Equipment vibration reduction structure and compressor assembly with same

Abstract

The invention discloses an equipment vibration reduction structure and a compressor assembly with the equipment vibration reduction structure, the equipment vibration reduction structure is used for supporting equipment to be subjected to vibration reduction, and the equipment vibration reduction structure comprises a mounting plate, a vibration reduction plate and a vibration reduction plate, and the variable-diameter spring is arranged between the mounting plate and the equipment to be subjected to vibration reduction. The equipment vibration reduction structure has the advantages of being good in vibration reduction effect, high in reliability and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of manufacturing compression equipment, and more particularly, to a vibration damping structure for equipment and a compressor assembly having the same. Background Art

[0002] The main reason for the noise generated by a heat pump unit is the vibration of the compressor. Household heat pump units are installed on the roof or suspended on the exterior wall, and have relatively high requirements for noise reduction. Commercial heat pump units are installed in a cluster manner, and the noise of multiple heat pump units is superimposed, further increasing the requirements for noise reduction.

[0003] In the related art, for vibration damping of equipment that generates vibration such as a compressor, a rubber vibration damping pad is used, but the vibration isolation effect of the rubber vibration damping pad is limited, especially for high-power compressors. When the vibration of the compressor is transmitted to the sheet metal structure of the chassis, it is easy to cause resonance of the sheet metal structure. Moreover, for a variable-frequency unit, the vibration characteristics of the compressor change with the frequency, and the possibility of the vibration energy of the compressor causing sheet metal resonance is greater, which not only results in relatively high noise, but also may affect the reliability of the heat pump unit. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a vibration damping structure for equipment, which has advantages such as good vibration damping effect and strong reliability.

[0005] The present invention also provides a compressor assembly having the vibration damping structure for equipment.

[0006] To achieve the above object, according to an embodiment of the first aspect of the present invention, a vibration damping structure for equipment is provided for supporting equipment to be vibration-damped. The vibration damping structure for equipment includes: a mounting plate, on which the equipment to be vibration-damped is mounted; a variable-diameter spring, which is disposed between the mounting plate and the equipment to be vibration-damped.

[0007] The vibration damping structure for equipment according to the embodiment of the present invention has advantages such as good vibration damping effect and strong reliability.

[0008] In addition, the vibration damping structure for equipment according to the above embodiment of the present invention may further have the following additional technical features:

[0009] According to an embodiment of the present invention, the variable-diameter spring is compressed between the mounting plate and the equipment to be vibration-damped.

[0010] According to an embodiment of the present invention, the diameter of the variable-diameter spring gradually increases from top to bottom.

[0011] According to an embodiment of the present invention, the diameter of the variable-diameter spring gradually increases from the middle to the upper and lower ends.

[0012] According to an embodiment of the present invention, the equipment vibration damping structure further includes: an upper vibration damping pad provided on the equipment to be vibration damped, with the upper end of the variable-diameter spring abutted against the upper vibration damping pad; and a lower vibration damping pad provided on the mounting plate, with the lower end of the variable-diameter spring abutted against the lower vibration damping pad.

[0013] According to an embodiment of the present invention, the equipment to be vibration damped is provided with feet, the feet are provided with through holes, the mounting plate is provided with mounting holes, bolts are fitted in the through holes and the mounting holes, nuts are threadedly fitted on the bolts, the nuts are located above the feet, an axial limiting sleeve is sleeved outside the bolts, the upper end of the axial limiting sleeve abuts against the nut and the lower end abuts against the mounting plate, and the variable-diameter spring, the upper vibration damping pad and the lower vibration damping pad are sleeved outside the axial limiting sleeve.

[0014] According to an embodiment of the present invention, the upper vibration damping pad includes: an upper vibration damping pad main body located below the feet, with the upper end of the variable-diameter spring abutted against the lower surface of the upper vibration damping pad main body; an upper positioning portion clamped between the nut and the feet; and a connecting portion fitted in the through hole and connected to the upper vibration damping pad main body and the upper positioning portion respectively; the lower vibration damping pad includes: a lower vibration damping pad main body located above the mounting plate, with the lower end of the variable-diameter spring abutted against the upper surface of the lower vibration damping pad main body; and a frustum portion with the lower end connected to the lower vibration damping pad main body, the diameter of the frustum portion gradually decreasing from bottom to top, and the variable-diameter spring located radially outside the frustum portion.

