Refrigerator

Abstract

The present application belongs to the technical field of refrigeration. Provided is a refrigerator, which aims to solve the technical problem whereby after a refrigerator door is opened by external force, the door is prone to keep turning at a large angle when the external force is removed. The refrigerator comprises a refrigerator body (1), a door (2) and a hinge (3). The hinge (3) comprises a fixing base (31), a hinge arm (32), a transmission assembly (33) and an elastic piece (34), wherein the fixing base (31) is connected to the refrigerator body (1); the hinge arm (32) is connected to the door (2); the transmission assembly (33) is connected between the fixing base (31) and the hinge arm (32); and the elastic piece (34) is connected to a rod piece in the transmission assembly (33), and during turning of the door (2), the elastic piece (34) presses against and fits with another rod piece in the transmission assembly (33) within at least part of the angle range so as to elastically deform to achieve a damping effect on the movement of the hinge. When the door (2) is opened to a certain door opening angle and the external force applied to the door (2) is removed, the damping effect from the elastic piece (34) can buffer at least part of the door opening force or the door closing force, so that the angle at which the door (34) continues to turn under the influence of inertia, self-weight or manufacturing deviation can be reduced.

Description

Refrigerator

[0001] This application claims priority to Chinese Patent Application No. 202421424404.9, filed on June 20, 2024; Chinese Patent Application No. 202421424425.0, filed on June 20, 2024; Chinese Patent Application No. 202421426429.2, filed on June 20, 2024; Chinese Patent Application No. 202421424449.6, filed on June 20, 2024; Chinese Patent Application No. 202421424510.7, filed on June 20, 2024; Chinese Patent Application No. 202410806428.9, filed on June 20, 2024; Chinese Patent Application No. 202421058363.6, filed on May 15, 2024; Chinese Patent Application No. 202410480516.4, filed on April 19, 2024; Chinese Patent Application No. 202420828701.3, filed on April 19, 2024; Chinese Patent Application No. 202420828666.5, filed on April 19, 2024; Chinese Patent Application No. 202420827511.X, filed on April 19, 2024; Chinese Patent Application No. 202420828603.X, filed on April 19, 2024; Chinese Patent Application No. 202420828525.3, filed on April 19, 2024; and Chinese Patent Application No. 202420827573.0, filed on April 19, 2024; the contents of all of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of refrigeration, and in particular, to a refrigerator. BACKGROUND

[0003] The refrigerator comprises a cabinet, a door body and a hinge. The cabinet forms a containing cavity for containing food or other articles. The door body is movably arranged on the cabinet by the hinge to close or open the containing cavity.

[0004] In the related art, the hinge comprises six connecting rods. When the refrigerator needs to be embedded in a cabinet, the hinge can control the door body to pass around the edge of the cabinet and move outward during opening, so as to avoid interference between the door body and the cabinet during opening and to avoid the door body from blocking the containing cavity.

[0005] However, after the door body is opened to the door opening angle required by the user, when the external force applied on the door body for rotating the door body relative to the cabinet is removed, the door body is prone to continue to rotate a larger angle under the influence of inertia, self-weight or manufacturing deviation, etc., resulting in an increase in deviation of the final door opening angle of the door body from the door opening angle required by the user.

[0006] SUMMARY

[0007] The present application provides a refrigerator, which can solve the technical problem that the door body of a related refrigerator is prone to continue to rotate a larger angle after being opened under the action of an external force.

[0008] In a first aspect, the present application provides a refrigerator, comprising a cabinet, a door body and a hinge, wherein the door body is pivotally connected to the cabinet through the hinge.

[0009] The hinge comprises:

[0010] A fixed seat connected to the cabinet;

[0011] A hinge arm connected to the door body;

[0012] A transmission assembly comprising four linkages, two of which are pivotally connected to the fixed seat, and the other two are pivotally connected to the hinge arm, the four linkages are pivotally connected to each other, and the four linkages, the fixed seat and the hinge arm form two quadrilaterals;

[0013] An elastic sheet connected to one of the linkages in the transmission assembly, which is in mutual pressing cooperation with another linkage in the transmission assembly at least in part of the angle range during the rotation of the door body, so as to generate elastic deformation and realize damping effect on the movement of the hinge.

[0014] The refrigerator of the present application can buffer at least part of the opening force or closing force from the elastic sheet when the door body is opened to a certain door opening angle and the opening external force or closing external force applied on the door body is removed, thereby reducing the angle of the door body under the influence of inertia, self-weight or manufacturing deviation, etc. to continue to rotate. BRIEF DESCRIPTION OF DRAWINGS

[0015] FIG. 1 is a first perspective view of a refrigerator according to an exemplary embodiment, in which the door body is at a maximum door opening angle;

[0016] FIG. 2 is a first perspective view of a refrigerator according to an exemplary embodiment, in which the door body is in a closed state;

[0017] FIG. 3 is a second perspective view of a refrigerator according to an exemplary embodiment, in which the door body is in a closed state;

[0018] Fig. 4 is a second perspective view of the refrigerator according to an exemplary embodiment, in which the door is at a maximum opening angle;

[0019] Fig. 5 is a schematic view of a transmission assembly of the refrigerator according to an exemplary embodiment;

[0020] Fig. 6 is a schematic view of another transmission assembly of the refrigerator according to another exemplary embodiment;

[0021] Fig. 7 is a schematic view of the refrigerator according to the first embodiment of the present application, in which the door is in a closed state;

[0022] Fig. 8 is a schematic view of the refrigerator according to the first embodiment of the present application, in which the door is at an opening angle of 30°;

[0023] Fig. 9 is a schematic view of the refrigerator according to the first embodiment of the present application, in which the door is at an opening angle of 60°;

[0024] Fig. 10 is a schematic view of the refrigerator according to the first embodiment of the present application, in which the door is at an opening angle of 90°;

[0025] Fig. 11 is a schematic view of the refrigerator according to the first embodiment of the present application, in which the door is opened to a maximum opening angle;

[0026] Fig. 12 is a schematic view of a second link of the refrigerator according to the second embodiment of the present application;

[0027] Fig. 13 is a schematic view of the refrigerator according to the second embodiment of the present application, in which the door is in a closed state;

[0028] Fig. 14 is a schematic view of the refrigerator according to the second embodiment of the present application, in which the door is at an opening angle of 30°;

[0029] Fig. 15 is a schematic view of the refrigerator according to the second embodiment of the present application, in which the door is at an opening angle of 60°;

[0030] Fig. 16 is a schematic view of the refrigerator according to the second embodiment of the present application, in which the door is at an opening angle of 90°;

[0031] Fig. 17 is a schematic view of the refrigerator according to the second embodiment of the present application, in which the door is opened to a maximum opening angle;

[0032] Fig. 18 is a schematic view of a second link of the refrigerator according to the third embodiment of the present application;

[0033] Fig. 19 is a schematic view of a second link of the refrigerator according to the third embodiment of the present application;

[0034] Fig. 20 is a schematic view of the refrigerator according to the third embodiment of the present application, in which the door is in a closed state;

[0035] Fig. 21 is a structural schematic view of the refrigerator of Embodiment Three of the present application when the door is opened to an angle of 30°;

[0036] Fig. 22 is a structural schematic view of the refrigerator of Embodiment Three of the present application when the door is opened to an angle of 60°;

[0037] Fig. 23 is a structural schematic view of the refrigerator of Embodiment Three of the present application when the door is opened to an angle of 90°;

[0038] Fig. 24 is a structural schematic view of the refrigerator of Embodiment Three of the present application when the door is opened to a maximum angle;

[0039] Fig. 25 is a structural schematic view of a spring in the refrigerator of the present application;

[0040] Fig. 26 is a structural schematic view of a spring in the refrigerator of the present application;

[0041] Fig. 27 is a structural schematic view of a spring in the refrigerator of the present application;

[0042] Fig. 28 is a structural schematic view of the refrigerator of Embodiment Four of the present application when the door is in a closed state;

[0043] Fig. 29 is a structural schematic view of the refrigerator of Embodiment Four of the present application when the door is opened to an angle of 30°;

[0044] Fig. 30 is a structural schematic view of the refrigerator of Embodiment Four of the present application when the door is opened to an angle of 60°;

[0045] Fig. 31 is a structural schematic view of the refrigerator of Embodiment Four of the present application when the door is opened to an angle of 90°;

[0046] Fig. 32 is a structural schematic view of the refrigerator of Embodiment Four of the present application when the door is opened to a maximum angle;

[0047] Fig. 33 is a structural schematic view of the refrigerator of Embodiment Five of the present application when the door is in a closed state;

[0048] Fig. 34 is a structural schematic view of the refrigerator of Embodiment Five of the present application when the door is opened to an angle of 30°;

[0049] Fig. 35 is a structural schematic view of the refrigerator of Embodiment Five of the present application when the door is opened to an angle of 60°;

[0050] Fig. 36 is a structural schematic view of the refrigerator of Embodiment Five of the present application when the door is opened to an angle of 90°;

[0051] Fig. 37 is a structural schematic view of the refrigerator of Embodiment Five of the present application when the door is opened to a maximum angle;

[0052] Fig. 38 is a structural schematic view of a spring sheet in a refrigerator according to an embodiment of the present application;

[0053] Fig. 39 is a structural schematic view of a spring sheet in a refrigerator according to an embodiment of the present application;

[0054] Fig. 40 is a structural schematic view of a refrigerator according to an embodiment of the present application when a door body is in a closed state;

[0055] Fig. 41 is a structural schematic view of a refrigerator according to an embodiment of the present application when an opening angle of the door body is 30°;

[0056] Fig. 42 is a structural schematic view of a refrigerator according to an embodiment of the present application when an opening angle of the door body is 60°;

[0057] Fig. 43 is a structural schematic view of a refrigerator according to an embodiment of the present application when an opening angle of the door body is 90°;

[0058] Fig. 44 is a structural schematic view of a refrigerator according to an embodiment of the present application when the door body is opened to a maximum opening angle;

[0059] Fig. 45 is a structural schematic view of a second link, a third link, and a spring sheet in a refrigerator according to an embodiment of the present application;

[0060] Fig. 46 is a structural schematic view of a second link, a third link, and a spring sheet in a refrigerator according to an embodiment of the present application;

[0061] Fig. 47 is an exploded structural schematic view of a second link, a third link, and a spring sheet in Fig. 46. Embodiments of the present application

[0062] In order to make the objects, embodiments and advantages of the present application clearer, the following will describe the exemplary embodiments of the present application clearly and completely with reference to the accompanying drawings. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, but not all embodiments of the present application.

