beam cannot automatically complete the flipping, resulting in the door body 30 with the flipping beam not being able to close in place, causing the failure of low-temperature storage in the refrigerator.

[0313] In the fourth embodiment, the first hinge member is at the first mating portion at one end away from the first side wall of the first body. The end of the door body 30 close to the first hinge member is provided with a second mating portion, and the second mating portion is used to cooperate with the first mating portion to realize the locking and unlocking of the door body 30 and the box body 10. As a settable way, the second mating portion is located on the side of the second hinge member away from the door side wall 32.

[0314] When the door body 30 is closed from the open state, an external force is first applied to the door body 30. Under the action of the external force, the door body 30 gradually closes; as the door body 30 rotates and closes, the free end of the second mating portion gradually approaches the first mating portion.

[0315] When the door body 30 is closed to the angle GB0, the second mating portion abuts against the first mating portion; then under the action of the external force, the door body 30 continues to close, the first mating portion and the second mating portion interact with each other, the second mating portion undergoes elastic deformation, and under the combined action of the external force and the acting force of the first mating portion, the second mating portion and the first mating portion gradually approach each other, and the elastic deformation amount of the second mating portion gradually increases.

[0316] 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.

[0317] When the door body 30 continues to move in the closing direction after being closed to GB1, the elastic energy stored in the second mating part during the previous deformation is released. Under the combined action of its force with the first mating part, the second mating part recovers to the relaxed state and drives the door body 30 to close quickly and automatically in place; until the door body 30 is closed, the second mating part is locked with the first mating part, 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 closes automatically.

[0318] It should be noted that during the closing process of the above door body 30, after 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 flipping. And when the external force is removed after the door body 30 is closed to GB1, the door body 30 has an inertial force, and the inertial force also has the characteristic of keeping the door body 30 in the original closing motion trend.

[0319] 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.

[0320] 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.

[0321] 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 closes quickly and automatically.

[0322] That is, in the fourth 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 automatic closing.

[0323] Combined with the setting of the hinge assembly in the second embodiment, the hinge assembly in this embodiment has the motion characteristics of the first stage (refer to the stage where the door body is opened from the closed state to Q2 in the second embodiment, which will not be elaborated here). That is, in the fourth embodiment, during the process of the door body 30 being opened from the closed state to G2, the door body 30 moves outwards. Correspondingly, during the process of the door body 30 from G2 to the closed state, the door body 30 has a tendency to move inwards.

[0324] As a configurable manner, GB1 > G2. That is, the door body 30 has a tendency to move inward during the automatic closing process (during the process of continuing to close by GB1); the door body 30 moves inward, applying an inward acting force on the flipping beam 9, and this acting force causes the flipping beam to flip. Since in this embodiment, during the process of the door body 30 continuing to close by GB1, it has the characteristic of automatic closing, and the door body 30 maintains the tendency of moving inward, the inward acting force applied by the inward movement of the door body 30 on the flipping beam 9 always exists, which can ensure that the flipping beam 9 flips in place and the door body 30 closes in place.

[0325] In some embodiments of the present application, referring to Figures 60 to Fig. 63 , the door body 30 includes a mounting block, the mounting block is mounted at a position on the door body 30 opposite to the hinge plate 40, and the guiding portion 60 and the second mating portion are formed on the mounting block. The first mating portion is formed on the side of the extension portion 402 of the hinge plate 40 away from the door side wall 32.

[0326] Specifically referring to Figures 60 - Fig. 63 , the door body 30 has a door end cap 38. In this embodiment, the mounting block provided at the lower end of the door body 30 is taken as an example for illustration. Combining Figures 60 - Fig. 63 as shown, a guiding groove is formed on the mounting block. Among them, the guiding groove includes a groove bottom and a circumferential groove wall surrounding the edge of the groove bottom; among them, a guiding groove is formed on the groove bottom of the guiding groove, and the circumferential groove wall of the guiding groove defines a guiding track line K. The door body 30 includes a door end cap 38, and a receiving groove 37 is formed on the door end cap 38, and the receiving groove 37 is used to fixedly mount the mounting block. As an implementable manner, the mounting block is placed in the receiving groove 37, and then the mounting block is tightly 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.

[0327] 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. Optionally, a plurality of first fixing members are distributed around the guiding groove.

[0328] As a configurable manner, a first receiving portion recessed into the inner cavity of the door body 30 is formed on the bottom wall of the receiving groove 37 near the door side wall 32, at least a part of the guiding groove is received in the first receiving portion, and the groove bottom of the guiding groove is matched with the inner wall of the first receiving portion; the plate body 81 is matched with the bottom wall of the receiving groove 37 to effectively define the position of the guiding groove.

[0329] As a configurable manner, a second receiving portion recessed into the inner cavity of the door body 30 is formed on the cavity bottom wall of the first receiving portion. The guiding groove is installed in the second receiving portion and is matched with the inner wall of the second receiving portion to limit the guiding groove.

[0330] 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 a 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 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 a side closer to the door rear wall 33.

