refrigerator

Abstract

This invention proposes a refrigerator comprising a cabinet, a hinge assembly, and a door. The hinge assembly includes a guide portion and a guide portion located at the end of the door, a first hinge shaft, a second hinge shaft, and a third hinge shaft fixed to the cabinet. The guide portion defines a straight guide trajectory line extending from its end near the door sidewall and front wall away from them. The guide portion defines a closed-loop guide trajectory line surrounding the guide trajectory line. The second hinge shaft, the first hinge shaft, and the third hinge shaft sequentially move away from the door sidewall. During the opening process from a closed state, the first hinge shaft moves relative to the guide portion along the guide trajectory line in a straight line inclined to the door sidewall, while the second and third hinge shafts move relative to the guide portion. The door opens its access opening and moves laterally a certain distance. This invention's refrigerator allows the door to undergo a certain lateral displacement when opened, thus meeting application requirements.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more particularly to a refrigerator. Background Technology

[0002] The refrigerator door is connected to the refrigerator body via a hinge assembly. This hinge assembly allows the refrigerator door to be rotatably attached to the refrigerator body, thus opening or closing the refrigerator's access hatch. In specific usage scenarios or structural settings, the door needs to undergo a certain lateral displacement during opening, that is, it needs to move inward or outward a certain distance to meet application requirements. Summary of the Invention

[0003] This invention at least partially solves one of the technical problems in the related art.

[0004] Therefore, this application aims to provide a refrigerator whose hinge structure causes the door to shift laterally when opened.

[0005] The refrigerator according to this application includes:

[0006] The container defines a storage compartment with an access opening and has a first body sidewall and a second body sidewall disposed opposite to each other.

[0007] A door body, which is connected to the housing via a hinge assembly, to open or close the loading / unloading port; the door body has a front wall away from the housing when the door body is closed, and a side wall connected to the front wall and close to the hinge assembly;

[0008] The hinge assembly includes:

[0009] The first hinge shaft, the second hinge shaft, and the third hinge shaft are fixed to the housing and close to the side wall of the first body; the second hinge shaft, the first hinge shaft, and the third hinge shaft are sequentially moved away from the side wall of the first body.

[0010] A guide portion and a guide section are located at the end of the door body and close to the side wall of the door; the guide portion defines a straight guide trajectory line, the guide trajectory line extending from one end close to the side wall and front wall of the door in a direction away from the side wall and front wall of the door; the guide section defines a closed loop guide trajectory line, the guide trajectory line surrounding the guide trajectory line;

[0011] The arrangement direction of the first body sidewall and the second body sidewall is defined as transverse;

[0012] During the opening process of the door from the closed state, the first hinge axis moves in a straight line with the guide trajectory line inclined to the side wall of the door relative to the guide part, and the second hinge axis and the third hinge axis both move relative to the guide part. The door opens the pick-up and put-out port and moves a certain distance laterally.

[0013] In some embodiments of the refrigerator of this application, the central axis of the first hinge axis is denoted as the first central axis I, the central axis of the second hinge axis is denoted as the second central axis E, and the central axis of the third hinge axis is denoted as the third central axis F;

[0014] In the projection of the plane containing the top wall of the box, the first central axis I, the second central axis E, and the third central axis F form an axial triangle IEF; wherein the axial triangle IEF is an obtuse triangle, and ∠FIE is an obtuse angle.

[0015] In some embodiments of the refrigerator in this application, ∠FIE belongs to any value between 172° and 178°.

[0016] In some embodiments of the refrigerator of this application, in the projection of the plane containing the top wall of the cabinet, the longest side EF of the axial triangle IEF is located on the side of the vertex I of the axial triangle IEF away from the pick-up and put-out opening.

[0017] In some embodiments of the refrigerator of this application, in the projection of the plane where the top wall of the cabinet is located, the straight line IE where the first central axis I and the second central axis E are located is parallel to the take-up and put-out port, 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 take-up and put-out port.

[0018] In some embodiments of the refrigerator of this application, the angle between the guide trajectory line and the front wall of the door is denoted as θ; θ belongs to any value between 20° and 45°;

[0019] When the door is opened, the first hinge axis moves in a straight line along the guide trajectory line, tilted relative to the front wall of the door.

[0020] In some embodiments of the refrigerator of this application, the guide trajectory line includes a first guide segment K1, a second guide segment K2, a third guide segment K3, a fourth guide segment K4, a fifth guide segment K5, a sixth guide segment K6, and a seventh guide segment K7 connected end to end in sequence.

[0021] Wherein, the connection point between the seventh guide segment K7 and the first guide segment K1 is denoted as the first connection position a; the connection points where the first guide segment K1, the second guide segment K2, the third guide segment K3, the fourth guide segment K4, the fifth guide segment K5, the sixth guide segment K6, and the seventh guide segment K7 are connected in sequence are denoted as the second connection position b, the third connection position c, the fourth connection position d, the fifth connection position e, the sixth connection position f, and the seventh connection position g, respectively.

[0022] In the projection of the plane where the front wall of the door is located, the seventh connection position g, the first connection position a, the second connection position b, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are sequentially moved away from the side wall of the door.

[0023] In the projection of the plane containing the side wall of the door, the second connection position b, the third connection position c, the fourth connection position d, the first connection position a, the fifth connection position e, the seventh connection position g, and the sixth connection position f are sequentially moved away from the front wall of the door.

[0024] In some embodiments of the refrigerator of this application, the door has a rear wall disposed opposite to the front wall; the rear wall intersects with the side wall to form a second side edge N;

[0025] The plane containing the retrieval and placement opening is designated as the second reference plane M2; the plane containing the second body sidewall is designated as the first reference plane M1, and the first reference plane M1 is perpendicular to the second reference plane M2; the first reference plane M1 and the second reference plane M2 remain stationary relative to the box body during the opening process of the door body relative to the box body.

[0026] In the projection of the plane where the top wall of the box is located, during the process of the door opening from the closed state, the second side edge N first moves towards the first reference plane M1 and the second reference plane M2, and then moves towards the first reference plane M1 and away from the second reference plane M2.

[0027] The door is opened to its maximum angle G. max During the process, the trajectory of the second side edge is an arc.

[0028] In some embodiments of the refrigerator of this application, a door seal is provided on the rear wall of the door; when the door is closed, the door seal is in contact with the front face of the cabinet surrounding the access opening; the door seal includes a side sealing edge H close to the side wall of the door and away from the front wall of the door;

[0029] In the projection of the plane containing the top wall of the box, during the process of opening the door from the closed state, the side sealing edge H first moves towards the first reference plane M1 and the second reference plane M2, and then moves towards the first reference plane M1 and away from the second reference plane M2.

[0030] The door is opened to its maximum angle G. max During the process, the movement trajectory of the side sealing edge H is an arc.

[0031] In some embodiments of the refrigerator of this application, the center of the circle containing the motion trajectory of the arc-shaped second side edge within the plane of the top wall of the cabinet is denoted as the center O of the second side edge. N The center of the circle containing the trajectory of the arc-shaped side sealing edge is denoted as the center O of the side sealing edge. H ;

[0032] Wherein, the radius of the circle containing the motion trajectory of the second side edge is smaller than the radius of the circle containing the motion trajectory of the side sealing edge;

[0033] The central axis of the first hinge shaft, the center O of the second side edge N Side sealing edge center O H Sequentially moving away from the sidewall of the first body; and the center O of the side sealing edge H The central axis of the first hinge axis, and the center O of the second side edge. N Move away from the plane where the pick-up and drop-off port is located in sequence.

[0034] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0035] This invention proposes a refrigerator comprising a cabinet, a hinge assembly, and a door. The hinge assembly includes a guide portion and a guide portion located at the end of the door, a first hinge shaft, a second hinge shaft, and a third hinge shaft fixed to the cabinet. The guide portion defines a straight guide trajectory line extending from its end near the door sidewall and front wall away from them. The guide portion defines a closed-loop guide trajectory line surrounding the guide trajectory line. The second hinge shaft, the first hinge shaft, and the third hinge shaft sequentially move away from the door sidewall. During the opening process from a closed state, the first hinge shaft moves relative to the guide portion along the guide trajectory line in a straight line inclined to the door sidewall, while the second and third hinge shafts move relative to the guide portion. The door opens its access opening and moves laterally a certain distance. This invention's refrigerator allows the door to undergo a certain lateral displacement when opened, thus meeting application requirements. Attached Figure Description

[0036] Figure 1 This is a perspective view of the refrigerator according to Embodiment 1 of the present invention;

[0037] Figure 2 yes Figure 1 A partial structural diagram showing the engagement of the first hinge component and the second hinge component when the door is closed;

[0038] Figure 3This is a schematic diagram of the structure of the first hinge component in the refrigerator embodiment of the present invention;

[0039] Figure 4 This is a structural schematic diagram of the first hinge component in the refrigerator of the present invention from another perspective;

[0040] Figure 5 This is a schematic diagram showing the relative positions of the door corners when the door is closed in Embodiment 1 of the refrigerator of the present invention;

[0041] Figure 6 This is a schematic diagram showing the relative positions of the door corners when the door is opened to its maximum angle in Embodiment 1 of the refrigerator of the present invention;

[0042] Figure 7 This is a view of the hinge assembly when the door of the refrigerator in Embodiment 1 of the present invention is opened to φ=0°;

[0043] Figure 8 This is a view of the hinge assembly when the door of the refrigerator in Embodiment 1 of the present invention is opened to φ=G1;

[0044] Figure 9 This is a view of the hinge assembly when the door of the refrigerator in Embodiment 1 of the present invention is opened to φ=G2;

[0045] Figure 10 This is a view of the hinge assembly when the door of the refrigerator in Embodiment 1 of the present invention is opened to φ=G3;

[0046] Figure 11 This is a view of the hinge assembly when the door of the refrigerator in Embodiment 1 of the present invention is opened to φ=G4;

[0047] Figure 12 This is a view of the hinge assembly when the door of the refrigerator in Embodiment 1 of the present invention is opened to φ=G5;

[0048] Figure 13 This is a view of the hinge assembly when the door of the refrigerator in Embodiment 1 of the present invention is opened to φ=G6;

[0049] Figure 14 This is a view of the hinge assembly when the door of the refrigerator in Embodiment 1 of the present invention is opened to φ=G7;

[0050] Figure 15 This is a view of the hinge assembly when the door of the refrigerator in Embodiment 1 of the present invention is opened to φ=G8;

[0051] Figure 16 This is a view of the hinge assembly when the door of the refrigerator in Embodiment 1 of the present invention is opened to φ=G9;

[0052] Figure 17 In the refrigerator embodiment of the present invention, the door is opened to φ=G. 10 View of the hinge component;

[0053] Figure 18 This is a schematic diagram showing the movement of the first side edge, the second side edge, and the side sealing edge during the opening process of the refrigerator in Embodiment 1 of the present invention;

[0054] Figure 19 In the refrigerator embodiment of the present invention, the door changes from the closed state to G. 10 A schematic diagram showing the positions of the first hinge axis relative to the guide, the second hinge axis, and the third hinge axis relative to the guide when the hinge is opened to different angles during the opening process;

[0055] Figure 20 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to different angles during the process of opening from the closed state to G2 in the refrigerator embodiment 1 of the present invention.

[0056] Figure 21 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened from G2 to G5 in Embodiment 1 of the refrigerator of the present invention, at different angles.

[0057] Figure 22 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened from G5 to G7 in Embodiment 1 of the refrigerator of the present invention, at different angles.

[0058] Figure 23 In the refrigerator embodiment of the present invention, the door body is from G7 to G... 10 A schematic diagram showing the positions of the first hinge axis relative to the guide, the second hinge axis, and the third hinge axis relative to the guide when the hinge is opened to different angles during the opening process;

[0059] Figure 24 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=G1 in Embodiment 1 of the refrigerator of the present invention.

[0060] Figure 25 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=G2 in Embodiment 1 of the refrigerator of the present invention.

[0061] Figure 26 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=G3 in Embodiment 1 of the refrigerator of the present invention.

[0062] Figure 27 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=G4 in Embodiment 1 of the refrigerator of the present invention.

[0063] Figure 28 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=G5 in Embodiment 1 of the refrigerator of the present invention.

[0064] Figure 29 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=G6 in Embodiment 1 of the refrigerator of the present invention.

[0065] Figure 30 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=G7 in Embodiment 1 of the refrigerator of the present invention.

[0066] Figure 31 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=G8 in Embodiment 1 of the refrigerator of the present invention.

[0067] Figure 32 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=G9 in Embodiment 1 of the refrigerator of the present invention.

[0068] Figure 33 In the refrigerator embodiment of the present invention, the door is opened to φ=G. 10 A schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, the second hinge axis, and the third hinge axis relative to the guide portion;

[0069] Figure 34 This is a simplified schematic diagram illustrating the relative positions of the door and the refrigerator body when the door is closed, according to Embodiment 1 of the present invention.

[0070] Figure 35 This is a simplified schematic diagram of the relative position of the door and the refrigerator body when the door opening angle is less than G2 in Embodiment 1 of the present invention;

[0071] Figure 36 This is a simplified schematic diagram of the relative positions of the door and the refrigerator body when the door opening angle is greater than G2 and less than G5 in Embodiment 1 of the present invention.

[0072] Figure 37 In the refrigerator embodiment of the present invention, the door opening angle is greater than G5 and less than G. 90A simplified diagram illustrating the relative positions of the door and the housing.

[0073] Figure 38 This is a simplified schematic diagram of the relative position of the door and the refrigerator body when the door opening angle is 90° in Embodiment 1 of the present invention;

[0074] Figure 39 In the refrigerator embodiment of the present invention, the door opening angle is greater than 90° and less than G. 10 A simplified diagram illustrating the relative positions of the door and the housing.

[0075] Figure 40 This is a comparison diagram of the position of the refrigerator door when it is opened to G1 in Embodiment 1 of the present invention and the position of the door when it is rotated from the closed state to G1 with its first central axis I as the rotation axis when it is closed;

[0076] Figure 41 This is a comparison diagram of the position of the refrigerator door when it is opened to G2 in Embodiment 1 of the present invention and the position of the refrigerator door when it is opened to G1 and rotated to G2 with the first central axis I of the refrigerator door when it is opened to G1 as the rotation axis.

[0077] Figure 42 This is a comparison diagram of the position of the refrigerator door when it is opened to G3 in Embodiment 1 of the present invention and the position of the refrigerator door when it is opened to G2 and rotated to G3 with the first central axis I when it is opened to G2 as the rotation axis;

[0078] Figure 43 This is a comparison diagram of the position of the refrigerator door when it is opened to G4 in Embodiment 1 of the present invention and the position of the refrigerator door when it is opened to G3 and rotated to G4 with the first central axis I when it is opened to G3 as the rotation axis;

[0079] Figure 44 This is a comparison diagram of the position of the refrigerator door when it is opened to G5 in Embodiment 1 of the present invention and the position of the refrigerator door when it is opened to G4 and rotated to G5 with the first central axis I when it is opened to G4 as the rotation axis;

[0080] Figure 45 This is a comparison diagram of the position of the refrigerator door when it is opened to G6 in Embodiment 1 of the present invention and the position of the door when it is opened to G5 and rotated to G2 with the first central axis I of the door when it is opened to G5 as the rotation axis;

[0081] Figure 46 This is a comparison diagram of the position of the refrigerator door when it is opened to G7 and the position of the refrigerator door when it is opened to G6 and rotated to G2 with the first central axis I when it is opened to G6 as the rotation axis;

[0082] Figure 47 This is a comparison diagram of the refrigerator of the present invention in embodiment 1 when the door is opened to G8 and when the door is opened to G7 and rotated to G3 with the first central axis I of the door opened to G7 as the rotation axis;

[0083] Figure 48 This is a comparison diagram of the position of the refrigerator door when it is opened to G9 in Embodiment 1 of the present invention and the position of the refrigerator door when it is opened to G8 and rotated to G4 with the first central axis I when it is opened to G8 as the rotation axis;

[0084] Figure 49 In the refrigerator embodiment of the present invention, the door is opened to G. 10 A comparison diagram of the position when the door is open to state G9 and the position when it is rotated to state G5 with the first central axis I as the rotation axis when it is open to state G9.

[0085] Figure 50 This is a top view of the refrigerator in Embodiment 2 of the present invention;

[0086] Figure 51 yes Figure 50 A partial structural diagram of the joint between the two doors when the door is closed;

[0087] Figure 52 This is a schematic diagram of the cooperation of the two side sealing strips when the door of the refrigerator in Embodiment 2 of the present invention is closed;

[0088] Figure 53 This is a schematic diagram showing the relative positions of the two side sealing strips when the refrigerator door begins to open, according to Embodiment 2 of the present invention.

[0089] Figure 54 This is a top view of the refrigerator relative to the cabinet in Embodiment 3 of the present invention;

[0090] Figure 55 This is a perspective view of the refrigerator in Embodiment 4 of the present invention;

[0091] Figure 56 This is a schematic diagram showing the relative position of the flip beam and the refrigerator body from another perspective when the door is opened in Embodiment 4 of the refrigerator of the present invention;

[0092] Figure 57 This is a top view of the refrigerator in Embodiment 4 of the present invention;

[0093] Figure 58 In the refrigerator embodiment four of the present invention, the door is closed to G. S A schematic diagram showing the relative positions of the door body, guide block, and guide groove;

[0094] Figure 59 In the refrigerator embodiment four of the present invention, the door is closed to G. F A schematic diagram showing the relative positions of the door body, guide block, and guide groove;

[0095] Figure 60 This is an exploded structural diagram of the mounting block and the end of the door in Embodiment 4 of the refrigerator of the present invention;

[0096] Figure 61 This is a schematic diagram of the structure of the first mating part and the second mating part when the door is closed in Embodiment 4 of the refrigerator of the present invention;

[0097] Figure 62 This is a schematic diagram of the structure of the refrigerator in Embodiment 4 of the present invention when the door closes from an open position to the point where the first mating part contacts the second mating part;

[0098] Figure 63 This is a schematic diagram of the structure of the refrigerator in Embodiment 4 of the present invention when the door closes from an open position to the point where the interaction between the first mating part and the second mating part causes the elastic deformation of the second mating part to reach its maximum.

[0099] Figure 64 This is a top view of the refrigerator relative to the cabinet in Embodiment 5 of the present invention.

[0100] Figure 65 This is a perspective view of the refrigerator in Embodiment Six of the present invention;

[0101] Figure 66 This is a top view of the refrigerator in Embodiment Six of the present invention;

[0102] Figure 67 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=0° in Embodiment 2 of the refrigerator of the present invention.

[0103] Figure 68 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=Q1 in Embodiment 2 of the refrigerator of the present invention.

[0104] Figure 69 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=Q2 in Embodiment 2 of the refrigerator of the present invention.

[0105] Figure 70 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=Q3 in Embodiment 2 of the refrigerator of the present invention.

[0106] Figure 71 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=Q4 in Embodiment 2 of the refrigerator of the present invention.

[0107] Figure 72This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=Q5 in Embodiment 2 of the refrigerator of the present invention.

[0108] Figure 73 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=Q6 in Embodiment 2 of the refrigerator of the present invention.

[0109] Figure 74 In the second embodiment of the refrigerator of the present invention, the door is opened to φ=Q. 8` A schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, the second hinge axis, and the third hinge axis relative to the guide portion;

[0110] Figure 75 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=Q7 in Embodiment 2 of the refrigerator of the present invention.

[0111] Figure 76 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to φ=Q8 in Embodiment 2 of the refrigerator of the present invention.

[0112] Figure 77 This is a schematic diagram showing the positions of the first hinge axis relative to the guide portion, the second hinge axis, the second hinge axis, and the third hinge axis relative to the guide portion when the door is opened to different angles during the process of opening from the closed state to Q8 in the refrigerator embodiment 2 of the present invention.

