Refrigerator

Abstract

The application provides a refrigerator, which comprises a cabinet, a hinge assembly, a door body with a door front wall and a door side wall; the hinge assembly comprises a guide part and a guide part located at the end of the door body, a first hinge shaft fixed on the cabinet, a second hinge shaft and a third hinge shaft; the guide part defines a linear guide track; the guide part defines a closed loop guide track, which surrounds the guide track; the second hinge shaft, the first hinge shaft and the third hinge shaft are sequentially away from the first body side wall; during the process that the door body is opened from G2 to G4, the first hinge shaft moves linearly along the guide track in the direction of approaching the door side wall relative to the guide part, the second hinge shaft and the third hinge shaft move relative to the guide part, the door body opens the taking and placing opening and moves a certain distance inward; when the door body is opened to the fourth angle G4, the first hinge shaft moves to the end of the guide part close to the door side wall; the refrigerator makes the door body not exceed or excessively exceed the side of the cabinet when being opened.

Description

Technical Field

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

[0002] Nowadays, refrigerators are mostly placed inside cabinets for built-in installation. Built-in refrigerators are typically integrated entirely into a custom-made cabinet. To ensure a snug fit, the gap between the refrigerator's outer wall and the cabinet's inner wall is usually very small. However, when the refrigerator door is opened, the vertical edge of the hinged door can easily hit the inner wall of the cabinet. Therefore, for built-in refrigerators, due to cabinet space limitations, to ensure the door opens effectively, the corners of the door must not extend excessively beyond the cabinet's dimensions during opening. 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 ensures that the door does not extend beyond or excessively extend beyond the side of the refrigerator body 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 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, and the guide portion defines a closed loop guide trajectory line; wherein the guide trajectory line surrounds the guide trajectory line;

[0011] During the process of the door opening from the second angle G2 to the fourth angle G4, the first hinge axis moves in a straight line relative to the guide part along the guide trajectory line towards the side wall of the door, the second hinge axis moves relative to the guide part away from the side wall of the door and towards the front wall of the door, the third hinge axis moves relative to the guide part, and the door opens the retrieval port and moves inward a certain distance.

[0012] When the door is opened to the fourth angle G4, the first hinge shaft moves to the end of the guide near the side wall of the door.

[0013] In some embodiments of the refrigerator of this application, a displacement coordinate system AOB is established on the side of the cabinet near the door, within the projection of the plane containing the top wall of the cabinet body; wherein, in the displacement coordinate system AOB, OB is perpendicular to the plane containing the retrieval port, and the direction from the retrieval port to the front wall of the door when it is closed is positive; OA is parallel to the plane containing the retrieval port, and the direction from the second side wall to the first side wall is positive; the displacement coordinate system AOB is a coordinate system that is stationary relative to the cabinet body;

[0014] The door has a rear wall disposed opposite to the front wall of the door;

[0015] During the process of the door opening from the second angle G2 to the fourth angle G4, the door has a first directional displacement parallel to the rear wall of the door and pointing away from the side wall of the door. ;

[0016] Among them, the displacement in the first direction The displacement component on axis A is The displacement component on the B-axis is ;in, <0, >0.

[0017] 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;

[0018] 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.

[0019] In some embodiments of the refrigerator in this application, ∠FIE belongs to any value between 172° and 178°.

[0020] 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.

[0021] 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.

[0022] In some embodiments of the refrigerator of this application, the guide trajectory line is parallel to the front wall of the door; during the opening of the door, the first hinge axis moves relative to the door in a direction parallel to the front wall of the door.

[0023] In some embodiments of the refrigerator of this application, the centroid of the guide trajectory line is denoted as guide centroid O, and the guide trajectory line surrounds its guide centroid O;

[0024] 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, and a sixth guide segment K6 connected end to end in sequence; the first guide segment K1, the second guide segment K2, the third guide segment K3, the fourth guide segment K4, and the fifth guide segment K5 all protrude in a direction away from the guide centroid O; the sixth guide segment K6 protrudes in a direction closer to the guide centroid O, so as to smoothly connect the fifth connecting position e and the first connecting position a;

[0025] Wherein, the connection point between the sixth guide segment K6 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, and the sixth guide segment K6 are connected in sequence are denoted as the second connection position b, the third connection position c, the fourth connection position d, the fifth connection position e, and the sixth connection position f, respectively.

[0026] In the projection of the plane where the front wall of the door is located, the second connection position b, the first connection position a, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are sequentially moved away from the side wall of the door;

[0027] In the projection of the plane containing the side wall of the door, the third connection position c, the second connection position b, the fourth connection position d, the first connection position a, the sixth connection position f, and the fifth connection position e are sequentially moved away from the front wall of the door.

[0028] In some embodiments of the refrigerator of this application, a plane passing through the center of mass of the door and parallel to the front wall of the door is denoted as the center of mass plane P; during the opening of the door, the center of mass plane P remains stationary relative to the door;

[0029] During the process of the door opening from the closed state to an angle G`1, the centroid plane P is located on the side of the first hinge axis, the second hinge axis, and the third hinge axis away from the front wall of the door;

[0030] The door is opened from angle G`1 to the maximum angle G that the door can reach. max During the process, the centroid plane P is located between the first hinge axis and the third hinge axis, and is located on the side of the first hinge axis away from the second hinge axis;

[0031] Wherein, G`1: G max It belongs to any value between 0.8 and 1.

[0032] 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;

[0033] 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;

[0034] 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.

[0035] 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 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.

[0036] 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.

[0037] During the process of the door opening from the closed state to angle G0, the second side edge N is located on the side of the side sealing edge H that is close to the side wall of the first body;

[0038] The door is opened from angle G0 to the maximum angle G that the door can reach. max During the process, the second side edge N is located on the side of the side sealing edge H that is away from the side wall of the first body.

[0039] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0040] This invention proposes a refrigerator comprising a cabinet, a hinge assembly, and a door having a front wall and side walls. 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; 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 side wall of the door. During the opening of the door from G2 to G4, the first hinge shaft moves linearly relative to the guide portion along the guide trajectory line towards the side wall of the door, while the second and third hinge shafts move relative to the guide portion, opening the access opening and moving inward a certain distance. When the door is opened to the fourth angle G4, the first hinge shaft moves to the end of the guide portion near the side wall of the door. This invention ensures that the door does not extend beyond or excessively extend beyond the side of the cabinet when opened. Attached Figure Description

[0041] Figure 1 This is a perspective view of the refrigerator according to Embodiment 1 of the present invention;

[0042] Figure 2 This is a top view of the refrigerator according to Embodiment 1 of the present invention;

[0043] Figure 3 yes Figure 2 A partial structural diagram showing the engagement of the first hinge component and the second hinge component when the door is closed;

[0044] Figure 4 This is a schematic diagram of the structure of the first hinge component in the refrigerator embodiment of the present invention;

[0045] Figure 5 This is a structural schematic diagram of the first hinge component in the refrigerator embodiment of the present invention from another perspective;

[0046] Figure 6 This is a schematic diagram showing the relative positions of the door and the cabinet connection area when the door is closed in Embodiment 1 of the refrigerator of the present invention;

[0047] Figure 7 This is a schematic diagram showing the relative position of the connection area between the door and the cabinet body when the door is opened to its maximum angle in Embodiment 1 of the refrigerator of the present invention;

[0048] 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=0°;

[0049] 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=G1;

[0050] 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=G2;

[0051] 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=G3;

[0052] 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=G4;

[0053] 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=G5;

[0054] 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=G6;

[0055] 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=G7;

[0056] 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=G8;

[0057] Figure 17 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;

[0058] Figure 18 In the refrigerator embodiment of the present invention, the door is opened to φ=G. 10 View of the hinge component;

[0059] Figure 19 In the refrigerator embodiment of the present invention, the door is opened to φ=G. 11 View of the hinge component;

[0060] Figure 20 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;

[0061] 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 of the refrigerator in Embodiment 1 of the present invention is opened from the closed state to the fourth angle G4.

[0062] Figure 22 In the first embodiment of the refrigerator of the present invention, the door body moves from the fourth angle G4 to the eleventh angle G 11A 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;

[0063] Figure 23 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.

[0064] 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=G2 in Embodiment 1 of the refrigerator of the present invention.

[0065] 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=G3 in Embodiment 1 of the refrigerator of the present invention.

[0066] 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=G4 in Embodiment 1 of the refrigerator of the present invention.

[0067] 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=G5 in Embodiment 1 of the refrigerator of the present invention.

[0068] 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=G6 in Embodiment 1 of the refrigerator of the present invention.

[0069] 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=G7 in Embodiment 1 of the refrigerator of the present invention.

[0070] 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=G8 in Embodiment 1 of the refrigerator of the present invention.

[0071] 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=G9 in Embodiment 1 of the refrigerator of the present invention.

[0072] Figure 32In 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;

[0073] Figure 33 In the refrigerator embodiment of the present invention, the door is opened to φ=G. 11 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;

[0074] 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.

[0075] 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 the fourth angle G4 in Embodiment 1 of the present invention;

[0076] Figure 36 This is a simplified schematic diagram of the relative position of the door and the refrigerator body when the door opening angle is greater than the fourth angle G4 and less than 90° in Embodiment 1 of the present invention.

[0077] Figure 37 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;

[0078] Figure 38 In Embodiment 1 of the refrigerator of the present invention, the door opening angle is greater than 90° and less than the eleventh angle G. 11 A simplified diagram illustrating the relative positions of the door and the housing.

[0079] Figure 39 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;

[0080] Figure 40 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.

[0081] Figure 41 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;

[0082] Figure 42 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;

[0083] Figure 43 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;

[0084] Figure 44 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;

[0085] Figure 45 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 of the refrigerator door when it is opened to G6 as the rotation axis;

[0086] Figure 46 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;

[0087] Figure 47 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;

[0088] Figure 48 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.

[0089] Figure 49 In the refrigerator embodiment of the present invention, the door is opened to G. 11 The position of the door when it opens to G 10 The state is opened to G 10 When the first central axis I is the rotation axis, rotate to G. max Position comparison chart at different times;

[0090] Figure 50 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.

[0091] Figure 51 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.

[0092] Figure 52 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.

[0093] Figure 53 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.

[0094] Figure 54 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.

[0095] Figure 55 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=Q5 in Embodiment 2 of the refrigerator of the present invention.

[0096] Figure 56 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.

[0097] Figure 57 In the second embodiment of the refrigerator of the present invention, the door is opened to φ=G. 6` 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;

[0098] Figure 58 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.

[0099] Figure 59 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 Q7 in the refrigerator embodiment 2 of the present invention.

[0100] Figure 60 This is a simplified schematic diagram of the relative position of the door and the cabinet when the door opening angle is less than Q2 in Embodiment 1 of the refrigerator of the present invention;

[0101] Figure 61 This is a simplified schematic diagram of the relative position of the door and the refrigerator body when the door opening angle is greater than Q2 and less than 90° in Embodiment 1 of the present invention.

