Refrigerator

Abstract

The utility model provides a refrigerator, belongs to the technical field of household appliances, and aims to solve the technical problem that after a door body of a related refrigerator is opened, when external force is relieved, the door body is prone to continuously rotating by a large angle. The hinge of the refrigerator comprises a fixing base, a hinge arm, a transmission assembly and an elastic piece, the fixing base is connected to a refrigerator body, the hinge arm is connected to a door body, the transmission assembly is connected between the fixing base and the hinge arm, a third connecting rod of the transmission assembly comprises a first part and a second part, and the elastic piece is arranged between the first part and the second part. The two ends of the elastic piece are connected to the two ends of the third connecting rod, and part of the elastic piece abuts against and is matched with the second connecting rod within at least part of the angle range in the door body opening process so as to generate elastic deformation to achieve the damping effect on movement of the hinge. Parts of the elastic pieces are matched with the second connecting rod in an abutting mode, the rigidity of the elastic pieces used for being matched with the second connecting rod is improved, the damping effect of the elastic pieces on movement of the hinge is improved, and therefore the rotating angle of the door body can be reduced.

Description

Technical Field

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

[0002] The refrigerator includes a box body, a door body and a hinge. The box body is formed with a receiving cavity for accommodating food or other items. The door body is movably arranged on the box body through the hinge so as to close or open the receiving cavity through the door body.

[0003] In the related art, the hinge is a six-link structure. When the refrigerator needs to be embedded in a cabinet, the hinge can control the door body to bypass the edge of the cabinet and move the door body outward during the opening process, so as to avoid interference between the door body and the cabinet during the opening process and avoid the door body blocking the accommodating cavity.

[0004] However, after the door body is opened to the opening angle required by the user under the action of external force, when the external force applied to the door body is released, the door body is likely to continue to rotate at a larger angle due to inertia, deadweight or manufacturing deviation, resulting in an increase in the deviation between the final opening angle of the door body and the opening angle required by the user. Utility Model Content

[0005] The embodiment of the present application provides a refrigerator that can solve the technical problem that after the door of the related refrigerator is opened under the action of external force, the door body is likely to continue to rotate at a large angle when the external force is released.

[0006] In a first aspect, an embodiment of the present application provides a refrigerator, comprising a box body, a door body and a hinge, wherein the door body is rotatably connected to the box body through the hinge;

[0007] Hinge includes:

[0008] A fixing seat connected to the box body;

[0009] A hinge arm connected to the door body;

[0010] A transmission assembly, comprising a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, wherein the first end of the first connecting rod and the first end of the second connecting rod are both pivotally connected to a fixing seat, the first end of the second connecting rod is farther away from a front wall of a box body than the first end of the first connecting rod, the first end of the third connecting rod and the first end of the fourth connecting rod are both pivotally connected to a hinge arm, the first end of the third connecting rod is closer to a side wall of the box body close to the fixing seat than the first end of the fourth connecting rod, the second end of the first connecting rod is pivotally connected to the second end of the fourth connecting rod, the second end of the third connecting rod is pivotally connected to the first connecting rod, the second end of the second connecting rod is pivotally connected to the third connecting rod, the third connecting rod comprises a first part and a second part spaced apart in a height direction of the refrigerator, the second end of the second connecting rod extends between the first part and the second part, and a pressing part is configured on a circumferential side wall of the second end of the second connecting rod;

[0011] The spring sheet is arranged between the first part and the second part, and the two ends of the spring sheet are connected to the two ends of the third connecting rod. During the opening process of the door body, the spring sheet presses against the pressing part within at least a partial angle range to generate elastic deformation to achieve damping effect on the movement of the hinge; the spring sheet is structured with a positioning part, which faces and is connected to the first part and / or the second part.

[0012] In the refrigerator of the embodiment of the present application, when the door body is opened, when the pressing part and the spring sheet press against each other, the spring sheet deforms along the pressing direction, and the deformation causes the spring sheet to apply an elastic force to the pressing part, and the elastic force increases the pressure between the spring sheet and the pressing part, thereby increasing the frictional resistance to rotation between the spring sheet and the pressing part, thereby achieving a certain damping effect on the movement of the hinge, so that after the external force of opening the door is released, the rotation speed of the door body relative to the cabinet is reduced, thereby reducing the rotation angle of the door body.

[0013] In addition, the positioning portion on the spring sheet is connected to the first part and / or the second part, which reduces the extension length of the part of the spring sheet used to cooperate with the pressing portion, increases the rigidity of the part of the spring sheet used to cooperate with the pressing portion, and makes it more difficult for the part of the spring sheet to undergo elastic deformation, thereby increasing the resistance of the door body during opening, improving the damping effect of the spring sheet on the movement of the hinge, and reducing the rotation speed of the door body relative to the box body after the external force for opening the door is released, thereby reducing the rotation angle of the door body.

[0014] In some embodiments of the present application, the positioning portion includes a first protrusion, the first protrusion faces the first part, the first part has a first connecting hole, and the first protrusion is inserted into the first connecting hole; the positioning portion includes a second protrusion, the second protrusion faces the second part, the second part has a second connecting hole, and the second protrusion is inserted into the second connecting hole.

[0015] Such a configuration reduces the extension length of the spring sheet used to cooperate with the pressing portion, improves the rigidity of the spring sheet used to cooperate with the pressing portion, thereby increasing the resistance during the opening process of the door body, and improving the damping effect of the spring sheet on the movement of the hinge. After the external force for opening the door is released, the rotation speed of the door body relative to the box body is reduced, thereby reducing the rotation angle of the door body.

[0016] In some embodiments of the present application, the first protrusion is riveted to the first portion, and the second protrusion is riveted to the second portion.

[0017] Such an arrangement improves the connection strength between the spring sheet and the third connecting rod.

[0018] In some embodiments of the present application, the first connection hole and the second connection hole are arranged opposite to each other.

[0019] Such an arrangement improves the synchronization of the deformation degree of the spring piece toward one end of the first part and toward one end of the second part, making it difficult for the spring piece to be twisted and deformed, thereby extending the service life of the spring piece and reducing the possibility of damage to the spring piece.

[0020] In some embodiments of the present application, the second connecting rod rotates around the first pivot axis relative to the third connecting rod, and the first connecting hole and the second connecting hole are both located between the first pivot axis and the second end of the elastic sheet.

