Refrigeration equipment

Abstract

The utility model relates to the technical field of household appliances, and discloses a refrigeration device which comprises a box body defining a refrigeration space; the door body is arranged on the refrigerator body in an openable and closable mode so as to open or close the refrigeration space, and a hinge hole is formed in the door body; one end of the first hinge is fixedly connected with the box body, and the other end is arranged in the hinge hole and can rotate relative to the hinge hole; wherein the other end of the first hinge is in clearance fit with the hinge hole in the front-back direction, and when the door body is closed, the hinge hole can move backwards relative to the other end of the first hinge under the action of the internal and external pressure difference of the refrigeration equipment, so that the door body is driven to move towards the direction close to the box body, and the distance between the door body and the box body is reduced. Therefore, the sealing performance between the door body and the refrigerator body can be improved, cold leakage is reduced, and energy consumption is saved. Moreover, the design of the movable hinge can reduce the deformation gap between the hinge mounting side and the door opening side of the door body, the condition that the door body is not aligned is improved, and the distance between the door body and each position of the box body is consistent.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a refrigeration device. Background Art

[0002] At present, when refrigerators, freezers and other refrigeration equipment are working normally, the temperature inside the box decreases, which causes the air pressure inside the box to decrease, resulting in the air pressure inside the box being lower than the air pressure outside the box, generating negative pressure. The door body will deform under the effect of this internal and external pressure difference. Due to the support of the door hinge, the deformation of the door body on the hinge side is smaller than that of other positions, which will cause the door body to be uneven or even tilted, affecting the appearance.

[0003] The related technology discloses a door adjustment structure for a refrigeration device, wherein the refrigeration device includes a box body and a door body, wherein at least one mounting hole is provided on a door frame where the door body contacts the box body and / or at least one mounting hole is provided on the box body, and a support member is provided in the mounting hole, and when the door body is closed, the support member is supported between the door body and the box body.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] Although the support can ensure that the distance from the hinge side of the door body to the box body is the same as the distance from the door opening side, the presence of the support will increase the distance between the door body and the box body, reduce the sealing performance between the door body and the box body, cause the box body to leak cold and waste electricity.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a refrigeration device, which uses the pressure difference between the inside and outside of the door body to adjust the distance between the door body and the box body, thereby reducing the cold leakage of the box body and improving the unevenness of the door body.

[0009] According to an embodiment of the utility model, a refrigeration device is provided, comprising: a box body, which defines a refrigeration space; a door body, which is openably arranged on the box body to open or close the refrigeration space, and is provided with a hinge hole; a first hinge, one end of which is fixedly connected to the box body, and the other end is arranged in the hinge hole and can rotate relative to the hinge hole; wherein the other end of the first hinge and the hinge hole are clearance-fitted in the front-to-back direction, and when the door body is closed, under the effect of the pressure difference between the inside and outside of the refrigeration device, the hinge hole can move backward relative to the other end of the first hinge, thereby driving the door body to move toward the direction close to the box body, so as to reduce the distance between the door body and the box body.

[0010] Optionally, the first hinge includes: a fixed plate connected to the box body; a hinge shaft with a circular or fan-shaped cross-section, one end of which is connected to the fixed plate, and the other end is inserted into the hinge hole and can rotate and translate relative to the hinge hole; wherein the cross-section of the hinge hole is elliptical.

[0011] Optionally, the major axis of the hinge hole is greater than the outer diameter of the hinge shaft, and the minor axis of the hinge hole is equal to the outer diameter of the hinge shaft.

[0012] Optionally, the difference between the major axis of the hinge hole and the outer diameter of the hinge shaft is between 1 mm and 3 mm.

[0013] Optionally, the refrigeration device further comprises: a shaft sleeve, which is embedded in the hinge hole and sleeved on the outer side of the hinge shaft.

[0014] Optionally, the sleeve includes: a first arched portion, embedded in the rear side of the hinge hole, including a first side and a second side that are oppositely arranged; a second arched portion, embedded in the front side of the hinge hole, including a third side and a fourth side that are oppositely arranged, the third side is connected to the first side, and the fourth side is connected to the second side; wherein the first arched portion and the second arched portion form an installation cavity, the hinge shaft is inserted into the installation cavity and can rotate and translate relative to the installation cavity.

