Protective cover, shock absorption components, compressor and air conditioning system

Abstract

This disclosure provides a protective sleeve, a vibration damping assembly, a compressor, and an air conditioning system. The protective sleeve includes an inner cylinder and an outer cylinder, with the outer cylinder fitted radially outside the inner cylinder, forming a gap between the inner and outer cylinders. The vibration damping pad of the vibration damping assembly is fitted radially outside the outer cylinder for tight connection with it. The protective sleeve also includes at least one piezoelectric assembly located between the outer cylinder and the inner cylinder. When the vibration damping pad is compressed, causing the outer cylinder to vibrate relative to the inner cylinder, the vibration of the outer cylinder relative to the inner cylinder causes the piezoelectric assembly to deform and generate electrical energy. This disclosure not only provides vibration damping for equipment requiring vibration damping, such as compressors, but also protects the vibration damping pad and converts the mechanical energy of vibration into electrical energy, thereby avoiding the waste of mechanical energy, rationally utilizing the mechanical energy generated by vibration, and achieving mechanical energy recovery.

Description

Technical Field

[0001] This disclosure relates to the field of compressor technology, and more particularly to a protective sleeve, a shock-absorbing component, a compressor, and an air conditioning system. Background Technology

[0002] In air conditioning systems, the compressor, the heart of the entire system, is also a source of vibration, which is considered unavoidable. Air conditioning systems typically use steel sleeves and rubber feet in conjunction with the compressor. The feet prevent rigid impacts to the compressor, providing a degree of vibration damping. The steel sleeve protects the feet from wear caused by the threads of the positioning bolts. As the first part that directly contacts and holds the compressor, the feet are the first point of contact with vibrations transmitted to the system during operation. However, the feet in these technologies only provide limited vibration damping and cannot effectively utilize the 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 existing foot pads can only play a certain role in shock absorption and cannot effectively utilize the above-mentioned vibrations, resulting in a waste of mechanical energy, this disclosure provides a protective cover, a shock absorption component, a compressor, and an air conditioning system.

[0004] According to a first aspect of the present disclosure, a protective sleeve is provided for use in a shock-absorbing assembly. The protective sleeve includes an inner cylinder and an outer cylinder. The outer cylinder is sleeved on the radially outer side of the inner cylinder and forms a gap between the inner cylinder and the outer cylinder. The shock-absorbing pad of the shock-absorbing assembly is sleeved on the radially outer side of the outer cylinder to be tightly connected to the outer cylinder.

[0005] The protective sleeve also includes at least one piezoelectric component located between the outer cylinder and the inner cylinder; wherein, when the shock-absorbing pad is compressed to cause the outer cylinder to vibrate relative to the inner cylinder, the vibration of the outer cylinder relative to the inner cylinder causes the piezoelectric component to deform and generate electrical energy.

[0006] In one optional implementation,

[0007] The piezoelectric component includes an elastic device and a piezoelectric device, wherein 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 causes the piezoelectric component to deform and generate electrical energy.

[0008] In one optional implementation,

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

[0010] In one optional implementation,

[0011] The spring sheet includes a first part, a middle part, and a second part connected in sequence. The first part extends from the middle part in a direction away from the second part, and there is a gap between the middle part and the inner cylinder.

[0012] The free end of the first part is connected to the outer wall of the inner cylinder, and the free end of the second part is connected to the outer wall of the inner cylinder, so as to achieve a fixed connection between the spring piece and the outer wall of the inner cylinder.

[0013] In one optional implementation,

[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 one optional implementation,

[0016] The elastic device includes at least one elastic connector, the first end of which is connected to the side of the spring sheet facing the outer cylinder, and the second end of which is connected to the inner wall of the outer cylinder.

[0017] In one optional implementation,

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

[0019] In one optional implementation,

[0020] The outer cylinder includes a mounting platform located at a first end in the axial direction of the outer cylinder and extending radially from the inner wall of the outer cylinder toward the inner cylinder; the protective sleeve includes a first washer located between the inner cylinder and the outer cylinder and is mounted on the mounting platform.