[0021] In this way, the part of the spring sheet between the first protrusion and the one of the second protrusions closer to the first pivot axis and the first end of the spring sheet and the pressing portion press against each other to produce elastic deformation, which reduces the length of the part of the spring sheet that cooperates with the pressing portion and increases the rigidity, thereby increasing the resistance during the opening of the door body and improving the damping effect of the spring sheet on the movement of the hinge, so that after the external force of opening the door is released, the rotation speed of the door body relative to the box body can be reduced, thereby reducing the rotation angle of the door body.

[0022] In some embodiments of the present application, the first end of the spring sheet is disposed around the pivot axis between the third connecting rod and the first connecting rod, and the second end of the spring sheet is disposed around the pivot axis between the third connecting rod and the hinge arm.

[0023] Such an arrangement reduces the difficulty of assembling the first end of the spring sheet and the second pivot shaft, and reduces the difficulty of assembling the second end of the spring sheet and the third pivot shaft.

[0024] In some embodiments of the present application, the first part includes a first plate body, the second part includes a second plate body, and the first plate body and the second plate body are arranged opposite to each other.

[0025] With such arrangement, the thickness of the first plate body and the second plate body in the height direction of the refrigerator is relatively small, thereby reducing the space occupied by the hinge in the height direction of the refrigerator.

[0026] In some embodiments of the present application, the third connecting rod rotates relative to the second connecting rod with the first pivot axis as the center; the pressing portion includes a curved segment, and the axis corresponding to the curved segment is colinear with the axis of the first pivot axis; the spring sheet and the curved segment press against each other, and the direction of the elastic force of the spring sheet on the curved segment passes through the axis of the first pivot axis.

[0027] With such a configuration, when the curved section and the spring sheet press against each other, the curved section presses against the spring sheet and causes the spring sheet to produce elastic deformation in the pressing direction, and the deformation causes the spring sheet to exert an elastic force on the curved section, and the direction of the elastic force is from the spring sheet to the curved section. The elastic force increases the pressure between the spring sheet and the curved section, thereby increasing the friction resistance of rotation between the spring sheet and the curved section, thereby achieving a certain damping effect on the movement of the hinge, so that after the external force of opening the door body is released, the rotation speed of the door body relative to the box body can be reduced. In addition, the elastic force of the spring sheet on the curved section passes through the axis of the first pivot shaft, so the elastic force is not easy to generate a force arm that causes the second connecting rod to rotate around the first pivot shaft, which is conducive to achieving the hovering of the door body, so as to facilitate users to take and put items from the accommodating cavity.

[0028] In some embodiments of the present application, the spring sheet is constructed with a mating section, which is constructed to be pressed and mated with the pressing portion; the spring sheet is also constructed with a mating protrusion, which is closer to the first connecting rod than the mating section, and the mating protrusion protrudes in a direction away from the fourth connecting rod. The second connecting rod is constructed with a limiting portion on one side of the first connecting rod, and the limiting portion abuts against the mating protrusion to limit the position when the door body is opened to the maximum opening angle.

[0029] With such arrangement, when the door body is opened to the maximum door opening angle and still has a tendency to open, the limiting portion presses the mating protrusion toward the fourth connecting rod and causes the mating protrusion to undergo elastic deformation. Since the mating protrusion is elastic, the mating protrusion will exert an elastic force directed from the mating protrusion to the limiting portion after the elastic deformation. The elastic force can offset at least part of the pressure from the second connecting rod on the mating protrusion, that is, buffer at least part of the door opening force, thereby reducing the possibility that the angle between the second connecting rod and the third connecting rod will continue to decrease, thereby reducing the possibility that the door opening angle will be greater than the maximum door opening angle, thereby reducing the pulling between the door body and the hinge arm, and between the box body and the fixing seat caused by the excessively large door opening angle.

[0030] In a second aspect, an embodiment of the present application provides a refrigerator, comprising a box body, a door body and a hinge;

[0031] Hinge includes:

[0032] A fixing seat connected to the box body;

[0033] A hinge arm connected to the door body;

[0034] A transmission assembly, comprising a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, wherein the first end of the first connecting rod and the first end of the second connecting rod are both pivotally connected to a fixing seat, the first end of the second connecting rod is farther away from a front wall of a box body than the first end of the first connecting rod, the first end of the third connecting rod and the first end of the fourth connecting rod are both pivotally connected to a hinge arm, the first end of the third connecting rod is closer to a side wall of the box body close to the fixing seat than the first end of the fourth connecting rod, the second end of the first connecting rod is pivotally connected to the second end of the fourth connecting rod, the second end of the third connecting rod is pivotally connected to the first connecting rod, the second end of the second connecting rod is pivotally connected to the third connecting rod, the third connecting rod comprises a first part and a second part spaced apart in a height direction of the refrigerator, and the second end of the second connecting rod extends between the first part and the second part;

[0035] The spring sheet is arranged between the first part and the second part, and the two ends of the spring sheet are connected to the two ends of the third connecting rod. During the opening process of the door body, part of the spring sheet presses against the second connecting rod within at least a part of the angle range to generate elastic deformation to achieve damping effect on the movement of the hinge.

[0036] In the refrigerator of the embodiment of the present application, during the process of opening the door body, the second connecting rod presses against the spring sheet and causes the spring sheet to deform in the pressing direction. The deformation causes the spring sheet to exert an elastic force on the second connecting rod, and the elastic force increases the pressure between the spring sheet and the second connecting rod, thereby increasing the friction resistance of the rotation between the spring sheet and the second connecting rod, thereby achieving a certain damping effect on the movement of the hinge, so that after the external force of opening the door is released, the rotation speed of the door body relative to the box body is reduced, thereby reducing the rotation angle of the door body. Part of the spring sheet and the second connecting rod are pressed against each other, reducing the extension length of the spring sheet used to cooperate with the second connecting rod, increasing the rigidity of the part of the spring sheet used to cooperate with the second connecting rod, increasing the resistance during the process of opening the door body, and improving the damping effect of the spring sheet on the movement of the hinge, so that after the external force of opening the door is released, the rotation speed of the door body relative to the box body is reduced, thereby reducing the rotation angle of the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the implementation methods in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technology descriptions. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0038] Figure 1 This is a schematic structural diagram of a refrigerator according to an embodiment of the present application from a first perspective when the door is in a closed state;

[0039] Figure 2 This is a schematic diagram of the structure of the refrigerator according to an embodiment of the present application from a first viewing angle when the door is at the maximum opening angle;

