Protective sleeve, damping assembly, compressor and air conditioning system

Abstract

The invention provides a protective sleeve, a damping assembly, a compressor and an air conditioning system. The protective sleeve comprises an inner cylinder and an outer cylinder, the outer cylinder sleeves the radial outer side of the inner cylinder, a gap is formed between the inner cylinder and the outer cylinder, and a shock pad of the shock absorption assembly sleeves the radial outer side of the outer cylinder so as to be tightly connected with the outer cylinder; the protective sleeve further comprises at least one piezoelectric assembly, and the piezoelectric assembly is located between the outer cylinder and the inner cylinder. When the shock pad is extruded to drive the outer cylinder to vibrate relative to the inner cylinder, the vibration of the outer cylinder relative to the inner cylinder drives the piezoelectric assembly to deform to generate electric energy. According to the damping device, the damping effect can be achieved on equipment such as a compressor needing damping, the damping pad can be protected, mechanical energy of vibration can be converted into electric energy, and therefore waste of the mechanical energy is avoided, the mechanical energy generated by vibration is reasonably utilized, and recycling of the mechanical energy is achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of compressors, and in particular to a protective cover, a shock absorbing assembly, a compressor and an air conditioning system. Background Art

[0002] In the air-conditioning system, the compressor, which is the heart of the whole system, is also the source of vibration in the air-conditioning system, and this vibration is considered unavoidable. In the air-conditioning system, steel sleeves and rubber foot pads are often used in combination with the compressor. The function of the foot pads is to prevent the compressor from rigid collision and to play a certain degree of vibration reduction role on the compressor. The steel sleeve can protect the foot pads from being worn by the threads of the positioning bolts. The foot pads are the first direct contact and fixed parts of the compressor. When the air-conditioning system is running, the vibration will be transmitted to the foot pads at the first time. However, the foot pads in the related art can only play a certain degree of shock absorption role, and cannot effectively utilize the above-mentioned vibrations, resulting in a waste of mechanical energy. Summary of the invention

[0003] In view of this, in order to solve the technical problem that the foot pad in the prior art can only play a certain degree of shock absorption effect, cannot effectively utilize the above-mentioned vibration, and causes waste of mechanical energy, the present disclosure provides a protective cover, a shock absorbing assembly, a compressor and an air-conditioning system.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided a protective sleeve, which is applied to a shock absorbing assembly, wherein the protective sleeve comprises an inner cylinder and an outer cylinder, wherein the outer cylinder is sleeved on the radially outer side of the inner cylinder and a gap is formed between the inner cylinder and the outer cylinder, and a shock absorbing pad of the shock absorbing assembly is sleeved on the radially outer side of the outer cylinder to be tightly connected with the outer cylinder;

[0005] The protective cover also includes at least one piezoelectric component, which is located between the outer tube and the inner tube; wherein, when the shock-absorbing pad is squeezed to drive the outer tube to vibrate relative to the inner tube, the vibration of the outer tube relative to the inner tube drives the piezoelectric component to deform and generate electrical energy.

[0006] In an alternative embodiment,

[0007] The piezoelectric assembly includes an elastic device and a piezoelectric device, and the piezoelectric device is connected to the outer cylinder through the elastic device; wherein the vibration of the outer cylinder relative to the inner cylinder drives the elastic device to undergo elastic deformation, and the elastic deformation of the elastic device drives the piezoelectric assembly to deform and generate electrical energy.

[0008] In an alternative embodiment,

[0009] The piezoelectric device includes a spring sheet and at least one piezoelectric sheet. The spring sheet is fixedly connected to the outer wall of the inner tube, and there is a gap between the spring sheet and the inner tube. The piezoelectric sheet is attached to a side of the spring sheet facing the inner tube.

[0010] In an alternative embodiment,

[0011] The spring sheet comprises a first portion, a middle portion and a second portion which are connected in sequence, the first portion extends from the middle portion in a direction away from the second portion, and there is a gap between the middle portion and the inner tube;

[0012] The free end of the first part is connected to the outer side wall of the inner tube, and the free end of the second part is connected to the outer side wall of the inner tube, so as to realize the fixed connection between the spring sheet and the outer side wall of the inner tube.

[0013] In an alternative embodiment,

[0014] The piezoelectric device includes a first piezoelectric sheet, a second piezoelectric sheet and a third piezoelectric sheet. The first piezoelectric sheet is attached to the first portion, the second piezoelectric sheet is attached to the middle portion, and the third piezoelectric sheet is attached to the second portion.

[0015] In an alternative embodiment,

[0016] The elastic device comprises at least one elastic connecting member, a first end of the elastic connecting member is connected to a side of the elastic sheet facing the outer tube, and a second end of the elastic connecting member is connected to an inner side wall of the outer tube.

[0017] In an alternative embodiment,

[0018] The inner side wall of the outer cylinder comprises a fixing platform for fixing the elastic connecting member, and the second end of the elastic connecting member is connected to the inner side wall of the outer cylinder through the fixing platform.

[0019] In an alternative embodiment,

[0020] The outer cylinder includes a mounting platform, which is located at the first end of the outer cylinder in the axial direction, and in the radial direction of the outer cylinder, the mounting platform extends from the inner side wall of the outer cylinder toward the inner cylinder; the protective sleeve includes a first gasket, which is located between the inner cylinder and the outer cylinder, and is mounted on the mounting platform.

[0021] In an alternative embodiment,

[0022] The outer cylinder includes at least one limit card, which is located on a side of the first gasket away from the mounting platform, and in the radial direction of the outer cylinder, the limit card extends from the inner side wall of the outer cylinder toward the inner cylinder; the limit card is used to limit the first gasket from moving toward a side away from the mounting platform.

[0023] In an alternative embodiment,

[0024] The protective sleeve includes a second gasket, the second gasket is located between the inner side wall of the outer tube and the outer side wall of the inner tube, and the second gasket is located at the second end of the outer tube in the axial direction.

[0025] In an alternative embodiment,

[0026] The protective cover comprises a plurality of piezoelectric component groups, and the piezoelectric component group comprises a plurality of the piezoelectric components;

[0027] Wherein, a plurality of groups of the piezoelectric components are evenly arranged along the axial direction of the inner tube; and / or a plurality of the piezoelectric components in the piezoelectric component group are evenly arranged along the circumferential direction of the inner tube.

[0028] According to a second aspect of an embodiment of the present disclosure, a shock absorbing assembly is provided, comprising a shock absorbing pad and a protective sleeve as described in any one of the first aspects, wherein the shock absorbing pad is arranged on the radially outer side of an outer cylinder of the protective sleeve.