[0102] Figure 62This 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;

[0103] Figure 63 This is a simplified schematic diagram of the relative position of the door and the refrigerator body when the door opening angle is greater than 90° and less than Q7 in Embodiment 1 of the present invention;

[0104] Figure 64 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 G1 with its first central axis I as the rotation axis when it is closed;

[0105] Figure 65 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 G2 with the first central axis I of the refrigerator door when it is opened to Q1 as the rotation axis;

[0106] Figure 66 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 G3 with the first central axis I when it is opened to Q2 as the rotation axis;

[0107] Figure 67 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 G4 with the first central axis I when it is opened to Q3 as the rotation axis;

[0108] Figure 68 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 and rotated to G5 with the first central axis I when it is opened to Q4 as the rotation axis;

[0109] Figure 69 This is a comparison diagram of the position of the refrigerator door when it is opened to Q6 and the position of the refrigerator door when it is opened to Q5 and rotated to G2 with the first central axis I when it is opened to Q5 as the rotation axis;

[0110] Figure 70 In the refrigerator embodiment of the present invention, the door is opened to Q. 6` A comparison diagram of the position when the door is open to state Q6 and the position when it is rotated to state G2 with the first central axis I as the rotation axis when it is open to state Q6;

[0111] Figure 71 This is a comparison diagram of the refrigerator of the present invention in embodiment 1 when the door is opened to Q7 and when the door is opened to Q6 and rotated to G2 with the first central axis I as the rotation axis when it is opened to Q6;

[0112] Figure 72 This is a perspective view of the refrigerator in Embodiment 3 of the present invention;

[0113] Figure 73 This is a top view of the refrigerator in Embodiment 3 of the present invention;

[0114] Figure 74 yes Figure 73 A partial structural diagram of the joint between the two doors when the door is closed;

[0115] Figure 75 This is a schematic diagram of the cooperation of the two side sealing strips when the door of the refrigerator in Embodiment 3 of the present invention is closed;

[0116] Figure 76 This is a schematic diagram showing the relative positions of the two side sealing strips when the refrigerator door of Embodiment 3 of the present invention is opened;

[0117] Figure 77 This is a top view of the refrigerator in Embodiment 4 of the present invention relative to the cabinet;

[0118] Figure 78 This is a perspective view of the refrigerator in Embodiment 5 of the present invention;

[0119] Figure 79 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 5 of the refrigerator of the present invention;

[0120] Figure 80 This is a top view of the refrigerator in Embodiment 5 of the present invention;

[0121] Figure 81 In the refrigerator embodiment five 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;

[0122] Figure 82 In the refrigerator embodiment five 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;

[0123] Figure 83 This is an exploded structural diagram of the mounting block and the end of the door in Embodiment 5 of the refrigerator of the present invention;

[0124] Figure 84 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 5 of the refrigerator of the present invention;

[0125] Figure 85 This is a schematic diagram of the structure of the refrigerator in Embodiment 5 of the present invention when the door is closed from an open state to the point where the first mating part and the second mating part come into contact;

[0126] Figure 86This is a schematic diagram of the structure of the refrigerator in Embodiment 5 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.

[0127] Figure 87 This is a top view of the refrigerator relative to the cabinet in Embodiment Six of the present invention.

[0128] 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

[0129] 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.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] Example 1

[0135] Reference Figures 1-5 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.

[0136] 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.

[0137] 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.

[0138] 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.

[0139] 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.

[0140] 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 enclosure surrounding the access opening to effectively seal the connection between the door 30 and the enclosure 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.

[0141] 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.

[0142] Reference Figures 3 to 5 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.

[0143] 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.

[0144] 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.

[0145] 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.

[0146] In this embodiment, as Figure 3 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 5 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.

[0147] 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. In some embodiments of this application, when the door 30 is closed, the guide trajectory line S is parallel to the plane where the retrieval and placement opening is located. As a configurable method, the guide trajectory line S is a straight line parallel to the front wall 31 of the door; during the opening process of the door 30, the first hinge axis 41 moves relative to the door 30 in a direction parallel to the front wall of the door; that is, the first hinge axis 41 moves relative to the door 30 in a direction perpendicular to the side wall 32 of the door, effectively controlling the displacement of the door 30 in the direction perpendicular to the side wall 32 of the door.

[0148] Among them, the guide trajectory line K surrounds the guide trajectory line S. In the projection of the plane where the top wall of the box 10 is located, the guide trajectory line K surrounds the first hinge axis 41, the second hinge axis 42 and the third hinge axis 43.

[0149] 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. The center trajectory line of the guide channel is denoted as the guide trajectory line S. The guide channel is a closed annular channel; the channel wall of the guide channel is annular to define the closed annular guide trajectory line K. That is, 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 shaft 41, the second hinge shaft 42, and the third hinge shaft 43. During the opening of the door 30, the first hinge shaft 41 moves linearly relative to the guide channel, and the second hinge shaft 42 and the third hinge shaft 43 both move relative to the guide channel, so that the door 30 has a certain amount of lateral displacement during the opening process.

[0150] 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.

[0151] In some embodiments of this application, the guide groove is a straight groove, and the extension direction of the guide groove is parallel to the door sidewall 32 to increase the detectability of the guide part 50, thereby ensuring processing accuracy. In this embodiment, the guide groove being a straight groove parallel to the door sidewall 32 is used as an example for explanation.

[0152] See Figures 6-7 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.

[0153] As one possible configuration, 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 between 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 greater angle.

[0154] 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.

[0155] 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.

[0156] 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.

[0157] 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.

[0158] In some embodiments of this application, such as Figure 3 As shown, 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, and a sixth guide segment K6 connected end to end. That is, the guide trajectory line K is a closed loop, and the guide groove is a closed annular groove, effectively limiting 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 sixth guide segment K6 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; and the connection point between the fifth guide segment K5 and the sixth guide segment K6 is denoted as the sixth connection position f.

[0159] As a possible configuration, when the door 30 is closed, the second hinge shaft 42 engages with the first connection position a of the guide groove. That is, when the door 30 is closed, the second hinge shaft 42 is located at the first connection position a.

[0160] 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;

[0161] The third connection position c is located on the side of the second connection position b that is close to the front wall 31 and away from 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 that is away from the side wall 32 of the door.

[0162] 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, and the fourth connection position d is located on the side of the second connection position b that is close to the rear wall 33 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.

[0163] 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 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 from the side wall 32 of the door.

[0164] The sixth connection position f is located on the side of the fifth connection position e closest to the front wall 31 and the side wall 32 of the door. In this embodiment, the sixth connection position f is located on the side of the first connection position a closest to the rear wall 33 of the door and 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.

[0165] That is, in the projection of the plane where the front wall 31 of the door is located, the second connecting position b, the first connecting position a, the sixth connecting position f, the third connecting position c, the fifth connecting position e, and the fourth connecting position d are successively moved away from the side wall 32 of the door.

[0166] In the projection of the plane containing the door side wall 32, the third connecting position c, the second connecting position b, the fourth connecting position d, the first connecting position a, the sixth connecting position f, and the fifth connecting position e are sequentially moved away from the front wall 31. In this embodiment, in the projection of the plane containing the door side wall 32, the fourth connecting position d is closer to the second connecting position b than the first connecting position a.

[0167] As an optional configuration, in the projection of the plane containing the door sidewall 32, the second connecting position b and the fourth connecting position d are adjacent to each other. Alternatively, in the projection of the plane containing the door sidewall 32, the distance between the second connecting position b and the fourth connecting position d is less than 3mm; and the distance between the first connecting position a and the fourth connecting position d is less than 10mm.

[0168] As a configurable method, in the projection of the plane containing the door sidewall 32, the projection points of the fifth connecting position e, the sixth connecting position f, the first connecting position a, and the third connecting position c are denoted as e`, f`, a`, and c`, respectively. The distance between the fifth connecting position e and the sixth connecting position f is denoted as e`f`, the distance between the fifth connecting position e and the first connecting position a is denoted as e`a`, and the distance between the first connecting position a and the third connecting position c is denoted as a`c`; where e`a` and a`c` are values ​​between 3 and 4; and e`f` and e`a` are values ​​between 0.5 and 0.6.

[0169] In this embodiment, the guide groove surrounds its guide centroid O, and the first guide segment K1, the second guide segment K2, the third guide segment K3, the fourth guide segment K4, and the fifth guide segment K5 all protrude in a direction away from the guide centroid O; the sixth guide segment K6 protrudes in a direction close to the guide centroid O, so that the guide trajectory line K smoothly transitions from the fifth connection position e to the first connection position a.

[0170] In this embodiment, along the direction from the first connecting position a to the second connecting position b, the first guide segment K1 extends towards the door side wall 32 and the front wall 31; along the direction from the second connecting position b to the third connecting position c, the second guide segment K2 extends away from the door side wall 32 and towards the front wall 31; along the direction from the third connecting position c to the fourth connecting position d, the third guide segment K3 extends away from the door side wall 32 and the front wall 31; along the direction from the fourth connecting position d to the fifth connecting position e, the fourth guide segment K4 extends towards the door side wall 32 and away from the front wall 31; along the direction from the fifth connecting position e to the sixth connecting position f, the fifth guide segment K5 extends towards the door side wall 32 and the front wall 31; along the direction from the sixth connecting position f to the first connecting position a, the sixth guide segment K6 extends towards the door side wall 32 and the front wall 31, and the sixth guide segment K6 protrudes towards the guide centroid O.

[0171] That is, in this embodiment, the second connection position b is the point of the guide trajectory line K closest to the door side wall 32, the fourth connection position d is the point of the guide trajectory line K furthest from the door side wall 32; the third connection position c is the point of the guide trajectory line K closest to the front wall 31, and the fifth connection position e is the point of the guide trajectory line K closest to the rear wall 33.

[0172] As an feasible approach, such as Figure 8 As shown, when the door 30 is closed, the second hinge shaft 42 is in contact with the first connection position a of the guide groove; the third hinge shaft 43 is in contact 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. As an alternative configuration, when the door 30 is closed, the second hinge shaft 42 is in interference fit with the end of the sixth guide segment K6 of the guide groove near the front wall 31; the third hinge shaft 43 is in interference fit with the end of the third guide segment K3 of the guide groove away from the side wall 32.

[0173] In this embodiment, along the direction from the first connecting position a towards the sixth connecting position f, the sixth guide segment K6 extends away from the door side wall 32 and the front wall 31, and protrudes towards the guide centroid O; while along the direction from the fourth connecting position d towards the third connecting position c, the third guide segment K3 extends towards the door side wall 32 and the front wall 31. That is, along the direction from the first connecting position a towards the sixth connecting position f, the distance between the sixth guide segment K6 and the door side wall 32 increases; along the direction from the fourth connecting position d towards the third connecting position c, the distance between the third guide segment K3 and the door side wall 32 decreases. This arrangement can prevent the third hinge shaft 43 from moving relative to the guide groove along the third guide segment K3 in the direction from the fourth connecting position d towards the third connecting position c. When the door 30 continues to move in the closing direction after closing to an opening angle of 0°, the above guide trajectory line K can apply resistance to the movement of the second hinge axis 42 and the third hinge axis 43 relative to the guide groove, so that the door 30 can stay stably in the closed state and avoid excessive force on the door 30, which would cause the door 30 to close excessively and then rebound open.