[0040] Figure 3 This is a schematic structural diagram of the refrigerator according to an embodiment of the present application from a second viewing angle when the door is in a closed state;

[0041] Figure 4 This is a schematic diagram of the structure of the refrigerator according to the embodiment of the present application from a second viewing angle when the door is at the maximum opening angle;

[0042] Figure 5 This is a schematic structural diagram of a refrigerator according to an embodiment of the present application when the door is in a closed state;

[0043] Figure 6 This is a schematic structural diagram of a refrigerator according to an embodiment of the present application when the door opening angle is 30°;

[0044] Figure 7 This is a schematic structural diagram of a refrigerator according to an embodiment of the present application when the door opening angle is 60°;

[0045] Figure 8 This is a schematic structural diagram of a refrigerator according to an embodiment of the present application when the door opening angle is 90°;

[0046] Fig. 9 This is a schematic structural diagram of a refrigerator according to an embodiment of the present application when the door is opened to the maximum door opening angle;

[0047] Fig.10 The structure of the second connecting rod, the third connecting rod and the spring in the refrigerator of the embodiment of the present application is shown in FIG. Figure 1 ;

[0048] Fig.11 for Fig.10 Schematic diagram of the explosion structure of the second connecting rod, the third connecting rod and the shrapnel;

[0049] Fig.12 The structure of the second connecting rod, the third connecting rod and the spring in the refrigerator of the embodiment of the present application is shown in FIG. Figure 2 .

[0050] Description of reference numerals:

[0051] 1-Box;

[0052] 2- portal;

[0053] 3- Hinge;

[0054] 31-fixed seat; 32-hinge arm;

[0055] 33-transmission assembly; 331-first connecting rod;

[0056] 332-second connecting rod; 335-curved section;

[0057] 333-third connecting rod; 336-first part;

[0058] 337-second part; 338-first connecting hole;

[0059] 339 - second connection hole; 330 - connection portion;

[0060] 334 - fourth connecting rod; 301 - first pivot axis;

[0061] 302 - second pivot axis; 303 - third pivot axis;

[0062] 304 - fourth pivot axis; 305 - fifth pivot axis;

[0063] 306 - sixth pivot axis; 307 - seventh pivot axis;

[0064] 34-shrapnel; 341-first end;

[0065] 342-second end; 343-matching protrusion;

[0066] 344-first protrusion; 345-second protrusion;

[0067] 348-matching section; 349-pressing surface;

[0068] 340-limiting recess;

[0069] 4-Cabinet;

[0070] 41-end face; 42-edge. DETAILED DESCRIPTION

[0071] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0072] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0073] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such products or devices.

[0074] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0075] The terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third" may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0076] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0077] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0078] refer to Figure 1 The refrigerator of the embodiment of the present application includes a cabinet 1, a door body 2 and a hinge 3. The cabinet 1 is formed with a receiving cavity for receiving food or other items. The opening of the receiving cavity faces the door side of the cabinet 1. The door body 2 is arranged on the door side of the cabinet 1. The door body 2 is rotatably connected to the cabinet 1 through the hinge 3 so as to close or open the receiving cavity through the door body 2.

[0079] refer to Figure 2 and Figure 3 The refrigerator of the embodiment of the present application can be embedded in the cabinet 4 during installation. After installation, the outer side of the door body 2 can be flush with the end surface 41 of the cabinet 4, and an edge 42 is formed between the side of the cabinet 4 facing the box body 1 and the end surface 41 of the cabinet 4.

[0080] refer to Figure 4 The hinge 3 includes a fixing seat 31, a hinge arm 32 and a transmission assembly 33. The fixing seat 31 is connected to the box body 1. The hinge arm 32 is connected to the door body 2. The transmission assembly 33 is connected between the fixing seat 31 and the hinge arm 32.

[0081] refer to Figure 5 The transmission assembly 33 may include a first connecting rod 331 , a second connecting rod 332 , a third connecting rod 333 and a fourth connecting rod 334 .

[0082] 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 .

[0083] The second connecting rod 332 has a first end, and the first end of the second connecting rod 332 is farther away from the front wall of the box body 1 than the first end of the first connecting rod 331. The front wall 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 seat 31.

[0084] 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 .

[0085] The fourth connecting rod 334 has a first end, and the first end of the fourth connecting rod 334 is farther away from the side wall of the box body 1 close to the fixing seat 31 than the first end of the third connecting rod 333. The side wall of the box body 1 refers to both sides of the box body 1 along the width direction X. The first end of the fourth connecting rod 334 is pivotally connected to the hinge arm 32.

[0086] 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 .

[0087] The fourth link 334 has a second end, and the second end of the fourth link 334 and the first end of the fourth link 334 are respectively located at two ends of the extension 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.

[0088] 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 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.

[0089] The second connecting rod 332 has a second end, and the second end of the second connecting rod 332 and the first end of the second connecting rod 332 are respectively located at two ends of the extension direction of the second connecting rod 332. The second end of the second connecting rod 332 is pivotally connected to the third connecting rod 333, and the projection of the second end of the second connecting rod 332 on the third connecting rod 333 is located between the first end of the third connecting rod 333 and the second end of the third connecting rod 333.

[0090] The first link 331 and the second link 332 are both pivotally connected to the fixing seat 31. The first link 331 is closer to the front wall of the box body 1 than the second link 332, and 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 of the box body 1 close to the fixing seat 31 than the fourth link 334.

[0091] The third link 333 and the fourth link 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 end of the second link 332 facing away from the fixing seat 31 is pivotally connected to the third link 333. The fixing seat 31, the first link 331, the second link 332 and the third link 333 form a quadrilateral.

[0092] The third link 333 can rotate relative to the first link 331 around the second pivot axis 302. The hinge arm 32 can rotate relative to the third link 333 around the third pivot axis 303. The third link 333 can rotate relative to the second link 332 around the first pivot axis 301. The first pivot axis 301 is located between the second pivot axis 302 and the third pivot axis 303. The second link 332 can rotate relative to the fixing seat 31 around the fourth pivot axis 304. The first link 331 can rotate relative to the fixing seat 31 around the fifth pivot axis 305. The fourth link 334 can rotate relative to the first link 331 around the sixth pivot axis 306. The hinge arm 32 can rotate relative to the fourth link 334 around the seventh pivot axis 307.