[0063] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described embodiments, and is not intended to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and general meanings.

[0064] In addition, the terms "comprise" and "have" and any variations thereof are intended to cover but not exclusive inclusion, for example, a product or equipment comprising a series of components does not have to be limited to the clearly listed components, but can include other components that are not clearly listed or inherent to these products or equipment.

[0065] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0066] The terms "first", "second", "third", and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0067] In the description of the present application, it needs to be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0069] Referring to FIG. 1, the refrigerator of the present application includes a cabinet 1. The cabinet 1 is formed with a receiving cavity for receiving food or other articles. The opening of the receiving cavity faces the side of the cabinet door of the cabinet 1.

[0070] In some embodiments, the refrigerator further includes a door body 2. The door body 2 is arranged on the side of the cabinet door of the cabinet 1. The door body 2 can be arranged on the left side of the cabinet door of the cabinet, or on the right side of the cabinet door, or on both sides of the cabinet door.

[0071] In some embodiments, the refrigerator further includes a hinge 3.

[0072] Referring to FIGS. 2 and 3, the refrigerator according to the embodiments of the present application can be embedded in the cabinet 4 when installed, and the outer side of the door body 2 can be flush with the end surface 41 of the cabinet 4 after installation, and a side edge 42 is formed between the side of the cabinet 4 facing the cabinet 1 and the end surface 41 of the cabinet 4.

[0073] Referring to FIG. 4, the hinge 3 includes a fixed seat 31, a hinge arm 32, and a transmission assembly 33. The fixed seat 31 is connected to the cabinet 1. The hinge arm 32 is connected to the door body 2. The transmission assembly 33 is connected between the fixed seat 31 and the hinge arm 32.

[0074] In some possible implementations, the transmission assembly 33 can include four link members, two of which are pivotally connected to the fixed seat 31, and the other two of which are pivotally connected to the hinge arm 32. One of the link members connected to the hinge arm 32 is pivotally connected to one of the link members on the fixed seat 31, and the other link member connected to the hinge arm 32 is pivotally connected to both of the link members on the fixed seat 31. For example, as shown in FIG. 5, one of the link members (e.g., a third link 333) connected to the hinge arm 32 is pivotally connected to one of the link members (e.g., a first link 331) on the fixed seat 31, and the other link member (e.g., a fourth link 334) connected to the hinge arm 32 is pivotally connected to both of the link members (e.g., the first link 331 and a second link 332) on the fixed seat 31. For another example, as shown in FIG. 6, one of the link members (e.g., the third link 333) connected to the hinge arm 32 is pivotally connected to both of the link members (e.g., the first link 331 and the second link 332) on the fixed seat 31, and the other link member (e.g., the fourth link 334) connected to the hinge arm 32 is pivotally connected to one of the link members (e.g., the second link 332) on the fixed seat 31.

[0075] In some possible implementations, referring to FIG. 5, the transmission assembly 33 can include four link members. Two of the four link members are pivotally connected to the fixed seat 31. The other two of the four link members are pivotally connected to the hinge arm 32. The four link members are pivotally connected to each other. The four link members, the fixed seat 31, and the hinge arm 32 enclose two independent quadrilaterals.

[0076] Referring to FIG. 5, in some embodiments, the transmission assembly 33 can include a first link 331, a second link 332, a third link 333, and a fourth link 334.

[0077] The first link 331 has a first end, and the first end of the first link 331 is pivotally connected to the fixed seat 31.

[0078] The second link 332 has a first end, and the first end of the second link 332 is farther away from the front wall 11 of the cabinet 1 than the first end of the first link 331. In other words, the distance between the first end of the second link 332 and the front wall 11 of the cabinet 1 is greater than the distance between the first end of the first link 331 and the front wall 11. The front wall 11 of the cabinet 1 refers to the side of the cabinet 1 facing the door body 2. The first end of the second link 332 is pivotally connected with the fixed seat 31.

[0079] The third link 333 has a first end, and the first end of the third link 333 is pivotally connected with the hinge arm 32.

[0080] The fourth link 334 has a first end, and the first end of the fourth link 334 is closer to the side wall 12 of the cabinet 1 near the fixed seat 31 than the first end of the third link 333. In other words, the distance between the first end of the third link 333 and the side wall 12 of the cabinet 1 near the fixed seat 31 is less than the distance between the first end of the fourth link 334 and the side wall 12. The side wall 12 of the cabinet 1 refers to the two sides of the cabinet 1 along the width direction X. The first end of the fourth link 334 is pivotally connected with the hinge arm 32.

[0081] The first link 331 has a second end, and the second end of the first link 331 is located at one end of the first link 331 in the extension direction of the first link 331.

[0082] The fourth link 334 has a second end, and the second end of the fourth link 334 is located at one end of the fourth link 334 in the extension direction of the fourth link 334. The second end of the fourth link 334 is pivotally connected with the second end of the first link 331.

[0083] The third link 333 has a second end, and the second end of the third link 333 is located at one end of the third link 333 in the extension direction of the third link 333. The second end of the third link 333 is pivotally connected with the first link 331, and the projection of the second end of the third link 333 on the first link 331 is located between the first end of the first link 331 and the second end of the first link 331.

[0084] The second link 332 has a second end, and the second end of the second link 332 is located at one end of the second link 332 in the extension direction of the second link 332. The second end of the second link 332 is pivotally connected with the third link 333, and the projection of the second end of the second link 332 on the third link 333 is located between the first end of the third link 333 and the second end of the third link 333.

[0085] The first ends of the first link 331 and the second link 332 are both pivotally connected to the fixing base 31. The first link 331 is closer to the front wall 11 of the box 1 than the second link 332. The first ends of the third link 333 and the fourth link 334 are both pivotally connected to the hinge arm 32. The third link 333 is closer to the side wall 12 of the box 1 near the fixing base 31 than the fourth link 334.

[0086] The second ends of the third and fourth links 333, 334 are also pivotally connected to the first link 331. The first link 331, the third link 333, the fourth link 334, and the hinge arm 32 form a quadrilateral. The second end of the second link 332, facing away from the fixing base 31, is pivotally connected to the third link 333. The fixing base 31, the first link 331, the second link 332, and the third link 333 form a quadrilateral.

[0087] The third link 333 can rotate relative to the first link 331 about the second pivot axis 302. The hinge arm 32 can rotate relative to the third link 333 about the third pivot axis 303. The third link 333 can rotate relative to the second link 332 about the first pivot axis 301. The second link 332 can rotate relative to the fixing base 31 about the fourth pivot axis 304. The first link 331 can rotate relative to the fixing base 31 about the fifth pivot axis 305. The fourth link 334 can rotate relative to the first link 331 about the sixth pivot axis 306. The hinge arm 32 can rotate relative to the fourth link 334 about the seventh pivot axis 307.

[0088] That is, the third link 333 can rotate relative to the first link 331 about the axis of the second pivot axis 302. The hinge arm 32 can rotate relative to the third link 333 about the axis of the third pivot axis 303. The third link 333 can rotate relative to the second link 332 about the axis center of the first pivot axis 301. The second link 332 can rotate relative to the fixing base 31 about the axis of the fourth pivot axis 304. The first link 331 can rotate relative to the fixing base 31 about the axis of the fifth pivot axis 305. The fourth link 334 can rotate relative to the first link 331 about the axis of the sixth pivot axis 306. The hinge arm 32 can rotate relative to the fourth link 334 about the axis of the seventh pivot axis 307.

[0089] The first link 331, the third link 333, the fourth link 334 and the hinge arm 32 form a quadrilateral, that is, the axis of the second pivot axis 302, the axis of the third pivot axis 303, the axis of the sixth pivot axis 306 and the axis of the seventh pivot axis 307 are connected to each other to form a quadrilateral.

[0090] The fixing seat 31, the first connecting rod 331, the second connecting rod 332 and the third connecting rod 333 form a quadrilateral, that is, the axis of the second pivot axis 302, the axis of the first pivot axis 301, the axis of the fourth pivot axis 304 and the axis of the fifth pivot axis 305 are connected to each other to form a quadrilateral.

[0091] 6 , in some embodiments, the transmission assembly 33 may include a first link 331 , a second link 332 , a third link 333 , and a fourth link 334 .

[0092] The first connecting rod 331 has a first end, and the first end of the first connecting rod 331 is pivotally connected to the fixing base 31 .

[0093] The second connecting rod 332 has a first end. The first end of the second connecting rod 332 is farther away from the front wall 11 of the box body 1 than the first end of the first connecting rod 331. The front wall 11 of the box body 1 refers to the side of the box body 1 facing the door body 2. The first end of the second connecting rod 332 is pivotally connected to the fixing base 31.

[0094] The third link 333 has a first end, and the first end of the third link 333 is pivotally connected to the hinge arm 32 .

[0095] The fourth connecting rod 334 has a first end. The first end of the fourth connecting rod 334 is farther away from the side wall 12 of the box 1 near the fixing base 31 than the first end of the third connecting rod 333. The side wall 12 of the box 1 refers to the two sides of the box 1 along the width direction X. The first end of the fourth connecting rod 334 is pivotally connected to the hinge arm 32.

[0096] The first connecting rod 331 has a second end. The second end of the first connecting rod 331 and the first end of the first connecting rod 331 are respectively located at two ends of an extending direction of the first connecting rod 331 .