[0331] The first mating portion provided on a 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 a side of the stop portion 403 close to the cabinet 10. When the door body 30 is in a closed state, the free end of the locking hook 82 is received in the hooking gap 404, the stop portion 403 is located inside the locking hook 82, and the locking hook 82 on the door body 30 hooks the stop portion 403 on the hinge plate 40, thereby locking the door body 30 and preventing the door body 30 from not closing tightly and affecting the refrigeration and freezing effects of the refrigerator; when the door body 30 is opened, the locking hook 82 deforms under force and overcomes the blocking of the stop portion 403, thereby disengaging from the stop portion 403.

[0332] The locking hook 82 may include a root connection portion 83 and a hooking portion 84. The root connection portion 83 is connected to the plate body 81, and the hooking portion 84 is connected to the root connection portion 83 and bends toward the door rear wall 33 and the door side wall 32. A screw passes through the root connection portion 83 and is connected to the door body 30 to strengthen the connection strength between the root connection portion 83 and the door body 30, so that only the hooking portion 84 deforms when the locking hook 82 disengages from the stop portion 403.

[0333] Optionally, the free ends of the hooking portion 84 and the stop portion 403 are both arc-shaped, which is beneficial for the hooking portion 84 to smoothly hook the stop portion 403 or disengage from the stop portion 403 along the arc.

[0334] As ​ 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 ​ shown, when the door body 30 is closed to GB0, the hooking portion 84 abuts against the stop portion 403; then under the action of an external force, the door body 30 continues to close, the stop portion 403 and the hooking portion 84 interact with each other, the hooking portion 84 undergoes elastic deformation, and under the combined action of the external force and the acting force of the stop portion 403, the moving hooking portion 84 gradually enters the hooking gap 404 (that is, the stop portion 403 enters the hooking portion 84). As ​As shown, when the door body 30 is closed to GB1, the elastic deformation amount of the hooking portion 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 portion 84 is gradually released. Under the combined action of the acting force with the stop portion 403, the hooking portion 84 returns to the relaxed state, and drives the hooking portion 84 to further enter the hooking gap 404, so that the door body 30 quickly closes automatically 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.

[0335] Embodiment 5

[0336] The refrigerator in this Embodiment 5 also includes two relatively arranged door bodies 30, and the two relatively arranged door bodies 30 cooperate together to open or close the access opening. Among them, when the two door bodies 30 are closed, a turning beam 9 is provided on the inner lining surface of one door body 30 close to the other door body 30. A guide rail 91 is provided on the top wall of the storage chamber 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 leaking out. Its setting method is the same as that in Embodiment 4.

[0337] In addition, similar to Embodiment 4, a first matching portion and a second matching portion that cooperate with each other to lock the door body 30 and the box body 10 when the door body 30 is closed are also provided in this Embodiment 5. (The setting method is the same as that in Embodiment 4)

[0338] And it satisfies GB1 > G2. That is, the door body 30 has a tendency to move inward during the process of automatic closing (during the process of continuing to close from GB1), which can ensure that the turning beam 9 is turned in place and the door body 30 is closed in place.

[0339] Different from Embodiment 4, as ​ shown, the refrigerator in this Embodiment 5 is applicable to the situation of being embedded in a cabinet.

[0340] Specifically, different from Embodiment 4, in combination with the setting of the hinge assembly in Embodiment 2, the hinge assembly in this Embodiment 5 has the overall motion characteristics of the first stage and the second stage (refer to Embodiment 1, during the process of the door body 30 being opened from the closed state to G2, the door body 30 moves outward; during the process of the door body 30 being rotated and opened from G2 to G5, the door body 30 moves inward; this will not be elaborated here). That is, in this Embodiment 5, the hinge assembly makes the door body 30 move in the first stage in an outward moving manner and then in the second stage in an inward moving manner during the opening process.

[0341] Specifically, in the fourth embodiment, when the door body 30 is opened from the closed state to G2, the door body 30 first moves outwards. When the door body 30 continues to open from G2, it has a tendency to move inwards. With the above settings, on the one hand, when the door body 30 continues to close along the closing direction from GB1, it has a tendency to move inwards, which can ensure that the flipping beam 9 flips in place and the door body 30 closes in place. On the other hand, during the opening process of the door body 30, after the door body 30 moves outwards a certain distance first, the door body 30 moves inwards, which can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, limit the distance that the first side edge W exceeds the reference plane M0 not to exceed the distance between the cabinet and the side wall of the refrigerator body, effectively avoid interference between the door body 30 and the cabinet 100 when the door body 30 is opened, further reduce the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improve the utilization rate of the cabinet 100 space. Moreover, setting the door body 30 to move inwards 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.

[0342] Embodiment Six

[0343] The difference between this Embodiment Six and Embodiment One is that in this embodiment, the stage in which the door body 30 moves outwards when it is opened from the closed state to G2 in the first stage is not provided. Specifically, the first hinge member in this embodiment is the same as the setting in Embodiment One, and will not be elaborated here. As ​ shown, in this Embodiment Six, the positions of the guiding portion 60 and the guiding part 50 when the door body 30 is closed can be the same as the corresponding positions of the guiding portion or the guiding portion 60 when the door body 30 in Embodiment One is opened to any angle between G2 and G5. For the convenience of description, take the position of the guiding portion 60 when the door body 30 is closed to be the same as the position of the guiding portion 60 when the door body 30 in Embodiment One is opened to G2, and the position of the guiding part 50 when the door body 30 is closed to be the same as the position of the guiding part 50 when the door body 30 in Embodiment One is opened to G2 as an example for illustration, but it should be noted that the setting of this application is not limited by this G2.