[0093] That is, the third link 333 can rotate relative to the first link 331 around the axis of the second pivot shaft 302. The hinge arm 32 can rotate relative to the third link 333 around the axis of the third pivot shaft 303. The third link 333 can rotate relative to the second link 332 around the axis of the first pivot shaft 301. The second link 332 can rotate relative to the fixing seat 31 around the axis of the fourth pivot shaft 304. The first link 331 can rotate relative to the fixing seat 31 around the axis of the fifth pivot shaft 305. The fourth link 334 can rotate relative to the first link 331 around the axis of the sixth pivot shaft 306. The hinge arm 32 can rotate relative to the fourth link 334 around the axis of the seventh pivot shaft 307.

[0094] 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 shaft 302 , the axis of the third pivot shaft 303 , the axis of the sixth pivot shaft 306 and the axis of the seventh pivot shaft 307 form a quadrilateral.

[0095] 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 shaft 302 , the axis of the first pivot shaft 301 , the axis of the fourth pivot shaft 304 and the axis of the fifth pivot shaft 305 form a quadrilateral.

[0096] In some possible implementations of the present application, reference is made to Figure 5-Figure 9 When the door body 2 is opened, the hinge 3 changes its position under the restraint of the above two quadrilaterals, so that the hinge arm 32 moves 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.

[0097] It should be noted that, outward along the depth direction Y of the refrigerator refers to the direction from the box body 1 to the fixing seat 31 along the depth direction Y of the refrigerator. Figure 5 The positive direction of the direction Y shown in FIG. Outward along the width direction X of the refrigerator refers to the direction from the box body 1 to the cabinet 4 along the width direction X of the refrigerator, for example Figure 5 The positive direction of X is shown in .

[0098] This can not only increase the maximum opening angle of the door body 2, for example, make the maximum opening angle of the door body 2 greater than 90°, thereby reducing the possibility of the door body 2 blocking the accommodating cavity; it can also enable the second connecting rod 332 and the third connecting rod 333 to form an avoidance area. After the opening angle of the door body 2 is greater than 90°, the avoidance area can avoid the edge 42 of the cabinet 4, thereby reducing the possibility of the door body 2 interfering with the cabinet 4 during the opening process.

[0099] refer to Fig.10 , Fig.11 and Fig.12 In some possible implementations of the present application, the third connecting rod 333 may include a first portion 336. The first portion 336 may be plate-shaped or column-shaped.

[0100] The first portion 336 may have a first end. The first end of the first portion 336 may be pivotally connected via the second pivot shaft 302 and the first link 331 .

[0101] The first portion 336 may have a second end. The second end of the first portion 336 and the first end of the first portion 336 are respectively located at two ends of the extension direction of the first portion 336. The second end of the first portion 336 may be pivotally connected to the hinge arm 32 via the third pivot shaft 303.

[0102] The second end of the second link 332 and the first portion 336 may be pivotally connected via the first pivot shaft 301 .

[0103] In some possible implementations of the embodiment of the present application, the third connecting rod 333 may include a second portion 337. The second portion 337 and the first portion 336 may be spaced apart along the height direction Z of the refrigerator. The second portion 337 may be plate-shaped or column-shaped.

[0104] The second portion 337 may have a first end. The first end of the second portion 337 may be pivotally connected via the second pivot shaft 302 and the first link 331 .

[0105] The second portion 337 may have a second end. The second end of the second portion 337 and the first end of the second portion 337 may be located at two ends of the extension direction of the second portion 337, respectively. The second end of the second portion 337 may be pivotally connected to the hinge arm 32 via the third pivot shaft 303.

[0106] The second end of the second link 332 and the second portion 337 may be pivotally connected via the first pivot shaft 301 .

[0107] The first part 336 and the second part 337 both rotate relative to the first link 331 around the second pivot axis 302, that is, the first link 331 is pivotally connected to the first part 336 and the second part 337 via the second pivot axis 302, thereby improving the connection strength between the first link 331 and the third link 333.

[0108] The first part 336 and the second part 337 both rotate relative to the hinge arm 32 around the third pivot axis 303, that is, the hinge arm 32 is pivotally connected to the first part 336 and the second part 337 via the third pivot axis 303, thereby improving the connection strength between the hinge arm 32 and the third connecting rod 333.

[0109] The second end of the second link 332 is pivotally connected to both the first portion 336 and the second portion 337 via the first pivot shaft 301 , thereby improving the connection strength between the second link 332 and the third link 333 .

[0110] In some possible implementations of the present application, the first part 336 may include a first plate. The second part 337 may include a second plate. The first plate and the second plate are arranged opposite to each other. The thickness of the first plate and the second plate in the height direction Z of the refrigerator is small, so that the occupied space of the hinge 3 along the height direction Z of the refrigerator is reduced.

[0111] In some possible implementations of the embodiments of the present application, the end of the second connecting rod 332 that is away from the fixed base 31, that is, the second end of the second connecting rod 332, can extend to between the first part 336 and the second part 337, thereby improving the utilization rate of the space between the first part 336 and the second part 337, so that after the second connecting rod 332 and the third connecting rod 333 are connected, the length of the hinge 3 along the height direction Z of the refrigerator is not increased, so that the space occupied by the hinge 3 along the height direction Z of the refrigerator is reduced, thereby improving the compactness of the hinge 3 structure.

[0112] In some possible implementations of the present application, reference is made to Figure 5-Figure 11 The hinge 3 may further include a spring sheet 34. The spring sheet 34 is elastic and will be elastically deformed and have elastic force under the action of an external force.

[0113] In some possible embodiments, the spring 34 may be a leaf spring, which has a simple structure, reliable operation, low cost and easy maintenance.

[0114] The spring piece 34 can be arranged between the first part 336 and the second part 337. One side of the spring piece 34 faces the second connecting rod 332, and the other side faces the fourth connecting rod 334. In this way, the utilization rate of the space between the first part 336 and the second part 337 is improved, so that after the spring piece 34 and the transmission assembly 33 are assembled, the length of the hinge 3 along the height direction Z of the refrigerator is not increased, the space occupied by the hinge 3 along the height direction Z of the refrigerator is reduced, and the compactness of the hinge 3 structure is improved.

[0115] refer to Figure 5 , Fig.10 , Fig.11 and Fig.12 In some possible implementations of the embodiment of the present application, the spring piece 34 may have a first end 341. The first end 341 of the spring piece 34 is located at one end of the extension direction of the spring piece 34.

[0116] In some possible implementations of the embodiment of the present application, the first end 341 of the spring sheet 34 may be disposed around the second pivot shaft 302 to reduce the difficulty of assembling the first end 341 of the spring sheet 34 and the second pivot shaft 302 .

