CN219036900U

CN219036900U - Refrigerating equipment

Info

Publication number: CN219036900U
Application number: CN202223398227.5U
Authority: CN
Inventors: 陈廷宇; 李琳; 林学洋; 孔洒洒
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-05-16
Anticipated expiration: 2032-12-19

Abstract

The utility model provides refrigeration equipment, and belongs to the technical field of refrigeration. Comprising the following steps: a housing formed with an accommodating chamber; the compressor is arranged in the accommodating chamber; the elastic connection structure is provided with a plurality of groups, one side of the elastic connection structure is connected with the compressor, the other side of the elastic connection structure is connected with the shell, and the compressor can be hung and installed in the shell through the elastic connection structure; wherein, the plurality of groups of elastic connection structures can be combined and installed at the top and the bottom of the compressor or can be combined and installed at the top, the bottom and the side of the compressor. According to the utility model, the elastic connecting structure is arranged, so that the compressor can be suspended in the air conditioner shell, vibration generated by the compressor can not be transmitted to the outside of the air conditioner through the mounting plate, and the noise of the air conditioner is reduced.

Description

Refrigerating equipment

Technical Field

The utility model relates to the technical field of refrigeration, in particular to refrigeration equipment.

Background

During operation of the refrigeration equipment system, the main noise is composed of internal excitation and external excitation, wherein the internal excitation refers to: the compressor and pipeline vibrations are transmitted to the outer casing through the compressor mounting plate, causing the outer casing vibrations to radiate noise, external excitation refers to: noise caused when the air conditioning system is subjected to external force.

At present, most of existing compressors are installed on a mounting plate through parts such as rubber foot pads, gaskets, sleeves and bolts, noise generated during operation of the compressors is transmitted through the mounting plate, and the whole compressor easily generates larger noise. And because the pipeline of the air conditioning system is complex, the working condition changes greatly when the air conditioning system is used, the composite frequency multiplication transmitted by the compressor is different, and the conventional damping washer is difficult to effectively reduce the noise of the air conditioner.

Disclosure of Invention

In order to overcome the problems in the related art, the present utility model provides a refrigeration apparatus.

An embodiment of the present utility model provides a refrigeration device, including:

a housing formed with an accommodating chamber;

the compressor is arranged in the accommodating chamber;

the elastic connection structure is provided with a plurality of groups, one side of the elastic connection structure is connected with the compressor, the other side of the elastic connection structure is connected with the shell, and the compressor can be hung and installed in the shell through the elastic connection structure;

wherein, the plurality of groups of elastic connection structures can be combined and installed at the top and the bottom of the compressor or can be combined and installed at the top, the bottom and the side of the compressor.

In the above-mentioned technical solution, the elastic modulus of at least one group of elastic connection structures can be adjusted.

In the technical scheme, a first preset angle a1 is formed between the elastic connecting structure and the central axis of the compressor when the elastic connecting structure is arranged at the top of the compressor, and the angle a1 is more than 30 degrees and less than 60 degrees;

when the elastic connecting structure is arranged at the bottom of the compressor, a second preset angle a2 is formed between the elastic connecting structure and the central axis of the compressor, and the angle a2 is more than 30 degrees and less than 60 degrees;

the elastic connection structure is perpendicular to the central axis of the compressor when being arranged at the side part of the compressor.

In the above technical solution, the elastic connection structure includes a first rigid connection portion for connecting the casing, a second rigid connection portion for connecting the compressor, and an elastic connection portion for damping interposed between the first rigid connection portion and the second rigid connection portion;

wherein the modulus of elasticity of the elastic connection can be adjusted.

In the above technical solution, the elastic connection portion includes a first elastic connection portion and a second elastic connection portion;

the first elastic connecting part is used for connecting the first rigid connecting part and the second rigid connecting part;

the second elastic connecting part comprises a plurality of elastic sheets, and the elastic sheets can be detachably arranged between the first rigid connecting part and the second rigid connecting part.

In the above technical solution, a first mounting position is formed on a side of the first rigid connection portion facing the second rigid connection portion, and a second mounting position is formed on a side of the second rigid connection portion facing the first rigid connection portion;

the first elastic connection portion includes a support spring mounted between the first mounting location and the second mounting location.