[0113] Figure 78 This is a comparison diagram of the position of the refrigerator door when it is opened to Q1 in Embodiment 1 of the present invention and the position of the door when it is rotated from the closed state to Q1 with its first central axis I as the rotation axis when it is closed;

[0114] Figure 79 This is a comparison diagram of the position of the refrigerator door when it is opened to Q2 in Embodiment 1 of the present invention and the position of the refrigerator door when it is opened to Q1 and rotated to Q2 with the first central axis I of the refrigerator door when it is opened to Q1 as the rotation axis;

[0115] Figure 80 This is a comparison diagram of the position of the refrigerator door when it is opened to Q3 in Embodiment 1 of the present invention and the position of the refrigerator door when it is opened to Q2 and rotated to Q3 with the first central axis I when it is opened to Q2 as the rotation axis;

[0116] Figure 81 This is a comparison diagram of the position of the refrigerator door when it is opened to Q4 in Embodiment 1 of the present invention and the position of the refrigerator door when it is opened to Q3 and rotated to Q4 with the first central axis I when it is opened to Q3 as the rotation axis;

[0117] Figure 82 This is a comparison diagram of the position of the refrigerator door when it is opened to Q5 and the position of the refrigerator door when it is opened to Q4, with the first central axis I of the refrigerator door when it is opened to Q4 as the rotation axis, when it is rotated to Q5.

[0118] Figure 83 This is a comparison diagram of the refrigerator of the present invention in embodiment 1 when the door is opened to Q6 and when the door is opened to Q5 and rotated to Q2 with the first central axis I of the door open to Q5 as the rotation axis;

[0119] Figure 84 In the refrigerator embodiment of the present invention, the door is opened to Q. 8` A comparison diagram of the position when the door is open to state Q6 and the position when it is rotated to state Q2 with the first central axis I as the rotation axis when it is open to state Q6;

[0120] Figure 85 The position of the door when it is opened to Q7 in Embodiment 1 of the refrigerator of the present invention is the same as the position of the door when it is opened to Q7. 8` The state is opened to Q 8` The first central axis I is a comparison diagram of the position when the rotation axis rotates to Q2;

[0121] Figure 86 This is a comparison diagram of the position of the refrigerator door when it is opened to Q8 and the position of the refrigerator door when it is opened to Q7 and rotated to Q2 with the first central axis I when it is opened to Q7 as the rotation axis;

[0122] In the above figures: Box body 10; Cabinet 100; Door 30; Front wall of door 31; Side wall of door 32; Rear wall of door 33; First side edge W; Second side edge N; Receiving groove 37; Door end cover 38; Centroid plane P; Door seal 5; Side sealing edge H; Hinge plate 40; Connecting part 401; Extension part 402; Stop part 403; Hook gap 404; First extension plate 4021; Second extension plate 4022; First hinge axis 41; Second hinge axis 42; Third hinge axis 43; First central axis I; Second central axis E; Third central axis F; Guide part 50; Guide trajectory line S; First guide position I1; Second guide position I2; Three guide positions I3; Fourth guide position I4; Fifth guide position I5; Sixth guide position I6; Guide section 60; Guide trajectory line K; First guide segment K1; Second guide segment K2; Third guide segment K3; Fourth guide segment K4; Fifth guide segment K5; Sixth guide segment K6; Seventh guide 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 sealing strip 3; Plate 81; Lock hook 82; Root connection 83; Hook 84; Door corner 7; Top plate 71; Side plate 72; Receiving space 70; Flip beam 9; Guide block 90; Guide rail 91. Detailed Implementation

[0123] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0124] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0125] The terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," "third," "fourth," or "fifth" may explicitly or implicitly include one or more of that feature.

[0126] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0127] In the following description, embodiments of this application will be described in detail with reference to the accompanying drawings. In the drawings, the side of the refrigerator facing the user when in use is defined as the front side, and the opposite side is defined as the rear side.

[0128] Example 1

[0129] Reference Figure 1 The refrigerator includes a cabinet 10 having a storage compartment, a door 30 connected to the cabinet 10 for opening and closing the storage compartment, and a refrigeration unit for supplying cold air to the storage compartment. The cabinet 10 includes an inner liner defining the storage compartment, an outer shell connected to the outside of the inner liner to form the appearance of the refrigerator, and an insulation layer disposed between the inner liner and the outer shell to insulate the storage compartment.

[0130] The cabinet 10 defines multiple storage compartments. In this embodiment, the multiple storage compartments include a refrigerator compartment and a freezer compartment located below the refrigerator compartment; it should be noted that the arrangement of multiple storage compartments in the refrigerator is not limited to the example described above.

[0131] The front end of the storage compartment has an access opening for placing food into or retrieving food from the storage compartment; the cabinet 10 is provided with a rotatable door 30 to open or close the access opening of the storage compartment. Specifically, the door 30 is rotatably connected to the cabinet 10 via upper and lower hinge assemblies to open or close the access opening.

[0132] Specifically, in this embodiment, the housing 10 includes a first side wall and a second side wall (i.e., the left side wall and the right side wall of the housing 10) disposed opposite to each other; wherein, the door 30 has a front wall 31 that is away from the housing 10 when the door 30 is closed, a rear wall 33 disposed opposite to the front wall 31, and a side wall 32 that is close to the hinge assembly and connected to the front wall 31. The arrangement direction of the first side wall and the second side wall is defined as transverse; that is, the direction from the first side wall to the second side wall or the direction from the second side wall to the first side wall is transverse; it is also equivalent to the normal direction of the first side wall being transverse.

[0133] In this design, the front wall 31 and the side wall 32 of the door 30 intersect to form a first side edge W, and the side wall 32 intersects with the rear wall 33 to form a second side wall N. When the door 30 is closed, the first side edge W is located on the side of the second side edge N that is furthest from the housing 10. It should be noted that the intersection line of the front wall 31 and the side wall 32 is theoretically the first side edge W (similarly, the theoretical second side edge N is the intersection line of the side wall 32 and the rear wall 33); in actual production and processing, the intersection of the front wall 31 and the side wall 32 is rounded, thus forming a 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 30 on the curved surface at the intersection of the front wall 31 and the side wall 32 can represent the first side edge W (the same applies to the second side edge N). For ease of description, this application uses the theoretical first side edge W and the theoretical second side edge N to illustrate the movement trend of the first side edge W or the second side edge N during the opening of the door 30. Furthermore, a plane passing through the center of mass of the door 30 and parallel to the front wall 31 is denoted as the center of mass plane P; during the opening of the door 30, the center of mass plane P moves with the door 30, while remaining stationary relative to the door. In this embodiment, the center of mass plane P, determined by the geometric center of the door 30, is used for description.

[0134] A door seal 5 is provided on the rear wall of the door 30. When the door 30 is closed, the door seal 5 fits against the front face of the housing 10 surrounding the access opening, effectively sealing the connection between the door 30 and the housing 10, thereby ensuring that the door 30 seals the access opening and preventing cold air from escaping. Optionally, the door seal 5 can be ring-shaped. The door seal 5 includes a side seal near the door side wall 32, and the edge of the door seal 5 (side seal) near the door side wall 32 and away from the front wall 31 is denoted as the side seal edge H.

[0135] The hinge assembly includes a first hinge member and a second hinge member. The first hinge member and the second hinge member cooperate and are capable of relative rotation. The first hinge member is disposed on the housing 10 and near the side wall of the first body. The second hinge member is disposed on the end of the door 30 near the first hinge member. The first hinge member and the second hinge member cooperate to allow the housing 10 and the door 30 to rotate relative to each other. The second hinge member is close to the door side wall 32 of the door 30; for example, when the first hinge member is located on the right side of the housing 10, the right side of the door 30 is the door side wall 32 when the door is closed; when the first hinge member is located on the left side of the housing 10, the left side of the door 30 is the door side wall 32 when the door is closed.

[0136] Reference Figures 2 to 4 The first hinge component 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 housing 10 and an extension portion 402 extending forward from the connecting portion 401 and in a horizontal plate shape. The connecting portion 401 can be fastened to the top wall of the housing 10 by fasteners such as screws, pins, and bolts. Specifically, for the hinge at the upper end of the door 30, the connecting portion 401 is connected to the top wall of the housing 10. For the hinge at the lower end of the door 30, the connecting portion 401 is connected to the front end face of the housing 10. The extension portion 402 of the first hinge component has a first hinge shaft 41, a second hinge shaft 42, and a third hinge shaft 43 formed thereon; wherein the second hinge shaft 42 is located on the side of the first hinge shaft 41 closer to the first body sidewall, and the third hinge shaft 43 is located on the side of the first hinge shaft 41 away from the first body sidewall.

[0137] The second hinge component includes a guide portion 50 and a guide portion 60 located on the door body 30 near the end of the first hinge component; wherein, the first hinge shaft 41 is adapted to the guide portion 50, and the second hinge shaft 42 and the third hinge shaft 43 are both adapted to the guide portion 60; during the process of the door body 30 rotating to open or close, the first hinge shaft 41 moves relative to the guide portion 50, and the second hinge shaft 42 and the third hinge shaft 43 both move relative to the guide portion 60.

[0138] In this embodiment, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are formed on the extension 402 connected to the housing 10 via the connecting portion 401 to form limiting shafts that guide the movement of the door 30. Specifically, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 extend in the vertical direction (the height direction of the housing 10) to adapt to the guide portion 50 or the guide portion 60 provided on the door 30.

[0139] In this embodiment, the following example is used: a first hinge shaft 41, a second hinge shaft 42, and a third hinge shaft 43 are provided on the extensions 402 at both the upper and lower ends of the door body 30, and a guide portion 50 and a guide portion 60 are provided at both the upper and lower ends of the door body 30. It should be noted that the arrangement in this embodiment is not limited to being provided at both the upper and lower ends of the door body 30 simultaneously; it is arranged as needed to connect the door body 30 and the housing 10.

[0140] In this embodiment, as Figures 2-6 As shown, the plane containing the side of the housing 10 closest to the hinge plate 40 (the first body sidewall) is defined as the reference plane M0. The side of the reference plane M0 furthest from the storage chamber is called the outer side; conversely, the side of the reference plane M0 closest to the storage chamber is called the inner side. Figure 2 As shown, in some embodiments of this application, in the projection of the plane where the top wall of the housing 10 is located, the straight line containing the central axis of the first hinge shaft 41 and the central axis of the second hinge shaft 42 is perpendicular to the side wall of the first body; that is, in the projection of the plane where the top wall of the housing 10 is located, the straight line containing the central axis of the first hinge shaft 41 and the central axis of the second hinge shaft 42 is parallel to the plane where the pick-up and put-out port is located; so that the positioning of the hinge shaft can be detected, ensuring processing accuracy, thereby ensuring assembly accuracy and increasing the smoothness of the door 30 rotating and opening.

[0141] In this embodiment, the trajectory line of the relative movement of the central axis of the first hinge shaft 41 guided by the guide part 50 is denoted as the guide trajectory line S, and the trajectory line of the relative movement of the second hinge shaft 42 guided by the guide part 60 is denoted as the guide trajectory line K; the centroid of the guide trajectory line K is denoted as the guide centroid O. In this embodiment, the guide trajectory line K surrounds its guide centroid O. In this embodiment, the guide trajectory line S is a straight line, and the guide trajectory line K is a loop; that is, during the opening of the door 30, the guide part 50 guides the movement of the first hinge shaft 41, thereby causing the central axis of the first hinge shaft 41 to move in a straight line along the guide trajectory line S, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guide part 60 and move relative to the guide trajectory line K.

[0142] In some embodiments of this application, the guide trajectory line S extends in a straight line from one end near the door side wall 32 and the front wall 31 away from the door side wall 32 and the front wall 31. The angle between the guide trajectory line S and the front wall 31 is denoted as θ; θ is any value between 20° and 45°. It can be set to θ = 30°. This angle setting of θ allows control of the instantaneous displacement direction of the door 30 during the opening process through the cooperation of the guide part 50 and the first hinge shaft 41, thereby controlling the lateral displacement of the door 30 relative to the housing 10. During the opening process of the door 30, the first hinge shaft 41 moves relative to the door 30 along a straight line at an angle θ to the front wall 31, effectively controlling the displacement of the door 30 in the directions perpendicular to the door side wall 32 and perpendicular to the front wall 31.

[0143] In some embodiments of this application, the guide trajectory line K surrounds the guide trajectory line S. In the projection of the plane containing the top wall of the housing 10, the guide trajectory line K surrounds the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43.

[0144] As an optional configuration, the guide part 50 is configured as a guide groove, and the guide part 60 is configured as a guide channel, with the center trajectory line of the guide channel being the guide trajectory line S. The channel wall of the guide channel is annular to define the annular guide trajectory line K. In the projection of the plane containing the top wall of the housing 10, the channel wall of the guide channel surrounds the guide channel, the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43. During the opening of the door 30, the first hinge axis 41 moves linearly relative to the guide channel, while the second hinge axis 42 and the third hinge axis 43 both move relative to the guide channel, so that the door 30 has a certain amount of lateral displacement during the opening process.

[0145] In this invention, the guide portion 60 defines a closed-loop guide trajectory line. The guide groove can be configured as a closed-loop annular groove. The annular guide portion 60 has high strength, good machinability, and high machining precision; furthermore, the annular shape gives the guide portion 60 excellent detectability, ensuring accuracy; moreover, the annular guide portion 60 has good resistance to deformation, effectively ensuring its accuracy. Combined with the linear guide portion 50, the first hinge shaft 41 fixed to the housing 10 cooperates with the linear guide portion 50, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guide portion 60, enabling precise control of the door body 30's movement, allowing the door body 30 to generate a certain distance displacement in the lateral direction to meet the needs of various applications; and increasing the stability of the door body 30's movement, improving the user experience.

[0146] In some embodiments of this application, corresponding to the guide trajectory line S being a straight line inclined relative to the front wall 31, the guide groove is a straight groove, and the guide groove is inclined relative to the side wall 32. The guide groove extends from its end near the first side edge W in a direction away from the front wall 31 and the side wall 32. The angle between the guide groove and the front wall 31 is θ. This configuration increases the detectability of the machining accuracy of the guide part 50, facilitates detection and adjustment to ensure accuracy, and improves the precision of the motion control of the door body 30.

[0147] In some embodiments of this application, the end of the door body 30 near the door side wall 32 is recessed towards the inner cavity of the door body 30 to form a mounting platform, and the second hinge member (guide part 50 and guide part 60) is provided on the mounting platform.

[0148] As a configurable method, such as Figures 5-6 As shown, the extension 402 of the hinge plate 40 includes a first extension plate 4021 and a second extension plate 4022; wherein one end of the first extension plate 4021 is connected to the connecting portion 401, and the other end is connected to the second extension plate 4022. The first extension plate 4021 has a first side near the sidewall of the first body. Along the direction from the connecting portion 401 to the second extension plate 4022, the first side extends obliquely away from the sidewall of the first body. The second extension plate 4022 has a second side near the access opening. The connection of the first side and the second side defines a clearance opening located on the side of the extension 402 near the sidewall of the first body. The opening end of the clearance opening faces the sidewall of the first body. When the door 30 is opened, the clearance opening allows the portion of the door 30 near the door sidewall 32 to gradually enter the clearance opening, ensuring that the door 30 does not interfere with the extension 402 when opened, allowing the door 30 to open to a larger angle.

[0149] As another possible configuration, the door body 30 has a corner portion 7 near the door sidewall 32; the corner portion 7 has a top plate 71 and a side plate 72 forming part of the door sidewall 32. The top plate 71, the side plate 72, and the mounting platform together define a receiving space 70. When the door body 30 is closed, the extension 402 of the first hinge member is at least partially received within the receiving space 70 to cooperate with the second hinge member. The corner portion 7, when the door body 30 is closed, blocks the second hinge member and the extension 402 of the first hinge member, reducing dust ingress and effectively ensuring smooth engagement of the hinge components. The above-mentioned clearance opening, when the door body 30 is open, avoids interference between the door body 30 (the side plate 72 of the corner portion 7 or the area of ​​the front wall 31 near the first side edge W) and the extension 402, effectively ensuring that the door body 30 can be opened to a larger angle.

[0150] In some embodiments of this application, when the door 30 is closed, the guide portion 50 is close to the front wall 31 of the door relative to the plane where the retrieval opening is located. The first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 are disposed at the end of the extension portion 402 away from the retrieval opening. Alternatively, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 can be disposed on the second extension plate 4022 to provide sufficient space on the extension portion 402 for setting an avoidance opening, thereby avoiding interference when the door 30 is opened and ensuring the opening angle of the door 30. On the other hand, the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43, disposed on the second extension plate 4022 away from the retrieval opening, apply a force to the position of the door 30 near the front wall 31 when it is closed. Combined with the force of the hinge plate 40, this increases the overall support of the first hinge member for the door 30, preventing the door 30 from sinking under gravity and causing deformation or displacement.

[0151] As a possible configuration, when the door 30 is closed, the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 are located on the side of the centroid plane P near the front wall 31 of the door.

[0152] In one possible configuration, the distance between the second hinge axis 42 and the first hinge axis 41 is less than the distance between the first hinge axis 41 and the third hinge axis 43. In another possible configuration, the third hinge axis 43 is located on the side of the first hinge axis 41 and the second hinge axis 42 that is furthest from the pick-up / placement opening.

[0153] In some embodiments of this application, the guide trajectory line K includes a first guide segment K1, a second guide segment K2, a third guide segment K3, a fourth guide segment K4, a fifth guide segment K5, a sixth guide segment K6, and a seventh guide segment K7 connected end to end in sequence; that is, the guide trajectory line K is a closed loop, and the guide groove is an annular closed groove, so as to effectively limit the movement of the second hinge shaft 42 and the third hinge shaft 43, while preventing the second hinge shaft 42 and the third hinge shaft 43 from disengaging from the guide groove. The connection point between the seventh guide segment K7 and the first guide segment K1 is denoted as the first connection point a; the connection point between the first guide segment K1 and the second guide segment K2 is denoted as the second connection point b; the connection point between the second guide segment K2 and the third guide segment K3 is denoted as the third connection point c; the connection point between the third guide segment K3 and the fourth guide segment K4 is denoted as the fourth connection point d; the connection point between the fourth guide segment K4 and the fifth guide segment K5 is denoted as the fifth connection point e; the connection point between the fifth guide segment K5 and the sixth guide segment K6 is denoted as the sixth connection point f; and the connection point between the sixth guide segment K6 and the seventh guide segment K7 is denoted as the seventh connection point g.

[0154] As an optional configuration, when the door 30 is closed, the second hinge shaft 42 engages with the seventh guide segment K7 of the guide groove. That is, when the door 30 is closed, the second hinge shaft 42 is located on the side of the first connection position a away from the first guide segment K1. During the opening process of the door 30 from the closed state, the second hinge shaft 42 first moves towards the first connection position a along the seventh guide segment K7.

[0155] The second connection position b is located on the side of the first connection position a that is close to the door side wall 32 and the door front wall 31;

[0156] The third connection position c is located on the side of the second connection position b away from the front wall 31 and the side wall 32 of the door; in this embodiment, the third connection position c is located on the side of the first connection position a away from the side wall 32 and close to the front wall 31 of the door.

[0157] The fourth connection position d is located on the side of the third connection position c that is close to the rear wall 33 of the door and away from the side wall 32 of the door. In this embodiment, the fourth connection position d is located on the side of the first connection position a that is close to the front wall 31 of the door.

[0158] The fifth connection position e is located on the side of the fourth connection position d that is close to the rear wall 33 and the side wall 32 of the door; in this embodiment, the fifth connection position e is located on the side of the first connection position a that is close to the rear wall 33 and far away from the side wall 32 of the door, and the fifth connection position e is located on the side of the third connection position c that is far away from the side wall 32 of the door.

[0159] The sixth connection position f is located on the side of the fifth connection position e closest to the rear wall 33 and the side wall 32 of the door. In this embodiment, the sixth connection position f is located on the side of the second connection position b furthest from the side wall 32 of the door. Alternatively, the sixth connection position f may be located on the side of the third connection position c closest to the side wall 32 of the door.

[0160] The seventh connection position g is located on the side of the sixth connection position f closest to the front wall 31 and the side wall 32 of the door. In this embodiment, the seventh connection position g is located on the side of the first connection position a closest to the side wall 32 and the rear wall 33 of the door.

[0161] That is, in the projection of the plane where the front wall 31 of the door is located, the seventh connecting position g, the first connecting position a, the second connecting position b, the sixth connecting position f, the third connecting position c, the fifth connecting position e, and the fourth connecting position d are successively away from the side wall 32 of the door.

[0162] In the projection of the plane containing the door side wall 32, the second connecting position b, the third connecting position c, the fourth connecting position d, the first connecting position a, the fifth connecting position e, the seventh connecting position g, and the sixth connecting position f are successively moved away from the front wall 31. As an optional configuration, in the projection of the plane containing the door side wall 32, the fifth connecting position e is closer to the seventh connecting position g than the first connecting position a.