[0117] In some possible implementations of the embodiment of the present application, the elastic sheet 34 may have a second end 342. The second end 342 of the elastic sheet 34 and the first end 341 of the elastic sheet 34 are respectively located at two ends of the extension direction of the elastic sheet 34.

[0118] In some possible implementations of the embodiment of the present application, the second end 342 of the elastic sheet 34 may be disposed 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 .

[0119] In some possible implementations of the embodiments of the present application, the spring piece 34 can be supported between the first part 336 and the second part 337, so that the first part 336 and the second part 337 are not easily deformed, thereby improving the supporting strength of the spring piece 34 on the third connecting rod 333, thereby improving the strength of the hinge 3.

[0120] In some possible implementations of the present application, the spring piece 34 may be configured with a positioning portion. The positioning portion may include a first protrusion 344. The first protrusion 344 may be configured at one end of the spring piece 34 facing the first portion 336. The first protrusion 344 may be fixedly connected to the first portion 336.

[0121] In some possible implementations of the present application, reference is made to Fig.10 and Fig.11 The first portion 336 may be provided with a first connection hole 338. The first protrusion 344 is inserted into the first connection hole 338, thereby improving the assembly strength of the spring piece 34 and the first portion 336.

[0122] In some possible implementations of the embodiment of the present application, the positioning portion may include a second protrusion 345. The second protrusion 345 may be configured at one end of the elastic sheet 34 facing the second portion 337. The second protrusion 345 may be fixedly connected to the second portion 337.

[0123] In some possible implementations of the present application, reference is made to Fig.10 and Fig.11 The second portion 337 may be provided with a second connection hole 339. The second protrusion 345 is inserted into the second connection hole 339, thereby improving the assembly strength of the spring piece 34 and the second portion 337.

[0124] In some possible implementations of the embodiment of the present application, a circumferential side wall of the end of the second connecting rod 332 that faces away from the fixing seat 31 (that is, the second end of the second connecting rod 332 ) may be configured with a pressing portion.

[0125] During the opening process of the door body 2 , the spring piece 34 presses against the pressing portion within at least a partial angle range, thereby generating elastic deformation to achieve a damping effect on the movement of the hinge 3 .

[0126] During the process of opening the door body 2, the pressing part and the spring sheet 34 press against each other, causing the spring sheet 34 to deform along the pressing direction. The deformation causes the spring sheet 34 to apply an elastic force to the pressing part, which increases the pressure between the spring sheet 34 and the pressing part, thereby increasing the frictional resistance of rotation between the spring sheet 34 and the pressing part, thereby achieving a certain damping effect on the movement of the hinge 3, so that after the external force of opening the door is released, the rotation speed of the door body 2 relative to the box body 1 can be reduced, thereby reducing the rotation angle of the door body 2.

[0127] When closing the door body 2, the damping effect of the spring piece 34 on the movement of the hinge 3 can reduce the closing speed of the door body 2, thereby reducing the possibility of the refrigerator shaking or the door body 2 being damaged due to the door body 2 closing too quickly, and can also reduce the possibility of pinching hands due to the door body 2 closing too quickly.

[0128] After the door body 2 is opened at a certain initial speed under the action of the door opening force, the damping effect of the spring piece 34 on the movement of the hinge 3 can reduce the opening speed of the door body 2, reduce the speed of the door body 2 when it is opened to the maximum door opening angle, and reduce the impact force of the door body 2 on the hinge 3, thereby reducing the pulling between the door body 2 and the hinge arm 32, and between the box body 1 and the fixed seat 31.

[0129] In some possible implementations of the present application, reference is made to Fig.10 and Fig.11 , the first protrusion 344 and the second protrusion 345 can be both disposed between the first pivot axis 301 and the third pivot axis 303. The portion of the spring sheet 34 between one of the first protrusion 344 and the second protrusion 345 close to the first pivot axis 301 and the first end 341 of the spring sheet 34 and the pressing portion press and cooperate with each other to generate elastic deformation. The portion of the spring sheet 34 between one of the first protrusion 344 and the second protrusion 345 close to the first pivot axis 301 and the second end 342 of the spring sheet 34 is not easily elastically deformed because the positions of the two ends in the extension direction are fixed and are not directly pressed and cooperated with the pressing portion.

[0130] The length of the portion of the elastic sheet 34 between the first protrusion 344 and the second protrusion 345 close to the first pivot axis 301 and the first end 341 of the elastic sheet 34 is shorter than the length of the entire elastic sheet 34 , so the elasticity of this portion of the elastic sheet 34 is reduced and the rigidity is increased compared to the entire elastic sheet 34 .

[0131] In some possible implementations of the embodiments of the present application, the first protrusion 344 and the second protrusion 345 may be both disposed between the first pivot axis 301 and the second pivot axis 302. The portion of the spring sheet 34 between one of the first protrusion 344 and the second protrusion 345 close to the first pivot axis 301 and the second end 342 of the spring sheet and the pressing portion press against each other to produce elastic deformation. The portion of the spring sheet 34 between one of the first protrusion 344 and the second protrusion 345 close to the first pivot axis 301 and the first end 341 of the spring sheet 34 is not easily elastically deformed because the positions of the two ends in the extension direction are fixed and are not directly pressed against the pressing portion.

[0132] The length of the portion of the elastic sheet 34 between the first protrusion 344 and the second protrusion 345 close to the first pivot axis 301 and the second end 342 of the elastic sheet 34 is shorter than the length of the entire elastic sheet 34 , so the elasticity of this portion of the elastic sheet 34 is reduced and the rigidity is increased compared with the entire elastic sheet 34 .

[0133] In some possible implementations of the present application, one of the first protrusion 344 and the second protrusion 345 is disposed between the first pivot axis 301 and the third pivot axis 303. The other of the first protrusion 344 and the second protrusion 345 is disposed between the first pivot axis 301 and the second pivot axis 302. The portion of the spring sheet 34 between the first protrusion 344 and the second protrusion 345 and the pressing portion press against each other to generate elastic deformation.

[0134] The portion of the spring sheet 34 between the first protrusion 344 and the second protrusion 345 is easily squeezed by the pressing portion and elastically deformed. Since the length of this portion of the spring sheet 34 is shorter than that of the entire spring sheet 34 , the elasticity of this portion of the spring sheet 34 is reduced and the rigidity is increased compared to the entire spring sheet 34 .