In the technical scheme, a plurality of support springs are arranged, and the plurality of support springs are uniformly distributed in the circumferential direction of the first installation position or the second installation position;

a spring piece installation space is formed between the plurality of support springs and the first installation position and between the plurality of support springs and the second installation position, and an installation opening is formed between the adjacent two support springs, and the spring piece can be installed in the spring piece installation space through the installation opening in a deformed mode.

In the above technical scheme, the first installation position is fixedly provided with a polish rod, the polish rod is sleeved in the supporting spring, and the free end of the polish rod penetrates through the second installation position and is in clearance fit with the second installation position.

In the above technical solution, the plurality of elastic sheets are mounted between the first rigid connection portion and the second rigid connection portion in a convex-concave fit manner.

In the technical scheme, the plurality of elastic sheets comprise a lower elastic sheet, an upper elastic sheet and a middle elastic sheet which are matched in a convex-concave manner;

the first rigid connection part is provided with a lower mounting groove matched with the lower elastic piece, the second rigid connection part is provided with an upper mounting groove matched with the upper elastic piece, the lower elastic piece is embedded in the lower mounting groove and is attached to the groove surface of the lower mounting groove, and the upper elastic piece is embedded in the upper mounting groove and is attached to the groove surface of the upper mounting groove.

In the technical scheme, the elastic sheet is an annular foam metal sheet.

In the above technical scheme, the refrigeration equipment is an air conditioner, and the air conditioner comprises an air conditioner external unit serving as a shell and an air conditioner internal unit connected with the air conditioner external unit.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects:

1. according to the embodiment of the utility model, the compressor can be suspended in the air conditioner shell through the elastic connection structure, and vibration generated by the compressor cannot be transmitted to the outside of the air conditioner through the compressor mounting plate, so that the noise of the air conditioner is reduced.

2. According to the embodiment of the utility model, the elastic connection structure can be adjusted according to the excitation frequency of the compressor, so that the elastic connection structure generates natural frequency different from the excitation frequency of the compressor, and the excitation frequency of the compressor is not overlapped with the natural frequency, thereby effectively preventing the compressor from generating resonance condition and effectively reducing air conditioning noise.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

FIG. 1 is a schematic view of a first assembled configuration of a compressor in an embodiment of a refrigeration apparatus according to the present utility model;

FIG. 2 is a schematic view of a second assembled configuration of a compressor in an embodiment of a refrigeration apparatus according to the present utility model;

FIG. 3 is a schematic front view of an elastic connection structure of a refrigeration apparatus according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of an elastic connection structure in an embodiment of the refrigeration apparatus of the present utility model;

FIG. 5 is an enlarged schematic view of the structure shown at A in FIG. 4;

FIG. 6 is an enlarged schematic view of the structure shown at B in FIG. 4;

FIG. 7 is a schematic three-dimensional structure of a lower spring plate in an embodiment of the refrigeration equipment according to the present utility model;

FIG. 8 is a schematic view of a three-dimensional structure of an upper dome in an embodiment of the refrigeration device according to the present utility model;

fig. 9 is a schematic three-dimensional structure of an intermediate dome in an embodiment of the refrigeration apparatus according to the present utility model.

Wherein: 1-a housing; a 2-compressor; 3-elastic connection structure; 31-a first rigid connection; 311-first installation site; 3111-lower mounting slots; 32-a second rigid connection; 321-a second installation site; 3211-upper mounting groove; 33-elastic connection; 331-supporting springs; 332-shrapnel; 3321-lower spring plate; 3322-upper spring plate; 3323—middle shrapnel; 34-polish rod.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with aspects of the utility model as detailed in the accompanying claims.

At present, most of existing compressors are installed on a mounting plate through parts such as rubber foot pads, gaskets, sleeves and bolts, noise generated during operation of the compressors is transmitted through the mounting plate, and the whole compressor easily generates larger noise. And because the pipeline of the air conditioning system is complex, the working condition changes greatly when the air conditioning system is used, the composite frequency multiplication transmitted by the compressor is different, and the conventional damping washer is difficult to effectively reduce the noise of the air conditioner. According to the embodiment of the utility model, the compressor can be suspended in the air conditioner shell through the elastic connection structure, and vibration generated by the compressor cannot be transmitted to the outside of the air conditioner through the compressor mounting plate, so that the noise of the air conditioner is reduced. Meanwhile, the elastic connection structure in the embodiment of the utility model can be adjusted according to the excitation frequency of the compressor so that the elastic connection structure generates natural frequency different from the excitation frequency of the compressor, and the excitation frequency of the compressor is not overlapped with the natural frequency, thereby effectively preventing the compressor from generating resonance condition and effectively reducing air conditioning noise.