[0029] In an optional embodiment, the shock-absorbing pad is interference-fitted with the outer tube.

[0030] According to a third aspect of an embodiment of the present disclosure, a compressor is provided, the compressor comprising a device body, a fixed base, and a shock absorbing assembly as described in any one of the second aspects, the shock absorbing assembly being mounted on the fixed base, and the shock absorbing assembly being located between the device body and the fixed base;

[0031] Wherein, the compressor includes a positioning member, and the equipment body is inserted into the inner cylinder of the protective sleeve in the shock absorbing assembly through the positioning member to achieve the positioning installation of the equipment body.

[0032] According to a fourth aspect of an embodiment of the present disclosure, an air-conditioning system is provided, comprising the compressor as described in the third aspect.

[0033] The technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: a protective cover is newly designed in the present disclosure, which can replace the steel cover of the related technology and is used to protect the shock-absorbing pad. Moreover, the protective cover includes an inner cylinder, an outer cylinder and a piezoelectric component, and the piezoelectric component is located between the inner cylinder and the outer cylinder. After the shock-absorbing pad is squeezed, because it is closely connected with the outer cylinder, it can drive the outer cylinder to vibrate relative to the inner cylinder, and the vibration of the outer cylinder relative to the inner cylinder drives the piezoelectric component to deform and generate electrical energy. Among them, when the shock-absorbing component provided with the protective cover is applied to equipment such as compressors that require shock absorption, the equipment body can be inserted into the inner cylinder of the protective cover through a positioning member (such as a positioning bolt), and the vibration of the equipment body can squeeze the shock-absorbing pad, and the shock-absorbing pad can make the outer cylinder of the protective cover vibrate relative to the inner cylinder, so that the piezoelectric component between the two is deformed to generate electrical energy. Moreover, the protective cover can avoid contact between the shock-absorbing pad and the positioning member. When the equipment body drives the positioning member to vibrate, the protective cover can avoid damage to the shock-absorbing pad by the positioning member, thereby better protecting the shock-absorbing pad. That is to say, the present invention can not only play a shock-absorbing effect on equipment that requires shock absorption, such as compressors, but also protect shock-absorbing pads, and can also convert the mechanical energy of vibration into electrical energy, thereby avoiding the waste of mechanical energy, rationally utilizing the mechanical energy generated by vibration, and realizing mechanical energy recovery.

[0034] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0037] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0038] Figure 1 is a schematic exploded view of a protective cover according to an exemplary embodiment.

[0039] Figure 2 is a cross-sectional view of a protective cover according to an exemplary embodiment.

[0040] Figure 3 is a schematic diagram of a shock absorbing assembly according to an exemplary embodiment.

[0041] Figure 4 is a schematic diagram of an inner cylinder according to an exemplary embodiment.

[0042] Figure 5 is a schematic diagram of a piezoelectric device according to an exemplary embodiment.

[0043] Figure 6 is a schematic diagram of an outer cylinder according to an exemplary embodiment.

[0044] Reference numerals:

[0045] 10. Protective cover; 20. Shock-absorbing pad;

[0046] 11. Inner cylinder; 12. Outer cylinder; 13. Piezoelectric component; 14. First gasket; 15. Second gasket;

[0047] 121. Fixed platform; 122. Mounting platform; 123. Limiting card;

[0048] 131. Elastic device; 132. Piezoelectric device;

[0049] 1311. spring piece; 1312. elastic connecting piece;

[0050] 1311a, first part; 1311b, middle part; 1311c, second part;

[0051] 1321, piezoelectric sheet;

[0052] 1321a, a first piezoelectric sheet; 1321b, a second piezoelectric sheet; 1321c, a third piezoelectric sheet. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0054] The disclosure below provides many different embodiments or examples to implement different schemes of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0055] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0056] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application, and thus the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0057] The following will describe the implementation methods of the present application with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, not for limiting the scope of protection of the present application.

[0058] In order to solve the technical problem in the prior art that the foot pad can only play a certain degree of shock absorption effect, cannot effectively utilize the above-mentioned vibration, and causes waste of mechanical energy, the present disclosure provides a protective cover, a shock absorbing assembly, a compressor and an air-conditioning system.

[0059] Among them, a protective cover is newly designed in the present disclosure, which can replace the steel cover of the related technology and is used to protect the shock-absorbing pad. Moreover, the protective cover includes an inner tube, an outer tube and a piezoelectric component, and the piezoelectric component is located between the inner tube and the outer tube. After the shock-absorbing pad is squeezed, because it is closely connected with the outer tube, it can drive the outer tube to vibrate relative to the inner tube, and the vibration of the outer tube relative to the inner tube drives the piezoelectric component to deform and generate electrical energy. Among them, when the shock-absorbing component provided with the protective cover is applied to equipment such as compressors that require shock absorption, the equipment body can be inserted into the inner tube of the protective cover through a positioning member (such as a positioning bolt), and the vibration of the equipment body can squeeze the shock-absorbing pad, and the shock-absorbing pad can make the outer tube of the protective cover vibrate relative to the inner tube, so that the piezoelectric component between the two is deformed to generate electrical energy. Moreover, the protective cover can avoid contact between the shock-absorbing pad and the positioning member. When the equipment body drives the positioning member to vibrate, the protective cover can avoid damage to the shock-absorbing pad by the positioning member, and better protect the shock-absorbing pad. That is to say, the present invention can not only play a shock-absorbing effect on equipment that requires shock absorption, such as compressors, but also protect shock-absorbing pads, and can also convert the mechanical energy of vibration into electrical energy, thereby avoiding the waste of mechanical energy, rationally utilizing the mechanical energy generated by vibration, and realizing mechanical energy recovery.

[0060] In an exemplary embodiment, a protective cover, a shock absorbing assembly, a compressor and other equipment requiring shock absorption are provided. Figures 1 to 3 As shown, the protective cover 10 can be applied to a shock absorbing assembly, and the shock absorbing assembly can be applied to equipment that requires shock absorption, such as a compressor. The protective cover 10 includes an inner cylinder 11 and an outer cylinder 12, the outer cylinder 12 is sleeved on the radially outer side of the inner cylinder 11, and a gap is formed between the inner cylinder 11 and the outer cylinder 12, and the inner cylinder 11 and the outer cylinder 12 are elastically connected. The elastic connection between the inner cylinder 11 and the outer cylinder 12 can be achieved by using elastic elements such as springs and rubber. For example, in the protective cover 10 of the compressor of a small air conditioner, a plurality of rubber pads are evenly distributed between the outer cylinder 12 and the inner cylinder 11, which can not only ensure the relative position stability of the outer cylinder 12 and the inner cylinder 11, but also play a buffering role during vibration.