[0174] Assuming the door 30 continues to move from the closed state along the closing direction, the second hinge shaft 42 tends to move relative to the sixth guide segment K6 towards the sixth connecting position f, and the third hinge shaft 43 tends to move relative to the third guide segment K3 towards the third connecting position c. In this embodiment, the distance between the sixth guide segment K6 and the door sidewall 32 increases along the direction from the first connecting position a towards the sixth connecting position f. The extension tendency of the sixth guide segment K6 means that, while keeping the first hinge shaft 41 moving along the guide groove and the second hinge shaft 42 engaging with the sixth guide segment K6, the second hinge shaft 42 tends to move away from the door sidewall 32. Similarly, both the first hinge shaft 41 and the third hinge shaft 43 tend to move away from the door sidewall 32. However, since the distance between the third guide segment K3 and the door sidewall 32 decreases along the direction from the fourth connecting position d towards the third connecting position c, it exerts resistance on the movement of the third hinge shaft 43, thus preventing the third hinge shaft 43 from moving. Similarly, assuming the first hinge shaft 41 moves along the guide groove and the third hinge shaft 43 cooperates with the third guide section K3, it can be assumed that the sixth guide section K6 applies resistance to the movement of the second hinge shaft 42, thus preventing the second hinge shaft 42 from moving. In summary, the arrangement of the sixth guide section K6 and the third guide section K3 can limit the tendency of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 to continue moving relative to the guide portion 60 in the closing direction, thereby allowing the door 30 to remain stably in the closed state and preventing excessive force from causing the door 30 to close excessively and then rebound open.

[0175] As an optional configuration, when the door 30 is closed, the first connection position a is located on the side of the second hinge shaft 42 closest to the door side wall 32 and furthest from the door front wall 31. That is, when the door 30 is closed, the area on the second hinge shaft 42 closest to the door side wall 32 and furthest from the door front wall 31 engages with the first connection position a. Under the action of the sixth guide section K6, while keeping the first hinge shaft 41 moving along the guide groove and with the second hinge shaft 42 engaging with the sixth guide section K6, the second hinge shaft 42 tends to move away from the door side wall 32.

[0176] 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 Eleventh Leading Bit I 11 .

[0177] In some embodiments of this application, the fourth guide position I4 is the endpoint of the guide trajectory line S near the door sidewall 32, and the eleventh guide position I... 11 The guide trajectory line S is the endpoint away from the door sidewall 32; wherein, the initial guide position I0 is located at the fourth guide position I4 and the eleventh guide position I. 11 Between these points, the initial guide position I0, the first guide position I1, the second guide position I2, the third guide position I3, and the fourth guide position I4 are sequentially positioned close to the door side wall 32. The fourth guide position I4, 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 I... 10 Eleventh Leading Bit I 11 Move away from the side wall of the door by 32 in sequence.

[0178] As a configurable method, the sixth guide position I6, the starting guide position I0, the first guide position I1, the fifth guide position I5, the second guide position I2, the third guide position I3, and the fourth guide position I4 are sequentially positioned close to the door side wall 32.

[0179] 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.

[0180] 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; the first central shaft I moves relative to the guide groove along the guide trajectory line S, and the second central shaft E and the third central shaft F move relative to the guide groove.

[0181] 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.

[0182] As a configurable method, see Figure 3 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 distance between the first hinge axis 41 and the second hinge axis 42 is less than the distance between the first hinge axis 41 and the third hinge axis 43, and the distance between the second hinge axis 42 and the third hinge axis 43 is the largest. The obtuse-angled triangle arrangement of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 43 ensures that the second hinge shaft 42 and the third hinge shaft 43 engage with the guide groove, while the first hinge shaft 41 engages with the guide groove. This increases the assembly dimension of the first hinge shaft 41, the second hinge shaft 42, and the third hinge shaft 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 surface fit dimension between the first hinge component and the second hinge component effectively improves the fit stability of the first hinge component and the second hinge component, increasing the stability of the door body 30 when opened. 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 engage with the guide groove, further increasing stability.

[0183] As one possible 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 pick-up / placement opening; that is, the straight line containing the second hinge axis 42 and the third hinge axis 43 is located on the side of the first hinge axis 41 furthest from the pick-up / placement opening. This configuration allows the second hinge axis 42 and the third hinge axis 43, which are furthest apart, to cooperate with the guide groove on the side furthest from the pick-up / placement opening to support the door body 30, further increasing the support stability of the three hinge axes for the door body 30. At the same time, it reduces the size of the axis triangle IEF in the direction perpendicular to the pick-up / placement opening, which can satisfy the requirement of setting the first hinge axis 41, the second hinge axis 42, and the third hinge axis 43 on the second extension plate 4022, achieving avoidance between the door corner 7 and the hinge plate 40.

[0184] In some embodiments of this application, 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 pick-and-place port. Alternatively, the third central axis F may be located on the side of the straight line IE containing the first central axis I and the second central axis E that is furthest from the pick-and-place port.

[0185] 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.

[0186] 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.

[0187] like Figures 8-33 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.

[0188] 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.

[0189] 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 11 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 11 Restrictions.

[0190] Door 30 opens from the closed state to its maximum angle G max (=G) 11 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 421 and the third hinge shaft 43 relative to the guide groove are as follows:

[0191] Wherein, φ represents the opening angle of the door 30, and the opening angle φ = 0° when the door 30 is closed;

[0192] like Figure 8 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 first connection position a 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.

[0193] like Figure 9 As 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 towards the door side wall 32; 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 from the first connection position a towards the second connection position b; 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 from the fourth connection position d towards the fifth connection position e. 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 towards the door side wall 32, the second hinge axis 42 moves relative to the guide groove towards the door side wall 32 and the front wall 31, and the third hinge axis 43 moves relative to the guide groove towards the door side wall 32 and away from the front wall 31.

[0194] 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 first guide segment K1 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 9 and Figure 23As 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.

[0195] like Figure 9 and Figure 23 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. Specifically, the first guide position I1 is located on the side of the initial guide position I0 near the door sidewall 32; the first guide segment K1 of the guide trajectory line K engages with the second hinge axis 42, and the fourth guide segment K4 engages 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. From the process of door 30 opening from the closed state to G2, it can be seen that φ=G`1 exists. When φ=G1∈(0°, G`1], the centroid plane P is located on the side of the first triangular position I1E1F1 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 angle of door 30 is G1, the centroid plane P is not between the hinge axes. When φ=G1∈(G`1, G2), the centroid plane P passes through the first... The triangular position I1E1F1 indicates that 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. In other words, when the opening angle of the door 30 is no 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.

[0196] like Figure 10 and Figure 24As 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 closer to the door side wall 32. The second hinge axis 42 engages with the second connection position b of the guide trajectory line K; that is, the second hinge axis 42 moves to the position with the smallest distance from the door side wall 32. 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 passes through the second triangle position I2E2F2. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and 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 opening angle of the door 30 is G2, 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.

[0197] like Figure 11 As shown, when φ=G3∈(G2,G4), the door 30 rotates open from G2 to G4. During this opening process, the first central axis I moves along the guide trajectory line S towards the door side wall 32. The second hinge axis 42 engages with the second guide segment K2, and the second hinge axis 42 moves relative to the second guide segment K2 in a direction approaching the third connection position c from the second connection position b. 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 open from G2 to G4, while the first hinge axis 41 moves relative to the guide groove towards the door side wall 32, the second hinge axis 42 moves relative to the guide groove away from the door side wall 32 and towards the front wall 31, and the third hinge axis 43 continues to move relative to the guide groove towards the door side wall 32 and away from the front wall 31.

[0198] As described above, when the door 30 opens at an angle φ = G3 ∈ (G2, G4), 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 second guide segment K2 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 = G3 ∈ (G2, G4), 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 11 and Figure 25As shown, φ=G3∈(G2,G4) represents the position within this opening angle range, for comparison with the door 30 when it is opened to other states.

[0199] like Figure 11 and Figure 25 As shown, when the door 30 is opened 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; the second guide segment K2 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=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. During the process of the door 30 rotating from G2 to G4, the centroid plane P always passes through the third triangle position I3E3F3. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front wall 31 of the door. That is, during the process of the door 30 rotating from G2 to 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 opened.

[0200] like Figure 12 , Figure 26 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 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 second guide segment K2 of the guide trajectory line K, and the third hinge axis 43 engages with the fourth guide segment K4. 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 of the door. 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.

[0201] like Figure 13As shown, when φ=G5∈(G4,G6), the door 30 rotates open from G4 to G6. During this opening process, the first central axis I moves away from the door side wall 32 along the guide trajectory line S; the second hinge axis 42 engages with the second guide segment K2, and the second hinge axis 42 moves relative to the second guide segment K2 in a direction approaching the third connection position c from the second connection position b; 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 open from G4 to G6, 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 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.

[0202] As described above, when the door 30 opens at an angle φ = G5 ∈ (G4, G6), 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 second guide segment K2 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 = G5 ∈ (G4, G6), 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 27 As shown, φ=G5∈(G4,G6) represents the position within this opening angle range, for comparison with when the door 30 is opened to other states.

[0203] like Figure 13 and Figure 27As shown, when the door 30 is opened 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 away from the door side wall 32; the second guide segment K2 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=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. During the process of the door 30 rotating open from G4 to G6, the centroid plane P always passes through the fifth triangle position I5E5F5. Specifically, the centroid plane P is located between the first hinge axis 41 and the third hinge axis 43, and is located on the side of the first hinge axis 41 away from the second hinge axis 42 and away from the front wall 31 of the door. That is, during the process of the door 30 rotating from G4 to 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 opened.

[0204] like Figure 14 , Figure 28 As shown, when φ=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 and the door side wall 32. The second hinge axis 42 is engaged with the third connection position c of the guide trajectory line K, and the third hinge axis 43 is engaged with the fourth guide segment K4. As an alternative configuration, the third hinge axis 43 is engaged with the fifth connection position e at this time. 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 front wall 31 of the door. That is, when the door 30 opens at an angle of 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.

[0205] In some embodiments of this application, φ=G6=90°. That is, when the door 30 is opened to 90°, the second hinge shaft 42 contacts and engages with the third connection position c 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 I6E6 containing the first central axis I and the second central axis E is perpendicular to the front wall 31.

[0206] In this embodiment, along the direction from the second connecting position b to the third connecting position c, the second guide segment K2 extends away from the door side wall 32 and closer to the door front wall 31; while along the direction from the third connecting position c to the fourth connecting position d, the third guide segment K3 extends away from both the door side wall 32 and the door front wall 31. That is, along the direction from the second connecting position b to the fourth connecting position d, the distance between the guide trajectory line K and the door front wall 31 first decreases and then increases, and the distance between the guide trajectory line K and the door front wall 31 is the smallest at the third connecting position c. 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 door front wall, the pressure of the guide groove on the second hinge axis 42 is perpendicular to the door 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 door front wall 31, while the distance between the third guide segment K3 and the door front wall 31 gradually increases along the direction from the third connecting position c to the fourth connecting position d. When the door 30 continues to open from 90°, the extension of the third guide section K3 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 retrieve items from the storage room after opening the door 30 to 90°. 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.

[0207] 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.

[0208] In some embodiments of this application, when the door 30 is opened to 90°, the third hinge shaft 43 and the fourth guide section K4 are interference-fitted.

