Refrigerator

Abstract

The utility model discloses a refrigerator, refrigerator includes: door body, box and buffer mechanism. Box forms at least one accommodation space, and door body can open and close the accommodation space, buffer mechanism is located between the box and door body, and buffer mechanism and at least one of box and door body can separate cooperation, and buffer mechanism includes: shell and cooperation department, and shell forms the cooperation cavity, and is equipped with non - newton fluid in cooperation cavity, and cooperation department and cooperation cavity guide cooperation. Therefore, through setting up buffer mechanism between the box and door body, and setting up non - newton fluid in the cooperation cavity of buffer mechanism, utilize non - newton fluid to receive the principle of greater shearing stress and produce greater resistance, when the door body is closed with great force, buffer mechanism can effectively absorb the kinetic energy of door body, realize the effect of strong buffering and deceleration to door body, avoid the rebound after the violent impact of door body and box, improve the reliability of buffer mechanism to door body buffering, prolong the service life of door body, promote user experience.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a refrigerator. Background Technology

[0002] In existing technologies, hydraulic dampers or spring buffer mechanisms are typically used to buffer the refrigerator door. Hydraulic dampers have a complex structure and low adaptability, while spring buffer mechanisms cannot effectively absorb the kinetic energy of the door. The refrigerator door is prone to rebound due to impact, resulting in low reliability of door buffering and a short service life for the door. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the purpose of this invention is to provide a refrigerator that improves the reliability of door buffering.

[0004] According to an embodiment of the present invention, the refrigerator includes: a door, a cabinet, and a buffer mechanism. The cabinet forms at least one accommodating space, and the door can open and close the accommodating space. The buffer mechanism is disposed between the cabinet and the door, and the buffer mechanism is detachably engaged with at least one of the cabinet and the door. The buffer mechanism includes: a shell and a mating part. The shell forms a mating cavity, and a non-Newtonian fluid is disposed within the mating cavity. The mating part is guided to engage with the mating cavity.

[0005] According to the refrigerator of this utility model embodiment, by setting a buffer mechanism between the cabinet and the door, and setting a non-Newtonian fluid in the mating cavity of the buffer mechanism, the buffer mechanism can effectively absorb the kinetic energy of the door when the door is closed forcefully, thereby achieving the effect of strong buffering and deceleration of the door, avoiding the rebound after the door and cabinet collide violently, improving the reliability of the buffer mechanism for buffering the door, extending the service life of the door, and enhancing the user experience.

[0006] In some embodiments, the housing includes: a first housing portion and a second housing portion, the second housing portion being located within the first housing portion, one end of the second housing portion adjacent to the mating portion being connected to one end of the first housing portion adjacent to the mating portion, and the other end of the second housing portion extending axially along the mating portion toward the other end of the first housing portion, the second housing portion defining the mating cavity.

[0007] This allows the second housing portion to define the mating cavity, providing guidance for the movement of the mating portion and improving the stability and reliability of its movement.

[0008] In some embodiments, the first housing portion and the second housing portion define a mounting cavity along the radial direction of the mating portion; the buffer mechanism further includes: a seal, the seal being disposed between the first housing portion and the second housing portion, the seal dividing the mounting cavity into a first chamber and a second chamber, the seal being movable between the first chamber and the second chamber, the second chamber communicating with the mating cavity.

[0009] Therefore, as the door gradually closes, the mating part can push the non-Newtonian fluid in the mating cavity toward the second chamber, and the volume of the second chamber gradually increases while the volume of the first chamber gradually decreases. By setting a seal, the non-Newtonian fluid in the second chamber can be prevented from flowing into the first chamber.

[0010] In some embodiments, the buffer mechanism further includes an elastic element disposed in the first chamber for driving the seal to move from the first chamber to the second chamber.

[0011] Therefore, after the door is opened, the non-Newtonian fluid in the second chamber can be pushed towards the mating cavity by the elastic element, which facilitates the reset of the mating part and allows the mating part to extend out of the outer shell.

[0012] In some embodiments, the other end of the second housing portion is spaced apart from the other end of the first housing portion.

[0013] This facilitates changing the volume of the second chamber, thereby allowing non-Newtonian fluids to move back and forth between the mating cavity and the second chamber.