[0061] It should be noted that the inner cylinder 11 can be made of materials such as alloy steel or carbon steel, or other materials, without limitation. For example, in some industrial compressor applications, the inner cylinder 11 is made of high-strength alloy steel, and its good mechanical properties can withstand the various forces generated when the compressor is working. The size of the inner cylinder 11 is designed according to the actual installation requirements of the compressor, and its inner diameter is closely matched with the installation part of the compressor to ensure that it can be stably connected to the compressor. In addition, the material of the outer cylinder 12 and the inner cylinder 11 can be the same or different, without limitation.

[0062] The shock-absorbing pad 20 of the shock-absorbing assembly is sleeved on the radial outer side of the outer cylinder 12 to be tightly connected with the outer cylinder 12. The shock-absorbing pad 20 can be made of a rubber material with high elasticity and high damping, for example, and its shape and size are designed according to the weight and vibration characteristics of the compressor. For example, in the shock-absorbing assembly of a large industrial refrigeration compressor, the bottom area of ​​the shock-absorbing pad 20 is large to increase the contact area with the ground and improve stability. At the same time, the interior of the shock-absorbing pad 20 has a complex honeycomb structure, which can effectively absorb and dissipate the vibration mechanical energy generated by the operation of the compressor while bearing the weight of the compressor.

[0063] The protective cover 10 further includes at least one piezoelectric component 13, and the piezoelectric component 13 is located between the outer cylinder 12 and the inner cylinder 11; when the shock-absorbing pad 20 is squeezed to drive the outer cylinder 12 to vibrate relative to the inner cylinder 11, the vibration of the outer cylinder 12 relative to the inner cylinder 11 drives the piezoelectric component 13 to deform and generate electrical energy. This embodiment can not only achieve a shock-absorbing effect on equipment that requires shock absorption, such as a compressor, but also protect the shock-absorbing pad 20, and can also convert the mechanical energy of vibration into electrical energy, thereby avoiding the waste of mechanical energy, rationally utilizing the mechanical energy generated by vibration, and realizing the recovery of mechanical energy.

[0064] The piezoelectric assembly 13 includes an elastic device 131 and a piezoelectric device 132. The elastic device 131 and the piezoelectric device 132 are both located between the outer cylinder 12 and the inner cylinder 11, and the piezoelectric device 132 is connected to the outer cylinder 12 through the elastic device 131. When the shock-absorbing pad 20 is squeezed to drive the outer cylinder 12 to vibrate relative to the inner cylinder 11, the vibration of the outer cylinder 12 relative to the inner cylinder 11 drives the elastic device 131 to undergo elastic deformation, thereby driving the piezoelectric device 132 to deform and generate electrical energy.

[0065] The elastic device 131 may include a spring, and when the outer cylinder 12 vibrates relative to the inner cylinder 11, the spring can be elastically deformed. For example, a small coil spring with a high elastic coefficient can be used as the elastic device 131, which can quickly respond to the vibration of the outer cylinder 12. The piezoelectric device 132 may include a piezoelectric piece 1321 such as a piezoelectric ceramic piece or a PVDF piezoelectric film (i.e., a polyvinylidene fluoride piezoelectric film, which is a new type of polymer piezoelectric material), which can generate electrical energy when deformed by an external force.

[0066] Among them, when the shock-absorbing assembly is applied to a compressor, when the compressor is running, vibration is generated, and the vibration is transmitted to the outer cylinder 12 of the protective sleeve 10 through the shock-absorbing pad 20. Since the outer cylinder 12 and the inner cylinder 11 are elastically connected, the outer cylinder 12 will vibrate relative to the inner cylinder 11. For example, during the start and stop of the compressor, or during the operation of the compressor due to the imbalance of internal components, the vibration will cause the vibration of the outer cylinder 12. The vibration of the outer cylinder 12 relative to the inner cylinder 11 will drive the elastic device 131 to undergo elastic deformation. Since the piezoelectric device 132 is connected to the outer cylinder 12 through the elastic device 131, the deformation of the elastic device 131 will drive the piezoelectric device 132 to deform. According to the piezoelectric effect, the piezoelectric device 132 will generate electrical energy during the deformation process. For example, when the compressor is operating normally, the continuous vibration causes the piezoelectric sheet 1321 in the piezoelectric device 132 to continuously produce small deformations, thereby continuously generating electrical energy. This electrical energy can be collected and utilized. For example, a battery and a power supply line can be set in the compressor, and the electric energy generated by the piezoelectric sheet 1321 can be transmitted to the battery for storage, and the battery can power some small sensors or monitoring equipment on the compressor through the power supply line.

[0067] The protective cover 10 of this embodiment can replace the steel cover of the related art, and is used to protect the shock-absorbing pad 20. Moreover, the protective cover 10 includes an inner tube 11, an outer tube 12, and a piezoelectric assembly 13, and the piezoelectric assembly 13 includes an elastic state and a piezoelectric device 132 located between the inner tube 11 and the outer tube 12. When the shock-absorbing pad 20 is squeezed to drive the outer tube 12 to vibrate relative to the inner tube 11, the vibration of the outer tube 12 relative to the inner tube 11 drives the elastic device 131 to elastically deform, so as to drive the piezoelectric device 132 to deform and generate electrical energy.

[0068] Among them, when the shock-absorbing assembly provided with the protective cover 10 is applied to equipment that requires shock absorption, such as a compressor, the main body of the equipment can be inserted into the inner cylinder 11 of the protective cover 10 through a positioning piece (such as a positioning bolt), and the vibration of the main body of the equipment can squeeze the shock-absorbing pad 20, and the shock-absorbing pad 20 can make the outer cylinder 12 of the protective cover 10 vibrate relative to the inner cylinder 11, so that the elastic device 131 between the two undergoes elastic deformation, and then drives the piezoelectric device 132 to deform to generate electrical energy. In addition, the protective cover 10 can avoid contact between the shock-absorbing pad 20 and the positioning piece. When the main body of the equipment drives the positioning piece to vibrate, the protective cover 10 can avoid damage to the shock-absorbing pad 20 by the positioning piece, thereby better protecting the shock-absorbing pad 20.

[0069] That is to say, this embodiment can not only achieve a shock-absorbing effect on equipment that requires shock absorption, such as compressors, but also protect the shock-absorbing pad 20, and can also convert the mechanical energy of vibration into electrical energy, thereby avoiding the waste of mechanical energy, rationally utilizing the mechanical energy generated by vibration, and realizing mechanical energy recovery.