[0209] like Figure 15 As shown, when φ = G7 ∈ (G6, G8), the door 30 rotates open from G6 to G8. During this opening process, the first central axis I moves away from the door side wall 32 along the guide trajectory line S; the second hinge axis 42 engages with the third guide segment K3, and the second hinge axis 42 moves relative to the third guide segment K3 in a direction approaching the fourth connection position d from the third connection position c; 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 G6 to G8, while the first hinge axis 41 moves away from the door side wall 32 relative to the guide groove, the second hinge axis 42 moves away from the door side wall 32 and the front wall 31 relative to the guide groove, and the third hinge axis 43 moves towards the door side wall 32 and the front wall 31 relative to the guide groove.

[0210] As described above, when the door 30 opens at an angle φ = G7 ∈ (G6, G8), 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 second guide segment K2 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 = G7 ∈ (G6, G8), 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 15 and Figure 29 As shown, φ=G7∈(G6,G8) represents the position within this opening angle range, for comparison with when the door 30 is opened to other states.

[0211] like Figure 15 and Figure 29 As 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. Specifically, the seventh guide position I7 is located on the side of the sixth guide position I6 away from the door sidewall 32; the third guide segment K3 of the guide trajectory line K engages with the second hinge axis 42, and the fifth guide segment K5 engages with the third hinge axis 43. At this time (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 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, during the process of the door 30 rotating from G6 to G8, 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.

[0212] like Figure 16 , Figure 30As 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 away from the seventh guide position I7 away from the door side wall 32. The second hinge axis 42 cooperates with the third guide segment K3, 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 front wall 31 of the door. That is, when the opening angle of the door 30 is G8, 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.

[0213] 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 G8, the second hinge shaft 42 and the third hinge shaft 43 are always in contact with the inner wall of the guide groove. Furthermore, at specific opening angles (0°, 90°), the second hinge shaft 42 or the third hinge shaft 43 is interference-fitted with the guide track groove to ensure that the door 30 can be stably maintained in the corresponding state.

[0214] like Figures 17-18 As shown, φ∈(G8, G 11 When the door 30 is rotated open from G8 to G... 11 The process involves the following: During the opening process, the first central axis I moves along the guide trajectory line S in a direction away from the door sidewall 32; the second hinge axis 42 engages with the third guide segment K3, and the second hinge axis 42 moves relative to the third guide segment K3 in a direction approaching the fourth connection position d from the third connection position c; 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, when the door body 30 is rotated open from G8 to G... 11 During the process, while the first hinge shaft 41 moves away from the door side wall 32 relative to the guide groove, the second hinge shaft 42 moves away from the door side wall 32 and the front wall 31 relative to the guide groove, and the third hinge shaft 43 moves closer to the door side wall 32 and the front wall 31 relative to the guide groove.

[0215] The opening angle φ of the door is 30° ∈ (G8, G 11When the opening angle range is constant, the movement trend remains the same; the only difference is that 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 second guide segment K2 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, the opening angle φ∈(G8, G... 11 When the door 30 is opened to the corresponding section, selecting one of the opening angles represents the relative positions of the first hinge axis 41 relative to the guide groove, the second hinge axis 42, and the third hinge axis 43 relative to the guide groove. Specifically, for example... Figure 17 and Figure 31 As shown, with φ=G9∈(G8,G 11 ), φ=G 10 ∈(G8, G 11 ) represents the position within this opening angle range, for comparison with when the door 30 is opened to other states; where, G9 < G 10 Because the angle range is large, two angles will be selected for explanation to show the motion within that range.

[0216] like Figure 18 and Figure 32 As 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. Specifically, the ninth guide position I9 is ​​located on the side of the eighth guide position I8 away from the door sidewall 32; the third guide segment K3 of the guide trajectory line K engages with the second hinge axis 42, and the fifth guide segment K5 engages with the third hinge axis 43. At this time (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.

[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 of the ninth guide position I9 away from the door sidewall 32; the third guide segment K3 of the guide trajectory line K engages with the second hinge axis 42, and the fifth guide segment K5 engages with the third hinge axis 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 .

[0218] The above door 30 is rotated open by G8 to G.11 During the process, the centroid plane P always passes through the axial triangle IEF. 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 of the door. That is, the door 30 is rotated open from G8 to G... 11 During the process, 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 opening.

[0219] It should be noted that in some embodiments of this application, when the door 30 is rotated open from G8 to G... 11 During the process, the third guide segment K3 of the guide trajectory line K is engaged with the second hinge shaft 42 with a gap greater than 0 (that is, the third guide segment K3 is separated from the second hinge shaft 42), and the fifth guide segment K5 is engaged with the third hinge shaft 43.

[0220] like Figure 19 , Figure 33 As shown, φ=G 11 At that time, the door 30 rotates open to G. 11 The first central axis I is located at the eleventh guide position I of the guide trajectory line S. 11 Among them, the eleventh leading bit I 11 Located at the tenth leading bit I 10 On the side away from the door sidewall 32, and the eleventh guide position I 11 To guide the trajectory line S to the end point away from the door side wall 32. The second hinge axis 42 engages with the third guide segment K3, and the third hinge axis 43 engages with the fifth guide segment K5. At this time (φ=G) 11 (At that time), the second central axis E is located relative to the door body 30 at E 11 The third central axis F is located relative to the door body 30 at F 11 That is, the axis triangle IEF is located in the eleventh triangle position relative to the door body 30. 11 E 11 F 11 The centroid plane P passes through the eleventh triangle position I. 11 E 11 F 11 Specifically, the centroid plane P is located between the first hinge 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. 11 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.

[0221] In some embodiments of this application, the door 30 is opened to G. 11At this time, the second hinge shaft 42 and the third hinge shaft 43 are in contact with the inner wall of the guide groove.

[0222] In some embodiments of this application, the door 30 is opened to G. 11 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 third hinge shaft 43 is in contact with the sixth connection position f of the guide groove. In this embodiment, along the direction from the sixth connection position f towards the first connection position a, the sixth guide segment K6 extends towards the door side wall 32 and the front wall 31. That is, along the direction from the rear wall of the door to the front wall of the door, the distance between the sixth guide segment K6 and the door side wall 32 gradually decreases; the door 30 is opened to G 11 At this time, the third hinge shaft 43 is interference-fitted with the sixth guide section K6 of the guide groove at the end furthest from the front wall 31. This arrangement allows the door 30 to remain stably on G. 11 The status allows users to easily open door 30 to G. 11 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 sixth connection position f of the guide groove.

[0223] Assuming door body 30 is made of G 11 As the door continues to open, the third hinge shaft 43 tends to move towards the first connection position a relative to the sixth guide segment K6, and the second hinge shaft 42 tends to move towards the fourth connection position d relative to the third guide segment K3. In this embodiment, along the direction from the sixth connection position f towards the first connection position a, the sixth guide segment K6 extends towards the door side wall 32 and the door front wall 31, and the distance between the sixth guide segment K6 and the door side wall 32 decreases. The extension 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 end of the sixth guide segment K6 away from the door front wall 31 (the end of the fifth guide segment K5 near the door front wall 31). 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 body 30 to remain stably at G. 11 state.

[0224] As a configurable method, door 30 opens to G. 11 At this time, the third hinge shaft 43 is interference-fitted with the end of the sixth guide section K6 away from the front wall 31. 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.

[0225] In some embodiments of this application, the door 30 is opened to G. 11 At this time, the side of the third hinge shaft 43 closest to the door side wall 32 is interference-fitted with the end of the sixth guide segment K6 away from the 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.

[0226] As an optional configuration, along the direction from the rear wall of the door to the front wall of the door, the distance between the sixth guide segment K6 and the door side wall 32 gradually decreases, and the rate of decrease in distance between the sixth guide segment K6 and the door side wall 32 is denoted as λ6; the distance between the fifth guide segment K5 and the door side wall 32 gradually decreases, and the rate of decrease in distance between the fifth guide segment K5 and the door side wall is denoted as λ5; λ5 > λ6. Combining the fifth guide segment K5 protruding away from the guide centroid O, and the sixth guide segment K6 protruding towards the guide centroid O, a smooth transition from the sixth connecting position f to the first connecting position a is achieved through the sixth guide segment K6.

[0227] 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) 11 All contact fits are interference fits to ensure that the door 30 can stop in its current state.

[0228] Above 0°<G1<G`1<G2<G3<G4<G5<G6<G7<G8<G9<G 10 <G 11 ;G1, G2, G3, G4, G5, G6, G7, G8, G9, G 10 G 11 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 Eleventh Angle G 11 G max This is the maximum angle that the door 30 can open to. In this embodiment, G... max =G 11 It can be set, G6=90°.

[0229] The above door 30 is opened from G6 to G 11During the process, while the first hinge shaft 41 moves away from the door side wall 32 relative to the guide groove, the second hinge shaft 42 moves away from the door side wall 32 and the front wall 31 relative to the guide groove, and the third hinge shaft 43 moves closer to the door side wall 32 and the front wall 31 relative to the guide groove.

[0230] 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.

[0231] As a configurable method, G`1:G max It belongs to any value between 0.8 and 1. As a settable value, G`1 belongs to 20°~25°, G... max =G 11 =151°; it can be seen that during most of the opening stroke (83%~87% 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 track-changing motion of the door 30 when opening is smoother and more stable.

[0232] In summary, it can be concluded that door 30 opens from the closed state to G. max =G 11 During the process, the first hinge shaft 41 moves along a straight line relative to the guide groove first towards the door side wall 32, and then moves away from the door side wall; the second hinge shaft 42 and the third hinge shaft 43 move clockwise relative to the guide groove throughout the entire process.

[0233] During the process of opening the door 30 from the closed state to G4, the first hinge shaft 41 moves in a straight line towards the door side wall relative to the guide groove; the second hinge shaft 42 moves first relative to the first guide section K1, and then relative to the second guide section K2; the third hinge shaft 43 moves relative to the fourth guide section K4.

[0234] During the process of the door 30 opening from G4 to G6, the first hinge shaft 41 moves in a straight line away from the door sidewall relative to the guide groove, the second hinge shaft 42 moves relative to the second guide section K2, and the third hinge shaft 43 moves relative to the fourth guide section K4.

[0235] Door 30 is opened from G6 to G 11 During the process, the first hinge shaft 41 moves in a straight line away from the door sidewall relative to the guide groove, the second hinge shaft 42 moves relative to the third guide section K3, and the third hinge shaft 43 moves relative to the fifth guide section K5.

[0236] In summary, φ=G4 and φ=G6 will open door 30 from the closed state to G. max =G 11 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:

[0237] The first stage, combined with Figures 8-11 ,like Figure 21 and Figures 23-26 As shown, the process of the door 30 rotating from the closed state to G4.

[0238] In this first stage, the door 30 opens sequentially from 0° through G1, G2, G3 to G4. 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; the second hinge axis 42 first moves relative to the first guide segment K1, and then relative to the second guide segment K2; the third hinge axis 43 moves relative to the fourth guide segment K4. When the door 30 opens to G4, the first hinge axis 41 moves to the end point of the guide trajectory line S near the door side wall 32—the fourth guide position I4.

[0239] The opening process in the first stage described above is illustrated with reference to door 30 (guide groove / guide channel).

[0240] When the door 30 opens from 0° to G4, the axis triangle IEF rotates clockwise from I0E0F0 and moves sequentially towards the side wall 32 of the door to I1E1F1, I2E2F2, I3E3F3, and I4E4F4 (I0E0F0→I1E1F1→I2E2F2→I3E3F3→I4E4F4). Since the axis triangle IEF is set 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 towards the side wall 32 of the door.