[0135] In the above implementation, the rigidity of the part of the spring sheet 34 used to cooperate with the pressing part is increased, which increases the resistance during the opening process of the door body 2 and improves the damping effect of the spring sheet 34 on the movement of the hinge 3. After the external force of opening the door is released, the rotation speed of the door body 2 relative to the box body 1 can be reduced, thereby reducing the rotation angle of the door body.

[0136] In addition, the stiffness of the part of the spring sheet 34 used to cooperate with the pressing part is increased. When the door body 2 is opened to the maximum opening angle, the resistance from the spring sheet 34 can prevent the door body 2 from continuing to open, thereby reducing the possibility that the opening angle of the door body 2 is greater than the maximum opening angle, thereby reducing the pulling between the door body 2 and the hinge arm 32, and between the box body 1 and the fixed seat 31 caused by the excessive opening angle of the door body 2.

[0137] In some possible implementations of the embodiments of the present application, the first protrusion 344 can be riveted to the first part 336, and the second protrusion 345 can be riveted to the second part 337. In this way, the spring piece 34, the first part 336 and the second part 337 can be fixedly connected, simplifying the structure and assembly relationship of the spring piece 34, the first part 336 and the second part 337, thereby facilitating the production and installation of the hinge 3.

[0138] In addition, the first protrusion 344 is riveted to the first part 336 , and the second protrusion 345 is riveted to the second part 337 , so that the spring piece 34 and the third connecting rod 333 are riveted together, thereby improving the connection strength between the spring piece 34 and the third connecting rod 333 .

[0139] refer to Fig.11 In some possible implementations of the embodiment of the present application, the first connection hole 338 and the second connection hole 339 may be arranged opposite to each other. Since the first protrusion 344 corresponds to the position of the first connection hole 338, and the second protrusion 345 corresponds to the position of the second connection hole 339, when the first connection hole 338 and the second connection hole 339 are arranged opposite to each other, the first protrusion 344 and the second protrusion 345 are also arranged opposite to each other, so that the first protrusion 344 and the second protrusion 345 are located on the same side of the first pivot axis 301, and the first protrusion 344 and the second protrusion 345 are at the same distance from the first pivot axis 301. In this way, when the pressing part presses against the spring sheet 34, the synchronization of the deformation degree of the spring sheet 34 toward one end of the first part 336 and one end of the spring sheet 34 toward the second part 337 is improved, so that the spring sheet 34 is not easy to be torsionally deformed, thereby extending the service life of the spring sheet 34 and reducing the possibility of damage to the spring sheet 34.

[0140] It should be noted that when the first protrusion 344 and the second protrusion 345 are not aligned, since the fixing position of the first protrusion 344 on the spring sheet 34 and the fixing position of the second protrusion 345 on the spring sheet 34 are not aligned, the deformation degree of the spring sheet 34 toward the first part 336 and the end toward the second part 337 are not synchronized, which makes the spring sheet 34 prone to torsional deformation.

[0141] refer to Fig.12 In some possible implementations of the embodiment of the present application, the third connecting rod 333 may include a connecting portion 330. The connecting portion 330 is connected between the first portion 336 and the second portion 337 to connect the first portion 336 and the second portion 337.

[0142] The connecting portion 330 may be located on a side of the elastic sheet 34 away from the second connecting rod 332 to reduce the possibility of interference between the connecting portion 330 and the second connecting rod 332 .

[0143] One end of the connecting part 330 along the height direction Z of the refrigerator can be connected to one end of the first part 336 close to the fourth connecting rod 334, and the other end can be connected to one end of the second part 337 close to the fourth connecting rod 334. The position of the connecting part 330 needs to avoid the deformation path of the spring piece 34 to reduce the possibility of the connecting part 330 blocking the deformation path of the spring piece 34.

[0144] In some possible implementations of the present application, reference is made to Figure 5-Figure 9 The pressing portion may be a curved segment 335 , and the axis corresponding to the curved segment 335 may be colinear with the axis of the first pivot shaft 301 .

[0145] It should be noted that the curved segment 335 may be in the shape of an arc, and the curved segment 335 may also have a certain deviation relative to the arc, as long as the curved segment 335 as a whole conforms to the law of rotation around the axis of the first pivot shaft 301 .

[0146] When the spring piece 34 and the curved section 335 are pressed against each other, the direction of the elastic force of the spring piece 34 on the curved section 335 passes through the axis of the first pivot shaft 301 .

[0147] During the opening process of the door body 2 , the spring piece 34 presses against the curved segment 335 in at least a partial angle range, thereby generating elastic deformation to achieve a damping effect on the movement of the hinge 3 .

[0148] During the process of opening the door body 2, when the curved segment 335 and the spring piece 34 press against each other, the curved segment 335 presses against the spring piece 34 and causes the spring piece 34 to produce elastic deformation along the pressing direction. The deformation causes the spring piece 34 to apply an elastic force F to the curved segment 335. The direction of the elastic force F is from the spring piece 34 to the curved segment 335. The elastic force F increases the pressure between the spring piece 34 and the curved segment 335, thereby increasing the frictional resistance to rotation between the spring piece 34 and the curved segment 335, thereby achieving a certain damping effect on the movement of the hinge 3, so that after the external force for opening the door body 2 is released, the rotation speed of the door body 2 relative to the box body 1 can be reduced.

[0149] In addition, the elastic force F of the spring piece 34 on the curved section 335 passes through the axis of the first pivot axis 301, so 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, which is conducive to making the door body 2 hover, so as to facilitate users to take and put items from the storage cavity.

[0150] refer to Figure 5 , Fig.10 and Fig.11In some possible implementations of the embodiments of the present application, the spring sheet 34 may include a matching section 348. The matching section 348 may be recessed in a direction away from the second connecting rod 332. The matching section 348 is pressed against and matched with the curved section 335 in at least a partial angle range during the opening process of the door body 2, thereby generating elastic deformation to achieve a damping effect on the movement of the hinge 3.

[0151] The side of the matching section 348 facing the curved section 335 has a pressing surface 349. The pressing surface 349 is used to press and match with the curved section 335. The pressing surface 349 is configured to apply an elastic force F to the curved section 335, and the direction of the elastic force F passes through the axis of the first pivot shaft 301.

[0152] The pressing surface 349 may be an arc surface. The axis corresponding to the pressing surface 349 is located on the side of the elastic sheet 34 facing the second connecting rod 332 .