[0163] As an optional configuration, in the projection of the plane containing the door sidewall 32, the fifth connecting position e and the seventh connecting position g are adjacent to each other, and the fourth connecting position d and the first connecting position a are adjacent to each other. Alternatively, in the projection of the plane containing the door sidewall 32, the distance between the fifth connecting position e and the seventh connecting position g is less than 1.5 mm; the distance between the first connecting position a and the fourth connecting position d is less than 1.5 mm.

[0164] As a configurable method, in the projection of the plane containing the door sidewall 32, the projections of each connecting position—second connecting position b, third connecting position c, fourth connecting position d, first connecting position a, fifth connecting position e, seventh connecting position g, and sixth connecting position f—are sequentially denoted as b`, c`, d`, a`, e`, g`, and f`. The distance between two projection points is represented by two letters, such as the distance between the projection point of the sixth connecting position f and the projection point of the first connecting position a, denoted as f`a`. Specifically, f`a`: b`a` belongs to any value between 4 and 6; a`g`: f`a` belongs to any value between 0.5 and 0.7; d`c`: c`b` belongs to any value between 1.8 and 2.2.

[0165] In the projection of the plane containing the front wall 31, the projections of the connecting positions b (second connecting position), c (third connecting position), d (fourth connecting position), a (first connecting position), e (fth connecting position), g (seventh connecting position), and f (sixth connecting position) are denoted as b``, c``, d``, a``, e``, g``, and f``, respectively. The distance between two projection points is represented by two letters, such as the distance between the projection point of the sixth connecting position f and the projection point of the first connecting position a, denoted as f``a``. b``f``: f``e`` belongs to any value between 0.6 and 0.7; a``b``: b``d`` belongs to any value between 0.3 and 0.4; a``b``: b``c`` belongs to any value between 1 and 1.2; e``d``: c``d`` belongs to any value between 0.2 and 0.3; a``g``: a``b`` belongs to any value between 0.4 and 0.6.

[0166] The relative positions of the connecting parts in the projections on the plane of the side wall 32 and the plane of the front wall 31 make the guide trajectory line K smoother; correspondingly, when the door 30 is opened, the movement of the second hinge axis 42 and the third hinge axis 43 relative to the guide trajectory line K is smoother.

[0167] In some embodiments of this application, along the direction from the first connecting position a to the second connecting position b, the first guide segment K1 extends away from the door side wall 32 and closer to the door front wall 31. As another possible configuration, along the direction from the first connecting position a to the second connecting position b, the first guide segment K1 first extends closer to the door side wall 32 and the door front wall 31, and then extends away from the door side wall 32 and closer to the door front wall 31; in this configuration, the point where the distance between the first guide segment K1 and the door side wall 32 is minimized is denoted as the protrusion a1.

[0168] Along the direction from the second connecting position b toward the third connecting position c, the second guide segment K2 extends away from the door side wall 32 and the door front wall 31;

[0169] Along the direction from the third connecting position c towards the fourth connecting position d, the third guide segment K3 extends away from the door side wall 32 and the door front wall 31. Specifically, for every unit increase in distance between the second guide segment K2 and the door front wall 31, the increase in distance between the second guide segment K2 and the door side wall 32 is denoted as ζ1; for every unit increase in distance between the third guide segment K3 and the door front wall 31, the increase in distance between the third guide segment K3 and the door side wall 32 is denoted as ζ2; ζ1 < ζ2. That is, relative to the changing trend of the second guide segment K2, the third guide segment K3 moves away from the door side wall 32 more rapidly.

[0170] Along the direction from the fourth connecting position d to the fifth connecting position e, the fourth guide segment K4 first extends away from the door side wall 32 and the door front wall 31, and then extends towards the door side wall 32 and away from the door front wall 31. Under this setting, the point where the fourth guide segment K4 is at its maximum distance from the door side wall 32 is denoted as the protrusion d1. The protrusion d1 is the point where the guide trajectory line K is at its maximum distance from the door side wall 32.

[0171] Along the direction from the fifth connecting position e to the sixth connecting position f, the fifth guide segment K5 extends towards the side wall 32 of the door and away from the front wall 31 of the door; wherein, the guide trajectory line K protrudes towards the guide centroid O at the fifth connecting position e to transitionally connect the fourth guide segment K4 and the fifth guide segment K5.

[0172] Along the direction from the sixth connecting position f toward the seventh connecting position g, the sixth guide segment K6 extends toward the door side wall 32 and the door front wall 31;

[0173] Along the direction from the seventh connecting position g toward the first connecting position a, the seventh guide segment K7 extends away from the door side wall 32 and toward the door front wall 31, and the seventh guide segment K7 protrudes away from the guide centroid O.

[0174] That is, in this embodiment, the second connection position b is the point where the guide trajectory line K is at the smallest distance from the front wall 31, the convex point d1 is the point where the guide trajectory line K is at the largest distance from the side wall 32, the sixth connection position f is the point where the guide trajectory line K is at the largest distance from the front wall 31, and the seventh connection position g is the point where the guide trajectory line K is at the smallest distance from the side wall 32.

[0175] The portion of the fourth guide segment K4 extending away from the door side wall 32 and the front wall 31 is designated as the first segment (dd1), and the portion of the fourth guide segment K4 extending towards the door side wall 32 and away from the front wall 31 is designated as the second segment (d1e).

[0176] In this context, along the direction from the front wall 31 to the rear wall 33, the rate at which the distance between the second segment of the fourth guide segment K4 and the door side wall 32 decreases is denoted as λ1, and the rate at which the distance between the fifth guide segment K5 and the door side wall 32 decreases is denoted as λ2; where λ1 < λ2. That is, relative to the door side wall 32, the change trend of the fourth guide segment K4 is gentler than that of the fifth guide segment K5.

[0177] In this context, along the direction from the front wall 31 to the rear wall 33, the rate of increase in distance between the first segment of the fourth guide segment K4 and the door side wall 32 is denoted as λ3, and the rate of increase in distance between the third guide segment K3 and the door side wall 32 is denoted as λ4, where λ3 < λ4. That is, relative to the door side wall 32, the trend of distance change between the first segment of the fourth guide segment K4 and the door side wall 32 is gentler than that of the third guide segment K3. The guide trajectory line K extends rapidly from the third connecting position c away from the door side wall 32 towards the fourth connecting position d along the third guide segment K3, and from the fourth connecting position d, it extends rapidly from the first segment of the fourth guide segment K4 away from the front wall 31 towards the fifth connecting position e, thus forming a closed loop guide trajectory line K in the area near the fourth connecting position d, close to the front wall 31 and away from the door side wall 32.

[0178] The sixth guide segment K6 includes an inflection point h located between the sixth connecting position f and the seventh connecting position g. Along the direction from the rear wall 33 to the front wall 31, the rate at which the distance between the fh segment of the sixth guide segment K6 and the door side wall 32 decreases is denoted as λ5, and the rate at which the distance between the hg segment of the sixth guide segment K6 and the door side wall 32 decreases is denoted as λ6, where λ6 < λ5. That is, relative to the door side wall 32, the distance change trend between the hg segment of the sixth guide segment K6 and the door side wall 32 is gentler than that between the fh segment and the door side wall 32. The inflection point h is the point where the rate of increase in the distance between the guide trajectory line K and the door side wall 32 changes. The guide trajectory line K moves rapidly from the sixth connecting position f along the sixth guide segment K6 toward the inflection point h and approaches the door side wall 32. Starting from the inflection point h, it extends rapidly along the sixth guide segment K6 toward the front wall 31 and towards the seventh connecting position g, thus forming a closed circular guide trajectory line K away from the corner of the front wall 31 and the door side wall 32 in the vicinity of the inflection point h.

[0179] As one feasible approach, when the door 30 is closed, the second hinge shaft 42 engages with the first connection position a of the guide groove; the third hinge shaft 43 engages with the fourth connection position d of the guide groove. Correspondingly, at this time, the first hinge shaft 41 is located on the guide trajectory line S.

[0180] As an optional configuration, when the door 30 is closed, the second hinge shaft 42 is interference-fitted with the seventh guide segment K7 of the guide groove near the front wall 31; the third hinge shaft 43 is interference-fitted with the third guide segment K3 of the guide groove away from the side wall 32. When the door 30 continues to move in the closing direction after closing to an opening angle of 0°, the above-mentioned guide trajectory line K can apply resistance to the movement of the second hinge shaft 42 and the third hinge shaft 43 relative to the guide groove, thereby preventing the door 30 from continuing to move in the closing direction from the closed state. This avoids the door 30 from being over-closed and then rebounding open due to excessive force; and allows the door 30 to remain stably in the closed state, increasing the stability of the door 30 in the closed state.

[0181] Specifically, when the door 30 is closed, the third hinge shaft 43 moves away from the side wall 32 and closes to the front wall 31 of the door, and cooperates with the guide groove; when the door 30 continues to move in the closing direction after closing to the opening angle of 0°, the distance between the guide trajectory line S and the third guide segment K3 is insufficient to allow the third hinge shaft 43 to move relative to the third guide segment K3.

[0182] In some embodiments of this application, the guide trajectory line S has a starting guide position I0, a first guide position I1, a second guide position I2, a third guide position I3, a fourth guide position I4, a fifth guide position I5, a sixth guide position I6, a seventh guide position I7, an eighth guide position I8, a ninth guide position I9, and a tenth guide position I1. 10 .

[0183] In some embodiments of this application, the fifth guide position I5 is the endpoint of the guide trajectory line S near the door sidewall 32, and the tenth guide position I... 10 The guide trajectory line S is positioned away from the endpoint of the door sidewall 32; the tenth guide position I 10 It is located on the side of the fifth guide position I5 away from the door side wall 32 and the door front wall 31. In addition, the starting guide position I0 is located between the fifth guide position I5 and the tenth guide position I. 10 Between these points, the initial guide position I0, the first guide position I1, and the second guide position I2 move away from the door side wall 32 in sequence. The second guide position I2, the third guide position I3, the fourth guide position I4, and the fifth guide position I5 move closer to the door side wall 32 in sequence. The fifth guide position I5, the sixth guide position I6, the seventh guide position I7, the eighth guide position I8, the ninth guide position I9, and the tenth guide position I1... 10 Moving sequentially away from the door sidewall 32. In this embodiment, relative to the tenth guide position I 10 The initial guide bit I0 is close to the fifth guide bit I5.

[0184] The central axis of the first hinge axis 41 is denoted as the first central axis I, the central axis of the second hinge axis 42 is denoted as the second central axis E, and the central axis of the third hinge axis 43 is denoted as the third central axis F.

[0185] During the opening of the door 30, the first hinge shaft 41 moves relative to the guide groove, and the second hinge shaft 42 and the third hinge shaft 43 cooperate with the guide groove and move relative to the guide groove.

[0186] Within the projection of the plane containing the top wall of the housing 10, the first central axis I, the second central axis E, and the third central axis F form an axial triangle IEF.

[0187] As a configurable configuration, the axial triangle IEF is an obtuse triangle; ∠FIE belongs to any value between 172° and 178°; ∠IEF belongs to any value between 3.5° and 4°; that is, the axial triangle IEF is an obtuse triangle with one angle close to 180°. The above-mentioned positional arrangement of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 forming an obtuse triangle ensures that the second hinge axis 42 and the third hinge axis 43 both mate with the guide groove, and the first hinge axis 41 mates with the guide groove. This increases the assembly dimension of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 with the door body 30 (guide groove). The axial triangle IEF formed by the first hinge component forms a surface fit with the guide groove of the second hinge component; that is, the first hinge component and the second hinge component form a surface fit, effectively improving the fit stability of the first hinge component and the second hinge component. In addition, the second hinge shaft 42 and the third hinge shaft 43 are located on opposite sides of the first hinge shaft 41 and cooperate with the guide groove to increase stability.

[0188] As an optional configuration, the longest side EF of the obtuse-angled triangular axis triangle IEF is located on the side of the axis triangle IEF furthest from the retrieval opening. This configuration allows the second hinge axis 42 and the third hinge axis 43, which are relatively far apart, to cooperate with the guide groove on the side furthest from the retrieval opening to support the door body 30. This further increases the support stability of the three hinge axes for the door body 30, while reducing the size of the axis triangle IEF along the direction perpendicular to the retrieval opening. This allows the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 to be mounted on the second extension plate 4022, achieving avoidance between the door corner 7 and the hinge plate 40. Specifically, it can be configured such that, in the projection of the plane containing the top wall of the housing, the straight line IE containing the first central axis I and the second central axis E is parallel to the retrieval opening. In addition, it can be configured such that the third central axis F is located on the side of the straight line IE containing the first central axis I and the second central axis E furthest from the retrieval opening.

[0189] In this embodiment, guide grooves and guide slots are provided 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 housing 10 via the hinge plate 40. The movement of the door body 30 relative to the housing 10 is equivalent to the relative movement in a plane (two-dimensional plane) parallel to the top wall of the housing 10. In the plane parallel to the top wall of the housing 10, the movement of the door body 30 relative to the housing 10, and the movement of the guide groove or guide slot relative to the axis triangle IEF, are equivalent to the movement of the guide groove or guide slot relative to the hinge plate 40 (housing 10), and also equivalent to the movement of the door body 30 relative to the housing 10. In this embodiment, for ease of explanation, the axis triangle IEF represents the housing 10, and the guide groove or guide slot represents the door body 30.

[0190] When the door 30 is opened, there is a relative motion relationship between the first hinge shaft 41 and the guide groove, and between the second hinge shaft 42 or the third hinge shaft 43 and the guide groove. In this embodiment, for ease of description, the door 30 (guide groove or guide groove) is used as a stationary reference object, and the first hinge shaft 41 moves relative to the guide groove, and the second hinge shaft 42 or the third hinge shaft 43 moves relative to the guide groove, so as to illustrate the specific process of opening the door 30.

[0191] like Figures 7-33 As shown, the movement of the axial triangle IEF relative to the guide groove / guide slot is equivalent to the movement of the housing 10 (hinge plate 40) relative to the door 30.

[0192] The movement of the first hinge axis 41 relative to the guide groove is equivalent to the movement of the first central axis I relative to the guide trajectory line S; the movement of the second hinge axis 42 or the third hinge axis 43 relative to the guide groove is equivalent to the movement of the second hinge axis 42 or the third hinge axis 43 relative to the guide trajectory line K.

[0193] In this embodiment, the maximum opening angle G of the refrigerator max The following explanation will be based on an angle greater than 90°. In the following explanation, G will be used as the reference. max =G 10 Let's take an example to illustrate. It should be noted that the maximum angle G... max It can be from other angles, and it is not affected by G. max =G 10 Restrictions.

[0194] Door 30 opens from the closed state to its maximum angle G max (=G) 10 During the process, when the door 30 rotates open to a specific angle, the relative positions of the first hinge shaft 41 relative to the guide groove, and the relative positions of the second hinge shaft 42 and the third hinge shaft 43 relative to the guide groove are as follows:

[0195] Wherein, φ represents the opening angle of the door 30, and the opening angle φ = 0° when the door 30 is closed;

[0196] like Figure 7 As shown, when φ=0°, the door 30 is in the closed state; the first central axis I is located at the starting guide position I0 of the guide trajectory line S. That is, when the door 30 is closed, the first hinge axis 41 is located in the area of ​​the guide groove near the door side wall 32. The second hinge axis 42 engages with the seventh guide segment K7 of the guide trajectory line K, and the third hinge axis 43 engages with the fourth connection position d of the guide trajectory line K. At this time (when φ=0°), the second central axis E is located at E0 relative to the door 30, and the third central axis F is located at F0 relative to the door 30; that is, the axis triangle IEF is located at the initial triangle position I0E0F0 relative to the door 30. The centroid plane P is located on the side of the initial triangle position I0E0F0 away from the front 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 wall 31. That is, when the door 30 is closed, the centroid plane P is not between the hinge axes.

[0197] like Figure 8As shown, when φ=G1∈(0°,G2), the door 30 rotates from the closed state to G2. During this opening process, the first central axis I moves along the guide trajectory line S in a direction away from the door side wall 32; the second hinge axis 42 engages with the seventh guide segment K7, and the second hinge axis 42 moves relative to the seventh guide segment K7 in a direction approaching the first connection position a from the seventh connection position g; the third hinge axis 43 engages with the fourth guide segment K4, and the third hinge axis 43 moves relative to the fourth guide segment K4 in a direction approaching the fifth connection position e from the fourth connection position d. That is, during the process of the door 30 rotating from the closed state to G2, 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 closer to the front wall 31, and the third hinge axis 43 moves relative to the guide groove in a direction away from both the door side wall 32 and the front wall 31.

[0198] As described above, when the door 30 opens at an angle φ = G1 ∈ (0°, G2), the movement trend within this opening angle range remains consistent. The only difference lies in the following: with different opening angles, the position of the first hinge axis 41 relative to the guide trajectory line S is different; the position of the second hinge axis 42 relative to the seventh guide segment K7 of the guide trajectory line K is different; and the position of the third hinge axis 43 relative to the fourth guide segment K4 of the guide trajectory line K is different. Thus, when the opening angle φ = G1 ∈ (0°, G2), selecting one of the opening angles can represent the relative positions of the first hinge axis 41 relative to the guide groove, and the second hinge axis 42 and the third hinge axis 43 relative to the guide groove when the door 30 is opened to the corresponding range. Specifically, as shown... Figure 8 and Figure 24 As shown, φ=G1∈(0°,G2) represents the position within the opening angle range, for comparison with the other states when the door 30 is opened.

[0199] like Figure 8 and Figure 24 As shown, when the door 30 is opened to G1, the first central axis I is located at the first guide position I1 of the guide trajectory line S; wherein, the first guide position I1 is located on the side away from the door side wall 32 and the front wall 31 of the initial guide position I0; the seventh guide segment K7 of the guide trajectory line K cooperates with the second hinge axis 42, and the fourth guide segment K4 cooperates with the third hinge axis 43. At this time (when φ=G1), the second central axis E is located at E1 relative to the door 30, and the third central axis F is located at F1 relative to the door 30; that is, the axis triangle IEF is located at the first triangle position I1E1F1 relative to the door 30. The centroid plane P is located on the side away from the front wall 31 of the first triangle position I1E1F1; that is, the centroid plane P is located on the side away from the front wall 31 of the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43. That is, when the door 30 is closed, the centroid plane P is not between the hinge axes.

[0200] like Figure 9 , Figure 25 As shown, when φ=G2, the door 30 rotates open to G2; the first central axis I is located at the second guide position I2 of the guide trajectory line S; wherein, the second guide position I2 is located on the side of the first guide position I1 away from the door side wall 32 and the front wall 31. The second hinge axis 42 engages with the seventh guide segment K7 of the guide trajectory line K. At the same time, the third hinge axis 43 engages with the fourth guide segment K4. At this time (when φ=G2), the second central axis E is located at E2 relative to the door 30, and the third central axis F is located at F2 relative to the door 30; that is, the axis triangle IEF is located at the second triangle position I2E2F2 relative to the door 30. The centroid plane P is located on the side of the second triangle position I2E2F2 away from the front 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 wall 31. That is, when the door 30 is closed, the centroid plane P is not between the hinge axes. In some embodiments of this application, during the process of opening the door 30 from the closed state to G2, the first hinge axis 41 moves in a straight line away from the door side wall 32 and the front wall 31. When the door 30 continues to open from G2, the direction of movement of the first hinge axis 41 changes; that is, when the door 30 continues to open from G2, the first hinge axis 41 changes from moving in a straight line away from the door side wall 32 and the front wall 31 to moving in a straight line closer to the door side wall 32 and the front wall 31.

[0201] like Figure 10 , Figure 26 As shown, when φ=G3, the door 30 rotates open to G3; the first central axis I is located at the third guide position I3 of the guide trajectory line S; wherein, the third guide position I3 is located on the side of the second guide position I2 near the door side wall 32 and the door front wall 31; the second hinge axis 42 engages with the first connection position a of the guide trajectory line K, and the fourth guide segment K4 engages with the third hinge axis 43. At this time (when φ=G3), the second central axis E is located at E3 relative to the door 30, and the third central axis F is located at F3 relative to the door 30; that is, the axis triangle IEF is located at the third triangle position I3E3F3 relative to the door 30. The centroid plane P passes through the third triangle position I3E3F3; specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, when the opening angle of the door 30 is G4, the center of mass plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door 30 closer to the center of mass plane P, which effectively increases the stability of the door 30 when it is open.