The technical solutions of the present embodiment are described in detail below with reference to fig. 1 to 9, and the following implementation manners and embodiments may be combined with each other without conflict.

Examples

An embodiment of the present utility model provides a refrigeration apparatus as shown in fig. 1 and fig. 2, including:

a housing 1 formed with an accommodating chamber;

a compressor 2 disposed in the accommodation chamber;

the elastic connection structure 3 is provided with a plurality of groups, one side of the elastic connection structure 3 is connected with the compressor 2, the other side of the elastic connection structure 3 is connected with the shell 1, and the compressor 2 can be hung and installed in the shell 1 through the elastic connection structure 3;

specifically, the plurality of sets of elastic connection structures 3 may be mounted to the top and bottom of the compressor 2 in combination or may be mounted to the top, bottom and side of the compressor 2 in combination.

According to the embodiment of the utility model, the elastic connecting structure 3 is arranged to suspend the compressor 2 in the air conditioner shell 1, so that vibration generated by the compressor 2 is not transmitted to the outside of the air conditioner through the compressor mounting plate, and the noise of the air conditioner is reduced.

As shown in fig. 1 and 2, the elastic connection structure 3 is installed at the top, bottom and side of the compressor 2 in the embodiment of the present utility model. Of course, in some embodiments, not shown, the elastic connection structure 3 may also be installed only at the top and bottom of the compressor 2.

According to the embodiment of the utility model, the elastic connection structures 3 are arranged at the top and the bottom of the compressor 2, so that the vertical vibration force generated by the compressor 2 can be absorbed, the elastic connection structures 3 are arranged at the side parts of the compressor 2, so that on one hand, the rotation direction vibration force generated by the compressor 2 can be absorbed, on the other hand, the centering property of the compressor 2 in use can be kept, the inclination of the compressor 2 in operation is avoided, and on the other hand, the deformation of the elastic connection structures at the top and the bottom of the compressor 2 can be reduced, and the service life of the elastic connection structures 3 is prolonged.

It should be noted that the elastic connection structures 3 at the top and bottom of the compressor 2 should have a low elastic modulus to meet the requirement of large displacement of the compressor in the vertical direction, and the elastic connection structures 3 at the side of the compressor 2 should meet the operating frequency range of the compressor 2 to effectively attenuate the rotational vibration of the compressor 2.

In the embodiment of the present utility model, the number of the elastic connection structures 3 mounted on a certain portion of the compressor 2 is not limited, and in actual mounting, the number of the elastic connection structures 3 may be specifically selected according to the volume and weight of the compressor. Preferably, the number of the elastic connection structures 3 provided at the top, bottom and side of the compressor 2 is four, wherein the four elastic connection structures 3 are uniformly distributed in the circumferential direction of the compressor 2.

In any of the above embodiments, the modulus of elasticity of at least one set of elastic attachment structures 3 may be adjusted.

Specifically, the elastic connection structure 3 in the embodiment of the utility model can also be adjusted according to the excitation frequency of the compressor, so that the elastic connection structure 3 generates a natural frequency different from the excitation frequency of the compressor 2, and the excitation frequency of the compressor 2 is not overlapped with the natural frequency of the elastic connection structure 3, thereby effectively preventing the compressor from generating resonance condition and further reducing the noise of the air conditioner.

In any of the above embodiments, when the elastic connection structure 3 is mounted on the top of the compressor 2, a first preset angle a1 is formed between the elastic connection structure and the central axis of the compressor, wherein a 30 ° < a1 < 60 °, so that the compressor has a certain elasticity in the vertical and horizontal directions, and noise and vibration transmitted to the shell are reduced. Preferably, a1 has a value of 45 °;

when the elastic connecting structure 3 is arranged at the bottom of the compressor 2, a second preset angle a2 is formed between the elastic connecting structure and the central axis of the compressor 2, wherein a2 is more than 30 degrees and less than 60 degrees, so that the compressor has certain elasticity in the vertical and horizontal directions, and noise and vibration conducted to the shell are reduced. Preferably, a2 has a value of 45 °;

the elastic connection structure 3 is perpendicular to the central axis of the compressor 2 when it is mounted on the side of the compressor 2.