[0097] The fourth link 334 has a second end, and the second end and the first end of the fourth link 334 are respectively located at two ends of the extending direction of the fourth link 334. The second end of the fourth link 334 is pivotally connected to the second end of the first link 331.

[0098] The second link 332 has a second end, and the second end of the second link 332 and the first end of the second link 332 are respectively located at two ends of the extension direction of the second link 332. The second end of the second link 332 is pivotally connected to the fourth link 334, and the projection of the second end of the second link 332 on the fourth link 334 is located between the first end of the fourth link 334 and the second end of the fourth link 334.

[0099] The third link 333 has a second end, and the second end of the third link 333 and the first end of the third link 333 are respectively located at two ends of the extension direction of the third link 333. The second end of the third link 333 is pivotally connected to the second link 332, and the projection of the second end of the third link 333 on the second link 332 is located between the first end of the second link 332 and the second end of the second link 332.

[0100] The first ends of the first link 331 and the second link 332 are both pivotally connected to the fixing base 31. The first link 331 is closer to the front wall 11 of the box 1 than the second link 332. The first ends of the third link 333 and the fourth link 334 are both pivotally connected to the hinge arm 32. The third link 333 is closer to the side wall 12 of the box 1 near the fixing base 31 than the fourth link 334.

[0101] The second ends of the first link 331 and the second link 332 are pivotally connected to the fourth link 334. The first link 331, the second link 332, the fixing base 31, and the fourth link 334 form a quadrilateral. The second end of the third link 333 is pivotally connected to the second link 332. The hinge arm 32, the second link 332, the third link 333, and the fourth link 334 form a quadrilateral.

[0102] The second link 332 can rotate relative to the fourth link 334 about the axis of the second pivot axis 302. The hinge arm 32 can rotate relative to the third link 333 about the axis of the third pivot axis 303. The third link 333 can rotate relative to the second link 332 about the axis of the first pivot axis 301. The second link 332 can rotate relative to the fixing base 31 about the axis of the fourth pivot axis 304. The first link 331 can rotate relative to the fixing base 31 about the axis of the fifth pivot axis 305. The fourth link 334 can rotate relative to the first link 331 about the axis of the sixth pivot axis 306. The hinge arm 32 can rotate relative to the fourth link 334 about the axis of the seventh pivot axis 307.

[0103] The first connecting rod 331, the second connecting rod 332, the fixing seat 31 and the fourth connecting rod 334 form a quadrilateral, that is, the axis of the second pivot axis 302, the axis of the fourth pivot axis 304, the axis of the fifth pivot axis 305 and the axis of the sixth pivot axis 306 are connected to each other to form a quadrilateral.

[0104] The hinge arm 32, the second link 332, the third link 333 and the fourth link 334 form a quadrilateral, that is, the axis of the first pivot axis 301, the axis of the second pivot axis 302, the axis of the third pivot axis 303 and the axis of the seventh pivot axis 307 are connected to each other to form a quadrilateral.

[0105] Referring to Figure 5 or Figure 6, when the door body 2 is opening, the hinge 3 changes its position under the restraint of the two quadrilaterals formed by itself, driving the door body 2 to open along the set trajectory to increase the opening angle of the door body 2 and reduce the possibility of interference between the door body 2 and the cabinet 4.

[0106] The following embodiments describe the structure of the refrigerator of some embodiments of the present application by taking the hinge shown in FIG5 as an example.

[0107] In some embodiments, referring to Figures 7-11, when the door body 2 is opening, the hinge 3 changes its position under the restraint of the two quadrilaterals mentioned above, causing the hinge arm 32 to move outward along the depth direction Y of the refrigerator and outward along the width direction X of the refrigerator, thereby driving the door body 2 to move outward along the depth direction Y of the refrigerator and outward along the width direction X of the refrigerator.

[0108] It should be noted that the term "outward along the depth direction Y of the refrigerator" refers to the direction from the cabinet 1 to the fixing base 31 along the depth direction Y of the refrigerator, such as the positive direction of the direction Y shown in FIG5 . The term "outward along the width direction X of the refrigerator" refers to the direction from the cabinet 1 to the cabinet 4 along the width direction X of the refrigerator, such as the positive direction of the direction X shown in FIG5 .

[0109] This not only increases the maximum opening angle of the door body 2, for example, makes the maximum opening angle of the door body 2 greater than 90°, reducing the possibility of the door body 2 blocking the accommodating cavity; it also enables the second connecting rod 332 and the third connecting rod 333 to form an avoidance area. After the door body 2 opens at an angle greater than 90°, the avoidance area can avoid the edge 42 of the cabinet 4, reducing the possibility of the door body 2 interfering with the cabinet 4 during the opening process.

[0110] 7 to 11 , the hinge 3 may include a spring 34. The spring 34 is elastic and deforms elastically and has elastic force under the action of an external force.

[0111] In some embodiments, the spring 34 may be a leaf spring, which has a simple structure, reliable operation, low cost, and easy maintenance.

[0112] In some embodiments, the elastic piece 34 is concave inwardly away from the second connecting rod 332 to form an arc segment. The arc segment extends from the first end to the second end of the elastic piece 34.

[0113] The spring piece 34 is disposed on the third connecting rod 333 . One side of the spring piece 34 faces the second connecting rod 332 , and the other side faces the fourth connecting rod 334 .

[0114] In some embodiments, the elastic piece 34 may have a first end 341. The first end 341 of the elastic piece 34 is located at one end of the extension direction of the elastic piece 34.

[0115] In some embodiments, the first end 341 of the elastic sheet 34 may be wound around the second pivot shaft 302 to reduce the difficulty of assembling the first end 341 of the elastic sheet 34 and the second pivot shaft 302 .

[0116] In some embodiments, the elastic piece 34 may have a second end 342. The second end 342 of the elastic piece 34 and the first end 341 of the elastic piece 34 are respectively located at two ends of the extension direction of the elastic piece 34.

[0117] In some possible implementations of some embodiments of the present application, the second end 342 of the elastic sheet 34 may be arranged around the third pivot shaft 303 to reduce the difficulty of assembling the second end 342 of the elastic sheet 34 and the third pivot shaft 303 .

[0118] In some embodiments, the circumferential side wall 12 of the end of the second connecting rod 332 facing away from the fixing seat 31 may be configured with a pressing portion 335 , that is, the circumferential side wall 12 of the second end of the second connecting rod 332 may be configured with a pressing portion 335 .

[0119] During the opening or closing process of the door body 2 , the elastic piece 34 presses against the pressing portion 335 within at least a partial angular range, thereby generating elastic deformation to damp the movement of the hinge 3 .

[0120] During the process of opening or closing the door body 2, when the spring piece 34 is pressed against the pressing part 335, the spring piece 34 is squeezed by the pressing part 335 to elastically deform and exerts an elastic force F on the pressing part 335. The direction of the elastic force F is from the spring piece 34 to the pressing part 335. The elastic force F increases the pressure between the spring piece 34 and the pressing part 335, thereby increasing the friction resistance of rotation between the spring piece 34 and the pressing part 335, and then achieving a certain damping effect on the movement of the hinge 3.

[0121] When the door body 2 is opened to a certain door opening angle and the external door opening force or door closing force applied to the door body 2 is released, the damping effect from the spring piece 34 can buffer at least part of the door opening force or door closing force, thereby reducing the angle at which the door body 2 continues to rotate under the influence of inertia, deadweight or manufacturing deviation.

[0122] In some embodiments, since spring steel generally has a higher carbon content than ordinary steel, typically between 0.6% and 1.2%, and the material properties are relatively brittle, the thickness of the spring piece 34 is set to be greater than or equal to 1.5 mm, which is beneficial to enhancing the hardness and toughness of the spring piece 34 and making it less prone to fatigue fracture. In this way, the service life of the spring piece 34 can be extended.

[0123] In some embodiments, the thickness of the spring piece 34 is equal to 2.5 mm, and the door can still be opened or closed smoothly. However, the thickness of the spring piece 34 should not be too thick, which may cause difficulty in opening or closing the door when the spring piece 34 and the pressing part 335 are pressed together, making the hinge 3 inconvenient to use.

[0124] In some embodiments, the thickness of the spring piece 34 is greater than or equal to 1.5 mm and less than or equal to 2.5 mm, which can not only extend the service life of the spring piece 34 but also make the hinge 3 more labor-saving when used.

[0125] In some embodiments, if the ratio of the thickness of the spring piece 34 to the expanded length of the spring piece 34 is less than or equal to 0.03, the spring piece 34 is easy to manufacture.

[0126] In some embodiments, when the ratio of the thickness of the spring piece 34 to the expanded length of the spring piece 34 is greater than or equal to 0.01 and less than or equal to 0.03, for example, when the thickness of the spring piece 34 is 2 mm, the expanded length of the spring piece 34 is 50 mm, 100 mm or 150 mm. This not only facilitates the production and manufacturing of the spring piece 34, but also helps to extend the service life of the spring piece 34.

[0127] The material of the spring piece 34 contains manganese. If the ratio of the thickness of the spring piece 34 to the unfolded length of the spring piece 34 is too large or too small, it will be affected by its own elasticity, making it difficult to bend and form, and the dimensional deviation after forming will be large.

[0128] In some embodiments, referring to FIG. 7-FIG . 24 , the pressing portion 335 may include a curved segment 336 .

[0129] During the process of opening or closing the door body 2, when the spring piece 34 is pressed against the curved segment 336, the spring piece 34 is squeezed by the curved segment 336 to undergo elastic deformation and exert an elastic force F on the curved segment 336. The direction of the elastic force F is from the spring piece 34 to the curved segment 336. The elastic force F increases the pressure between the spring piece 34 and the curved segment 336, thereby increasing the frictional resistance to rotation between the spring piece 34 and the curved segment 336, thereby achieving a certain damping effect on the movement of the hinge 3.