[0021] In one optional implementation,

[0022] The outer cylinder includes at least one limiting clip located on the side of the first washer away from the mounting platform, and extending radially from the inner wall of the outer cylinder toward the inner cylinder; the limiting clip is used to limit the movement of the first washer toward the side away from the mounting platform.

[0023] In one optional implementation,

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

[0025] In one optional implementation,

[0026] The protective sleeve includes multiple piezoelectric component groups, and each piezoelectric component group includes multiple piezoelectric components;

[0027] The piezoelectric component groups are arranged uniformly along the axial direction of the inner cylinder; and / or, a plurality of piezoelectric components in the piezoelectric component groups are arranged uniformly along the circumferential direction of the inner cylinder.

[0028] According to a second aspect of the present disclosure, a shock-absorbing assembly is provided, the shock-absorbing assembly including a shock-absorbing pad and a protective sleeve as described in any of the first aspects, the shock-absorbing pad being sleeved on the radially outer side of the outer cylinder of the protective sleeve.

[0029] In one alternative embodiment, the shock-absorbing pad is interference-fitted with the outer cylinder.

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

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

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

[0033] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: A new protective sleeve is designed in this disclosure, which can replace the steel sleeve of related technologies to protect the shock-absorbing pad. The protective sleeve includes an inner cylinder, an outer cylinder, and a piezoelectric component, with the piezoelectric component located between the inner and outer cylinders. When the shock-absorbing pad is compressed, its tight connection with the outer cylinder causes the outer cylinder to vibrate relative to the inner cylinder. This vibration causes the piezoelectric component to deform and generate electrical energy. Specifically, when the shock-absorbing component with this protective sleeve is applied to equipment requiring vibration damping, such as compressors, the equipment body can be inserted into the inner cylinder of the protective sleeve via a positioning element (e.g., a positioning bolt). The vibration of the equipment body can compress the shock-absorbing pad, causing the outer cylinder of the protective sleeve to vibrate relative to the inner cylinder, thereby deforming the piezoelectric component between them to generate electrical energy. Furthermore, the protective sleeve can prevent contact between the shock-absorbing pad and the positioning element. When the equipment body causes the positioning element to vibrate, the protective sleeve can prevent the positioning element from damaging the shock-absorbing pad, thus better protecting the shock-absorbing pad. In other words, this disclosure can not only dampen the vibration of equipment such as compressors, but also protect the damping pads. Furthermore, it can convert the mechanical energy of vibration into electrical energy, thereby avoiding the waste of mechanical energy, making reasonable use of the mechanical energy generated by vibration, and realizing the recovery of mechanical energy.

[0034] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

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

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

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

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

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

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

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

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

[0044] Figure label:

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

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

[0047] 121. Fixed platform; 122. Installation platform; 123. Limiting clip;

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

[0049] 1311. Spring clip; 1312. Elastic connector;

[0050] 1311a, Part 1; 1311b, Middle Part; 1311c, Part 2;

[0051] 1321. Piezoelectric element;

[0052] 1321a, First piezoelectric element; 1321b, Second piezoelectric element; 1321c, Third piezoelectric element. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] The following disclosure provides numerous different embodiments or examples for implementing various aspects of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0055] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can 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 in the text will be interpreted accordingly.

[0056] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

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

[0058] In order to solve the technical problem that existing foot pads can only play a certain role in shock absorption and cannot effectively utilize the above-mentioned vibrations, resulting in a waste of mechanical energy, this disclosure provides a protective cover, a shock absorption component, a compressor, and an air conditioning system.

