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 under the action of external force, the door body is easy to continuously rotate by a larger angle when the external force is relieved. 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, and the transmission assembly is connected between the fixing base and the hinge arm. The elastic piece is matched with a curve section on a second connecting rod of the transmission assembly in an abutting mode within at least part of angle range in the door body opening process so as to generate elastic deformation to achieve the damping effect on movement of the hinge, and the elastic force of the elastic piece to the curve section points to the curve section from the elastic piece and passes through the axis of the first pivot shaft. Therefore, the elastic force is not easy to generate a force arm which enables the second connecting rod to rotate around the first pivot shaft, and after the external force applied to the door body is removed, the door body is easy to suspend, so that articles can be conveniently taken and placed in the accommodating cavity.

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 includes six links. 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 angle required by the user, when the external force applied to the door body for rotating the door body relative to the box 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] The hinge comprises:

[0008] A fixing seat connected to the box;

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

[0010] A transmission assembly, comprising a first link, a second link, a third link and a fourth link, wherein the first end of the first link and the first end of the second link are both pivotally connected to the fixed seat, the first end of the second link is farther away from the front wall of the box body than the first end of the first link, the first end of the third link and the first end of the fourth link are both pivotally connected to the hinge arm, the first end of the third link is closer to the side wall of the box body close to the fixed seat than the first end of the fourth link, 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, and the circumferential side wall of the second end of the second link is configured with a curved section, and the curved section rotates around the axis of the first pivot shaft during the opening of the door body;

[0011] A spring sheet, whose two ends are connected to the two ends of the third connecting rod. The spring sheet presses against the curved segment within at least a partial angle range during the opening process of the door body, thereby generating elastic deformation to damp the movement of the hinge. The direction of the elastic force of the spring sheet on the curved segment points to the first pivot axis.

[0012] In the refrigerator of the embodiment of the present application, when the door body is opened to a certain door opening angle and the external door opening force or door closing force applied to the door body is released, the damping effect from the spring can reduce the rotation speed of the door body relative to the cabinet, thereby reducing the angle at which the door body continues to rotate under the influence of inertia, dead weight or manufacturing deviation.

[0013] In addition, the direction of the elastic force of the spring sheet on the curved segment is from the spring sheet to the curved segment and passes through the axis of the first pivot axis. Therefore, the elastic force is not easy to generate a force arm that causes the second connecting rod to rotate around the first pivot axis. After the external force applied to the door body is released, the door body can easily hover to facilitate the removal and placement of items from the storage cavity.

[0014] In some embodiments of the present application, a side of the spring sheet facing the curved segment is a curved surface, and a side of the spring sheet facing the curved segment is concave in a direction away from the curved segment.

[0015] With such arrangement, the deformation of the spring piece can be increased through the depression, thereby increasing the elastic force exerted by the spring piece on the arc segment, thereby achieving a certain damping effect on the movement of the hinge.

[0016] In some embodiments of the present application, a side of the spring sheet facing the curved segment is an arc surface.

[0017] Such arrangement simplifies the structure of the spring piece and facilitates the processing and manufacturing of the spring piece.

[0018] In some embodiments of the present application, the radius corresponding to the side of the spring sheet facing the curved segment is greater than the radius corresponding to the curved segment.

[0019] Such an arrangement makes it easy for the spring sheet to deform, so that the spring sheet and the curved section are pressed against each other to provide a damping effect on the hinge opening process.

[0020] In some embodiments of the present application, the third link rotates relative to the first link around the second pivot axis, and the hinge arm rotates relative to the third link around the third pivot axis;

[0021] The first end of the spring sheet is wound around the second pivot axis, and the second end of the spring sheet is wound around the third pivot axis.

[0022] Such an arrangement reduces the difficulty of assembling the first end of the spring sheet and the second pivot shaft, and the difficulty of assembling the second end of the spring sheet and the third pivot shaft.

[0023] In some embodiments of the present application, a winding direction of the first end of the elastic sheet relative to the second pivot axis is opposite to a winding direction of the second end of the elastic sheet relative to the third pivot axis.

[0024] With such arrangement, when the spring sheet and the curved section are pressed against each other, the spring sheet is easily deformed.

[0025] In some embodiments of the present application, the third connecting rod includes two main plates and a connecting plate, the connecting plate is connected between the two main plates, the two main plates rotate relative to the first connecting rod with the second pivot axis as the center, the two main plates rotate relative to the hinge arm with the third pivot axis as the center, the two main plates rotate relative to the second connecting rod with the first pivot axis as the center, and the spring sheet and the curved segment are pressed against each other and fit between the two main plates.