[0015] Optionally, the first side and the second side are flush, and the third side and the fourth side are flush; the connection between the first side and the third side is recessed into the installation cavity to form a first limiting structure, and the connection between the second side and the fourth side is recessed into the installation cavity to form a second limiting structure; wherein the distance from the first limiting structure to the second limiting structure is less than or equal to the outer diameter of the hinge shaft.

[0016] Optionally, the bushing is of self-lubricating material.

[0017] Optionally, the first hinge is arranged on the upper end surface of the door body, and the refrigeration device also includes: a second hinge, which is arranged on the lower end surface of the door body and is located on the same side of the door body as the first hinge, one end of which is fixedly connected to the box body, and the other end is arranged in the hinge hole and can rotate relative to the hinge hole and translate in the front and rear directions.

[0018] Optionally, hinge holes are provided on the left and right sides of the door body, forming a left hinge hole and a right hinge hole respectively, and the first hinge is detachably connected to the left hinge hole and the right hinge hole. When the first hinge is removed from the left hinge hole, it can be installed in the right hinge hole to change the opening direction of the door body.

[0019] The refrigeration equipment provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] During the refrigeration process, a pressure difference is generated inside and outside the refrigeration equipment, and the pressure of the external environment is greater than the pressure in the refrigeration space. The other end of the hinge is inserted into the hinge hole, and is clearance-matched with the hinge hole in the front-to-back direction. In this way, when the door body is closed, under the action of the pressure difference inside and outside the refrigeration equipment, the hinge hole can move backward relative to the other end of the hinge, thereby driving the door body to move toward the direction close to the cabinet, so as to reduce the distance between the door body and the cabinet, improve the sealing between the door body and the cabinet, reduce cold leakage, and save energy. Moreover, the design of this movable hinge can reduce the deformation gap between the hinge installation side and the door opening side of the door body, improve the unevenness of the door body, and make the distance between the door body and the cabinet consistent at all positions.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of a refrigeration device provided by an embodiment of the present disclosure from a first perspective;

[0024] Figure 2 is a structural schematic diagram of a refrigeration device provided by an embodiment of the present disclosure from a second perspective;

[0025] Figure 3 is a schematic diagram of the assembly of the hinge shaft and the hinge hole provided in an embodiment of the present disclosure;

[0026] Figure 4 is a schematic diagram of the assembly of the hinge shaft and the shaft sleeve provided in an embodiment of the present disclosure;

[0027] Figure 5 yes Figure 4 Schematic diagram of the cross section along the AA direction.

[0028] Reference numerals:

[0029] 10: Refrigeration equipment;

[0030] 20: box;

[0031] 30: Door body; 31: Hinge hole;

[0032] 40: first hinge; 41: fixing plate; 42: hinge axis;

[0033] 50: bushing; 51: first arched portion; 511: first side; 512: second side; 52: second arched portion; 521: third side; 522: fourth side; 53: mounting cavity; 54: first limiting structure; 55: second limiting structure. DETAILED DESCRIPTION

[0034] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0035] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate for the disclosed embodiments described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0036] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0037] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] Unless otherwise stated, the term "plurality" means two or more.

[0039] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0040] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0042] At present, when refrigeration equipment 10 such as refrigerators and freezers is in use, the temperature inside the box 20 decreases due to the refrigeration effect inside the box 20, which reduces the air pressure inside the box 20, resulting in the air pressure inside the box 20 being lower than the air pressure outside the box 20, generating negative pressure.

[0043] The formation process of the negative pressure phenomenon is roughly as follows: after the door body 30 is opened, gas exchange is carried out between the inside and outside of the refrigerator or freezer, and the outside hot air enters the compartment; after the door body 30 is closed, the hot air in the compartment gradually decreases in temperature due to the effect of refrigeration, and the pressure in the compartment decreases, resulting in a pressure difference between the inside and outside of the refrigerator or freezer.

[0044] Combination Figure 1-5 As shown, the embodiment of the present disclosure provides a refrigeration device 10, including a box body 20, a door body 30 and a first hinge 40. The box body 20 defines a refrigeration space. The door body 30 is arranged on the box body 20 in an openable and closable manner to open or close the refrigeration space, and the door body 30 is provided with a hinge hole 31. One end of the first hinge 40 is fixedly connected to the box body 20, and the other end is arranged in the hinge hole 31 and can rotate relative to the hinge hole 31. Among them, the other end of the first hinge 40 and the hinge hole 31 are clearance-fitted in the front-to-back direction. When the door body 30 is closed, under the effect of the pressure difference between the inside and outside of the refrigeration device 10, the hinge hole 31 can move backward relative to the other end of the first hinge 40, thereby driving the door body 30 to move in the direction close to the box body 20, so as to reduce the distance between the door body 30 and the box body 20.