[0014] In some embodiments, the mating portion has a first position extending out of the housing and a second position retracted within the housing. The mating portion includes a first mating portion and a second mating portion, wherein the first mating portion is guided to engage with the mating cavity; one end of the second mating portion is connected to the first mating portion, and the other end of the second mating portion moves between the first position and the second position.

[0015] This facilitates the axial movement of the mating part within the mating cavity, providing guidance for the movement of the mating part, and making it easier for the door body to contact and push the second mating part, thereby squeezing the non-Newtonian fluid to achieve buffering of the door body.

[0016] In some embodiments, the cross-sectional area of ​​the first mating portion is larger than the cross-sectional area of ​​the second mating portion.

[0017] This facilitates a tight fit between the outer periphery of the first mating part and the second housing part, thereby preventing non-Newtonian fluid from flowing out from the gap between the first mating part and the second housing part and improving the sealing performance between the first mating part and the second housing part.

[0018] In some embodiments, the buffer mechanism further includes a limiting component disposed between the second mating portion and the side wall of the mating cavity. The limiting component includes a first limiting member and a second limiting member. One of the first limiting member and the second limiting member is disposed on the second mating portion, and the other of the first limiting member and the second limiting member is disposed on the side wall of the mating cavity. The first limiting member and the second limiting member are separably mated.

[0019] Therefore, when the first limiting member and the second limiting member are separated, it is convenient for the second mating part to move axially within the mating cavity. When the first limiting member and the second limiting member are engaged, it is convenient to restrict the second mating part from continuing to move within the mating cavity, thereby improving the reliability of the buffer mechanism.

[0020] In some embodiments, at least one of the first limiting member and the second limiting member is multiple, and another of the first limiting member and the second limiting member is disposed between the multiple at least one, wherein the other of the first limiting member and the second limiting member is detachably engaged with the multiple at least one.

[0021] Therefore, the second mating part can be prevented from continuing to move toward the second chamber after the door is closed, and the mating part can be fixed in the second position. At the same time, the second mating part can be prevented from continuing to move away from the second chamber after the door is opened, and the mating part can be fixed in the first position, effectively realizing the limiting component's limiting of the mating part.

[0022] In some embodiments, at least a portion of the sidewall of the housing is formed with a mounting groove, the buffer mechanism is disposed in the mounting groove, and the mating part is detachably mated with the door.

[0023] This allows the buffer mechanism to be easily integrated into the cabinet, improving the refrigerator's overall integration and facilitating the installation of the buffer mechanism.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the buffer mechanism according to an embodiment of the present utility model from one perspective; Figure 2 This is a schematic diagram of the buffer mechanism according to another perspective of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the buffer mechanism according to another perspective of an embodiment of the present utility model; Figure 4 This is a cross-sectional schematic diagram of the buffer mechanism according to an embodiment of the present utility model; Figure 5 yes Figure 4 A magnified schematic diagram of region P in the middle.

[0026] Figure label: 100. Buffer mechanism; 10. Outer shell; 11. First shell portion; 12. Second shell portion; 13. Mating portion; 14. First mating portion; 15. Second mating portion; 20. Sealing element; 21. Elastic element; 22. Limiting assembly; 23. First limiting element; 24. Second limiting element; 30. Mating cavity; 31. Mounting cavity; 32. First chamber; 33. Second chamber; 34. Through hole. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-5 The refrigerator according to an embodiment of the present utility model includes: a door, a cabinet, and a buffer mechanism 100.

[0028] Specifically, the enclosure has at least one accommodating space, and the door can open and close the accommodating space; a buffer mechanism 100 is disposed between the enclosure and the door, and the buffer mechanism 100 can be detachably coupled with at least one of the enclosure and the door, such as... Figures 1-4 As shown, the buffer mechanism 100 includes: a housing 10 and a mating part 13. The housing 10 has a mating cavity 30, and a non-Newtonian fluid is disposed in the mating cavity 30. The mating part 13 is guided and mated with the mating cavity 30.