[0241] In summary, during the process of opening the door 30 from the closed state to G4, with the door 30 (guide groove / guide channel) as the reference frame, the housing 10 has a displacement relative to the door 30 that is parallel to the rear wall 33 and points towards the side wall 32. 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 G4, the door 30 has a displacement relative to the housing 10 that is parallel to the rear wall 33 and points away from the side wall 32.

[0242] The second stage, see figure. Figures 11-14 ,like Figure 22 and Figures 26-28 As shown, the door 30 is rotated open from G4 to G6.

[0243] In this second stage, the door 30 opens sequentially from G4 through G5 to G6. 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 sidewall 32; the second hinge axis 42 moves relative to the second guide section K2; and the third hinge axis 43 moves relative to the fourth guide section K4. When the door 30 opens to G6, the second hinge axis 42 moves to the third connection position c.

[0244] The second stage of the opening process described above is illustrated with reference to door 30 (guide groove / guide channel).

[0245] When door 30 opens from G4 to G6, the pivot triangle IEF rotates clockwise from I4E4F4 and moves sequentially to I5E5F5 and I6E6F6 away from the door sidewall 32 (I4E4F4→I5E5F5→I6E6F6). Since the pivot 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 away from the door sidewall 32.

[0246] In summary, during the opening process of door 30 from G4 to G6, 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 away from the side wall 32. Based on the relativity of motion, with housing 10 as the reference frame, during the opening process of door 30 from G4 to G6, door 30 relative to housing 10 has a displacement parallel to the rear wall 33 and pointing towards the side wall 32.

[0247] The third stage, such as Figures 14-19 ,like Figure 22 and Figures 28-33 As shown, door 30 is rotated open from G6 to G... max =G 11 During the process.

[0248] In this third stage, the door 30 passes through G7, G8, G9, and G6 sequentially. 10 Open to G 11 During this process, the first central axis I moves linearly along the guide trajectory S of the guide groove in a direction away from the door sidewall 32; the second hinge axis 42 moves relative to the third guide segment K3; and the third hinge axis 43 moves relative to the fifth guide segment K5. The door 30 opens to G. 11 At that time, the third hinge axis 43 moves to the sixth connection position f.

[0249] The opening process in the third stage described above is illustrated with reference to door 30 (guide groove / guide channel).

[0250] Door 30 is opened from G6 to G 11 At that time, the axial triangle IEF rotates clockwise from I6E6F6 and moves sequentially to I7E7F7, I8E8F8, I9E9F9, and I6E6F6 away from the door sidewall 32. 10 E 10 F 10 I 11 E 11 F 11 (I6E6F6→I7E7F7→I8E8F8→I9E9F9→I) 10 E 10 F 10 →I 11 E 11 F 11 Since the axis triangle IEF is 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.

[0251] In summary, door 30 is opened from G6 to G 11 During the process, with the door 30 (guide groove / guide channel) as a reference, the housing 10 relative to the door 30 has a displacement parallel to the rear wall 33 of the door and pointing towards the side away from the side wall 32 of the door. Combining the motion situations in the second and third stages above, and based on the relativity of motion, with the housing 10 as a reference, the door 30 opens from G6 to G... 11 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.

[0252] Based on the situations in the first, second, and third stages, it can be seen that, according to the relativity of motion, taking the box 10 as the reference frame, the displacement of the door 30 is either parallel to the rear wall 33 and pointing away from the side wall 32, or parallel to the rear wall 33 and pointing towards the side wall 32. The displacement of the door 30 relative to the box 10, parallel to the rear wall 33 and pointing away from the side wall 32, is denoted as the first direction displacement. The displacement parallel to the rear wall 33 of the door and pointing towards the side wall 32 of the door is denoted as the second direction displacement. Among them, the displacement in the second direction displacement in the first direction They are all parallel to the rear wall 33 of the door, but their orientation is opposite to that of the side wall 32 of the door.

[0253] It should be further clarified that "pointing towards the door side wall 32" refers to the direction from the end of the door body 30 opposite to the door side wall 32 towards the door side wall 32; "pointing towards the side away from the door side wall 32" refers to the direction from the door side wall 32 towards the end of the door body 30 opposite to the door side wall 32. 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.

[0254] Specifically, based on the analysis of the first to third stages above, it can be seen that during the process of the door 30 opening from the closed state to G4 (<90°), relative to the housing 10, in the displacement decomposition of the door 30, the door 30 has a first directional displacement parallel to the rear wall 33 and pointing away from the side wall 32. .

[0255] Door 30 is opened from G4 to G 11 During the process of (>90°), relative to the box body 10, in the displacement decomposition of the door body 30, the door body 30 has a second directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. .

[0256] See Figures 34-38 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.

[0257] (1) such as Figures 35-36 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.

[0258] 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.

[0259] (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 G4 (G4 < 90°), it can be seen that: during the process of the door 30 opening from the closed state to G4, 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. That is, displacement in the first direction Pointing to the inner front side (inward and forward side) of housing 10.

[0260] like Figure 35 As shown, in the displacement coordinate system AOB, during the process of the door 30 opening from the closed state to G4, the first direction displacement of the door 30 is... Located in the second quadrant (A < 0, B > 0). Displacement in the first direction. Perform displacement decomposition on the A-axis and B-axis; displacement in the first direction. The displacement component on axis A is <0, the component displacement on the B-axis is >0. That is, under the trajectory feature settings of the present invention, during the process of the door 30 opening from the closed state to G4, in the displacement coordinate system AOB, the door 30 has <0 and >0. Therefore, it can be concluded that: relative to the box 10, the door 30 has a tendency to move along the negative 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 G4 (G4 < 90°), the door 30 has a tendency to move inward and forward relative to the box 10.

[0261] (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 G4 (G4 < 90°) to G6 = 90°, it can be seen that: during the process of the door 30 opening from G4 to 90°, with the box 10 as the reference, the door 30 has a second displacement parallel to the rear wall 33 and pointing towards the side wall 32 of the door. That is, displacement in the second direction Pointing to the outer rear side of housing 10 (outward and rearward side).

[0262] like Figure 36 As shown, in the displacement coordinate system AOB, during the process of the door 30 opening from G4 to 90°, the second direction displacement of the door 30 is... Located in the fourth quadrant (A > 0, B < 0). For displacement in the second direction... Perform displacement decomposition on the A-axis and B-axis; displacement in the second direction. The displacement component on axis A is >0, the displacement component on the B-axis is <0. That is, under the trajectory feature settings of the present invention, during the process of the door 30 opening from G4 to 90°, in the displacement coordinate system AOB, the door 30 has >0 and <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 G4 to 90°, the door 30 has a tendency to move outward and backward relative to the box 10.

[0263] (2) such as Figure 37 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.

[0264] Based on the aforementioned description of the displacement direction of door 30 relative to box 10 when door 30 is opened to 90°, it can be seen that when door 30 is opened to 90°, with box 10 as the reference, door 30 has a second displacement parallel to the rear wall 33 and pointing towards the side wall 32. That is, displacement in the second direction Pointing to the rear side (to the rear) of housing 10.

[0265] like Figure 37 As shown, in the displacement coordinate system AOB, the second direction displacement of the door body 30 is... Displacement along the B-axis and pointing in the negative direction of the B-axis. For the second direction... Perform displacement decomposition on the A-axis and B-axis; displacement in the second direction. The displacement component on axis A is =0, the displacement component on the B-axis is = <0. That is, under the trajectory feature settings of the present invention, when the door 30 is opened to 90°, in the displacement coordinate system AOB, the door 30 has =0 and = <0. Therefore, it can be concluded that: relative to the box 10, the door 30 has a tendency to move 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 backward relative to the box 10.

[0266] (3) such as Figure 38 As shown, when the door 30 is rotated open from 90° to G... 11 During the process, as the door 30 rotates counterclockwise relative to the housing 10, the door sidewall 32 also rotates counterclockwise during the opening process. In the plane where the top wall of the housing 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.

[0267] 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... 11 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... 11 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.

[0268] In this embodiment, G4 < G6 = 90°; combined with the aforementioned door 30 opening from G6 = 90° to G... 11As can be seen from the displacement direction of the door 30 relative to the box 10 during the process: the door 30 opens from 90° to G. 11 During the process, with the box body 10 as a reference, the door body 30 has a second directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. That is, displacement in the second direction Pointing to the inner rear side (inward and rearward side) of housing 10.

[0269] like Figure 38 As shown, in the displacement coordinate system AOB, the door 30 is opened from G6=90° to G... 11 During the opening process, the door body 30 is displaced in the second direction. Located in the third quadrant (A < 0, B < 0). For displacement in the second direction... Perform displacement decomposition on the A-axis and B-axis; displacement in the second direction. The displacement component on axis A is <0, the component displacement on the B-axis is <0. That is, under the trajectory feature setting of the present invention, the door 30 moves from G6=90° to G 11 During the opening process, in the displacement coordinate system AOB, the door body 30 has <0 and <0. Therefore, it can be concluded that: relative to the box 10, the door 30 has a tendency to move along the negative direction of axis A and towards the negative direction of axis B; that is, the door 30 opens from G6 = 90° to G... 11 During the opening process, the door 30 tends to move inward and backward relative to the box 10.

[0270] In summary, door 30 opens from the closed state to G. 11 Throughout the entire process, the movement of the door 30 relative to the box 10 is divided into three stages: the door 30 tends to move inward first, then outward, and then inward again.

[0271] It should be noted that this implementation only refers to some angles within the range of 0~90°, 90°, and 90°~G. max =G 11 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 inward → outward → inward movement trend during the opening process.

[0272] In this embodiment, the door 30 tends to move inward during the first stage of opening. Specifically, the first hinge shaft 41 moves a certain distance relative to the guide groove towards the door side wall 32, causing the door 30 to move inward a certain distance. Simultaneously, while the first hinge shaft 41 moves relative to the guide groove towards the door side wall 32, 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. This configuration is suitable for embedded installations of refrigerators placed in cabinets. The inward movement of the door 30 when opened effectively compensates for the outward displacement of the first side edge W caused by 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. This effectively avoids interference between the door 30 and the cabinet 100 when open, further reducing the limitations of the cabinet 100 space on the size of the refrigerator it can accommodate, and improving the utilization rate of the cabinet 100 space. In addition, in this embodiment, during the process of opening the door 30 from the closed state to G4, the door 30 moves inward and forward a certain distance at the same time, so that the door 30 moves away from the box 10 quickly, effectively avoiding squeezing the door seal 5.

[0273] In this embodiment, the second stage of the door 30 opening has an outward tendency. Specifically, during the process of the door 30 opening from G4 to G6 (=90°), the first hinge shaft 41 moves a certain distance away from the door side wall 32 relative to the guide groove, causing the door 30 to move outward a certain distance. While the first hinge shaft 41 moves away from the door side wall 32 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 continues to move closer to the door side wall 32 and away from the front wall 31 relative to the guide groove. This arrangement causes the door 30 to move outward during the 90° opening process, reducing the obstruction of the access opening by the door 30, facilitating the retrieval of items, and increasing the lateral width of the drawers while ensuring that drawers placed in the storage room can be pulled out, thus increasing the space utilization of the drawers.