[0130] In some embodiments, the curved segment 336 may be an arc shape, and the curved segment 336 may also have a certain deviation relative to the arc shape, as long as the curved segment 336 as a whole conforms to the law of rotation around the axis of the first pivot shaft 301 during the rotation of the door body 2.

[0131] In an implementation in which the curved segment 336 is in an arc shape, the axis corresponding to the curved segment 336 may be collinear with the axis of the first pivot shaft 301 .

[0132] During the rotation of the door body 2, when the spring piece 34 and the curved segment 336 press against each other, the direction of the elastic force F of the curved segment 336 exerted by the spring piece 34 is directed from the spring piece 34 to the curved segment 336 and to the first pivot axis 301. Therefore, the force arm from the rotation axis of the first pivot axis 301 to the elastic force F is small, and the elastic force F is not easy to generate a force arm for rotating the second connecting rod 332 around the first pivot axis 301. After the external force for opening or closing the door applied to the door body 2 is released, the spring piece 34 is not easy to form an assist force for closing or opening the door. The spring piece 34 only realizes a certain damping effect on the movement of the hinge 3.

[0133] It should be noted that the direction of the elastic force F pointing to the first pivot axis 301 can be the direction of the elastic force F passing through the axis of the first pivot axis 301, or the direction of the elastic force F can have a certain deviation relative to the axis of the first pivot axis 301, as long as the elastic force F is not easy to generate a force arm that causes the second connecting rod 332 to rotate around the first pivot axis 301.

[0134] In some embodiments, when the door body 2 opens from a first set angle to a second set angle (the second set angle is greater than the first set angle), the curved segment 336 presses against the spring piece 34. During this process, after the external force for opening the door body 2 is released, the spring piece 34 achieves a certain damping effect on the movement of the hinge 3.

[0135] In some embodiments, referring to Figures 7-11, the first setting angle can be 0°, and the second setting angle can be the maximum door opening angle of the refrigerator. At this time, the second setting angle is greater than 90°, so that the spring 34 can have a damping effect on the movement of the hinge 3 when the refrigerator is opened at any door angle.

[0136] In some embodiments, referring to Figures 13-17, the first setting angle can be greater than 0°, and the second setting angle can be the maximum door opening angle of the refrigerator. In this way, when the door opening angle of the refrigerator is greater than or equal to the first setting angle, the spring 34 has a damping effect on the movement of the hinge 3.

[0137] In some embodiments, referring to Figures 20-24, the first setting angle can be greater than 0°, and the second setting angle can be equal to 90°, so that when the door opening angle of the refrigerator is between the first setting angle and 90°, the spring 34 has a damping effect on the movement of the hinge 3.

[0138] 12 to 17 , the pressing portion 335 may include a first edge 337 . The first edge 337 may face away from the front wall 11 of the box body 1 .

[0139] When the door body 2 is being closed, the elastic force F of the elastic sheet 34 against the first edge 337 has a force arm to make the second end of the second link 332 rotate around the first pivot shaft 301 towards the front wall 11 of the cabinet 1, so that the elastic force F forms a door closing assist, thereby reducing the external force required to close the door body 2 and making it easier to close the door body 2.

[0140] In some embodiments, referring to FIG. 13, the elastic force F of the elastic sheet 34 against the first edge 337 has two mutually perpendicular components, one component F1 is directed along the axis of the first pivot shaft 301, and the other component F2 is directed towards the first link 331.

[0141] The component F2 directed towards the first link 331 has a force arm to make the second link 332 rotate around the first pivot shaft 301 towards the front wall of the cabinet 1, so that the component F2 can push the first edge 337 towards the first link 331, making the second end of the second link 332 rotate towards the front wall of the cabinet 1, and making the door body 2 rotate towards the front wall of the cabinet 1, forming a door closing assist, thereby reducing the external force required to close the door body 2 and making it easier to close the door body 2.

[0142] The component F1 directed along the axis of the first pivot shaft 301 does not have a force arm to make the second link 332 rotate around the first pivot shaft 301, so that the component F1 acts to increase the pressure between the elastic sheet 34 and the first edge 337, thereby increasing the rotational friction between the elastic sheet 34 and the first edge 337, and further providing a certain damping effect on the movement of the hinge 3. When the external closing force applied to the door body 2 is removed, the damping effect from the elastic sheet 34 can buffer at least part of the opening force or closing force, so that the door body 2 slowly closes, reducing the closing speed of the door body 2, reducing the possibility of the refrigerator shaking or the door body 2 being damaged due to the closing speed of the door body 2 being too fast, and also reducing the possibility of a hand being pinched due to the closing speed of the door body 2 being too fast.

[0143] In some embodiments, the distance between the first edge 337 and the axis of the first pivot shaft 301 gradually decreases from the end of the fourth pivot shaft 304 away from the end of the fourth pivot shaft 304. During the closing of the door body 2, the elastic sheet 34 first abuts against the end of the first edge 337 away from the end of the fourth pivot shaft 304, and as the door body 2 gradually closes, the elastic sheet 34 gradually abuts against the end of the first edge 337 close to the end of the fourth pivot shaft 304. Since the distance between the first edge 337 and the axis of the first pivot shaft 301 gradually decreases from the end of the fourth pivot shaft 304 away from the end of the fourth pivot shaft 304, as the door body 2 gradually closes, the compression amount of the elastic sheet 34 by the first edge 337 gradually decreases, reducing the damping effect of the elastic sheet 34 on the hinge 3 and the door closing assistance when the door body 2 is in the closed state, thereby reducing the door opening force required to open and close the door body 2, and facilitating the opening of the door body 2.

[0144] In some embodiments, referring to FIGS. 12, 13, 19 and 20, when the door opening angle of the door body 2 is within the third set angle, the first edge 337 abuts against the elastic sheet 34, providing assistance to the closing of the door body 2 by the elastic sheet 34.

[0145] In some embodiments, the third set angle can be greater than 0° and less than 30°, so that when the door body 2 is released from an external force at a smaller door opening angle of less than 30°, the elastic sheet 34 can provide assistance to the closing of the door body 2. When the door closing angle is greater than 30°, the elastic sheet 34 contacts the curved segment 336, at which time the elastic sheet 34 is in a "power storage" state with an increased stretching amount, the contact point is located on the curved segment 336, and the force direction of the elastic sheet 34 on the abutting portion 335 is directed to the center of the first pivot shaft 301, and the force effect causes the elastic sheet 34 to press the abutting portion 335. As the door closing angle decreases, the stretching amount of the elastic sheet 34 gradually increases, and the pressing force gradually increases. When the critical point of more than 30° is exceeded, the elastic sheet 34 contacts the first edge 337, and the force direction is offset, decomposed into a component force F1 directed to the center and a component force F2 perpendicular to the component force F1 and directed to the first connecting rod 331 (i.e., self-closing force). Thus, within the door closing angle range of less than 30°, the elastic sheet 34 provides assistance to the closing of the door body 2, relies on the self-closing force to achieve automatic door closing, and prevents the door body from being closed tightly.

[0146] In some embodiments, referring to FIGS. 18, 19 and 20, the first edge 337 can include a first curved surface 3371. The first curved surface 3371 is adjacent to the curved segment 336. The elastic force F of the elastic sheet 34 on the first curved surface 3371 has a force arm that causes the second end of the second connecting rod 332 to rotate about the first pivot shaft 301 towards the front wall of the cabinet 1, so that the elastic sheet 34 has a certain door closing assistance to the door body 2.

[0147] The first curved surface 3371 can protrude towards the elastic sheet 34. Compared with the implementation mode that the first curved surface 3371 is concave away from the elastic sheet 34, the first curved surface 3371 protrudes towards the elastic sheet 34, so as to facilitate the abutting fit of different positions of the elastic sheet 34 and the first curved surface 3371, improve the contact rate of each position of the elastic sheet 34 and the first curved surface 3371, reduce the possibility that the elastic sheet 34 and part of the first curved surface 3371 cannot be abutting fitted, and improve the stability when the first curved surface 3371 and the elastic sheet 34 are abutting fitted.

[0148] In some embodiments, the first curved surface 3371 can be a circular arc surface, so that the distance between the first curved surface 3371 and the axis of the first pivot shaft 301 changes smoothly from one end of the first curved surface 3371 away from the front wall 11 of the cabinet 1 to one end close to the front wall 11 of the cabinet 1, thereby reducing the change range of the damping effect of the elastic sheet 34 on the hinge 3 during the rotation of the door body 2, and making the door body 2 more smooth when opening or closing the door.

[0149] In some embodiments, the first edge 337 can include a first flat surface 3372. The first flat surface 3372 is adjacent to the first curved surface 3371. The elastic force F of the elastic sheet 34 on the first flat surface 3372 has a force arm for rotating the second end of the second connecting rod 332 around the first pivot shaft 301 towards the front wall 11 of the cabinet 1, so that the elastic sheet 34 has a certain closing door assisting force on the door body 2.

[0150] In some embodiments, referring to FIGS. 18-24, the abutting part 335 can include a second edge 338. The second edge 338 can be towards the front wall 11 of the cabinet 1.

[0151] During the opening of the door body 2, when the elastic sheet 34 is abutting fitted with the second edge 338, the elastic force F of the elastic sheet 34 on the second edge 338 has a force arm for rotating the second end of the second connecting rod 332 around the first pivot shaft 301 away from the front wall of the cabinet 1, and the elastic force F forms an opening door assisting force, thereby reducing the external force required for opening the door body 2 and making the opening process of the door body 2 more labor-saving.

[0152] In some embodiments, referring to FIG. 24, during the opening of the door body, when the second edge 338 and the elastic sheet 34 are abutting fitted, the elastic force F of the elastic sheet 34 on the second edge 338 has two forces perpendicular to each other, one of which F1 is in the direction of the axis of the first pivot shaft 301, and the other F2 is in the direction away from the front wall 11 of the cabinet 1.