[0026] Such an arrangement increases the connection strength between the third link and the first link, and between the third link and the hinge arm.

[0027] In some embodiments of the present application, the first pivot axis is disposed between the second pivot axis and the third pivot axis, and the second pivot axis is closer to the box body than the third pivot axis.

[0028] With such an arrangement, the second connecting rod and the third connecting rod can form an avoidance area. When the door body is opened at an angle greater than 90°, the avoidance area can avoid the edge of the cabinet, thereby reducing the possibility of interference between the door body and the cabinet during the opening process.

[0029] In some embodiments of the present application, the thickness of the spring sheet is between 1.5 mm and 2.5 mm, and the ratio of the thickness of the spring sheet to the unfolded length of the spring sheet is between 0.01 and 0.03.

[0030] In this way, the thickness of the spring sheet is between 1.5 mm and 2.5 mm, which can prevent the spring sheet from fatigue fracture and reduce the external force required when opening and closing the door. The ratio of the thickness of the spring sheet to the unfolded length of the spring sheet is between 0.01 and 0.03, so that the spring sheet can be bent and formed, making it easy to produce.

[0031] In a second aspect, an embodiment of the present application provides a refrigerator, comprising a box body, a door body and a hinge;

[0032] The hinge comprises:

[0033] A fixing seat connected to the box;

[0034] A hinge arm connected to the door body;

[0035] A transmission assembly, comprising a first link, a second link, a third link and a fourth link, wherein the first end of the first link and the first end of the second link are both pivotally connected to the fixed seat, the first end of the second link is farther away from the front wall of the box body than the first end of the first link, the first end of the third link and the first end of the fourth link are both pivotally connected to the hinge arm, the first end of the third link is closer to the side wall of the box body close to the fixed seat than the first end of the fourth link, 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, and the circumferential side wall of the second end of the second link is configured with a curved section, and the curved section rotates around the axis of the first pivot shaft during the opening of the door body;

[0036] The spring sheet has two ends connected to the two ends of the third connecting rod and is configured to damp the movement of the hinge, and the direction of the elastic force of the spring sheet on the curved segment points to the first pivot axis.

[0037] In the refrigerator of the embodiment of the present application, when the door body is opened to a certain door opening angle and the external door opening force or door closing force applied to the door body is released, the damping effect from the spring can reduce the rotation speed of the door body relative to the cabinet, thereby reducing the angle at which the door body continues to rotate under the influence of inertia, dead weight or manufacturing deviation.

[0038] In addition, the direction of the elastic force of the spring sheet on the curved segment is from the spring sheet to the curved segment and passes through the axis of the first pivot axis. Therefore, the elastic force is not easy to generate a force arm that causes the second connecting rod to rotate around the first pivot axis. After the external force applied to the door body is released, the door body can easily hover to facilitate the removal and placement of items from the storage cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] 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.

[0040] Figure 1 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;

[0041] Figure 2 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;

[0042] Figure 3This 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;

[0043] 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;

[0044] 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;

[0045] Figure 6 This is a schematic structural diagram of a refrigerator according to an embodiment of the present application when the door is opened to a certain angle;

[0046] Figure 7 This is a schematic structural diagram of a refrigerator according to an embodiment of the present application when the door is opened to another angle;

[0047] Figure 8 This is a schematic structural diagram of the refrigerator according to the embodiment of the present application when the door is opened to another angle;

[0048] 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;

[0049] Fig.10 This is a schematic structural diagram of the third connecting rod of the hinge of an embodiment of the present application.

[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; 336-curved section;

[0057] 333-third connecting rod; 3331-main body plate;

[0058] 3332-connecting plate; 334-fourth connecting rod;

[0059] 301-first pivot axis; 302-second pivot axis;

[0060] 303 - third pivot axis; 304 - fourth pivot axis;

[0061] 305 - fifth pivot axis; 306 - sixth pivot axis;

[0062] 307-seventh pivot axis; 34-spring;

[0063] 341-first end; 342-second end;

[0064] 4-Cabinet;

[0065] 41-end face; 42-edge. DETAILED DESCRIPTION

[0066] 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, not all of the embodiments.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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 .

[0077] 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 .

[0078] 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.

[0079] 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 .

[0080] 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.

[0081] 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 .

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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. 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.

[0086] 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.

[0087] 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 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.

[0088] 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.

[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 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 are connected and 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 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 are connected and form a quadrilateral.

[0091] refer 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.