[0202] Combination Figures 8-10From the process of door 30 opening from G2 to G3, it can be seen that there exists φ = G`1 ∈ (G2, G3). When φ ∈ (G2, G`1), the centroid plane P is located on the side of the axial triangle IEF away from the front 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 wall 31. That is, when the opening angle of door 30 is φ ∈ (G2, G`1), the centroid plane P is not between the hinge axes. When φ ∈ (G`1, G3), the centroid plane P passes through the axial triangle IEF. That is, the center of mass 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 wall 31 of the door. Combining the process of the door 30 opening from the closed state to G2, it can be concluded that when the opening angle of the door 30 is not greater than G`1, the center of mass plane P is not between the hinge axes; while when the opening angle of the door 30 is greater than G`1, the center of mass plane P is between the hinge axes, and the hinge axes cooperate to bear the weight of the door 30 closer to the center of mass plane P, effectively increasing the stability of the door 30 when opening.

[0203] like Figure 11 , Figure 27 As shown, when φ=G4, the door 30 rotates open to G4; the first central axis I is located at the fourth guide position I4 of the guide trajectory line S; wherein, the fourth guide position I4 is located on the side of the third guide position I3 near the door side wall 32 and the front wall 31. The second hinge axis 42 engages with the first guide segment K1 of the guide trajectory line K, and the third hinge axis 43 engages with the fifth connection position e. At this time (when φ=G4), the second central axis E is located at E4 relative to the door 30, and the third central axis F is located at F4 relative to the door 30; that is, the axis triangle IEF is located at the fourth triangle position I4E4F4 relative to the door 30. The centroid plane P passes through the fourth triangle position I4E4F4; specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front wall 31. That is, when the opening angle of the door 30 is G4, the center of mass plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door 30 closer to the center of mass plane P, which effectively increases the stability of the door 30 when it is open.

[0204] like Figure 12 , Figure 28As shown, when φ=G5, the door 30 rotates open to G5; the first central axis I is located at the fifth guide position I5 of the guide trajectory line S; wherein, the fifth guide position I5 is located on the side of the fourth guide position I4 near the door side wall 32 and the front wall 31, and is the endpoint of the guide trajectory line S near the door side wall 32; that is, the first hinge axis 41 moves to the endpoint of the guide groove near the door side wall 32. The second hinge axis 42 engages with the first guide segment K1 of the guide trajectory line K, and the third hinge axis 43 engages with the fifth guide segment K5. At this time (when φ=G5), the second central axis E is located at E5 relative to the door 30, and the third central axis F is located at F5 relative to the door 30; that is, the axis triangle IEF is located at the fifth triangle position I5E5F5 relative to the door 30. The center of mass plane P passes through the fifth triangular position I5E5F5; specifically, the center of mass plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front wall 31 of the door. That is, when the door 30 is opened at an angle G5, the center of mass plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door 30 closer to the center of mass plane P, effectively increasing the stability of the door 30 when it is opened.

[0205] like Figure 13 As shown, when φ = G6 ∈ (G5, G7), the door 30 rotates open from G5 to G7. During this opening process, the first central axis I moves along the guide trajectory line S away from the door side wall 32 and the front wall 31. The second hinge axis 42 engages with the first guide segment K1, and the second hinge axis 42 moves relative to the first guide segment K1 in a direction approaching the second connection position b from the first connection position a. The third hinge axis 43 engages with the fifth guide segment K5, and the third hinge axis 43 moves relative to the fifth guide segment K5 in a direction approaching the sixth connection position f from the fifth connection position e. That is, during the process of the door 30 rotating open from G5 to G7, while the first hinge axis 41 moves relative to the guide groove away from the door side wall 32 and the front wall 31, the second hinge axis 42 moves relative to the guide groove away from the door side wall 32 and closer to the front wall 31, and the third hinge axis 43 continues to move relative to the guide groove in a direction closer to the door side wall 32 and away from the front wall 31.

[0206] As described above, when the door 30 opens at an angle φ = G6 ∈ (G5, G7), the movement trend within this opening angle range remains consistent. The only difference lies in the following: with different opening angles, the position of the first hinge axis 41 relative to the guide trajectory line S is different; the position of the second hinge axis 42 relative to the first guide segment K1 of the guide trajectory line K is different; and the position of the third hinge axis 43 relative to the fifth guide segment K5 of the guide trajectory line K is different. Thus, when the opening angle φ = G6 ∈ (G5, G7), selecting one of the opening angles can represent the relative positions of the first hinge axis 41 relative to the guide groove, and the second hinge axis 42 and the third hinge axis 43 relative to the guide groove when the door 30 is opened to the corresponding range. Specifically, as shown... Figure 13 and Figure 29 As shown, φ=G6∈(G5,G7) represents the position within this opening angle range, for comparison with the door 30 when it is opened to other states.

[0207] like Figure 13 and Figure 29 As shown, when the door 30 is opened to G6, the door 30 rotates open to G6; the first central axis I is located at the sixth guide position I6 of the guide trajectory line S; wherein, the sixth guide position I6 is located on the side away from the fifth guide position I5 away from the door side wall 32 and the door front wall 31. The second hinge axis 42 cooperates with the first guide segment K1 of the guide trajectory line K, and the third hinge axis 43 cooperates with the fifth guide segment K5. At this time (when φ=G6), the second central axis E is located at E6 relative to the door 30, and the third central axis F is located at F6 relative to the door 30; that is, the axis triangle IEF is located at the sixth triangle position I6E6F6 relative to the door 30. The centroid plane P passes through the sixth triangle position I6E6F6; specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, when the opening angle of the door 30 is G6, the center of mass plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door 30 closer to the center of mass plane P, which effectively increases the stability of the door 30 when it is open.

[0208] like Figure 14 and Figure 30As shown, when the door 30 is opened to G7, the first central axis I is located at the seventh guide position I7 of the guide trajectory line S; wherein, the seventh guide position I7 is located on the side of the sixth guide position I6 away from the door side wall 32 and the front wall 31; the second connecting position b of the guide trajectory line K cooperates with the second hinge axis 42, and the fifth guide segment K5 cooperates with the third hinge axis 43. At this time (when φ=G7), the second central axis E is located at E7 relative to the door 30, and the third central axis F is located at F7 relative to the door 30; that is, the axis triangle IEF is located at the seventh triangle position I7E7F7 relative to the door 30. During the process of the door 30 rotating open from G6 to G8, the centroid plane P always passes through the seventh triangle position I7E7F7. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front wall 31. That is, when the door 30 is opened at an angle of G7, the center of mass plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door 30 closer to the center of mass plane P, which effectively increases the stability of the door 30 when it is opened.

[0209] like Figure 15 , Figure 31 As shown, when φ=G8, the door 30 rotates open to G8; the first central axis I is located at the eighth guide position I8 of the guide trajectory line S; wherein, the eighth guide position I8 is located on the side of the seventh guide position I7 away from the door side wall 32 and the door front wall 31. The second hinge axis 42 cooperates with the second guide segment K2, and the third hinge axis 43 cooperates with the fifth guide segment K5. At this time (when φ=G8), the second central axis E is located at E8 relative to the door 30, and the third central axis F is located at F8 relative to the door 30; that is, the axis triangle IEF is located at the eighth triangle position I8E8F8 relative to the door 30. The centroid plane P passes through the eighth triangle position I8E8F8; specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, when the opening angle of the door 30 is G6, the center of mass plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door 30 closer to the center of mass plane P, which effectively increases the stability of the door 30 when it is open.

[0210] In some embodiments of this application, φ=G8=90°. That is, when the door 30 is opened to 90°, the second hinge shaft 42 contacts and engages with the second guide segment K2 of the guide trajectory line K. Alternatively, when the door 30 is closed, IE is parallel to the front wall 31. That is, when the door 30 is closed, the straight line I0E0 containing the first central axis I and the second central axis E is parallel to the front wall 31. Correspondingly, when the door 30 is opened to 90°, the straight line I8E8 containing the first central axis I and the second central axis E is perpendicular to the front wall 31.

[0211] In some embodiments of this application, when the door 30 is opened to 90°, the second hinge shaft 42 is interference-fitted with the guide trajectory line K.

[0212] In some embodiments of this application, when the door 30 is opened to 90°, the third hinge shaft 43 and the fifth guide segment K5 are interference-fitted.

[0213] As described above, when the door 30 is opened to 90°, the door 30 can be stopped in its current state by the action of the inner wall of the guide groove on the second hinge shaft 42 and the third hinge shaft 43.

[0214] As described above, along the direction from the second connecting position b towards the third connecting position c, the second guide segment K2 extends away from the door side wall 32 and the front wall 31; that is, along the direction from the second connecting position b towards the third connecting position c, the distance between the guide trajectory line K and the front wall 31 gradually increases. At this time, the door 30 is opened to 90°, the straight line containing the first central axis I and the second central axis E is perpendicular to the front wall 31, the pressure of the guide groove on the second hinge axis 42 is perpendicular to the front wall 31, and there is a tendency for relative movement between the second hinge axis 42 and the guide groove in a direction parallel to the front wall 31, while the distance between the second guide segment K2 and the front wall 31 gradually increases along the direction from the second connecting position b towards the third connecting position c. When the door 30 continues to open from 90°, the extension of the second guide section K2 has a tendency to prevent the second hinge shaft 42 and the guide groove from moving relative to each other in a direction parallel to the front wall 31 of the door when the door is opened to 90°. This allows the door 30 to remain stably at 90°, making it convenient for the user to open the door 30 to 90° and retrieve items from the storage room. By continuing to apply external force, the user can overcome the resistance applied by the third guide section K3 and continue to open the door 30.

[0215] As a configurable method, when the door 30 is opened to 90°, the second hinge shaft 42 engages with the second connection position b.

[0216] like Figure 16 and Figure 32As shown, when the door 30 is opened to G9, the first central axis I is located at the ninth guide position I9 of the guide trajectory line S; wherein, the ninth guide position I9 is ​​located on the side away from the door side wall 32 and the door front wall 31 of the eighth guide position I8; the second hinge axis 42 cooperates with the third connecting position c, and the third hinge axis 43 cooperates with the sixth guide segment K6. At this time (when φ=G9), the second central axis E is located at E9 relative to the door 30, and the third central axis F is located at F9 relative to the door 30; that is, the axis triangle IEF is located at the ninth triangle position I9E9F9 relative to the door 30. The centroid plane P passes through the ninth triangle position I9E9F9; specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the door front wall 31. That is, when the door 30 is opened at an angle of G9, the center of mass plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door 30 closer to the center of mass plane P, which effectively increases the stability of the door 30 when it is opened.

[0217] Door 30 opens to G 10 At that time, the first central axis I is located at the tenth guide position I of the guide trajectory line S. 10 Among them, the tenth leading bit I 10 Located on the side away from the door sidewall 32 and the front wall 31 at the ninth guide position I9; that is, the first hinge shaft 41 moves to the end of the guide groove away from the door sidewall 32; the third guide segment K3 of the guide trajectory line K engages with the second hinge shaft 42, and the sixth guide segment K6 engages with the third hinge shaft 43. At this time (φ=G) 10 (At that time), the second central axis E is located relative to the door body 30 at E 10 The third central axis F is located relative to the door body 30 at F 10 That is, the axis triangle IEF is located in the tenth triangle position relative to the gate body 30. 10 E 10 F 10 The centroid plane P passes through the tenth triangle position I. 10 E 10 F 10 Specifically, the centroid plane P is located between the first hinge 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 wall 31 of the door. That is, the opening angle of the door 30 is G. 10 At this time, the center of mass plane P is between the hinge axes, and each hinge axis cooperates to bear the weight of the door body 30 closer to the center of mass plane P, which effectively increases the stability of the door body 30 when it is opened.

[0218] In some embodiments of this application, the door 30 is opened to G. 10 At this time, the second hinge shaft 42 and the third hinge shaft 43 are in contact with the inner wall of the guide groove.

[0219] In some embodiments of this application, the door 30 is opened to G.10 At this time, the first hinge shaft 41 is located at the end of the guide groove away from the door side wall 32 and the front wall 31, and the third hinge shaft 43 is in contact with the sixth guide section K6 of the guide groove. As an optional configuration, the door 30 is opened to G... 10 At this time, the third hinge shaft 43 engages with the inflection point h of the guide groove. As an alternative configuration, along the direction from the rear wall 33 to the front wall 31, the rate at which the distance between the fh segment of the sixth guide segment K6 and the side wall 32 decreases is greater than the rate at which the distance between the hg segment of the sixth guide segment K6 and the side wall 32 decreases, so as to form a corner area in the region of the guide groove that is close to the side wall 32 and far away from the front wall 31.

[0220] In some embodiments of this application, the door 30 is opened to G. 10 At this time, the first hinge shaft 41 is located at the end of the guide groove away from the door side wall 32 and the front wall 31, and the third hinge shaft 43 is in contact with the sixth guide section K6 of the guide groove. As an optional configuration, the door 30 is opened to G... 10 At that time, the third hinge shaft 43 engages with the inflection point h of the guide groove.

[0221] In this embodiment, along the direction from the sixth connecting position f towards the seventh connecting position g, the sixth guide segment K6 extends towards 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 guide segment K6 and the door side wall 32 gradually decreases; the door 30 opens to G. 10 At this time, the third hinge shaft 43 is interference-fitted with the inflection point h of the sixth guide section K6 of the guide groove. The above settings enable the door body 30 to stay stably at G. 10 The status allows users to easily open door 30 to G. 10 Items can then be retrieved from the storage room; and the door 30 should be prevented from being opened excessively under external force, which could damage the hinge assembly. As an optional configuration, the third hinge shaft 43 is in an interference fit with the inflection point h of the guide groove.

[0222] Assuming door body 30 is made of G 10As the door continues to open, the third hinge shaft 43 tends to move towards the seventh connecting position g relative to the sixth guide segment K6, while the second hinge shaft 42 tends to move towards the fourth connecting position d relative to the third guide segment K3. In this embodiment, along the direction from the sixth connecting position f towards the seventh connecting position g, the sixth guide segment K6 extends towards the door side wall 32 and the door front wall 31, reducing the distance between the sixth guide segment K6 and the door side wall 32. The extending tendency of the sixth guide segment K6 causes the third hinge shaft 43 to tend to move away from the door side wall 32 while the first hinge shaft 41 moves along the guide groove and the third hinge shaft 43 engages with the sixth guide segment K6. In this embodiment, since the first hinge shaft 41 is located at the end of the guide groove away from the door side wall 32, it cannot continue to move away from the door side wall 32, thus preventing the movement tendency of the third hinge shaft 43. This allows the door 30 to remain stably at position G. 10 state.

[0223] As a configurable method, door 30 opens to G. 10 At this time, the third hinge shaft 43 is interference-fitted with the sixth guide section K6. Alternatively, the second hinge shaft 42 can be interference-fitted with the third guide section K3 to further increase the stability of the door 30 when it is fully opened.

[0224] In some embodiments of this application, the door 30 is opened to G. 10 At this time, the side of the third hinge shaft 43 closest to the door side wall 32 and furthest from the door front wall 31 is interference-fitted with the end of the sixth guide segment K6 furthest from the door front wall 31. When the three hinge shafts rotate simply about the central axis of the first hinge shaft 41, the distance between the third hinge shaft 43 and the door side wall 32 decreases, and the rate at which the distance between the third hinge shaft 43 and the door side wall 32 decreases is greater than the rate at which the distance between the sixth guide segment K6 and the door side wall 32 decreases, so that the door side wall 32 of the door body 30 moves away from the first hinge shaft 41 relative to the hinge axis.

[0225] In conjunction with the aforementioned settings for opening the door 30 to various angles, in some embodiments of this application, during the process of opening the door 30 from the closed state to G9, the second hinge shaft 42 and the third hinge shaft 43 are always in contact with and engaged with the inner wall of the guide groove.

[0226] As a configurable setting, the above applies to the door 30 in the closed state, the door 30 open to 90°, and the door 30 open to its maximum angle G. max (=G) 10 All contact fits are interference fits to ensure that the door 30 can stop in its current state.

[0227] Above 0°<G1<G`1<G2<G3<G4<G5<G6<G7<G8<G9<G10 ;G1, G2, G3, G4, G5, G6, G7, G8, G9, G 10 The angles are sequentially labeled as follows: first angle G1, second angle G2, third angle G3, fourth angle G4, fifth angle G5, sixth angle G6, seventh angle G7, eighth angle G8, ninth angle G9, and tenth angle G1. 10 In this embodiment, G max =G 10 It can be set, G8=90°.

[0228] Based on the above analysis of the state of door 30 at different angles when it is opened, it can be seen that during the process of door 30 opening from the closed state to G`1, the centroid plane P is located on the side of the axis triangle IEF away from the front wall 31; 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. The door 30 opens from G`1 to G... 11 During the process, the center of mass plane P passes through the axis triangle IEF; that is, the center of mass plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42. That is, when the opening angle of the door 30 is not greater than G`1, the center of mass plane P is not between the hinge axes; while when the opening angle of the door 30 is greater than G`1, the center of mass plane P is between the hinge axes, and the hinge axes cooperate to bear the weight of the door 30 closer to the center of mass plane P, effectively increasing the stability of the door 30 when opening.

[0229] As a configurable method, G`1:G max It belongs to any value between 0.75 and 1. As a settable value, G`1 belongs to 25°~27°, G... max =G 10 =125°; it can be seen that during most of the opening stroke (75%~80% of the stroke), the center of mass plane F of the door 30 is always located between the first hinge axis 41 and the third hinge axis 43, which effectively ensures that the door 30 is stably stressed throughout the opening process, and the door 30 is more stable when opening.

[0230] In summary, it can be concluded that door 30 opens from the closed state to G. max =G 10 During the process, the first hinge shaft 41 moves along a straight line relative to the guide groove first away from the door side wall 32 and the front wall 31, then moves closer to the door side wall 32 and the front wall 31, and then moves away from the door side wall 32 and the front wall 31; the second hinge shaft 42 and the third hinge shaft 43 move clockwise relative to the guide groove throughout the entire process.

[0231] During the process of opening the door 30 from the closed state to G2, the first hinge shaft 41 moves in a straight line away from the door side wall 32 and the front wall 31 relative to the guide groove; the second hinge shaft 42 moves relative to the seventh guide segment K7; and the third hinge shaft 43 moves relative to the fourth guide segment K4.

[0232] During the process of the door 30 opening from G2 to G5, the first hinge shaft 41 moves in a straight line relative to the guide groove towards the door side wall 32 and the front wall 31. The second hinge shaft 42 first moves relative to the seventh guide segment K7, and then moves relative to the first guide segment K1. The third hinge shaft 43 first moves relative to the fourth guide segment K4, and then moves relative to the fifth guide segment K5.

[0233] Door 30 is opened from G5 to G 10 During the process, the first hinge shaft 41 moves in a straight line away from the door side wall 32 and the front wall 31 relative to the guide groove. The second hinge shaft 42 moves first relative to the first guide section K1, then relative to the second guide section K2, and then relative to the third guide section K3. The third hinge shaft 43 moves first relative to the fifth guide section K5, and then relative to the sixth guide section K6.

[0234] In summary, φ=G2 and φ=G5 will open door 30 from the closed state to G. max =G 10 The process is divided into three stages. The following explanation uses the door body 30 (guide groove / guide slot) as a stationary reference point, focusing on the relative movement of these three stages from the perspective of the mating relationships between the first hinge shaft 41 and the guide groove, and between the second hinge shaft 42 and the third hinge shaft 43 and the guide groove:

[0235] The first stage, combined with Figures 7-9 ,like Figures 19-20 As shown, the process of the door 30 rotating from the closed state to G2.

[0236] In this first stage, the door 30 opens sequentially from 0° through G1 to G2. During this process, the first central axis I moves linearly along the guide trajectory line S of the guide groove in a direction away from the door side wall 32 and the front wall 31; the second hinge axis 42 moves relative to the seventh guide segment K7; and the third hinge axis 43 moves relative to the fourth guide segment K4. When the door 30 opens to G2, the first hinge axis 41 moves to the second guide position I2 of the guide trajectory line S.

[0237] The opening process in the first stage described above is illustrated with reference to door 30 (guide groove / guide channel).