[0029] The door and the housing are rotatably connected. Rotating the door opens or closes the accommodating space inside the housing. In this embodiment, a buffer mechanism 100 is disposed on the housing, and the buffer mechanism 100 and the door are separably fitted. A mating cavity 30 is formed inside the outer shell 10 of the buffer mechanism 100. The mating cavity 30 extends in the same direction as the mating part 13. The mating part 13 can move axially within the mating cavity 30. At least a portion of the mating part 13 extends out of the outer shell 10 and is separably fitted with the door. A non-Newtonian fluid is provided inside the mating cavity 30. When a large When the door is closed, the door pushes the mating part 13 to move rapidly within the mating cavity 30 and compresses the non-Newtonian fluid. After being subjected to a large shear stress, the viscosity of the non-Newtonian fluid increases sharply and even approaches solidification. At this time, the non-Newtonian fluid generates a large resistance to the mating part 13, causing the door's movement speed to gradually decrease. As the shear stress on the non-Newtonian fluid gradually decreases, the viscosity of the non-Newtonian fluid decreases and generates a smaller resistance to the mating part 13, eventually causing the door to close slowly. The greater the closing force, the better the buffering effect of the buffer mechanism 100 on the door.

[0030] According to the refrigerator of this utility model embodiment, by setting a buffer mechanism 100 between the cabinet and the door, and setting a non-Newtonian fluid in the mating cavity 30 of the buffer mechanism 100, the buffer mechanism 100 can effectively absorb the kinetic energy of the door when the door is closed forcefully, thereby achieving the effect of strong buffering and deceleration of the door, avoiding the rebound after the door and cabinet collide violently, improving the reliability of the buffer mechanism 100 in buffering the door, extending the service life of the door, and improving the user experience.

[0031] Optionally, the mating part 13 is a buffer column, and the non-Newtonian fluid is a shear-thickening non-Newtonian fluid.

[0032] Optionally, when the user gently closes the door, the mating part 13 slowly compresses the non-Newtonian fluid, subjecting the non-Newtonian fluid to a smaller shear stress, resulting in a lower viscosity of the non-Newtonian fluid. At this time, the resistance of the non-Newtonian fluid to the mating part 13 is smaller, making the door easier to close, improving the reliability of the door closure, and at the same time, improving the adaptability of the buffer mechanism 100.

[0033] According to some embodiments of this utility model, such as Figure 4 As shown, the outer shell 10 includes: a first shell portion 11 and a second shell portion 12. The second shell portion 12 is located inside the first shell portion 11. One end of the second shell portion 12 adjacent to the mating portion 13 is connected to one end of the first shell portion 11 adjacent to the mating portion 13. The other end of the second shell portion 12 extends along the axial direction of the mating portion 13 toward the other end of the first shell portion 11. The second shell portion 12 defines a mating cavity 30.

[0034] The second housing portion 12 is disposed inside the first housing portion 11. The second housing portion 12 and the first housing portion 11 are connected to each other along the axial direction of the mating portion 13 near one end of the door body. The other ends of the second housing portion 12 and the first housing portion 11 extend away from the door body along the axial direction of the mating portion 13. The second housing portion 12 defines a mating cavity 30. The mating portion 13 moves axially within the mating cavity 30 of the second housing portion 12.

[0035] Therefore, by placing the second housing portion 12 inside the first housing portion 11, the second housing portion 12 defines the mating cavity 30, providing space for the non-Newtonian fluid. At the same time, the mating cavity 30 can provide guidance for the movement of the mating portion 13, improving the stability and reliability of the movement of the mating portion 13.

[0036] According to some embodiments of this utility model, such as Figure 4 As shown, the first housing portion 11 and the second housing portion 12 define the mounting cavity 31 radially along the mating portion 13; the buffer mechanism 100 further includes a sealing member 20, which is disposed between the first housing portion 11 and the second housing portion 12. The sealing member 20 divides the mounting cavity 31 into a first chamber 32 and a second chamber 33. The sealing member 20 is movable between the first chamber 32 and the second chamber 33. The second chamber 33 communicates with the mating cavity 30.

[0037] An installation cavity 31 is defined between the first housing portion 11 and the second housing portion 12, and a sealing member 20 is provided between the first housing portion 11 and the second housing portion 12. The sealing member 20 and the end of the first housing portion 11 and the second housing portion 12 adjacent to the door body jointly define a first chamber 32. The sealing member 20 and the other end of the first housing portion 11 and the second housing portion 12 away from the door body jointly define a second chamber 33. The second chamber 33 is connected to the mating cavity 30 of the second housing portion 12, and a non-Newtonian fluid is disposed in the second chamber 33 and the mating cavity 30.

