Refrigerator

Abstract

The present invention provides a refrigerator, which includes a box body, a hinge assembly, two door bodies, a flipping beam provided on one of the door bodies, and a first mating portion and a second mating portion that cooperate with each other; the hinge assembly includes a guiding portion and a guiding portion located on the door body, a first hinge shaft, a second hinge shaft and a third hinge shaft fixed to the box body; the guiding portion is linear; the guiding portion defines a closed-loop guiding track line; during the process of closing the door body by Q2, the second mating portion cooperates with the first mating portion to drive the door body to move in the closing direction; the first hinge shaft moves linearly relative to the guiding portion along the guiding track line in a direction close to the side wall of the door and away from the front wall of the door, both the second hinge shaft and the third hinge shaft move relative to the guiding portion, the door body opens the access port and moves inward a certain distance, and drives the flipping beam to flip; the refrigerator of the present invention enables the door body to move inward in the final stage of closing, so as to drive the flipping beam to flip, ensuring the effective closing of the door body.

Description

Technical Field

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

[0002] In the related art, for a refrigerator with two relatively arranged door bodies, the two relatively arranged door bodies of the refrigerator cooperate together to open or close the access opening; in order to ensure the sealing performance when the door bodies are closed, in the existing refrigerator, a turning beam is provided on one side of one of the two door bodies close to the other; when the two door bodies are closed, the turning beam turns over and closes the gap between the two opposite door bodies, so as to effectively prevent cold air from overflowing.

[0003] Currently, the hinge structure of the refrigerator door body is mostly in the form of a single-axis setting, or is set as a double-axis to make the door body move inwards when opened to meet the requirements of being embedded. For the hinge form of a single-axis setting, when the door body is closed, an external force needs to be continuously applied to push the door body to close to ensure that the turning beam turns in place. For the hinge form of a double-axis setting to make the door body move inwards when opened to meet the requirements of being embedded, when the door body is closed, the door body has a tendency to move outwards in the stage close to closing, which weakens the acting force that drives the turning beam to turn when the door body is closed, and easily causes the turning beam to not effectively turn in place and be close to the cold air overflowing. Summary of the Invention

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

[0005] For this reason, the present application aims to provide a refrigerator, and the hinge structure of the refrigerator enables the door body to move inwards a certain distance when closed.

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

[0007] A box body, which defines a storage compartment with an access opening, and has a first body side wall and a second body side wall that are relatively arranged;

[0008] Two door bodies, which are relatively arranged on the box body; the door body has a front door wall that is away from the box body when the door body is closed, and a door side wall that is connected to the front door wall and away from the other door body;

[0009] A turning beam, which is arranged at one end of one of the two relatively arranged door bodies close to the other;

[0010] A first engaging portion, which is fixedly connected to the box body;

[0011] A second engaging portion, which is arranged at the end of the door body and close to the door side wall; the second engaging portion locks or unlocks with the first engaging portion to lock or unlock the door body and the box body;

[0012] A hinge assembly that connects the door body and the box body to enable the door body to rotate relative to the box body; the hinge assembly includes:

[0013] A first hinge shaft, a second hinge shaft, and a third hinge shaft, which are fixed on the box body and close to the first side wall of the body; the second hinge shaft, the first hinge shaft, and the third hinge shaft are sequentially away from the first side wall of the body;

[0014] A guiding part and a guiding portion, which are located at the end of the door body and close to the door side wall; the guiding part defines a linear guiding track line, and the guiding portion defines a closed circular guiding track line; wherein, the guiding track line surrounds the guiding track line;

[0015] During the process of the door body closing from angle Q2, the second matching part cooperates with the first matching part to drive the door body to move in the closing direction; the first hinge shaft moves linearly along the guiding track line relative to the guiding part in a direction close to the door side wall and away from the front wall of the door; the second hinge shaft and the third hinge shaft both move relative to the guiding portion, the door body opens the access opening and moves inward a certain distance, and drives the flipping beam to flip.

[0016] In some embodiments of the refrigerator of the present application, within the projection plane of the top wall of the box body, on the side of the box body close to the door body, a displacement coordinate system AOB is established; wherein, in the displacement coordinate system AOB, OB is perpendicular to the plane where the access opening is located, and the direction from the access opening to the front wall of the door when the door is closed is positive; OA is parallel to the plane where the access opening is located, and the direction from the second side wall to the first side wall is positive; the displacement coordinate system AOB is a coordinate system stationary relative to the box body;

[0017] The door body has a door rear wall disposed opposite to the front wall of the door;

[0018] The door body has a second-direction displacement along a direction parallel to the door rear wall and a third-direction displacement parallel to the door side wall

[0019] The second-direction displacement The component displacement on the A axis is The component displacement on the B axis is The third-direction displacement The component displacement on the A axis is The component displacement on the B axis is

[0020] During the process of the door body closing from angle Q2, the second-direction displacement Parallel to the direction of the rear wall of the door and pointing to the side away from the side wall of the door, the third-direction displacement Parallel to the side wall of the door and pointing to the front wall of the door;

[0021] Wherein,

[0022] 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;

[0023] In the projection on the plane of the top wall of the cabinet, the first central axis I, the second central axis E and the third central axis F form an axis triangle IEF; wherein, the axis triangle IEF is an obtuse triangle, and ∠FIE is an obtuse angle.

[0024] In some embodiments of the refrigerator of the present application, ∠FIE belongs to any value in the range of 172° to 178°.

[0025] In some embodiments of the refrigerator of the present application, in the projection on the plane of the top wall of the cabinet, the longest side EF of the axis triangle IEF is located on the side of the vertex I of the axis triangle IEF away from the access opening.

[0026] In some embodiments of the refrigerator of the present application, in the projection on the plane of the top wall of the cabinet, 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.

[0027] In some embodiments of the refrigerator of the present application, along the direction from the wall surface of the door body opposite to the front wall of the door to the front wall of the door, the distance between the guiding track line and the side wall of the door increases linearly; the included angle between the guiding track line and the front wall of the door belongs to any value in the range of 58° to 88°.

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

[0029] A door seal is provided on the rear wall of the door; when the door body is closed, the door seal fits against the front end surface of the cabinet body surrounding the access opening; the door seal includes a side seal edge H close to the side wall of the door and away from the front wall of the door;

[0030] The plane where the pick-and-place opening is located is denoted as the second reference plane M2; the plane where the second body side wall is located is denoted as the first reference plane M1, and the first reference plane M1 is perpendicular to the second reference plane M2; the first reference plane M1 and the second reference plane M2 remain stationary relative to the cabinet during the opening process of the door relative to the cabinet;

[0031] In the projection on the plane where the top wall of the cabinet is located, during the opening process of the door from the closed state, the second side edge N first moves in a direction close to the first reference plane M1 and the second reference plane M2, and then moves in a direction close to the first reference plane M1 and away from the second reference plane M2;

[0032] The side sealing 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.

[0033] In some embodiments of the refrigerator of the present application, the centroid of the guiding trajectory line is denoted as the guiding centroid O, and the guiding trajectory line surrounds its guiding centroid O;

[0034] The guiding trajectory line includes a first guiding segment K1, a second guiding segment K2, a third guiding segment K3, a fourth guiding segment K4, a fifth guiding segment K5, and a sixth guiding segment K6 that are connected end to end in sequence; the first guiding segment K1, the second guiding segment K2, the third guiding segment K3, the fourth guiding segment K4, and the fifth guiding segment K5 all bulge away from the guiding centroid O; the sixth guiding segment K6 bulges towards the guiding centroid O to enable smooth transition connection between the fifth connection position e and the first connection position a;

[0035] Among them, the connection point of the sixth guiding segment K6 and the first guiding segment K1 is denoted as the first connection position a; the connection points 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, and the sixth guiding segment K6 connected in sequence are denoted as the second connection position b, the third connection position c, the fourth connection position d, the fifth connection position e, and the sixth connection position f in sequence;

[0036] In the projection on the plane where the front wall of the door is located, the second connection position b, the third connection position c, the first connection position a, the sixth connection position f, the fourth connection position d, and the fifth connection position e are sequentially away from the door side wall;

[0037] In the projection on the plane where the door side wall is located, the fourth connection position d, the third connection position c, the second connection position b, the first connection position a, the sixth connection position f, and the fifth connection position e are sequentially away from the front wall of the door.

[0038] In some embodiments of the refrigerator of the present application, the plane passing through the centroid of the door body and parallel to the front wall of the door is denoted as the centroid plane P; during the opening process of the door body, the centroid plane P remains stationary relative to the door body;

[0039] During the process of the door body being opened from the closed state to the angle G`1, the centroid plane P is located on the side of the first hinge axis, the second hinge axis, and the third hinge axis away from the front wall of the door;

[0040] During the process of the door body being opened from the angle G`1 to the maximum angle G that the door body can reach max the centroid plane P is located between the first hinge axis and the third hinge axis and on the side of the first hinge axis away from the second hinge axis;

[0041] wherein, G`1:G max belongs to any value in 0.8 to 1.

[0042] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0043] The present invention provides a refrigerator, which includes a box body, a hinge assembly, two door bodies, a flipping beam provided on one of the door bodies, a first matching part and a second matching part that cooperate with each other; the hinge assembly includes a guiding part and a guiding part located on the door body, a first hinge axis, a second hinge axis and a third hinge axis fixed on the box body; the guiding part is linear; the guiding part defines a closed annular guiding track line; during the process of the door body being closed from Q2, the second matching part cooperates with the first matching part to drive the door body to move in the closing direction; the first hinge axis moves linearly along the guiding track line towards the side wall of the door and away from the front wall of the door relative to the guiding part, both the second hinge axis and the third hinge axis move relative to the guiding part, the door body opens the access opening and moves inward by a certain distance, and drives the flipping beam to flip; the refrigerator of the present invention enables the door body to move inward in the final stage of closing to drive the flipping beam to flip, ensuring the effective closing of the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a perspective view of the refrigerator according to Embodiment 1 of the present invention;

[0045] Figure 2 is a top view of the refrigerator according to Embodiment 1 of the present invention;

[0046] Figure 3 is Figure 2 a partial structural schematic diagram of the cooperation between the first hinge member and the second hinge member when the door body is closed;

[0047] Figure 4 is a structural schematic diagram of the first hinge member in Embodiment 1 of the refrigerator of the present invention;

[0048] Figure 5 It is a schematic structural view of the first hinge member in the first embodiment of the refrigerator of the present invention from another perspective;

[0049] Figure 6 It is a schematic view of the relative positions of the door body and the cabinet body at the connection area when the door body is closed in the first embodiment of the refrigerator of the present invention;

[0050] Figure 7 It is a schematic view of the relative positions of the door body and the cabinet body at the connection area when the door body is opened to the maximum angle in the first embodiment of the refrigerator of the present invention;

[0051] Figure 8 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0052] Figure 9 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0053] Figure 10 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0054] Figure 11 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0055] Figure 12 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0056] Figure 13 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0057] Figure 14 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0058] Figure 15 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0059] Figure 16 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0060] Figure 17 It is when the door body of the refrigerator in the first embodiment of the present invention is opened to a view at the hinge assembly;

[0061] Figure 18 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 ;

[0062] Figure 19 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 ;

[0063] Figure 20 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;

[0064] Figure 21 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened from the closed state to different angles during the opening process to the fourth angle G4;

[0065] Figure 22 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened from the fourth angle G4 to the eleventh angle G 11 during the opening process to different angles;

[0066] Figure 23 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to ;

[0067] Figure 24 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to ;

[0068] Figure 25 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to ;

[0069] Figure 26 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to ;

[0070] Figure 27 is a schematic diagram of the positions of the first hinge shaft relative to the guiding portion, the second hinge shaft and the second and third hinge shafts relative to the guiding portion when the door body of the refrigerator in the first embodiment of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the positions of the second hinge axis and the third hinge axis relative to the guiding part when [the door is in a certain state];

[0071] Figure 28 This is when the door body in the first embodiment of the refrigerator of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the positions of the second hinge axis and the third hinge axis relative to the guiding part when [the door is in a certain state];

[0072] Figure 29 This is when the door body in the first embodiment of the refrigerator of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the positions of the second hinge axis and the third hinge axis relative to the guiding part when [the door is in a certain state];

[0073] Figure 30 This is when the door body in the first embodiment of the refrigerator of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the positions of the second hinge axis and the third hinge axis relative to the guiding part when [the door is in a certain state];

[0074] Figure 31 This is when the door body in the first embodiment of the refrigerator of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the positions of the second hinge axis and the third hinge axis relative to the guiding part when [the door is in a certain state];

[0075] Figure 32 This is when the door body in the first embodiment of the refrigerator of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the positions of the second hinge axis and the third hinge axis relative to the guiding part when [the door is in a certain state];

[0076] Figure 33 This is when the door body in the first embodiment of the refrigerator of the present invention is opened to Schematic diagram of the positions of the first hinge axis relative to the guiding part, the second hinge axis, and the positions of the second hinge axis and the third hinge axis relative to the guiding part when [the door is in a certain state];

[0077] Figure 34 Schematic diagram of the relative positions of the door body and the cabinet when the door body of the first embodiment of the refrigerator of the present invention is closed;

[0078] Figure 35 Schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body in the first embodiment of the refrigerator of the present invention is less than the fourth angle G4;

[0079] Figure 36 Schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body in the first embodiment of the refrigerator of the present invention is greater than the fourth angle G4 and less than 90°;

[0080] Figure 37It 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°;

[0081] 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 greater than 90° and less than the eleventh angle G 11 ;

[0082] Figure 39 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;

[0083] Figure 40 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 state of being opened to G1 to G2 with its first central axis I at the time of being opened to G1 as the rotation axis;

[0084] Figure 41 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 state of being opened to G2 to G3 with its first central axis I at the time of being opened to G2 as the rotation axis;

[0085] Figure 42 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 state of being opened to G3 to G4 with its first central axis I at the time of being opened to G3 as the rotation axis;

[0086] Figure 43 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 state of being opened to G4 to G5 with its first central axis I at the time of being opened to G4 as the rotation axis;

[0087] Figure 44 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 state of being opened to G5 to G2 with its first central axis I at the time of being opened to G5 as the rotation axis;

[0088] Figure 45 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 state of being opened to G6 to G2 with its first central axis I at the time of being opened to G6 as the rotation axis;

[0089] Figure 46 It is a comparison diagram of the position of the door body when it is opened to G8 and the position of the door body when it rotates from the state of being opened to G7 to G3 with its first central axis I at the time of being opened to G7 as the rotation axis;

[0090] Figure 47It is a comparison diagram of the position when the door body of the refrigerator in Embodiment 1 of the present invention is opened to G9 and the position when the door body is opened to the G8 state and rotated to the G4 state with the first central axis I when it is opened to G8 as the rotation axis;

[0091] Figure 48 It is the position when the door body of the refrigerator in Embodiment 1 of the present invention is opened to G 10 and the comparison diagram of the position when the door body is opened to the G9 state and rotated to the G5 state with the first central axis I when it is opened to G9 as the rotation axis;

[0092] Figure 49 It is the position when the door body of the refrigerator in Embodiment 1 of the present invention is opened to G 11 and the comparison diagram of the position when the door body is opened to G 10 state and rotated to G 10 with the first central axis I when it is opened to G max as the rotation axis;

[0093] Figure 50 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 hinge axis and the third hinge axis relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to ;

[0094] Figure 51 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 hinge axis and the third hinge axis relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to ;

[0095] Figure 52 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 hinge axis and the third hinge axis relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to ;

[0096] Figure 53 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 hinge axis and the third hinge axis relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to ;

[0097] Figure 54 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 hinge axis and the third hinge axis relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to ;

[0098] Figure 55 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 hinge axis and the third hinge axis relative to the guiding part when the door body of the refrigerator in Embodiment 2 of the present invention is opened to ;

[0099] Figure 56 In the second embodiment of the refrigerator of the present invention, when the door body is opened to , the schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second and third hinge shafts relative to the guiding part;

[0100] Figure 57 In the second embodiment of the refrigerator of the present invention, when the door body is opened to , the schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second and third hinge shafts relative to the guiding part;

[0101] Figure 58 In the second embodiment of the refrigerator of the present invention, when the door body is opened to , the schematic diagram of the positions of the first hinge shaft relative to the guiding part, the second hinge shaft, and the second and third hinge shafts relative to the guiding part;

[0102] Figure 59 In the second embodiment of the refrigerator of the present invention, during the process of the door body being opened from the closed state to Q7, the schematic diagrams 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 at different opening angles;

[0103] Figure 60 The schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body in the first embodiment of the refrigerator of the present invention is less than Q2;

[0104] Figure 61 The schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body in the first embodiment of the refrigerator of the present invention is greater than Q2 and less than 90°;

[0105] Figure 62 The schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body in the first embodiment of the refrigerator of the present invention is 90°;

[0106] Figure 63 The schematic diagram of the relative positions of the door body and the cabinet when the opening angle of the door body in the first embodiment of the refrigerator of the present invention is greater than 90° and less than Q7;

[0107] Figure 64 The comparison diagram of the position of the door body when it is opened to Q1 in the first embodiment of the refrigerator of the present invention and the position of the door body when it rotates from the closed state around its first central axis I when it is closed to G1;

[0108] Figure 65 The comparison diagram of the position of the door body when it is opened to Q2 in the first embodiment of the refrigerator of the present invention and the position of the door body when it rotates from the state of being opened to Q1 around its first central axis I when it is opened to Q1 to G2;

[0109] Figure 66It 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 Q3 and the position when the door body in the state of being opened to Q2 is rotated to G3 with the first central axis I when it is opened to Q2 as the rotation axis;

[0110] Figure 67 It is a comparison diagram of the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q4 and the position when the door body in the state of being opened to Q3 is rotated to G4 with the first central axis I when it is opened to Q3 as the rotation axis;

[0111] Figure 68 It is a comparison diagram of the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q5 and the position when the door body in the state of being opened to Q4 is rotated to G5 with the first central axis I when it is opened to Q4 as the rotation axis;

[0112] Figure 69 It is a comparison diagram of the position when the door body of the refrigerator in the first embodiment of the present invention is opened to Q6 and the position when the door body in the state of being opened to Q5 is rotated to G2 with the first central axis I when it is opened to Q5 as the rotation axis;

[0113] Figure 70 It is the refrigerator in the first embodiment of the present invention when the door body is opened to Q 6` and the comparison diagram of the position when the door body in the state of being opened to Q6 is rotated to G2 with the first central axis I when it is opened to Q6 as the rotation axis;

[0114] Figure 71 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 in the state of being opened to Q6 is rotated to G2 with the first central axis I when it is opened to Q6 as the rotation axis;

[0115] Figure 72 It is a three-dimensional view of the refrigerator in the third embodiment of the present invention;

[0116] Figure 73 It is a top view of the refrigerator in the third embodiment of the present invention;

[0117] Figure 74 It is Figure 73 a partial structural schematic diagram of the relative position of the two door bodies when the door body is closed;

[0118] Figure 75 It is a cooperation schematic diagram of the two side sealing strips when the door body of the refrigerator in the third embodiment is in the closed state;

[0119] Figure 76 It is a relative position schematic diagram of the two side sealing strips when the door body of the refrigerator in the third embodiment starts to open;

[0120] Figure 77 It is a top view of the refrigerator in the fourth embodiment of the present invention relative to the cabinet;

[0121] Figure 78 It is a perspective view of the refrigerator in the fifth embodiment of the refrigerator of the present invention;

[0122] Figure 79 It is a schematic diagram of the relative position of the flip beam and the cabinet body from another perspective when the door body is opened in the fifth embodiment of the refrigerator of the present invention;

[0123] Figure 80 It is a top view of the refrigerator in the fifth embodiment of the refrigerator of the present invention;

[0124] Figure 81 It is when the door body of the refrigerator in the fifth embodiment of the present invention is closed to G S a schematic diagram of the relative position of the door body, the guide block and the guide groove;

[0125] Figure 82 It is when the door body of the refrigerator in the fifth embodiment of the present invention is closed to G F a schematic diagram of the relative position of the door body, the guide block and the guide groove;

[0126] Figure 83 It is an exploded structural schematic diagram of the mounting block and the end of the door body in the fifth embodiment of the refrigerator of the present invention;

[0127] Figure 84 It is a structural schematic diagram of the first matching part and the second matching part when the door body is in the closed state in the fifth embodiment of the refrigerator of the present invention;

[0128] Figure 85 It is a structural schematic diagram when the door body of the refrigerator in the fifth embodiment of the present invention is closed from the open state until the first matching part and the second matching part come into contact;

[0129] Figure 86 It is a structural schematic diagram when the door body of the refrigerator in the fifth embodiment of the present invention is closed from the open state until the first matching part and the second matching part interact to make the elastic deformation of the second matching part the largest;

[0130] Figure 87 It is a top view of the refrigerator relative to the cabinet in the sixth embodiment of the refrigerator of the present invention.