[0344] Specifically, in this embodiment, the guiding portion 60 on the door body 30 rotates clockwise by G2 relative to the guiding portion 60 in Embodiment One, and the guiding part 50 on the door body 30 rotates clockwise by G2 relative to the guiding part 50 in Embodiment One.

[0345] Compared with the angle θ between the guiding part 50 and the front door wall 31 in the first embodiment, in the sixth embodiment, the angle between the guiding part 50 and the front door wall 31 is θ - G2. It should be noted that in this embodiment, the angle between the guiding part 50 and the front door wall 31 is not limited to being set as θ - G2; as a setting method, along the direction from the rear door wall 33 to the front door wall 31, the distance between the guiding track line S and the door side wall 32 decreases linearly.

[0346] For unified description, the guiding positions on the guiding track line S are the same as those in the first embodiment. The fifth guiding position I5 is the end point position of the guiding track line S close to the door side wall 32, and the tenth guiding position I10 is the end point position of the guiding track line S far from the door side wall 32; the tenth guiding position I10 is located on the side of the fifth guiding position I5 far from the door side wall 32 and the front door wall 31, and the guiding track line S is a straight line. That is, the guiding part 50 is in an inclined straight shape, and the guiding groove is an inclined straight groove. The fifth guiding position I5, the sixth guiding position I6, the seventh guiding position I7, the eighth guiding position I8, the ninth guiding position I9, and the tenth guiding position I10 are successively far from the door side wall 32 and the front door wall 31, and the second guiding position I2, the third guiding position I3, the fourth guiding position I4, and the fifth guiding position I5 are successively close to the door side wall 32 and the front door wall 31.

[0347] In the sixth embodiment, optionally, the guiding track line K includes a first guiding segment K1, a second guiding segment K2, a third guiding segment K3, a fourth guiding segment K4, a fifth guiding segment K5, a sixth guiding segment K6, a seventh guiding segment K7, and an eighth guiding segment K8 that are connected end to end in sequence; that is, the guiding track line K is in a closed ring 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 seventh guiding segment K7 and the first guiding segment K1 is denoted as the first connection position a, the connection point of the first guiding segment K1 and the second guiding segment K2 is denoted as the second connection position b, the connection point of the second guiding segment K2 and the third guiding segment K3 is denoted as the third connection position c, the connection point of the third guiding segment K3 and the fourth guiding segment K4 is denoted as the fourth connection position d, the connection point of the fourth guiding segment K4 and the fifth guiding segment K5 is denoted as the fifth connection position e, the connection point of the fifth guiding segment K5 and the sixth guiding segment K6 is denoted as the sixth connection position f, the connection point of the sixth guiding segment K6 and the seventh guiding segment K7 is denoted as the seventh connection position g, and the connection point of the seventh guiding segment K7 and the eighth guiding segment K8 is denoted as the eighth connection position h.

[0348] In the sixth embodiment, when the door body 30 is closed, the first hinge shaft 41 is located at the second guiding position I2 on the guiding track line S, the second hinge shaft 42 is engaged with the eighth guiding segment K8; the third hinge shaft 43 is engaged with the fifth guiding segment K5.

[0349] In some embodiments of the present application, it can be set that when the door body 30 is closed, the first hinge shaft 41 is located at the third guiding position I3 on the guiding track line S, the second hinge shaft 42 cooperates with the first connecting position a; the third hinge shaft 43 cooperates with the sixth guiding section K6. At this time, the guiding part 50 and the guiding section 60 rotate by an angle G3 relative to the corresponding guiding part 50 and guiding section 60 in the first embodiment.

[0350] In the sixth embodiment, the first connecting position a is located on the side of the fifth guiding position I5 close to the door side wall 32. As a settable manner, the straight line where the first connecting position a and the fifth guiding position I5 are located is parallel to the front wall 31 of the door. The second connecting position b is located on the side of the first connecting position close to the door side wall 32 and the front wall 31 of the door. The second connecting position b is the point where the guiding track line K is closest to the door side wall 32.

[0351] The third connecting position c is located on the side of the second connecting position b close to the front wall 31 of the door and away from the door side wall 32;

[0352] The fourth connecting position d is located on the side of the third connecting position c away from the front wall 31 of the door and the door side wall 32, and the fourth connecting position d is on the side of the second connecting position b close to the front wall 31 of the door.

[0353] The fifth connecting position e is located on the side of the fourth connecting position d close to the front wall 31 of the door and away from the door side wall 32; in this embodiment, the fifth connecting position e is the point where the guiding track line K is closest to the front wall 31 of the door.

[0354] The sixth connecting position f is located on the side of the fifth connecting position e away from the front wall 31 of the door and the door side wall 32. As a settable manner, 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.