[0070] In an exemplary embodiment, reference Figures 1 to 5 As shown, a protective cover 10, a shock absorbing assembly, and a device such as a compressor that requires shock absorption are provided. In this embodiment, the piezoelectric device 132 of the protective cover 10 may include a spring 1321, and the spring 1321 may be made of a metal with stable elasticity and certain strength such as beryllium bronze. The spring 1321 is fixedly connected to the outer wall of the inner cylinder 11, and there is a gap between the spring 1321 and the inner cylinder 11. The piezoelectric device 132 may also include at least one piezoelectric sheet 1321, and the piezoelectric sheet 1321 is attached to the side of the spring 1321 facing the inner cylinder 11.

[0071] The spring piece 1321 may include a first portion 1311a, a middle portion 1311b, and a second portion 1311c that are connected in sequence. The first portion 1311a extends from the middle portion 1311b in a direction away from the second portion 1311c, and there is a gap between the middle portion 1311b and the inner cylinder 11. The free end of the first portion 1311a is connected to the outer side wall of the inner cylinder 11, and the free end of the second portion 1311c is connected to the outer side wall of the inner cylinder 11, so as to achieve a fixed connection between the spring piece 1321 and the outer side wall of the inner cylinder 11.

[0072] Among them, the free end of the first part 1311a can be connected to the outer wall of the inner tube 11 by welding or high-strength bolt connection, and of course it can be connected by other methods, which is not limited. The size and shape of the first part 1311a can be set according to actual needs, and its specific size and shape can be set without limitation. The design of the first part 1311a is based on the ability to produce appropriate elastic deformation when subjected to external force. The free end of the second part 1311c is also connected to the outer wall of the inner tube 11, and can be symmetrically distributed with the first part 1311a. Its connection method and design parameters can refer to the first part 1311a, and will not be repeated here. It should be noted that the symmetrical design of the first part 1311a and the second part 1311c can make the spring piece 1321 evenly play an elastic buffering role when subjected to vibration from all directions.

[0073] The interval between the middle portion 1311b and the inner cylinder 11 can provide space for the elastic deformation of the spring piece 1321. The size of the interval is determined according to the application environment (such as the vibration amplitude of the compressor) and the elastic coefficient of the spring piece 1321 to ensure that the spring piece 1321 does not collide with the inner cylinder 11 in normal use.

[0074] The piezoelectric device 132 may include three piezoelectric sheets 1321, which are respectively referred to as a first piezoelectric sheet 1321a, a second piezoelectric sheet 1321b and a third piezoelectric sheet 1321c. The first piezoelectric sheet 1321a is attached to the first portion 1311a, the second piezoelectric sheet 1321b is attached to the middle portion 1311b, and the third piezoelectric sheet 1321c is attached to the second portion 1311c.

[0075] Among them, the piezoelectric sheet 1321 and the spring sheet 1321 can be directly fixedly connected by an adhesive, or fixedly connected by other means, and there is no limitation on this. When the first part 1311a of the spring sheet 1321 undergoes elastic deformation during the vibration process, the first piezoelectric sheet 1321a will deform accordingly, generate electrical energy according to the piezoelectric effect, and realize the conversion of mechanical energy into electrical energy. When the second part 1311c of the spring sheet 1321 is deformed due to vibration, the second piezoelectric sheet 1321b will deform accordingly, generate electrical energy according to the piezoelectric effect, and realize the conversion of mechanical energy into electrical energy. The vibration of the middle part 1311b is different from that of the first part 1311a and the second part 1311c, so the second piezoelectric sheet 1321b can also be designed to be adaptive so that the second piezoelectric sheet 1321b can capture the vibration of the middle part 1311b and convert the mechanical energy into electrical energy.

[0076] In this embodiment, when the shock-absorbing assembly provided with the protective cover 10 is applied to the compressor, when the compressor generates vibration during operation, the vibration is first transmitted to the shock-absorbing pad 20. The shock-absorbing pad 20 absorbs and dissipates a part of the vibration energy through its own elasticity and damping characteristics, reducing the transmission of the vibration to the protective cover 10. The remaining vibration is transmitted to the outer cylinder 12 of the protective cover 10, and then further buffered by the spring 1321. The first part 1311a, the middle part 1311b and the second part 1311c of the spring 1321 will undergo different degrees of elastic deformation according to the direction and intensity of the vibration, effectively reducing the vibration transmitted to the inner cylinder 11 and the compressor, and protecting the compressor from damage caused by excessive vibration. In addition, during the elastic deformation of the spring 1321, the first piezoelectric sheet 1321a, the second piezoelectric sheet 1321b and the third piezoelectric sheet 1321c attached to different parts of the spring 1321 will also be deformed accordingly. According to the piezoelectric effect, these piezoelectric sheets 1321 convert mechanical energy into electrical energy. For example, when a large vibration is generated during the start or stop of the compressor, the deformation amplitude of the spring 1321 is large, and the electric energy generated by the piezoelectric sheet 1321 also increases accordingly. This electric energy can be collected and stored through a suitable circuit and used to power some small monitoring devices (such as temperature sensors, vibration sensors, etc.) on the compressor or other low-power electronic devices, thereby realizing energy recycling.

[0077] In an exemplary embodiment, reference Figures 1 to 6As shown, a protective cover 10, a shock absorbing assembly, and a device such as a compressor that requires shock absorption are provided. In this embodiment, the elastic device 131 of the protective cover 10 may include at least one elastic connector 1312, and the elastic connector 1312 may be, for example, a spring, or other elastic connectors, which are not limited thereto. The provision of the elastic connector 1312 such as a spring can buffer the spring sheet 1321, thereby preventing the spring sheet 1321 from being damaged due to excessive deformation, thereby better preventing the piezoelectric sheet 1321 from being damaged due to excessive deformation.

[0078] The first end of the elastic connector 1312 is connected to the side of the spring 1321 facing the outer tube 12, and the second end of the elastic connector 1312 is connected to the inner wall of the outer tube 12, so as to realize the installation and fixation of the elastic connector 1312 and prevent the elastic connector 1312 from falling off. It should be noted that the connection between the elastic connector 1312 and the outer tube 12 and the spring 1321 can be connected by bonding, welding, or other connection methods, which are not limited.

[0079] Among them, the inner wall of the outer cylinder 12 includes a fixing platform 121 for fixing the elastic connector 1312, and the second end of the elastic connector 1312 is connected to the inner wall of the outer cylinder 12 through the fixing platform 121, so as to facilitate the connection between the elastic connector 1312 and the outer cylinder 12, which can not only improve the assembly efficiency, but also improve the reliability of the connection between the elastic connector 1312 and the outer cylinder 12, and better prevent the elastic connector 1312 from falling off.