[0238] When the door 30 opens from 0° to G2, the axis triangle IEF rotates clockwise from I0E0F0 and moves sequentially towards the side wall 32 and front wall 31, to I1E1F1, I2E2F2, and I2E2F2. Since the axis triangle IEF is located on the hinge plate 40, it represents the movement of the housing 10. Therefore, with the door 30 (guide groove / guide channel) as the reference, the housing 10 opens clockwise relative to the door 30 and moves a certain distance away from the side wall 32 and front wall 31.

[0239] In summary, during the process of opening the door 30 from the closed state to G2, with the door 30 (guide groove / guide channel) as the reference frame, the housing 10 relative to the door 30 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31. Based on the relativity of motion, with the housing 10 as the reference frame, during the process of opening the door 30 from the closed state to G2, the door 30 relative to the housing 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31.

[0240] The second stage, combined with Figures 9-12 See Figure 19 , Figure 21 As shown, the process of door 30 being rotated open from G2 to G5.

[0241] In this second stage, the door 30 opens sequentially from G2 through G3 and G4 to G5. During this process, the first central axis I moves linearly along the guide trajectory line S of the guide groove towards the door side wall 32 and the front wall 31; the second hinge axis 42 first moves relative to the seventh guide segment K7, and then relative to the first guide segment K1; the third hinge axis 43 first moves relative to the fourth guide segment K4, and then relative to the fifth guide segment K5. When the door 30 opens to G5, the first hinge axis 41 moves to the endpoint of the guide trajectory line S near the door side wall 32 and the front wall 31—the fifth guide position I5.

[0242] The second stage of the opening process described above is illustrated with reference to door 30 (guide groove / guide channel).

[0243] When door 30 opens from G2 to G5, the axis triangle IEF rotates clockwise from I2E2F2 and moves sequentially towards the side wall 32 and front wall 31 of the door to I3E3F3, I4E4F4, and I5E5F5 (I2E2F2→I3E3F3→I4E4F4→I5E5F5). Since the axis triangle IEF is set on the hinge plate 40, it represents the movement of the housing 10. Therefore, with door 30 (guide groove / guide channel) as the reference, housing 10 opens clockwise relative to door 30 and moves a certain distance towards the side wall 32 and front wall 31 of the door. In summary, during the opening process of door 30 from G2 to G5, with door 30 (guide groove / guide channel) as the reference frame, the housing 10 relative to door 30 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32, and a displacement parallel to the side wall 32 and pointing towards the front wall 31. Based on the relativity of motion, with housing 10 as the reference frame, during the opening process of door 30 from G2 to G5, door 30 relative to housing 10 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31.

[0244] The third stage, combined with Figures 12-17 ,like Figure 19 , Figures 22-23 As shown, door 30 is rotated open from G5 to G... max =G 10 During the process.

[0245] In this third stage, door 30 is opened sequentially from G5 through G6, G7, G8, and G9 to G. 10 During this process, the first central axis I moves in a straight line along the guide trajectory line S of the guide groove in a direction away from the door side wall 32 and the front wall 31; the second hinge axis 42 moves first relative to the first guide segment K1, then relative to the second guide segment K2, and then relative to the third guide segment K3; the third hinge axis 43 moves first relative to the fifth guide segment K5, and then relative to the sixth guide segment K6.

[0246] The opening process in the third stage described above is illustrated with reference to door 30 (guide groove / guide channel).

[0247] Door 30 is opened from G5 to G 10 At that time, the axial triangle IEF rotates clockwise from I5E5F5 and moves sequentially to I6E6F6, I7E7F7, I8E8F8, I9E9F9, and I... 10 E 10 F 10 (I6E6F6→I7E7F7→I8E8F8→I9E9F9→I) 10 E 10 F10 Since the axis triangle IEF is set on the hinge plate 40, the axis triangle IEF represents the movement of the housing 10. Therefore, with the door 30 (guide groove / guide channel) as the reference, the housing 10 opens clockwise relative to the door 30 and moves a certain distance away from the door side wall 32 and the front wall 31.

[0248] In summary, door 30 is opened from G5 to G 10 During the process, with the door body 30 (guide groove / guide channel) as a reference, the box body 10 relative to the door body 30 has a displacement parallel to the rear wall 33 and pointing away from the side wall 32, and a displacement parallel to the side wall 32 and pointing away from the front wall 31. Based on the relativity of motion, with the box body 10 as a reference, the door body 30 opens from G5 to G... 10 During the process, the door 30 has a displacement relative to the box 10 that is parallel to the rear wall 33 and points towards the side wall 32, and a displacement that is parallel to the side wall 32 and points towards the front wall 31.

[0249] Based on the situations described in the first, second, and third stages, it can be concluded that, according to the relativity of motion, with the box 10 as the reference frame, the door 30 has a displacement component parallel to the rear wall 33 and a displacement component parallel to the side wall 32 relative to the box 10. The displacement component parallel to the rear wall 33 is denoted as the first direction displacement. The displacement component parallel to the door sidewall 32 in the second direction. During different opening stages of the door 30, the displacement in the first direction... Second direction displacement The meanings can differ.

[0250] In the first and third stages above, the displacement in the first direction Displacement in the second direction, pointing towards the side wall 32 of the door. It points towards the side of the front wall 31. In the second stage, the displacement in the first direction... Displacement in the second direction, pointing away from the side wall 32 of the door. Pointing to the side away from the front wall 31.

[0251] It should be added that "pointing to the side wall 32" refers to the direction from the end of the door body 30 opposite to the side wall 32 to the side wall 32;

[0252] "pointing away from the side wall 32 of the door" means that it points from the side wall 32 of the door to the opposite end of the door body 30 to the side wall 32 of the door;

[0253] "pointing towards the side of the front wall 31" refers to the direction from the back wall 33 of the door to the side of the front wall 31 of the door;

[0254] "Pointing towards the side away from the front wall 31" refers to the direction from the front wall 31 towards the rear wall 33. Additionally, it should be noted that the displacement in the first direction mentioned above... Second direction displacement All of these are instantaneous relative displacements, used to illustrate the current direction of movement of the door 30 relative to the box 10.

[0255] See Figures 34-39 As shown; within the plane of the top wall of the housing 10, on the side of the housing 10 closest to the door 30, a displacement coordinate system AOB is established. Specifically, in the displacement coordinate system AOB, OB is perpendicular to the plane of the pick-up / placement opening, and B is located on the side of O away from the pick-up / placement opening (front side); OA is parallel to the plane of the pick-up / placement opening, and A is located on the side of O away from the side wall of the second body (outer side). That is, in the displacement coordinate system AOB, the direction from the side wall of the second body to the side wall of the first body is positive, and the direction from the pick-up / placement opening to the front wall 31 of the door 30 when it is closed (from back to front) is positive. It should be noted that during the opening of the door 30, the displacement coordinate system AOB remains stationary relative to the housing 10 and does not move with the opening of the door 30.

[0256] (1) such as Figures 34-38 As shown, during the process of the door 30 opening from the closed state to 90°, as the door 30 rotates counterclockwise relative to the housing 10, the door side wall 32, the door rear wall 33, and the door front wall 31 also rotate counterclockwise during this opening phase. In the plane of the top wall of the housing 10, the door side wall 32 extends outward and forward 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 rear wall 33 extends inward and forward along the direction from the door side wall 32 to the end of the door 30 opposite to the door side wall 32.

[0257] During the opening process described above (opening from the closed state to 90°), the door sidewall 32, initially parallel to the reference plane M0, rotates counterclockwise. The angle between the door sidewall 32 and the plane containing the retrieval opening gradually decreases, while the angle between the door sidewall 32 and the reference plane M0 gradually increases. That is, as the door 30 opens from the closed state to 90°, relative to the housing 10, along the direction from the second side edge N to the first side edge W, the door sidewall 32 extends away from the second sidewall and the retrieval opening. Simultaneously, as the opening angle of the door 30 increases, the angle between the door rear wall 33 and the plane containing the retrieval opening gradually increases, while the angle between the door rear wall 33 and the reference plane M0 gradually decreases. That is, as the door 30 opens from the closed state to 90°, relative to the housing 10, along the direction from the door sidewall 32 to the opposite end of the door 30, the door rear wall 33 extends away from the first sidewall and the retrieval opening.

[0258] (1.1) Based on the description of the displacement direction of the door 30 relative to the box 10 during the process of the door 30 opening from the closed state to G2 (G2 < 90°), it can be seen that: during the process of the door 30 opening from the closed state to G2, with the box 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing towards the side wall 32 of the door. The second direction displacement is parallel to the side wall 32 of the door and points towards the front wall 31 of the door. That is, displacement in the first direction. The second direction displacement points to the outer rear side (outward and rearward side) of the housing 10. Pointing to the outer front side (outward and forward side) of the housing 10.

[0259] like Figures 34-35 As shown, in the displacement coordinate system AOB, during the process of the door 30 opening from the closed state to G2, the first direction displacement of the door 30 is... Located in the fourth quadrant (A>0, B<0), displacement in the second direction Located in the first quadrant (A>0, B>0). Displacement in the first direction. Second direction displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the first direction The displacement component on axis A is >0, the displacement component on the B-axis is <0; displacement in the second direction The displacement component on axis A is >0, the displacement component on the B-axis is >0. Among them, the trajectory feature settings of this invention include: Then there is, = + >0, = + >0. That is, during the process of the door 30 opening from the closed state to G2, in the displacement coordinate system AOB, the door 30 has a first component displacement. >0 and second displacement >0. Therefore, it can be concluded that: relative to the box 10, the door 30 has a tendency to move along the positive direction of the A axis and towards the positive direction of the B axis; that is, during the process of the door 30 opening from the closed state to G2 (G2 < 90°), the door 30 has a tendency to move outward and forward relative to the box 10.

[0260] (1.2) Based on the aforementioned description of the displacement direction of the door 30 relative to the box 10 during the process of the door 30 opening from G2 to G5 (G2 < G5 < 90°), it can be seen that: during the process of the door 30 opening from G2 to G5, with the box 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 of the door and pointing away from the side wall 32 of the door. The second direction displacement is parallel to the side wall 32 of the door and points away from the front wall 31 of the door. That is, displacement in the first direction. The second direction displacement points to the inner front side (inward and forward side) of the housing 10. Pointing to the inner rear side (inward and rearward side) of housing 10.

[0261] like Figure 34 and Figure 36 As shown, in the displacement coordinate system AOB, during the process of the door 30 opening from G2 to G5, the first direction displacement of the door 30 is... Located in the second quadrant (A < 0, B > 0), displacement in the second direction Located in the third quadrant (A < 0, B < 0). Displacement in the first direction. Second direction displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the first direction The displacement component on axis A is <0, the component displacement on the B-axis is >0; displacement in the second direction The displacement component on axis A is 0, the displacement component on the B-axis is <0. Wherein, the trajectory feature settings of this invention include: Then there is, = + <0, = + >0. That is, during the process of the door 30 opening from G2 to G5, in the displacement coordinate system AOB, the door 30 has a first component displacement. <0 and second displacement >0. Therefore, it can be concluded that: relative to the box 10, the door 30 has a tendency to move in the negative direction of the A axis and in the positive direction of the B axis; that is, during the process of the door 30 opening from G2 to G5, the door 30 has a tendency to move inward and forward relative to the box 10.

[0262] (1.3) Based on the aforementioned description of the displacement direction of the door 30 relative to the box 10 during the process of the door 30 opening from G5 (G5 < 90°) to G8 = 90°, it can be seen that: during the process of the door 30 opening from G5 (G5 < 90°) to G8 = 90°, with the box 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. The second direction displacement is parallel to the side wall 32 of the door and points towards the front wall 31 of the door. That is, displacement in the first direction. The second direction displacement points to the outer rear side (outward and rearward side) of the housing 10. Pointing to the outer front side (outward and forward side) of the housing 10.

[0263] Such as 34 and Figure 37 As shown, in the displacement coordinate system AOB, during the process of the door 30 opening from G5 to 90°, the first direction displacement of the door 30 is... Located in the fourth quadrant (A>0, B<0), displacement in the second direction Located in the first quadrant (A>0, B>0). Displacement in the first direction. Second direction displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the first direction The displacement component on axis A is >0, the displacement component on the B-axis is <0; displacement in the second direction The displacement component on axis A is >0, the displacement component on the B-axis is >0. Among them, the trajectory feature settings of this invention include: Then there is, = + >0, = + <0. That is, during the process of the door body 30 moving from G5 to 90°, in the displacement coordinate system AOB, the door body 30 has a first component displacement. >0 and second displacement <0. Therefore, it can be concluded that: relative to the box 10, the door 30 has a tendency to move in the positive direction of the A axis and in the negative direction of the B axis; that is, during the process of opening the door 30 from G5 to 90°, the door 30 has a tendency to move outward and backward relative to the box 10.

[0264] (2) For example Figure 9As shown, when the door 30 is opened to 90°, the door side wall 32 is parallel to the plane where the retrieval 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 retrieval 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.

[0265] Based on the description of the displacement direction of the door 30 relative to the box 10 during the opening process of the door 30 in the first to third stages, it can be concluded that when the door 30 is opened to 90°, with the box 10 as the reference point, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. The second direction displacement is parallel to the side wall 32 of the door and points towards the front wall 31 of the door. That is, displacement in the first direction. The displacement is directed towards the rear side of housing 10 in the second direction. Pointing to the outside of housing 10.

[0266] like Figure 38 As shown, when the door 30 is opened to 90°, in the displacement coordinate system AOB, the displacement of the door 30 in the first direction is... Displacement along the B-axis and pointing in the negative direction of the B-axis, in the second direction. Displacement along axis A and pointing in the positive direction of axis A. Displacement in the first direction. Second direction displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the first direction The displacement component on axis A is =0, the displacement component on the B-axis is = <0; displacement in the second direction The displacement component on axis A is = >0, the displacement component on the B-axis is =0. Where, = + = >0, = + = <0. That is, when the door 30 is opened to 90°, in the displacement coordinate system AOB, the door 30 has a first component displacement. >0 and second displacement <0; From this, we can conclude that: relative to the box 10, the door 30 has a tendency to move in the positive direction along the A axis and in the negative direction along the B axis; that is, when the door 30 is opened at 90°, the door 30 has a tendency to move outward and backward relative to the box 10.

[0267] (3) such as Figures 9-12 As shown, when the door 30 is rotated open from 90° to G... 10 (G) 10 During the process of opening the door (>90°), as the door 30 rotates counterclockwise relative to the box 10, the door sidewall 32 also rotates counterclockwise during this opening process. In the plane where the top wall of the box 10 is located, the door sidewall 32 extends outward and backward along the direction from the second side edge N to the first side edge W; the door rear wall 33 extends outward and forward along the direction from the door sidewall 32 to the end of the door 30 opposite to the door sidewall 32.

[0268] During the opening process described above, the door side wall 32 begins to rotate counterclockwise from a position perpendicular to the reference plane M0. The angle between the door side wall 32 and the plane containing the retrieval opening gradually increases, while the angle between the door side wall 32 and the reference plane M0 gradually decreases. That is, as the door body 30 rotates open from 90° to G... 10 During the process, relative to the housing 10, along the direction from the second side edge N to the first side edge W, the door sidewall 32 extends away from the second sidewall and closer to the access opening. Simultaneously, the angle between the door rear wall 33 and the plane containing the access opening gradually decreases, while the angle between it and the reference plane M0 gradually increases; that is, as the door 30 rotates open from 90° to G... 10 During the process, relative to the box 10, along the direction from the door side wall 32 to the end of the door body 30 opposite to the door side wall 32, the rear wall 33 of the door extends away from the second body side wall and the loading and unloading port.

[0269] Door 30 rotates 90° to open to G 10 During the process, with the box body 10 as a reference, the door body 30 has a first directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. The second direction displacement is parallel to the side wall 32 of the door and points towards the front wall 31 of the door. That is, displacement in the first direction. The second direction displacement points to the inner rear side (inward and rearward side) of the housing 10. Pointing to the outer rear side of housing 10 (outward and rearward side).

[0270] like Figure 34 and Figure 39 As shown, in the displacement coordinate system AOB, the door body 30 moves from 90° to G. 10 During the opening process, the door body 30 is displaced in the first direction. Located in the third quadrant (A<0, B<0), displacement in the second direction Located in the fourth quadrant (A > 0, B < 0). Displacement in the first direction. Second direction displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the first direction The displacement component on axis A is <0, the component displacement on the B-axis is <0; displacement in the second direction The displacement component on axis A is >0, the displacement component on the B-axis is <0. Wherein, the trajectory feature settings of this invention include: Then there is, = + >0, = + <0. That is, the door 30 moves from 90° to G. 10 During the process, in the displacement coordinate system AOB, the gate body 30 has a first component displacement. >0 and second displacement <0. Therefore, it can be concluded that: relative to the box 10, the door 30 has a tendency to move in the positive direction of the A axis and in the negative direction of the B axis; that is, during the process of opening the door 30 from G5 to 90°, the door 30 has a tendency to move outward and backward relative to the box 10.

[0271] In summary, door 30 opens from the closed state to G. 10 (G) 10 During the entire process (>90°), the movement of the door 30 relative to the box 10 is divided into three stages: the door 30 first moves outward, then inward, and then outward again.

[0272] It should be noted that this implementation only refers to some angles within the range of 0~90°, 90°, and 90°~G. max =G 10 Some angles within the range are used as representatives to illustrate the overall movement trend, but they can represent the movement trend within the corresponding range, and can illustrate that the hinge assembly with the above trajectory characteristics of the present invention can make the door 30 have an outward → inward → outward movement trend during the opening process.

[0273] In this embodiment, the door 30 tends to move outward during the first stage of opening. Specifically, the first hinge shaft 41 moves a certain distance away from the door side wall 32 and the front wall 31 relative to the guide groove, causing the door 30 to move outward a certain distance. During the process of the door 30 rotating open from the closed state to G2, while the first hinge shaft 41 moves away from the door side wall 32 and the front wall 31 relative to the guide groove, the second hinge shaft 42 moves away from the door side wall 32 and closer to the front wall 31 relative to the guide groove, and the third hinge shaft 43 moves away from the door side wall 32 and the front wall 31 relative to the guide groove. In addition, in this embodiment, during the process of the door 30 opening from the closed state to G2, the door 30 moves inward and forward a certain distance simultaneously, so that the door 30 quickly moves away from the housing 10, effectively avoiding squeezing the door seal 5.

[0274] In this embodiment, the second stage of door 30 opening has a tendency to move inward. Specifically, during the process of door 30 rotating open from G2 to G5, the first hinge shaft 41 moves a certain distance relative to the guide groove towards the door side wall 32 and the front wall 31, so that door 30 moves inward a certain distance. In some embodiments of this application, while the first hinge shaft 41 moves relative to the guide groove towards the door side wall 32 and the front wall 31, the second hinge shaft 42 moves relative to the guide groove away from the door side wall 32 and towards the front wall 31, and the third hinge shaft 43 moves relative to the guide groove towards the door side wall 32 and away from the front wall 31. The above arrangement causes door 30 to move inward during the process of rotating open from G2 to G5. The above arrangement is suitable for the scenario of refrigerators being installed in a cabinet for recessed installation. When the door 30 is opened, it moves inward, which can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door 30. It limits the distance of the first side edge W beyond the reference plane M0 to not exceed the distance between the cabinet and the side wall of the refrigerator body, effectively avoiding interference between the door 30 and the cabinet 100 when the door is opened, further reducing the limitation of the cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of the cabinet 100 space.

[0275] In this embodiment, the second stage is set up on the premise that the door 30 is moved outward in the first stage, which can simultaneously take into account the different needs of the two stages and increase the flexibility and applicability of the refrigerator.

[0276] It should be noted that in some embodiments of this application, the second stage can be configured independently and is not limited by the outward movement of the door 30 during the opening process from the closed state to G2 in the first stage. The door 30's opening process from the closed state to G2 in conjunction with the second stage can differ from the first stage. For example, it can be configured that the door 30 rotates around the first hinge axis 41 during the opening process from the closed state to G2. Alternatively, it can be configured that the door 30 also has an inward tendency during the opening process from the closed state to G2. Similarly, the first stage is not limited by the form of the second stage.