[0355] The seventh connecting position g is located on the side of the sixth connecting position f close to the door side wall 32 and away from the front wall 31 of the door. As a settable manner, the seventh connecting position g is located on the side of the third connecting position c away from the door side wall 32 and on the side of the fourth connecting position d close to the door side wall 32. The seventh connecting position g is the point where the guiding track line K is closest to the front wall 31 of the door.

[0356] The eighth connecting position h is located on the side of the seventh connecting position g close to the door side wall 32 and the front wall 31 of the door. As a settable manner, the eighth connecting position h is located on the side of the first connecting position a close to the door side wall 32 and away from the front wall 31 of the door; and is located on the side of the second connecting position b away from the door side wall 32 and the front wall 31 of the door.

[0357] That is, in the projection on the plane where the front door wall 31 is located, the second connection position b, the eighth connection position h, the first connection position a, the third connection position c, the seventh connection position g, the fourth connection position d, the fifth connection position e, and the sixth connection position f are successively away from the door side wall 32. In this embodiment, in the projection on the plane where the front door wall 31 is located, the second connection position b, the eighth connection position h, and the first connection position a are adjacent to each other. The third connection position c, the seventh connection position g, and the fourth connection position d are adjacent to each other.

[0358] As a settable manner, in the projection on the plane where the front door wall 31 is located, the distance between the second connection position b and the first connection position a is less than 2 mm; the distance between the second connection position b and the eighth connection position h is less than 1 mm. The distance between the third connection position c and the fourth connection position d is less than 6 mm; the distance between the third connection position c and the seventh connection position g is less than 1 mm.

[0359] In the projection on the plane where the door side wall 32 is located, the fifth connection position e, the third connection position c, the fourth connection position d, the second connection position b, the first connection position a, the sixth connection position f, the eighth connection position h, and the seventh connection position g are successively away from the front door wall 31. Among them, the first connection position a and the sixth connection position f are adjacent to each other; as a settable manner, in the projection on the plane where the door side wall 32 is located, the distance between the first connection position a and the sixth connection position f is less than 0.5 mm.

[0360] As a settable manner, a concave point f1 is formed at the position where the sixth guiding section K6 is close to the sixth connection position f. Specifically, the sixth guiding section K6 protrudes towards its guiding centroid O at the concave point f1. As a settable manner, during the opening process of the door body 30, when the second hinge shaft 42 cooperates with the second connection position b, the third hinge shaft 43 cooperates with the concave point f1.

[0361] During the opening process of the door body 30, the first hinge shaft 41 moves relative to the guiding groove, and the second hinge shaft 42 and the third hinge shaft 43 move relative to the guiding groove. According to the principle described in the first embodiment, in this sixth embodiment, when the door body 30 is in the closed state, the first central axis I is located at the fifth guiding position I5, the second central axis E is located at E5 relative to the door body 30, and the second central axis F is located at F5 relative to the door body 30.

[0362] Such as ​As shown in the figure, in the sixth embodiment, the opening angles of the door body 30 are denoted as Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8. Considering the relevance between the sixth embodiment and the first embodiment, the movement process of the door body 30 being opened is described in terms of the following 8 angles. Among them, Q0 = 0° = G2 - G2, Q1 = G3 - G2, Q2 = G4 - G2, Q3 = G5 - G2, Q4 = G6 - G2, Q5 = G7 - G2, Q6 = G8 - G2, Q8` = 90°, Q7 = G9 - G2, Q8 = G10 - G2. It should be noted that the description of the angle relationship between the sixth embodiment and the first embodiment is only for corresponding illustration of the movement situation in the sixth embodiment by means of the figure, and the angles in the sixth embodiment are not restricted by the angle relationship in the above two embodiments.

[0363] When the door body 30 is closed, Q0 = 0°. When the first central axis I moves to the second guiding position I2 of the guiding track line S, the second central axis E is at E2 relative to the door body 30, and the third central axis F is at F2 relative to the door body 30; that is, the axis triangle IEF is at the second triangle position I2E2F2 relative to the door body 30.

[0364] When the door body 30 is opened to Q1 = G3 - G2, when the first central axis I moves to the third guiding position I3 of the guiding track line S, 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.

[0365] When the door body 30 is opened to Q2 = G4 - G2, 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 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.

[0366] When the door body 30 is opened to Q3 = G5 - G2, when the first central axis I moves to the fifth guiding position I5 of the guiding track line S, the second central axis E is at E5 relative to the door body 30, and the third central axis F is at F5 relative to the door body 30; that is, the axis triangle IEF is at the fifth triangle position I5E5F5 relative to the door body 30.

[0367] When the door body 30 is opened to Q4 = G6 - G2, the first central axis I moves to the sixth guiding position I6 of the guiding track line S, the second central axis E is at E6 relative to the door body 30, and the third central axis F is at F6 relative to the door body 30; that is, the axis triangle IEF is at the sixth triangle position I6E6F6 relative to the door body 30.

[0368] When the door body 30 is opened to Q5 = G7 - G2, the first central axis I moves to the seventh guiding position I7 of the guiding track line S, the second central axis E is located at E7 relative to the door body 30, and the third central axis F is located at F7 relative to the door body 30; that is, the axis triangle IEF is located at the seventh triangle position I7E7F7 relative to the door body 30.