[0080] Among them, one elastic device 131 can be arranged between each spring piece 1321 and the outer tube 12, or more than one elastic device 131 can be arranged, which can be determined according to the actual installation space, elasticity requirements, and the specific form of the elastic device 131. For example, the elastic device 131 can include a spring, and three springs can be arranged between each spring piece 1321 and the outer tube 12 to ensure the required buffering effect. Moreover, when more than one elastic device 131 is arranged, if one of the elastic devices 131 is damaged as the use time increases, the other elastic devices 131 can still play a certain buffering role.

[0081] Wherein, when the elastic device 131 may include a spring, a plurality of connection points may be provided at the first end of each spring. On the spring sheet 1321, each connection point of the spring may be reinforced to ensure the firmness of the connection. The fixing platform 121 of the inner side wall of the outer cylinder 12 may be an integrally formed structure when the outer cylinder 12 is manufactured. A groove matching the outer diameter of the spring may be provided on the fixing platform 121 to improve the reliability of the connection between the two. The depth of the groove may be set according to actual conditions and is not limited thereto. During assembly, the second end of the spring is inserted into the groove, and then the spring is fixed in the groove by a small fixing clip or spot welding. This design is not only easy to install, but also greatly improves the reliability of the connection between the spring and the outer cylinder 12, and effectively prevents the spring from falling off during long-term vibration.

[0082] In this embodiment, when the shock absorbing assembly provided with the protective cover 10 is applied to the compressor, when the compressor is running and generates vibration, the vibration is first transmitted to the shock absorbing pad 20. The shock absorbing pad 20 absorbs and dissipates a part of the vibration energy through its own elasticity and damping characteristics, and then transmits the remaining vibration to the outer cylinder 12. After the outer cylinder 12 receives the vibration, it further transmits the vibration to the spring 1321 through the elastic connecting member 1312 (such as a spring). In this process, the spring is compressed or stretched according to the direction and intensity of the vibration, and the vibration energy is buffered and absorbed to prevent the spring 1321 from being damaged due to excessive impact force in an instant. After the spring 1321 receives the vibration buffered by the spring, its first part 1311a, the middle part 1311b and the second part 1311c are deformed to different degrees according to the vibration conditions, and the vibration is further buffered. For example, when a large impact vibration is generated when the compressor is started, the spring and the spring 1321 work together to effectively limit the deformation amplitude of the spring 1321 and protect the spring 1321 and the piezoelectric sheet 1321 attached thereto. When the shrapnel 1321 is deformed due to vibration, the piezoelectric sheets 1321 attached to different parts of the shrapnel 1321 will deform along with the deformation of the shrapnel 1321, thereby generating electrical energy. This connection and working mode of the spring and the shrapnel 1321 indirectly ensures that the piezoelectric sheet 1321 works within a suitable deformation range by stabilizing the deformation of the shrapnel 1321. If the deformation of the shrapnel 1321 is too large, the piezoelectric sheet 1321 may exceed its elastic limit and be damaged, affecting the energy recovery function. The buffering effect of the spring enables the piezoelectric sheet 1321 to continuously and stably convert mechanical energy into electrical energy within the normal vibration range of the compressor.

[0083] In an exemplary embodiment, reference Figures 1 to 6As shown, a protective sleeve 10, a shock absorbing assembly, and a device such as a compressor that requires shock absorption are provided. In this embodiment, the outer cylinder 12 of the protective sleeve 10 may include a mounting platform 122, which is located at the first end of the outer cylinder 12 in the axial direction, and in the radial direction of the outer cylinder 12, the mounting platform 122 extends from the inner side wall of the outer cylinder 12 toward the inner cylinder 11. The protective sleeve 10 includes a first gasket 14, which is located between the inner cylinder 11 and the outer cylinder 12, and the first gasket 14 is installed on the mounting platform 122 to ensure the stable installation of the first gasket 14. The first gasket 14 can seal the space between the outer cylinder 12 and the inner cylinder 11, preventing external debris from falling into the gap between the outer cylinder 12 and the inner cylinder 11 through the end where the first gasket 14 is located, which can well ensure that the piezoelectric assembly 13 between the outer cylinder 12 and the inner cylinder 11 is not affected by foreign debris, and better ensure the long-term and normal use of the piezoelectric assembly 13.

[0084] It should be noted that when the shock-absorbing assembly provided with the protective cover 10 is applied to the compressor, generally, the first axial end of the outer cylinder 12 is vertically upward. If the first gasket 14 is not provided, the external debris can easily fall into the gap between the outer cylinder 12 and the inner cylinder 11. After the debris falls into the gap between the two, if it is clamped in the elastic connector 1312 (such as a spring), or between the spring 1321 and the inner cylinder 11, it is easy to affect the elastic deformation of the elastic connector 1312 and the spring 1321, which not only affects the shock-absorbing effect, but also affects the conversion of mechanical energy and electrical energy. However, this embodiment can well avoid the occurrence of the above situation by providing the first gasket 14, further improving the reliability of the piezoelectric assembly 13, and improving the reliability of the entire shock-absorbing assembly.

[0085] The outer cylinder 12 includes at least one limit card 123, and the limit card 123 is located on the side of the first gasket 14 away from the mounting platform 122. In the radial direction of the outer cylinder 12, the limit card 123 extends from the inner side wall of the outer cylinder 12 toward the inner cylinder 11. The limit card 123 is used to limit the first gasket 14 to move toward the side away from the mounting platform 122, so as to better ensure the reliable fixation of the first gasket 14.

[0086] The outer cylinder 12 can be made of a high-strength metal material, such as an aluminum alloy, to provide sufficient strength and stability. The outer cylinder 12 can be cylindrical in shape, and its size can be determined according to the installation space and shock absorption requirements of the compressible compressor, and is not limited to this. The outer cylinder 12 is provided with a mounting platform 122 at the first end in the axial direction. The mounting platform 122 extends radially from the inner side wall of the outer cylinder 12 to the inner cylinder 11. The size of the mounting platform 122 can be set according to actual needs, and is not limited to this.

[0087] It should be noted that since the vibration of the compressor will cause the outer cylinder 12 to vibrate relative to the inner cylinder 11 , the radial distance between the mounting platform 122 and the outer wall of the inner cylinder 11 needs to be ensured to avoid a rigid collision between the mounting platform 122 and the inner cylinder 11 .