[0038] Thus, through the connection between the second chamber 33 and the mating chamber 30, when the door gradually closes, the mating part 13 can push the non-Newtonian fluid in the mating chamber 30 toward the second chamber 33, the volume of the second chamber 33 gradually increases, and the volume of the first chamber 32 gradually decreases. By setting the sealing element 20, the non-Newtonian fluid in the second chamber 33 can be prevented from flowing into the first chamber 32.

[0039] According to some embodiments of this utility model, such as Figure 4 As shown, the buffer mechanism 100 further includes an elastic element 21, which is disposed in the first chamber 32 and is used to drive the seal 20 to move from the first chamber 32 to the second chamber 33.

[0040] In this embodiment, the buffer mechanism 100 includes two elastic elements 21, which are respectively arranged radially opposite to each other along the mating part 13. When the door is slowly closed, the door pushes the mating part 13 to squeeze the non-Newtonian fluid in the mating cavity 30, which increases the amount of non-Newtonian fluid in the second chamber 33 and pushes the sealing element 20 toward the first chamber 32. The elastic element 21 in the first chamber 32 is compressed. When the door is opened, the compressed elastic element 21 pushes the sealing element 20 toward the second chamber 33 and causes the non-Newtonian fluid in the second chamber 33 to move toward the mating cavity 30. The amount of non-Newtonian fluid in the mating cavity 30 gradually increases, which gradually pushes the mating part 13 to move axially away from the second chamber 33.

[0041] Therefore, by providing an elastic element 21 in the first chamber 32, after the door is opened, the elastic element 21 can be used to push the non-Newtonian fluid in the second chamber 33 toward the mating cavity 30, thereby facilitating the reset of the mating part 13 and causing the mating part 13 to extend out of the outer shell 10.

[0042] Optionally, the elastic element 21 is a spring.

[0043] Optionally, a plurality of through holes 34 are formed on the side wall of the first chamber 32. The through holes 34 penetrate the side wall of the first chamber 32 along the radial direction of the mating part 13. When the door is gradually closed, the gas in the first chamber 32 can be discharged from the through holes 34, thereby facilitating the compression of the elastic member 21 by the sealing member 20.

[0044] According to some embodiments of this utility model, such as Figure 4 As shown, the other end of the second housing portion 12 is spaced apart from the other end of the first housing portion 11.

[0045] The ends of the first housing portion 11 and the second housing portion 12, which are away from the door body, are spaced apart axially along the mating portion 13. When the door body pushes the mating portion 13 to move, the non-Newtonian fluid in the mating cavity 30 can move towards the second chamber 33, and the non-Newtonian fluid in the second chamber 33 can push the seal 20 towards the first chamber 32. Thus, by having the other ends of the second housing portion 12 and the first housing portion 11 spaced apart, the volume of the second chamber 33 can be easily changed, thereby facilitating the back-and-forth movement of the non-Newtonian fluid between the mating cavity 30 and the second chamber 33.

[0046] According to some embodiments of the present invention, the mating part 13 has a first position extending out of the outer casing 10 and a second position housed within the outer casing 10, such as... Figure 5 As shown, the mating part 13 includes: a first mating part 14 and a second mating part 15. The first mating part 14 is guided and mated with the mating cavity 30; one end of the second mating part 15 is connected to the first mating part 14, and the other end of the second mating part 15 moves between a first position and a second position.

[0047] The outer periphery of the first mating part 14 forms a guiding fit with the second housing part 12, allowing the first mating part 14 to move within the mating cavity 30 along the axial direction of the mating part 13. One end of the first mating part 14 adjacent to the door body along the axial direction of the mating part 13 is connected to the second mating part 15. The other end of the first mating part 14 away from the door body along the axial direction of the mating part 13 is in contact with a non-Newtonian fluid. The other end of the second mating part 15 away from the first mating part 14 forms a separable fit with the door body, and the other end of the second mating part 15 can extend or retract from the housing. Figure 4 When the other end of the second mating part 15 extends out of the housing, the mating part 13 is in the first position. When the door pushes the second mating part 15 until the door closes, the other end of the second mating part 15 retracts into the housing, and the mating part 13 is in the second position.