[0369] When the door body 30 is opened to Q6 = G8 - G2, the first central axis I moves to the eighth guiding position I8 of the guiding track line S, the second central axis E is located at E8 relative to the door body 30, and the third central axis F is located at F8 relative to the door body 30; that is, the axis triangle IEF is located at the eighth triangle position I8E8F8 relative to the door body 30.

[0370] When the door body 30 is opened to Q8` = 90°, the first central axis I moves to the guiding position where I8` is located on 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 triangle position defined by I8`E8`F8` relative to the door body 30.

[0371] When the door body 30 is opened to Q7 = G9 - G2, the first central axis I moves to the ninth guiding position I9 of the guiding track line S, the second central axis E is located at E9 relative to the door body 30, and the third central axis F is located at F9 relative to the door body 30; that is, the axis triangle IEF is located at the ninth triangle position I9E9F9 relative to the door body 30.

[0372] When the door body 30 is opened to Q8 = G10 - G2, the first central axis I moves to the tenth guiding position I10 of the guiding track line S, 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 triangle position I10E10F10 relative to the door body 30.

[0373] The principle is the same as that in the first embodiment and will not be elaborated here. It can be obtained that in the sixth embodiment, according to the relativity of motion, taking the box body 10 as a reference object, the door body 30 has a displacement component parallel to the door rear wall 33 and a displacement component parallel to the door side wall 32 relative to the box body 10. Among them, the displacement component parallel to the door rear wall 33 is denoted as the first-direction displacement , and the displacement component parallel to the door side wall 32 is the second-direction displacement . In different opening stages of the door body 30, the directions of the first-direction displacement and the second-direction displacement will be different.

[0374] Next, the moving trend of the door body 30 will be described in the displacement coordinate system AOB set in the first embodiment.

[0375] (1) Combining ​ , ​As the door 30 opens from its closed position to a 90-degree angle, the door 30 rotates counterclockwise relative to the housing 10. The door sidewalls 32, rear wall 33, and front wall 31 also rotate counterclockwise during this stage of the opening process. Within the plane of the top wall of the housing 10, the door sidewalls 32 extend outward and forward in the direction from the second side edge N to the first side edge W (and from the rear wall 33 to the front wall 31). The door rear wall 33 extends inward and forward in the direction from the side wall 32 to the end of the door 30 opposite the side wall 32.

[0376] (1.1) If ​ In the process of the door body 30 opening from the closed state to Q3, with the box body 10 as a reference, the door body 30 has a first direction displacement parallel to the door rear wall 33 and pointing away from the door side wall 32 , parallel to the door side wall 32 and pointing to the second direction away from the door front wall 31 ; That is, the first direction displacement Pointing to the inner front side of the box 10 (inward and forward side), the second direction displacement It points to the inner rear side of the box body 10 (inward and rearward).

[0377] like ​ As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the closed state to Q3, the first direction displacement of the door body 30 is Located in the second quadrant (A<0, B>0), displacement in the second direction Located in the third quadrant (A<0, B<0). Displacement in the first direction and the second direction displacement Displacement decomposition is performed on the A axis and the B axis respectively; displacement in the first direction The displacement on the A axis is <0, the displacement on the B axis is >0;;Displacement in the second direction The displacement on the A axis is <0, the displacement on the B axis is <0. Among them, the trajectory feature setting of the present invention has ; then there is, = + <0, = + > 0. That is, during the process of the door body 30 opening from the closed state to Q3, in the displacement coordinate system AOB, the door body 30 has a first partial displacement <0 and second fractional displacement > 0. Thus, it can be concluded that: relative to the cabinet 10, the door body 30 has a tendency to move in the negative direction of the A axis and in the positive direction of the B axis; that is, during the process of the door body 30 opening from the closed state to Q3, the door body 30 has a tendency to move inward and forward relative to the cabinet 10.

[0378] (1.2) As ​ , combined with the description of the displacement direction of the door body 30 relative to the cabinet 10 during the process of the door body 30 opening from Q3 (Q3 < 90°) to Q8` = 90°: during the process of the door body 30 opening from Q3 to 90°, taking the cabinet 10 as a reference, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 , and a second-direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31 ; that is, the first-direction displacement points to the outer rear side (outward and backward side) of the cabinet 10, and the second-direction displacement points to the outer front side (outward and forward side) of the cabinet 10.

[0379] As ​ , in the displacement coordinate system AOB, during the process of the door body 30 opening from Q3 to 90°, the first-direction displacement of the door body 30 is located in the fourth quadrant (A > 0, B < 0), and the second-direction displacement is located in the first quadrant (A > 0, B > 0). The first-direction displacement and the second-direction displacement are respectively decomposed into displacements on the A axis and the B axis; the component displacement of the first-direction displacement on the A axis is > 0, and the component displacement on the B axis is < 0;; the component displacement of the second-direction displacement on the A axis is > 0, and the component 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, during the process of the door body 30 opening from Q3 to 90°, in the displacement coordinate system AOB, the door body 30 has a first component displacement > 0 and a second component displacement < 0. Thus, it can be concluded that: relative to the cabinet 10, the door body 30 has a tendency to move in the positive direction of the A axis and in the negative direction of the B axis; that is, during the process of the door body 30 opening from Q3 to 90°, the door body 30 has a tendency to move outward and backward relative to the cabinet 10.