[0015] According to an embodiment of the present invention, there are multiple feet which are arranged at intervals along the circumference of the equipment to be vibration damped.

[0016] According to an embodiment of the present invention, the equipment vibration damping structure further includes a bottom plate, the mounting plate is mounted on the bottom plate, and a bottom plate vibration damping pad is provided between the bottom plate and the mounting plate.

[0017] According to an embodiment of the present invention, the bottom plate and the mounting plate are connected by screws, and the bottom plate and the mounting plate jointly press the bottom plate vibration damping pad.

[0018] According to an embodiment of the present invention, the opposite edges of the mounting plate are provided with upward flanges, the bottom plate vibration damping pad includes a horizontal portion and a vertical portion, the horizontal portion is clamped between the mounting plate and the bottom plate, and the vertical portion abuts against the upward flanges.

[0019] According to an embodiment of the present invention, the equipment vibration damping structure further includes a liquid storage tank, which is installed on the bottom plate and connected to the equipment to be vibration-damped through a conduit, and at least a part of the conduit is a flexible hose.

[0020] According to an embodiment of the second aspect of the present invention, a compressor assembly is provided, which includes the equipment vibration damping structure according to the embodiment of the first aspect of the present invention.

[0021] The compressor assembly according to the embodiment of the present invention has the advantages of good vibration damping effect and strong reliability by using the equipment vibration damping structure according to the embodiment of the first aspect of the present invention.

[0022] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0023] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0024] Figure 1 is a schematic structural diagram of the equipment vibration damping structure according to the embodiment of the present invention.

[0025] Figure 2 is a partial cross-sectional view of the equipment vibration damping structure according to the embodiment of the present invention.

[0026] Figure 3 is a cross-sectional view of the variable-diameter spring of the equipment vibration damping structure according to a specific embodiment of the present invention.

[0027] Figure 4 is a cross-sectional view of the variable-diameter spring of the equipment vibration damping structure according to another specific embodiment of the present invention.

[0028] Reference Numerals: Equipment Vibration Damping Structure 1, Mounting Plate 10, Upward Flange 11, Equipment to be Vibration-damped 20, Foot 21, Variable-diameter Spring 30, Upper Vibration Damping Pad 40, Lower Vibration Damping Pad 50, Bolt 61, Nut 62, Axial Limiting Sleeve 70, Bottom Plate 80, Bottom Plate Vibration Damping Pad 90, Horizontal Portion 91, Vertical Portion 92, Liquid Storage Tank 100, Conduit 110. Detailed Description of the Embodiments

[0029] This application is made based on the inventor's discovery and recognition of the following facts and problems:

[0030] In the related art, for vibration damping of devices that generate vibration such as compressors, rubber vibration damping pads are used. However, the vibration isolation effect of rubber vibration damping pads is limited, especially for high-power compressors. When the vibration of the compressor is transmitted to the sheet metal structure of the chassis, it is easy to cause resonance of the sheet metal structure. Moreover, for variable-frequency units, the vibration characteristics of the compressor change with frequency, and the possibility of the vibration energy of the compressor causing sheet metal resonance is greater, which not only results in relatively high noise but also may affect the reliability of the heat pump unit.

[0031] In some vibration damping structures of the related art, linear springs are used as vibration damping elements. Although they can achieve a certain vibration damping effect, since linear springs can only suppress vibration in the compression direction, and the vibration form of the compressor is complex, in addition to axial vibration, it also includes radial and torsional vibrations. It is difficult for linear springs to suppress vibrations other than in the compression direction, and the elastic force acting in a single direction may cause uneven stress on the pipeline and affect the reliability of the pipeline.

[0032] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The vibration damping structure 1 of the device according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0036] As Figures 1-4 shown, the vibration damping structure 1 of the device according to an embodiment of the present invention is used to support the device 20 to be vibration-damped.