[0131] In the above figures: In the above figures: box body 10; cabinet 100; door body 30; front door wall 31; door side wall 32; door rear wall 33; first side edge W; second side edge N; receiving groove 37; door end cap 38; centroid plane P; door seal strip 5; side seal edge H; hinge plate 40; connecting portion 401; extending portion 402; stopping portion 403; hooking gap 404; first extension plate 4021; second extension plate 4022; first hinge shaft 41; second hinge shaft 42; third hinge shaft 43; first central axis I; second central axis E; third central axis F; guiding portion 50; guiding track line S; first guiding position I1; second guiding position I2; third guiding position I3; fourth guiding position I4; fifth guiding position I5; sixth guiding position I6; guiding portion 60; guiding track line K; first guiding segment K1; second guiding segment K2; third guiding segment K3; fourth guiding segment K4; fifth guiding segment K5; sixth guiding segment K6; seventh guiding segment K7; first connecting position a; second connecting position b; third connecting position c; fourth connecting position d; fifth connecting position e; sixth connecting position f; seventh connecting position g; side seal strip 3; plate body 81; locking hook 82; root connecting portion 83; hooking portion 84; door corner portion 7; top plate 71; side plate 72; receiving space 70; flipping beam 9; guiding block 90; guiding rail 91. Detailed implementation mode

[0132] Next, the present invention will be specifically described through exemplary implementation modes. However, it should be understood that, without further elaboration, the elements, structures, and features in one implementation mode can also be beneficially combined into other implementation modes.

[0133] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0134] The terms "first", "second", "third", "fourth", "fifth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth", "fifth" may explicitly or implicitly include one or more of such features.

[0135] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0136] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. In the drawings, the side facing the user when the refrigerator is in use is defined as the front side, and the opposite side is defined as the rear side.

[0137] Embodiment 1

[0138] Refer to Figures 1-5 , the refrigerator includes a box body 10 having a storage chamber, a door body 30 connected to the box body 10 to open and close the storage chamber, and a refrigeration device for supplying cold air to the storage chamber. The box body 10 includes an inner container defining the storage chamber, an outer shell connected to the outside of the inner container to form the appearance of the refrigerator, and a heat insulation layer provided between the inner container and the outer shell to insulate the storage chamber.

[0139] The box body 10 defines a plurality of storage chambers. In this embodiment, the plurality of storage chambers include a refrigerating chamber and a freezing chamber located below the refrigerating chamber; it should be noted that the arrangement of the plurality of storage chambers of the refrigerator is not limited to the above examples.

[0140] A placing and taking opening is formed at the front end of the storage chamber for placing food into or taking food out of the storage chamber; a rotatable door body 30 is provided on the box body 10 to open or close the placing and taking opening of the storage chamber. 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 placing and taking opening.

[0141] Specifically, in this embodiment, the box body 10 includes a first body side wall and a second body side wall arranged oppositely (i.e., the left side wall and the right side wall of the box body 10); wherein, the door body 30 has a front door wall 31 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 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 horizontal 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 horizontal direction; it is also equivalent to the normal direction of the first body side wall being the horizontal direction.

[0142] Among them, the front wall 31 and the side wall 32 of the door body 30 intersect to form a first side edge W, and the side wall 32 and the rear wall 33 of the door intersect to form a second side edge N. When the door body 30 is closed, the first side edge W is located on the side away from the box body 10 of the second side edge N. It should be noted that the intersection line of the front wall 31 and the side wall 32 is the first side edge W in theory (similarly, the second side edge N in theory is the intersection line of the side wall 32 and the rear wall 33); in actual production and processing settings, the intersection of the front wall 31 and the side wall 32 is set with a rounded transition, so a curved surface is formed at the intersection of the front wall 31 and the side wall 32; on the curved surface at the intersection of the front wall 31 and the side wall 32, any straight line extending along the height direction of the door body 30 can represent the first side edge W (similarly applicable to the second side edge N). In this application, for the convenience of description, the first side edge W in theory and the second side edge N in theory are used for description to illustrate the movement trend of the first side edge W or the second side edge N during the opening process of the door body 30. In addition, a plane passing through the centroid of the door body 30 and parallel to the front wall 31 is denoted as the centroid plane P; during the opening process of the door body 30, the centroid plane P moves with the door body 30, and the centroid plane P remains stationary relative to the door body. In this embodiment, the centroid plane P determined with the geometric center of the door body 30 as the centroid is used for description.

[0143] A door seal 5 is provided on the rear wall of the door body 30; when the door body 30 is closed, the door seal 5 is in close contact with the front end surface of the box body surrounding the access opening to effectively seal the connection between the door body 30 and the box body 10, so as to ensure that the door body 30 seals the access opening and prevent cold air from leaking. Optionally, the door seal 5 is annular; the door seal 5 includes a side seal close to the side wall 32 of the door, and the edge of the door seal 5 (side seal) close to the side wall 32 and away from the front wall 31 is denoted as the side seal edge H.

[0144] The hinge assembly includes a first hinge member and a second hinge member, and the first hinge member and the second hinge member cooperate with each other and can rotate relative to each other. The first hinge member is provided on the box body 10 and close to the first body side wall, and the second hinge member is provided at the end of the door body 30 close to the first hinge member. The first hinge member and the second hinge member cooperate with each other to allow the box body 10 and the door body 30 to rotate relative to each other. Among them, the second hinge member is close to the side wall 32 of the door body 30; for example, when the first hinge member is located on the right side of the box body 10, the right side surface of the door body 30 is the side wall 32 when the door body 30 is closed; when the first hinge member is located on the left side of the box body 10, the left side wall of the door body 30 is the side wall 32 when the door body 30 is closed.

[0145] Refer to Figures 3-5, the first hinge member includes: a hinge plate 40 and a plurality of hinge shafts formed on the hinge plate 40. Specifically, the hinge plate 40 includes a connecting portion 401 connected to the cabinet 10 and an extending portion 402 extending forward from the connecting portion 401 and having a horizontal plate shape. The connecting portion 401 can be fastened to the top wall of the cabinet 10 by fasteners such as screws, pins, and bolts. Specifically, for the hinge at the upper end of the door body 30, the connecting portion 401 is connected to the top wall of the cabinet 10. For the hinge at the lower end of the door body 30, the connecting portion 401 is connected to the front end face of the cabinet 10. Among them, a first hinge shaft 41, a second hinge shaft 42, and a third hinge shaft 43 are formed on the extending portion 402 of the first hinge member; among them, the second hinge shaft 42 is located on one side of the first hinge shaft 41 close to the first body side wall, and the third hinge shaft 43 is located on one side of the first hinge shaft 41 away from the first body side wall.

[0146] The second hinge member includes: a guiding portion 50 and a guiding portion 60 located at the end of the door body 30 close to the first hinge member; among them, the first hinge shaft 41 is adapted to the guiding portion 50, and both the second hinge shaft 42 and the third hinge shaft 43 are adapted to the guiding portion 60; during the process of the door body 30 rotating to open or close, the first hinge shaft 41 moves relative to the guiding portion 50, and both the second hinge shaft 42 and the third hinge shaft 43 move relative to the guiding portion 60.

[0147] In this embodiment, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are formed on the extending portion 401 connected to the cabinet 10 through the connecting portion 401 to form a defining shaft for guiding the movement of the door body 30. Specifically, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 extend in the vertical direction (the height direction of the cabinet 10) to be adapted to the guiding portion 50 or the guiding portion 60 provided on the door body 30.

[0148] In this embodiment, taking the example that the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are provided on the extending portions 402 at the upper and lower ends of the door body 30, and the guiding portions 50 and the guiding portions 60 are provided at both the upper and lower ends of the door body 30 for description. It should be noted that the setting of this embodiment is not limited 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 cabinet 10.

[0149] In this embodiment, as Figure 3 shown, the plane where the side surface (the first body side wall) of the cabinet 10 close to the hinge plate 40 is defined as a reference plane M0, and the side of the reference plane M0 away from the storage chamber interior is denoted as the outer side; in contrast, the side of the reference plane M0 close to the storage chamber interior is denoted as the inner side. As Figure 5As shown in the figure, in some embodiments of the present application, in the projection on the plane of the top wall of the box body 10, the straight line where the central axis of the first hinge shaft 41 and the central axis of the second hinge shaft 42 are located is perpendicular to the side wall of the first body; that is, in the projection on the plane of the top wall of the box body 10, the straight line where the central axis of the first hinge shaft 41 and the central axis of the second hinge shaft 42 are located is parallel to the plane where the access opening is located; so that the positioning of the hinge shaft can be detected, ensuring the machining accuracy, and thus ensuring the assembly accuracy, and increasing the smoothness of the rotation and opening of the door body 30.

[0150] In this embodiment, the trajectory line of the relative movement of the guiding portion 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 portion 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 annular; that is, during the opening process of the door body 30, the guiding portion 50 guides the movement of the first hinge shaft 41, so that the central axis of the first hinge shaft 41 moves along the guiding trajectory line S in a straight line. In some embodiments of the present application, when the door body 30 is closed, the guiding trajectory line S is parallel to the plane where the access opening is located. As a settable manner, the guiding trajectory line S is a straight line parallel to the front wall 31 of the door; during the opening process of the door body 30, the first hinge shaft 41 moves relative to the door body 30 in a direction parallel to the front wall of the door; that is, the first hinge 42 moves relative to the door body 30 in a direction perpendicular to the side wall 32 of the door, effectively controlling the displacement of the door body 30 in the direction perpendicular to the side wall 32 of the door.

[0151] Among them, the guiding trajectory line K surrounds the guiding trajectory line S. In the projection on the plane of the top wall of the box body 10, the guiding trajectory line K surrounds the first hinge shaft 41, the second hinge shaft 42 and the third hinge shaft 43.

[0152] As a settable manner, the guiding portion 50 is set as a guiding groove, the guiding portion 60 is set as a guiding groove, and the central trajectory line of the guiding groove is denoted as the guiding trajectory line S. The guiding groove is an annular closed groove; the groove wall of the guiding groove is annular to define the closed annular guiding trajectory line K. That is, in the projection on the plane of the top wall of the box body 10, the groove wall of the guiding groove surrounds the guiding groove, the first hinge shaft 41, the second hinge shaft 42 and the third hinge shaft 43. During the opening process of the door body 30, the first hinge shaft 41 moves linearly relative to the guiding groove, and the second hinge shaft 42 and the third hinge shaft 43 both move relative to the guiding groove, so that the door body 30 has a certain displacement in the horizontal direction during the opening process.

[0153] In the present invention, the guiding portion 60 defines a closed annular guiding track line. Optionally, the guiding groove is an annular closed groove. The above-mentioned annular guiding portion 60 has high strength, good machinability, and good machining precision. In addition, the annular setting form makes the guiding portion 60 have excellent detectability to ensure precision. Moreover, the annular guiding portion 60 has good resistance to deformation, effectively ensuring its precision. In combination with the linear guiding portion 50, the first hinge shaft 41 fixed to the box body 10 cooperates with the linear guiding portion 50, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guiding portion 60, which can accurately control the movement of the door body 30, causing the door body 33 to displace a certain distance in the transverse direction to meet the requirements of various applications; and increases the stability of the movement of the door body 30, improving the user experience.

[0154] In some embodiments of the present application, the guiding groove is a straight groove, and the extending direction of the guiding groove is parallel to the door side wall 32 to increase the detectability of the guiding portion 50, thereby ensuring the machining precision. In this embodiment, the guiding groove being a straight groove parallel to the door side wall 32 is taken as an example for illustration.

[0155] See Figures 6-7 , in some embodiments of the present application, the end of the door body 30 close to the door side wall 32 is recessed toward the inner cavity side of the door body 30 to form a mounting table, and the second hinge member (the guiding portion 50 and the guiding portion 60) is arranged on the mounting table.

[0156] As an optional way, the extending portion 402 of the hinge plate 40 includes a first extending plate 4021 and a second extending plate 4022; wherein, one end of the first extending plate 4021 is connected to the connecting portion 401, and the other end is connected to the second extending plate 4022. The first extending plate 4021 has a first side close to the first body side wall. Along the direction from the connecting portion 401 to the second extending plate 4022, the first side extends obliquely away from the first body side wall. The second extending plate 4022 has a second side close to the access opening side. The first side and the second side are connected to define an avoidance opening on the side of the extending portion 402 close to the first body side wall. The open 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 extending portion 402 when opened, enabling the door body 30 to be opened to a larger angle.

[0157] As another configurable way, the door body 30 has a door corner 7 near the door side wall 32; the door corner 7 has a top plate 71 and a side plate 72 that forms a part of the door side wall 32. The top plate 71, the side plate 72 and the mounting table together define a receiving space 70. When the door body 30 is closed, at least a part of the extending portion 402 of the first hinge member is received in the receiving space 70 to cooperate with the second hinge member. When the door body 30 is closed, the above-mentioned door corner 7 shields the second hinge member and the extending portion 402 of the first hinge member, reducing dust from falling in and effectively ensuring the smoothness of the cooperation of the hinge assembly. With the above-mentioned avoidance opening provided, when the door body 30 is opened, interference between the door body 30 (the side plate 72 of the door corner 7 or the area of the front door wall 31 near the first side edge W) and the extending portion 402 is avoided, effectively ensuring that the door body 30 can be opened to a larger angle.

[0158] In some embodiments of the present application, when the door body 30 is closed, the guiding portion 50 is close to the front door wall 31 relative to the plane where the access opening is located. The first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are provided at one end of the extending portion 402 away from the access opening. Optionally, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are provided on the second extension plate 4022 so that there is enough space on the extending portion 402 to provide an avoidance opening to avoid interference when the door body 30 is opened, thereby ensuring the opening angle of the door body 30. On the other hand, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are provided on the second extension plate 4022 away from the access opening, applying a force to the position of the door body 30 close to the front door wall 31 when in the closed state, 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.

[0159] As a configurable way, when the door body 30 is closed, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are located on the side of the centroid plane P close to the front door wall 31.

[0160] As a configurable way, the distance between the second hinge shaft 42 and the first hinge shaft 41 is less than the distance between the first hinge shaft 41 and the third hinge shaft 43. In a configurable way, the third hinge shaft 43 is located on the side of the first hinge shaft 41 and the second hinge shaft 42 away from the access opening.

[0161] In some embodiments of the present application, such as Figure 3As shown, the guiding track line K includes a first guiding segment K1, a second guiding segment K2, a third guiding segment K3, a fourth guiding segment K4, a fifth guiding segment K5, and a sixth guiding segment K6 that are connected end to end in sequence; that is, the guiding track line K is in a closed loop shape, and the guiding groove is an annular closed groove to effectively limit the movement of the second hinge shaft 42 and the third hinge shaft 43, while preventing the second hinge shaft 42 and the third hinge shaft 43 from disengaging from the guiding groove. Among them, the connection point of the sixth guiding segment K6 and the first guiding segment K1 is denoted as the first connection position a, the connection point of the first guiding segment K1 and the second guiding segment K2 is denoted as the second connection position b, the connection point of the second guiding segment K2 and the third guiding segment K3 is denoted as the third connection position c, the connection point of the third guiding segment K3 and the fourth guiding segment K4 is denoted as the fourth connection position d, the connection point of the fourth guiding segment K4 and the fifth guiding segment K5 is denoted as the fifth connection position e, and the connection point of the fifth guiding segment K5 and the sixth guiding segment K6 is denoted as the sixth connection position f.

[0162] As an adjustable method, when the door body 30 is closed, the second hinge shaft 42 cooperates with the first connection position a of the guiding groove. That is, when the door body 30 is closed, the second hinge shaft 42 is located at the first connection position a.

[0163] Among them, the second connection position b is located on the side of the first connection position a close to the door side wall 32 and the door front wall 31;

[0164] The third connection position c is located on the side of the second connection position b close to the door front wall 31 and away from the door side wall 32; in this embodiment, the third connection position c is located on the side of the first connection position a away from the door side wall 32.

[0165] The fourth connection position d is located on the side of the third connection position c close to the door rear wall 33 and away from the door side wall 32, and the fourth connection position d is located on the side of the second connection position b close to the door rear wall 33. In this embodiment, the fourth connection position d is located on the side of the first connection position a close to the door front wall 31.

[0166] 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.

[0167] The sixth connection position f is located on the side of the fifth connection position e close to the door front wall 31 and the door side wall 32. In this embodiment, the sixth connection position f is located on the side of the first connection position a close to the door rear wall 33 and away from the door side wall 33. As an adjustable method, the sixth connection position f is located on the side of the third connection position c close to the door side wall 32.

[0168] That is, in the projection on the plane where the front door wall 31 is located, the second connection position b, the first connection position a, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are successively away from the door side wall 32.

[0169] In the projection on the plane where the door side wall 32 is located, the third connection position c, the second connection position b, the fourth connection position d, the first connection position a, the sixth connection position f, and the fifth connection position e are successively away from the front door wall 31. In this embodiment, in the projection on the plane where the door side wall 32 is located, the fourth connection position d is closer to the second connection position b than the first connection position a.