[0380] As ​ shown, when the door body 30 is opened to 90°, the door side wall 33 is parallel to the plane where the pick-and-place opening is located and perpendicular to the reference plane M0; at this time, the door rear wall 33 is parallel to the reference plane M0 and perpendicular to the plane where the pick-and-place opening is located. That is, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends from the inside to the outside, and the door rear wall 33 extends from the back to the front.

[0381] When the door body 30 is opened to 90°, taking the box body 10 as a reference, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 , and a second-direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31 ; that is, the first-direction displacement points to the rear side of the box body 10, and the second-direction displacement points to the outside of the box body 10.

[0382] As ​ shown, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the first-direction displacement of the door body 30 is along the B axis and points to the negative direction of the B axis, and the second-direction displacement is along the A axis and points to the positive direction of the A axis. The first-direction displacement and the second-direction displacement are respectively decomposed into displacements on the A axis and the B axis; the component displacement of the first-direction displacement on the A axis is = 0, and the component displacement on the B axis is = <0; the component displacement of the second-direction displacement on the A axis is = >0, and the component 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 a first component displacement >0 and a second component displacement <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 at 90°, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0383] (2) As ​ shown, when the door body 30 rotates from 90° to open to Q8 (Q8 > 90°), during the counterclockwise rotation of the door body 30 relative to the box body 10, the door side wall 32 also rotates counterclockwise during the opening process at this stage. In the plane of the top wall of the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends outward and backward; along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the door rear wall 33 extends outward and forward.

[0384] During the process of the door body 30 rotating from 90° to open to Q8, taking the box body 10 as a reference, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 , and a second-direction displacement parallel to the door side wall 32 and pointing to the side of the door front wall 31 ; that is, the first-direction displacement points to the inner rear side of the box body 10 (inward and backward side), and the second-direction displacement points to the outer rear side of the box body 10 (outward and backward side).

[0385] As ​ shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from 90° to Q8, the first-direction displacement of the door body 30 is located in the third quadrant (A < 0, B < 0), and the second-direction displacement is located in the fourth quadrant (A > 0, B < 0). The first-direction displacement and the second-direction displacement are respectively decomposed into displacements on the A-axis and the B-axis; the component displacement of the first-direction displacement on the A-axis is < 0, and the component displacement on the B-axis is < 0;; the component displacement of the second-direction displacement on the A-axis is > 0, and the component displacement on the B-axis is < 0. Among them, under the trajectory feature setting of the present invention, there is ; then there is, = + > 0, = + < 0. That is, during the process of the door body 30 from 90° to Q8, in the displacement coordinate system AOB, the door body 30 has a first component displacement > 0 and a second component displacement <0. Thus, it can be concluded that: relative to the cabinet 10, the door body 30 has a tendency to move in the positive direction of the A axis and move in the negative direction of the B axis; that is, during the process of the door body 30 opening from 90° to Q8, the door body 30 has a tendency to move outward and backward relative to the cabinet 10.

[0386] In summary, during the whole process of the door body 30 opening from the closed state to Q8, relative to the cabinet 10, the movement of the door body 30 is divided into two stages, and the door body 30 has a tendency to move inward first and then move outward.

[0387] Same as Embodiment 1, it should be noted that in this embodiment, only some angles in the range of 0 to 90°, 90°, and some angles in the range of 90° to Gmax = Q8 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 characteristics of the present invention can make the door body 30 have a movement trend of moving inward first and then outward (inward → outward) during the opening process.

[0388] In the sixth embodiment, the door body 30 has a tendency to move inward in the first stage of opening. Specifically, as a settable method, during the process of the door body 30 rotating and opening from the closed state to Q3, while the first hinge shaft 41 moves relative to the guiding groove in a direction away from the door side wall 32 and closer to the front wall 31 of the door, the second hinge shaft 42 moves relative to the guiding groove in a direction closer to the front wall 31 of the door, and the third hinge shaft 43 moves relative to the guiding groove in a direction away from the front wall 31 of the door. The above setting of the door body 30 moving inward during the opening process is applicable to the scenario of the refrigerator being installed in an embedded manner in the cabinet. On the one hand, it can be set in the early stage of the door body 30 opening, so that the door body 30 moves inward, which can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, and limit the distance of the first side edge W exceeding the reference plane M0 not to exceed the distance between the cabinet and the side wall of the refrigerator body, effectively avoiding interference between the door body 30 and the cabinet 100 when the door is opened, and further reducing the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of the cabinet 100 space. On the other hand, in the sixth embodiment, the door body 30 moves inward during the process of opening to the maximum angle, which 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.

[0389] As a settable method, during the process of the above door body 30 rotating and opening from the closed state to Q3, the third hinge shaft 43 moves relative to the guiding groove in a direction away from the front wall 31 of the door and closer to the door side wall 32. As another settable method, the third hinge shaft 43 moves relative to the guiding groove in a direction away from the front wall 31 of the door and first moves in a direction away from the door side wall 32, and then moves in a direction closer to the door side wall 32.