[0092] 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 5The 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 the direction X shown in .

[0093] 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.

[0094] In some possible implementations of the present application, the circumferential side wall of the end of the second connecting rod 332 facing away from the fixing seat 31 may be constructed with a curved segment 336 , that is, the circumferential side wall of the second end of the second connecting rod 332 may be constructed with a curved segment 336 .

[0095] It should be noted that the curved segment 336 may be in an arc shape, and the curved segment 336 may also have a certain deviation from 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. In the implementation method in which the curved segment 336 is in an arc shape, the axis corresponding to the curved segment 336 is collinear with the axis of the first pivot shaft 301.

[0096] refer to Figure 5-Figure 9 The hinge 3 may include a spring sheet 34. The spring sheet 34 is elastic and will be elastically deformed and have elastic force under the action of external force.

[0097] In some possible embodiments, the spring 34 may be a leaf spring, which has a simple structure, reliable operation, and easy maintenance.

[0098] 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 .

[0099] refer to Figure 5 In some possible embodiments, the elastic sheet 34 may have a first end 341. The first end 341 of the elastic sheet 34 is located at one end of the extension direction of the elastic sheet 34.

[0100] In some possible embodiments, the first end 341 of the elastic sheet 34 may be disposed 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 .

[0101] In some possible embodiments, 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.

[0102] In some possible embodiments, 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 .

[0103] In some possible implementations of the embodiments of the present application, the spring piece 34 is pressed against the curved segment 336 within at least a partial angle range during the opening or closing process of the door body 2 to generate elastic deformation to achieve a damping effect on the movement of the hinge 3.

[0104] 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 applies an elastic force F to the curved segment 336, and 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, and further achieving a certain damping effect on the movement of the hinge 3.

[0105] 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 34 can reduce the rotation speed of the door body 2 relative to the box body 1, thereby reducing the angle at which the door body 2 continues to rotate under the influence of inertia, deadweight or manufacturing deviation.

[0106] In addition, the curved segment 336 presses against the spring piece 34, and the direction of the elastic force F of the spring piece 34 on the curved segment 336 is 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 for closing or opening the door. The spring piece 34 only realizes a certain damping effect on the movement of the hinge 3, and the door body 2 is easy to hover, so as to facilitate the taking and placing of items from the accommodating cavity.

[0107] 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.

[0108] Among them, after the door body 2 is opened to a certain opening angle under the action of external force, when the external force is released, the door body 2 maintains the opening angle before the external force is released, which is called the door body 2 achieving hovering.

[0109] In some possible implementations of the embodiments of the present application, if the thickness of the spring piece 34 is less than 1.5 mm, since the carbon content of spring steel is usually higher than that of ordinary steel, usually between 0.6% and 1.2%, the material properties are relatively brittle. For example, when the door is closed, the spring piece 34 is prone to fatigue fracture.

[0110] In some possible implementations of the embodiment of the present application, the thickness of the spring piece 34 is greater than or equal to 1.5 mm, so that the service life of the spring piece 34 can be extended.

[0111] In some possible implementations of the embodiments of the present application, if the thickness of the spring piece 34 is greater than 2.5 mm, the strength of the spring piece 34 is too high, resulting in difficulty in opening or closing the door when the spring piece 34 and the second connecting rod 332 are pressed together, making the hinge 3 inconvenient to use.

[0112] In some possible implementations of the embodiments of the present application, 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.

[0113] In some possible implementations of the embodiments of the present application, if the ratio of the thickness of the spring piece 34 to the unfolded length of the spring piece 34 is less than or equal to 0.03, the spring piece 34 is easy to produce.

[0114] In some possible implementations of the embodiments of the present application, when the ratio of the thickness of the spring clip 34 to the unfolded length of the spring clip 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 clip 34 is 2 mm, the unfolded length of the spring clip 34 is 50 mm, 100 mm or 150 mm, this not only facilitates the production and manufacturing of the spring clip 34, but also helps to extend the service life of the spring clip 34.

[0115] 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.

[0116] In some possible implementations of the present application, reference is made to Figure 5 , the side of the spring piece 34 facing the curved section 336 can be a curved surface. The curved surface is pressed against the curved section 336, and the side of the spring piece 34 facing the curved section 336 is concave in the direction away from the curved section 336, that is, the curved surface is concave in the direction away from the curved section 336. The concave is formed by bending the spring piece 34, and the concave can increase the deformation of the spring piece 34, thereby increasing the elastic force applied by the spring piece 34 to the curved section 336, and then achieving a certain damping effect on the movement of the hinge 3.