[0153] The radius corresponding to the pressing surface 349 can be equal to or slightly larger than the radius corresponding to the curved segment 335. In this way, when the curved segment 335 is pressed against the pressing surface 349, the curved segment 335 and the pressing surface 349 can fit each other, thereby increasing the contact area between the pressing surface 349 and the curved segment 335, thereby increasing the friction resistance between the pressing surface 349 and the curved segment 335, and improving the damping effect of the spring piece 34 on the movement of the hinge 3, making it easier for the door body 2 to hover after opening.

[0154] It should be noted that the pressing surface 349 is an arc surface. The pressing surface 349 may be an arc surface, or the pressing surface 349 may have a certain deviation relative to the arc surface, as long as the pressing surface 349 and the curved segment 335 are in surface contact.

[0155] refer to Figure 5-Figure 9 In some possible implementations of the embodiments of the present application, during the process of the door body 2 opening from a closed state to a maximum opening angle, the curved segment 335 can always press and cooperate with the matching segment 348 to allow the door body 2 to easily hover at any opening angle.

[0156] In some other possible implementations of the embodiments of the present application, when the opening angle of the door body 2 is between the first set angle and the second set angle, the curved segment 335 and the mating segment 348 are pressed against each other, wherein the first set angle is greater than 0°, the second set angle is greater than the first set angle, and less than the maximum opening angle, so that the door body 2 can hover when it is between the first set angle and the second set angle.

[0157] In some possible implementations of the embodiments of the present application, the pressing portion can be a flange section (not shown in the drawings), and the distance between the flange section and the axis of the first pivot shaft 301 gradually increases from the end close to the door body 2 to the end away from the door body 2. When the spring sheet 34 is pressed against the flange section, the elastic force of the spring sheet 34 on the flange section has two mutually perpendicular components, one of which is directed through the axis of the first pivot shaft 301, and the other is directed toward the front wall of the box body 1.

[0158] The component force directed toward the axis of the first pivot shaft 301 increases the pressure between the spring sheet 34 and the flange section, thereby increasing the frictional resistance of rotation between the spring sheet 34 and the flange section, thereby achieving a certain damping effect on the movement of the hinge 3, so that after the external force of opening the door body 2 is released, the rotation speed of the door body 2 relative to the box body 1 can be reduced. When closing the door body 2, the possibility of pinching the hand due to the door body 2 closing too fast can be reduced.

[0159] The component force directed toward the front wall of the box body 1 causes the second connecting rod 332 to have a force arm for rotating toward the box body 1 around the first pivot axis 301. In this way, when closing the door body 2, after the external force on the door body 2 is released, the component force directed toward the front wall of the box body 1 causes the end of the second connecting rod 332 away from the fixed seat 31 to rotate toward the front wall of the box body 1, thereby providing assistance for the closing of the door body 2 and making it more labor-saving to close the door body 2.

[0160] In some possible implementations of the embodiment of the present application, the spring sheet 34 may include a matching protrusion 343, and the matching protrusion 343 protrudes in a direction away from the fourth connecting rod 334. The matching protrusion 343 may be formed by bending a part of the spring sheet 34 toward the second connecting rod 332, and the side of the matching protrusion 343 away from the fourth connecting rod 334 protrudes in a direction away from the fourth connecting rod 334, and the side of the matching protrusion 343 toward the fourth connecting rod 334 may form a depression away from the fourth connecting rod 334.

[0161] Under the condition that the length between the first end 341 and the second end 342 of the spring piece 34 remains unchanged, constructing a mating protrusion 343 on the spring piece 34 can increase the extension length of the spring piece 34, thereby increasing the deformation of the spring piece 34 when the mating section 348 and the curved section 335 are pressed together, thereby increasing the elastic force F applied by the spring piece 34 to the curved section 335, improving the damping effect of the spring piece 34 on the movement of the hinge 3, and improving the stability of the door body 2 when it is hovering.

[0162] In some possible implementations of the embodiment of the present application, the mating protrusion 343 may be located between the mating segment 348 and the first end 341 of the spring sheet 34 .

[0163] A limiting portion may be constructed on one side of the second connecting rod 332 facing the first connecting rod 331 , and the mating protrusion 343 abuts against the limiting portion when the door body is opened to the maximum door opening angle.

[0164] refer to Figure 5-Figure 9 In the quadrilateral surrounded by the fixed seat 31, the first link 331, the second link 332 and the third link 333, as the opening angle of the door body 2 gradually increases, the angle α between the second link 332 and the third link 333 gradually decreases, wherein the angle α between the second link 332 and the third link 333 is the angle formed by connecting 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.

[0165] When the door body 2 is opened to the maximum door opening angle and still has a tendency to open, the second connecting rod 332 presses the mating protrusion 343 toward the fourth connecting rod 334 and causes the mating protrusion 343 to undergo elastic deformation. Since the mating protrusion 343 is elastic, the mating protrusion 343 applies an elastic force directed from the mating protrusion 343 to the second connecting rod 332 after elastic deformation. The elastic force can offset at least part of the pressure from the second connecting rod 332 on the mating protrusion 343, that is, buffer at least part of the door opening force, thereby reducing the possibility that the angle α between the second connecting rod 332 and the third connecting rod 333 continues to decrease, reducing the possibility that the door opening angle of the door body 2 is greater than the maximum door opening angle, and further reducing the pulling between the door body 2 and the hinge arm 32, and between the box body 1 and the fixing seat 31 caused by the excessively large door opening angle of the door body 2.

[0166] In some possible embodiments, reference Figure 5-Figure 9 as well as Fig.11 The limiting portion may be a limiting recess 340. The limiting recess 340 is configured on a side of the second connecting rod 332 facing the first connecting rod 331. The limiting recess 340 may be recessed in a direction away from the first connecting rod 331.

[0167] Before the door body 2 is opened to the maximum door opening angle, the matching protrusion 343 and the limiting recess 340 are spaced apart and do not contact each other. As the door body 2 opens to the maximum door opening angle, the space between the matching protrusion 343 and the limiting recess 340 gradually decreases. When the door body 2 opens to the maximum door opening angle, at least part of the matching protrusion 343 moves into the limiting recess 340 and contacts the limiting recess 340. When the door opening force of the door body 2 remains unchanged, compared with the implementation method of linear contact between the mating protrusion 343 and the second connecting rod 332, the abutment fit between the mating protrusion 343 and the limiting recess 340 can increase the contact area between the mating protrusion 343 and the limiting recess 340, thereby dispersing the pressure applied by the second connecting rod 332 on the mating protrusion 343, increasing the pressure required for the mating protrusion 343 to deform, that is, increasing the door opening force required for the mating protrusion 343 to deform, and increasing the difficulty of continuing to reduce the angle α between the second connecting rod 332 and the third connecting rod 333, thereby reducing the possibility that the door opening angle of the door body 2 is greater than the maximum door opening angle.