[0274] In this embodiment, the second stage is set up on the premise that the door 30 is moved inward in the first stage, which can take into account the different needs of the two stages at the same time and increase the flexibility and applicability of the refrigerator.

[0275] It should be noted that in some embodiments of this application, the second stage setting described above can be set independently, and is not limited by the inward movement of the door 30 during the process of opening from the closed state to G4 in the first stage; the setting of the door 30 opening from the closed state to G4 in conjunction with the second stage setting can be different from the setting of the first stage. For example, it can be set that the door 30 rotates around the first hinge axis 41 during the process of opening from the closed state to G4. Alternatively, it can be set that the door 30 has an outward movement tendency during the process of opening from the closed state to G4.

[0276] In this embodiment, the third stage of the door 30 opening has a tendency to move inward; specifically, the door 30 opens from G6 (=90°) to G... 11 During the process, the first hinge shaft 41 moves a certain distance away from the door side wall 32 relative to the guide groove, causing the door 30 to move a certain distance inward. Simultaneously, while the first hinge shaft 41 moves away from the door side wall 32 relative to the guide groove, the second hinge shaft 42 moves away from both the door side wall 32 and the front wall 31 relative to the guide groove, and the third hinge shaft 43 moves closer to both the door side wall 32 and the front wall 31 relative to the guide groove. This configuration is suitable for built-in installations of refrigerators placed in cabinets, reducing the cabinet's limitation on the maximum opening angle of the door 30, allowing the refrigerator door 30 installed in the cabinet to open to a greater angle.

[0277] In this embodiment, the third stage is set on the premise that the door 30 moves inward in the first stage and moves outward in the second stage. This can take into account the different needs of the three stages at the same time, effectively increasing the flexibility and applicability of the refrigerator.

[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 inward movement of the door 30 during the process of opening from the closed state to G4 in the first stage, nor by the outward movement of the door 30 during the process of rotating from G4 to G6 in the second stage. The door 30 opening from the closed state to G4 in conjunction with the third stage configuration can be different from the first stage configuration; similarly, the door 30 opening from G4 to G6 in conjunction with the third stage configuration can be different from the second stage configuration.

[0279] Combination Figures 39-49As 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 rotational movement, the rotation axis of the door 30 remains 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 39 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 40 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 rotated to G2 with door 30 as the center axis relative to the first central axis I of door 30 when it was opened to G1 (the first central axis I (I1) of the previous state). 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 41-49 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 G4, 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 G4, the door 30 has a tendency to move inward and forward.

[0282] During the process of opening the door 30 from G4 to G6, 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 process of opening the door 30 from G4 to G6, the door 30 has a tendency to move outward and backward.

[0283] Door 30 is opened from G6 to G 11 During the process, in this application, the first side edge position W is always located on the side of W' closest to the second body side wall and the retrieval port; the second side edge position N is always located on the side of N' closest to the second body side wall and the retrieval port; the side sealing edge position H is always located on the side of H' closest to the second body side wall and the retrieval port. That is, the door 30 is opened from G6 to G 11 During the process, the door 30 has a tendency to move inward 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 8-20 As shown, a first reference plane M1 and a second reference plane M2 are also defined. (See also...) Figure 20 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] During the opening of the door 30, the side sealing edge H moves along with the opening of the door 30, and its trajectory is recorded as the side sealing edge trajectory line. In the projection of the plane containing the top wall of the box 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, and then moves towards the first reference plane M1 and away from the second reference plane M2.

[0291] In the projection of the top wall of the housing 10 onto the plane, the straight line containing the side sealing edge H and the second side edge N is denoted as HN. During the opening of the door 30, as the door 30 opens from the closed state to angle G0, the second side edge N is located on the side of the side sealing edge H closest to the first body side wall. And as the door 30 opens from angle G0 to angle G... 11 During the process, the second side edge N is located on the side of the side sealing edge H away from the side wall of the first body. In some embodiments of this application, the maximum opening angle of the door 30 can reach 150°. When the refrigerator is not embedded in a cabinet, the hinge assembly with the trajectory characteristics of this embodiment allows the maximum opening angle of the door 30 to be even greater. It can be set that G0 is any value between 123° and 127°.

[0292] Example 2

[0293] The difference between this embodiment and embodiment one is that, in this embodiment, the first stage of the door 30 opening from the closed state to the inward movement of G4 is not included. Specifically, the first hinge component in this embodiment is the same as in embodiment one, and will not be repeated here. Figure 50 As shown, in this second 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 G4 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 G4 in the first embodiment. However, it should be noted that the settings in this embodiment are not limited to G4.

[0294] Specifically, in this embodiment, the guide portion 60 on the door body 30 rotates counterclockwise by G4 relative to the guide portion 60 in Embodiment 1, and the guide portion 50 on the door body 30 rotates counterclockwise by G4 relative to the guide portion 50 in Embodiment 1.

[0295] Compared to Embodiment 1, where the guide portion 50 is parallel to the front wall 31, in Embodiment 2, the angle between the guide portion 50 and the front wall 31 is G4; and the guide portion 50 extends from its end near the side wall 32 towards the side wall 32 and away from the side wall 32 and closer to the front wall 31. Correspondingly, 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 increases linearly. It should be noted that in this embodiment, the angle between the guide portion 50 and the front wall 31 is not limited to G4. The angle between the guide trajectory line S and the front wall 31 can be any value between 58° and 88° to effectively control the outward movement angle range of the door 30 during the initial stage of opening.

[0296] For consistency, the guide positions on the guide trajectory line S are the same as in Embodiment 1. The fourth guide position I4 is the endpoint of the guide trajectory line S near the door side wall 32, and the eleventh guide position I... 11 To guide the trajectory line S away from the endpoint of the door sidewall 32; eleventh guide position I 11 Located on the side of the fourth guide position I4 away from the door side wall 32 and close to the door 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. Fourth guide position I4, 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 Eleventh Leading Bit I 11 Move away from the side wall 32 of the door and towards the front wall 31 of the door in sequence.

[0297] Similar to Embodiment 1, 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, and a sixth guide segment K6 connected end-to-end. That is, the guide trajectory line K is a closed loop, and the guide groove is an annular closed groove, effectively limiting 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 sixth guide segment K6 and the first guide segment K1 is designated as the first connection position a; the connection point between the first guide segment K1 and the second guide segment K2 is designated as the second connection position b; the connection point between the second guide segment K2 and the third guide segment K3 is designated as the third connection position c; the connection point between the third guide segment K3 and the fourth guide segment K4 is designated as the fourth connection position d; the connection point between the fourth guide segment K4 and the fifth guide segment K5 is designated as the fifth connection position e; and the connection point between the fifth guide segment K5 and the sixth guide segment K6 is designated as the sixth connection position f. In this embodiment, the guide groove surrounds its guide centroid O, and the first guide segment K1, the second guide segment K2, the third guide segment K3, the fourth guide segment K4, and the fifth guide segment K5 all protrude in a direction away from the guide centroid O; the sixth guide segment K6 protrudes in a direction closer to the guide centroid O, so that the guide trajectory line K smoothly transitions from the fifth connection position e to the first connection position a. It should be noted that in this embodiment, the relationship between the guide part 50 and the guide part 60 and the door body 30 is rotated by a corresponding angle compared with that in Embodiment 1, thereby causing the positional relationship between the guide part 50 and the guide part 60 and the door side wall 32 and the front wall 31 of the door body 30 to change in Embodiment 2 compared with Embodiment 1 (see Figure 50 (This will not be elaborated upon here.)

[0298] In this second embodiment, when the door 30 is closed, the first hinge shaft 41 is located at the fourth guide position I4 near the door side wall 32 on the guide trajectory line S, the second hinge shaft 42 cooperates with the second guide segment K2, and the third hinge shaft 43 cooperates with the fourth guide segment K4.

[0299] In this second embodiment, the first connecting position a is located on the side of the fourth guide position I4 near the rear wall 33 of the door. The second connecting position b is located on the side of the first connecting position a near the side wall 32 and the front wall 31 of the door; in this embodiment, the second connecting position b is located on the side of the fourth guide position I4 near the rear wall 33 and the side wall 32 of the door.

[0300] The third connection position c is located on the side of the second connection position b that is close to the front wall 31 and away from 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 that is close to the side wall 32 of the door.

[0301] The fourth connection position d is located on the side of the third connection position c away from the rear wall 33 and the side wall 32 of the door, and the fourth connection position d is located on the side of the first connection position a away from the side wall 32 of the door.

[0302] The fifth connection position e is located on the side of the fourth connection position d 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 fifth connection position e is located on the side of the first connection position a that is close to the rear wall 33 of the door.

[0303] The sixth connection position f is located on the side of the fifth connection position e that is close to the front wall 31 and the side wall 32 of the door. In this embodiment, the sixth connection position f is located on the side of the first connection position a that is close to the rear wall 33 of the door and away from the side wall 32 of the door. As an alternative configuration, the sixth connection position f is located on the side of the fourth connection position d that is close to the side wall 32 and the rear wall 33 of the door.

[0304] In the projection of the plane containing the front wall 31, the second connecting position b, the third connecting position c, the first connecting position a, the sixth connecting position f, the fourth connecting position d, and the fifth connecting position e are sequentially moved away from the side wall 32. In this embodiment, in the projection of the plane containing the front wall 31, the third connecting position c is closer to the second connecting position b than the first connecting position a.

[0305] As an optional configuration, in the projection of the plane containing the front wall 31, the third connecting position c and the second connecting position b are adjacent to each other. Alternatively, in the projection of the plane containing the front wall 31, the distance between the third connecting position c and the second connecting position b is less than 4mm; and the distance between the first connecting position a and the second connecting position b is less than 12mm.

[0306] In the projection of the plane containing the side wall 32 of the door, the fourth connecting position d, the third connecting position c, the second connecting position b, the first connecting position a, the sixth connecting position f, and the fifth connecting position e are successively moved away from the front wall 31 of the door.

[0307] 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 2, when the door 30 is in the closed state, the first central shaft I is located at the fourth guide position I4, the second central shaft E is located at E4 relative to the door 30, and the second central shaft F is located at F4 relative to the door 30.

[0308] As a configurable method, when the door 30 is closed, the second hinge shaft 42 is interference-fitted with the second guide section K2, and the third hinge shaft 43 is interference-fitted with the fourth guide section K4; this prevents the door 30 from continuing to move in the closing direction from the closed state, avoids excessive force on the door 30 causing it to close excessively and then rebound open; and enables the door 30 to remain stably in the closed state, increasing the stability of the door 30 in the closed state.

[0309] In this second embodiment, the opening angles of the door 30 are denoted as Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, and Q8. For example... Figures 50-59As shown, considering the correlation between Embodiment 2 and Embodiment 1, the opening process of the door 30 is explained from the following eight perspectives. Wherein, Q0=0°=G4-G4, Q1=G5-G4, Q2=G6-G4, Q3=G7-G4, Q4=G8-G4, Q5=G9-G4, Q... 6` =90°, Q6=G 10 -G4, Q7=G 11 -G4. It should be noted that the angle relationship between the two embodiments in this second embodiment and the angle relationship in the first embodiment is only for illustrating the motion in this second embodiment. The angle in this second embodiment is not limited by the angle relationship in the above two embodiments.