[0153] The component force F2 of the force F away from the front wall 11 of the cabinet 1 has a force arm to rotate the second link 332 about the first pivot axis 301 away from the front wall of the cabinet 1, so that the component force F2 can push the second edge 338 away from the front wall of the cabinet 1 to rotate the second end of the second link 332 away from the front wall of the cabinet 1, to rotate the door body 2 away from the front wall of the cabinet 1 to form an opening door assisting force, so as to reduce the external force required in the process of opening the door body 2, and make the process of opening the door body 2 more labor-saving.

[0154] The component force F1 of the force F points to the axis of the first pivot axis 301, and does not have a force arm to rotate the second link 332 about the first pivot axis 301, so that the component force F1 increases the pressure between the spring sheet 34 and the second edge 338, so as to increase the rotating friction resistance between the spring sheet 34 and the second edge 338, and further damp the movement of the hinge 3. When the opening door external force applied to the door body 2 is removed, the damping effect of the spring sheet 34 can buffer at least part of the opening door force or the closing door force, so that the door body 2 can be slowly opened.

[0155] In some embodiments, the distance between the second edge 338 and the axis of the first pivot axis 301 gradually decreases from the end away from the fourth pivot axis 304 to the end close to the fourth pivot axis 304. In the process of opening the door body 2, the spring sheet 34 first abuts against the end of the second edge 338 away from the fourth pivot axis 304, and as the opening angle of the door body 2 gradually increases, the spring sheet 34 gradually abuts against the end of the second edge 338 close to the fourth pivot axis 304. Since the distance between the second edge 338 and the axis of the first pivot axis 301 gradually decreases from the end away from the fourth pivot axis 304 to the end close to the fourth pivot axis 304, as the opening angle of the door body 2 gradually increases, the compression amount of the second edge 338 to the spring sheet 34 gradually decreases, and the damping effect of the spring sheet 34 to the hinge 3 and the opening door assisting force also gradually decrease, so that the resistance of the door body when the spring sheet 34 abuts against the end of the second edge 338 close to the fourth pivot axis 304 is reduced.

[0156] In some embodiments, referring to FIGS. 23 and 24, when the opening angle of the door body 2 is between the fourth set angle and the fifth set angle, the second edge 338 abuts against the spring sheet 34 to provide an assisting force to the opening of the door body 2.

[0157] In some embodiments, the fourth set angle can be greater than 0°. The fifth set angle is greater than the fourth set angle. The fifth set angle is less than or equal to the maximum opening angle of the door body 2.

[0158] In some possible implementation manners of the embodiments of the present application, in some embodiments, referring to FIG. 18, FIG. 19 and FIG. 20, the second edge 338 can include a second curved surface 3381. The second curved surface 3381 is contiguous with the curved segment 336. The elastic force F of the elastic sheet 34 on the second curved surface 3381 has a force arm that makes the second end of the second connecting rod 332 rotate about the first pivot shaft 301 away from the front wall of the cabinet 1, so that the elastic sheet 34 has a certain door opening assisting force on the door body 2.

[0159] The second curved surface 3381 can be convex towards the elastic sheet 34. Compared with the implementation manner in which the second curved surface 3381 is concave away from the elastic sheet 34, the second curved surface 3381 is convex towards the elastic sheet 34, so as to facilitate the abutting fit of different positions on the elastic sheet 34 and the second curved surface 3381, improve the contact rate of each position of the elastic sheet 34 and the second curved surface 3381, reduce the possibility that the elastic sheet 34 and part of the second curved surface 3381 cannot be abuttingly fitted, and improve the stability when the elastic sheet 34 and the second curved surface 3381 are abuttingly fitted.

[0160] In some embodiments, the second curved surface 3381 can be a circular arc surface, so that the distance between the second curved surface 3381 and the axis of the first pivot shaft 301 changes relatively smoothly from one end of the second curved surface 3381 close to the fourth pivot shaft 304 to the other end away from the fourth pivot shaft 304, and the change range of the damping effect of the elastic sheet 34 on the hinge 3 during the rotation of the door body 2 is reduced, so that the door body 2 is more smooth when opening or closing the door.

[0161] In some embodiments, the second edge 338 can include a second flat surface 3382. The second flat surface 3382 is contiguous with the second curved surface 3381. The elastic force F of the elastic sheet 34 on the second flat surface 3382 has a force arm that makes the second end of the second connecting rod 332 rotate about the first pivot shaft 301 away from the front wall of the cabinet 1, so that the elastic sheet 34 has a certain door opening assisting force on the door body 2.

[0162] In some embodiments, referring to FIG. 12-FIG. 17, the abutting part 335 can include the curved segment 336 and the first edge 337. The first edge 337 is farther away from the front wall 11 of the cabinet 1 than the curved segment 336.

[0163] During the gradual opening of the door body 2 from the closed state, the elastic sheet 34 abuttingly fits the first edge 337 and the curved segment 336 in sequence.

[0164] During the gradual closing of the door body 2, the elastic sheet 34 abuttingly fits the first edge 337 and the curved segment 336 in sequence.

[0165] In the process of the elastic sheet 34 abutting against the first edge 337 and the curved segment 336, the movement of the hinge 3 can be damped to buffer part of the opening or closing force of the door body 2, and to reduce the rotation angle of the door body 2 after the external force is removed.

[0166] In addition, in the process of the elastic sheet 34 abutting against the first edge 337, the elastic sheet 34 has a force arm for rotating the second connecting rod 332 around the first pivot shaft 301 towards the front wall of the cabinet 1, thereby providing a certain assist force for the closing of the door body 2, reducing the external force required in the process of closing the door body 2, and making the process of closing the door body 2 more labor-saving.

[0167] In some embodiments, the first edge 337 can be adjacent to the curved segment 336, that is, the third set angle can be equal to the first set angle, so as to improve the continuity of the damping effect of the elastic sheet 34 on the hinge 3.

[0168] In some embodiments, in the process of opening the door body 2, as shown in FIGS. 13 and 14, in the process of opening the door body 2 from the closed state to the first set angle, the elastic sheet 34 and the first edge 337 abut against each other to provide a damping effect for the opening process of the hinge 3.

[0169] The first set angle can be greater than 0° and less than or equal to 30°.

[0170] In some embodiments, the first set angle can be greater than 0° and less than 30°.

[0171] In the process of opening the door body 2, as shown in FIGS. 14-17, in the process of opening the door body 2 from the first set angle to the second set angle, the elastic sheet 34 and the curved segment 336 abut against each other to provide a damping effect for the opening process of the hinge 3, and the second set angle can be between 90° and the maximum opening angle of the door body 2.

[0172] The second set angle is greater than the first set angle and less than or equal to the maximum opening angle of the door body 2.

[0173] In the process of closing the door body 2, as shown in FIGS. 14-17, in the process of closing the door body 2 from the second set angle to the first set angle, the elastic sheet 34 and the curved segment 336 abut against each other to provide a damping effect for the closing process of the hinge 3, and the second set angle can be between 90° and the maximum opening angle of the door body 2.

[0174] In the process of closing the door body 2, as shown in FIGS. 13 and 14, in the process of gradually closing the door body 2 from the first set angle to the closed state, the elastic sheet 34 and the first edge 337 abut against each other to provide a damping effect and a closing assist force for the closing process of the hinge 3.

[0175] In some embodiments, the first edge 337 protrudes towards the spring 34. The first edge 337 can be a circular arc surface. The curved segment 336 can be a circular arc shape. The tangent line of the first edge 337 close to one end of the curved segment 336 and the tangent line of the curved segment 336 close to one end of the first edge 337 can be collinear, so that the distance between the first edge 337 close to one end of the curved segment 336 and the axis of the first pivot shaft 301 is equal to the distance between the curved segment 336 and the axis of the first pivot shaft 301, the spring force of the spring 34 on the critical position of the first edge 337 and the curved segment 336 and the size of the spring force on the curved segment 336 are consistent, so that the spring 34 is more smooth when transitioning from cooperating with the first edge 337 to cooperating with the curved segment 336, and the door body 2 is more smooth in the process of rotating.

[0176] In some embodiments, the radius corresponding to the first edge 337 can be smaller than the radius corresponding to the curved segment 336. Since the first edge 337 and the curved segment 336 are both located on the circumferential side wall 12 of the second end of the second connecting rod 332, and the axis of the curved segment 336 and the axis of the first pivot shaft 301 are collinear, therefore, under the premise that the arc length corresponding to the first edge 337 is unchanged, compared with the implementation that the radius corresponding to the first edge 337 is equal to the radius of the curved segment 336, when the radius corresponding to the first edge 337 is smaller than the radius of the curved segment 336, the bending degree of the first edge 337 increases, the compression amount of the first edge 337 to the spring 34 will increase, thereby increasing the spring force of the spring 34 to the first edge 337, and the component force F2 (door closing assistance) of the spring force also increases, thereby increasing the assistance to the closing of the door body 2.

[0177] In some embodiments, referring to FIGS. 18-24, the abutting portion 335 can include the curved segment 336 and a second edge 338. The second edge 338 is closer to the front wall 11 of the cabinet 1 than the curved segment 336.

[0178] In the process of the door body 2 gradually opening from the closed state, the spring 34 abuts and cooperates with the curved segment 336 and the second edge 338 in turn.

[0179] In the process of the door body 2 gradually closing, the spring 34 abuts and cooperates with the second edge 338 and the curved segment 336 in turn.

[0180] In the process of the spring 34 abutting and cooperating with the curved segment 336 and the second edge 338, a certain damping effect can be achieved on the movement of the hinge 3 to buffer part of the opening force or closing force, and reduce the rotation angle of the door body 2 after the external force is removed.

[0181] In addition, when the elastic sheet 34 is in abutting contact with the second edge 338, the elastic sheet 34 has a force arm for rotating the second connecting rod 332 away from the front wall 11 of the cabinet 1 about the first pivot shaft 301, thereby providing a certain opening assistance to the door body 2, reducing the external force required in the process of opening the door body 2, and making the process of opening the door body 2 more labor-saving.