[0088] In addition, the outer cylinder 12 may further include at least one stopper 123 (for example, three stoppers 123 may be provided, evenly distributed along the circumference of the outer cylinder 12). The stopper 123 is located near the first axial end of the outer cylinder 12, and extends radially from the inner side wall of the outer cylinder 12 to the inner side, and the extension dimension may be smaller than the extension dimension of the mounting platform 122, that is, the side of the mounting platform 122 facing the inner cylinder 11 is closer to the inner cylinder 11 than the side of the stopper 123 facing the inner cylinder 11. Based on this, the installation of the first gasket 14 can be more convenient.

[0089] It should be noted that the end of the limit card 123 (i.e., the end facing the inner tube 11) can be provided with a bending portion or a folded portion, i.e., the end of the limit card 123 can be slightly bent or folded toward the mounting platform 122 to better limit the position and better prevent the first gasket 14 from falling off.

[0090] The inner cylinder 11 may also be made of metal material (such as carbon steel), and its inner diameter is adapted to the positioning member of the compressor, and its length (i.e., axial dimension) may be similar to that of the outer cylinder 12, or may be greater than that of the outer cylinder 12, and this is not limited. The inner cylinder 11 may be connected to the compressor by fixing with positioning bolts (as positioning members), or by positioning connection with other positioning members, so as to ensure a stable connection between the inner cylinder 11 and the compressor during operation.

[0091] The first gasket 14 can be made of a rubber material with good sealing performance and wear resistance, and its shape is annular. The first gasket 14 is installed on the mounting platform 122 and fits tightly with the mounting platform 122. Its function is to seal the space between the outer cylinder 12 and the inner cylinder 11 to prevent external debris from entering the space between the two from the axial first end of the outer cylinder 12.

[0092] When equipment that requires shock absorption, such as a compressor, is operated in various environments, there may be dust, debris, and other debris in the outside. In this embodiment, since the mounting platform 122 and the first gasket 14 are provided at the axial first end (usually vertically upward) of the outer cylinder 12, the first gasket 14 is tightly mounted on the mounting platform 122, effectively blocking debris from entering the gap between the outer cylinder 12 and the inner cylinder 11 from this direction. This is like a barrier that protects the internal elastic connector 1312, the spring 1321, and the piezoelectric assembly 13.

[0093] The limit card 123 is located on the side of the first gasket 14 away from the mounting platform 122, and extends from the inner side wall of the outer cylinder 12 toward the inner cylinder 11. When the first gasket 14 is installed on the mounting platform 122, the limit card 123 limits the first gasket 14, preventing the first gasket 14 from moving in a direction away from the mounting platform 122 when subjected to vibration, gravity or other external forces. This limiting effect ensures that the first gasket 14 always remains in the correct position during long-term operation and continues to play its sealing role. Of course, the first gasket 14 can also play a certain buffering role against the vibration of the outer cylinder 12 relative to the inner cylinder 11, so as to avoid a rigid collision between the outer cylinder 12 and the inner cylinder 11 at its first end.

[0094] In addition, in this embodiment, the protective sleeve 10 may further include a second gasket 15. The second gasket 15 is located between the inner side wall of the outer tube 12 and the outer side wall of the inner tube 11, and the second gasket 15 is located at the second end of the outer tube 12 in the axial direction. The first end and the second end are two opposite ends of the outer tube 12 in the axial direction.

[0095] Among them, the materials of the second gasket 15 and the first gasket 14 can be the same or different, and there is no limitation on this. The second gasket 15 can also be constructed in a circular ring shape, and the second gasket 15 is located between the inner side wall of the outer cylinder 12 and the outer side wall of the inner cylinder 11, and is located at the second end of the outer cylinder 12 in the axial direction. In this way, the second gasket 15 and the first gasket 14 respectively seal and protect the internal space from both ends of the axial direction of the outer cylinder 12 to achieve a better sealing effect. In addition, the second gasket 15 can also play a certain buffering role on the vibration of the outer cylinder 12 relative to the inner cylinder 11, so as to avoid the outer cylinder 12 at its second end The position of the inner cylinder 11 has a rigid collision. The cooperation of the first gasket 14 and the second gasket 15 can play a more uniform buffering role on the vibration of the outer cylinder 12 relative to the inner cylinder 11, thereby better protecting the piezoelectric component 13 between the inner cylinder 11 and the outer cylinder 12, making the operation of the piezoelectric component 13 more reliable, the power conversion efficiency remains stable, and the power supply for small electronic devices on the compressor is more continuous and stable.

[0096] In an exemplary embodiment, reference Figures 1 to 6 As shown, a protective cover 10, a shock absorbing assembly, and a device such as a compressor that requires shock absorption are provided. In this embodiment, the protective cover 10 may include a plurality of piezoelectric assembly groups 13, and the piezoelectric assembly group 13 includes a plurality of piezoelectric assemblies 13. The piezoelectric assembly 13 may include an elastic device 131 and a piezoelectric device 132, both of which are located between the outer cylinder 12 and the inner cylinder 11, and the piezoelectric device 132 is connected to the outer cylinder 12 through the elastic device 131.

[0097] Among them, multiple piezoelectric components 13 in each group of piezoelectric components 13 can be evenly arranged along the circumference of the inner tube 11, that is, multiple elastic devices 131 are evenly arranged along the circumference of the inner tube 11, and multiple piezoelectric devices 132 corresponding to the multiple elastic devices 131 are also evenly arranged along the circumference of the inner tube 11, so as to achieve a more balanced shock-absorbing and buffering effect and better convert mechanical energy into electrical energy.

[0098] Among them, the multiple groups of piezoelectric components 13 are evenly arranged along the axial direction of the inner tube 11, so that a more balanced shock absorption and buffering effect can be achieved, and mechanical energy can be better converted into electrical energy. It should be noted that the multiple groups of piezoelectric components 13 are evenly arranged along the axial direction of the inner tube 11, and the multiple piezoelectric components 13 in each piezoelectric component 13 group can be evenly arranged along the circumference of the inner tube 11. Based on this, a more balanced shock absorption and buffering effect can be achieved, and mechanical energy can be better converted into electrical energy.

[0099] In some embodiments,

[0100] The protective cover 10 may include an outer cylinder 12, an inner cylinder 11, and three groups of piezoelectric components 13 between the outer cylinder 12 and the inner cylinder 11, and each group of piezoelectric components 13 may include four piezoelectric components 13. The three groups of piezoelectric components 13 are evenly arranged along the axial direction of the protective cover 10. The four piezoelectric components 13 in each group of piezoelectric components 13 are evenly arranged along the circumference of the protective cover 10.