[0037] The vibration damping structure 1 of the device includes a mounting plate 10 and a variable-diameter spring 30.

[0038] The device 20 to be vibration-damped is mounted on the mounting plate 10. The variable-diameter spring 30 is provided between the mounting plate 10 and the device 20 to be vibration-damped.

[0039] Specifically, as Figure 3 shown, when the variable-diameter spring 30 is compressed, an elastic force inclined to the axial direction will be generated. The elastic force inclined to the axial direction can simultaneously generate component forces in the axial and radial directions, thereby providing support forces in the axial and radial directions for the device 20 to be vibration-damped. As the compression amount of the variable-diameter spring 30 increases, while the elastic force increases and the axial component force increases, the helix angle a also becomes larger accordingly, so that the radial support force also becomes larger. When facing the situation of excessive amplitude or torsional impact force of the device 20 to be vibration-damped, effective vibration damping can be achieved.

[0040] For the vibration damping structure 1 of the device according to an embodiment of the present invention, by providing the variable-diameter spring 30, compared with the method of using vibration damping pads in the related art, a better vibration damping effect can be achieved, and vibration transmission to the sheet metal structure to form resonance can be avoided.

[0041] Moreover, by providing the variable-diameter spring 30, compared with the method of using a linear spring, when the variable-diameter spring 30 is compressed, an elastic force F inclined to the axial direction will be generated. The elastic force inclined to the axial direction can simultaneously generate component forces in the axial and radial directions, thereby providing support forces in the axial and radial directions for the device 20 to be vibration-damped. And as the compression amount of the variable-diameter spring 30 increases, while the elastic force increases and the axial component force increases, the radial support force also becomes larger. When facing the situation of excessive amplitude or torsional impact force of the device 20 to be vibration-damped, effective vibration damping can be achieved, so that not only axial vibration can be damped, but also radial and torsional vibrations can be suppressed, and the vibration damping effect on the device 20 to be vibration-damped can be improved.

[0042] In addition, by providing the variable-diameter spring 30, compared with the method of using a linear spring in the related art, the axial, radial and torsional vibrations of the device 20 to be vibration-damped can be comprehensively suppressed, and the reliability of the pipeline can be improved by avoiding the influence of the single-direction elastic force when using a linear spring on the reliability of the pipeline.

[0043] Therefore, the vibration damping structure 1 of the device according to an embodiment of the present invention has advantages such as good vibration damping effect and strong reliability.

[0044] The vibration damping structure 1 of the device according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings.

[0045] In some specific embodiments of the present invention, as Figures 1-4 shown, the vibration damping structure 1 of the device according to an embodiment of the present invention includes a mounting plate 10 and a stepped spring 30.

[0046] Advantageously, the stepped spring 30 is compressed between the mounting plate 10 and the device to be vibration-damped 20. In this way, a certain compression amount can be maintained in the stepped spring 30 when the device to be vibration-damped 20 vibrates, so that a certain elastic force is generated in the stepped spring 30, providing axial and radial supporting forces for the device to be vibration-damped 20 and suppressing multi-directional vibrations of the device to be vibration-damped 20.

[0047] Specifically, as Figure 1 and Figure 2 shown, the device to be vibration-damped 20 is located above the mounting plate 10 (the up-and-down direction is as shown by the arrow in the figure). In this way, the gravity direction of the device to be vibration-damped 20 can directly act on the stepped spring 30 and the mounting plate 10, avoiding the influence of inconsistent gravity direction and the axial direction of the stepped spring 30 on the vibration damping effect.

[0048] In some embodiments, as Figure 3 shown, the diameter of the stepped spring 30 gradually increases from top to bottom. In this way, an elastic force inclined to the axial direction of the stepped spring 30 can be generated, forming axial and radial component forces, so as to achieve the suppression of vibrations in multiple directions.

[0049] In some other embodiments, as Figure 4 shown, the diameter of the stepped spring 30 gradually increases from the middle to the upper and lower ends. In this way, an elastic force inclined to the axial direction of the stepped spring 30 can also be generated, forming axial and radial component forces, so as to achieve the suppression of vibrations in multiple directions.