[0170] As a settable manner, in the projection on the plane where the door side wall 32 is located, the second connection position b and the fourth connection position d are adjacent to each other. Optionally, in the projection on the plane where the door side wall 32 is located, the distance between the second connection position b and the fourth connection position d is less than 3 mm; the distance between the first connection position a and the fourth connection position d is less than 10 mm.

[0171] As a settable manner, in the projection on the plane where the door side wall 32 is located, the projection points of the fifth connection position e, the sixth connection position f, the first connection position a, and the third connection position c are successively denoted as e`, f`, a`, and c`. Among them, the distance between the fifth connection position e and the sixth connection position f is denoted as e`f`, the distance between the fifth connection position e and the first connection position a is denoted as e`a`, and the distance between the first connection position a and the third connection position c is denoted as a`c`; among them, e`a`: a`c` belongs to any value of 3 to 4; e`f`: e`a` belongs to any value of 0.5 to 0.6.

[0172] In this embodiment, the guide groove surrounds its guiding centroid O, and the first guiding section K1, the second guiding section K2, the third guiding section K3, the fourth guiding section K4, and the fifth guiding section K5 all protrude in a direction away from the guiding centroid O; the sixth guiding section K6 protrudes in a direction close to the guiding centroid O, so that the guiding track line K smoothly transitions from the fifth connection position e to the first connection position a.

[0173] In this embodiment, along the direction of approaching the second connection position b from the first connection position a, the first guiding section K1 extends towards the door sidewall 32 and the front door wall 31; along the direction of approaching the third connection position c from the second connection position b, the second guiding section K2 extends away from the door sidewall 32 and towards the front door wall 31; along the direction of approaching the fourth connection position d from the third connection position c, the third guiding section K3 extends away from the door sidewall 32 and the front door wall 31; along the direction of approaching the fifth connection position e from the fourth connection position d, the fourth guiding section K4 extends towards the door sidewall 32 and away from the front door wall 31; along the direction of approaching the sixth connection position f from the fifth connection position e, the fifth guiding section K5 extends towards the door sidewall 32 and the front door wall 31; along the direction of approaching the first connection position a from the sixth connection position f, the sixth guiding section K6 extends towards the door sidewall 32 and the front door wall 31, and the sixth guiding section K6 bulges towards the guiding centroid O.

[0174] That is, in this embodiment, the second connection position b is the point on the guiding track line K closest to the door sidewall 32, and the fourth connection position d is the point on the guiding track line K farthest from the door sidewall 32; the third connection position c is the point on the guiding track line K closest to the front door wall 31, and the fifth connection position e is the point on the guiding track line K closest to the rear door wall 33.

[0175] As an implementable manner, as Figure 8 shown, when the door body 30 is closed, the second hinge shaft 42 is in contact and cooperation with the first connection position a of the guiding groove; the third hinge shaft 43 is in contact and cooperation with the fourth connection position d of the guiding groove. Correspondingly, at this time, the first hinge shaft 41 is located on the guiding track line S. As a settable manner, when the door body 30 is closed, the second hinge shaft 42 is in interference fit with one end of the sixth guiding section K6 of the guiding groove close to the front door wall 31; the third hinge shaft 43 is in interference fit with one end of the third guiding section K3 of the guiding groove away from the door sidewall 32.

[0176] In this embodiment, along the direction from the first connection position a to the sixth connection position f, the sixth guiding section K6 extends away from the door sidewall 32 and the front door wall 31 and protrudes towards the guiding centroid O; while along the direction from the fourth connection position d to the third connection position c, the third guiding section K3 extends towards the door sidewall 32 and the front door wall 31. That is, along the direction from the first connection position a to the sixth connection position f, the distance between the sixth guiding section K6 and the door sidewall 32 increases; along the direction from the fourth connection position d to the third connection position c, the distance between the third guiding section K3 and the door sidewall 32 decreases. The above settings can prevent the third hinge shaft 41 from moving relative to the guiding groove along the third guiding section K3 in the direction from the fourth connection position d to the third connection position c. When the door body 30 continues to move in the closing direction after being closed to an opening angle of 0°, the above settings of the guiding track line K can apply resistance to the movement of the second hinge shaft 42 and the third hinge shaft 43 relative to the guiding groove, so that the door body 30 can stay stably in the closed state and can avoid the door body 30 over-closing due to excessive force and then rebounding and opening.

[0177] Assume that the door body 30 continues to move in the closing direction from the closed state. The second hinge shaft 42 has a tendency to move towards the sixth connection position f relative to the sixth guiding section K6, and the third hinge shaft 43 has a tendency to move towards the third connection position c relative to the third guiding section K3. Since in this embodiment, along the direction from the first connection position a to the sixth connection position f, the distance between the sixth guiding section K6 and the door sidewall 32 increases. The extending tendency of the sixth guiding section K6 has the tendency that when keeping the first hinge shaft 41 moving along the guiding groove and the second hinge shaft 42 cooperating with the sixth guiding section K6, the second hinge shaft 42 has a tendency to move away from the door sidewall 32. Similarly, both the first hinge shaft 41 and the third hinge shaft 43 have a tendency to move away from the door sidewall 32. And since along the direction from the fourth connection position d to the third connection position c, the distance between the third guiding section K3 and the door sidewall 32 decreases, it applies resistance to the movement of the third hinge shaft 43 to prevent the third hinge shaft 43 from moving. Similarly, assuming an analysis is made when keeping the first hinge shaft 41 moving along the guiding groove and the third hinge shaft 43 cooperating with the third guiding section K3, it can be known that the sixth guiding section K6 applies resistance to the movement of the second hinge shaft 42 to prevent the second hinge shaft 42 from moving. To sum up, the above settings of the sixth guiding section K6 and the third guiding section K3 can limit the tendency of the first hinge shaft 41, the second hinge shaft 42 and the third hinge shaft 43 to continue moving in the closing direction relative to the guiding part 60, so that the door body 30 can stay stably in the closed state and can avoid the door body 30 over-closing due to excessive force and then rebounding and opening.

[0178] As a configurable manner, when the door body 30 is closed, the first connection position a is located on the side of the central axis of the second hinge shaft 42 close to the door side wall 32 and away from the front door wall 31. That is, when the door body 30 is closed, the area on the second hinge shaft 42 close to the door side wall 32 and away from the front door wall 31 cooperates with the first connection position a. Under the action of the sixth guiding section K6, while keeping the first hinge shaft 41 moving along the guiding groove and the second hinge shaft 42 cooperating with the sixth guiding section K6, the second hinge shaft 42 has a tendency to move in a direction away from the door side wall 32.

[0179] In some embodiments of the present application, the guiding track line S has a starting guiding position I0, a first guiding position I1, a second guiding position I2, a third guiding position I3, a fourth guiding position I4, a fifth guiding position I5, a sixth guiding position I6, a seventh guiding position I7, an eighth guiding position I8, a ninth guiding position I9, a tenth guiding position I 10 、an eleventh guiding position I 11 。

[0180] In some embodiments of the present application, the fourth guiding position I4 is the end point of the guiding track line S close to the door side wall 32, and the eleventh guiding position I 11 is the end point of the guiding track line S away from the door side wall 32; wherein, the starting guiding position I0 is located between the fourth guiding position I4 and the eleventh guiding position I 11 , and the starting guiding position I0, the first guiding position I1, the second guiding position I2, the third guiding position I3, and the fourth guiding position I4 are successively close to the door side wall 32. The fourth guiding position I4, the fifth guiding position I5, the sixth guiding position I6, the seventh guiding position I7, the eighth guiding position I8, the ninth guiding position I9, the tenth guiding position I 10 、the eleventh guiding position I 11 are successively away from the door side wall 32.

[0181] As a configurable manner, the sixth guiding position I6, the starting guiding position I0, the first guiding position I1, the fifth guiding position I5, the second guiding position I2, the third guiding position I3, and the fourth guiding position I4 are successively close to the door side wall 32.

[0182] 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.

[0183] During the opening process of the door body 30, the first hinge shaft 41 moves relative to the guiding groove, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guiding groove; the first central axis I moves relative to the guiding groove along the guiding track line S, and the second central axis E and the third central axis F move relative to the guiding groove.

[0184] 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.

[0185] As a configurable way, refer to Figure 3 , the axis triangle IEF is an obtuse triangle; ∠FIE belongs to any value within 172° to 178°; ∠IEF belongs to any value within 3.5° to 4°. That is, the axis triangle IEF is an obtuse triangle with one angle close to 180°. Among them, the distance between the first hinge axis 41 and the second hinge axis 42 is less than the distance between the first hinge axis 41 and the third hinge axis 43, and the distance between the second hinge axis 42 and the third hinge axis 43 is the largest. The above setting of the relative positions of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 to form an obtuse triangle enables both the second hinge axis 42 and the third hinge axis 43 to cooperate with the guide groove, and the first hinge axis 41 to cooperate with the guide groove, increasing the assembly dimension of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 for the door body 30 (guide groove). The axis triangle IEF formed by the first hinge member is in surface fit with the guide groove surface of the second hinge member; that is, the fitting dimension of the surface fit between the first hinge member and the second hinge member effectively improves the fitting stability of the first hinge member and the second hinge member and increases the stability of opening the door body 30. In addition, the second hinge axis 42 and the third hinge axis 43 are respectively located on opposite sides of the first hinge axis 41 and cooperate with the guide groove, increasing the stability.

[0186] As a configurable way, 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; that is, the straight line where the second hinge axis 42 and the third hinge axis 43 are located is on the side of the first hinge axis 41 away from the access opening. The above setting enables the second hinge axis 42 and the third hinge axis 43 with the largest distance to cooperate with the guide groove on the side away from the access opening to support the door body 30, further increasing the support stability of the three hinge axes for the door body 30, and at the same time reducing the dimension of the axis triangle IEF in the direction perpendicular to the access opening, which can meet the requirement of setting the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 on the second extension plate 4022 to achieve the avoidance between the door corner 7 and the hinge plate 40.

[0187] In some embodiments of the present application, 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. Additionally, optionally, the third central axis F is located on the side of the straight line IE where the first central axis I and the second central axis E are located away from the access opening.

[0188] 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.

[0189] 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 first hinge shaft 41 moves relative to the guiding slot, and the second hinge shaft 42 or the third hinge shaft 43 moves relative to the guiding groove to illustrate the specific process of opening the door body 30.

[0190] As Figures 8-33 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.

[0191] 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 track line S; the movement of the second hinge shaft 42 or the third hinge shaft 43 relative to the guiding groove is equivalent to the movement of the second hinge shaft 42 or the third hinge shaft 43 relative to the guiding track line K.

[0192] In this embodiment, the maximum opening angle G max >90° is taken as an example for illustration. Among them, in the following description, G max =G 11 is taken as an example for illustration. It should be noted that the maximum angle G max can be other angles, and it is not limited by G max =G 11 .

[0193] When the door body 30 is opened from the closed state to the maximum angle G max (=G 11 ), during the process that the door body 30 rotates and opens to a specific angle, the relative positions of the first hinge shaft 41 relative to the guiding slot, and the second hinge shaft 421 and the third hinge shaft 43 relative to the guiding groove are as follows:

[0194] Among them, Indicates the opening angle of the door body 30, and the opening angle when the door body 30 is in the closed state

[0195] As Figure 8 shown When, the door body 30 is in the closed state; the first central axis I is located at the starting guiding position I0 of the guiding track line S. That is, when the door body 30 is closed, the first hinge axis 41 is located in the area of the guiding groove close to the door side wall 32. The second hinge axis 42 cooperates with the first connection position a of the guiding track line K, and the third hinge axis 43 cooperates with the fourth connection position d of the guiding track line K. At this time ( When), 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

[0196] As Figure 9 shown When, the process of the door body 30 rotating from the closed state to G2; during the above opening process, the first central axis I moves along the guiding track line S in the direction close to the door side wall 32; the second hinge axis 42 cooperates with the first guiding section K1, and the second hinge axis 42 moves relative to the first guiding section K1 in the direction approaching from the first connection position a to the second connection position b; the third hinge axis 43 cooperates with the fourth guiding section K4, and the third hinge axis 43 moves relative to the fourth guiding section K4 in the direction approaching from the fourth connection position d to the fifth connection position e. That is, during the process of the door body 30 rotating from the closed state to G2, while the first hinge axis 41 moves relative to the guiding groove in the direction close to the door side wall 32, the second hinge axis 42 moves relative to the guiding groove in the direction close to the door side wall 32 and the front wall 31 of the door, and the third hinge axis 43 moves relative to the guiding groove in the direction close to the door side wall 32 and away from the front wall 31 of the door

[0197] Above, the opening angle of the door body 30 When, the movement trends in this opening angle interval are consistent; the only difference is that: for different opening angles, the position of the first hinge axis 41 relative to the guiding track line S is different, the position of the second hinge axis 42 relative to the first guiding section K1 of the guiding track line K is different, and the position of the third hinge axis 43 relative to the fourth guiding section K4 of the guiding track line K is different. Thus, when the opening angle is Inside, selecting one of the opening angles can represent the relative positions of the first hinge axis 41 relative to the guiding groove, the second hinge axis 42, and the third hinge axis 43 relative to the guiding groove when the door body 30 is opened to the corresponding interval. Specifically, asFigure 9 and Figure 23 as shown in represent the positions within the opening angle range for comparison with other states when the door body 30 is opened.

[0198] As Figure 9 and Figure 23 shown in, when the door body 30 is opened to G1, the first central axis I is located at the first guiding position I1 of the guiding track line S. Among them, the first guiding position I1 is on the side closer to the door side wall 32 than the initial guiding position I0; the first guiding section K1 of the guiding track line K cooperates with the second hinge axis 42, and the fourth guiding section K4 cooperates with the third hinge axis 43. At this time ( at this time), the second central axis E is at E1 relative to the door body 30, and the third central axis F is at F1 relative to the door body 30; that is, the axis triangle IEF is at the first triangle position I1E1F1 relative to the door body 30. From the process of the door body 30 being opened from the closed state to G2, it can be seen that there exists when at this time, the centroid plane P is on the side of the first triangle position I1E1F1 away from the front door wall 31; that is, the centroid plane P is on the side of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 away from the front door wall 31. That is, when the angle of the door body 30 is G1, the centroid plane P is not between the hinge axes. When at this time, the centroid plane P passes through the first triangle position I1E1F1; that is, the centroid plane P is between the first hinge axis 41 and the third hinge axis 43, and is on the side of the first hinge axis 41 away from the second hinge axis 42 away from the front door wall 31. That is, when the opening angle of the door body 30 is not greater than G`1, the centroid plane P is not between the hinge axes; while when the opening angle of the door body 30 is greater than G`1, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0199] As Figure 10 and Figure 24 shown in at this time, the door body 30 rotates and opens to G2; the first central axis I is located at the second guiding position I2 of the guiding track line S; among them, the second guiding position I2 is on the side closer to the door side wall 32 than the first guiding position I1. The second hinge axis 42 cooperates with the second connection position b of the guiding track line K; that is, the second hinge 42 moves to the position with the minimum distance from the door side wall 32. At the same time, the third hinge axis 43 cooperates with the fourth guiding section K4. At this time ( When the opening angle is G2, 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. The centroid plane P passes through the second triangle position I2E2F2. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front door wall 31. That is, when the opening angle of the door body 30 is G2, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0200] As Figure 11 shown, When the opening angle is G2, the process of the door body 30 rotating from G2 to G4 to open; during the above opening process, the first central axis I moves along the guiding track line S in the direction close to the door side wall 32. The second hinge axis 42 cooperates with the second guiding section K2, and the second hinge axis 42 moves relative to the second guiding section K2 in the direction from the second connection position b to the third connection position c; the third hinge axis 43 cooperates with the fourth guiding section K4, and the third hinge axis 43 moves relative to the fourth guiding section K4 in the direction from the fourth connection position d to the fifth connection position e. That is, during the process of the door body 30 rotating from G2 to G4 to open, while the first hinge axis 41 moves relative to the guiding groove in the direction close to the door side wall 32, the second hinge axis 42 moves relative to the guiding groove in the direction away from the door side wall 32 and close to the front door wall 31, and the third hinge axis 43 moves relative to the guiding groove in the direction continuing to be close to the door side wall 32 and away from the front door wall 31.

[0201] Above, when the opening angle of the door body 30 is within a certain range, the movement trends in this opening angle range are consistent; the only difference is that: at different opening angles, the position of the first hinge axis 41 relative to the guiding track line S is different, the position of the second hinge axis 42 relative to the second guiding section K2 of the guiding track line K is different, and the position of the third hinge axis 43 relative to the fourth guiding section K4 of the guiding track line K is different. Thus, when the opening angle is within a certain range, selecting one of the opening angles can represent the relative positions of the first hinge axis 41 relative to the guiding groove, the second hinge axis 42, and the third hinge axis 43 relative to the guiding groove when the door body 30 is opened to the corresponding range. Specifically, as Figure 11 and Figure 25 shown, using to represent the position within this opening angle range for comparison with other states when the door body 30 is opened to other states.

[0202] As Figure 11 and Figure 25As shown, when the door body 30 is opened to G3, the first central axis I is located at the third guiding position I3 of the guiding track line S; wherein, the third guiding position I3 is on the side of the second guiding position I2 closer to the door side wall 32; the second guiding section K2 of the guiding track line K is matched with the second hinge axis 42, and the fourth guiding section K4 is matched with the third hinge axis 43. At this time ( when), the second central axis E is at E3 relative to the door body 30, and the third central axis F is at F3 relative to the door body 30; that is, the axis triangle IEF is at the third triangle position I3E3F3 relative to the door body 30. During the process of the above-mentioned door body 30 rotating and opening from G2 to G4, the centroid plane P always passes through the third triangle position I3E3F3. Specifically, the centroid plane P is between the first hinge axis 41 and the third hinge axis 43, and is on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front door wall 31. That is, during the process of the door body 30 rotating and opening from G2 to G4, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0203] As Figure 12 , Figure 26 shown, when, the door body 30 rotates and opens to G4. The first central axis I is located at the fourth guiding position I4 of the guiding track line S; wherein, the fourth guiding position I4 is on the side of the third guiding position I3 closer to the door side wall 32, and is the end point position of the guiding track line S closer to the door side wall 32; that is, the first hinge axis 41 moves to the end point of the guiding groove closer to the door side wall 32. The second hinge axis 42 is matched with the second guiding section K2 of the guiding track line K, and the third hinge axis 43 is matched with the fourth guiding section K4. At this time ( when), the second central axis E is at E4 relative to the door body 30, and the third central axis F is at F4 relative to the door body 30; that is, the axis triangle IEF is at the fourth triangle position I4E4F4 relative to the door body 30. The centroid plane P passes through the fourth triangle position I4E4F4. Specifically, the centroid plane P is between the first hinge axis 41 and the third hinge axis 43, and is on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front door wall 31. That is, when the opening angle of the door body 30 is G4, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0204] As Figure 13 shown, When the door body 30 rotates from G4 to G6; during the above opening process, the first central axis I moves along the guiding track line S away from the door side wall 32; the second hinge axis 42 cooperates with the second guiding section K2, and the second hinge axis 42 moves relative to the second guiding section K2 in the direction approaching from the second connection position b to the third connection position c; the third hinge axis 43 cooperates with the fourth guiding section K4, and the third hinge axis 43 moves relative to the fourth guiding section K4 in the direction approaching from the fourth connection position d to the fifth connection position e. That is, during the process of the door body 30 rotating from G4 to G6, while the first hinge axis 41 moves relative to the guiding groove away from the door side wall 32, the second hinge axis 42 moves relative to the guiding groove away from the door side wall 32 and towards the front door wall 31, and the third hinge axis 43 moves relative to the guiding groove continuously towards the door side wall 32 and away from the front door wall 31.