[0182] In some embodiments, the second edge 338 can be adjacent to the curved segment 336, that is, the fourth set angle can be equal to the second set angle, so as to improve the continuity of the damping effect of the elastic sheet 34 on the hinge 3.

[0183] In some embodiments, in the process of opening the door body 2, referring to FIGS. 21, 22 and 23, the door body 2 can be opened from the first set angle to the second set angle, and the elastic sheet 34 and the curved segment 336 are in abutting contact with each other to provide damping effect to the opening process of the hinge 3.

[0184] The first set angle can be greater than 0°, and the second set angle is greater than the first set angle and less than the maximum opening angle of the door body 2. For example, the second set angle can be equal to 90°.

[0185] Referring to FIGS. 23 and 24, in the process of opening the door body 2 from the second set angle to the fifth set angle, the elastic sheet 34 and the second edge 338 are in abutting contact with each other to provide damping effect and opening assistance to the opening process of the hinge 3.

[0186] The fifth set angle is greater than the second set angle and less than or equal to the maximum opening angle of the door body 2.

[0187] In some embodiments, in the process of closing the door body 2, the door body 2 is closed from the fifth set angle to the first set angle, and the elastic sheet 34 is in abutting contact with the second edge 338 and the curved segment 336 in sequence to provide damping effect to the closing process of the hinge 3.

[0188] In some embodiments, referring to FIGS. 18-24, the abutting portion 335 can include the curved segment 336, the first edge 337 and the second edge 338. The first edge 337 is farther away from the front wall 11 of the cabinet 1 than the curved segment 336. The second edge 338 is closer to the front wall 11 of the cabinet 1 than the curved segment 336.

[0189] In the process of gradually opening the door body 2 from the closed state, the elastic sheet 34 is in abutting contact with the first edge 337, the curved segment 336 and the second edge 338 in sequence.

[0190] In the process of gradually closing the door body 2, the elastic sheet 34 is in abutting contact with the second edge 338, the curved segment 336 and the first edge 337 in sequence.

[0191] In the process of the elastic sheet 34 abutting against the first edge 337, the second edge 338 and the curved section 336, the movement of the hinge 3 can be damped to buffer part of the opening and closing force of the door body 2 and reduce the rotation angle of the door body 2 after the external force is removed.

[0192] In the process of the elastic sheet 34 abutting against the first edge 337, the elastic sheet 34 has a force arm to rotate the second connecting rod 332 around the first pivot shaft 301 towards the front wall of the cabinet 1, thereby providing certain assistance to the closing of the door body 2, reducing the external force required in the process of closing the door body 2 and making the process of closing the door body 2 more labor-saving.

[0193] In the process of the elastic sheet 34 abutting against the second edge 338, the elastic sheet 34 has a force arm to rotate the second connecting rod 332 around the first pivot shaft 301 away from the front wall of the cabinet 1, thereby providing certain assistance to the opening of the door body 2, reducing the external force required in the process of opening the door body 2 and making the process of opening the door body 2 more labor-saving.

[0194] In some embodiments, referring to FIGS. 7-11, 13-17 and 25, the elastic sheet 34 can be recessed away from the abutting portion 335 to simplify the structure of the elastic sheet 34 and facilitate the processing and manufacturing of the elastic sheet 34.

[0195] In some embodiments, referring to FIGS. 20-24, 26-37, the elastic sheet 34 can include a matching protrusion 343. The matching protrusion 343 protrudes towards the abutting portion 335. The matching protrusion 343 can be formed by bending the elastic sheet 34. The matching protrusion 343 is used to abut against the abutting portion 335 during the rotation of the door body 2.

[0196] In the case where the length between the first end 341 and the second end 342 of the elastic sheet 34 is unchanged, the construction of the matching protrusion 343 on the elastic sheet 34 can increase the unfolded length of the elastic sheet 34, thereby increasing the deformation amount of the elastic sheet 34, and further increasing the elastic force of the matching protrusion 343 against the abutting portion 335, improving the damping effect, closing assistance and opening assistance of the elastic sheet 34 on the door body 2.

[0197] In some embodiments, referring to FIGS. 38-44, the elastic sheet 34 can be constructed with a matching section 347. The matching section 347 abuts against the abutting portion 335 at least in part of the angular range during the opening of the door body 2 to produce elastic deformation and exert an elastic force F on the abutting portion 335. The direction of the elastic force F is from the matching section 347 to the abutting portion 335. The elastic force F increases the pressure between the matching section 347 and the abutting portion 335, thereby increasing the frictional resistance between the elastic sheet 34 and the abutting portion 335, and further damping the movement of the hinge 3.

[0198] When the door body 2 is opened to a certain opening angle and the opening or closing external force applied to the door body 2 is removed, the damping effect of the elastic sheet 34 can buffer at least part of the opening or closing force, thereby reducing the angle of the door body 2 continuing to rotate under the influence of inertia, weight or manufacturing deviation, etc.

[0199] In some embodiments, the fitting section 347 can be recessed away from the abutting portion 335.

[0200] In some embodiments, when the fitting section 347 and the abutting portion 335 abut each other, the fitting section 347 and the abutting portion 335 can at least partially abut each other, i.e., the fitting section 347 and the abutting portion 335 are in surface contact, so as to increase the contact area between the fitting section 347 and the abutting portion 335, thereby increasing the frictional resistance between the fitting section 347 and the abutting portion 335 and improving the damping effect of the elastic sheet 34 on the movement of the hinge 3.

[0201] In some embodiments, referring to FIGS. 27-44, the elastic sheet 34 can be configured with an auxiliary protrusion 344. The auxiliary protrusion 344 protrudes away from the fourth connecting rod 334.

[0202] The auxiliary protrusion 344 can be formed by bending a part of the elastic sheet 34 towards the second connecting rod 332, so as to configure the auxiliary protrusion 344 on the elastic sheet 34.

[0203] In some embodiments, the auxiliary protrusion 344 can be located between the fitting section 347 or the fitting protrusion 343 and the first end 341 of the elastic sheet 34.

[0204] In some embodiments, the auxiliary protrusion 344 can be located between the fitting section 347 or the fitting protrusion 343 and the second end 342 of the elastic sheet 34.

[0205] In some embodiments, the auxiliary protrusion 344 can be located between the fitting section 347 or the fitting protrusion 343 and the second end 342 of the elastic sheet 34.

[0206] In some embodiments, referring to FIGS. 33-37 and 40-44, the auxiliary protrusion 344 can be located between the fitting section 347 or the fitting protrusion 343 and the first end 341 of the elastic sheet 34, and the second connecting rod 332 can be configured with a limiting portion 339 on the side facing the first connecting rod 331, and the auxiliary protrusion 344 is configured to limit the abutment with the limiting portion 339 when the door body 2 is opened to the maximum opening angle.

[0207] In the quadrilateral formed by the fixed seat 31, the first connecting rod 331, the second connecting rod 332, and the third connecting rod 333, as the opening angle of the door body 2 gradually increases, the included angle a between the second connecting rod 332 and the third connecting rod 333 gradually decreases, where the included angle a between the second connecting rod 332 and the third connecting rod 333 is the included angle formed by the axis of the second pivot shaft 302, the axis of the first pivot shaft 301, and the axis of the fourth pivot shaft 304 in sequence.

[0208] After the door body 2 is opened at a certain initial speed under the action of an external force, and the external force is removed, the door body 2 will gradually increase the opening angle under the action of inertia. Before the door body 2 is opened to the maximum opening angle, the auxiliary protrusion 344 and the limiting portion 339 have a spacing and do not contact. As the opening angle of the door body 2 gradually increases, the spacing between the auxiliary protrusion 344 and the limiting portion 339 gradually decreases. Until the door body 2 is opened to the maximum opening angle, the auxiliary protrusion 344 abuts against the limiting portion 339.

[0209] When the door body 2 is opened to the maximum opening angle and still has a tendency to open, the limiting portion 339 will press the auxiliary protrusion 344 toward the fourth connecting rod 334 and cause the auxiliary protrusion 344 to elastically deform. Since the auxiliary protrusion 344 has elasticity, after the auxiliary protrusion 344 elastically deforms, the auxiliary protrusion 344 will exert an elastic force on the limiting portion 339, where the elastic force is directed from the auxiliary protrusion 344 to the limiting portion 339. The elastic force can offset at least part of the pressure from the second connecting rod 332 on the auxiliary protrusion 344, that is, buffer at least part of the opening force, thereby reducing the possibility that the included angle a between the second connecting rod 332 and the third connecting rod 333 continues to decrease, reducing the possibility that the opening angle of the door body 2 is greater than the maximum opening angle, and also reducing the pulling between the door body 2 and the hinge arm 32, and between the cabinet 1 and the fixed seat 31 due to the opening angle of the door body 2 being too large.

[0210] In some embodiments, with reference to FIGS. 33-37, the limiting portion 339 can be a plane or have a certain undulation relative to the plane, as long as the limiting edge can abut against the auxiliary protrusion 344 when the opening angle of the door body 2 is the set opening angle.

[0211] In some embodiments, with reference to FIGS. 40-44, the limiting portion 339 can be recessed in a direction away from the first connecting rod 331.

[0212] Before the door body 2 is opened to the maximum opening angle, the auxiliary protrusion 344 and the limiting portion 339 are spaced apart and do not contact. As the opening angle of the door body 2 gradually increases, the spacing between the auxiliary protrusion 344 and the limiting portion 339 gradually decreases. Until the door body 2 is opened to the maximum opening angle, at least part of the auxiliary protrusion 344 moves into the limiting portion 339 and abuts against the limiting portion 339.