[0045] Using the refrigeration device 10 provided by the embodiment of the present disclosure, during the refrigeration process, a pressure difference is generated inside and outside the refrigeration device 10, and the pressure of the external environment is greater than the pressure in the refrigeration space. The other end of the hinge is inserted into the hinge hole 31, and is clearance-matched with the hinge hole 31 in the front-to-back direction. In this way, when the door body 30 is closed, under the action of the pressure difference between the inside and outside of the refrigeration device 10, the hinge hole 31 can move backward relative to the other end of the hinge, thereby driving the door body 30 to move toward the direction close to the box body 20, so as to reduce the distance between the door body 30 and the box body 20, improve the sealing between the door body 30 and the box body 20, reduce cold leakage, and save energy. Moreover, the design of this movable hinge can reduce the deformation gap between the hinge installation side and the door opening side of the door body 30, improve the unevenness of the door body 30, and make the distance between the door body 30 and the box body 20 consistent at all positions.

[0046] Optionally, the refrigeration device 10 is a freezer or a refrigerator. The refrigeration device 10 also includes a compressor, an evaporator, a condenser and a throttling device connected by pipelines, which together constitute a refrigeration system of the refrigeration device 10. The refrigeration device 10 also includes a refrigerant that circulates in the pipelines of the refrigeration system for refrigeration.

[0047] The refrigeration process of the refrigeration equipment 10: the compressor compresses the low-temperature, low-pressure refrigerant gas into a high-temperature, high-pressure refrigerant gas, and then the high-temperature, high-pressure refrigerant gas is cooled into a medium-temperature, high-pressure refrigerant liquid through the condenser, and the medium-temperature, high-pressure refrigerant liquid passes through the throttling device to become a low-temperature, low-pressure refrigerant liquid, and the low-temperature, low-pressure refrigerant liquid enters the evaporator, absorbs the heat in the refrigeration space and becomes a low-temperature, low-pressure refrigerant gas, which flows back to the compressor and repeats the cycle.

[0048] Optionally, combined Figure 2 and Figure 3 As shown, the first hinge 40 includes a fixing plate 41 and a hinge shaft 42. The fixing plate 41 is connected to the box body 20. The cross section of the hinge shaft 42 is circular or fan-shaped, one end of the hinge shaft 42 is connected to the fixing plate 41, and the other end is inserted into the hinge hole 31 and can rotate and translate relative to the hinge hole 31. Among them, the cross section of the hinge hole 31 is elliptical.

[0049] One end of the hinge shaft 42 is connected to the fixing plate 41, and the other end is inserted into the hinge hole 31 and can rotate relative to the hinge hole 31. The fixing plate 41 is connected to the box body 20. In this way, the door body 30 and the box body 20 are rotatably connected through the first hinge 40. In the process of opening or closing the door body 30, the hinge shaft 42 remains stationary, and the rotation of the door body 30 drives the hinge hole 31 to rotate relative to the hinge shaft 42. It can be understood that the hinge shaft 42 is mostly in the shape of a complete cylinder or a cylinder with a notch. Therefore, the cross section of the hinge shaft 42 is mostly circular or fan-shaped. The cross section of the hinge hole 31 of the embodiment of the present disclosure is elliptical, that is, at least a moving space is reserved in the front and rear direction of the hinge hole 31. In this way, the hinge shaft 42 can move forward or backward relative to the hinge hole 31, and the process of the door body 30 deforming inward will not be blocked by the hinge shaft 42.

[0050] Optionally, the major axis of the hinge hole 31 is greater than the outer diameter of the hinge shaft 42 , and the minor axis of the hinge hole 31 is equal to the outer diameter of the hinge shaft 42 .