[0205] Above, the opening angle of the door body 30 When, the movement trends in this opening angle range are consistent; the only difference is that: for different opening angles, the position of the first hinge axis 41 relative to the guiding track line S is different, the position of the second hinge axis 42 relative to the second guiding section K2 of the guiding track line K is different, and the position of the third hinge axis 43 relative to the fourth guiding section K4 of the guiding track line K is different. Thus, within the opening angle When, selecting one of the opening angles can represent the relative positions of the first hinge axis 41 relative to the guiding groove, the second hinge axis 42, and the third hinge axis 43 relative to the guiding groove when the door body 30 is opened to the corresponding range. Specifically, as Figure 13 And Figure 27 Shown, taking To represent the position within this opening angle range for comparison with other states when the door body 30 is opened.

[0206] Such as Figure 13 And Figure 27 Shown, when the door body 30 is opened to G5, the first central axis I is located at the fifth guiding position I5 of the guiding track line S; among them, the fifth guiding position I5 is on the side of the fourth guiding position I4 away from the door side wall 32; the second guiding section K2 of the guiding track line K cooperates with the second hinge axis 42, and the fourth guiding section K4 cooperates with the third hinge axis 43. At this time ( When it is at a certain time, the second central axis E is at E5 relative to the door body 30, and the third central axis F is at F5 relative to the door body 30; that is, the axis triangle IEF is at the fifth triangular position I5E5F5 relative to the door body 30. During the process of the above-mentioned door body 30 rotating from G4 to G6, the centroid plane P always passes through the fifth triangular position I5E5F5. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front door wall 31. That is, during the process of the door body 30 rotating from G4 to G6, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0207] As Figure 14 , Figure 28 shown, When it is at a certain time, the door body 30 rotates and opens to G6; the first central axis I is at the sixth guiding position I6 of the guiding track line S; among them, the sixth guiding position I6 is on the side of the fifth guiding position I5 away from the door side wall 32. The second hinge axis 42 cooperates with the third connection position c of the guiding track line K, and the third hinge axis 43 cooperates with the fourth guiding section K4. As a settable method, at this time, the third hinge axis 43 cooperates with the fifth connection position e. At this time ( When it is at a certain time), the second central axis E is at E6 relative to the door body 30, and the third central axis F is at F6 relative to the door body 30; that is, the axis triangle IEF is at the sixth triangular position I6E6F6 relative to the door body 30. The centroid plane P passes through the sixth triangular position I6E6F6. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front door wall 31. That is, when the opening angle of the door body 30 is G6, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0208] In some embodiments of the present application, That is, when the door body 30 is opened to 90°, the second hinge axis 42 is in contact and cooperation with the third connection position c of the guiding track line K. It can be set that when the door body 30 is closed, IE is parallel to the front door wall 31. That is, when the door body 30 is closed, the straight line I0E0 where the first central axis I and the second central axis E are located is parallel to the front door wall 31. Correspondingly, when the door body 30 is opened to 90°, the straight line I6E6 where the first central axis I and the second central axis E are located is perpendicular to the front door wall 31.

[0209] In this embodiment, along the direction approaching from the second connection position b to the third connection position c, the second guiding section K2 extends in the direction away from the door side wall 32 and approaching the door front wall 31; while along the direction approaching from the third connection position c to the fourth connection position d, the third guiding section K3 extends in the direction away from the door side wall 32 and the door front wall 31; that is, along the direction approaching from the second connection position b to the fourth connection position d, the distance between the guiding track line K and the door front wall 31 first decreases and then increases, and the distance between the guiding track line K and the door front wall 31 is the smallest at the third connection position c. At this time, the door body 30 is opened to 90°, the straight line where the first central axis I and the second central axis E are located is perpendicular to the door front wall, the pressure of the guiding groove on the second hinge shaft 42 is perpendicular to the door front wall 31, and there is a tendency for relative movement between the second hinge shaft 42 and the guiding groove in the direction parallel to the door front wall 31, and the distance between the third guiding section K3 and the door front wall 31 gradually increases along the direction approaching from the third connection position c to the fourth connection position d. When the door body 30 continues to be opened from 90°, the extension form of the third guiding section K3 has the tendency to prevent the relative movement between the second hinge shaft 42 and the guiding groove in the direction parallel to the door front wall 31 when the door body 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.

[0210] In some embodiments of the present application, when the door body 30 is opened to 90°, the second hinge shaft 42 is in interference fit with the guiding track line K.

[0211] In some embodiments of the present application, when the door body 30 is opened to 90°, the third hinge shaft 43 is in interference fit with the fourth guiding section K4.

[0212] As Figure 15 shown, When the door body 30 rotates from G6 to G8. During the above opening process, the first central axis I moves along the guiding track line S in the direction away from the door side wall 32; the second hinge shaft 42 cooperates with the third guiding section K3, and the second hinge shaft 42 moves relative to the third guiding section K3 in the direction approaching from the third connection position c to the fourth connection position d; the third hinge shaft 43 cooperates with the fifth guiding section K5, and the third hinge shaft 43 moves relative to the fifth guiding section K5 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 G6 to G8, while the first hinge shaft 41 moves relative to the guiding groove in the direction away from the door side wall 32, the second hinge shaft 42 moves relative to the guiding groove in the direction away from the door side wall 32 and the door front wall 31, and the third hinge shaft 43 moves relative to the guiding groove in the direction approaching the door side wall 32 and the door front wall 31.

[0213] Above, the opening angle of the door body 30 When the opening angle is within a certain range, the movement trends are consistent. The only differences are as follows: at different opening angles, the position of the first hinge axis 41 relative to the guiding track line S is different, the position of the second hinge axis 42 relative to the second guiding section K2 of the guiding track line K is different, and the position of the third hinge axis 43 relative to the fifth guiding section K5 of the guiding track line K is different. Thus, within the opening angle When it is within a certain range, selecting one of the opening angles can represent the relative positions of the first hinge axis 41 relative to the guiding groove, the second hinge axis 42, and the third hinge axis 43 relative to the guiding groove when the door body 30 is opened to the corresponding range. Specifically, as Figure 15 and Figure 29 shown, taking to represent the position within this opening angle range for comparison with when the door body 30 is opened to other states.

[0214] As Figure 15 and Figure 29 shown, when the door body 30 is opened to G7, the first central axis I is located at the seventh guiding position I7 of the guiding track line S. Among them, the seventh guiding position I7 is on the side of the sixth guiding position I6 away from the door sidewall 32; the third guiding section K3 of the guiding track line K cooperates with the second hinge axis 42, and the fifth guiding section K5 cooperates with the third hinge axis 43. At this time ( when), the second central axis E is at E7 relative to the door body 30, and the third central axis F is at F7 relative to the door body 30; that is, the axis triangle IEF is at the seventh triangle position I7E7F7 relative to the door body 30. During the process of the above-mentioned door body 30 rotating from G6 to G8, the centroid plane P always passes through the seventh triangle position I7E7F7. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43 and is on the side of the first hinge axis 41 away from the second hinge axis 42 away from the front door wall 31. That is, during the process of the door body 30 rotating from G6 to G8, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0215] As Figure 16 , Figure 30 shown, when, 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; among them, the eighth guiding position I8 is on the side of the seventh guiding position I7 away from the door sidewall 32. The second hinge axis 42 cooperates with the third guiding section K3, and the third hinge axis 43 cooperates with the fifth guiding section K5. At this time ( When the opening angle is G8, the second central axis E is at E8 relative to the door body 30, and the third central axis F is at F8 relative to the door body 30; that is, the axis triangle IEF is at the eighth triangular position I8E8F8 relative to the door body 30. The centroid plane P passes through the eighth triangular position I8E8F8; specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front door wall 31. That is, when the opening angle of the door body 30 is G8, the centroid plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0216] Combined with the settings of the door body 30 opening to various angles described above, in some embodiments of the present application, during the process of the door body 30 opening from the closed state to G8, the second hinge axis 42 and the third hinge axis 43 are always in contact and cooperation with the inner wall of the guide groove. In addition, at specific opening angles (0°, 90°), the second hinge axis 42 or the third hinge axis 43 is in interference fit with the guide track groove, so that the door body 30 can be stably maintained in the corresponding state.

[0217] As Figures 17-18 shown, when the door body 30 rotates from G8 to G 11 ; during the above opening process, the first central axis I moves along the guiding track line S in a direction away from the door side wall 32; the second hinge axis 42 cooperates with the third guiding section K3, and the second hinge axis 42 moves relative to the third guiding section K3 in a direction approaching from the third connection position c to the fourth connection position d; the third hinge axis 43 cooperates with the fifth guiding section K5, and the third hinge axis 43 moves relative to the fifth guiding section K5 in a direction approaching from the fifth connection position e to the sixth connection position f. That is, during the process of the door body 30 rotating from G8 to G 11 , while the first hinge axis 41 moves relative to the guide groove in a direction away from the door side wall 32, the second hinge axis 42 moves relative to the guide groove in a direction away from the door side wall 32 and the front door wall 31, and the third hinge axis 43 moves relative to the guide groove in a direction approaching the door side wall 32 and the front door wall 31.

[0218] Above, the opening angle of the door body 30 When, the movement trend in this opening angle range remains the same; the only difference is that: at different opening angles, the position of the first hinge axis 41 relative to the guiding track line S is different, the position of the second hinge axis 42 relative to the second guiding section K2 of the guiding track line K is different, and the position of the third hinge axis 43 relative to the fifth guiding section K5 of the guiding track line K is different. Thus, the opening angle When inside, selecting one of the opening angles can represent the relative positions of the first hinge axis 41 with respect to the guiding groove, the second hinge axis 42, and the third hinge axis 43 with respect to the guiding groove when the door body 30 is opened to the corresponding interval. Specifically, as Figure 17 and Figure 31 shown, taking to represent the position within this opening angle interval for comparison with when the door body 30 is opened to other states; among them, G9 < G 10 . Since this angle range is large, two of the angles are selected for illustration to show the movement within this angle range.

[0219] As Figure 18 and Figure 32 shown, when the door body 30 is opened to G9, the first central axis I is located at the ninth guiding position I9 of the guiding track line S. Among them, the ninth guiding position I9 is on the side of the eighth guiding position I8 away from the door side wall 32; the third guiding section K3 of the guiding track line K cooperates with the second hinge axis 42, and the fifth guiding section K5 cooperates with the third hinge axis 43. At this time( when), 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.

[0220] When the door body 30 is opened to G 10 , the first central axis I is located at the tenth guiding position I 10 . Among them, the tenth guiding position I 10 is on the side of the ninth guiding position I9 away from the door side wall 32; the third guiding section K3 of the guiding track line K cooperates with the second hinge axis 42, and the fifth guiding section K5 cooperates with the third hinge axis 43. At this time( when), the second central axis E is located at E 10 relative to the door body 30, and the third central axis F is located at F 10 relative to the door body 30; that is, the axis triangle IEF is located at the tenth triangle position I 10 E 10 F 10 .

[0221] During the process of the above-mentioned door body 30 rotating from G8 to G 11 , the centroid plane P always passes through the axis triangle IEF. Specifically, the centroid plane P is between the first hinge axis 41 and the third hinge axis 43, and is on the side of the first hinge axis 41 away from the second hinge axis 42 away from the front door wall 31. That is, during the process of the door body 30 rotating from G8 to G 11 , 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.

[0222] It should be noted that in some embodiments of the present application, when the door body 30 is rotated and opened from G8 to G 11 During the process, the third guiding section K3 of the guiding track line K is in clearance fit with the second hinge shaft 42 greater than 0 (i.e., the third guiding section K3 is separated from the second hinge shaft 42), and the fifth guiding section K5 is in contact fit with the third hinge shaft 43.

[0223] As Figure 19 、 Figure 33 shown, When, the door body 30 is rotated and opened to G 11 . The first central axis I is located at the eleventh guiding position I 11 of the guiding track line S; among them, the eleventh guiding position I 11 is located on the side of the tenth guiding position I 10 far from the door side wall 32, and the eleventh guiding position I 11 is the end point position of the end of the guiding track line S far from the door side wall 32. The second hinge shaft 42 is in cooperation with the third guiding section K3, and the third hinge shaft 43 is in cooperation with the fifth guiding section K5. At this time ( When), the second central axis E is located at E 11 relative to the door body 30, and the third central axis F is located at F 11 relative to the door body 30; that is, the axis triangle IEF is located at the eleventh triangle position I 11 E 11 F 11 relative to the door body 30. The centroid plane P passes through the eleventh triangle position I 11 E 11 F 11 . 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 far from the second hinge shaft 42 and far from the front wall 31 of the door. That is, when the opening angle of the door body 30 is G 11 , the centroid plane P is between the hinge shafts, and each hinge shaft cooperates to bear the weight of the door body 30 closer to the centroid plane P, effectively increasing the stability of the opening of the door body 30.

[0224] In some embodiments of the present application, when the door body 30 is opened to G 11 , the second hinge shaft 42 and the third hinge shaft 43 are both in contact fit with the inner wall of the guiding groove.

[0225] In some embodiments of the present application, when the door body 30 is opened to G 11When the first hinge shaft 41 is located at the end of the guiding groove away from the door side wall 32, the third hinge shaft 43 is in contact fit with the sixth connection position f of the guiding groove. In this embodiment, along the direction approaching the first connection position a from the sixth connection position f, the sixth guiding section K6 extends towards the direction approaching the door side wall 32 and the door front wall 31. That is, along the direction from the door rear wall to the door front wall, the distance between the sixth guiding section K6 and the door side wall 32 gradually decreases; when the door body 30 is opened to G 11 When the third hinge shaft 43 is in interference fit with one end of the sixth guiding section K6 of the guiding groove away from the door front wall 31, the above settings can enable the door body 30 to stably stay at G 11 state, which is convenient for the user to open the door body 30 to G 11 and then take and place items in the storage room; and prevent the door body 30 from being overly opened under the action of external force, resulting in damage to the hinge assembly. As an optional setting method, at this time, the third hinge shaft 43 is in interference fit with the sixth connection position f of the guiding groove.

[0226] Assume that the door body 30 continues to open from G 11 The third hinge shaft 43 has a tendency to move towards the direction approaching the first connection position a relative to the sixth guiding section K6, and the second hinge shaft 42 has a tendency to move towards the direction approaching the fourth connection position d relative to the third guiding section K3. In this embodiment, along the direction approaching the first connection position a from the sixth connection position f, the sixth guiding section K6 extends towards the direction approaching the door side wall 32 and the door front wall 31, and the distance between the sixth guiding section K6 and the door side wall 32 decreases. Among them, the extending tendency of the sixth guiding section K6 enables the third hinge shaft 43 to have a tendency to move away from the door side wall 32 under the condition of keeping the first hinge shaft 41 moving along the guiding groove and the third hinge shaft 43 being in cooperation with one end of the sixth guiding section K6 away from the door front wall 31 (one end of the fifth guiding section K5 close to the door front wall 31). In this embodiment, since the first hinge shaft 41 is located at the end of the guiding groove away from the door side wall 32 at this time, it cannot continue to move away from the door side wall 32, thereby preventing the movement tendency of the third hinge shaft 43. So that the door body 30 can stably stay at G 11 state.

[0227] As an optional setting method, when the door body 30 is opened to G 11 the third hinge shaft 43 is in interference fit with one end of the sixth guiding section K6 away from the door front wall 31. 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 it is opened to the maximum.

[0228] In some embodiments of the present application, when the door body 30 is opened to G 11When the third hinge shaft 43 is in interference fit with one end of the sixth guiding section K6 away from the front door wall 31 on the side close to the door side wall 32. When the three hinge shafts rotate simply with the central axis of the first hinge shaft 41 as the rotation axis, the distance between the third hinge shaft 43 and the door side wall 32 decreases, and the rate of decrease in the distance between it and the door side wall 32 is greater than the rate of decrease in the distance between the sixth guiding section K6 and the door side wall 32, so that the door side wall 32 of the door body 30 moves in a direction away from the first hinge shaft 41 relative to the hinge axis.

[0229] As a settable manner, along the direction from the door rear wall to the door front wall, the distance between the sixth guiding section K6 and the door side wall 32 gradually decreases, and the rate of decrease in the distance between the sixth guiding section K6 and the door side wall 32 is denoted as λ6; the distance between the fifth guiding section K5 and the door side wall 32 gradually decreases, and the rate of decrease in the distance between the fifth guiding section K5 and the door side wall is denoted as λ5; λ5 > λ6. Combining with the fifth guiding section K5 protruding towards the side away from the guiding centroid O and the sixth guiding section K6 protruding towards the side close to the guiding centroid O, so as to smoothly transition from the sixth connection position f to the first connection position a through the sixth guiding section K6.

[0230] As a settable setting, the above contact fits in the closed state of the door body 30, when the door body 30 is opened to 90° and when the door body 30 is opened to the maximum angle G max (= G 11 ) are all interference fits, so that the door body 30 can stop at its current state.

[0231] The above 0° < G1 < G`1 < G2 < G3 < G4 < G5 < G6 < G7 < G8 < G9 < G 10 < G 11 ; G1, G2, G3, G4, G5, G6, G7, G8, G9, G 10 , G 11 are successively denoted as the first angle G1, the second angle G2, the third angle G3, the fourth angle G4, the fifth angle G5, the sixth angle G6, the seventh angle G7, the eighth angle G8, the ninth angle G9, the tenth angle G 10 , the eleventh angle G 11 . G max is the maximum angle that the door body 30 can be opened. In this embodiment, G max = G 11 . It can be set that G6 = 90°.

[0232] The above door body 30 is opened from G6 to G 11During the process, while the first hinge axis 41 moves away from the door sidewall 32 relative to the guiding groove, the second hinge axis 42 moves away from the door sidewall 32 and the front door wall 31 relative to the guiding groove, and the third hinge axis 43 moves towards the door sidewall 32 and the front door wall 31 relative to the guiding groove.