[0310] See Figure 50 When the door 30 is closed, Q0=0°. 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.

[0311] See Figure 51 When the door 30 is opened to Q1=G5-G4, 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.

[0312] See Figure 52 When the door 30 is opened to Q2=G6-G4, 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. Wherein, Q2 < 90°.

[0313] See Figure 53 When the door 30 is opened to Q3=G7-G4, 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.

[0314] See Figure 54 When the door 30 is opened to Q4=G8-G4, 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.

[0315] See Figure 55 When the door 30 is opened to Q5=G9-G4, 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.

[0316] See Figure 56 Door 30 opens to Q 6` When the angle is 90°, the first central axis I moves to the guide trajectory line S. 6` The guide position, the second central axis E is located relative to the door body 30 at E 6` The third central axis F is located relative to the door body 30 at F 6` That is, the axial triangle IEF is located relative to the door body 30 at I. 6` E 6` F 6` The defined triangle position.

[0317] See Figure 57 The door 30 opens to Q6=G 10 At point -G4, 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 .

[0318] See Figure 58 The door 30 opens to Q7=G 11 At point -G4, the first central axis I moves to the eleventh guide position I of the guide trajectory line S. 11 The second central axis E is located relative to the door body 30 at E 11 The third central axis F is located relative to the door body 30 at F 11 That is, the axis triangle IEF is located in the eleventh triangle position relative to the door body 30. 11 E 11 F 11 .

[0319] Similar to the principle in Embodiment 1, it can be concluded that in this Embodiment 2, with the door body 30 (guide groove / guide channel) as the reference frame, relative to the door body 30, the housing 10 has a displacement parallel to the rear wall 33 and pointing towards the side away from 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 the housing 10 as the reference frame, during the process of opening the door body 30 from the closed state to its maximum angle, the door body 30 relative to the housing 10 has a displacement parallel to the rear wall 33 and pointing towards its side wall 32, and a displacement parallel to the side wall 32 and pointing towards the side away from the front wall 31.

[0320] In the same way as in Embodiment 1, the displacement relative to the box body 10, parallel to the rear wall 33 of the door and pointing towards the side wall 32 of the door, is denoted as the second direction displacement. In this second embodiment, the displacement parallel to the door sidewall 32 and pointing away from the front door wall 31 is denoted as the third-direction displacement. .

[0321] Based on the description of pointing towards the side wall 32 or away from the side wall 32 in Embodiment 1, it is necessary to further explain that "pointing 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 above-mentioned second directional displacement... Third-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.

[0322] The following is based on the same principle as in Example 1. A displacement coordinate system AOB is established that is stationary relative to the box 10. The movement trend of the door 30 is described in the displacement coordinate system AOB.

[0323] (1) such as Figures 60-61 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.

[0324] 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.

[0325] (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 Q2, it can be seen that: during the process of the door 30 opening from the closed state to Q2, with the box 10 as the reference, the door 30 has a second displacement parallel to the rear wall 33 and pointing towards the side wall 32. and a third-direction displacement parallel to the side wall 32 of the door and pointing away from the front wall 31 of the door. That is, during this opening phase, the displacement in the second direction... The third-dimensional displacement points to the outer rear side (outward and rearward side) of the housing 10. To the inner rear side of the housing 10 (to the inner rear side).

[0326] like Figure 60 As shown, in the displacement coordinate system AOB, during the process of the door 30 opening from the closed state to Q2, the second direction displacement of the door 30 is... Located in the fourth quadrant (A>0, B<0), third-direction displacement Located in the third quadrant (A < 0, B < 0). For displacement in the second direction... and third-party displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the second direction The displacement component on axis A is >0, the displacement component on the B-axis is <0; Third-direction displacement 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, under the trajectory feature settings of the present invention, during the process of the door 30 opening from the closed state to Q2, in the displacement coordinate system AOB, the door 30 has >0 and Two displacement components < 0. From this, we can conclude 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 the closed state to Q2, the door 30 has a tendency to move outward and backward relative to the box 10.

[0327] Conversely, when the door 30 is closed, during the closing process from angle Q2, the door 30 undergoes displacement in the second direction. Parallel to the rear wall 33 of the door and pointing away from the side wall 32 of the door, the third-direction displacement Parallel to the side wall 32 of the door and pointing towards the front wall 31 of the door;

[0328] Second directional displacement The displacement component on axis A is The displacement component on the B-axis is Third-direction displacement The displacement component on axis A is The displacement component on the B-axis is Under the trajectory features of this invention, = + <0; = + >0. That is, during the closing process of the door 30 from angle Q2, 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 closing process of the door 30 from angle Q2, the door 30 has a tendency to move inward relative to the box 10.

[0329] (1.2) Combined with the door 30 opening from Q2 to Q 6` As can be seen from the displacement direction of door 30 relative to box 10 during the process of opening 90°, door 30 opens from Q2 to Q... 6` During the process of 90°, with the box body 10 as the reference, the door body 30 has a second directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. and a third-direction displacement parallel to the side wall 32 of the door and pointing away from the front wall 31 of the door. That is, during this opening phase, the displacement in the second direction... The third-dimensional displacement points to the outer rear side (outward and rearward side) of the housing 10. To the inner rear side of the housing 10 (to the inner rear side).

[0330] like Figure 61 As shown, in the displacement coordinate system AOB, the door 30 opens from Q2 to Q... 6` During the process of 90°, the second directional displacement of the door 30 is located in the fourth quadrant (A>0, B<0), and the third directional displacement... Located in the third quadrant (A < 0, B < 0). For displacement in the second direction... and third-party displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the second direction The displacement component on axis A is >0, the displacement component on the B-axis is <0; Third-direction displacement 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, under the trajectory feature settings of the present invention, the door 30 opens from Q2 to Q. 6` During the process of 90°, in the displacement coordinate system AOB, the door body 30 has <0 and Two displacement components < 0. From this, we can conclude that: relative to the housing 10, the door 30 has a tendency to move along the negative direction of the A axis and towards the negative direction of the B axis; that is, during the process of opening the door 30 from the closed state to Q2, the door 30 has a tendency to move inward and backward relative to the housing 10.

[0331] (2) such as Figure 62 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.

[0332] When the door 30 is opened to 90°, with the box 10 as a reference, the door 30 has a second directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. and a third-direction displacement parallel to the side wall 32 of the door and pointing away from the front wall 31 of the door. That is, at this opening angle, the displacement in the second direction The third-dimensional displacement points to the rear side of housing 10. Towards the inside of the housing 10.

[0333] like Figure 62 As shown, in the displacement coordinate system AOB, the second direction displacement of the door body 30 is... Displacement along the B-axis and pointing in the negative direction of the B-axis, in the third direction Displacement along axis A and pointing in the negative direction of axis A. Second direction displacement. The displacement component on axis A is = The displacement component on the B-axis is = <0; Third-direction displacement The displacement component on axis A is = <0, the component displacement 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 <0 and Two displacement components < 0; from this, it can be concluded that: relative to the box 10, the door 30 has a tendency to move along the negative direction of the A axis and towards the negative direction of the B axis; that is, when the door 30 is opened to 90°, the door 30 has a tendency to move inward and backward relative to the box 10.

[0334] (3) such as Figure 63 As shown, during the process of the door 30 rotating open from 90° to Q7, 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 end of the door 30 opposite to the door sidewall 32.

[0335] During the opening process described above, the door sidewall 32 rotates counterclockwise from a position perpendicular to the reference plane M0. The angle between the door sidewall 32 and the plane containing the retrieval opening gradually increases, while the angle between the door sidewall 32 and the reference plane M0 gradually decreases. That is, during the process of the door body 30 rotating open from 90° to Q7, relative to the box body 10, along the direction from the second side edge N to the first side edge W, the door sidewall 32 extends away from the second sidewall and closer to the retrieval opening. At the same time, the angle between the door rear wall 33 and the plane containing the retrieval opening gradually decreases, while the angle between the door rear wall 33 and the reference plane M0 gradually increases. That is, during the process of the door body 30 rotating open from 90° to Q7, relative to the box body 10, along the direction from the door sidewall 32 to the end of the door body 30 opposite to the door sidewall 32, the door rear wall 33 extends away from the second sidewall and the retrieval opening.

[0336] During the process of the door 30 opening from 90° to Q7, with the box 10 as the reference, the door 30 has a second directional displacement parallel to the rear wall 33 and pointing towards the side wall 32. and a third-direction displacement parallel to the side wall 32 of the door and pointing away from the front wall 31 of the door. That is, during this opening phase, the displacement in the second direction... The third-dimensional displacement points to the inner rear side (inward and rearward side) of the housing 10. To the inner front side (inward and forward side) of the housing 10.

[0337] like Figure 63 As shown, in the displacement coordinate system AOB, during the process of the door 30 opening from 90° to Q7, the second direction displacement of the door 30 is... Located in the third quadrant (A < 0, B < 0), third-direction displacement Located in the second quadrant (A < 0, B > 0). For displacement in the second direction... and third-party displacement Displacement decomposition is performed on the A-axis and B-axis respectively; displacement in the second direction The displacement component on axis A is <0, the component displacement on the B-axis is <0; Third-direction displacement The displacement component on axis A is <0, the component displacement on the B-axis is >0. Among them, the trajectory feature settings of this invention include: Then there is, = + <0, = + <0. That is, under the trajectory feature settings of the present invention, during the process of the door 30 opening from 90° to Q7, in the displacement coordinate system AOB, the door 30 has <0 and Two displacement components < 0. From this, it can be concluded that: relative to the box 10, the door 30 has a tendency to move along the negative direction of the A axis and towards the negative direction of the B axis; that is, during the process of the door 30 opening from the closed state to 90°, the door 30 has a tendency to move inward and backward relative to the box 10.

[0338] In summary, during the entire process of the door 30 opening from the closed state to Q7, the movement of the door 30 relative to the housing 10 is divided into two stages: the door 30 tends to move outward first and then inward.

[0339] 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 =Q7 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 outward and then inward (outward → inward) during the opening process.

[0340] In this second embodiment, the door 30 tends to move outward during the first stage of opening. Specifically, as an optional configuration, during the process of the door 30 rotating open from the closed state to Q2, 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 away from the door side wall 32 and closer to the door front wall 31, and the third hinge shaft 43 moves relative to the guide groove away from the door front wall 31. As an optional configuration, during the above opening process, the third hinge shaft 43 moves relative to the guide groove away from the door front wall 31 and closer to the door side wall 32.

[0341] In this second embodiment, the door 30 tends to move inward during the second stage of opening; that is, the door 30 tends to move inward as it continues to open in Q2. Specifically, as an optional configuration, during the opening of the door 30 from Q2 to Q7, 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 away from the door side wall 32 and closer to the door front wall 31, and the third hinge shaft 43 moves relative to the guide groove closer to the door side wall 32. As an optional configuration, during the second stage of opening, the third hinge shaft 43 first moves relative to the guide groove away from the door front wall 31, and then moves closer to the door front wall 31. The inward movement of the door 30 during opening is applicable to the scenario of a refrigerator being installed in a built-in cabinet. On one hand, this inward movement of the door 30 during the initial opening stage effectively compensates for the outward displacement of the first side edge W caused by simple rotation of the door 30. It limits the distance the first side edge W extends beyond the reference plane M0 to 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 imposed by the cabinet 100 on the size of the refrigerator it can accommodate, improving the utilization rate of the cabinet 100 space. On the other hand, in this second embodiment, the inward movement of the door 30 during the process of opening to its maximum angle reduces the cabinet's 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.