[0277] In this embodiment, the door 30 has an outward tendency during the third stage of opening; that is, the door 30 has an outward tendency during the continued opening process of G5. Specifically, the door 30 opens from G5 to G... 10 During the process, the first hinge shaft 41 moves a certain distance away from the door side wall 32 and the front wall 31 relative to the guide groove, so that the door 30 moves a certain distance outward. While the first hinge shaft 41 moves away from the door side wall 32 and the front wall 31 relative to the guide groove, the second hinge shaft 42 first moves away from the door side wall 32 and closer to the front wall 31 relative to the guide groove, and then moves away from the door side wall 32 and the front wall 31. The third hinge shaft 43 first moves closer to the door side wall 32 and away from the front wall 31 relative to the guide groove, and then moves closer to the door side wall 32 and the front wall 31. In the above configuration, G5 < 90°. That is, the door 30 has a tendency to move outward during the process of opening to 90°; this reduces the obstruction of the access opening by the door 30, making it easier to retrieve and place items. It also increases the lateral width of the drawer and increases the space utilization of the drawer while ensuring that the drawer placed in the storage room can be pulled out. In addition, when used in conjunction with the second stage, in the case of the refrigerator being installed in a built-in cabinet, the later outward movement of the door 30 can compensate for the earlier inward movement of the door 30 to avoid the cabinet, so as to make full use of the horizontal space of the cabinet and reduce the obstruction of the access opening caused by the earlier inward movement of the door 30.

[0278] It should be noted that in some embodiments of this application, the third stage can be configured independently, and is not limited by the outward movement of the door 30 during the process of opening the door 30 from the closed state to G2 in the first stage, nor by the inward movement of the door 30 during the process of rotating the door 30 from G2 to G5 in the second stage. The setting for the door 30 to open from the closed state to G2 in conjunction with the third stage setting can be different from the setting of the first stage; similarly, the setting for the door 30 to open from G2 to G5 in conjunction with the third stage setting can be different from the setting of the second stage.

[0279] Combination Figures 40-49 As shown, assuming the door 30 rotates around the first central axis I of the previous state to the position of the adjacent subsequent state (the door 30 is represented by a dashed line), during this movement, the rotation axis of the door 30 is fixed relative to the door 30. Then, under this movement trend, when the door 30 is open, the first side edge W is located at W' relative to the box 10; the second side edge N is located at N' relative to the box 10; and the side sealing edge H is located at H' relative to the box 10. Correspondingly, when the door 30 is opened to the subsequent state according to the trajectory in this embodiment (the door 30 is represented by a solid line), compared to its previous state, the rotation axis of the door 30 has changed relative to the door 30. At this time, the first side edge W is located at W relative to the box 10; the second side edge N is located at N relative to the box 10; and the side sealing edge H is located at H relative to the box 10. Figure 40 In the diagram, the position of the door 30 indicated by the dashed line is the position reached when the door 30 is simply rotated to G1 relative to the first central axis I (I0) of the door 30 when it is closed; the position of the door 30 indicated by the solid line is the position reached when it is rotated open to G1 according to the configuration of this invention. Figure 41 In the diagram, the dashed line indicates the position of door 30, which is the position reached when door 30 is opened to G1 using the rotation method of this invention, and then rotates simply to G2 with the first central axis I of door 30 (the first central axis I (I1) of the previous state) as the central axis; the solid line indicates the position of door 30, which is the position reached when it is rotated to G2 using the rotation method of this invention; similarly... Figures 42-49 This is a diagram comparing the positions of the two different opening methods described above at different opening angles.

[0280] By comparing the arrangement of the present invention with the simple rotation of the door body 30 around its first central axis I in its previous state, it can be seen that:

[0281] During the process of opening the door 30 from the closed state to G2, in this application, the positions W of the first side edges are all located on the side away from the second body sidewall and the retrieval opening; the positions N of the second side edges are all located on the side away from the second body sidewall and the retrieval opening; and the positions H of the side sealing edges are all located on the side away from the second body sidewall and the retrieval opening. That is, during the process of opening the door 30 from the closed state to G2, the door 30 has a tendency to move outward and forward.

[0282] During the process of opening the door 30 from G2 to G5, in this application, the positions W of the first side edges are all located on the side of W' closer to the side wall of the second body and away from the retrieval opening; the positions N of the second side edges are all located on the side of N' closer to the side wall of the second body and away from the retrieval opening; and the positions H of the side sealing edges are all located on the side of H' closer to the side wall of the second body and away from the retrieval opening. That is, during the process of opening the door 30 from G2 to G5, the door 30 has a tendency to move inward and forward.

[0283] Door 30 is opened from G5 to G 10 During the process, in this application, the position W of the first side edge is always located on the side of W' away from the side wall of the second body and close to the retrieval opening; the position N of the second side edge is always located on the side of N' away from the side wall of the second body and close to the retrieval opening; the position H of the side sealing edge is always located on the side of H' away from the side wall of the second body and close to the retrieval opening. That is, the door 30 is opened from G5 to G 10 During the process, the door 30 has a tendency to move outward and backward.

[0284] The movement trends in each of the above stages are consistent with the movement trends analyzed in the preceding stages.

[0285] It should be noted that the comparison between the current position of the door 30 in this invention and the assumed position of the door 30 when it is simply rotated around the first central axis I from the previous state in this invention to the opening angle of the door 30 in this invention is representative. It can represent the movement trend of the door 30 relative to the previous state during the opening process of the door 30 in this invention. Here, only some selected angles are used for comparison and explanation to illustrate the movement trend of the door 30 when it is opened.

[0286] It should be noted that the movement of the first hinge axis 41 relative to the guide part 50, and the movement of the second hinge axis 42 and the third hinge axis 43 relative to the guide part 60, can cause the door body 30 to move inward or outward in different stages; the length of the guide trajectory line K is not limited to having all stages; it can be provided with at least one stage of movement characteristics.

[0287] In some embodiments of this application, combined with Figures 7-18 As shown, a first reference plane M1 and a second reference plane M2 are also defined. (See also...) Figure 18 As shown, the first reference plane M1 is a plane parallel to the reference plane M0 and perpendicular to the plane containing the retrieval opening. The first reference plane M1 is the plane containing the side wall of the second body; that is, the first reference plane M1 is parallel to the side wall of the first body (reference plane M0); the second reference plane M2 is the plane containing the retrieval opening of the storage compartment. The first reference plane M1 and the second reference plane M2 do not move during the opening of the door 30 relative to the box 10, and are reference planes that remain stationary relative to the box 10.

[0288] During the opening of the door 30, the first side edge W moves along with the opening of the door 30, and its trajectory is recorded as the trajectory line of the first side edge. In the projection of the plane containing the top wall of the box 10, during the opening of the door 30, the first side edge W first moves away from the first reference plane M1 and closer to the second reference plane M2, and then moves closer to the first reference plane M1 and the second reference plane M2.

[0289] During the opening of the door 30, the second side edge N moves along with the opening of the door 30, and its trajectory is recorded as the trajectory line of the second side edge. In the projection of the plane containing the top wall of the box 10, during the opening of the door 30, the second side edge N first moves towards the first reference plane M1 and the second reference plane M2, and then moves towards the first reference plane M1 and away from the second reference plane M2.

[0290] As a configurable method, in the projection on the top wall of the enclosure 10, the door 30 is shown to open from the closed state to G. max During this process, the second side edge N moves along an arc. That is, in the projection of the top wall of the box 10, the door 30 opens from the closed state to G. max During the process, the trajectory formed by the movement of the second side edge N is an arc. The hinge assembly with the above trajectory characteristics can effectively detect the assembly accuracy and processing accuracy after the door 30 and the housing 10 are installed together, so that it can be adjusted in time to achieve a high-precision fit between the second hinge component on the door 30 and the first hinge component on the housing 10, and meet the complex motion requirements of finely controlling the door 30 to complete the rotation and move laterally (inward or outward).

[0291] During the opening of the door 30, the side sealing edge H moves along with the door 30, and its trajectory is recorded as the side sealing edge trajectory line. In the projection onto the plane containing the top wall of the housing 10, during the opening of the door 30, the side sealing edge H first moves towards the first reference plane M1 and the second reference plane M2, then moves towards the first reference plane M1 and away from the second reference plane M2, and finally moves away from both the first and second reference planes M1 and M2. This arrangement, with the side sealing edge H finally moving away from the first reference plane M1, reduces the obstruction of the access opening by the door 30.

[0292] As a configurable method, in the projection on the top wall of the enclosure 10, the door 30 is shown to open from the closed state to G. max During this process, the side sealing edge H moves along an arc. That is, in the projection on the top wall of the box 10, the door 30 opens from the closed state to G. maxDuring the process, the trajectory formed by the movement of the side sealing edge H is an arc. The hinge assembly with the above trajectory characteristics can effectively detect the assembly accuracy and processing accuracy after the door body 30 and the box body 10 are installed together, so that it can be adjusted in time to achieve a high-precision fit between the second hinge component on the door body 30 and the first hinge component on the box body 10, and meet the complex motion requirements of fine control of the door body 30 to complete the rotation and move laterally (inward or outward).

[0293] It should be noted that the trajectories formed by the movement of the second side edge N and the movement of the side sealing edge H are "circular arcs". This includes the standard circular arc in the standard mathematical definition (the part between any two points on a circle), as well as curves that deviate slightly from the standard circular arc in the standard mathematical definition due to processing errors, slight deformation or wear of the parts, or reserved gaps, or their own performance, but still have the characteristics of a circular arc (such as fluctuating around the circular arc with a small deviation).

[0294] In this embodiment, the straight line containing the side sealing edge H and the second side edge N in the projection of the top wall of the box 10 is denoted as HN. During the opening process of the door 30, when the door 30 opens from the closed state to G... 10 During the process, the second side edge N is located on the side of the side sealing edge H closest to the side wall of the first body. As a possible configuration, the door 30 opens to G. 10 At this time, HN is perpendicular to the second reference plane M2; on the one hand, this ensures that the door 30 has a sufficiently large maximum opening angle, and on the other hand, it prevents the second side edge N from moving to the side sealing edge H away from the first body sidewall as the door 30 opens and thus blocking the access opening.

[0295] In some embodiments of this application, the center of the circle containing the arc-shaped trajectory line of the second side edge within the plane of the top wall of the housing 10 is denoted as the center O of the second side edge. N The center of the circle containing the arc-shaped trajectory line of the side sealing edge is denoted as the center O of the side sealing edge. H The radius of the circle containing the trajectory of the second side edge is smaller than the radius of the circle containing the trajectory of the side sealing edge. The center O of the second side edge circle... N Located at the center O of the side sealing edge H The side furthest from the pick-up / drop-off port and closest to the side wall of the first body, with the center O of the second side edge. N Located on the side of the first central axis I away from the side wall of the first body and the pick-and-place port; the first central axis I is located at the center O of the side sealing edge. H The side furthest from the pick-up / drop-off port and closest to the side wall of the first body. That is, the first central axis I and the center O of the second side edge. N Side sealing edge center O H Sequentially moving away from the sidewall of the first body; the center O of the side sealing edge H First central axis I, second lateral edge center O N Move away from the plane where the pick-up and drop-off points are located in sequence.

[0296] Among them, the center O of the second lateral edge N Side sealing edge center O H Side sealing edge center O H They are adjacent to each other. Specifically, in the direction perpendicular to the plane containing the sidewall of the first body, the center O of the second side edge... N With the center O of the side sealing edge H The distance between them is any value between 0.2mm and 0.25mm; the first central axis I and the center O of the side sealing edge H The distance between them is any value between 0.3mm and 0.4mm. In the direction perpendicular to the plane containing the pick-up and drop-off openings, the center O of the second side edge... N With the center O of the side sealing edge H The distance between them is any value between 3mm and 3.5mm; the first central axis I and the center O of the side sealing edge H The distance between them is any value between 2mm and 2.5mm.

[0297] Example 2

[0298] In this second implementation, such as Figures 50-53 As shown, the refrigerator includes two doors 30 arranged opposite each other, which cooperate to open or close the access panel. Each of the two doors 30 has a side sealing strip 3 on the side away from its side wall 32. When the two doors 30 are closed, the side sealing strip 3 on one door 30 seals against the side sealing strip 3 on the other door 30; that is, when the two doors 30 are closed, the two side sealing strips 3 are pressed into the gap between the two doors 30 to effectively seal the space between the two doors 30 and the refrigerator body, preventing cold air from escaping.

[0299] In conjunction with the hinge assembly configuration in Embodiment 2, the hinge assembly in this embodiment possesses a first-stage motion characteristic (refer to Embodiment 1, where the door 30 moves outward during the process of opening from the closed state to G2, which will not be repeated here). That is, in this Embodiment 2, during the process of opening from the closed state to G2, the door 30 first moves outward, which can prevent one of the two oppositely arranged doors 30 from being opened and causing the other door 30 to be opened as well, effectively reducing cold loss; at the same time, it can effectively reduce the obstruction of the access opening by the door 30.

[0300] Example 3

[0301] Combination Figures 50-53 As shown, Figure 54In this third embodiment, the refrigerator also has two oppositely positioned doors 30, which work together to open or close the access hatch. Each of the two doors 30 has a side sealing strip 3 on the side furthest from its side wall 32. When both doors 30 are closed, the side sealing strip 3 on one door 30 seals against the side sealing strip 3 on the other door 30; that is, when both doors 30 are closed, the two side sealing strips 3 are pressed into the gap between the two doors 30 to effectively seal the space between the two doors 30 and the refrigerator body, preventing cold air from escaping. This arrangement is the same as in embodiment two.

[0302] Unlike Embodiment 2, the refrigerator in Embodiment 3 is suitable for use in situations where it is embedded in a cabinet.

[0303] Specifically, unlike Embodiment 2, the hinge assembly in Embodiment 3, combined with the hinge assembly in Embodiment 1, has overall motion characteristics in both a first stage and a second stage (see Embodiment 1, where the door 30 moves outward during the opening process from the closed state to G2; and moves inward during the rotational opening process from G2 to G5; these details will not be repeated here). That is, in Embodiment 3, the hinge assembly causes the door 30 to move outward in the first stage and then inward in the second stage during the opening process.

[0304] Specifically, in this third embodiment, during the process of opening from the closed state of door 30 to G2, door 30 first moves outward. As door 30 continues to open from G2, it tends to move inward. This arrangement serves two purposes: firstly, it allows door 30 to move outward initially to avoid pulling the other door 30 open, reducing cold loss; secondly, it allows the opened door 30 to move inward after the two doors separate, effectively compensating for the outward displacement of the first side edge W caused by the simple rotation of door 30. This limits the distance of the first side edge W beyond the reference plane M0 to not exceed the distance between the cabinet and the refrigerator's side wall, effectively preventing interference between door 30 and cabinet 100 when open, further reducing the limitations of cabinet 100 space on the size of the refrigerator it can accommodate, and improving the utilization rate of cabinet 100 space. Furthermore, by setting door 30 to continue moving inward during the process of opening to its maximum angle, it reduces the cabinet's limitation on the maximum opening angle of door 30, allowing the refrigerator door 30 installed in the cabinet to open to a larger angle.

[0305] Example 4

[0306] like Figures 55-63As shown in this fourth embodiment, the refrigerator includes two doors 30 arranged opposite each other, which cooperate to open or close the access panel. When both doors 30 are closed, a flip beam 9 is provided on the inner lining surface of one door 30 closest to the other. A guide rail 91 is provided on the top wall of the refrigerator's storage compartment, and the flip beam 9 can slide with the guide rail 91 to switch the angle of the flip beam 9 relative to the door 30. When both doors 30 are closed, the flip beam 9 seals the gap between the two doors 30 and the refrigerator body 10 to effectively prevent cold air from escaping.

[0307] Specifically, the flip beam 9 includes a door flip beam rear cover, which is connected to the door body 30 via a first door hinge and a second door hinge. The door flip beam rear cover and the two door hinges are elastically connected by torsion springs, with the first door hinge located above the second door hinge. A guide block 90 is fixed to the top of the door flip beam rear cover. The guide block 90 acts as a rotating component of the flip beam 9 and cooperates with the guide rail 91 to achieve switching of the flip beam 9 relative to different angles of the door body 30.

[0308] Both the door hinges and the rear cover of the door rotating beam have through holes for the torsion spring lever arms, which connect the upper and lower door hinges to the rear cover of the door rotating beam using the torsion springs. Specifically, the first door hinge is connected to the rear cover of the door rotating beam via a first torsion spring, and the second door hinge is connected to the rear cover of the door rotating beam via a second torsion spring. When the flip beam 9 rotates around the door hinges, the first and second torsion springs store or release elastic energy to ensure that the rear cover of the door rotating beam rotates stably and returns to its original position in a timely manner.

[0309] With the door 30 open, the flip beam 9 is tightly attached to one side of the door hinge and fixed to the inner lining of the door 30 due to the torsion of the torsion springs (first torsion spring and second torsion spring).

[0310] like Figures 61-63 As shown, when the door 30 closes from the open state, an external force is first applied to the door 30. Under the action of the external force, the door 30 gradually closes until it reaches an angle G. S At that time, the guide block 90 at the top of the flip beam 9 comes into contact with the guide rail 91.

[0311] When the door is closed to angle G at 30 degrees... S As external force continues to be applied, the door 30 continues to move in the closing direction, and the guide block 90 at the top of the flip beam 9 enters the guide rail 91, where the guide block 90 interacts with the guide rail 91. During this closing process, the guide block 90 begins to flip due to the pressure from the guide rail 91, and the torsion spring is compressed radially. When the flip beam 9 flips past G' FThe torsion spring reaches its critical value. Then, the torsion spring begins to extend, releasing its torque to quickly rotate the flip beam 9 into position; until the door 30 closes, at which point the torsion spring torque is released, returning to a relaxed state. After the door 30 closes, the flip beam 9 contacts the sealing strip on the door 30, effectively preventing cold air from escaping between the two hinged doors. However, if the flip beam 9 rotates to G' F When the external force is removed, the torsion spring does not reach its critical value, causing the guide block 90 at the top of the flip beam to enter the guide rail 91 on the cabinet but not to complete the flipping effectively and get stuck. The flip beam cannot automatically complete the flipping, resulting in the door 30 with the flip beam not being able to close properly, causing the refrigerator's low-temperature storage to fail.

[0312] In this fourth embodiment, the first hinge member has a first mating portion located at the end away from the side wall of the first body, and the door body 30 has a second mating portion at the end near the first hinge member. The second mating portion is used to cooperate with the first mating portion to lock and unlock the door body 30 and the housing 10. As an alternative configuration, the second mating portion is located on the side of the second hinge member away from the door side wall 32.

[0313] When the door 30 is closed from the open state, an external force is first applied to the door 30, and under the action of the external force, the door 30 gradually closes; as the door 30 rotates to close, the free end of the second mating part gradually approaches the first mating part.

[0314] When the door is closed to angle G at 30 degrees B0 At that time, the second mating part abuts against the first mating part; then, under the action of external force, the door 30 continues to close, the first mating part and the second mating part interact with each other, the second mating part undergoes elastic deformation, under the combined action of external force and the force of the first mating part, the second mating part and the first mating part gradually approach each other, and the elastic deformation of the second mating part gradually increases.

[0315] When the door is closed to angle G at 30 degrees B1 At that time, the elastic deformation of the second mating part reaches the maximum deformation during the closing process of the door body 30.

[0316] When the door is closed at 30, G is reached. B1 Continuing to move in the closing direction, the elastic energy stored in the earlier deformation of the second mating part is released. Under the combined action of the second mating part and the first mating part, the second mating part returns to its relaxed state, and the door 30 quickly and automatically closes into place. Until the door 30 is closed, the second mating part locks with the first mating part, achieving locking between the door 30 and the housing 10. (G) B0 >G B1 As a configurable method, G B0 Set to any value between 15° and 20°, G B1Set to any value between 3° and 8°. In summary, when the door is closed at 30°, G is achieved. B1 Then, under the interaction of the first mating part and the second mating part, the door 30 closes automatically.

[0317] It should be noted that during the closing process of the door 30, the external force continues to act until the door 30 is closed to G. B1 Then, after the door 30 has rotated and closed to the point where the elastic deformation of the second mating part is at its maximum, the external force is removed, and the door 30 can automatically complete the flipping process. And when the door 30 is closed to G... B1 After the external force is removed, the door 30 has inertial force, which also has the characteristic of keeping the door 30 in its original closing motion tendency.

[0318] In summary, the door body 30 is determined by angle G. B0 Close to angle G B1 During the process, under the combined action of external force and the first mating part, the second mating part undergoes elastic deformation.