[0233] Combined with the above analysis of the states at different angles when the door body 30 is opened, during the process of the door body 30 being opened from the closed state to G`1, the centroid plane P is located on the side of the axis triangle IEF away from the front 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. When the door body 30 is opened from G`1 to G 11 During the process, 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 on the side of the first hinge axis 41 away from the second hinge axis 42. That is, when the opening angle of the door body 30 is not greater than G`1, the centroid plane P is not between the hinge axes; while when the opening angle of the door body 30 is greater than G`1, the centroid plane P is between the hinge axes, and the hinge axes cooperate 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.

[0234] As a settable manner, G`1:G max belongs to any value in 0.8 to 1. As a settable manner, G`1 belongs to 20° to 25°, and G max = G 11 = 151°; it can be seen that during most of the opening stroke (83% - 87% of the stroke) of the door body 30, the centroid plane F is always located between the first hinge axis 41 and the third hinge axis 43, effectively ensuring stable force during the entire opening process of the door body 30, and the trajectory-changing movement when the door body 30 is opened is smoother and more stable.

[0235] In summary, it can be known that when the door body 30 is opened from the closed state to G max = G 11 During the process, the first hinge axis 41 moves along a straight line relative to the guiding groove first towards the door sidewall 32 and then away from the door sidewall; the second hinge axis 42 and the third hinge axis 42 rotate clockwise relative to the guiding groove throughout the process.

[0236] Among them, during the process of the door body 30 being opened from the closed state to G4, the first hinge axis 41 moves along a straight line towards the door sidewall relative to the guiding groove, the second hinge axis 42 first moves relative to the first guiding section K1 and then relative to the second guiding section K2; the third hinge axis 43 moves relative to the fourth guiding section K4;

[0237] During the process of the door body 30 being opened from G4 to G6, the first hinge shaft 41 moves linearly away from the door side wall along the guiding groove, and the second hinge shaft 42 moves relative to the second guiding section K2; the third hinge shaft 43 moves relative to the fourth guiding section K4;

[0238] During the process of the door body 30 being opened from G6 to G 11 the first hinge shaft 41 moves linearly away from the door side wall along the guiding groove, and the second hinge shaft 42 moves relative to the third guiding section K3; the third hinge shaft 43 moves relative to the fifth guiding section K5.

[0239] In summary, when the door body 30 is opened from the closed state to G max = G 11 it is divided into three stages. Hereinafter, taking the door body 30 (guiding groove / guiding channel) as the static reference object, the relative movement conditions of these three stages are described from the perspective of the cooperation relationship between the first hinge shaft 41 relative to the guiding groove, and the second hinge shaft 42 and the third hinge shaft 43 relative to the guiding channel:

[0240] In the first stage, combining Figures 8-11 as Figure 21 and Figures 23-26 shown, it is the process of the door body 30 being rotated and opened from the closed state to G4.

[0241] In this first stage, the door body 30 is opened from 0° to G4 successively through G1, G2, and G3. During this process, the first central axis I moves linearly along the guiding track line S of the guiding groove towards the direction close to the door side wall 32; the second hinge shaft 42 first moves relative to the first guiding section K1, and then relative to the second guiding section K2; the third hinge shaft 43 moves relative to the fourth guiding section K4. When the door body 30 is opened to G4, the first hinge shaft 41 moves to the end point of the guiding track line S close to the door side wall 32 - the fourth guiding position I4.

[0242] In the above opening process of the first stage, it is described with the door body 30 (guiding groove / guiding channel) as the reference object.

[0243] When the door body 30 is opened from 0° to G4, the shaft triangle IEF rotates clockwise from the position of I0E0F0 and moves successively to I1E1F1, I2E2F2, I3E3F3, I4E4F4 on the side close to the door side wall 32 (I0E0F0 → I1E1F1 → I2E2F2 → I3E3F3 → I4E4F4). 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: with the door body 30 (guiding groove / guiding channel) as the reference object, the box body 10 rotates clockwise relative to the door body 30 and moves a certain distance towards the direction close to the door side wall 32.

[0244] In summary, when the door body 30 is opened from the closed state to G4, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a displacement parallel to the door rear wall 33 and toward the door side wall 32 relative to the door body 30. According to the relativity of movement, with the box body 10 as a reference, when the door body 30 is opened from the closed state to G4, the door body 30 has a displacement parallel to the door rear wall 33 and toward the side away from the door side wall 32 relative to the box body 10.

[0245] The second stage, see Figure Figures 11-14 ,like Figure 22 and Figures 26-28 As shown, the door body 30 rotates and opens from G4 to G6.

[0246] In the second stage, the door body 30 opens from G4 to G5 to G6. In this process, the first central axis I moves linearly along the guide track line S of the guide groove in a direction away from the door side wall 32; the second hinge axis 42 moves relative to the second guide section K2; the third hinge axis 43 moves relative to the fourth guide section K4. When the door body 30 opens to G6, the second hinge axis 42 moves to the third connection position c.

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

[0248] When the door body 30 is opened from G4 to G6, the axis triangle IEF rotates clockwise from I4E4F4 and moves to I5E5F5 and I6E6F6 (I4E4F4→I5E5F5→I6E6F6) in sequence toward the side away from the door side wall 32. Since the axis triangle IEF is set on the hinge plate 40, the axis triangle IEF represents the movement of the box body 10. It is concluded that: with the door body 30 (guide groove / guide groove) as a reference, the box body 10 opens clockwise relative to the door body 30 and moves a certain distance away from the door side wall 32.

[0249] In summary, when the door body 30 is opened from G4 to G6, with the door body 30 (guide groove / guiding groove) as a reference, the box body 10 has a displacement parallel to the door rear wall 33 and pointing away from the door side wall 32 relative to the door body 30. According to the relativity of movement, with the box body 10 as a reference, when the door body 30 is opened from G4 to G6, the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 relative to the box body 10.

[0250] The third stage, such as Figures 14-19 ,like Figure 22 and Figures 28-33 As shown, the door body 30 is rotated from G6 to G max =G 11 in the process.

[0251] In this third stage, the door body 30 passes through G7, G8, G9, G in sequence from G6 10 and opens to G 11 . During this process, the first central axis I moves linearly along the guiding track line S of the guiding groove in a direction away from the door side wall 32; the second hinge axis 42 moves relative to the third guiding section K3; the third hinge axis 43 moves relative to the fifth guiding section K5. When the door body 30 opens to G 11 , the third hinge axis 43 moves to the sixth connection position f.

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

[0253] When the door body 30 opens from G6 to G 11 , the axis triangle IEF rotates clockwise from the position of I6E6F6 and moves sequentially to I7E7F7, I8E8F8, I9E9F9, I 10 E 10 F 10 , I 11 E 11 F 11 (I6E6F6 → I7E7F7 → I8E8F8 → I9E9F9 → I 10 E 10 F 10 → I 11 E 11 F 11 ). Since the axis triangle IEF is arranged on the hinge plate 40, the axis triangle IEF represents the movement of the box body 10. Then it can be concluded that: taking the door body 30 (guiding groove / guiding slot) as a reference object, the box body 10 opens clockwise relative to the door body 30 and moves a certain distance in a direction away from the door side wall 32.

[0254] To sum up, during the process of the door body 30 opening from G6 to G 11 , taking the door body 30 (guiding groove / guiding slot) as a reference object, the box body 10 has a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 relative to the door body 30. Combining the movement conditions of the above second stage and third stage, according to the relativity of movement, taking the box body 10 as a reference object, during the process of the door body 30 opening from G6 to G 11 , the door body 30 has a displacement parallel to the door rear wall 33 and pointing to the door side wall 32 relative to the box body 10.

[0255] Combining the situations of the first stage, the second stage, and the third stage, it can be known that: According to the relativity of motion, taking the box body 10 as a reference object, the displacement of the door body 30 is a displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 or a displacement parallel to the door rear wall 33 and pointing to the door side wall 32. Among them, relative to the box body 10, the displacement of the door body 30 parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 is denoted as the first-direction displacement. The displacement parallel to the door rear wall 33 and pointing to the door side wall 32 is denoted as the second-direction displacement. Among them, the second-direction displacement and the first-direction displacement are both parallel to the door rear wall 33, but their directions relative to the door side wall 32 are opposite.

[0256] Here, it should 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; "pointing to the side away from the door side wall 32" refers to the direction from the door side wall 32 to the opposite end of the door body 30 to the door side wall 32. In addition, it should be noted that the above first-direction displacement and the second-direction displacement are both instantaneous relative displacements to illustrate the current movement direction of the door body 30 relative to the box body 10.

[0257] Specifically, combining the above analysis of the first stage to the third stage, during the process of the door body 30 being opened from the closed state to G4 (<90°), relative to the box body 10, in the decomposition of the displacement of the door body 30, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32.

[0258] During the process of the door body 30 being opened from G4 to G 11 (>90°), relative to the box body 10, in the decomposition of the displacement of the door body 30, the door body 30 has a second-direction displacement parallel to the door rear wall 33 and pointing to the door side wall 32.

[0259] See Figures 34-38 As shown; in the plane of the top wall of the box body 10, on the side of the box body 10 close to the door body 30, a displacement coordinate system AOB is established; specifically, in the displacement coordinate system AOB, OB is perpendicular to the plane where the access opening is located, and B is on the side of O away from the access opening (front side); OA is parallel to the plane where the access opening is located, and A is on the side of O away from the second body side wall (outer side). That is, in the displacement coordinate system AOB, the direction from the second body side wall to the first body side wall is positive, and the direction from the access opening to the front wall 31 of the door body 30 when the door 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.

[0260] (1) As Figures 35-36 shown, during the process of the door body 30 being opened from the closed state to 90°, when the door body 30 rotates counterclockwise relative to the box body 10 to open, the door side wall 32, the door rear wall 33, and the door front wall 31 also rotate counterclockwise during the opening process at this stage. In the plane of the top wall of the box body 10, along the direction from the second side edge N to the first side edge W (the door rear wall 33 points to the door front wall 31), the door side wall 32 extends outward and forward; along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the door rear wall 33 extends inward and forward.

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

[0262] (1.1) Combining with the description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 being opened from the closed state to G4 (G4 < 90°): During the process of the door body 30 being opened from the closed state to G4, taking the box body 10 as a reference object, the door body 30 has a first-direction displacement parallel to the door rear wall 33 and pointing to the side away from the door side wall 32 That is, the first-direction displacement points to the inner front side (inward and forward side) of the box body 10.

[0263] As Figure 35 shown, in the displacement coordinate system AOB, during the process of the door body 30 being opened from the closed state to G4, the first-direction displacement of the door body 30 is located in the second quadrant (A < 0, B > 0). Decompose the first-direction displacement on the A-axis and the B-axis; the component displacement of the first-direction displacement on the A-axis is and the component displacement on the B-axis is That is, under the trajectory feature setting of the present invention, during the process of the door body 30 being opened from the closed state to G4, in the displacement coordinate system AOB, the door body 30 has and It can be obtained therefrom 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 move in the positive direction of the B axis; that is, during the process of the door body 30 opening from the closed state to G4 (G4 < 90°), the door body 30 has a tendency to move inward and forward relative to the box body 10.

[0264] (1.2) Combining the description of the displacement direction of the door body 30 relative to the box body 10 during the process of the door body 30 opening from G4 (G4 < 90°) to G6 = 90°, it can be known that: during the process of the door body 30 opening from G4 to 90°, with the box body 10 as the reference object, the door body 30 has a second-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 That is, the second-direction displacement Points to the outer rear side (outward and backward side) of the box body 10.

[0265] Such as Figure 36 As shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from G4 to 90°, the second-direction displacement of the door body 30 Is located in the fourth quadrant (A > 0, B < 0). Decompose the second-direction displacement On the A axis and the B axis; the component displacement of the second-direction displacement On the A axis is The component displacement on the B axis is That is, under the setting of the trajectory characteristics of the present invention, during the process of the door body 30 opening from G4 to 90°, in the displacement coordinate system AOB, the door body 30 has And It can be obtained therefrom 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 G4 to 90°, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0266] Such as Figure 37 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.

[0267] Combining the description of the displacement direction of the door body 30 relative to the box body 10 when the door body 30 is opened to 90°, it can be known that: when the door body 30 is opened to 90°, with the box body 10 as the reference object, the door body 30 has a second-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 That is, the second-direction displacement Points to the rear side (backward side) of the box body 10.

[0268] As Figure 37 shown, in the displacement coordinate system AOB, the second-direction displacement of the door body 30 is along the B-axis and points to the negative direction of the B-axis. Decompose the second-direction displacement onto the A-axis and the B-axis; the component displacement of the second-direction displacement on the A-axis is and the component displacement on the B-axis is That is, under the trajectory feature setting of the present invention, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the door body 30 has and From this, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move along the negative direction of the B-axis; that is, when the door body 30 is opened at 90°, the door body 30 has a tendency to move backward relative to the box body 10.

[0269] (3) As Figure 38 shown, when the door body 30 rotates from 90° to open to G 11 During the process, when the door body 30 rotates counterclockwise relative to the box body 10, the door side wall 32 also rotates counterclockwise during the opening process at this stage. In the plane 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.

[0270] During the above opening process, the door side wall 32 starts to rotate counterclockwise from the state perpendicular to the reference plane M0, and the included angle between the door side wall 32 and the plane where the access opening is located gradually increases and the included angle between it and the reference plane M0 gradually decreases; that is, when the door body 30 rotates from 90° to open to G 11 During the process, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends toward the side away from the second body side wall and closer to the access opening. At the same time, the included angle between the door rear wall 33 and the plane where the access opening is located gradually decreases and the included angle between it and the reference plane M0 gradually increases; that is, when the door body 30 rotates from 90° to open to G 11 During the process, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 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.

[0271] In this embodiment, G4 < G6 = 90°; 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 G6 = 90° to G 11 It can be known that: during the process of the door body 30 being opened from 90° to G 11 During the process, taking the box body 10 as a reference, the door body 30 has a second-direction displacement parallel to the door rear wall 33 and pointing to the side of the door side wall 32 i.e., the displacement in the second direction points to the inner rear side (inward and backward side) of the box body 10.

[0272] As Figure 38 shown, in the displacement coordinate system AOB, the door body 30 is opened from G6 = 90° to G 11 During the opening process, the displacement of the door body 30 in the second direction is located in the third quadrant (A < 0, B < 0). The displacement in the second direction is decomposed into displacements on the A-axis and the B-axis; the displacement of the second direction on the A-axis is and the displacement on the B-axis is That is, under the trajectory feature setting of the present invention, when the door body 30 is opened from G6 = 90° to G 11 During the opening process, in the displacement coordinate system AOB, the door body 30 has and 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 negative direction of the B-axis; that is, when the door body 30 is opened from G6 = 90° to G 11 During the opening process, the door body 30 has a tendency to move inward and backward relative to the box body 10.

[0273] In summary, during the whole process of the door body 30 being opened from the closed state to G 11 relative to the box body 10, the movement of the door body 30 is divided into three stages, and the door body 30 has a tendency to move inward first, then outward, and then inward.

[0274] It should be noted that in this embodiment, only some angles in the range of 0 to 90°, 90°, and some angles in the range of 90° to G max = G 11 are used as representatives to illustrate the overall movement trend. However, it can represent the movement trend in the corresponding range and can illustrate that the hinge assembly with the above trajectory features of the present invention can enable the door body 30 to have a tendency to move inward → outward → inward during the opening process.

[0275] In this embodiment, when the door body 30 is in the first stage of opening, it has a tendency to move inward. Specifically, the first hinge shaft 41 moves a certain distance relative to the guiding groove towards the direction close to the door side wall 32, and causes the door body 30 to move inward by a certain distance. While the first hinge shaft 41 moves relative to the guiding groove towards the direction close to the door side wall 32, the second hinge shaft 42 moves relative to the guiding groove towards the direction away from the door side wall 32 and close to the front door wall 31, and the third hinge shaft 43 moves relative to the guiding groove towards the direction close to the door side wall 32 and away from the front door wall 31. The above settings are applicable to the scenario where the refrigerator is installed in an embedded manner in a cabinet. When the door body 30 is opened, the inward movement 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 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. In addition, in this embodiment, during the process of the door body 30 being opened from the closed state to G4, while the door body 30 moves inward, it also moves forward by a certain distance, so that the door body 30 quickly moves away from the box body 10, effectively avoiding squeezing the door seal 5.

[0276] In this embodiment, when the door body 30 is in the second stage of opening, it has a tendency to move outward. Specifically, during the process of the door body 30 being opened from G4 to G6 (= 90°), the first hinge shaft 41 moves a certain distance relative to the guiding groove towards the direction away from the door side wall 32, and causes the door body 30 to move outward by a certain distance. While the first hinge shaft 41 moves relative to the guiding groove towards the direction away from the door side wall 32, the second hinge shaft 42 moves relative to the guiding groove towards the direction away from the door side wall 32 and close to the front door wall 31, and the third hinge shaft 43 continues to move relative to the guiding groove towards the direction close to the door side wall 32 and away from the front door wall 31. The above settings enable the door body 30 to move outward during the process of opening to 90°, so as to reduce the occlusion of the door body 30 on the access opening, facilitate taking and placing items, and also be able to increase the lateral width of the drawer and improve the space utilization rate of the drawer on the premise of ensuring that the drawer placed in the storage room can be pulled out.

[0277] In this embodiment, the second stage is set on the premise of the inward movement of the door body 30 in the above first stage, which can take into account the different requirements of the two stages at the same time and increase the flexible applicability of the refrigerator.

[0278] It should be noted that in some embodiments of the present application, the above-mentioned setting in the second stage can be set independently, and it is not restricted by the inward movement setting of the door body 30 during the process of the above-mentioned first stage when the door body 30 is opened from the closed state to G4; the setting of the door body 30 from the closed state to G4 in cooperation with the above-mentioned second stage setting can be different from the setting of the above-mentioned first stage. For example, it can be set that during the process of the door body 30 being opened from the closed state to G4, the door body 30 rotates around the first hinge axis 41. Additionally, it can be set that during the process of the door body 30 being opened from the closed state to G4, the door body 30 has a tendency to move outward.

[0279] In this embodiment, the door body 30 has a tendency to move inward during the third stage of opening; specifically, when the door body 30 is opened from G6 (=90°) to G 11 During the process, the first hinge axis 41 moves a certain distance away from the door side wall 32 relative to the guiding groove, and causes the door body 30 to move inward a certain distance. While the first hinge axis 41 moves away from the door side wall 32 relative to the guiding groove, the second hinge axis 42 moves away from the door side wall 32 and the front door wall 31 relative to the guiding groove, and the third hinge axis 43 moves towards the door side wall 32 and the front door wall 31 relative to the guiding groove. The above settings are applicable to the scenario of the embedded installation of the refrigerator in the cabinet, which can reduce the limitation of the maximum opening angle that the cabinet can impose on the door body 30, and enable the door body 30 of the refrigerator installed in the cabinet to have a larger maximum opening angle.