[0101] Each piezoelectric component 13 may include an elastic device 131 and a piezoelectric device 132. The elastic device 131 may include a spring 1321, and the spring 1321 may include a first portion 1311a, a middle portion 1311b, and a second portion 1311c connected in sequence. The piezoelectric device 132 may include three piezoelectric sheets 1321, which are respectively referred to as a first piezoelectric sheet 1321a, a second piezoelectric sheet 1321b, and a third piezoelectric sheet 1321c. The first piezoelectric sheet 1321a is attached to the first portion 1311a, the second piezoelectric sheet 1321b is attached to the middle portion 1311b, and the third piezoelectric sheet 1321c is attached to the second portion 1311c.

[0102] Each elastic device 131 may further include three springs, each of which is located between the outer tube 12 and the spring sheet 1321. The first end of the spring is fixedly connected to the middle portion 1311b of the spring sheet 1321, and the second end of the spring is fixedly connected to the inner wall of the outer tube 12.

[0103] The three springs in each elastic device 131 are evenly arranged along the first direction of the middle part 1311b. It should be noted that the second direction of the middle part 1311b refers to the thickness direction, the third direction of the middle part 1311b refers to the extension direction from the first part 1311a to the second part 1311c, and the first direction of the middle part 1311b refers to another extension direction perpendicular to the second direction and the third direction.

[0104] The protective sleeve 10 of this embodiment can replace the steel sleeve in the related technology, and can not only realize the function of the steel sleeve, but also collect the vibration transmitted by the compressor to the shock-absorbing pad 20 and convert it into electrical energy. This conversion can also enhance the vibration reduction effect of the shock-absorbing component in a disguised manner.

[0105] Among them, the spring piece 1321 on the inner cylinder 11 is connected to the outer cylinder 12 through a spring, so that when the outer cylinder 12 vibrates, the force will be transmitted to the spring piece 1321 through the spring, the spring piece 1321 will be deformed, and the piezoelectric piece 1321 attached to the inner side of the spring piece 1321 will be deformed synchronously. Based on the characteristics of piezoelectric materials, the deformation will generate electrical energy. In this way, the continuous vibration of the outer cylinder 12 will cause the piezoelectric piece 1321 to continuously deform in different directions, and the mechanical energy generated by the vibration of the compressor will be continuously converted into electrical energy through the piezoelectric piece 1321.

[0106] Among them, the inner side wall of the outer cylinder 12 may be provided with a square (e.g., rectangular) fixed platform 121 for fixing the connecting spring. The fixed platform 121 may be provided with four, and each fixed platform 121 may extend along the axial direction of the outer cylinder 12 so that it can adapt to multiple springs to achieve the fixation of all springs. It should be noted that the fixed platform 121 may also include three platform groups, each platform group includes four square platforms. Each square platform corresponds to three springs of an elastic device 131, and is used to fix the second ends of the three springs. Of course, the fixed platform 121 may also be in other forms, which are not limited to this.

[0107] The protective cover 10 may further be provided with a first gasket 14 and a second gasket 15 , which are the upper and lower gaskets of the protective cover 10 respectively, and are used to seal the entire protective cover 10 while preventing the outer tube 12 and the inner tube 11 from rigidly colliding and producing abnormal noise.

[0108] Among them, the first end of the outer tube 12 (i.e. Figure 2The outer cylinder 12 is provided with an annular mounting platform 122, and the mounting platform 122 extends from the inner side wall of the outer cylinder 12 toward the inner cylinder 11 in the radial direction of the outer cylinder 12. The first gasket 14 is located between the inner cylinder 11 and the outer cylinder 12, and the first gasket 14 is installed on the mounting platform 122 to ensure the stable installation of the first gasket 14. The outer cylinder 12 includes at least one limiting card 123, and the limiting card 123 is located on the side of the first gasket 14 away from the mounting platform 122. In the radial direction of the outer cylinder 12, the limiting card 123 extends from the inner side wall of the outer cylinder 12 toward the inner cylinder 11. The limiting card 123 is used to limit the movement of the first gasket 14 toward the side away from the mounting platform 122 to better ensure the reliable fixation of the first gasket 14. Among them, it can be set to four, and the four limiting cards 123 can be evenly distributed along the circumference of the outer cylinder 12 to better limit the first gasket 14 and better prevent the displacement of the first gasket 14.

[0109] It should be noted that the mounting platform 122 is constructed as an integral annular structure, which can better ensure the stable placement of the first gasket 14. A plurality of dispersed limiter clips 123 are arranged above the first gasket 14. Compared with the integral annular limiter structure, the dispersed limiter clips 123 can both play a limiting role and facilitate the installation of the first gasket 14.

[0110] Among them, the shock absorbing assembly includes not only the protective sleeve 10 but also the shock absorbing pad 20. The protective sleeve 10 replaces the steel sleeve of the related technology, so that it can not only achieve the protective effect of the steel sleeve on the shock absorbing pad 20, but also convert the mechanical energy generated by the vibration into electrical energy. In this embodiment, the shock absorbing pad 20 is sleeved on the radial outer side of the outer cylinder 12 of the protective sleeve 10, and the outer cylinder 12 and the inner side wall of the shock absorbing pad 20 can be interference fit to better prevent embedding and ensure the reliability between the protective sleeve 10 and the shock absorbing pad 20, and prevent the two from falling off from each other.

[0111] Among them, the compressor may include an equipment body and a fixed base. In the related art, the equipment body is installed on the fixed base through a foot pad with a steel sleeve. In this embodiment, a protective sleeve 10 is used instead of the steel sleeve, and the shock absorbing assembly is installed on the fixed base, and is located between the equipment body and the fixed base, and is in close contact with the equipment body and the fixed base. The equipment body can be inserted into the inner cylinder 11 of the protective sleeve 10 through the positioning member of the compressor (such as a positioning bolt) to achieve the positioning installation of the equipment body. The provision of the protective sleeve 10 can prevent the thread of the positioning bolt from directly contacting the shock absorbing pad 20, causing the shock absorbing pad 20 to be worn by the thread.

[0112] When the compressor is running, due to the operation mode of the internal mechanism of the compressor body, irregular vibration will inevitably be generated. As the first contact piece of the equipment body, the vibration will be transmitted to the shock-absorbing pad 20 at the first time, and the shock-absorbing pad 20 will be deformed accordingly. At this time, the outer cylinder 12 of the protective cover 10 will be displaced under the squeezing of the shock-absorbing pad 20. The displacement of the outer cylinder 12 will generate a force through the spring and be transmitted to the spring piece 1321 on the inner cylinder 11, causing the spring piece 1321 to be deformed. The piezoelectric sheet 1321 attached to the inner side of the spring piece 1321 will be deformed accordingly to generate electrical energy, thereby realizing the conversion of mechanical energy into electrical energy while reducing shock.