[0051] The long axis of the hinge hole 31 is larger than the outer diameter of the hinge shaft 42, so that the hinge shaft 42 can move in the front-to-back direction of the hinge hole 31. The short axis of the hinge hole 31 is equal to the outer diameter of the hinge shaft 42, so that when the door body 30 is closed and subjected to the pressure difference, the hinge shaft 42 can be prevented from swinging left and right in the hinge hole 31, and the hinge shaft 42 can be moved only in the front-to-back direction of the hinge hole 31 as much as possible, so as to adjust the distance between the door body 30 and the cabinet 20, improve the sealing performance of the door body 30 and the cabinet 20, reduce cold leakage, try to keep the distance between each position of the door body 30 and the cabinet 20 consistent, improve the unevenness of the door body 30, and improve the appearance of the refrigeration equipment 10, thereby improving the user experience.

[0052] Optionally, the difference between the major axis of the hinge hole 31 and the outer diameter of the hinge shaft 42 is between 1 mm and 3 mm.

[0053] When the difference between the long axis of the hinge hole 31 and the outer diameter of the hinge shaft 42 is less than 1 mm, the movable distance is too small to effectively adjust the distance between the door body 30 and the box body 20, and it is also impossible to effectively improve the unevenness of the door body 30. When the difference between the long axis of the hinge hole 31 and the outer diameter of the hinge shaft 42 is greater than 3 mm, the movable distance is too large, and the hinge shaft 42 shakes strongly when moving in the front-to-back direction of the hinge hole 31, and the door body 30 is unstable, which is prone to safety accidents.

[0054] Optionally, the difference between the major axis of the hinge hole 31 and the outer diameter of the hinge shaft 42 is 2 mm.

[0055] The difference between the long axis of the hinge hole 31 and the outer diameter of the hinge shaft 42 is designed to be 2 mm, which can not only reserve space for movement and ensure that the hinge shaft 42 can move along the front-to-back direction of the hinge hole 31 to adjust the distance between the door body 30 and the box body 20 and improve the unevenness of the door body 30, but also reduce the displacement of the hinge shaft 42 in the front-to-back direction of the hinge hole 31, reduce the shaking feeling, and improve the stability of the door body 30.

[0056] Optionally, combined Figure 4 and Figure 5 As shown, the refrigeration device 10 further includes a shaft sleeve 50 , which is embedded in the hinge hole 31 and sleeved on the outer side of the hinge shaft 42 .

[0057] Thus, the design of adding a sleeve 50 between the hinge hole 31 and the hinge shaft 42 can avoid direct contact between the hinge shaft 42 and the hinge hole 31, reduce the friction between the hinge shaft 42 and the hinge hole 31, and make the rotation and translation process of the door body 30 smoother. Moreover, adding a sleeve 50 can also reduce the front and rear displacement of the hinge shaft 42 in the hinge hole 31, reduce the shaking feeling, and improve the stability of the door body 30.

[0058] Optionally, the sleeve 50 includes a first arched portion 51 and a second arched portion 52. The first arched portion 51 is embedded in the rear side of the hinge hole 31, and includes a first side 511 and a second side 512 that are oppositely arranged. The second arched portion 52 is embedded in the front side of the hinge hole 31, and includes a third side 521 and a fourth side 522 that are oppositely arranged, the third side 521 is connected to the first side 511, and the fourth side 522 is connected to the second side 512. The first arched portion 51 and the second arched portion 52 enclose a mounting cavity 53, and the hinge shaft 42 is inserted into the mounting cavity 53 and can rotate and translate relative to the mounting cavity 53.

[0059] The third side 521 is connected to the first side 511, and the fourth side 522 is connected to the second side 512, so that the first arch portion 51 and the second arch portion 52 are connected together, the opening of the first arch portion 51 faces the second arch portion 52, and the opening of the second arch portion 52 faces the first arch portion 51, and the first arch portion 51 and the second arch portion 52 jointly enclose an installation cavity 53, and the hinge shaft 42 is located in the installation cavity 53.

[0060] During the process of opening or closing the door body 30, the hinge shaft 42 remains stationary, and the rotation of the door body 30 drives the shaft sleeve 50 to rotate relative to the hinge shaft 42, and the shaft sleeve 50 and the hinge hole 31 remain relatively still. The hinge shaft 42 and the installation cavity 53 are clearance-matched in the front-to-back direction, so that when the door body 30 is closed, under the action of the pressure difference between the inside and outside of the refrigeration equipment 10, the installation cavity 53 can move backward relative to the other end of the hinge, thereby driving the door body 30 to move toward the direction close to the cabinet 20, so as to reduce the distance between the door body 30 and the cabinet 20, improve the sealing between the door body 30 and the cabinet 20, reduce cold leakage, and save energy. Moreover, the design of this movable hinge can reduce the deformation gap between the hinge installation side and the door opening side of the door body 30, improve the unevenness of the door body 30, and make the distance between the door body 30 and the cabinet 20 consistent at all positions.