[0050] More advantageously, as Figure 2 shown, the vibration damping structure 1 of the device further includes an upper vibration damping pad 40 and a lower vibration damping pad 50. The upper vibration damping pad 40 is arranged on the device to be vibration-damped 20, and the upper end of the stepped spring 30 abuts against the upper vibration damping pad 40. The lower vibration damping pad 50 is arranged on the mounting plate 10, and the lower end of the stepped spring 30 abuts against the lower vibration damping pad 50. In this way, a multi-stage vibration damping structure can be realized by using the different vibration damping properties of the spring and the vibration damping pads. On the one hand, it can further prevent vibrations from being transmitted to the mounting plate 10 and further improve the overall vibration damping effect of the vibration damping structure 1 of the device. On the other hand, it can avoid the direct contact between the stepped spring 30 and the device to be vibration-damped 20 and the mounting plate 10, and avoid the generation of noise due to vibrations between the stepped spring 30 and the device to be vibration-damped 20 and between the stepped spring 30 and the mounting plate 10, thereby further improving the overall vibration damping and noise reduction effect of the vibration damping structure 1 of the device.

[0051] More specifically, as Figure 1 and Figure 2 shown, the equipment 20 to be vibration-damped is provided with feet 21, the feet 21 are provided with through holes, the mounting plate 10 is provided with mounting holes, bolts 61 are fitted in the through holes and the mounting holes, nuts 62 are in threaded fit with the bolts 61, the nuts 62 are located above the feet 21, an axially limiting sleeve 70 is sleeved outside the bolts 61, the upper end of the axially limiting sleeve 70 abuts against the nut 62 and the lower end abuts against the mounting plate 10, and the variable-diameter spring 30, the upper vibration damping pad 40 and the lower vibration damping pad 50 are arranged outside the axially limiting sleeve 70. It should be understood here that the tighter the nut 62 is screwed, the greater the compression amount generated by the variable-diameter spring 30 and the greater the initial elastic force. The length of the axially limiting sleeve 70 can be adjusted according to the requirements of the vibration damping effect. Those skilled in the art can adjust the length of the axially limiting sleeve 70 according to actual needs, big data, calculations, etc. In this way, the variable-diameter spring 30 can be compressed by screwing the nut 62 tightly, and the axially limiting sleeve 70 is used to limit the tightening degree of the nut 62, so that the compression amount of the variable-diameter spring 30 is kept consistent with the predetermined compression amount, thereby facilitating the achievement of the best vibration damping effect. Arranging the variable-diameter spring 30, the upper vibration damping pad 40 and the lower vibration damping pad 50 outside the axially limiting sleeve 70 can position and restrain the variable-diameter spring 30, the upper vibration damping pad 40 and the lower vibration damping pad 50 by using the bolts 61, and avoid tilting and deformation, which may affect the vibration damping effect.

[0052] Furthermore, as Figure 2 shown, the upper vibration damping pad 40 includes an upper vibration damping pad main body, an upper positioning part and a connecting part. The upper vibration damping pad main body is located below the feet 21, and the upper end of the variable-diameter spring 30 abuts against the lower surface of the upper vibration damping pad main body. The upper positioning part is clamped between the nut 62 and the feet 21. The connecting part is fitted in the through hole and is respectively connected to the upper vibration damping pad main body and the upper positioning part. This can not only facilitate the positioning and installation of the upper vibration damping pad 40, but also avoid the direct contact between the nut 62 and the feet 21, which may generate vibration noise, and avoid the direct contact between the bolt 61 and the feet 21, which may generate vibration noise.

[0053] Even further, the lower vibration damping pad 50 includes a lower vibration damping pad main body and a frustum part. The lower vibration damping pad main body is located above the mounting plate 10, and the lower end of the variable-diameter spring 30 abuts against the upper surface of the lower vibration damping pad main body. The lower end of the frustum part is connected to the lower vibration damping pad main body, the diameter of the frustum part gradually decreases from bottom to top, and the variable-diameter spring 30 is located radially outside the frustum part. This can further perform vibration damping and buffering by using the frustum part after the variable-diameter spring 30 generates a large compression, thereby further improving the vibration damping effect.