In the embodiment of the utility model, the elastic connection structures 3 are arranged at the top and the bottom of the compressor 2, so that the vertical vibration force generated by the compressor 2 can be absorbed, and the elastic connection structures are arranged at the side parts of the compressor, so that the rotary vibration force generated by the compressor 2 can be absorbed.

In any of the above embodiments, as shown in fig. 4, the elastic connection structure 3 includes a first rigid connection portion 31 for connecting to the casing 1, a second rigid connection portion 32 for connecting to the compressor 2, and an elastic connection portion 33 interposed between the first rigid connection portion 31 and the second rigid connection portion 32 for damping, specifically, the first rigid connection portion 31 is fixedly connected to the casing 1 by a buckle, and the second rigid connection portion 32 is fixedly connected to the compressor 2 by a buckle, wherein the first rigid connection portion 31 and the second rigid connection portion 32 are steel pipes;

wherein the modulus of elasticity of the elastic connection 33 can be adjusted.

Specifically, the elastic connection portion 33 includes a first elastic connection portion and a second elastic connection portion;

the first elastic connection portion is used for connecting the first rigid connection portion 31 and the second rigid connection portion 32, the second elastic connection portion includes a plurality of elastic pieces 332, and the plurality of elastic pieces 332 are detachably mounted between the first rigid connection portion 31 and the second rigid connection portion 32. The damping of the elastic connection structure 3 can be changed by changing the number of the elastic pieces 332 on the elastic connection portion 33, and designing the elastic connection structure 3 corresponding to the damping can prevent the noise problem caused by the resonance between the compressor 2 and the elastic connection structure 3.

In detail, as shown in fig. 4 to 6, a first mounting position 311 is formed on a side of the first rigid connection part 31 facing the second rigid connection part 32, and a second mounting position 321 is formed on a side of the second rigid connection part 32 facing the first rigid connection part 31;

wherein the first elastic connection portion includes a support spring 331 mounted between the first mounting location 311 and the second mounting location 321. The elastic sheet 332 can be conveniently disassembled and assembled by arranging the supporting spring 331 between the first mounting position 311 and the second mounting position 321. When the number of the elastic pieces 332 to be mounted needs to be reduced, the second rigid connection portion 32 can be pushed to enlarge the distance between the first rigid connection portion 31 and the second rigid connection portion 32, at this time, one or more of the elastic pieces 332 can be taken out, and the remaining elastic pieces 332 can be attached to the first rigid connection portion 31 and the second rigid connection portion 32 again under the self-resetting performance, so that the falling of the elastic pieces 332 cannot occur. In contrast, when the number of installed elastic pieces 332 needs to be increased, the above operation is repeated again to install the elastic pieces 332 between the first rigid connection portions 31 and the second rigid connection portions 32.

As can be seen from the above, when the number of the elastic pieces 332 between the first rigid connection portion 31 and the second rigid connection portion 32 is small, the compressed amount of the elastic pieces 332 is small, and when the number of the elastic pieces between the first rigid connection portion 31 and the second rigid connection portion 32 is large, the compressed amount of the elastic pieces 332 is large, and the elastic modulus of the elastic connection structure 3 is large. Thereby realizing the effect that the elastic modulus of the elastic connecting structure 3 can be changed by changing the number of the elastic sheets 322.

It should be noted that, during the process of assembling and disassembling the spring piece 332, the minimum number of the spring pieces 332 should ensure that the spring piece 332 keeps contact with the first rigid connection portion 31 and the second rigid connection portion 32 when no deformation occurs, so as to avoid the spring piece 332 from falling off from between the first rigid connection portion 31 and the second rigid connection portion 32.

In any of the above embodiments, as shown in fig. 3 to 6, the plurality of supporting springs 331 are provided, and the plurality of supporting springs 331 are uniformly distributed in the circumferential direction of the first mounting location 311 or the second mounting location 321;

wherein, a spring plate installation space is formed between the plurality of supporting springs 331 and the first installation position 311, the second installation position 321, and an installation opening is formed between two adjacent supporting springs 331, and the spring plate 332 can be deformed and installed in the spring plate installation space through the installation opening. Namely, when the elastic sheet 332 is disassembled, the elastic connection structure 3 is not required to be disassembled, and the elastic sheet 332 is only required to be pinched and deformed and then is placed in the elastic sheet installation space through the installation opening formed between the two adjacent supporting springs 331.