[0061] Optionally, the first side 511 is flush with the second side 512, and the third side 521 is flush with the fourth side 522. The connection between the first side 511 and the third side 521 is recessed into the installation cavity 53 to form a first limiting structure 54, and the connection between the second side 512 and the fourth side 522 is recessed into the installation cavity 53 to form a second limiting structure 55. The distance from the first limiting structure 54 to the second limiting structure 55 is less than or equal to the outer diameter of the hinge shaft 42.

[0062] In this way, the first limiting structure 54 and the second limiting structure 55 play a limiting role, limiting the displacement of the hinge shaft 42 in the left-right direction.

[0063] When the distance from the first limiting structure 54 to the second limiting structure 55 is equal to the outer diameter of the hinge shaft 42, when the door body 30 is closed and subjected to the pressure difference, the hinge shaft 42 can relatively smoothly move forward and backward through the first limiting structure 54 and the second limiting structure 55, and the hinge shaft 42 translates from the first arch portion 51 to the second arch portion 52, which can prevent the hinge shaft 42 from shaking left and right in the hinge hole 31, and try to make the hinge shaft 42 move only along the front and rear direction of the hinge hole 31 to adjust the distance between the door body 30 and the box body 20, improve the sealing performance of the door body 30 and the box body 20, reduce cold leakage, try to keep the distance between each position of the door body 30 and the box body 20 consistent, improve the unevenness of the door body 30, and enhance the appearance of the refrigeration equipment 10, thereby improving the user experience.

[0064] When the distance from the first limiting structure 54 to the second limiting structure 55 is smaller than the outer diameter of the hinge shaft 42, when the door body 30 is closed and subjected to the pressure difference, the hinge shaft 42 moves forward and backward by squeezing the first limiting structure 54 and the second limiting structure 55, and the hinge shaft 42 translates from the first arch portion 51 to the second arch portion 52 to adjust the distance between the door body 30 and the box body 20, improve the sealing performance of the door body 30 and the box body 20, reduce cold leakage, try to keep the distance between each position of the door body 30 and the box body 20 consistent, improve the unevenness of the door body 30, and enhance the appearance of the refrigeration equipment 10, thereby improving the user experience.

[0065] Optionally, the sleeve 50 is a self-lubricating material.

[0066] In this way, the shaft sleeve 50 is a self-lubricating material, which can effectively reduce the friction between the shaft sleeve 50 and the hinge shaft 42, so that the rotation and translation processes of the door body 30 are smoother.

[0067] Optionally, the sleeve 50 is made of polyformaldehyde (POM).

[0068] POM has high mechanical strength, which is very close to metal, good wear resistance and self-lubrication, good electrical insulation, and low cost. Therefore, the shaft sleeve 50 is designed to be made of POM material. Under the premise of ensuring mechanical strength close to that of metal, the friction between the shaft sleeve 50 and the hinge shaft 42 and the hinge hole 31 is smaller, and because the electrical insulation of POM material is good, there is no need to worry about the risk of the shaft sleeve 50 conducting electricity when the refrigeration device 10 leaks electricity.

[0069] Optionally, the sleeve 50 is made of polytetrafluoroethylene.

[0070] Polytetrafluoroethylene has a low friction coefficient, good self-lubrication and corrosion resistance. Therefore, the sleeve 50 is designed to be made of polytetrafluoroethylene, which has less friction with the hinge shaft 42 and the hinge hole 31, and the portion of the sleeve 50 exposed to the air is not easily corroded.

[0071] Optionally, the first hinge 40 is arranged on the upper end surface of the door body 30, and the refrigeration device 10 further includes a second hinge. The second hinge is arranged on the lower end surface of the door body 30 and is located on the same side of the door body 30 as the first hinge 40. One end of the second hinge is fixedly connected to the cabinet 20, and the other end is arranged in the hinge hole 31 and can rotate relative to the hinge hole 31 and translate in the front-rear direction.