[0117] In some examples, the side of the spring piece 34 facing the curved segment 336 may be an arc surface to simplify the structure of the spring piece 34 and facilitate the processing and manufacturing of the spring piece 34. The radius corresponding to the arc surface is greater than the radius corresponding to the curved segment 336, that is, the radius corresponding to the side of the spring piece 34 facing the curved segment 336 is greater than the radius corresponding to the curved segment 336, so that the spring piece 34 is easy to deform, so that the spring piece 34 and the curved segment 336 are pressed against each other to provide a damping effect on the opening process of the hinge 3.

[0118] The side of the elastic piece 34 away from the arc segment 336 protrudes in a direction away from the arc segment 336 .

[0119] 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.

[0120] In some possible implementations of the embodiments of the present application, the first setting angle can be 0°, and the second setting angle can be the maximum door opening angle of the refrigerator. In this case, the second setting angle is greater than 90°, so that the spring piece 34 can damp the movement of the hinge 3 when the refrigerator is opened at any door angle.

[0121] The second setting angle can be set according to actual needs. In some examples, the second setting angle can be 115°.

[0122] For example, see Figure 5 , the opening angle of the hinge 3 is 0°. At this time, the curved section 336 of the hinge 3 is pressed against the spring 34, the hinge 3 is in a closed state, and the door body 2 is in a closed state, that is, the opening angle of the door body 2 is 0°.

[0123] See also Figure 6 The state of the hinge 3 is opened from 0° to 30°. At this time, the curved section 336 of the hinge 3 is pressed and matched with the spring 34, and the opening angle of the door body 2 is 30°.

[0124] See also Figure 7 The state of the hinge 3 is opened from 30° to 60°. At this time, the curved section 336 of the hinge 3 is pressed and matched with the spring piece 34, and the opening angle of the door body 2 is 60°.

[0125] See also Figure 8 The state of the hinge 3 is opened from 60° to 90°. At this time, the curved section 336 of the hinge 3 is pressed and matched with the spring 34, and the opening angle of the door body 2 is 90°.

[0126] See also Fig. 9, the state of the hinge 3 is opened from 90° to 115°. At this time, the curved section 336 of the hinge 3 is pressed and matched with the spring piece 34, and the opening angle of the door body 2 is 115°, that is, the maximum opening angle of the door body 2 can be 115°.

[0127] When the door body 2 is opened from 0° to 115°, the spring piece 34 applies an elastic force F to the curved segment 336 , thereby achieving a certain damping effect on the movement of the hinge 3 .

[0128] In some other possible implementations of the embodiments of the present application, when the opening angle of the door body 2 is between a first set angle and a second set angle, wherein the first set angle is greater than 0°, and the second set angle is greater than the first set angle and less than the maximum opening angle of the refrigerator, the curved segment 336 and the spring piece 34 press against each other so that when the door body 2 is between the first set angle and the second set angle, the spring piece 34 has a damping effect on the movement of the hinge 3.

[0129] 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 maximum opening angle, wherein the first set angle is greater than 0° and less than the maximum opening angle, the curved segment 336 and the spring piece 34 press against each other so that when the opening angle of the door body 2 is between the first set angle and the maximum opening angle, the spring piece 34 has a damping effect on the movement of the hinge 3.

[0130] In some embodiments, reference Figure 5 and Fig.10 , the third connecting rod 333 may include two main body plates 3331 and a connecting plate 3332. The two main body plates 3331 are arranged at intervals along the height direction Z of the refrigerator. The two main body plates 3331 rotate relative to the first connecting rod 331 with the second pivot axis 302 as the center. The two main body plates 3331 rotate relative to the hinge arm 32 with the third pivot axis 303 as the center. 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.

[0131] One end of the second connecting rod 332 away from the fixing seat 31 can extend between the two main body plates 3331. One end of the second connecting rod 332 away from the fixing seat 31 is pivotally connected to the two main body plates 3331. That is, the two main body plates 3331 rotate relative to the second connecting rod 332 around the first pivot axis 301.

[0132] The spring piece 34 can be arranged between the two main body plates 3331, so that the structure of the hinge 3 is more compact. The spring piece 34 and the curved section 336 are pressed against each other and fit between the two main body plates 3331, without additionally increasing the length of the hinge 3 along the height direction Z of the refrigerator, thereby reducing the space occupied by the hinge 3 along the height direction Z of the refrigerator.