[0168] In some possible embodiments, the limiting portion may be a limiting edge (not shown in the drawings) configured on the side of the second connecting rod 332 facing the first connecting rod 331. The limiting edge may be a plane, or have a certain undulation relative to the plane, as long as the limiting edge can abut against the matching protrusion 343 when the door opening angle of the door body 2 is the maximum door opening angle.

[0169] When the door body 2 is opened to the maximum door opening angle, the mating protrusion 343 abuts against the limiting edge. When the door body 2 still has a tendency to open, the limiting edge squeezes the mating protrusion 343 and causes the mating protrusion 343 to undergo elastic deformation. Since the mating protrusion 343 is elastic, the mating protrusion 343 exerts an elastic force on the limiting edge from the mating protrusion 343 to the second connecting rod 332 after the elastic deformation. The elastic force can offset at least part of the pressure from the limiting edge on the mating protrusion 343, that is, buffer at least part of the door opening force, thereby reducing the possibility that the angle α between the second connecting rod 332 and the third connecting rod 333 continues to decrease, thereby reducing the possibility that the door opening angle of the door body 2 is greater than the maximum door opening angle, and further reducing the pulling between the door body 2 and the hinge arm 32, and between the box body 1 and the fixing seat 31 caused by the excessively large door opening angle of the door body 2.

[0170] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0171] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. 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 variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that: It comprises a box body, a door body and a hinge, wherein the door body is rotatably connected to the box body through the hinge; The hinge comprises: A fixing seat connected to the box; A hinge arm connected to the door body; The transmission assembly comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, wherein the first end of the first connecting rod and the first end of the second connecting rod are both pivotally connected to the fixing seat, the first end of the second connecting rod is farther away from the front wall of the box body than the first end of the first connecting rod, the first end of the third connecting rod and the first end of the fourth connecting rod are both pivotally connected to the hinge arm, the first end of the third connecting rod is closer to the side wall of the box body close to the fixing seat than the first end of the fourth connecting rod, the second end of the first connecting rod is pivotally connected to the second end of the fourth connecting rod, the second end of the third connecting rod is pivotally connected to the first connecting rod, and the second end of the second connecting rod is pivotally connected to the third connecting rod, the third connecting rod comprises a first part and a second part spaced apart along the height direction of the refrigerator, the second end of the second connecting rod extends between the first part and the second part, and the circumferential side wall of the second end of the second connecting rod is configured with a pressing portion; A spring sheet is arranged between the first part and the second part, and the two ends of the spring sheet are connected to the two ends of the third connecting rod. The spring sheet presses against the pressing part within at least a partial angle range during the opening process of the door body to generate elastic deformation to achieve a damping effect on the movement of the hinge; the spring sheet is structured with a positioning part, and the positioning part is oriented towards and connected to the first part and / or the second part.

2. The refrigerator according to claim 1, characterized in that: The positioning portion includes a first protrusion, the first protrusion faces the first portion, the first portion is provided with a first connecting hole, and the first protrusion is inserted into the first connecting hole; The positioning portion includes a second protrusion, the second protrusion faces the second part, the second part is provided with a second connecting hole, and the second protrusion is inserted into the second connecting hole.

3. The refrigerator according to claim 2, characterized in that: The first protrusion is riveted to the first portion, and the second protrusion is riveted to the second portion.

4. The refrigerator according to claim 2, characterized in that: The first connection hole and the second connection hole are arranged opposite to each other.

5. The refrigerator according to claim 2, characterized in that: 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 both located between the first pivot axis and the second end of the elastic sheet.

6. The refrigerator according to any one of claims 1 to 5, characterized in that: The first end of the elastic sheet is arranged around the pivot axis between the third connecting rod and the first connecting rod, and the second end of the elastic sheet is arranged around the pivot axis between the third connecting rod and the hinge arm.

7. The refrigerator according to any one of claims 1 to 5, characterized in that: The first part includes a first plate body, the second part includes a second plate body, and the first plate body and the second plate body are arranged opposite to each other.

8. The refrigerator according to any one of claims 1 to 5, characterized in that: The third link rotates relative to the second link around the first pivot axis; The pressing portion includes a curved segment, and an axis corresponding to the curved segment is colinear with an axis of the first pivot axis; When the spring sheet and the curved segment are pressed against each other, the direction of the elastic force of the spring sheet on the curved segment points to the first pivot axis.

9. The refrigerator according to any one of claims 1 to 5, characterized in that: The spring sheet is provided with a matching section, and the matching section is configured to be pressed and matched with the pressing portion; The spring sheet is also constructed with a mating protrusion, which is closer to the first connecting rod than the mating section, and the mating protrusion protrudes in a direction away from the fourth connecting rod. The second connecting rod is constructed with a limiting portion on one side facing the first connecting rod, and the limiting portion abuts against the mating protrusion to limit the position when the door body is opened to the maximum opening angle.

10. A refrigerator, characterized in that: Including box body, door body and hinge; The hinge comprises: A fixing seat connected to the box; A hinge arm connected to the door body; A transmission assembly, comprising a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, wherein the first end of the first connecting rod and the first end of the second connecting rod are both pivotally connected to the fixing seat, the first end of the second connecting rod is farther away from the front wall of the box body than the first end of the first connecting rod, the first end of the third connecting rod and the first end of the fourth connecting rod are both pivotally connected to the hinge arm, the first end of the third connecting rod is closer to the side wall of the box body close to the fixing seat than the first end of the fourth connecting rod, the second end of the first connecting rod is pivotally connected to the second end of the fourth connecting rod, the second end of the third connecting rod is pivotally connected to the first connecting rod, the second end of the second connecting rod is pivotally connected to the third connecting rod, the third connecting rod comprises a first part and a second part spaced apart in a height direction of the refrigerator, and the second end of the second connecting rod extends between the first part and the second part; A spring sheet is arranged between the first part and the second part, and the two ends of the spring sheet are connected to the two ends of the third connecting rod. Part of the spring sheet presses against the second connecting rod within at least a partial angle range during the opening process of the door body, thereby generating elastic deformation to achieve a damping effect on the movement of the hinge.

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