[0390] As a configurable manner, during the process of the door body 30 rotating from the closed state to an open state at Q3, the second hinge shaft 42 cooperates with the first guiding section K1; when the door body 30 is opened to Q3, the second hinge shaft 42 cooperates with the second connection position b. In this setting, the second hinge shaft 42 moves relative to the guiding groove in a direction approaching the front door wall 31 and the door side wall 32.

[0391] In the sixth embodiment, the door body 30 has a tendency to move outwards during the second opening stage; that is, the door body 30 has a tendency to move inwards during the process of continuing to open from Q3. Specifically, as a configurable manner, during the process of the door body 30 opening from Q3 to Q8, while the first hinge shaft 41 moves relative to the guiding groove in a direction away from the door side wall 32 and towards the front door wall 31, the second hinge shaft 42 moves relative to the guiding groove in a direction away from the door side wall 32 and towards the front door wall 31, and the third hinge shaft 43 moves relative to the guiding groove in a direction approaching the door side wall 32. As a configurable manner, during the opening process of the second stage, the third hinge shaft 43 first moves relative to the guiding groove in a direction away from the front door wall 31 and then in a direction approaching the front door wall 31. In the above settings, Q3 < 90°. That is, during the process of the door body 30 opening towards 90°, it has a tendency to move outwards; it can reduce the occlusion of the access opening by the door body 30, facilitating the taking and placing of items, and can also increase the lateral width of the drawer and the space utilization rate of the drawer on the premise of ensuring that the drawer placed in the storage room can be pulled out. Additionally, it can be set that when used in conjunction with the first stage in this embodiment, in the scenario of the built-in installation of the refrigerator in the cabinet, the later outward movement of the door body 30 can compensate for the displacement of the door body 30 moving inwards in the early stage to avoid the cabinet, so as to make full use of the lateral space of the cabinet and reduce the occlusion of the access opening caused by the inward movement of the door body 30 in the early stage.

[0392] It should be noted that the first stage and the second stage in the sixth embodiment can be set independently without being restricted by the movement of the other stage; they can also be set to first go through the first stage and then the second stage.

[0393] Combined with ​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 in this movement trend, when the door body 30 is opened, the first side edge W is located at W` relative to the box body 10; the second side edge N is located at N` relative to the box body 10; the side sealing edge H is located at H` relative to the box body 10. Correspondingly, when the door body 30 is opened to the subsequent state according to the trajectory setting in this embodiment (the door body 30 is represented by a solid line), compared with its previous state, the rotation axis of the door body 30 has changed relative to the door body 30; at this time, the first side edge W is located at W relative to the box body 10; the second side edge N is located at N relative to the box body 10; the side sealing edge H is located at H relative to the box body 10. As ​ In it, the position where the door body 30 represented by the dotted line is located is the position reached when the door body 30 simply rotates around the first central axis I (I2) relative to the door body 30 when the door body 30 is closed to G1; the position where the door body 30 represented by the solid line is located is the position reached when it is rotated and opened to Q1 in the setting manner of the present invention; ​ In it, the position where the door body 30 represented by the dotted line is located is the position reached when the door body 30 is rotated and opened to Q1 in the rotation manner of the present invention and then simply rotates around the first central axis I (the first central axis I (I3) in the previous state) relative to the door body 30 when the door body 30 is opened to Q1 to Q2; the position where the door body 30 represented by the solid line is located is the position reached when it is rotated and opened to Q2 in the setting manner of the present invention; similarly ​ It is a schematic diagram of the position comparison of the above two different opening methods at different opening angles.

[0394] 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:

[0395] During the process of the door body 30 being opened from the closed state to Q3, in this application, the position W where the first side edge is located is always on the side of W` close to the second body side wall and far from the access opening; the position N where the second side edge is located is always on the side of N` close to the second body side wall and far from the access opening; the position H where the side sealing edge is located 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 Q3, the door body 30 has a tendency to move inward and forward.

[0396] During the process of the door body 30 being opened from Q3 to Q8, in this application, the position W where the first side edge is located is always on the side of W` far from the second body side wall and close to the access opening; the position N where the second side edge is located is always on the side of N` far from the second body side wall and close to the access opening; the position H where the side sealing edge is located 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 Q3 to Q8, the door body 30 has a tendency to move outward and backward.

[0397] The movement trends in the above - mentioned stages are consistent with the foregoing description.

[0398] It should be noted that the comparison between the current position of the door body 30 in the present invention and the position where the assumed door body 30 rotates solely around the first central axis I from the previous state in the present invention to the opening angle of the door body 30 in the present invention is representative. It can represent the movement trend of the door body 30 relative to the previous state during the opening process of the door body 30 in the present invention. Here, only some selected angles are used for comparison and explanation to present the movement trend when the door body 30 opens.

[0399] It should be noted that the movement of the first hinge axis 41 relative to the guiding portion 50, and the movements of the second hinge axis 42 and the third hinge axis 43 relative to the guiding portion 60 can cause the door body 30 to move inward or outward in different stages; the length of the above - mentioned guiding trajectory line K is not limited by all the above - mentioned stages; it can be set to have the movement characteristics of at least one of the stages.