[0054] Optionally, as Figure 1As shown, there are multiple feet 21 which are arranged at intervals along the circumferential direction of the equipment 20 to be vibration-damped. Specifically, there can be four feet 21. This can make the force on the equipment 20 to be vibration-damped more uniform, avoid insufficient local vibration-damping effect, and also avoid affecting the reliability of the pipeline due to uneven force.

[0055] Figure 1 and Figure 2 Fig. shows a device vibration-damping structure 1 according to some examples of the present invention. As Figure 1 and Figure 2 shown, the device vibration-damping structure 1 further includes a bottom plate 80, the mounting plate 10 is mounted on the bottom plate 80, and a bottom plate vibration-damping pad 90 is provided between the bottom plate 80 and the mounting plate 10. Specifically, there can be multiple bottom plate vibration-damping pads 90 which are arranged at intervals. This can use the bottom plate vibration-damping pad 90 to suppress the vibration of the mounting plate 10 from being transmitted to the bottom plate 80 and avoid causing resonance of the bottom plate 80, forming multi-stage vibration damping for the equipment 20 to be vibration-damped, thereby further improving the overall vibration-damping and noise-reducing effect of the device vibration-damping structure 1.

[0056] Specifically, the bottom plate 80 and the mounting plate 10 are connected by screws (not shown in the figure), and the bottom plate 80 and the mounting plate 10 jointly press the bottom plate vibration-damping pad 90. Specifically, when the screws are not tightened, there can be a gap between the bottom plate vibration-damping pad 90 and the mounting plate 10, and after the screws are tightened, the mounting plate 10 is in close contact with the bottom plate vibration-damping pad 90. This can make the bottom plate vibration-damping pad 90 generate a certain compression amount after the screws are tightened, improve the vibration-damping effect of the bottom plate vibration-damping pad 90, and thereby further improve the vibration-damping effect of the device vibration-damping structure 1.

[0057] Advantageously, as Figure 1 and Figure 2 shown, the opposite two edges of the mounting plate 10 are provided with upward flanges 11, the bottom plate vibration-damping pad 90 includes a horizontal portion 91 and a vertical portion 92, the horizontal portion 91 is clamped between the mounting plate 10 and the bottom plate 80, and the vertical portion 92 abuts against the upward flange 11. Specifically, there can be four bottom plate vibration-damping pads 90, and each upward flange 11 abuts against two bottom plate vibration-damping pads 90. This can not only use the bottom plate vibration-damping pad 90 to suppress the vibration in the up-down direction, but also use the cooperation of the upward flange 11 and the vertical portion 92 to suppress the vibration in the horizontal direction, thereby further preventing the vibration in the vertical and horizontal directions from being transmitted to the bottom plate 80 and causing resonance of the bottom plate 80.

[0058] More specifically, as Figure 2 shown, there is an arc transition between the upward flange 11 and the mounting plate 10, and there is an arc transition between the upper surface of the horizontal portion 91 and the inner side surface of the vertical portion 92. This can improve the vibration-damping effect of the bottom plate vibration-damping pad 90 on the mounting plate 10.

[0059] More advantageously, as Figure 1As shown, the equipment vibration damping structure 1 further includes a liquid storage tank 100. The liquid storage tank 100 is installed on the bottom plate 80 and is connected to the equipment to be vibration damped 20 through a conduit 110. At least a part of the conduit 110 is a flexible hose. Specifically, the part of the conduit 110 close to the equipment to be vibration damped 20 is a flexible hose. In this way, the elastic deformation of the flexible hose can be used to buffer the torsional vibration of the equipment to be vibration damped 20, reduce the vibration energy transmitted to the liquid storage tank 100, further improve the vibration damping effect of the equipment vibration damping structure 1, and further improve the reliability of the pipeline.