[0072] In this way, when the door body 30 is affected by the internal and external pressure difference, the upper and lower end surfaces of the door body 30 on the hinge side can move toward the direction of the box body 20, avoiding the door body 30 tilting due to one end of the door body 30 being able to move and the other end being unable to move, improving the unevenness of the door body 30 and improving the user experience.

[0073] Optionally, hinge holes 31 are provided on the left and right sides of the door body 30, forming a left hinge hole 31 and a right hinge hole 31 respectively, and the first hinge 40 is detachably connected to the left hinge hole 31 and the right hinge hole 31. When the first hinge 40 is removed from the left hinge hole 31, it can be installed in the right hinge hole 31 to change the opening direction of the door body 30.

[0074] The left and right sides of the door body 30 are respectively provided with a left hinge hole 31 and a right hinge hole 31, and the first hinge 40 is detachably connected to the hinge hole 31. When the user requires opening the door on the left side, the first hinge 40 is installed in the right hinge hole 31; when the user requires opening the door on the right side, the first hinge 40 is installed in the left hinge hole 31.

[0075] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A refrigeration device, characterized in that: include: The box body defines the refrigeration space; The door body is openably arranged on the box body to open or close the refrigeration space and is provided with a hinge hole; A first hinge, one end of which is fixedly connected to the box body, and the other end of which is disposed in the hinge hole and can rotate relative to the hinge hole; Among them, the other end of the first hinge is clearance-matched with the hinge hole in the front-to-back direction. When the door body is closed, under the action of the pressure difference between the inside and outside of the refrigeration equipment, the hinge hole can move backward relative to the other end of the first hinge, thereby driving the door body to move toward the direction close to the box body, so as to reduce the distance between the door body and the box body.

2. The refrigeration equipment according to claim 1, characterized in that: The first hinge comprises: A fixing plate connected to the box body; The hinge shaft has a circular or fan-shaped cross section, one end of which is connected to the fixed plate, and the other end is inserted into the hinge hole and can rotate and translate relative to the hinge hole; The cross section of the hinge hole is elliptical.

3. The refrigeration equipment according to claim 2, characterized in that: The major axis of the hinge hole is greater than the outer diameter of the hinge shaft, and the minor axis of the hinge hole is equal to the outer diameter of the hinge shaft.

4. The refrigeration equipment according to claim 3, characterized in that: The difference between the major axis of the hinge hole and the outer diameter of the hinge shaft is between 1 mm and 3 mm.

5. The refrigeration equipment according to claim 2, characterized in that: Also includes: The shaft sleeve is embedded in the hinge hole and sleeved on the outer side of the hinge shaft.

6. The refrigeration device according to claim 5, characterized in that: Bushings include: A first arched portion is embedded in the rear side of the hinge hole and includes a first side and a second side that are oppositely disposed; The second arched portion is embedded in the front side of the hinge hole, and includes a third side and a fourth side that are oppositely arranged, the third side is connected to the first side, and the fourth side is connected to the second side; The first arched portion and the second arched portion form a mounting cavity, and the hinge shaft is inserted into the mounting cavity and can rotate and translate relative to the mounting cavity.

7. The refrigeration device according to claim 6, characterized in that: The first side is flush with the second side, and the third side is flush with the fourth side; the connection between the first side and the third side is recessed into the installation cavity to form a first limiting structure, and the connection between the second side and the fourth side is recessed into the installation cavity to form a second limiting structure; wherein the distance from the first limiting structure to the second limiting structure is less than or equal to the outer diameter of the hinge shaft.

8. The refrigeration device according to claim 5, characterized in that: The bushing is made of self-lubricating material.

9. The refrigeration device according to any one of claims 1 to 8, characterized in that: The first hinge is arranged on the upper end surface of the door body, and further comprises: The second hinge is arranged on the lower end surface of the door body and is located on the same side of the door body as the first hinge. One end is fixedly connected to the box body, and the other end is arranged in the hinge hole and can rotate relative to the hinge hole and translate in the front-rear direction.

10. The refrigeration device according to any one of claims 1 to 8, characterized in that: Hinge holes are provided on the left and right sides of the door body, forming a left hinge hole and a right hinge hole respectively. The first hinge is detachably connected to the left hinge hole and the right hinge hole. When the first hinge is removed from the left hinge hole, it can be installed in the right hinge hole to change the opening direction of the door body.

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