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

[0281] It should be noted that in some embodiments of the present application, the above-mentioned setting in the third stage can be set independently, and it is not restricted by the inward movement setting of the door body 30 during the process of the above-mentioned first stage when the door body 30 is opened from the closed state to G4, nor is it restricted by the outward movement setting of the door body 30 during the process of the above-mentioned second stage when the door body 30 is rotated and opened from G4 to G6. The setting of the door body 30 from the closed state to G4 in cooperation with the above-mentioned third stage setting can be different from the setting of the above-mentioned first stage; similarly, the setting of the door body 30 from G4 to G6 in cooperation with the above-mentioned third stage setting can be different from the setting of the above-mentioned second stage.

[0282] Combined with Figures 39-49As shown, it is assumed that the door body 30 rotates around the first central axis I in the previous state to the position in the adjacent subsequent state (the door body 30 is represented by a dashed line). During this rotational movement, the rotation axis of the door body 30 is fixed relative to the door body 30. Then, in this movement trend, when the door body 30 is opened, the first side edge W is located at W` relative to the box body 10; the second side edge N is located at N` relative to the box body 10; the side sealing edge H is located at H` relative to the box body 10. Correspondingly, when the door body 30 is opened to the subsequent state according to the trajectory setting in this embodiment (the door body 30 is represented by a solid line), compared with its previous state, the rotation axis of the door body 30 has changed relative to the door body 30. At this time, the first side edge W is located at W relative to the box body 10; the second side edge N is located at N relative to the box body 10; the side sealing edge H is located at H relative to the box body 10. As Figure 39 In [the figure], the position where the door body 30 represented by the dashed line is located is the position reached when the door body 30 simply rotates around the first central axis I (I0) relative to the door body 30 when the door body 30 is closed to G1; the position where the door body 30 represented by the solid line is located is the position reached when it is rotated and opened to G1 in the setting manner of the present invention; Figure 40 In [the figure], the position where the door body 30 represented by the dashed line is located is the position reached when the door body 30 is rotated and opened to G1 in the rotation manner of the present invention, and then simply rotates around the first central axis I (the first central axis I (I1) in the previous state relative to the door body 30 when the door body 30 is opened to G1) as the central axis to G2; the position where the door body 30 represented by the solid line is located is the position reached when it is rotated and opened to G2 in the setting manner of the present invention; similarly Figures 41-49 It is a schematic diagram of the position comparison of the above two different opening methods at different opening angles.

[0283] 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:

[0284] During the process of the door body 30 being opened from the closed state to G4, 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 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 G4, the door body 30 has a tendency to move inward and forward.

[0285] During the process of the door body 30 being opened from G4 to G6, in the present 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 G4 to G6, the door body 30 has a tendency to move outward and backward.

[0286] During the process of the door body 30 being opened from G6 to G 11 In this application, during the process, the position W of the first side edge is always on the side of W` closer to the second body side wall and the access opening; the position N of the second side edge is always on the side of N` closer to the second body side wall and the access opening; the position H of the side sealing edge is always on the side of H` closer to the second body side wall and the access opening. That is, during the process of the door body 30 being opened from G6 to G 11 the door body 30 has a tendency to move inward and backward.

[0287] The movement tendencies in the above stages are consistent with those in the analysis of the previous stages.

[0288] It should be noted that the comparison between the position of the door body 30 in the current state of the present invention and the position where the assumed door body 30 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 tendency of the door body 30 relative to the previous state during the opening process of the door body 30 in the present invention. Here, only some selected angles are used for comparison and description to present and illustrate the movement tendency when the door body 30 is opened.

[0289] It should be noted that the movement of the first hinge axis 41 relative to the guiding portion 50, and the movements of the second hinge axis 42 and the third hinge axis 43 relative to the guiding portion 60 can move the door body 30 inward or outward in different stages; the length of the guiding trajectory line K described above is not limited by all the above stages; it can be set to have the movement characteristics of at least one of the stages.

[0290] In some embodiments of the present application, in combination with Figures 8-20 as shown, a first reference plane M1 and a second reference plane M2 are also defined. Among them, as shown in Figure 20 the first reference plane M1 is a plane parallel to the reference plane M0 and perpendicular to the plane where the access opening is located. The first reference plane M1 is the plane where the second body side wall is located; that is, the first reference plane M1 is parallel to the first body side wall (reference plane M0); the second reference plane M2 is the plane where the access opening of the storage chamber is located. The first reference plane M1 and the second reference plane M2 do not move along with the door body 30 during 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.

[0291] During the opening process of the door body 30, the first side edge W moves as the door body 30 is opened, and its movement trajectory is recorded as the first side edge trajectory line. In the projection on the plane of the top wall of the box body 10, during the opening process of the door body 30, the first side edge W first moves in the direction away from the first reference plane M1 and closer to the second reference plane M2, and then moves in the direction closer to the first reference plane M1 and the second reference plane M2.

[0292] During the opening process of the door body 30, the second side edge N moves along with the opening of the door body 30, and its movement trajectory is recorded as the second side edge trajectory line. In the projection on the plane where the top wall of the box body 10 is located, during the opening process of the door body 30, the second side edge N first moves in the direction close to the first reference plane M1 and the second reference plane M2, and then moves in the direction close to the first reference plane M1 and away from the second reference plane M2.

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

[0294] Among them, in the projection on the plane where the top wall of the box body 10 is located, the straight line where the side sealing edge H and the second side edge N are located is recorded as HN. During the opening process of the door body 30, when the door body 30 is opened from the closed state to the angle G0, the second side edge N is located on the side of the side sealing edge H close to the first body side wall. And when the door body 30 is opened from the angle G0 to G 11 In the process, the second side edge N is located on the side of the side sealing edge H away from the first body side wall. In some embodiments of the present application, the maximum opening angle that the door body 30 can open can reach 150°. When the refrigerator is not embedded in the cabinet, the hinge assembly with the trajectory characteristics in this embodiment makes the maximum opening angle of the door body 30 larger. It can be set that G0 belongs to any value in the range of 123° to 127°.

[0295] Embodiment Two

[0296] The difference between this Embodiment Two and Embodiment One is that in this embodiment, the stage where the door body 30 moves inward from the closed state to G4 in the first stage is not set. Specifically, the first hinge member in this embodiment is set in the same way as in Embodiment One, and will not be elaborated here. As Figure 50 shown, in this Embodiment Two, the positions of the guiding portion 60 and the guiding portion 50 when the door body 30 is closed can be the same as the corresponding positions of the guiding portion 60 and the guiding portion when the door body 30 in Embodiment One is opened to any angle 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 G4, and the position of the guiding portion 50 when the door body 30 is closed to be the same as the position of the guiding portion 50 when the door body 30 in Embodiment One is opened to G4 as an example for description, but it should be noted that the setting of this embodiment is not limited by this G4.

[0297] Specifically, in this embodiment, the guiding portion 60 on the door body 30 rotates counterclockwise by G4 relative to the guiding portion 60 in the first embodiment, and the guiding portion 50 on the door body 30 rotates counterclockwise by G4 relative to the guiding portion 50 in the first embodiment.

[0298] Compared with the arrangement in which the guiding portion 50 is parallel to the front door wall 31 in the first embodiment, in the second embodiment, the included angle between the guiding portion 50 and the front door wall 31 is G4; and the guiding portion 50 extends from its end close to the door side wall 32 towards the direction away from the door side wall 32 and close to the front door wall 31. Correspondingly, 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 increases linearly. It should be noted that in this embodiment, the included angle between the guiding portion 50 and the front door wall 31 is not limited to being set as G4. Optionally, the included angle between the guiding track line S and the front door wall 31 belongs to any value within 58° to 88°; so as to effectively control the angular range of the outward movement of the door body 30 in the initial stage during the opening process.

[0299] For unified description, the guiding positions on the guiding track line S are the same as those in the first embodiment. The fourth guiding position I4 is the end point position of the guiding track line S close to the door side wall 32, and the eleventh guiding position I 11 is the end point position of the guiding track line S away from the door side wall 32; the eleventh guiding position I 11 is located on the side of the fourth guiding position I4 away from the door side wall 32 and close to the front door wall 31, and the guiding track line S is a straight line. That is, the guiding portion 50 is in an inclined straight shape, and the guiding groove is an inclined straight groove. The fourth guiding position I4, the fifth guiding position I5, the sixth guiding position I6, the seventh guiding position I7, the eighth guiding position I8, the ninth guiding position I9, the tenth guiding position I 10 and the eleventh guiding position I 11 are successively away from the door side wall 32 and close to the front door wall 31.

[0300] Similar to Embodiment 1, optionally, the guiding track line K includes a first guiding segment K1, a second guiding segment K2, a third guiding segment K3, a fourth guiding segment K4, a fifth guiding segment K5, and a sixth guiding segment K6 that are connected end to end in sequence; that is, the guiding track line K is in a closed loop shape, and the guiding groove is an annular closed groove to effectively limit the movement of the second hinge shaft 42 and the third hinge shaft 43, while preventing the second hinge shaft 42 and the third hinge shaft 43 from disengaging from the guiding groove. Among them, the connection point of the sixth guiding segment K6 and the first guiding segment K1 is denoted as the first connection position a, the connection point of the first guiding segment K1 and the second guiding segment K2 is denoted as the second connection position b, the connection point of the second guiding segment K2 and the third guiding segment K3 is denoted as the third connection position c, the connection point of the third guiding segment K3 and the fourth guiding segment K4 is denoted as the fourth connection position d, the connection point of the fourth guiding segment K4 and the fifth guiding segment K5 is denoted as the fifth connection position e, and the connection point of the fifth guiding segment K5 and the sixth guiding segment K6 is denoted as the sixth connection position f. In this embodiment, the guiding groove surrounds its guiding centroid O, and the first guiding segment K1, the second guiding segment K2, the third guiding segment K3, the fourth guiding segment K4, and the fifth guiding segment K5 all protrude away from the guiding centroid O; the sixth guiding segment K6 protrudes towards the guiding centroid O, so that the guiding track line K smoothly transitions from the fifth connection position e to the first connection position a. It should be noted that in this embodiment, the guiding portion 50 and the guiding portion 60 are rotated by a corresponding angle with respect to their relationship with the door body 30 in Embodiment 1, which results in a change in the positional relationship between the guiding portion 50 and the guiding portion 60 and the door side wall 32 and the door front wall 31 of the door body 30 in the second embodiment compared to the first embodiment (see Figure 50 ), which will not be elaborated here.

[0301] In the second embodiment, when the door body 30 is closed, the first hinge shaft 41 is located at the fourth guiding position I4 close to the door side wall 32 of the guiding track line S, the second hinge shaft 42 cooperates with the second guiding segment K2; the third hinge shaft 42 cooperates with the fourth guiding segment K4.

[0302] In the second embodiment, the first connection position a is located on the side of the fourth guiding position I4 close to the door rear wall 33. The second connection position b is located on the side of the first connection position a close to the door side wall 32 and the door front wall 31; in this embodiment, the second connection position b is located on the side of the fourth guiding position I4 close to the door rear wall 33 and the door side wall 32.

[0303] The third connection position c is located on the side of the second connection position b close to the door front wall 31 and away from the door side wall 32; in this embodiment, the third connection position c is located on the side of the first connection position a close to the door side wall 32;

[0304] The fourth connection position d is located on the side of the third connection position c away from the door rear wall 33 and the door side wall 32, and the fourth connection position d is located on the side of the first connection position a away from the door side wall 33.

[0305] The fifth connection position e is located on the side of the fourth connection position d close to the rear wall 33 of the door and away from the side wall 32 of the door; in this embodiment, the fifth connection position e is located on the side of the first connection position a close to the rear wall 33 of the door.

[0306] The sixth connection position f is located on the side of the fifth connection position e close to the front wall 31 and the side wall 32 of the door. In this embodiment, the sixth connection position f is located on the side of the first connection position a close to the rear wall 33 of the door and away from the side wall 33 of the door. As a settable manner, the sixth connection position f is located on the side of the fourth connection position d close to the side wall 32 and the rear wall 33 of the door.

[0307] That is, in the projection on the plane where the front wall 31 of the door is located, the second connection position b, the third connection position c, the first connection position a, the sixth connection position f, the fourth connection position d, and the fifth connection position e are successively away from the side wall 32 of the door. In this embodiment, in the projection on the plane where the front wall 31 of the door is located, relative to the first connection position a, the third connection position c is closer to the second connection position b.

[0308] As a settable manner, in the projection on the plane where the front wall 31 of the door is located, the third connection position c is adjacent to the second connection position b. Optionally, in the projection on the plane where the front wall 31 of the door is located, the distance between the third connection position c and the second connection position b is less than 4 mm; the distance between the first connection position a and the second connection position b is less than 12 mm.

[0309] And in the projection on the plane where the side wall 32 of the door is located, the fourth connection position d, the third connection position c, the second connection position b, the first connection position a, the sixth connection position f, and the fifth connection position e are successively away from the front wall 31 of the door.

[0310] During the opening process of the door body 30, the first hinge shaft 41 moves relative to the guiding groove, and the second hinge shaft 42 and the third hinge shaft 43 move relative to the guiding groove. With the same principle as described in Embodiment 1, when the door body 30 is in the closed state in this Embodiment 2, the first central axis I is located at the fourth guiding position I4, the second central axis E is located at E4 relative to the door body 30, and the second central axis F is located at F4 relative to the door body 30.

[0311] As a settable manner, when the door body 30 is closed, the second hinge shaft 42 is in interference fit with the second guiding section K2, and the third hinge shaft 43 is in interference fit with the fourth guiding section K4; to prevent the door body 30 from continuing to move in the closing direction from the closed state, and to avoid the door body 30 from being over-closed due to excessive force and then rebounding and opening; and to enable the door body 30 to stably stay in the closed state, increasing the stability of the door body 30 in the closed state.

[0312] In this Embodiment 2, the opening angles of the door body 30 are denoted as Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8. As Figures 50-59As shown, in combination with the relevance between the second embodiment and the first embodiment, the movement process of the door body 30 being opened is described from the following 8 aspects. Among them, Q0 = 0° = G4 - G4, Q1 = G5 - G4, Q2 = G6 - G4, Q3 = G7 - G4, Q4 = G8 - G4, Q5 = G9 - G4, Q 6` = 90°, Q6 = G 10 - G4, Q7 = G 11 - G4. It should be noted that the description of the angle relationship between the second embodiment and the first embodiment is only for corresponding illustration of the movement in the second embodiment, and the angles in the second embodiment are not limited by the angle relationship in the above two embodiments.

[0313] See Figure 50 , when the door body 30 is closed, Q0 = 0°. When the first central axis I moves to the fourth guiding position I4 of the guiding track line S, the second central axis E is located at E4 relative to the door body 30, and the third central axis F is located at F4 relative to the door body 30; that is, the axis triangle IEF is located at the fourth triangle position I4E4F4 relative to the door body 30.

[0314] See Figure 51 , when the door body 30 is opened to Q1 = G5 - G4, the first central axis I moves to the fifth guiding position I5 of the guiding track line S, the second central axis E is located at E5 relative to the door body 30, and the third central axis F is located at F5 relative to the door body 30; that is, the axis triangle IEF is located at the fifth triangle position I5E5F5 relative to the door body 30.

[0315] See Figure 52 , when the door body 30 is opened to Q2 = G6 - G4, the first central axis I moves to the sixth guiding position I6 of the guiding track line S, the second central axis E is located at E6 relative to the door body 30, and the third central axis F is located at F6 relative to the door body 30; that is, the axis triangle IEF is located at the sixth triangle position I6E6F6 relative to the door body 30. Among them, Q2 < 90°.

[0316] See Figure 53 , when the door body 30 is opened to Q3 = G7 - G4, the first central axis I moves to the seventh guiding position I7 of the guiding track line S, the second central axis E is located at E7 relative to the door body 30, and the third central axis F is located at F7 relative to the door body 30; that is, the axis triangle IEF is located at the seventh triangle position I7E7F7 relative to the door body 30.

[0317] See Figure 54 , when the door body 30 is opened to Q4 = G8 - G4, the first central axis I moves to the eighth guiding position I8 of the guiding track line S, the second central axis E is located at E8 relative to the door body 30, and the third central axis F is located at F8 relative to the door body 30; that is, the axis triangle IEF is located at the eighth triangle position I8E8F8 relative to the door body 30.

[0318] SeeFigure 55 When the door body 30 is opened to Q5 = G9 - G4, 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.

[0319] See Figure 56 When the door body 30 is opened to Q 6` = 90°, the first central axis I moves to the guiding position where I 6` is located on the guiding track line S, the second central axis E is located at E 6` relative to the door body 30, and the third central axis F is located at F 6` relative to the door body 30; that is, the axis triangle IEF is located at the triangle position defined by I 6` E 6` F 6` relative to the door body 30.

[0320] See Figure 57 When the door body 30 is opened to Q6 = G 10 - G4, the first central axis I moves to the tenth guiding position I 10 on the guiding track line S, the second central axis E is located at E 10 relative to the door body 30, and the third central axis F is located at F 10 relative to the door body 30; that is, the axis triangle IEF is located at the tenth triangle position I 10 E 10 F 10 .

[0321] See Figure 58 When the door body 30 is opened to Q7 = G 11 - G4, the first central axis I moves to the eleventh guiding position I 11 on the guiding track line S, the second central axis E is located at E 11 relative to the door body 30, and the third central axis F is located at F 11 relative to the door body 30; that is, the axis triangle IEF is located at the eleventh triangle position I 11 E 11 F 11 .

[0322] Based on the same principle as in the first embodiment, it can be obtained that in the second embodiment, taking the door body 30 (guide groove / guide channel) as a reference object, relative to the door body 30, the cabinet 10 has a displacement parallel to the rear door wall 33 and pointing to the side away from the door side wall 32 and a displacement parallel to the door side wall 32 and pointing to the front door wall 31. According to the relativity of motion, taking the cabinet 10 as a reference object, during the process of the door body 30 being opened from the closed state to the maximum angle, the door body 30 has a displacement parallel to the rear door wall 33 and pointing to its door side wall 32 and a displacement parallel to the door side wall 32 and pointing to the side away from the front door wall 31 relative to the cabinet 10.

[0323] Among them, similar to the first embodiment, the displacement parallel to the rear door wall 33 and pointing to the door side wall 32 relative to the cabinet 10 is denoted as the second-direction displacement In the second embodiment, the displacement parallel to the door side wall 32 and pointing to the side away from the front door wall 31 is denoted as the third-direction displacement

[0324] Based on the description of the direction pointing to the door side wall 32 or pointing to the side away from the door side wall 32 in the first embodiment, it should be supplemented that "pointing to the side away from the front door wall 31" refers to the direction from the front door wall 31 to the rear door wall 33. In addition, it should be noted that the above second-direction displacement third-direction displacement are all instantaneous relative displacements to illustrate the current movement direction of the door body 30 relative to the cabinet 10.

[0325] Next, based on the same principle as in the first embodiment, a displacement coordinate system AOB stationary relative to the cabinet 10 is established, and the movement trend of the door body 30 is described in the displacement coordinate system AOB.