[0060] The compressor assembly according to an embodiment of the present invention will be described below. The compressor assembly according to an embodiment of the present invention includes the equipment vibration damping structure 1 according to the above embodiment of the present invention.

[0061] Specifically, the equipment to be vibration damped 20 may be a compressor.

[0062] The compressor assembly according to an embodiment of the present invention has advantages such as good vibration damping effect and strong reliability by using the equipment vibration damping structure according to the above embodiment of the present invention.

[0063] Other configurations and operations of the equipment vibration damping structure 1 according to an embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0064] In the description of this specification, the description of reference terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0065] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A device vibration damping structure for supporting a device to be vibration damped, characterized in that, Comprising: A mounting plate, on which the equipment to be vibration-damped is mounted; A variable-diameter spring, which is arranged between the mounting plate and the equipment to be vibration-damped.

2. The equipment vibration damping structure according to claim 1, wherein, The variable-diameter spring is compressed between the mounting plate and the equipment to be vibration-damped.

3. The equipment vibration damping structure according to claim 1, characterized in that, The diameter of the variable-diameter spring gradually increases from top to bottom.

4. The device vibration damping structure according to claim 1, characterized in that, The diameter of the variable-diameter spring gradually increases from the middle to the upper and lower ends.

5. The device vibration damping structure according to claim 1, wherein Further comprising: An upper vibration-damping pad, which is arranged on the equipment to be vibration-damped, and the upper end of the variable-diameter spring abuts against the upper vibration-damping pad; A lower vibration-damping pad, which is arranged on the mounting plate, and the lower end of the variable-diameter spring abuts against the lower vibration-damping pad.

6. The device vibration damping structure according to claim 5, characterized in that, The equipment to be vibration-damped is provided with feet, the feet are provided with through holes, the mounting plate is provided with mounting holes, bolts are fitted in the through holes and the mounting holes, nuts are threadedly fitted on the bolts, the nuts are located above the feet, an axial limiting sleeve is sleeved outside the bolts, the upper end of the axial limiting sleeve abuts against the nut and the lower end abuts against the mounting plate, and the variable-diameter spring, the upper vibration-damping pad and the lower vibration-damping pad are sleeved outside the axial limiting sleeve.

7. The device vibration damping structure according to claim 6, characterized in that, The upper vibration-damping pad comprises: An upper vibration-damping pad main body, which is located below the feet, and the upper end of the variable-diameter spring abuts against the lower surface of the upper vibration-damping pad main body; An upper positioning portion, which is clamped between the nut and the feet; A connecting portion, which is fitted in the through hole and is respectively connected to the upper vibration-damping pad main body and the upper positioning portion; The lower vibration-damping pad comprises: A lower vibration-damping pad main body, which is located above the mounting plate, and the lower end of the variable-diameter spring abuts against the upper surface of the lower vibration-damping pad main body; A frustum portion, the lower end of the frustum portion is connected to the lower vibration-damping pad main body, the diameter of the frustum portion gradually decreases from bottom to top, and the variable-diameter spring is located radially outside the frustum portion.

8. The device vibration damping structure according to claim 1, characterized in that, Further comprising a bottom plate, the mounting plate is mounted on the bottom plate, and a bottom plate vibration-damping pad is arranged between the bottom plate and the mounting plate.

9. The device vibration damping structure according to claim 8, characterized in that, The bottom plate and the mounting plate are connected by screws, and the bottom plate and the mounting plate jointly squeeze the bottom plate vibration-damping pad.

10. The device vibration damping structure according to claim 8, characterized in that, Upper flanges are provided on opposite edges of the mounting plate, the bottom plate vibration-damping pad comprises a horizontal portion and a vertical portion, the horizontal portion is clamped between the mounting plate and the bottom plate, and the vertical portion abuts against the upper flanges.

11. The equipment vibration damping structure according to claim 8, characterized in that, Further comprising a liquid storage tank, which is mounted on the bottom plate and is connected to the equipment to be vibration-damped through a conduit, and at least a part of the conduit is a flexible hose.

12. A compressor assembly, comprising the equipment vibration-damping structure according to any one of claims 1-11.

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