[0213] In the case that the door opening force of the door body 2 is unchanged, the auxiliary protrusion 344 and the limiting portion 339 abut and cooperate, which can increase the contact area of the auxiliary protrusion 344 and the limiting portion 339, thereby dispersing the pressure applied by the second connecting rod 332 on the auxiliary protrusion 344, increasing the pressure required for the auxiliary protrusion 344 to deform, that is, increasing the door opening force required for the auxiliary protrusion 344 to deform, thereby reducing the possibility of the included angle α between the second connecting rod 332 and the third connecting rod 333 continuing to decrease, and further reducing the possibility of the door opening angle of the door body 2 being greater than the maximum door opening angle.

[0214] Referring to FIGS. 45, 46, and 47, in some embodiments, the third connecting rod 333 can include a first portion 3331 and a second portion 3332. The first portion 3331 and the second portion 3332 are spaced apart along the height direction Z of the refrigerator. The first portion 3331 and the second portion 3332 are both pivotable about the second pivot shaft 302 with respect to the first connecting rod 331. The first portion 3331 and the second portion 3332 are both pivotable about the third pivot shaft 303 with respect to the hinge arm 32. In this way, the connection strength between the third connecting rod 333 and the first connecting rod 331, and between the third connecting rod 333 and the hinge arm 32 is increased.

[0215] The end of the second connecting rod 332 away from the fixed seat 31 can extend between the first portion 3331 and the second portion 3332. The end of the second connecting rod 332 away from the fixed seat 31 is pivotably connected to both the first portion 3331 and the second portion 3332. That is, the first portion 3331 and the second portion 3332 are both pivotable about the first pivot shaft 301 with respect to the second connecting rod 332.

[0216] The end of the second connecting rod 332 away from the fixed seat 31 can extend between the first portion 3331 and the second portion 3332, making the structure of the hinge 3 more compact, and after the second connecting rod 332 and the third connecting rod 333 are connected, the length of the hinge 3 in the height direction Z of the refrigerator is not additionally increased, thereby reducing the occupied space of the hinge 3 in the height direction Z of the refrigerator.

[0217] The spring sheet 34 can be disposed between the first portion 3331 and the second portion 3332, making the structure of the hinge 3 more compact, and after the spring sheet 34 is connected to the third connecting rod 333, the length of the hinge 3 in the height direction Z of the refrigerator is not additionally increased, thereby reducing the occupied space of the hinge 3 in the height direction Z of the refrigerator.

[0218] In some embodiments, the spring sheet 34 can be configured with a positioning portion. The positioning portion can include a first protrusion 345. The first protrusion 345 can be configured at the end of the spring sheet 34 facing the first portion 3331. The first protrusion 345 can be fixedly connected to the first portion 3331.

[0219] In some embodiments, referring to FIG. 47, the first portion 3331 can be provided with a first connecting hole 3333. The first protruding portion 345 is inserted into the first connecting hole 3333, thereby improving the assembly strength of the elastic sheet 34 and the first portion 3331.

[0220] In some embodiments, the positioning portion can include a second protruding portion 346. The second protruding portion 346 can be configured at one end of the elastic sheet 34 toward the second portion 3332. The second protruding portion 346 can be fixedly connected to the second portion 3332.

[0221] In some embodiments, referring to FIGS. 46 and 47, the second portion 3332 can be provided with a second connecting hole 3334. The second protruding portion 346 is inserted into the second connecting hole 3334, thereby improving the assembly strength of the elastic sheet 34 and the second portion 3332.

[0222] In some embodiments, referring to FIGS. 46 and 47, the first protruding portion 345 and the second protruding portion 346 can be disposed between the first pivot shaft 301 and the third pivot shaft 303. The portion of the elastic sheet 34 between the one of the first protruding portion 345 and the second protruding portion 346 close to the first pivot shaft 301 and the first end 341 of the elastic sheet 34 and the pressing portion 335 are in pressing contact with each other, thereby elastically deforming. The portion of the elastic sheet 34 between the one of the first protruding portion 345 and the second protruding portion 346 close to the first pivot shaft 301 and the second end 342 of the elastic sheet 34 is fixed in position at both ends of the extension direction and is not in direct pressing contact with the pressing portion 335, and thus is not easily elastically deformed.

[0223] The length of the portion of the elastic sheet 34 between the one of the first protruding portion 345 and the second protruding portion 346 close to the first pivot shaft 301 and the first end 341 of the elastic sheet 34 is reduced compared to the length of the entire elastic sheet 34, and thus the elasticity of this portion of the elastic sheet 34 is reduced compared to the entire elastic sheet 34, and the rigidity is increased.

[0224] In some embodiments, the first protruding portion 345 and the second protruding portion 346 can be disposed between the first pivot shaft 301 and the second pivot shaft 302. The portion of the elastic sheet 34 between the one of the first protruding portion 345 and the second protruding portion 346 close to the first pivot shaft 301 and the second end 342 of the elastic sheet 34 and the pressing portion 335 are in pressing contact with each other, thereby elastically deforming. The portion of the elastic sheet 34 between the one of the first protruding portion 345 and the second protruding portion 346 close to the first pivot shaft 301 and the first end 341 of the elastic sheet 34 is fixed in position at both ends of the extension direction and is not in direct pressing contact with the pressing portion 335, and thus is not easily elastically deformed.

[0225] The length of the portion of the elastic sheet 34 between one of the first and second protruding portions 345 and 346 close to the first pivot shaft 301 and the second end 342 of the elastic sheet 34 is reduced compared to the length of the entire elastic sheet 34, and thus the elasticity of the portion of the elastic sheet 34 is reduced and the rigidity is increased compared to the entire elastic sheet 34.

[0226] In some embodiments, one of the first and second protruding portions 345 and 346 is arranged between the first pivot shaft 301 and the third pivot shaft 303. The other one of the first and second protruding portions 345 and 346 is arranged between the first pivot shaft 301 and the second pivot shaft 302. The portion of the elastic sheet 34 between the first and second protruding portions 345 and 346 and the abutting portion 335 abut against each other to generate elastic deformation.

[0227] The portion of the elastic sheet 34 between the first and second protruding portions 345 and 346 is easily pressed by the abutting portion 335 and elastically deformed, and thus the elasticity of the portion of the elastic sheet 34 is reduced and the rigidity is increased compared to the entire elastic sheet 34.

[0228] In the above implementation, the rigidity of the portion of the elastic sheet 34 for cooperating with the abutting portion 335 is increased, the resistance during the opening of the door body 2 is increased, the damping effect of the elastic sheet 34 on the movement of the hinge 3 is improved, and thus the rotation speed of the door body 2 relative to the cabinet 1 after the external force for opening the door is removed can be reduced, and thus the rotation angle of the door body can be reduced.

[0229] In addition, the rigidity of the portion of the elastic sheet 34 for cooperating with the abutting portion 335 is increased, and when the door body 2 is opened to the maximum opening angle, the resistance from the elastic sheet 34 can prevent the door body 2 from being continuously opened, and the possibility of the opening angle of the door body 2 being greater than the maximum opening angle is reduced, and thus the pulling between the door body 2 and the hinge arm 32 and between the cabinet 1 and the fixed seat 31 due to the opening angle of the door body 2 being too large is reduced.

[0230] In some embodiments, the first protruding portion 345 can be riveted with the first portion 3331, and the second protruding portion 346 can be riveted with the second portion 3332, so that the elastic sheet 34, the first portion 3331 and the second portion 3332 are fixedly connected, and the structure and assembly relationship of the elastic sheet 34, the first portion 3331 and the second portion 3332 are simplified, and thus the production and installation of the hinge 3 are facilitated.

[0231] In addition, the first protruding portion 345 is riveted with the first portion 3331, and the second protruding portion 346 is riveted with the second portion 3332, so that the elastic sheet 34 and the third connecting rod 333 are riveted together, and the connection strength between the elastic sheet 34 and the third connecting rod 333 is improved.

[0232] Referring to FIG. 47, in some embodiments, the first connecting hole 3333 and the second connecting hole 3334 can be oppositely arranged. Since the first protruding part 345 corresponds to the position of the first connecting hole 3333 and the second protruding part 346 corresponds to the position of the second connecting hole 3334, when the first connecting hole 3333 and the second connecting hole 3334 are oppositely arranged, the first protruding part 345 and the second protruding part 346 are also oppositely arranged, so that the first protruding part 345 and the second protruding part 346 are located on the same side of the first pivot shaft 301 and the distance between the first protruding part 345 and the second protruding part 346 and the first pivot shaft 301 is equal. Thus, when the pressing part 335 is pressed against the elastic sheet 34, the degree of deformation of the elastic sheet 34 towards one end of the first part 3331 and towards one end of the second part 3332 is synchronized, so that the elastic sheet 34 is less likely to be twisted and deformed, thereby prolonging the service life of the elastic sheet 34 and reducing the possibility of damage to the elastic sheet 34.

[0233] It should be noted that when the first protruding part 345 and the second protruding part 346 are not directly opposite, since the fixed position of the elastic sheet 34 by the first protruding part 345 and the fixed position of the elastic sheet 34 by the second protruding part 346 are not directly opposite, the degree of deformation of the elastic sheet 34 towards one end of the first part 3331 and towards one end of the second part 3332 is not synchronized, resulting in the elastic sheet 34 being easily twisted and deformed.

[0234] Referring to FIG. 45, in some embodiments, the third connecting rod 333 can include a connecting part 3335. The connecting part 3335 is connected between the first part 3331 and the second part 3332 to connect the first part 3331 and the second part 3332.

[0235] The connecting part 3335 can be located on the side of the elastic sheet 34 away from the second connecting rod 332, so as to reduce the possibility of interference between the connecting part 3335 and the second connecting rod 332.

[0236] One end of the connecting part 3335 along the height direction Z of the refrigerator can be connected to one end of the first part 3331 close to the fourth connecting rod 334, and the other end can be connected to one end of the second part 3332 close to the fourth connecting rod 334. The position of the connecting part 3335 needs to avoid the deformation path of the elastic sheet 34, so as to reduce the possibility of the connecting part 3335 blocking the deformation path of the elastic sheet 34.