Further, as shown in fig. 3 and 4, in order to improve the stability of the supporting spring 331 when connecting the first rigid connection portion 31 and the second rigid connection portion 32 and improve the overall elastic supporting effect of the elastic connection structure 3, in the embodiment of the utility model, a polish rod 34 is fixedly disposed on the first mounting position 311 of the first rigid connection portion 31, wherein the polish rod 34 is sleeved in the supporting spring 331, and the free end of the polish rod extends through the second mounting position 321 and is in clearance fit with the second mounting position 321. Therefore, the first rigid connection part 31 and the second rigid connection part 32 can be more stable after connection, and the elastic connection structure 3 can only deform along the axes of the first rigid connection part 31 and the second rigid connection part 32 when the elastic connection structure is elastically deformed, so that the elastic supporting effect of the elastic connection structure 3 is improved.

In any of the above embodiments, as shown in fig. 4 to 6, in order to further improve the stability when the elastic piece 332 is mounted between the first rigid connection portion 31 and the second rigid connection portion 32, a plurality of elastic pieces 332 are mounted between the first rigid connection portion 31 and the second rigid connection portion 32 in a male-female fit.

Specifically, as shown in fig. 5 and 6, the plurality of elastic pieces 332 includes a lower elastic piece 3321, an upper elastic piece 3322 and a middle elastic piece 3323 that are in convex-concave fit;

the first rigid connection portion 31 is provided with a lower mounting groove 3111 adapted to the lower elastic piece 3321, the second rigid connection portion 32 is provided with an upper mounting groove 3211 adapted to the upper elastic piece 3322, the lower elastic piece 3321 is embedded in the lower mounting groove 3111 and is attached to a groove surface of the lower mounting groove 3111, and the upper elastic piece 3322 is embedded in the upper mounting groove 3211 and is attached to a groove surface of the upper mounting groove 3211.

More specifically, as shown in fig. 7, the lower spring 3321 is an annular spring with an annular groove at the top;

as shown in fig. 8, the upper spring 3322 is an annular spring with an annular convex hull at the bottom;

as shown in fig. 9, the middle spring 3323 is an annular spring with an annular groove at the top and an annular convex hull at the bottom.

Preferably, the spring 332 is a ring-shaped foam metal sheet.

In any of the above embodiments, the refrigeration apparatus is an air conditioner, wherein the air conditioner includes an air conditioner external unit as the housing 1 and an air conditioner internal unit connected to the air conditioner external unit.

The elastic connection assembly 3 can be used to improve the actual system configuration or noise anomalies caused by system frequency variation after sales.

For example, when the compressor system is matched, the problem of six times of frequency of 62HZ occurs, the mode knocking solid frequency of the elastic connection structure 3 is about 360HZ, six times of frequency noise is just caused by the fact that the mode knocking solid frequency is about 360HZ, and at the moment, the elastic modulus of the elastic connection structure 3 can be changed by changing the installation number of the elastic sheets 332, so that the mode of the elastic connection structure 3 can be increased or reduced to avoid 360HZ resonance.

In summary, by arranging the above arrangement of the compressor 2 in the air conditioner, vibration generated by the compressor 2 is not transmitted to the outside of the air conditioner through the compressor mounting plate, and noise of the air conditioner is reduced. Meanwhile, in the actual installation test or after-sales maintenance process, the elastic modulus of the elastic connection structure 3 can be adjusted according to the excitation frequency of the compressor 2 so that the elastic connection structure 3 generates natural frequency different from the excitation frequency of the compressor 2, and the excitation frequency of the compressor is not overlapped with the natural frequency, thereby effectively preventing the compressor 2 from generating resonance conditions and further reducing the noise and vibration of the air conditioner.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. A refrigeration appliance, comprising:

a housing (1) in which an accommodating chamber is formed;

a compressor (2) disposed within the receiving chamber;

the elastic connection structures (3) are provided with a plurality of groups, one end of each elastic connection structure (3) is connected with the corresponding compressor (2), the other end of each elastic connection structure is connected with the corresponding shell (1), and the corresponding compressor (2) can be hung and installed in the corresponding shell (1) through the corresponding elastic connection structure (3);

wherein a plurality of groups of the elastic connection structures (3) may be mounted to the top and bottom of the compressor (2) in combination or may be mounted to the top, bottom and side of the compressor (2) in combination.