[0326] (1) As Figures 60-61 shown, during the process of the door body 30 being opened from the closed state to 90°, during the counterclockwise rotation and opening of the door body 30 relative to the cabinet 10, the door side wall 32, the rear door wall 33, and the front door wall 31 also rotate counterclockwise during this stage of opening. In the plane of the top wall of the cabinet 10, along the direction from the second side edge N to the first side edge W (from the rear door wall 33 to the front door wall 31), the door side wall 32 extends outward and forward; along the direction from the door side wall 32 to the opposite end of the door body 30 relative to the door side wall 32, the rear door wall 33 extends inward and forward.

[0327] During the above opening process (from the closed state to 90°), the door side wall 32 starts to rotate counterclockwise from a state parallel to the reference plane M0. The angle between the door side wall 32 and the plane where the pick-and-place opening is located gradually decreases, and the angle between it and the reference plane M0 gradually increases. That is, during the process of the door body 30 opening from the closed state to 90°, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends towards the side away from the second body side wall and the pick-and-place opening. At the same time, as the opening angle of the door body 30 increases, the angle between the door rear wall 33 and the plane where the pick-and-place opening is located gradually increases, and the angle between the door rear wall 33 and the reference plane M0 gradually decreases. That is, during the process of the door body 30 opening from the closed state to 90°, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 with respect to the door side wall 32, the door rear wall 33 extends towards the side away from the first body side wall and the pick-and-place opening.

[0328] (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 Q2, it can be known that: during the process of the door body 30 opening from the closed state to Q2, taking the box body 10 as a reference, the door body 30 has a second-direction displacement parallel to the door rear wall 33 and pointing towards the door side wall 32 and a third-direction displacement parallel to the door side wall 32 and pointing towards the side away from the door front wall 31. That is, during this opening stage, the second-direction displacement points to the outer rear side (outward and backward side) of the box body 10, and the third-direction displacement points to the inner rear side (inward and backward side) of the box body 10.

[0329] As Figure 60 shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from the closed state to Q2, the second-direction displacement of the door body 30 is located in the fourth quadrant (A > 0, B < 0), and the third-direction displacement is located in the third quadrant (A < 0, B < 0). The second-direction displacement and the third-direction displacement are respectively decomposed into displacements on the A-axis and the B-axis; the component displacement of the second-direction displacement on the A-axis is and the component displacement on the B-axis is The component displacement of the third-direction displacement on the A-axis is and the component displacement on the B-axis is Among them, under the trajectory feature setting of the present invention, there is Then there is, 0, That is, under the trajectory feature setting of the present invention, when the door body 30 is opened from the closed state to Q2, in the displacement coordinate system AOB, the door body 30 has and It can be concluded that: relative to the box body 10, the door body 30 has a tendency to move positively along the A axis and negatively toward the B axis; that is, when the door body 30 is opened from the closed state to Q2, the door body 30 has a tendency to move outward and backward relative to the box body 10.

[0330] On the contrary, when the door body 30 is closed, the second direction displacement is Parallel to the door rear wall 33 and pointing to the side away from the door side wall 32, the third direction displacement parallel to the door side wall 32 and pointing to the door front wall 31;

[0331] Second direction displacement The displacement on the A axis is The displacement on the B axis is Displacement in the third direction The displacement on the A axis is The displacement on the B axis is Under the trajectory characteristics of the present invention, That is, when the door body 30 is closed at the angle Q2, the door body 30 has a tendency to move negatively along the A axis and positively toward the B axis relative to the box body 10; that is, when the door body 30 is closed at the angle Q2, the door body 30 has a tendency to move inward relative to the box body 10.

[0332] (1.2) Combined with the door body 30, it is opened from Q2 to Q 6` = 90°, the displacement direction of the door body 30 relative to the box body 10 can be seen: the door body 30 opens from Q2 to Q 6` =90°, with the box body 10 as a reference, the door body 30 has a second direction displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a third direction displacement parallel to the door side wall 32 and pointing away from the door front wall 31 That is, in this opening stage, the second direction displacement Pointing to the outer rear side of the box 10 (outward and rearward side), the third direction displacement Toward the inner rear side of the housing 10 (inward and rearward side).

[0333] like Figure 61 As shown, in the displacement coordinate system AOB, the door body 30 is opened from Q2 to Q 6` =90°, the second displacement of the door body 30 is in the fourth quadrant (A>0, B<0), and the third displacement Located in the third quadrant (A<0, B<0). Displacement in the second direction and the third direction displacement Displacement decomposition is performed on the A axis and the B axis respectively; displacement in the second direction The displacement on the A axis is The displacement on the B axis is Displacement in the third direction The displacement on the A axis is The displacement on the B axis is Among them, the trajectory feature setting of the present invention has Then there is, That is, under the trajectory characteristic setting of the present invention, the door body 30 is opened from Q2 to Q 6` =90°, in the displacement coordinate system AOB, the door body 30 has and It can be concluded that: relative to the box body 10, the door body 30 has a tendency to move in the negative direction along the A axis and in the negative direction of the B axis; that is, when the door body 30 is opened from the closed state to Q2, the door body 30 has a tendency to move inward and backward relative to the box body 10.

[0334] (2) Figure 62 As shown, when the door body 30 is opened to 90°, the door side wall 33 is parallel to the plane where the access port is located, and is perpendicular to the reference plane M0; at this time, the door rear wall 33 is parallel to the reference plane M0, and is perpendicular to the plane where the access port is located. That is, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends from inside to outside, and the door rear wall 33 extends from back to front.

[0335] When the door body 30 is opened to 90°, with the box body 10 as a reference, the door body 30 has a second direction displacement parallel to the door rear wall 33 and pointing to the door side wall 32. and a third direction displacement parallel to the door side wall 32 and pointing away from the door front wall 31 That is, at this opening angle, the second direction displacement Pointing to the rear side of the box 10, the third direction displacement Towards the inner side of the box body 10.

[0336] like Figure 62 As shown, in the displacement coordinate system AOB, the second direction displacement of the door body 30 Along the B axis and pointing to the negative direction of the B axis, the displacement in the third direction Along the A axis and pointing to the negative direction of the A axis. Second direction displacement The displacement on the A axis is The displacement on the B axis is Displacement in the third direction The component displacement on the A axis is The component displacement on the B axis is Among them, That is, when the door body 30 is opened to 90°, in the displacement coordinate system AOB, the door body 30 has and two displacement components; 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 negative direction of the B axis; that is, when the door body 30 is opened to 90°, the door body 30 has a tendency to move inward and backward relative to the box body 10.

[0337] (3) As Figure 63 shown, when the door body 30 rotates from 90° to Q7, 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 from the door side wall 32, the door rear wall 33 extends outward and forward.

[0338] 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 Q7, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door side wall 32 extends 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 Q7, relative to the box body 10, along the direction from the door side wall 32 to the opposite end of the door body 30 from the door side wall 32, the door rear wall 33 extends toward the side away from the second body side wall and the access opening.

[0339] During the process of the door body 30 opening from 90° to Q7, taking the box body 10 as a reference, the door body 30 has a second-direction displacement parallel to the door rear wall 33 and pointing to the door side wall 32 and a third-direction displacement parallel to the door side wall 32 and pointing to the side away from the front door wall 31 That is, in this opening stage, the second-direction displacement points to the inner rear side (inward and backward side) of the box body 10, and the third-direction displacement points to the inner front side (inward and forward side) of the box body 10.

[0340] As Figure 63 shown, in the displacement coordinate system AOB, during the process of the door body 30 opening from 90° to Q7, the second-direction displacement Located in the third quadrant (A < 0, B < 0), the third-direction displacement Located in the second quadrant (A < 0, B > 0). For the second-direction displacement and the third-direction displacement Perform displacement decomposition on the A-axis and B-axis respectively; the second-direction displacement The component displacement on the A-axis is The component displacement on the B-axis is The third-direction displacement The component displacement on the A-axis is The component displacement on the B-axis is Among them, under the trajectory feature setting of the present invention, there is Then there is That is, under the trajectory feature setting of the present invention, during the process of the door body 30 opening from 90° to Q7, in the displacement coordinate system AOB, the door body 30 has and Two displacement components. From this, it can be obtained that: relative to the box body 10, the door body 30 has a tendency to move in the negative direction of the A-axis and move in the negative direction of the B-axis; that is, during the process of the door body 30 opening from the closed state to 90°, the door body 30 has a tendency to move inward and backward relative to the box body 10.

[0341] In summary, during the whole process of the door body 30 opening from the closed state to Q7, relative to the box body 10, the movement of the door body 30 is divided into two stages, and the door body 30 has a tendency to move outward first and then move inward.

[0342] Same as Embodiment 1, it should be noted that in this embodiment, only some angles in the range of 0 to 90°, 90°, and some angles in the range of 90° to G max = Q7 are used as representatives to illustrate the overall movement trend, but it can represent the movement trend in the corresponding range, and it can illustrate that the hinge assembly with the above trajectory features of the present invention can make the door body 30 have a movement trend of moving outward first and then inward (outward → inward) during the opening process.

[0343] In the second embodiment, the door body 30 has a tendency to move outward 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 Q2, while the first hinge shaft 41 moves relative to the guiding groove away from the door side wall 32 and closer to the door front wall 31, the second hinge shaft 42 moves relative to the guiding groove away from the door side wall 32 and closer to the door front wall 31, and the third hinge shaft 43 moves relative to the guiding groove away from the door front wall 31. As a settable method, during the above opening process, the third hinge shaft 43 moves relative to the guiding groove away from the door front wall 31 and closer to the door side wall 32.

[0344] In the second embodiment, the door body 30 has a tendency to move inward during the second stage of opening; that is, the door body 30 has a tendency to move inward during the process of continuing to open at Q2. Specifically, as a settable manner, during the process of the door body 30 opening from Q2 to Q7, while the first hinge shaft 41 moves relative to the guiding groove away from the door side wall 32 and towards the door front wall 31, the second hinge shaft 42 moves relative to the guiding groove away from the door side wall 32 and towards the door front wall 31, and the third hinge shaft 43 moves relative to the guiding groove towards the door side wall 32. As a settable manner, during the opening process of the second stage, the third hinge shaft 42 moves relative to the guiding groove first away from the door front wall 31 and then towards the door front wall 31. The above setting of the inward movement of the door body 30 during the opening process is applicable to the scenario of the built-in installation of the refrigerator in the cabinet. On the one hand, it can be set in the early stage of the opening of the door body 30, so that the door body 30 moves inward, which can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, and limit the distance of the first side edge W exceeding the reference plane M0 not to exceed the distance between the cabinet and the side wall of the refrigerator body, effectively avoiding the interference between the door body 30 and the cabinet 100 when the door body 30 is opened, and further reducing the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of the cabinet 100 space. On the other hand, in the second 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.

[0345] It should be noted that the first stage and the second stage in the second embodiment can be set separately and are not restricted by the movement conditions of the other stage; it can also be set to experience the first stage first and then the second stage.

[0346] Combined with Figures 64-71 As shown, it is assumed that the door body 30 rotates around the first central axis I in the previous state to the position in the adjacent subsequent state (the door body 30 is represented by a dotted line). During this movement process, the rotation axis of the door body 30 is fixed relative to the door body 30; then under this movement trend, when the door body 30 is opened, the first side edge W is located at W` relative to the box body 10; the second side edge N is located at N` relative to the box body 10; the side sealing edge H is located at H` relative to the box body 10. Correspondingly, when the door body 30 is opened to the subsequent state according to the trajectory setting in this embodiment (the door body 30 is represented by a solid line), compared with its previous state, the rotation axis of the door body 30 has changed relative to the door body 30; at this time, the first side edge W is located at W relative to the box body 10; the second side edge N is located at N relative to the box body 10; the side sealing edge H is located at H relative to the box body 10. As Figure 64Among them, the position of the door body 30 indicated by the dashed line is the position reached when the door body 30 rotates solely around the first central axis I (I0) of the door body 30 relative to the door body 30 when the door body 30 is closed; the position of the door body 30 indicated by the solid line is the position reached when the door body 30 rotates and opens to Q1 in the setting manner of the present invention; Figure 65 Among them, the position of the door body 30 indicated by the dashed line is the position reached when the door body 30 rotates and opens to Q1 in the rotation manner of the present invention and then rotates solely around the first central axis I (the first central axis I (I5) of the door body 30 in the previous state) of the door body 30 relative to the door body 30 when the door body 30 is opened to Q1 to Q2; the position of the door body 30 indicated by the solid line is the position reached when the door body 30 rotates and opens to Q2 in the setting manner of the present invention; similarly Figures 66-71 It is a schematic diagram of the position comparison of the above two different opening methods at different opening angles.

[0347] By comparing the setting of the present invention with the method of the door body 30 rotating solely around its first central axis I in the previous state, it can be known that:

[0348] During the process of the door body 30 opening from the closed state to Q2, in the present application, the position W of the first side edge is always on the side where W` is away from the second body side wall and close to the access opening; the position N of the second side edge is always on the side where N` is away from the second body side wall and close to the access opening; the position H of the side sealing edge is always on the side where H` is away from the second body side wall and close to the access opening. That is, during the process of the door body 30 opening from the closed state to Q2, the door body 30 has a tendency to move outwards and backwards.

[0349] During the process of the door body 30 opening from Q2 to Q7, in the present application, the position W of the first side edge is always on the side where W` is close to the second body side wall and the access opening; the position N of the second side edge is always on the side where N` is close to the second body side wall and the access opening; the position H of the side sealing edge is always on the side where H` is close to the second body side wall and the access opening. That is, during the process of the door body 30 opening from Q2 to Q7, the door body 30 has a tendency to move inwards and backwards.

[0350] The movement trends in the above stages are consistent with the movement trends in the previous stages.

[0351] 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 assumed when the door body 30 rotates solely around the first central axis I from the previous state of the present invention to the opening angle of the door body 30 of the present invention is representative. It can represent the movement trend of the door body 30 relative to the previous state during the opening process of the door body 30 of the present invention. Here, only some selected angles are used for comparison and description to present and illustrate the movement trend of the door body 30 when it is opened.

[0352] 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 inwards or outwards at different stages; the length of the guiding trajectory line K described above is not limited by all the above stages; it can be set to have the movement characteristics of at least one of the stages.

[0353] Embodiment III

[0354] In Embodiment III, as Figures 72-76 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.

[0355] Combined with the setting of the hinge assembly in Embodiment II, the hinge assembly in this embodiment has the movement characteristics of the first stage (refer to the stage when the door body is opened from the closed state to Q2 in Embodiment II, which will not be elaborated here). That is, in this Embodiment III, during the process of the door body 30 being opened from the closed state to Q2, the door body 30 first moves outwards, which can avoid one of the two oppositely arranged door bodies 30 driving the other door body 30 to be opened when it is opened, effectively reducing the loss of cold quantity; at the same time, it can effectively reduce the shielding of the access opening by the door body 30.

[0356] Embodiment IV

[0357] As Figures 72-76 shown, the refrigerator in this Embodiment IV is also provided with 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. Its setting method is the same as that in Embodiment III.

[0358] Different from Embodiment III, as Figure 77 shown, the refrigerator in this Embodiment IV can be applicable to the situation of being embedded in a cabinet.

[0359] Specifically, different from Embodiment 3 and combined with the setting of the hinge assembly in Embodiment 2, the hinge assembly in Embodiment 4 has the overall motion characteristics in the first stage and the second stage (refer to Embodiment 2 and will not be elaborated here). It can be set that the door body 30 moves outward in the first stage and then moves inward in the second stage during the opening process.

[0360] Specifically, in this Embodiment 4, during the process of opening the door body 30 from the closed state to Q2, the door body 30 first moves outward. During the process of continuously opening the door body 30 from Q2, it has a tendency to move inward. With the above settings, on the one hand, it can move outward at the initial stage of opening the door body 30 to avoid driving another door body 30 to open and reduce the cold loss. On the other hand, after the two door bodies 30 are separated, it can make the opened door body 30 move inward, which can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, limit the distance that the first side edge W exceeds the reference plane M0 not to exceed the distance between the cabinet and the side wall of the refrigerator body, effectively avoid the interference between the door body 30 and the cabinet 100 when the door body 30 is opened, further reduce the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improve the utilization rate of the cabinet 100 space. Moreover, setting the door body 30 to move inward during the process of opening to the maximum angle can reduce the limitation of the cabinet on the maximum angle that the door body 30 can open, so that the door body 30 of the refrigerator installed in the cabinet can open to a larger maximum angle.

[0361] In some embodiments of the present application, Q2 belongs to any value among any values of 10° to 15°.

[0362] Embodiment 5

[0363] As Figures 78-82 shown, in this Embodiment 5, the refrigerator includes two relatively arranged door bodies 30, and the two relatively arranged door bodies 30 cooperate together to open or close the access opening. Among them, when the two door bodies 30 are closed, a flip beam 9 is provided on the inner lining surface of one door body 30 close to the other door body 30. A guide rail 91 is provided on the top wall of the storage room of the refrigerator, and the flip beam 9 can be slidably engaged with the guide rail 91 to realize the switching of different angles of the flip beam 9 relative to the door body 30. When the two door bodies 30 are closed, the flip beam 9 closes the gap between the two door bodies 30 and the box body 10 to effectively prevent cold air from overflowing.

[0364] Specifically, the flip beam 9 includes a door turning beam rear cover, and the door turning beam rear cover is connected to the door body 30 through the first door hinge and the second door hinge, and the door turning beam rear cover is elastically connected to the two door hinges by torsion springs respectively; among them, the first door hinge is located above the second door hinge. Among them, a guide block 90 is fixedly provided on the top of the door turning beam rear cover, and the guide block 90 serves as a rotating component of the flip beam 9 to cooperate with the guide rail 91 to realize the switching of different angles of the flip beam 9 relative to the door body 30.

[0365] Both the door hinge and the rear cover of the door rotating beam are provided with through holes for passing the torsion spring force arms, and the upper and lower door hinges are connected to the rear cover of the door rotating beam by using a torsion spring. Specifically, the first door hinge is connected to the rear cover of the door rotating beam by a first torsion spring, and the second door hinge is connected to the rear cover of the door rotating beam by a second torsion spring. When the rotating beam 9 rotates around the door hinge, the first torsion spring and the second torsion spring store or release elastic energy, so that the rear cover of the door rotating beam rotates stably and returns to its original position in time.

[0366] In the state where the door body 30 is opened, due to the action of the torsion force of the torsion spring (the first torsion spring and the second torsion spring), the rotating beam 9 closely adheres to the side of the door hinge fixed to the inner lining of the door body 30.

[0367] As Figures 81-82 shown, when the door body 30 is closed from the open state, an external force is first applied to the door body 30. Under the action of the external force, the door body 30 gradually closes. When the door body 30 is closed to an angle G S , the guiding block 90 at the topmost end of the rotating beam 9 comes into contact with the guiding rail 91.