[0237] In the refrigerator shown in FIG. 6, the elastic sheet can be arranged on the second connecting rod 332, and the rod member elastically connected with the elastic sheet can be the third connecting rod 333.

[0238] The elastic sheet is pressed against the pressing part during the opening or closing process of the door body 2 within at least a partial angle range, thereby producing elastic deformation to dampen the movement of the hinge 3.

[0239] In the process of opening or closing the door body 2, when the elastic sheet is abutted by the abutting part, the elastic sheet is extruded by the abutting part to be elastically deformed and to exert an elastic force on the abutting part, the direction of the elastic force being from the elastic sheet to the abutting part, the elastic force increasing the pressure between the elastic sheet and the abutting part, thereby increasing the frictional resistance of rotation between the elastic sheet and the abutting part, and further realizing a certain damping effect on the movement of the hinge.

[0240] When the door body 2 is opened to a certain opening angle and the opening or closing external force applied on the door body 2 is removed, the damping effect from the elastic sheet can buffer at least part of the opening or closing force, thereby reducing the angle of continued rotation of the door body 2 under the influence of inertia, self-weight or manufacturing deviation, etc.

[0241] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0242] In order to facilitate explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to exhaust or limit the embodiments to the specific forms disclosed above. Various modifications and variations can be derived according to the above teachings. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. A refrigerator comprising a cabinet, a door and a hinge, the door being pivotally connected to the cabinet by the hinge; the hinge comprising: a fixed base connected to the cabinet; a hinge arm connected to the door; a transmission assembly comprising four links, two of the links being pivotally connected to the fixed base, the other two links being pivotally connected to the hinge arm, the four links being pivotally connected to each other, and the four links, the fixed base and the hinge arm forming two quadrilaterals; a spring connected to one of the links of the transmission assembly, the spring being in abutting engagement with another of the links of the transmission assembly at least in a partial angular range during the pivoting of the door to produce elastic deformation and thereby dampen the movement of the hinge. 2.The refrigerator of claim 1, wherein, one of the other two links is pivotally connected to one of the links on the fixed base, and the other of the other two links is pivotally connected to both of the links on the fixed base.

3. The refrigerator according to any one of claims 1-2, wherein, the transmission assembly comprises a first link, a second link, a third link and a fourth link, the first end of the first link and the first end of the second link are both pivotally connected to the fixed base, the distance between the first end of the second link and the front wall of the cabinet is greater than the distance between the first end of the first link and the front wall, the first end of the third link and the first end of the fourth link are both pivotally connected to the hinge arm, the distance between the first end of the third link and the side wall of the cabinet close to the fixed base is less than the distance between the first end of the fourth link and the side wall, the second end of the first link is pivotally connected to the second end of the fourth link, the second end of the third link is pivotally connected to the first link, the second end of the second link is pivotally connected to the third link, and the circumferential side wall of the second end of the second link is provided with an abutting portion; the two ends of the spring are connected to the two ends of the third link, the spring is in abutting engagement with the abutting portion at least in a partial angular range during the pivoting of the door to produce elastic deformation and thereby dampen the movement of the hinge.

4. The refrigerator of claim 3, wherein, the second end of the second link is pivotally connected to the third link by a first pivot shaft; the abutting portion comprises: a curved segment, the direction of the elastic force of the spring on the curved segment being directed towards the first pivot shaft.

5. The refrigerator of claim 4, wherein, the curved segment is in the shape of an arc, and the axis corresponding to the curved segment is collinear with the axis of the first pivot shaft. 6.The refrigerator according to claim 4 or 5, wherein, the second end of the third link is pivotally connected to the first link by a second pivot shaft, and the first end of the third link is pivotally connected to the hinge arm by a third pivot shaft; the first end of the spring is arranged around the second pivot shaft, and the second end of the spring is arranged around the third pivot shaft.

7. The refrigerator according to any one of claims 4-6, wherein, the spring and the abutting portion form an arc segment, the arc segment extending from the first end to the second end of the spring.

8. The refrigerator according to any one of claims 4-7, wherein, the abutting portion further comprises a first edge, the first edge being away from the front wall of the cabinet, and the elastic force of the spring on the first edge has a force arm that causes the second end of the second link to pivot around the first pivot shaft towards the front wall of the cabinet. 9.The refrigerator of claim 8, wherein, The distance between the first edge and the axis of the first pivot shaft gradually increases from one end close to the door body to one end away from the door body, the elastic force of the elastic sheet on the first edge has two perpendicular components, one of which is directed through the axis of the first pivot shaft, and the other is directed towards the cabinet.

10. The refrigerator according to any one of claims 8-9, wherein, The first edge comprises a first curved surface, which is a circular arc surface.

11. The refrigerator according to any one of claims 8-10, wherein, The pressing part further comprises: A second edge, which is directed towards the front wall of the cabinet, the elastic force of the elastic sheet on the second edge has a force arm that makes the second end of the second connecting rod rotate away from the front wall of the cabinet around the first pivot shaft; When the pressing part comprises a curved segment and a first edge, the first edge is farther away from the front wall of the cabinet than the curved segment; When the pressing part comprises a curved segment and a second edge, the distance between the second edge and the front wall is less than the distance between the curved segment and the front wall.

12. The refrigerator according to any one of claims 8-11, wherein, The distance between the first edge and the axis of the first pivot shaft gradually decreases from one end away from the first end of the second connecting rod to one end close to the first end of the second connecting rod. 13.The refrigerator of claim 11, wherein, The distance between the second edge and the axis of the first pivot shaft gradually decreases from one end away from the first end of the second connecting rod to one end close to the first end of the second connecting rod. 14.The refrigerator according to claim 11 or 13, wherein, The first edge is adjacent to the curved segment, and the curved segment is adjacent to the second edge. 15.The refrigerator of claim 11, wherein, The first edge comprises at least a first curved surface and a first flat surface, the first curved surface is adjacent to the curved segment, and the first flat surface is adjacent to the first curved surface. 16.The refrigerator according to claim 15, wherein, The first curved surface is two, and the first flat surface is located between the two first curved surfaces.

17. The refrigerator according to claim 15 or 16, wherein, The second edge comprises a second curved surface and a second flat surface, the second curved surface is adjacent to the curved segment, and the second flat surface is adjacent to the second curved surface. 18.The refrigerator of claim 17, wherein, The first curved surface and the second curved surface are both circular arc surfaces.

19. The refrigerator according to any one of claims 3-18, wherein, The elastic sheet is recessed away from the second connecting rod.

20. The refrigerator according to any one of claims 3-19, wherein, The elastic sheet is configured with a matching protrusion, which protrudes towards the second connecting rod, and the matching protrusion and the pressing part are in mutual pressing fit within at least a partial angle range during the rotation of the door body, thereby generating elastic deformation to dampen the movement of the hinge.

21. The refrigerator according to any one of claims 3-20, wherein, The elastic sheet is configured with a matching segment, which is recessed away from the second connecting rod, and the matching segment and the pressing part are in mutual pressing fit within at least a partial angle range during the rotation of the door body, thereby generating elastic deformation to dampen the movement of the hinge.

22. The refrigerator according to any one of claims 3-21, wherein, The second connecting rod is configured with a limiting part on the side facing the first connecting rod; The elastic sheet is configured with an auxiliary protrusion, which protrudes towards the second connecting rod, and the auxiliary protrusion abuts against the limiting part when the door body is opened to the maximum opening angle.

23. The refrigerator according to any one of claims 3-22, wherein, The third connecting rod comprises a first part and a second part arranged in the height direction of the refrigerator, and the second end of the second connecting rod extends between the first part and the second part; The elastic sheet is configured with a positioning part, which is directed towards and connected to the first part and / or the second part.

24. The refrigerator of claim 23, wherein, The positioning part comprises a first protruding part, which is directed towards the first part, the first part is provided with a first connecting hole, and the first protruding part is inserted into the first connecting hole; The positioning part comprises a second protruding part, which is directed towards the second part, the second part is provided with a second connecting hole, and the second protruding part is inserted into the second connecting hole.

25. The refrigerator of claim 24, wherein, The first protruding part is riveted with the first part, and the second protruding part is riveted with the second part. 26.The refrigerator of claim 24, wherein, The first connecting hole is arranged opposite to the second connecting hole. 27.The refrigerator of claim 24, wherein, The second connecting rod rotates relative to the third connecting rod around a first pivot axis, and the first connecting hole and the second connecting hole are located between the first pivot axis and the second end of the elastic sheet.

28. The refrigerator according to any one of claims 1-27, wherein, The thickness of the elastic sheet is between 1.5mm and 2.5mm, and the ratio of the thickness of the elastic sheet to the unfolded length of the elastic sheet is between 0.01 and 0.

03.

29. The refrigerator according to any one of claims 1-2, wherein, The transmission assembly comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, the first end of the first connecting rod and the first end of the second connecting rod are pivotally connected with the fixed seat, the distance between the first end of the second connecting rod and the front wall of the cabinet is greater than the distance between the first end of the first connecting rod and the front wall, the first end of the third connecting rod and the first end of the fourth connecting rod are pivotally connected with the hinge arm, the distance between the first end of the third connecting rod and the side wall of the cabinet close to the fixed seat is smaller than the distance between the first end of the fourth connecting rod and the side wall, the second end of the first connecting rod is pivotally connected with the second end of the fourth connecting rod, the second end of the second connecting rod is pivotally connected with the fourth connecting rod, the second end of the third connecting rod is pivotally connected with the second connecting rod, and the circumferential side wall of the second end of the third connecting rod is configured with a pressing part; The two ends of the elastic sheet are connected to the two ends of the second connecting rod, and the elastic sheet and the pressing part are in mutual pressing fit at least in a part of the angular range during the rotation of the door body, so as to generate elastic deformation to realize damping effect on the movement of the hinge.

Images