[0319] When the door is closed to G B1 At that time, the elastic deformation of the second mating part reaches the maximum deformation during the closing process of the door body 30.

[0320] In the gate body 30, G B1 During the process of closing, the external force is removed, the elastic force of the second mating part is released, and the door 30 closes quickly and automatically.

[0321] That is, in this fourth embodiment, with the structural arrangement of the first mating part and the second mating part, the door body 30 is formed by G B1 During the process of closing, the door 30 has the characteristic of automatically closing.

[0322] Based on the hinge assembly configuration in Embodiment 2, the hinge assembly in this embodiment exhibits a first-stage motion characteristic (see the stage in Embodiment 2 where the door opens from the closed state to Q2, which will not be repeated here). That is, in this Embodiment 4, during the process of opening the door 30 from the closed state to G2, the door 30 moves outward. Correspondingly, during the process of returning the door 30 to the closed state from G2, the door 30 tends to move inward.

[0323] As a configurable method, G B1 >G2. That is, during the automatic closing process of door 30 (by G... B1 During the continued closing process, the door 30 tends to move inward; as it moves inward, it exerts an inward force on the tilting beam 9, which causes the tilting beam to tilt. In this embodiment, the door 30 is... B1During the continued closing process, it has the characteristic of automatic closing, and the door 30 continues to move inward. Therefore, the inward movement of the door 30 exerts an inward force on the flip beam 9, which can ensure that the flip beam 9 flips into place and the door 30 is closed in place.

[0324] In some embodiments of this application, reference is made to Figures 60 to 63 The door body 30 includes a mounting block, which is mounted on the door body 30 at a position opposite to the hinge plate 40. A guide portion 60 and a second mating portion are formed on the mounting block. A first mating portion is formed on the side of the extension 402 of the hinge plate 40 away from the door sidewall 32.

[0325] Specific reference Figures 60-63 The door body 30 has a door end cover 38. In this embodiment, the mounting block disposed at the lower end of the door body 30 is used as an example for explanation. (In conjunction with...) Figures 60-63 As shown, a guide groove is formed on the mounting block. The guide groove includes a groove bottom and a circumferential groove wall surrounding the edge of the groove bottom; a guide groove is formed on the groove bottom of the guide groove, and the circumferential groove wall defines a guide trajectory line K. The door body 30 includes a door end cover 38, on which a receiving groove 37 is formed for fixing the mounting block. As one possible implementation, the mounting block is placed in the receiving groove 37, and then the mounting block is fastened to the door body 30 by a first fastener. Specifically, the first fastener can be a screw, etc.

[0326] In one feasible embodiment, the mounting block includes a plate 81, which is disposed around the outer peripheral sidewall of the guide groove. In this embodiment, a first fastener connecting the mounting block and the receiving groove 37 fixes the plate 81 to the door 30. Alternatively, multiple first fasteners may be distributed around the guide groove.

[0327] As one possible configuration, the bottom wall of the receiving groove 37 near the side wall 32 of the door is formed with a first receiving portion recessed into the inner cavity of the door body 30. The guide groove is at least partially received into the first receiving portion, and the bottom of the guide groove cooperates with the inner wall of the first receiving portion. The plate 81 cooperates with the bottom wall of the receiving groove 37 to effectively define the position of the guide groove.

[0328] As one possible configuration, a second receiving portion is formed on the bottom wall of the first receiving portion, recessed into the inner cavity of the door body 30. A guide groove is installed in the second receiving portion and cooperates with the inner wall of the second receiving portion to limit the guide groove.

[0329] In some embodiments of this application, the second mating part on the mounting block is configured as a locking structure. Specifically, the second mating part includes a locking hook 82 located on the side of the plate 81 away from the door sidewall 32. The locking hook 82 extends away from the door sidewall 32 and bends towards the side close to the door rear wall 33 and the door sidewall 32. The opening of the locking hook 82 faces the plate 81 (the opening of the locking hook 82 faces the door sidewall 32), and the free end of the locking hook 82 is located on the side close to the door rear wall 33.

[0330] A stop 403 is provided on the side of the hinge plate 40 away from the first body sidewall. A hook gap 404 is formed on the side of the stop 403 near the cabinet 10. When the door 30 is closed, the free end of the lock hook 82 is received in the hook gap 404, and the stop 403 is located in the lock hook 82. The lock hook 82 on the door 30 hooks the stop 403 on the hinge plate 40, thereby locking the door 30 and preventing the door 30 from not closing tightly and affecting the refrigeration and freezing effect of the refrigerator. When the door 30 is opened, the lock hook 82 is deformed by force and overcomes the obstruction of the stop 403, thereby disengaging from the stop 403.

[0331] The locking hook 82 may include a root joint 83 and a hook portion 84. The root joint 83 is connected to the plate 81, and the hook portion 84 is connected to the root joint 83 and bends towards the side closer to the rear wall 33 and the side wall 32 of the door. A screw passes through the root joint 83 and connects to the door body 30 to strengthen the connection between the root joint 83 and the door body 30, so that only the hook portion 84 deforms when the locking hook 82 disengages from the stop portion 403.

[0332] It can be configured that the free ends of the hook part 84 and the stop part 403 are both arc-shaped, which is conducive to the hook part 84 smoothly hooking onto or disengaging from the stop part 403 along the arc.

[0333] like Figures 61-63 As shown, when the door 30 is closed from the open state, it gradually closes under the action of external force; as the door 30 rotates to close, the free end of the hook part 84 gradually approaches the stop part 403. Figure 62 As shown, when door 30 is closed to G B0 At that time, the hook part 84 abuts against the stop part 403; then, under the action of external force, the door 30 continues to close, the stop part 403 and the hook part 84 interact, the hook part 84 undergoes elastic deformation, and under the combined action of the external force and the force of the stop part 403, the moving hook part 84 gradually enters the hook gap 404 (that is, the stop part 403 enters the hook part 84). Figure 63 As shown, when door 30 is closed to G B1 At that time, the elastic deformation of the hook part 84 reaches the maximum deformation of the door 30 during the closing process. When the door 30 is closed, it reaches G. B1Subsequently, the elastic energy stored in the hook part 84 during its initial deformation is gradually released. Under the combined action of the hook and stop part 403, the hook part 84 returns to its relaxed state and further enters the hook gap 404, causing the door 30 to quickly and automatically close into place. Until the door 30 is closed, the lock hook 82 locks with the hinge plate 40, achieving the locking of the door 30 and the housing 10. That is, the door 30 is closed to G. B1 Afterwards, the door 30 has the feature of automatic closing.

[0334] Example 5

[0335] The refrigerator in this fifth embodiment also includes two doors 30 arranged opposite each other, which work together to open or close the access hatch. When both doors 30 are closed, a flip beam 9 is provided on the inner lining surface of one door 30 closest to the other. A guide rail 91 is provided on the top wall of the refrigerator's storage compartment, and the flip beam 9 can slide with the guide rail 91 to switch the angle of the flip beam 9 relative to the door 30. When both doors 30 are closed, the flip beam 9 seals the gap between the two doors 30 and the cabinet 10 to effectively prevent cold air from escaping. Its arrangement is the same as in embodiment four.

[0336] Furthermore, similar to Embodiment 4, Embodiment 5 also includes a first and a second mating part that cooperate to lock the door 30 and the housing 10 when the door 30 is closed. (Same as the arrangement in Embodiment 4)

[0337] And satisfy G B1 >G2. That is, during the automatic closing process of door 30 (by G... B1 During the continued closing process, there is a tendency to move inward, which ensures that the flip beam 9 flips into place, so that the door 30 is closed in place.

[0338] Unlike Example 4, as Figure 64 As shown, the refrigerator in this fifth embodiment is suitable for use in situations where it is embedded in a cabinet.

[0339] Specifically, unlike Embodiment 4, the hinge assembly in Embodiment 5, combined with the hinge assembly in Embodiment 2, has a first-stage and second-stage overall motion characteristic (see Embodiment 1, where the door 30 moves outward during the opening process from the closed state to G2; and moves inward during the rotational opening process from G2 to G5; these details will not be repeated here). That is, in Embodiment 5, the hinge assembly causes the door 30 to move outward in the first stage and then inward in the second stage during the opening process.

[0340] Specifically, in this fourth embodiment, during the process of opening from the closed state of door 30 to G2, door 30 first moves outward. As door 30 continues to open from G2, it tends to move inward. This arrangement, on the one hand, ensures that door 30, when opened from the closed state to G2, moves inward. B1 As the closing process continues, the door tends to move inward, ensuring that the flip beam 9 flips into place and the door 30 closes completely. On the other hand, during the opening process, after moving outward a certain distance, the door 30 moves inward, effectively compensating for the outward displacement of the first side edge W caused by simple rotation of the door 30. This limits the distance the first side edge W exceeds the reference plane M0 to no more than the distance between the cabinet and the refrigerator's side wall, effectively preventing interference between the door 30 and the cabinet 100 when open. This further reduces the limitations of the cabinet 100 space on the size of the refrigerator it can accommodate, improving the utilization rate of the cabinet 100 space. Furthermore, by setting the door 30 to continue moving inward during its maximum opening angle, the cabinet reduces the limitation on the maximum opening angle of the door 30, allowing the refrigerator door 30 installed in the cabinet to open to a larger angle.

[0341] Example 6

[0342] The difference between this sixth embodiment and the first embodiment is that, in this embodiment, the first stage of the door 30 opening from the closed state to the outward movement of G2 is not included. Specifically, the first hinge component in this embodiment is the same as that in the first embodiment, and will not be repeated here. Figures 65-67 As shown, in this sixth embodiment, the positions of the guide portion 60 and the guide portion 50 when the door 30 is closed can be the same as the positions of the guide portion 60 and the guide portion when the door 30 is opened to any angle G2 to G5 in the first embodiment. For ease of explanation, the example given is that the position of the guide portion 60 when the door 30 is closed is the same as the position of the guide portion 60 when the door 30 is opened to G2 in the first embodiment, and the position of the guide portion 50 when the door 30 is closed is the same as the position of the guide portion 50 when the door 30 is opened to G2 in the first embodiment. However, it should be noted that the settings in this application are not limited to G2.

[0343] Specifically, in this embodiment, the guide portion 60 on the door body 30 rotates clockwise by G2 relative to the guide portion 60 in Embodiment 1, and the guide portion 50 on the door body 30 rotates clockwise by G2 relative to the guide portion 50 in Embodiment 1.

[0344] Compared to Embodiment 1, where the angle θ between the guide portion 50 and the front wall 31 is set, in Embodiment 6, the angle between the guide portion 50 and the front wall 31 is θ-G2. It should be noted that in this embodiment, the angle between the guide portion 50 and the front wall 31 is not limited to θ-G2; as one possible arrangement, along the direction from the rear wall 33 to the front wall 31, the distance between the guide trajectory line S and the side wall 32 decreases linearly.

[0345] For consistency, the guide positions on the guide trajectory line S are the same as in Embodiment 1. The fifth guide position I5 is the endpoint of the guide trajectory line S near the door side wall 32, and the tenth guide position I... 10 The guide trajectory line S is positioned away from the endpoint of the door sidewall 32; the tenth guide position I 10 Located on the side of the fifth guide position I5 away from the door side wall 32 and the front wall 31, and the guide trajectory line S is a straight line. That is, the guide part 50 is an inclined straight line, and the guide groove is an inclined straight groove. Fifth guide position I5, sixth guide position I6, seventh guide position I7, eighth guide position I8, ninth guide position I9, tenth guide position I 10 Moving away from the side wall 32 and the front wall 31 in sequence, the second guide position I2, the third guide position I3, the fourth guide position I4, and the fifth guide position I5 move closer to the side wall 32 and the front wall 31 in sequence.

[0346] In this sixth embodiment, the guide trajectory line K can be configured to include a first guide segment K1, a second guide segment K2, a third guide segment K3, a fourth guide segment K4, a fifth guide segment K5, a sixth guide segment K6, a seventh guide segment K7, and an eighth guide segment K8 connected end to end in sequence; that is, the guide trajectory line K is a closed loop, and the guide groove is a closed annular groove, so as 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 guide groove. The connection point between the seventh guide segment K7 and the first guide segment K1 is denoted as the first connection position a; the connection point between the first guide segment K1 and the second guide segment K2 is denoted as the second connection position b; the connection point between the second guide segment K2 and the third guide segment K3 is denoted as the third connection position c; the connection point between the third guide segment K3 and the fourth guide segment K4 is denoted as the fourth connection position d; the connection point between the fourth guide segment K4 and the fifth guide segment K5 is denoted as the fifth connection position e; the connection point between the fifth guide segment K5 and the sixth guide segment K6 is denoted as the sixth connection position f; the connection point between the sixth guide segment K6 and the seventh guide segment K7 is denoted as the seventh connection position g; and the connection point between the seventh guide segment K7 and the eighth guide segment K8 is denoted as the eighth connection position h.

[0347] In this sixth embodiment, when the door 30 is closed, the first hinge shaft 41 is located at the second guide position I2 on the guide trajectory line S, the second hinge shaft 42 cooperates with the eighth guide segment K8, and the third hinge shaft 43 cooperates with the fifth guide segment K5.

[0348] In some embodiments of this application, when the door 30 is closed, the first hinge shaft 41 is located at the third guide position I3 on ​​the guide trajectory line S, the second hinge shaft 42 is engaged with the first connection position a, and the third hinge shaft 43 is engaged with the sixth guide segment K6. At this time, the guide portion 50 and the guide portion 60 are rotated by an angle G3 relative to the corresponding guide portion 50 and guide portion 60 in Embodiment 1.

[0349] In this sixth embodiment, the first connecting position a is located on the side of the fifth guide position I5 closest to the door side wall 32. As an alternative configuration, the straight line containing the first connecting position a and the fifth guide position I5 is parallel to the front wall 31 of the door. The second connecting position b is located on the side of the first connecting position closest to both the door side wall 32 and the front wall 31. The second connecting position b is the point where the guide trajectory line K has the smallest distance from the door side wall 32.

[0350] The third connecting position c is located on the side of the second connecting position b that is close to the front wall 31 of the door and away from the side wall 32 of the door;

[0351] The fourth connection position d is located on the side of the third connection position c away from the front wall 31 and the side wall 32 of the door, and the fourth connection position d is located on the side of the second connection position b close to the front wall 31 of the door.

[0352] The fifth connection position e is located on the side of the fourth connection position d that is close to the front wall 31 and far away from the side wall 32 of the door; in this embodiment, the fifth connection position e is the point where the guide trajectory line K is the closest to the front wall 31 of the door.

[0353] The sixth connection position f is located on the side of the fifth connection position e away from the front wall 31 and the side wall 32 of the door. Alternatively, the sixth connection position f can be located on the side of the first connection position a closer to the rear wall 33 of the door.

[0354] The seventh connection position g is located on the side of the sixth connection position f closest to the door side wall 32 and furthest from the door front wall 31. Alternatively, the seventh connection position g can be located on the side of the third connection position c furthest from the door side wall 32, and on the side of the fourth connection position d closest to the door side wall 32. The seventh connection position g is the point where the guide trajectory line K is closest to the door front wall 31.

[0355] The eighth connection position h is located on the side of the seventh connection position g that is close to the door side wall 32 and the front wall 31. Alternatively, the eighth connection position h is located on the side of the first connection position a that is close to the door side wall 32 and away from the front wall 31; and on the side of the second connection position b that is away from the door side wall 32 and the front wall 31.

[0356] In the projection of the plane containing the front wall 31, the second connecting position b, the eighth connecting position h, the first connecting position a, the third connecting position c, the seventh connecting position g, the fourth connecting position d, the fifth connecting position e, and the sixth connecting position f are sequentially moved away from the side wall 32. In this embodiment, in the projection of the plane containing the front wall 31, the second connecting position b, the eighth connecting position h, and the first connecting position a are adjacent to each other. The third connecting position c, the seventh connecting position g, and the fourth connecting position d are adjacent to each other.

[0357] As an optional configuration, in the projection of the plane containing the front wall 31, the distance between the second connecting position b and the first connecting position a is less than 2mm; the distance between the second connecting position b and the eighth connecting position h is less than 1mm; the distance between the third connecting position c and the fourth connecting position d is less than 6mm; and the distance between the third connecting position c and the seventh connecting position g is less than 1mm.

[0358] In the projection of the plane containing the door side wall 32, the fifth connecting position e, the third connecting position c, the fourth connecting position d, the second connecting position b, the first connecting position a, the sixth connecting position f, the eighth connecting position h, and the seventh connecting position g are sequentially moved away from the front wall 31. Among them, the first connecting position a and the sixth connecting position f are adjacent to each other; as an alternative configuration, in the projection of the plane containing the door side wall 32, the distance between the first connecting position a and the sixth connecting position f is less than 0.5 mm.

[0359] As an optional feature, the sixth guide segment K6 has a recessed point f1 near the sixth connecting position f. Specifically, the sixth guide segment K6 protrudes towards its guide centroid O at the recessed point f1. As an optional feature, during the opening of the door 30, when the second hinge shaft 42 engages with the second connecting position b, the third hinge shaft 43 engages with the recessed point f1.

[0360] During the opening of the door 30, the first hinge shaft 41 moves relative to the guide groove, and the second hinge shaft 42 and the third hinge shaft 43 move relative to the guide groove. Similar to the principle described in Embodiment 1, in this Embodiment 6, when the door 30 is in the closed state, the first central shaft I is located at the fifth guide position I5, the second central shaft E is located at E5 relative to the door 30, and the second central shaft F is located at F5 relative to the door 30.

[0361] like Figures 67-77 As shown, in this sixth embodiment, the opening angles of the door 30 are denoted as Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, and Q8. Considering the correlation between this sixth embodiment and the first embodiment, the opening motion of the door 30 is described using the following eight angles. Wherein, Q0 = 0° = G2 - G2, Q1 = G3 - G2, Q2 = G4 - G2, Q3 = G5 - G2, Q4 = G6 - G2, Q5 = G7 - G2, Q6 = G8 - G2, Q... 8`=90°, Q7=G9-G2, Q8=G 10 -G2. It should be noted that the angle relationship between the angles in this embodiment six and the angles in embodiment one is only for illustrating the motion in this embodiment six. The angles in this embodiment six are not limited by the angle relationships in the above two embodiments.

[0362] When the door 30 is closed, Q0=0°. When the first central axis I moves to the second guide position I2 of the guide trajectory line S, the second central axis E is located at E2 relative to the door 30, and the third central axis F is located at F2 relative to the door 30; that is, the axis triangle IEF is located at the second triangle position I2E2F2 relative to the door 30.

[0363] When the door 30 is opened to Q1=G3-G2, when the first central axis I moves to the third guide position I3 of the guide trajectory line S, the second central axis E is located at E3 relative to the door 30, and the third central axis F is located at F3 relative to the door 30; that is, the axis triangle IEF is located at the third triangle position I3E3F3 relative to the door 30.

[0364] When the door 30 is opened to Q2=G4-G2, when the first central axis I moves to the fourth guide position I4 of the guide trajectory line S, the second central axis E is located at E4 relative to the door 30, and the third central axis F is located at F4 relative to the door 30; that is, the axis triangle IEF is located at the fourth triangle position I4E4F4 relative to the door 30.

[0365] When the door 30 is opened to Q3=G5-G2, when the first central axis I moves to the fifth guide position I5 of the guide trajectory line S, the second central axis E is located at E5 relative to the door 30, and the third central axis F is located at F5 relative to the door 30; that is, the axis triangle IEF is located at the fifth triangle position I5E5F5 relative to the door 30.

[0366] When the door 30 is opened to Q4=G6-G2, the first central axis I moves to the sixth guide position I6 of the guide trajectory line S, the second central axis E is located at E6 relative to the door 30, and the third central axis F is located at F6 relative to the door 30; that is, the axis triangle IEF is located at the sixth triangle position I6E6F6 relative to the door 30.

[0367] When the door 30 is opened to Q5=G7-G2, the first central axis I moves to the seventh guide position I7 of the guide trajectory line S, the second central axis E is located at E7 relative to the door 30, and the third central axis F is located at F7 relative to the door 30; that is, the axis triangle IEF is located at the seventh triangle position I7E7F7 relative to the door 30.

[0368] When the door 30 is opened to Q6=G8-G2, the first central axis I moves to the eighth guide position I8 of the guide trajectory line S, the second central axis E is located at E8 relative to the door 30, and the third central axis F is located at F8 relative to the door 30; that is, the axis triangle IEF is located at the eighth triangle position I8E8F8 relative to the door 30.