[0342] It should be noted that the first stage and the second stage in this embodiment 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.

[0343] Combination Figures 64-71 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 64In 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 Q1 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 Q1 according to the configuration of the present invention. Figure 65 In the diagram, the dashed line indicates the position of the door 30, which is the position reached when the 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 (I5) of the previous state) of the door 30 as the central axis when it is opened to Q1; the solid line indicates the position of the door 30, which is the position reached when it is rotated to Q2 using the rotation method of this invention; similarly... Figures 66-71 This is a diagram comparing the positions of the two different opening methods at different opening angles.

[0344] 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:

[0345] During the process of opening the door 30 from the closed state to Q2, 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 process of opening the door 30 from the closed state to Q2, the door 30 has a tendency to move outward and backward.

[0346] During the opening of the door 30 from Q2 to Q7, in this application, the positions W of the first side edges are all located on the side of W' closest to the side wall of the second body and the retrieval opening; the positions N of the second side edges are all located on the side of N' closest to the side wall of the second body and the retrieval opening; and the positions H of the side sealing edges are all located on the side of H' closest to the side wall of the second body and the retrieval opening. That is, during the opening of the door 30 from Q2 to Q7, the door 30 has a tendency to move inward and backward.

[0347] The movement trends in each of the above stages are consistent with the movement trends in the stages mentioned above.

[0348] 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.

[0349] 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.

[0350] Example 3

[0351] In this third embodiment, as Figures 72-76 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.

[0352] Based on the hinge assembly configuration in Embodiment 2, the hinge assembly in this embodiment has 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 3, during the process of opening the door 30 from the closed state to Q2, the door 30 moves outward first, which can prevent the opening of one of the two oppositely arranged doors 30 from causing the other door 30 to be opened, effectively reducing cold loss; at the same time, it can effectively reduce the obstruction of the access opening by the door 30.

[0353] Example 4

[0354] like Figures 72-76 As shown, the refrigerator in this embodiment four also has two oppositely arranged doors 30, which work together to open or close the access port. 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. Its arrangement is the same as in embodiment three.

[0355] Unlike Example 3, as Figure 77 As shown, the refrigerator in this fourth embodiment is suitable for use in situations where it is embedded in a cabinet.

[0356] Specifically, unlike Embodiment 3, the hinge assembly in Embodiment 4, combined with the hinge assembly in Embodiment 2, has overall motion characteristics in both a first stage and a second stage (see Embodiment 2, which will not be repeated here). That is, the door 30 moves outward in the first stage and then inward in the second stage during the opening process.

[0357] Specifically, in this fourth embodiment, during the process of opening from the closed state of door 30 to Q2, door 30 first moves outward. As door 30 continues to open from Q2, 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 air 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.

[0358] In some embodiments of this application, Q2 belongs to any value between 10° and 15°.

[0359] Example 5

[0360] like Figures 78-82 As shown in this fifth embodiment, the refrigerator includes two doors 30 arranged opposite each other, which cooperate 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 refrigerator body 10 to effectively prevent cold air from escaping.

[0361] 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.

[0362] 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.

[0363] 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).

[0364] like Figures 81-82 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.

[0365] 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' F The 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.

[0366] In this fifth 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 one possible configuration, the second mating portion is located on the side of the second hinge member away from the door side wall 32.

[0367] 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.

[0368] 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.

[0369] 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.

[0370] When the door is closed at angle G (30°), 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, causing the door 30 to quickly and automatically close 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 B1 Set 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 can be automatically closed.

[0371] 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.

[0372] 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.

[0373] When the door is closed to G B1At that time, the elastic deformation of the second mating part reaches the maximum deformation during the closing process of the door body 30.

[0374] 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.

[0375] That is, in this fifth 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.

[0376] 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 5, during the process of opening the door 30 from the closed state to Q2, the door 30 moves outward. Correspondingly, during the closing process from Q2 to the closed state, the door 30 tends to move inward.

[0377] As a configurable method, G B1 >Q2. That is, during the automatic shutdown phase (by G... B1 During the closing process (as the door body 30 closes at angle Q2), the door body 30 tends to move inward; the inward movement of the door body 30 exerts an inward force on the tilting beam 9, which causes the tilting beam to tilt. In this embodiment, the door body 30, under the influence of G... B1 During the closing process, it has the characteristic of automatic closing, and the door 30 continues to move inward. The inward force exerted by the door 30 on the flip beam 9 is always present, which can ensure that the flip beam 9 flips into place and the door 30 is closed in place, avoiding cold leakage caused by the flip beam 9 not flipping into place.

[0378] In some embodiments of this application, reference is made to Figures 83 to 86 The door body 30 includes a mounting block, which is mounted on the door body 30 at a position opposite to the hinge plate 40. The mounting block has a guide portion 50, a guide portion 60, and a second mating portion. The first mating portion is formed on the side of the extension 402 of the hinge plate 40 away from the door sidewall 32.

[0379] Specific reference Figures 83-86 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. (Referring to section 83-) Figure 86The mounting block has a guide groove formed thereon; 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.

[0380] 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.

[0381] 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.

[0382] 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 mates with the inner wall of the second receiving portion to limit the guide groove.

[0383] 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.

[0384] 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.

[0385] 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.

[0386] 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.

[0387] like Figures 84-86 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 85 When the door 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); as Figure 86 When the door 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. B1 Subsequently, the elastic energy stored in the hook part 84 during its initial deformation is gradually released. Under the combined action of the hook and the 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.

[0388] Example 6

[0389] like Figures 78-82As shown, the refrigerator in this sixth 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 near 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 five.

[0390] Furthermore, similar to Embodiment 5, Embodiment 6 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 5)

[0391] And satisfy G B1 >Q2. 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.

[0392] Unlike Example 5, as Figure 87 As shown, the refrigerator in this sixth embodiment is suitable for use in cabinet-integrated scenarios.

[0393] Specifically, unlike Embodiment 5, the hinge assembly in Embodiment 6, combined with the hinge assembly in Embodiment 2, possesses the overall motion characteristics of the first and second stages in Embodiment 2 (see Embodiment 2, which will not be repeated here). That is, the door 30, during the opening process, first moves outward in the first stage, and then moves inward in the second stage.

[0394] Specifically, in this sixth embodiment, during the process of opening from the closed state of door 30 to Q2, door 30 first moves outward. That is, during the closing process of door 30 at Q2, door 30 has a tendency to move inward. And during the continued opening process of door 30 from Q2, it also has a tendency to move inward. This setting, on the one hand, ensures that door 30 has an automatic closing and inward movement tendency during the closing process at angle Q2, ensuring that the flip beam 9 flips into place, so that door 30 is closed completely, avoiding cold loss. On the other hand, during the opening process of door 30, after door 30 moves outward a certain distance, door 30 begins to move inward from Q2, effectively compensating for the outward displacement of the first side edge W caused by the simple rotation of door 30. This limits the distance by which the first side edge W exceeds the reference plane M0 to not exceed the distance between the cabinet and the refrigerator side wall, effectively avoiding interference between door 30 and cabinet 100 when opening, further reducing the limitation of cabinet 100 space on the size of the refrigerator that can be accommodated, and improving the utilization rate of cabinet 100 space. Furthermore, by setting the door 30 to move inward during the process of opening to the maximum angle, the cabinet can reduce the limitation on the maximum opening angle of the door 30, allowing the refrigerator door 30 installed in the cabinet to open to a greater maximum angle.

[0395] In some embodiments of this application, Q2 belongs to any value between 10° and 15°.

[0396] 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.

[0397] 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.

[0398] 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, and the guide portion defines a closed loop guide trajectory line; wherein the guide trajectory line surrounds the guide trajectory line; The centroid of the guide trajectory line is denoted as guide centroid O, and the guide trajectory line surrounds its guide centroid O. 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, and a sixth guide segment K6 connected end to end in sequence; the first guide segment K1, the second guide segment K2, the third guide segment K3, the fourth guide segment K4, and the fifth guide segment K5 all protrude in a direction away from the guide centroid O; the sixth guide segment K6 protrudes in a direction closer to the guide centroid O, so as to smoothly connect the fifth connecting position e and the first connecting position a; Wherein, the connection point between the sixth guide segment K6 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, and the sixth guide segment K6 are connected in sequence are denoted as the second connection position b, the third connection position c, the fourth connection position d, the fifth connection position e, and the sixth connection position f, respectively. In the projection of the plane where the front wall of the door is located, the second connection position b, the first connection position a, the sixth connection position f, the third connection position c, the fifth connection position e, and the fourth connection position d are sequentially moved away from the side wall of the door; In the projection of the plane containing the side wall of the door, the third connection position c, the second connection position b, the fourth connection position d, the first connection position a, the sixth connection position f, and the fifth connection position e are sequentially moved away from the front wall of the door; During the process of the door opening from the second angle G2 to the fourth angle G4, the first hinge axis moves in a straight line relative to the guide part along the guide trajectory line towards the side wall of the door, the second hinge axis moves relative to the guide part away from the side wall of the door and towards the front wall of the door, the third hinge axis moves relative to the guide part, and the door opens the retrieval port and moves inward a certain distance. When the door is opened to the fourth angle G4, the first hinge shaft moves to the end of the guide near the side wall of the door, where G2 < G4 < 90°.

2. The refrigerator according to claim 1, characterized in that: Within the projection of the plane containing the top wall of the housing, on the side of the housing closest to the door, a displacement coordinate system AOB is established; wherein, in the displacement coordinate system AOB, OB is perpendicular to the plane containing the retrieval port, and the direction from the retrieval port to the front wall of the door when it is closed is positive; OA is parallel to the plane containing the retrieval port, and the direction from the second side wall to the first side wall is positive; the displacement coordinate system AOB is a stationary coordinate system relative to the housing; The door has a rear wall disposed opposite to the front wall of the door; During the process of the door opening from the second angle G2 to the fourth angle G4, the door has a first directional displacement parallel to the rear wall of the door and pointing away from the side wall of the door. ; Among them, the displacement in the first direction The displacement component on axis A is The displacement component on the B-axis is ;in, <0, >

0.

3. The refrigerator according to claim 1 or 2, 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.

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

5. The refrigerator according to claim 3, 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 put-out port.

6. The refrigerator according to claim 3, 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.

7. The refrigerator according to claim 1, 2, 4, 5, or 6, characterized in that: The guide trajectory line is parallel to the front wall of the door; during the opening of the door, the first hinge axis moves relative to the door in a direction parallel to the front wall of the door.

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

9. The refrigerator according to claim 1, 2, 4, 5, or 6, 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; 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; 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. 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 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 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. During the process of the door opening from the closed state to angle G0, the second side edge N is located on the side of the side sealing edge H that is close to the side wall of the first body; The door is opened from angle G0 to the maximum angle G that the door can reach. max During the process, the second side edge N is located on the side of the side sealing edge H that is away from the side wall of the first body.

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