[0368] When the door body 30 is closed to the angle G S , and the external force is continuously applied, the door body 30 continues to move in the closing direction. The guiding block 90 at the topmost end of the rotating 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 guiding block 90 starts to turn over, and the torsion spring is compressed in the radial direction. When the rotating beam 9 turns over by G' F , it reaches the critical value of the torsion spring. After that, the torsion spring starts to stretch to release the torsion force of the torsion spring so that the rotating beam 9 quickly turns over in place; until the door body 30 is closed, at this time the torsion force of the torsion spring is released and returns to the relaxed state again. After the door body 30 is closed, the rotating beam 9 contacts the seal provided on the door body 30, effectively preventing cold air from leaking out between the seams of the double-opening doors. If the external force is removed before the rotating beam 9 turns over 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 rotating beam cannot be effectively turned over after entering the guiding rail 91 on the box body and is stuck, and the rotating beam cannot automatically complete the turning over, resulting in the door body 30 with the rotating beam not being able to be closed in place, causing the failure of low-temperature storage in the refrigerator.

[0369] In the fifth embodiment, the first hinge member is provided with a first mating portion at one end thereof far from the first body side wall. The end portion 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 manner, the second mating portion is located on the side of the second hinge member far from the door side wall 32.

[0370] 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 engaging portion gradually approaches the first engaging portion.

[0371] When the door body 30 is closed to the angle G B0 At this time, the second engaging portion abuts against the first engaging portion; then, under the action of the external force, the door body 30 continues to close, the first engaging portion and the second engaging portion interact with each other, the second engaging portion undergoes elastic deformation, and under the combined action of the external force and the acting force of the first engaging portion, the second engaging portion and the first engaging portion gradually approach each other, and the elastic deformation amount of the second engaging portion gradually increases.

[0372] When the door body 30 is closed to the angle G B1 At this time, the elastic deformation amount of the second engaging portion reaches the maximum deformation amount during the closing process of the door body 30.

[0373] When the door body 30 is closed to reach the angle G B1 After that, when it continues to move in the closing direction, the elastic energy stored in the previous deformation of the second engaging portion is released. Under the combined action of its acting force with the first engaging portion, the second engaging portion returns to the relaxed state and drives the door body 30 to quickly close automatically in place; until the door body 30 is closed, the second engaging portion and the first engaging portion are locked, realizing the locking of the door body 30 and the box body 10. Above, G B0 >G B1 As a settable method, G B0 Is set to any value between 15° and 20°, and G B1 Is set to any value between 3° and 8°. To sum up, when the door body 30 is closed to reach G B1 After that, under the interaction of the first engaging portion and the second engaging portion, the door body 30 can be automatically closed.

[0374] It should be noted that during the above closing process of the door body 30, the external force continues to act until the door body 30 is closed to G B1 After that, that is, after the door body 30 rotates and closes to the maximum elastic deformation amount of the second engaging portion, the external force is removed, and the door body 30 can automatically complete the flipping. And when the door body 30 is closed to G B1 After the external force is removed, the door body 30 has an inertial force, and the inertial force also has the characteristic of keeping the door body 30 in the original closing movement trend.

[0375] To sum up, when the door body 30 is closed from the angle G B0 To the angle G B1 During the process, under the combined action of the external force and the first engaging portion, the second engaging portion undergoes elastic deformation.

[0376] When the door body 30 is closed to G B1When the elastic deformation of the second engaging portion reaches the maximum deformation during the closing process of the door body 30.

[0377] During the process of the door body 30 moving from G B1 to the closed state, when the external force is removed, the elastic force of the second engaging portion is released, and the door body 30 quickly closes automatically.

[0378] That is, in the fifth embodiment, with the structural settings of the first engaging portion and the second engaging portion, during the process of the door body 30 moving from G B1 to the closed state, the door body 30 has the characteristic of automatic closing.

[0379] 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 fifth embodiment, during the process of the door body 30 moving from the closed state to Q2, the door body 30 moves outward. Correspondingly, during the closing process of the door body 30 from Q2 to the closed state, the door body 30 has a tendency to move inward.

[0380] As a settable method, G B1 > Q2. That is, during the automatic closing stage (during the process of continuing to close from G B1 ), during the process of closing from the angle Q2, the door body 30 has a tendency to move inward; the door body 30 moves inward, applying an inward acting force on the turning beam 9, and this acting force causes the turning beam to turn. Since in this embodiment, during the process of the door body 30 continuing to close from G B1 , it has the characteristic of automatic closing, and the door body 30 maintains the tendency to move inward, the inward acting force applied by the door body 30 moving inward on the turning beam 9 always exists, which can ensure that the turning beam 9 turns in place, making the door body 30 close in place, and avoiding cold leakage caused by the turning beam 9 not turning in place.

[0381] In some embodiments of the present application, referring to Figures 83-86 , the door body 30 includes a mounting block, and the mounting block is installed at a position on the door body 30 opposite to the hinge plate 40. A guiding portion 50, a guiding portion 60 and a second engaging portion are formed on the mounting block. The first engaging portion is formed on the side of the extending portion 402 of the hinge plate 40 away from the door side wall 32.

[0382] Specifically referring to Figures 83-86 , the door body 30 has a door end cap 38. In this embodiment, the mounting block provided at the lower end of the door body 30 is taken as an example for illustration. Combining 83 - Figure 86, a guiding groove is formed on the mounting block; wherein, the guiding groove includes a groove bottom and a circumferential groove wall surrounding the edge of the groove bottom. 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 cover 38, and a receiving groove 37 is formed on the door end cover 38 for fixedly mounting the mounting block. As an implementable way, the mounting block is placed in the receiving groove 37, and then the mounting block is fixedly connected to the door body 30 through a first fixing member. Specifically, the first fixing member can be set as a screw or the like.

[0383] As an implementable way, the mounting block includes a plate body 81, and the plate body 81 is arranged around the outer peripheral side wall of the guiding groove. In this embodiment, the first fixing member connecting the mounting block and the receiving groove 37 fixedly connects the plate body 81 and the door body 30. Optionally, a plurality of first fixing members are distributed around the guiding groove.

[0384] As an optional way, on the side of the bottom wall of the receiving groove 37 close to the door side wall 32, a first receiving portion recessed into the inner cavity of the door body 30 is formed, at least part of the guiding groove is received in the first receiving portion, and the groove bottom of the guiding groove cooperates with the inner wall of the first receiving portion; the plate body 81 cooperates with the bottom wall of the receiving groove 37 to effectively limit the position of the guiding groove.

[0385] As an optional way, 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 cooperates with the inner wall of the second receiving portion to limit the guiding groove.

[0386] In some embodiments of the present application, the second matching portion on the mounting block is set as a locking structure. Specifically, the second matching portion includes a locking hook 82 provided on the side of the plate body 81 away from the door side wall 32. The locking hook 82 extends away from the door side wall 32 and bends towards the side close to the door rear wall 33 and the door side wall 32. The opening of the locking hook 82 faces the plate body 81 (the opening of the locking hook 82 faces the door side wall 32), and the free end of the locking hook 82 is located on the side close to the door rear wall 33.

[0387] The first matching portion provided on the side of the hinge plate 40 away from the first body side wall is set as a stop portion 403, and a hooking gap 404 is formed on the side of the stop portion 403 close to the box body 10. When the door body 30 is in the closed state, the free end of the locking hook 82 is received in the hooking gap 404, the stop portion 403 is located inside the locking hook 82, and the locking hook 82 on the door body 30 hooks the stop portion 403 on the hinge plate 40, thereby locking the door body 30 to prevent the door body 30 from not closing tightly and affecting the refrigeration and freezing effect of the refrigerator; when the door body 30 is opened, the locking hook 82 is deformed by force to overcome the blocking of the stop portion 403, and thus disengages from the stop portion 403.

[0388] The locking hook 82 may include a root connecting portion 83 and a hooking portion 84. The root connecting portion 83 is connected to the plate body 81, and the hooking portion 84 is connected to the root connecting portion 83 and bends toward the side close to the door rear wall 33 and the door side wall 32. A screw passes through the root connecting portion 83 to be connected to the door body 30, so as to strengthen the connection strength between the root connecting portion 83 and the door body 30, so that only the hooking portion 84 deforms when the locking hook 82 disengages from the stopping portion 403.

[0389] It can be set that the free ends of the hooking portion 84 and the stopping portion 403 are both arc-shaped, which is beneficial for the hooking portion 84 to smoothly hook the stopping portion 403 or disengage from the stopping portion 403 along the arc.

[0390] As Figures 84-86 shown, when the door body 30 is closed from the open state, under the action of an external force, the door body 30 gradually closes; as the door body 30 rotates and closes, the free end of the hooking portion 84 gradually approaches the stopping portion 403. As Figure 85 shown, when the door body 30 is closed to G B0 time, the hooking portion 84 abuts against the stopping portion 403; then under the action of an external force, the door body 10 continues to close, the stopping 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 stopping portion 403, the moving hooking portion 82 gradually enters the hooking gap 404 (that is, the stopping portion 403 enters the hooking portion 84); as Figure 86 shown, when the door body 30 is closed to G B1 time, the elastic deformation amount of the hooking portion 84 reaches the maximum deformation amount during the closing process of the door body 30. When the door body 30 is closed to reach G B1 later, the elastic energy stored by the previous deformation of the hooking portion 82 is gradually released, and under the combined action with the acting force of the stopping portion 403, the hooking portion 82 returns to the relaxed state and drives the hooking portion 82 to further enter the hooking gap 404, so that the door body 30 quickly closes automatically in place until the door body 30 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, when the door body 30 is closed to reach G B1 later, the door body 30 has the characteristic of automatic closing.

[0391] Embodiment Six

[0392] As Figures 78-82As shown, the refrigerator in the sixth embodiment also includes two oppositely arranged door bodies 30, and the two oppositely 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 chamber of the refrigerator, and the flipping beam 9 can be slidably engaged with the guiding rail 91 to realize the switching of the flipping beam 9 at different angles relative to the door body 30. When the two door bodies 30 are closed, the flipping beam 9 closes the gap between the two door bodies 30 and the box body 10 to effectively prevent cold air from overflowing. Its setting method is the same as that of the fifth embodiment.

[0393] In addition, similar to the fifth embodiment, in the sixth embodiment, a first engaging portion and a second engaging 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. (The setting method is the same as that of the fifth embodiment)

[0394] And it satisfies G B1 > Q2. That is, during the process of the door body 30 automatically closing (during the process of continuing to close from G B1 ), the door body 30 has a tendency to move inward, which can ensure that the flipping beam 9 flips in place and the door body 30 closes in place.

[0395] Different from the fifth embodiment, as Figure 87 shown, the refrigerator in the sixth embodiment is applicable to the scenario of being embedded in a cabinet.

[0396] Specifically, different from the fifth embodiment, in combination with the setting of the hinge assembly in the second embodiment, the hinge assembly in the sixth embodiment has the overall movement characteristics of the first stage and the second stage in the second embodiment (see the second embodiment, which will not be elaborated here). That is, it can be set that the door body 30 moves outward in the first stage and then moves inward in the second stage during the opening process.

[0397] Specifically, in the sixth embodiment, when the door body 30 is opened from the closed state to Q2, the door body 30 first moves outwards. That is, when the door body 30 is closed from Q2, the door body has a tendency to move inwards. And when the door body 30 continues to open from Q2, it has a tendency to move inwards. With the above settings, on the one hand, during the closing process from the angle Q2, the door body 30 has a tendency to automatically close and move inwards, which can ensure that the turning beam 9 turns in place, making the door body 30 close in place and avoiding cold loss. On the other hand, during the opening process of the door body 30, after the door body 30 first moves outwards a certain distance, the door body 30 starts to move inwards from Q2, which can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, limiting the distance that the first side edge W exceeds the reference plane M0 not to exceed the distance between the cabinet and the side wall of the refrigerator body, effectively avoiding interference between the door body 30 and the cabinet 100 when the door 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. 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, making the maximum angle that the door body 30 of the refrigerator installed in the cabinet can open larger.

[0398] In some embodiments of the present application, Q2 belongs to any value among any values of 10° to 15°.

[0399] In summary, Embodiments 1 to 6 of the present invention illustrate the solution of the present invention from multiple perspectives; it should be noted that between the embodiments, the differences from the embodiments they mention are mainly described, and the similarities are not described in detail. It should be added that as the setting 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.

[0400] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described 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.

[0401] For ease of explanation, the foregoing has been described in connection with specific embodiments. However, the foregoing exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations are possible in light of the above teachings. The selection and description of the embodiments are made to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. Refrigerator, characterized in that, It includes: A box body that defines a storage room with an access opening and has a first body side wall and a second body side wall that are oppositely arranged; Two door bodies that are oppositely arranged on the box body; the door bodies have a front door wall that is far from the box body when the door bodies are closed, and a door side wall that is connected to the front door wall and far from the other door body; A flipping beam that is arranged at one end of one of the two oppositely arranged door bodies close to the other; A first engaging portion that is fixedly connected to the box body; A second engaging portion that is arranged at the end of the door body and close to the door side wall; the second engaging portion locks or unlocks with the first engaging portion to lock or unlock the door body and the box body; A hinge assembly that connects the door body and the box body to enable the door body to rotate relative to the box body; The hinge assembly includes: A first hinge shaft, a second hinge shaft, and a third hinge shaft that are fixed 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 far from the first body side wall; A guiding portion and a guiding part that are located at the end of the door body and close to the door side wall; the guiding portion defines a linear guiding trajectory line, and the guiding part defines a closed circular guiding trajectory line; wherein, the guiding trajectory line surrounds the guiding trajectory line; The centroid of the guiding trajectory line is denoted as guiding centroid O, and the guiding trajectory line surrounds its guiding centroid O; The guiding trajectory line includes a first guiding segment K1, a second guiding segment K2, a third guiding segment K3, a fourth guiding segment K4, a fifth guiding segment K5, and a sixth guiding segment K6 that are sequentially connected end to end; the first guiding segment K1, the second guiding segment K2, the third guiding segment K3, the fourth guiding segment K4, and the fifth guiding segment K5 all bulge away from the guiding centroid O; the sixth guiding segment K6 bulges towards the guiding centroid O to enable smooth transition connection between the fifth connection position e and the first connection position a; Wherein, the connection point of the sixth guiding segment K6 and the first guiding segment K1 is denoted as the first connection position a; the connection points 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, and the sixth guiding segment K6 that are sequentially connected are sequentially denoted as the second connection position b, the third connection position c, the fourth connection position d, the fifth connection position e, and the sixth connection position f; In the projection on the plane where the front door wall is located, the second connection position b, the third connection position c, the first connection position a, the sixth connection position f, the fourth connection position d, and the fifth connection position e are sequentially far from the door side wall; In the projection on the plane where the door side wall is located, the fourth connection position d, the third connection position c, the second connection position b, the first connection position a, the sixth connection position f, and the fifth connection position e are sequentially far from the front door wall; During the process of the door body being closed at an angle Q2, the second engaging portion cooperates with the first engaging portion to drive the door body to move in the closing direction; the first hinge shaft moves linearly along the guiding track line relative to the guiding portion in a direction close to the door side wall and away from the front wall of the door; the second hinge shaft and the third hinge shaft both move relative to the guiding portion, the door body opens the access opening and moves inward a certain distance, and drives the flipping beam to flip.

2. The refrigerator according to claim 1, wherein: In the projection on the plane of the top wall of the cabinet, on the side of the cabinet close to the door body, a displacement coordinate system AOB is established; wherein, in the displacement coordinate system AOB, OB is perpendicular to the plane where the access opening is located, and the direction from the access opening to the front wall of the door when the door is closed is positive; OA is parallel to the plane where the access opening is located, and the direction from the second side wall of the body to the first side wall of the body is positive; the displacement coordinate system AOB is a coordinate system stationary relative to the cabinet; The door body has a door rear wall opposite to the front wall of the door; The door body has a second-direction displacement along a direction parallel to the door rear wall and a third-direction displacement parallel to the door side wall The second-direction displacement The component displacement on the A axis is The component displacement on the B axis is The third-direction displacement The component displacement on the A axis is The component displacement on the B axis is During the process of the door body closing at an angle Q2, the displacement in the second direction is parallel to the direction of the rear wall of the door and points to the side away from the side wall of the door, and the displacement in the third direction is parallel to the side wall of the door and points to the front wall of the door; Among them, 3. The refrigerator according to any one of claims 1-2, characterized in that: The central axis of the first hinge shaft is denoted as the first central axis I, the central axis of the second hinge shaft is denoted as the second central axis E, and the central axis of the third hinge shaft is denoted as the third central axis F; In the projection on the plane of the top wall of the cabinet, the first central axis I, the second central axis E and the third central axis F form an axis triangle IEF; wherein, the axis triangle IEF is an obtuse triangle, and ∠FIE is an obtuse angle.

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

5. The refrigerator according to claim 3, characterized in that: In the projection on the plane of the top wall of the cabinet, the longest side EF of the axis triangle IEF is located on the side of the vertex I of the axis triangle IEF away from the access opening.

6. The refrigerator according to claim 3, characterized in that: In the projection on the plane of the top wall of the cabinet, 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.

7. The refrigerator according to claim 1 or 2 or 4 or 5 or 6, characterized in that: Along the direction from the wall surface of the door body opposite to the front wall of the door to the front wall of the door, the distance between the guiding track line and the door side wall increases linearly; the included angle between the guiding track line and the front wall of the door belongs to any value in the range of 58° to 88°.

8. The refrigerator according to claim 1 or 2 or 4 or 5 or 6, wherein: The door body has a door rear wall opposite to the front wall of the door; the door rear wall and the door side wall intersect to form a second side edge N; A door seal is provided on the door rear wall; when the door body is closed, the door seal fits against the front end surface of the cabinet surrounding the access opening; the door seal includes a side seal edge H close to the door side wall and away from the front wall of the door; The plane where the access opening is located is denoted as the second reference plane M2; the plane where the second side wall of the body is located is denoted as the first reference plane M1, and the first reference plane M1 is perpendicular to the second reference plane M2; the first reference plane M1 and the second reference plane M2 remain stationary relative to the cabinet during the opening process of the door body relative to the cabinet; 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 towards the directions close to the first reference plane M1 and the second reference plane M2, and then moves towards the direction close to the first reference plane M1 and away from the second reference plane M2; The side sealing edge H first moves towards the directions 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.

9. The refrigerator according to claim 1 or 2 or 4 or 5 or 6, characterized in that: The plane passing through the centroid of the door body and parallel to the front wall of the door is denoted as the centroid plane P; During the process of the door body being opened, the centroid plane P remains stationary relative to the door body; During the process of the door body being opened from the closed state to the angle G`1, the centroid plane P is located on the side of the first hinge axis, the second hinge axis, and the third hinge axis away from the front wall of the door; The door body is opened from the angle G`1 to the maximum angle G that the door body can reach max During the process, the centroid plane P is located between the first hinge axis and the third hinge axis, and on the side of the first hinge axis away from the second hinge axis; wherein, G`1: G max belongs to any value in the range of 0.8 to 1.

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