[0369] Door 30 opens to Q 8` When the angle is 90°, the first central axis I moves to the guide trajectory line S. 8` The guide position, the second central axis E is located relative to the door body 30 at E 8` The third central axis F is located relative to the door body 30 at F 8` That is, the axis triangle IEF is located relative to the door body 30 at I. 8` E 8` F 8` The defined triangle position.

[0370] When the door 30 is opened to Q7=G9-G2, the first central axis I moves to the ninth guide position I9 of the guide trajectory line S, the second central axis E is located at E9 relative to the door 30, and the third central axis F is located at F9 relative to the door 30; that is, the axis triangle IEF is located at the ninth triangle position I9E9F9 relative to the door 30.

[0371] Door 30 opens to Q8=G 10 At point -G2, the first central axis I moves to the tenth guide position I of the guide trajectory line S. 10 The second central axis E is located relative to the door body 30 at E 10 The third central axis F is located relative to the door body 30 at F 10 That is, the axis triangle IEF is located in the tenth triangle position relative to the gate body 30. 10 E 10 F 10 .

[0372] The principle is the same as in Embodiment 1, and will not be repeated here. It can be concluded that in this Embodiment 6, based on the relativity of motion, with the box 10 as the reference frame, the door 30 has a displacement component parallel to the rear wall 33 and a displacement component parallel to the side wall 32 relative to the box 10. The displacement component parallel to the rear wall 33 is denoted as the first direction displacement. The displacement component parallel to the door sidewall 32 in the second direction. During different opening stages of the door 30, the displacement in the first direction... Second direction displacement The meanings can differ.

[0373] The following describes the movement trend of the door 30 in the displacement coordinate system AOB set in the same embodiment 1.

[0374] (1) Combination Figure 34 , Figures 36-39 During the process of opening the door 30 from the closed state to 90°, as the door 30 rotates counterclockwise relative to the housing 10, the door side wall 32, the door rear wall 33, and the door front wall 31 also rotate counterclockwise during this opening phase. In the plane containing the top wall of the housing 10, the door side wall 32 extends outward and forward 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 rear wall 33 extends inward and forward along the direction from the door side wall 32 to the end of the door 30 opposite to the door side wall 32.

[0375] (1.1) As Figure 36 During the process of opening the door 30 from the closed state to Q3, with the housing 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing away from the side wall 32. The second direction displacement is parallel to the side wall 32 of the door and points away from the front wall 31 of the door. That is, displacement in the first direction. The second direction displacement points to the inner front side (inward and forward side) of the housing 10. Pointing to the inner rear side (inward and rearward side) of housing 10.

[0376] like Figure 36 As shown, in the displacement coordinate system AOB, during the process of the door 30 opening from the closed state to Q3, the first direction displacement of the door 30 is... Located in the second quadrant (A < 0, B > 0), displacement in the second direction Located in the third quadrant (A < 0, B < 0). Displacement in the first direction. Second direction displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the first direction The displacement component on axis A is <0, the component displacement on the B-axis is >0; displacement in the second direction The displacement component on axis A is <0, the component displacement on the B-axis is <0. Wherein, the trajectory feature settings of this invention include: Then there is, = + <0, = + >0. That is, during the process of the door 30 opening from the closed state to Q3, in the displacement coordinate system AOB, the door 30 has a first component displacement. <0 and second displacement >0. Therefore, it can be concluded that: relative to the box 10, the door 30 has a tendency to move in the negative direction of the A axis and in the positive direction of the B axis; that is, during the process of opening the door 30 from the closed state to Q3, the door 30 has a tendency to move inward and forward relative to the box 10.

[0377] (1.2) As Figure 37 Combined with the aforementioned door 30 opening from Q3 (Q3 < 90°) to Q 8` As can be seen from the displacement direction of the door 30 relative to the box 10 during the process of opening from Q3 to 90°, with the box 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. The second direction displacement is parallel to the side wall 32 of the door and points towards the front wall 31 of the door. That is, displacement in the first direction. The second direction displacement points to the outer rear side (outward and rearward side) of the housing 10. Pointing to the outer front side (outward and forward side) of the housing 10.

[0378] like Figure 37 In the displacement coordinate system AOB, during the process of the door 30 opening from Q3 to 90°, the first direction displacement of the door 30 is... Located in the fourth quadrant (A>0, B<0), displacement in the second direction Located in the first quadrant (A>0, B>0). Displacement in the first direction. Second direction displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the first direction The displacement component on axis A is >0, the displacement component on the B-axis is <0; displacement in the second direction The displacement component on axis A is >0, the displacement component on the B-axis is >0. Among them, the trajectory feature settings of this invention include: Then there is, = + >0, = + <0. That is, during the process of the door 30 opening from Q3 to 90°, in the displacement coordinate system AOB, the door 30 has a first component displacement. >0 and second displacement <0. Therefore, it can be concluded that: relative to the box 10, the door 30 has a tendency to move in the positive direction of the A axis and in the negative direction of the B axis; that is, during the process of the door 30 opening from Q3 to 90°, the door 30 has a tendency to move outward and backward relative to the box 10.

[0379] like Figure 38 As shown, when the door 30 is opened to 90°, the door side wall 32 is parallel to the plane where the retrieval 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 retrieval 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.

[0380] When the door 30 is opened to 90°, with the box 10 as a reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. The second direction displacement is parallel to the side wall 32 of the door and points towards the front wall 31 of the door. That is, displacement in the first direction. The displacement is directed towards the rear side of housing 10 in the second direction. Pointing to the outside of housing 10.

[0381] like Figure 38 As shown, when the door 30 is opened to 90°, in the displacement coordinate system AOB, the displacement of the door 30 in the first direction is... Displacement along the B-axis and pointing in the negative direction of the B-axis, in the second direction. Displacement along axis A and pointing in the positive direction of axis A. Displacement in the first direction. Second direction displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the first direction The displacement component on axis A is =0, the displacement component on the B-axis is = <0; displacement in the second direction The displacement component on axis A is = >0, the displacement component on the B-axis is =0. Where, = + = >0, = + = <0. That is, when the door 30 is opened to 90°, in the displacement coordinate system AOB, the door 30 has a first component displacement. >0 and second displacement <0; From this, we can conclude that: relative to the box 10, the door 30 has a tendency to move in the positive direction along the A axis and in the negative direction along the B axis; that is, when the door 30 is opened at 90°, the door 30 has a tendency to move outward and backward relative to the box 10.

[0382] (2) For example Figure 39 As shown, during the process of the door 30 rotating open from 90° to Q8 (Q8 > 90°), while the door 30 rotates counterclockwise relative to the housing 10, the door sidewall 32 also rotates counterclockwise during this opening process. In the plane containing the top wall of the housing 10, the door sidewall 32 extends outward and backward along the direction from the second side edge N to the first side edge W; the door rear wall 33 extends outward and forward along the direction from the door sidewall 32 to the opposite end of the door 30.

[0383] During the process of the door 30 rotating open from 90° to Q8, with the box 10 as the reference, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. The second direction displacement is parallel to the side wall 32 of the door and points towards the front wall 31 of the door. That is, displacement in the first direction. The second direction displacement points to the inner rear side (inward and rearward side) of the housing 10. Pointing to the outer rear side of housing 10 (outward and rearward side).

[0384] like Figure 39 As shown, in the displacement coordinate system AOB, during the process of the door 30 opening from 90° to Q8, the first direction displacement of the door 30 is... Located in the third quadrant (A<0, B<0), displacement in the second direction Located in the fourth quadrant (A > 0, B < 0). Displacement in the first direction. Second direction displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the first direction The displacement component on axis A is <0, the component displacement on the B-axis is <0; displacement in the second direction The displacement component on axis A is >0, the displacement component on the B-axis is <0. Wherein, the trajectory feature settings of this invention include: Then there is, = + >0, = + <0. That is, during the process of the door body 30 moving from 90° to Q8, in the displacement coordinate system AOB, the door body 30 has a first component displacement. >0 and second displacement <0. Therefore, it can be concluded that: relative to the box 10, the door 30 has a tendency to move in the positive direction along the A axis and in the negative direction along the B axis; that is, during the process of the door 30 opening from 90° to Q8, the door 30 has a tendency to move outward and backward relative to the box 10.

[0385] In summary, during the entire process of the door 30 opening from the closed state to Q8, the movement of the door 30 relative to the housing 10 is divided into two stages: the door 30 tends to move inward first and then outward.

[0386] Similar to Embodiment 1, it should be noted that in this embodiment, only some angles within the range of 0~90°, 90°, and 90°~G are used. max =Q8 range of some angles are used as representatives to illustrate the overall movement trend, but they can represent the movement trend within the corresponding range, and can illustrate that the hinge assembly with the above trajectory features of the present invention can make the door 30 have a movement trend of first inward and then outward (inward → outward) during the opening process.

[0387] In this sixth embodiment, the door 30 tends to move inward during the first stage of opening. Specifically, as an configurable method, during the process of rotating the door 30 from the closed state to Q3, while the first hinge shaft 41 moves relative to the guide 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 guide groove towards the door front wall 31, and the third hinge shaft 43 moves relative to the guide groove away from the door front wall 31. The above-mentioned inward movement of the door 30 during opening is suitable for the scenario of the refrigerator being installed in a cabinet. On the one hand, it can be set in the early stage of opening the door 30 so that the inward movement of the door 30 can effectively compensate for the outward displacement of the first side edge W caused by the simple rotation of the door 30, limiting the distance of the first side edge W beyond the reference plane M0 to not exceed the distance between the cabinet and the refrigerator side wall, effectively avoiding interference between the door 30 and the cabinet 100 when the door is open, 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 this embodiment, the sixth door 30 moves inward during the process of opening to the maximum angle, which can reduce the limitation of the cabinet on the maximum opening angle of the door 30, so that the maximum opening angle of the refrigerator door 30 installed in the cabinet is greater.

[0388] In one possible configuration, during the process of the door 30 rotating from the closed state to Q3, the third hinge shaft 43 moves relative to the guide groove in a direction away from the front wall 31 and closer to the side wall 32. In another possible configuration, the third hinge shaft 43 moves relative to the guide groove away from the front wall 31 while first moving away from the side wall 32, and then moving closer to the side wall 32.

[0389] As an optional configuration, during the process of the door 30 rotating from the closed state to Q3, the second hinge shaft 42 engages with the first guide section K1; when the door 30 is opened to Q3, the second hinge shaft 42 engages with the second connecting position b. In this configuration, the second hinge shaft 42 moves relative to the guide groove towards the front wall 31 and the side wall 32 of the door.

[0390] In this sixth embodiment, the door 30 has an outward tendency during the second stage of opening; that is, the door 30 has an inward tendency during the continued opening process at Q3. Specifically, as an optional configuration, during the opening process from Q3 to Q8, while the first hinge axis 41 moves relative to the guide groove away from the door side wall 32 and closer to the door front wall 31, the second hinge axis 42 moves relative to the guide groove away from the door side wall 32 and closer to the door front wall 31, and the third hinge axis 43 moves relative to the guide groove closer to the door side wall 32. As an optional configuration, during the second stage of opening, the third hinge axis 43 moves relative to the guide groove first away from the door front wall 31, and then closer to the door front wall 31. In the above configuration, Q3 < 90°. That is, as the door 30 opens to 90°, it tends to move outward. This reduces the obstruction of the access opening by the door 30, making it easier to retrieve and place items. It also increases the lateral width of the drawers while ensuring that the drawers placed in the storage compartment can be pulled out, thus increasing the space utilization of the drawers. In addition, when used in conjunction with the first stage in this embodiment, in the scenario where the refrigerator is installed in a built-in cabinet, the later outward movement of the door 30 can compensate for the earlier inward movement of the door 30 to avoid the cabinet, so as to make full use of the lateral space of the cabinet and reduce the obstruction of the access opening caused by the earlier inward movement of the door 30.

[0391] It should be noted that the first and second stages in this embodiment six can be set independently and are not limited by the movement of the other stage; or the first stage can be experienced first and then the second stage can be experienced.

[0392] Combination Figures 78-86As shown, assuming the door 30 rotates around the first central axis I of the previous state to the position of the adjacent subsequent state (the door 30 is represented by a dashed line), during this movement, the rotation axis of the door 30 is fixed relative to the door 30. Then, under this movement trend, when the door 30 is open, the first side edge W is located at W' relative to the box 10; the second side edge N is located at N' relative to the box 10; and the side sealing edge H is located at H' relative to the box 10. Correspondingly, when the door 30 is opened to the subsequent state according to the trajectory in this embodiment (the door 30 is represented by a solid line), compared to its previous state, the rotation axis of the door 30 has changed relative to the door 30. At this time, the first side edge W is located at W relative to the box 10; the second side edge N is located at N relative to the box 10; and the side sealing edge H is located at H relative to the box 10. Figure 78 In the diagram, the position of the door 30 indicated by the dashed line is the position reached when the door 30 is simply rotated to G1 relative to the first central axis I (I2) of the door 30 when it is closed; the position of the door 30 indicated by the solid line is the position reached when it is rotated open to Q1 according to the configuration of this invention. Figure 79 In the diagram, the dashed line indicates the position of door 30, which is the position reached when door 30 is opened to Q1 using the rotation method of this invention, and then rotated simply to Q2 with the first central axis I (the first central axis I (I3) of the previous state) of door 30 as the central axis when it is opened to Q1; the solid line indicates the position of door 30, which is the position reached when it is rotated to Q2 using the rotation method of this invention; similarly... Figures 80-86 This is a diagram comparing the positions of the two different opening methods described above at different opening angles.

[0393] By comparing the arrangement of the present invention with the simple rotation of the door body 30 around its first central axis I in its previous state, it can be seen that:

[0394] During the process of opening the door 30 from the closed state to Q3, in this application, the positions W of the first side edges are all located on the side of W' closer to the side wall of the second body and away from the retrieval opening; the positions N of the second side edges are all located on the side of N' closer to the side wall of the second body and away from the retrieval opening; and the positions H of the side sealing edges are all located on the side of H' closer to the side wall of the second body and away from the retrieval opening. That is, during the process of opening the door 30 from the closed state to Q3, the door 30 has a tendency to move inward and forward.

[0395] During the opening of the door 30 from Q3 to Q8, in this application, the positions W of the first side edges are all located on the side away from the second body sidewall and close to the retrieval opening; the positions N of the second side edges are all located on the side away from the second body sidewall and close to the retrieval opening; and the positions H of the side sealing edges are all located on the side away from the second body sidewall and close to the retrieval opening. That is, during the opening of the door 30 from Q3 to Q8, the door 30 has a tendency to move outward and backward.

[0396] The movement trends in each of the above stages are consistent with the aforementioned description.

[0397] It should be noted that the comparison between the current position of the door 30 in this invention and the assumed position of the door 30 when it is simply rotated around the first central axis I from the previous state in this invention to the opening angle of the door 30 in this invention is representative. It can represent the movement trend of the door 30 relative to the previous state during the opening process of the door 30 in this invention. Here, only some selected angles are used for comparison and explanation to illustrate the movement trend of the door 30 when it is opened.

[0398] It should be noted that the movement of the first hinge axis 41 relative to the guide part 50, and the movement of the second hinge axis 42 and the third hinge axis 43 relative to the guide part 60, can cause the door body 30 to move inward or outward in different stages; the length of the guide trajectory line K is not limited to having all stages; it can be provided with at least one stage of movement characteristics.

[0399] In summary, embodiments one through six of this invention have described the solution of this invention from multiple perspectives. It should be noted that the main focus of each embodiment is on its differences from the previously mentioned embodiments, without extensive description of their similarities. Furthermore, to precisely control the rotation and opening of the door 30 and its movement in a specific direction, the first and second hinge components require meticulous design to achieve coordinated operation and ultimately precise control of the door 30's complex movements.

[0400] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0401] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that, It includes: The container defines a storage compartment with an access opening and has a first body sidewall and a second body sidewall disposed opposite to each other. A door body, which is connected to the housing via a hinge assembly, to open or close the loading / unloading port; the door body has a front wall away from the housing when the door body is closed, and a side wall connected to the front wall and close to the hinge assembly; The hinge assembly includes: The first hinge shaft, the second hinge shaft, and the third hinge shaft are fixed to the housing and close to the side wall of the first body; the second hinge shaft, the first hinge shaft, and the third hinge shaft are sequentially moved away from the side wall of the first body. A guide portion and a guide portion are located at the end of the door body and close to the side wall of the door; the guide portion defines a straight guide trajectory line, the guide trajectory line extending from one end close to the side wall and front wall of the door in a direction away from the side wall and front wall of the door; the guide portion defines a closed loop guide trajectory line, the guide trajectory line surrounding the guide trajectory line; The guide trajectory line includes a first guide segment K1, a second guide segment K2, a third guide segment K3, a fourth guide segment K4, a fifth guide segment K5, a sixth guide segment K6, and a seventh guide segment K7 connected end to end in sequence; Wherein, the connection point between the seventh guide segment K7 and the first guide segment K1 is denoted as the first connection position a; the connection points where the first guide segment K1, the second guide segment K2, the third guide segment K3, the fourth guide segment K4, the fifth guide segment K5, the sixth guide segment K6, and the seventh guide segment K7 are connected in sequence are denoted as the second connection position b, the third connection position c, the fourth connection position d, the fifth connection position e, the sixth connection position f, and the seventh connection position g, respectively. In the projection of the plane where the front wall of the door is located, the seventh connection position g, the first connection position a, the second connection position b, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are sequentially moved away from the side wall of the door; In the projection of the plane containing the side wall of the door, the second connection position b, the third connection position c, the fourth connection position d, the first connection position a, the fifth connection position e, the seventh connection position g, and the sixth connection position f are sequentially moved away from the front wall of the door; The arrangement direction of the first body sidewall and the second body sidewall is defined as transverse; During the opening process of the door from the closed state, the first hinge axis moves in a straight line with the guide trajectory line inclined to the side wall of the door relative to the guide part, and the second hinge axis and the third hinge axis both move relative to the guide part. The door opens the pick-up and put-out port and moves a certain distance laterally.

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

3. The refrigerator according to claim 2, characterized in that: in, ∠FIE belongs to any value between 172° and 178°.

4. The refrigerator according to claim 2, characterized in that: In the projection of the plane containing the top wall of the box, the longest side EF of the axial triangle IEF is located on the side of the vertex I of the axial triangle IEF that is away from the pick-up and drop-off port.

5. The refrigerator according to any one of claims 2-4, characterized in that: In the projection of the plane containing the top wall of the box, the straight line IE containing the first central axis I and the second central axis E is parallel to the pick-up and put-out port, and the third central axis F is located on the side of the straight line IE containing the first central axis I and the second central axis E away from the pick-up and put-out port.

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

7. The refrigerator according to claim 1, 2, 3, or 4, characterized in that: The door has a rear wall opposite to the front wall; the rear wall intersects with the side wall to form a second side edge N; The plane where the retrieval and placement opening is located is denoted as the second reference plane M2; the plane where the second body sidewall is located is denoted as the first reference plane M1, and the first reference plane M1 is perpendicular to the second reference plane M2; the first reference plane M1 and the second reference plane M2 remain stationary relative to the box body during the opening process of the door body relative to the box body. In the projection of the plane where the top wall of the box is located, during the process of the door opening from the closed state, the second side edge N first moves towards the first reference plane M1 and the second reference plane M2, and then moves towards the first reference plane M1 and away from the second reference plane M2. The door is opened to its maximum angle G. max During the process, the trajectory of the second side edge is an arc.

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

9. The refrigerator according to claim 8, characterized in that: The center of the circle containing the motion trajectory of the arc-shaped second side edge within the plane of the top wall of the box is denoted as the center O of the second side edge. N The center of the circle containing the trajectory of the arc-shaped side sealing edge is denoted as the center O of the side sealing edge. H ; Wherein, the radius of the circle containing the motion trajectory of the second side edge is smaller than the radius of the circle containing the motion trajectory of the side sealing edge; The central axis of the first hinge shaft, the center O of the second side edge N Side sealing edge center O H Sequentially moving away from the sidewall of the first body; and the center O of the side sealing edge H The central axis of the first hinge axis, and the center O of the second side edge. N Move away from the plane where the pick-up and drop-off port is located in sequence.

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