[0048] Thus, the first mating part 14 forms a guiding fit with the mating cavity 30, which facilitates the axial movement of the mating part 13 within the mating cavity 30 and provides guidance for the movement of the mating part 13. By providing the second mating part 15, when the other end of the second mating part 15 is in the first position, it is convenient for the door to contact and push the second mating part 15, thereby squeezing the non-Newtonian fluid and achieving buffering of the door. When the other end of the second mating part 15 is in the second position, it is convenient for the door to fit against the cabinet, achieving door closure and improving the sealing and reliability of the refrigerator.

[0049] Optionally, the first mating part 14 and the second mating part 15 are integrally molded parts.

[0050] According to some embodiments of this utility model, such as Figure 5 As shown, the cross-sectional area of ​​the first mating part 14 is larger than the cross-sectional area of ​​the second mating part 15.

[0051] The first mating part 14 has a larger cross-sectional area, which facilitates a tight fit between the outer periphery of the first mating part 14 and the second housing part 12, thereby preventing non-Newtonian fluid from flowing out of the gap between the first mating part 14 and the second housing part 12 and improving the sealing between the first mating part 14 and the second housing part 12. At the same time, the second mating part 15 has a smaller cross-sectional area, which can reduce production costs.

[0052] According to some embodiments of this utility model, such as Figure 5 As shown, the buffer mechanism 100 further includes a limiting component 22, which is disposed between the second mating part 15 and the side wall of the mating cavity 30. The limiting component 22 includes a first limiting member 23 and a second limiting member 24. One of the first limiting member 23 and the second limiting member 24 is disposed on the second mating part 15, and the other of the first limiting member 23 and the second limiting member 24 is disposed on the side wall of the mating cavity 30. The first limiting member 23 and the second limiting member 24 can be separably mated.

[0053] The limiting component 22 is disposed at one end of the buffer mechanism 100 near the door body. Taking the first limiting member 23 disposed on the second mating part 15 and the second limiting member 24 disposed on the side wall of the second housing part 12 near the mating cavity 30 as an example, the first limiting member 23 is disposed on the outer periphery of the second mating part 15 and extends circumferentially along the second mating part 15, and the second limiting member 24 is disposed on the side wall of the second housing part 12 near the second mating part 15 and extends circumferentially along the second housing part 12.

[0054] Therefore, by setting the limiting component 22, and forming a separable engagement with the first limiting member 23 and the second limiting member 24, when the first limiting member 23 and the second limiting member 24 are separated, the second engaging part 15 can move axially within the engaging cavity 30. When the first limiting member 23 and the second limiting member 24 are engaged, the second engaging part 15 can be restricted from continuing to move within the engaging cavity 30, thereby improving the reliability of the buffer mechanism 100.

[0055] According to some embodiments of this utility model, such as Figure 5 As shown, at least one of the first limiting member 23 and the second limiting member 24 is multiple, and another of the first limiting member 23 and the second limiting member 24 is disposed between the multiple at least one, and the other of the first limiting member 23 and the second limiting member 24 is detachably engaged with the multiple at least one.

[0056] In this embodiment, the limiting component 22 includes a first limiting member 23 and two second limiting members 24. The two second limiting members 24 are spaced apart along the axial direction of the mating part 13. The first limiting member 23 is disposed between the two second limiting members 24, and the first limiting member 23 can be separably mated with the two second limiting members 24 respectively. When the door is closed, the door pushes the second mating part 15 to move along the axial direction of the mating part 13 toward the second chamber 33 until the door is closed. The first limiting member 23 engages with the second limiting member 24 away from the door to prevent the second mating part 15 from continuing to move toward the second chamber 33. At this time, the second mating part 15 is in the second position. When the door is opened, the compressed elastic member 21 pushes the non-Newtonian fluid in the second chamber 33 toward the mating cavity 30, thereby pushing the first mating part 14 and the second mating part 15 to move along the axial direction of the mating part 13 toward the direction away from the second chamber 33 until the first limiting member 23 engages with the second limiting member 24 adjacent to the door. At this time, the second mating part 15 is in the first position.

[0057] Therefore, by designing that at least one of the first limiting member 23 and the second limiting member 24 is multiple, the second mating part 15 can be prevented from continuing to move toward the second chamber 33 after the door is closed, and the mating part 13 can be fixed in the second position. At the same time, the second mating part 15 can be prevented from continuing to move away from the second chamber 33 after the door is opened, and the mating part 13 can be fixed in the first position, effectively realizing the limiting component 22's limiting of the mating part 13.