[0400] In summary, Embodiments 1 to 6 of the present invention illustrate the solution of the present invention from multiple perspectives; it should be noted that between the embodiments, the main focus is on the differences from the embodiments they mention, and not much is said about the similarities. 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.

[0401] Finally, it should be noted that: the above - mentioned embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0402] For the sake of convenience in explanation, the above description has been made in conjunction with specific embodiments. However, the above - mentioned exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are for better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. Refrigerator, characterized in that, It includes: A box body that defines a storage room with an access opening and has a first body side wall and a second body side wall 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 close to the hinge assembly; The hinge assembly includes: A first hinge shaft, a second hinge shaft, and a third hinge shaft that 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; relative to the plane where the access opening is located, the first hinge shaft, the second hinge shaft, and the third hinge shaft are close to the front wall of the door when the door body is closed; A guiding part and a guiding portion that are located at the end of the door body and close to the door side wall; the guiding part defines a linear guiding track line that extends from one end close to the door side wall and the front wall of the door in a direction away from the door side wall and the front wall of the door; the guiding portion defines a closed circular guiding track line that 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 part in an inclined manner with respect to the door side wall, the second hinge shaft and the third hinge shaft both move relative to the guiding portion, and the door body opens the access opening and moves a certain distance in the transverse direction; The guiding track line includes a second guiding section K2; along the direction from the door side wall to the end of the door body opposite to the door side wall, the second guiding section K2 extends in a 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 interference fit with the second guiding section K2.

2. The refrigerator according to claim 1, wherein: The guiding track line includes a fifth guiding section K5 located on the side of the second guiding section K2 away from the front wall of the door; when the door body is opened to 90°, the third hinge shaft is in interference fit with the fifth guiding section K5.

3. 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 included angle ∠FIE formed by the side IF and the side IE with the vertex I as the vertex in the axis triangle IEF is an obtuse angle.

4. The refrigerator according to claim 3, 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 3-4, characterized in that: In the projection on the plane where the top wall of the box body is located, the straight line IE where the first central axis I and the second central axis E are located is parallel to the pick-and-place 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 and away from the pick-and-place opening.

6. The refrigerator according to claim 1 or 2 or 3 or 4, characterized in that: The included angle between the guiding track line and the front wall of the door is denoted as θ; θ belongs to any value in the range of 20° to 45°; When the door body is opened, the first hinge axis moves along the guiding track line in a straight line inclined relative to the front wall of the door.

7. The refrigerator according to claim 1 or 2 or 3 or 4, characterized in that: The guiding track line includes a first guiding section K1, a third guiding section K3, a fourth guiding section K4, a fifth guiding section K5, a sixth guiding section K6, and a seventh guiding section K7; the first guiding section K1, the second guiding section K2, the third guiding section K3, the fourth guiding section K4, the fifth guiding section K5, the sixth guiding section K6, and the seventh guiding section K7 are connected end to end in sequence; Among them, the connection point between the seventh guiding section K7 and the first guiding section K1 is denoted as the first connection position a; the connection points where the first guiding section K1, the second guiding section K2, the third guiding section K3, the fourth guiding section K4, the fifth guiding section K5, the sixth guiding section K6, and the seventh guiding section K7 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, the sixth connection position f, and the seventh connection position g in sequence; In the projection on the plane where the front wall of the door is located, the seventh connection position g, the first connection position a, the second connection position b, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are successively away from the side wall of the door; In the projection on the plane where the side wall of the door is located, the second connection position b, the third connection position c, the fourth connection position d, the first connection position a, the fifth connection position e, the seventh connection position g, and the sixth connection position f are successively away from the front wall of the door.

8. The refrigerator according to claim 1 or 2 or 3 or 4, characterized in that: The door body has a door rear wall disposed 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; The plane where the pick-and-place 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 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 being opened 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; During the process of the door body being opened to the maximum angle Gmax, the movement track of the second side edge is an arc.

9. The refrigerator according to claim 8, characterized in that: A door seal is provided on the door rear wall; when the door body is closed, the door seal is in contact with the front end surface of the box body surrounding the pick-and-place 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. In the projection on the plane where the top wall of the box body is located, during the process of the door body being opened from the closed state, 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; During the process of the door body being opened to the maximum angle Gmax, the movement track of the side sealing edge H is an arc.

10. The refrigerator according to claim 9, characterized in that: In the plane where the top wall of the box body is located, the center of the circle where the movement track of the arc-shaped second side edge is located is denoted as the center of the second side edge ON, and the center of the circle where the movement track of the arc-shaped side sealing edge is located is denoted as the center of the side sealing edge OH; Among them, the radius of the circle where the movement track of the second side edge is located is smaller than the radius of the circle where the movement track of the side sealing edge is located; The central axis of the first hinge shaft, the center of the second side edge ON, and the center of the side sealing edge OH are successively away from the first side wall of the body; and the center of the side sealing edge OH, the central axis of the first hinge shaft, and the center of the second side edge ON are successively away from the plane where the access opening is located.

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