[0133] The winding direction of the first end 341 of the spring sheet 34 relative to the second pivot axis 302 is opposite to the winding direction of the second end 342 of the spring sheet 34 relative to the third pivot axis 303, so that the spring sheet 34 is easily deformed when the spring sheet 34 and the curved segment 336 are pressed against each other. Specifically, the first end 341 can be wound around the second pivot axis 302 in a counterclockwise direction, and the second end 342 can be wound around the third pivot axis 303 in a clockwise direction.

[0134] The connecting plate 3332 is connected between the two main body plates 3331 to connect the two main body plates 3331 .

[0135] The first pivot axis 301 is arranged between the second pivot axis 302 and the third pivot axis 303, and the second pivot axis 302 is closer to the box body 1 than the third pivot axis 303. With such arrangement, the second connecting rod 332 and the third connecting rod 333 can form a avoidance area, and after the door body 2 is opened at an angle greater than 90°, the avoidance area can avoid the edge 42 of the cabinet 4, thereby reducing the possibility of interference between the door body 2 and the cabinet 4 during the opening process.

[0136] The connecting plate 3332 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 plate 3332 and the second connecting rod 332 .

[0137] 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.

[0138] 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: include: 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; A transmission assembly, comprising a first link, a second link, a third link and a fourth link, wherein the first end of the first link and the first end of the second link are both pivotally connected to the fixed seat, the first end of the second link is farther away from the front wall of the box body than the first end of the first link, the first end of the third link and the first end of the fourth link are both pivotally connected to the hinge arm, the first end of the third link is closer to the side wall of the box body close to the fixed seat than the first end of the fourth link, 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, and the circumferential side wall of the second end of the second link is configured with a curved section, and the curved section rotates around the axis of the first pivot shaft during the opening process of the door body; A spring sheet, whose two ends are connected to the two ends of the third connecting rod. The spring sheet presses against the curved segment within at least a partial angle range during the opening process of the door body, thereby generating elastic deformation to damp the movement of the hinge. The direction of the elastic force of the spring sheet on the curved segment points to the first pivot axis.

2. The refrigerator according to claim 1, characterized in that: The side of the spring sheet facing the curved segment is a curved surface, and the side of the spring sheet facing the curved segment is concave in a direction away from the curved segment.

3. The refrigerator according to claim 2, characterized in that: The side of the spring piece facing the curved segment is an arc surface.

4. The refrigerator according to claim 3, characterized in that: The radius corresponding to the side of the spring sheet facing the curved segment is greater than the radius corresponding to the curved segment.

5. The refrigerator according to any one of claims 1 to 4, characterized in that: The third link rotates relative to the first link around the second pivot axis, and the hinge arm rotates relative to the third link around the third pivot axis; The first end of the spring sheet is wound around the second pivot axis, and the second end of the spring sheet is wound around the third pivot axis.

6. The refrigerator according to claim 5, characterized in that: The winding direction of the first end of the elastic sheet relative to the second pivot axis is opposite to the winding direction of the second end of the elastic sheet relative to the third pivot axis.

7. The refrigerator according to claim 5, characterized in that: The third connecting rod includes two main plates and a connecting plate, the connecting plate is connected between the two main plates, the two main plates rotate relative to the first connecting rod with the second pivot axis as the center, the two main plates rotate relative to the hinge arm with the third pivot axis as the center, the two main plates rotate relative to the second connecting rod with the first pivot axis as the center, and the spring sheet and the curved section are pressed against each other and fit between the two main plates.

8. The refrigerator according to claim 7, characterized in that: The first pivot axis is disposed between the second pivot axis and the third pivot axis, and the second pivot axis is closer to the box body than the third pivot axis.

9. The refrigerator according to any one of claims 1 to 4, characterized in that: The thickness of the spring sheet is between 1.5 mm and 2.5 mm, and the ratio of the thickness of the spring sheet to the unfolded length of the spring sheet is between 0.01 and 0.

03.

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 link, a second link, a third link and a fourth link, wherein the first end of the first link and the first end of the second link are both pivotally connected to the fixed seat, the first end of the second link is farther away from the front wall of the box body than the first end of the first link, the first end of the third link and the first end of the fourth link are both pivotally connected to the hinge arm, the first end of the third link is closer to the side wall of the box body close to the fixed seat than the first end of the fourth link, 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, and the circumferential side wall of the second end of the second link is configured with a curved section, and the curved section rotates around the axis of the first pivot shaft during the opening process of the door body; The spring sheet has two ends connected to the two ends of the third connecting rod and is configured to damp the movement of the hinge, and the direction of the elastic force of the spring sheet on the curved segment points to the first pivot axis.

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