[0113] That is to say, this embodiment can not only achieve a shock-absorbing effect on equipment that requires shock absorption, such as compressors, but also protect the shock-absorbing pad 20, and can also convert the mechanical energy of vibration into electrical energy, thereby avoiding the waste of mechanical energy, rationally utilizing the mechanical energy generated by vibration, and realizing mechanical energy recovery.

[0114] It should be noted that the shock absorbing assembly of this embodiment can be applied not only to compressors, but also to other equipment with shock absorption requirements (such as semiconductor manufacturing equipment, machine tool equipment, water pumps, etc.), without limitation.

[0115] In an exemplary embodiment, an air conditioning system (not shown in the figure) is provided. The air conditioning system may include the above-mentioned compressor. The air conditioning system of this embodiment can effectively solve the problems caused by compressor vibration and can achieve a certain degree of energy recovery. The recovered electrical energy can be used for sensors and other devices in the air conditioning system, thereby improving the overall performance, comfort and energy saving of the air conditioning system, and has good application prospects. It should be noted that in actual production and application, the parameters of the shock absorbing component of the compressor can be further optimized according to air conditioning systems of different models and powers to achieve better results.

[0116] The professionals should also be further aware that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0117] It should be noted that the phrases "one implementation", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0118] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more limiting values, the elements defined by the sentence "comprise a..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0119] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitution or change made by a person skilled in the art based on the present application is within the protection scope of the present application.

Claims

1. A protective cover, applied to a shock absorbing component, characterized in that: The protective sleeve comprises an inner sleeve and an outer sleeve, wherein the outer sleeve is sleeved on the radial outer side of the inner sleeve and a gap is formed between the inner sleeve and the outer sleeve, and the shock absorbing pad of the shock absorbing assembly is sleeved on the radial outer side of the outer sleeve to be tightly connected with the outer sleeve; The protective cover also includes at least one piezoelectric component, which is located between the outer tube and the inner tube; wherein, when the shock-absorbing pad is squeezed to drive the outer tube to vibrate relative to the inner tube, the vibration of the outer tube relative to the inner tube drives the piezoelectric component to deform and generate electrical energy.

2. The protective cover according to claim 1, characterized in that: The piezoelectric assembly includes an elastic device and a piezoelectric device, and the piezoelectric device is connected to the outer cylinder through the elastic device; wherein the vibration of the outer cylinder relative to the inner cylinder drives the elastic device to undergo elastic deformation, and the elastic deformation of the elastic device drives the piezoelectric assembly to deform and generate electrical energy.

3. The protective cover according to claim 2, characterized in that: The piezoelectric device includes a spring sheet and at least one piezoelectric sheet. The spring sheet is fixedly connected to the outer wall of the inner tube, and there is a gap between the spring sheet and the inner tube. The piezoelectric sheet is attached to a side of the spring sheet facing the inner tube.

4. The protective cover according to claim 3, characterized in that: The spring sheet comprises a first portion, a middle portion and a second portion which are connected in sequence, the first portion extends from the middle portion in a direction away from the second portion, and there is a gap between the middle portion and the inner tube; The free end of the first part is connected to the outer side wall of the inner tube, and the free end of the second part is connected to the outer side wall of the inner tube, so as to realize the fixed connection between the spring sheet and the outer side wall of the inner tube.

5. The protective cover according to claim 4, characterized in that: The piezoelectric device includes a first piezoelectric sheet, a second piezoelectric sheet and a third piezoelectric sheet. The first piezoelectric sheet is attached to the first portion, the second piezoelectric sheet is attached to the middle portion, and the third piezoelectric sheet is attached to the second portion.

6. The protective cover according to claim 3, characterized in that: The elastic device comprises at least one elastic connecting member, a first end of the elastic connecting member is connected to a side of the elastic sheet facing the outer tube, and a second end of the elastic connecting member is connected to an inner side wall of the outer tube.

7. The protective cover according to claim 6, characterized in that: The inner side wall of the outer cylinder comprises a fixing platform for fixing the elastic connecting member, and the second end of the elastic connecting member is connected to the inner side wall of the outer cylinder through the fixing platform.

8. The protective cover according to claim 1, characterized in that: The outer cylinder includes a mounting platform, which is located at the first end of the outer cylinder in the axial direction, and in the radial direction of the outer cylinder, the mounting platform extends from the inner side wall of the outer cylinder toward the inner cylinder; the protective sleeve includes a first gasket, which is located between the inner cylinder and the outer cylinder, and is mounted on the mounting platform.

9. The protective cover according to claim 8, characterized in that: The outer cylinder includes at least one limit card, which is located on a side of the first gasket away from the mounting platform, and in the radial direction of the outer cylinder, the limit card extends from the inner side wall of the outer cylinder toward the inner cylinder; the limit card is used to limit the first gasket from moving toward a side away from the mounting platform.

10. The protective cover according to claim 1, characterized in that: The protective sleeve includes a second gasket, the second gasket is located between the inner side wall of the outer tube and the outer side wall of the inner tube, and the second gasket is located at the second end of the outer tube in the axial direction.

11. The protective cover according to any one of claims 1 to 10, characterized in that: The protective cover comprises a plurality of piezoelectric component groups, and the piezoelectric component group comprises a plurality of the piezoelectric components; Wherein, a plurality of groups of the piezoelectric components are evenly arranged along the axial direction of the inner tube; and / or a plurality of the piezoelectric components in the piezoelectric component group are evenly arranged along the circumferential direction of the inner tube.

12. A shock absorbing assembly, characterized in that: The shock absorbing assembly includes a shock absorbing pad and a protective sleeve as described in any one of claims 1 to 11, and the shock absorbing pad is arranged on the radial outside of the outer tube of the protective sleeve.

13. The shock absorbing assembly according to claim 12, characterized in that: The shock-absorbing pad is interference-fitted with the outer tube.

14. A compressor, characterized in that: The compressor comprises a device body, a fixed base and a shock absorbing assembly as claimed in claim 12 or 13, wherein the shock absorbing assembly is mounted on the fixed base, and the shock absorbing assembly is located between the device body and the fixed base; Wherein, the compressor includes a positioning member, and the equipment body is inserted into the inner cylinder of the protective sleeve in the shock absorbing assembly through the positioning member to achieve the positioning installation of the equipment body.

15. An air conditioning system, characterized in that: The air conditioning system includes the compressor as claimed in claim 14.

Images