2. A refrigerating apparatus as claimed in claim 1, wherein the elastic modulus of at least one set of said elastic connection structures (3) is adjustable.

3. Refrigeration appliance according to claim 2, characterized in that the elastic connection structure (3) forms a first preset angle a1 with the central axis of the compressor (2) when mounted on top of the compressor, 30 ° < a1 < 60 °;

when the elastic connecting structure (3) is arranged at the bottom of the compressor (2), a second preset angle a2 is formed between the elastic connecting structure and the central axis of the compressor (2), wherein a2 is more than 30 degrees and less than 60 degrees;

the elastic connection structure (3) is perpendicular to the central axis of the compressor (2) when being arranged on the side part of the compressor (2).

4. A refrigeration appliance according to any one of claims 1 to 3, wherein the elastic connection structure (3) comprises a first rigid connection portion (31) for connecting the shell (1), a second rigid connection portion (32) for connecting the compressor (2), and an elastic connection portion (33) interposed between the first rigid connection portion (31) and the second rigid connection portion (32) for damping vibrations;

wherein the elastic modulus of the elastic connection (33) can be adjusted.

5. A refrigerating apparatus as claimed in claim 4, wherein said elastic connection (33) comprises a first elastic connection and a second elastic connection;

the first elastic connecting part is used for connecting the first rigid connecting part (31) and the second rigid connecting part (32);

the second elastic connection part comprises a plurality of elastic sheets (332), and the elastic sheets (332) can be detachably arranged between the first rigid connection part (31) and the second rigid connection part (32).

6. A refrigerating apparatus according to claim 5, wherein a first mounting location (311) is formed on a side of the first rigid connection portion (31) facing the second rigid connection portion (32), and a second mounting location (321) is formed on a side of the second rigid connection portion (32) facing the first rigid connection portion (31);

the first elastic connection portion includes a support spring (331) mounted between the first mounting location (311) and the second mounting location (321).

7. A refrigeration appliance according to claim 6, wherein a plurality of said support springs (331) are provided, a plurality of said support springs (331) being evenly distributed in the circumferential direction of said first mounting location (311) or second mounting location (321);

a plurality of supporting springs (331) with be formed with shell fragment installation space and adjacent two between supporting springs (331) between first installation position (311), second installation position (321), shell fragment (332) can be warp pass through install in the shell fragment installation space.

8. Refrigeration device according to claim 6 or 7, characterized in that a polish rod (34) is fixedly arranged on the first mounting position (311), the polish rod (34) is sleeved in the supporting spring (331) and the free end of the polish rod penetrates through the second mounting position (321) and is in clearance fit with the second mounting position (321).

9. A refrigeration appliance according to any one of claims 5 to 7, characterized in that a plurality of said elastic sheets (332) are mounted in a male-female fit between said first rigid connection portion (31) and said second rigid connection portion (32).

10. The refrigeration appliance according to claim 9, wherein a plurality of said spring plates (332) comprises a lower spring plate (3321), an upper spring plate (3322) and an intermediate spring plate (3323) which are in a convex-concave fit;

the first rigid connection part (31) is provided with a lower mounting groove (3111) matched with the lower elastic piece (3321), the second rigid connection part (32) is provided with an upper mounting groove (3211) matched with the upper elastic piece (3322), the lower elastic piece (3321) is embedded in the lower mounting groove (3111) and is attached to the groove surface of the lower mounting groove (3111), and the upper elastic piece (3322) is embedded in the upper mounting groove (3211) and is attached to the groove surface of the upper mounting groove (3211).

11. A refrigeration appliance according to claim 9, characterized in that the elastic sheet (332) is a ring-shaped foam metal sheet.

12. The refrigeration unit as recited in claim 11 wherein said refrigeration unit is an air conditioner including an air conditioner external unit as said housing and an air conditioner internal unit connected to said air conditioner external unit.