[0058] According to some embodiments of the present invention, at least a portion of the side wall of the box is formed with an installation groove, the buffer mechanism 100 is disposed in the installation groove, and the mating part 13 is detachably mated with the door.

[0059] A mounting groove is formed on one side wall of the housing adjacent to the door. The mounting groove is suitable for mounting the buffer mechanism 100. The outer peripheral wall of the first housing part 11 of the buffer mechanism 100 is fitted with the side wall of the mounting groove. The second mating part 15 is separably fitted with the door at one end, so that the second mating part 15 extends out or retracts into the mating cavity 30.

[0060] Therefore, by placing the buffer mechanism 100 in the mounting groove of the cabinet, it is easy to integrate the buffer mechanism 100 into the cabinet, which improves the integration of the refrigerator and facilitates the installation of the buffer mechanism 100. At the same time, by allowing the mating part 13 to be separably mated with the door, it is easy for the door to push the mating part 13 toward the second chamber 33, squeezing the non-Newtonian fluid in the mating chamber 30 to achieve buffering of the door.

[0061] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0062] In the description of this utility model, "first feature" and "second feature" may include one or more of the features. In the description of this utility model, "multiple" means two or more. In the description of this utility model, "above" or "below" the second feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. In the description of this utility model, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0064] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A refrigerator, characterized in that, include: Door body; A housing having at least one receiving space, and a door capable of opening and closing the receiving space; A buffer mechanism is disposed between the housing and the door, and the buffer mechanism is detachably coupled to at least one of the housing and the door. The buffer mechanism includes: The outer shell has a mating cavity, and a non-Newtonian fluid is disposed within the mating cavity; The mating part is guided and mated with the mating cavity.

2. The refrigerator according to claim 1, characterized in that, The outer casing includes: First shell section; A second housing portion is located inside the first housing portion. One end of the second housing portion adjacent to the mating portion is connected to one end of the first housing portion adjacent to the mating portion. The other end of the second housing portion extends along the axial direction of the mating portion toward the other end of the first housing portion. The second housing portion defines the mating cavity.

3. The refrigerator according to claim 2, characterized in that, The first housing portion and the second housing portion define a mounting cavity along the radial direction of the mating portion; It also includes: a sealing element disposed between the first housing portion and the second housing portion, the sealing element dividing the mounting cavity into a first chamber and a second chamber, the sealing element being movable between the first chamber and the second chamber, the second chamber being in communication with the mating cavity.

4. The refrigerator according to claim 3, characterized in that, Also includes: An elastic element is disposed in the first chamber and is used to drive the seal to move from the first chamber to the second chamber.

5. The refrigerator according to claim 2, characterized in that, The other end of the second housing portion is spaced apart from the other end of the first housing portion.

6. The refrigerator according to claim 1, characterized in that, The mating part has a first position extending out of the housing and a second position retracted within the housing, the mating part comprising: The first mating part is guided to engage with the mating cavity; The second mating part has one end connected to the first mating part, and the other end of the second mating part moves between the first position and the second position.

7. The refrigerator according to claim 6, characterized in that, The cross-sectional area of ​​the first mating part is larger than the cross-sectional area of ​​the second mating part.

8. The refrigerator according to claim 6, characterized in that, The buffer mechanism further includes: A limiting component is provided between the second mating part and the side wall of the mating cavity. The limiting component includes a first limiting member and a second limiting member. One of the first limiting member and the second limiting member is provided on the second mating part, and the other of the first limiting member and the second limiting member is provided on the side wall of the mating cavity. The first limiting member and the second limiting member can be separably mated.

9. The refrigerator according to claim 8, characterized in that, There are multiple first limiting members and multiple second limiting members, and another of the first limiting members and multiple second limiting members is disposed between the multiple at least one. The other of the first limiting member and multiple second limiting members can be separably coupled with the multiple at least one.

10. The refrigerator according to any one of claims 1-9, characterized in that, At least a portion of the sidewalls of the housing are provided with mounting grooves, the buffer mechanism is disposed in the mounting grooves, and the mating part is detachably mated with the door.

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