[0059] This disclosure introduces a novel protective sleeve that replaces the steel sleeves of related technologies, serving to protect the shock-absorbing pad. The protective sleeve includes an inner cylinder, an outer cylinder, and a piezoelectric component located between the inner and outer cylinders. When the shock-absorbing pad is compressed, its tight connection to the outer cylinder causes the outer cylinder to vibrate relative to the inner cylinder. This vibration causes the piezoelectric component to deform, generating electrical energy. When the shock-absorbing component with this protective sleeve is used in equipment requiring vibration damping, such as compressors, the equipment body can be inserted into the inner cylinder of the protective sleeve via a positioning element (e.g., a positioning bolt). The vibration of the equipment body compresses the shock-absorbing pad, causing the outer cylinder of the protective sleeve to vibrate relative to the inner cylinder, thereby deforming the piezoelectric component between them to generate electrical energy. Furthermore, the protective sleeve prevents contact between the shock-absorbing pad and the positioning element. When the equipment body causes the positioning element to vibrate, the protective sleeve prevents damage to the shock-absorbing pad, thus better protecting it. In other words, this disclosure can not only dampen the vibration of equipment such as compressors, but also protect the damping pads. Furthermore, it can convert the mechanical energy of vibration into electrical energy, thereby avoiding the waste of mechanical energy, making reasonable use of the mechanical energy generated by vibration, and realizing the recovery of mechanical energy.

[0060] In one exemplary embodiment, a protective cover, a shock-absorbing assembly, and a compressor, etc., are provided as devices requiring shock absorption. Reference is made to... Figures 1 to 3 As shown, the protective sleeve 10 can be applied to vibration damping components, which can be applied to equipment requiring vibration damping, such as compressors. The protective sleeve 10 includes an inner cylinder 11 and an outer cylinder 12. The outer cylinder 12 is fitted radially outside the inner cylinder 11, forming a gap between the inner cylinder 11 and the outer cylinder 12, and the inner cylinder 11 and outer cylinder 12 are elastically connected. The elastic connection between the inner cylinder 11 and the outer cylinder 12 can be achieved using elastic elements such as springs or rubber. For example, in the protective sleeve 10 of a small air conditioner compressor, multiple rubber pads are evenly distributed between the outer cylinder 12 and the inner cylinder 11, which not only ensures the relative position stability of the outer cylinder 12 and the inner cylinder 11 but also provides a buffering effect during vibration.

[0061] It should be noted that the inner cylinder 11 can be made of alloy steel, carbon steel, or other materials; there is no limitation on its material composition. For example, in some industrial compressor applications, the inner cylinder 11 is made of high-strength alloy steel, whose excellent mechanical properties can withstand the various forces generated during compressor operation. The dimensions of the inner cylinder 11 are designed according to the actual installation requirements of the compressor, and its inner diameter fits tightly with the compressor's mounting location to ensure a stable connection. Furthermore, the outer cylinder 12 can be made of the same material as the inner cylinder 11, or they can be different; there is no limitation on its material composition.

[0062] The vibration damping pad 20 of the vibration damping assembly is fitted radially outward of the outer cylinder 12 for a tight connection. The vibration damping pad 20 can be made of, for example, a highly elastic, high-damping rubber material, and its shape and size are designed according to the weight and vibration characteristics of the compressor. For example, in the vibration damping assembly of a large industrial refrigeration compressor, the vibration damping pad 20 has a large bottom area to increase the contact area with the ground and improve stability. Simultaneously, it has a complex honeycomb structure inside, which can effectively absorb and dissipate the mechanical energy generated by the compressor's operation while bearing its weight.

[0063] The protective sleeve 10 also includes at least one piezoelectric component 13, located between the outer cylinder 12 and the inner cylinder 11. When the shock-absorbing pad 20 is compressed, causing 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 causes the piezoelectric component 13 to deform and generate electrical energy. This embodiment not only provides shock absorption for equipment requiring vibration damping, such as compressors, but also protects the shock-absorbing pad 20. Furthermore, it converts 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 component 13 includes an elastic device 131 and a piezoelectric device 132. Both the elastic device 131 and the piezoelectric device 132 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. When the shock-absorbing pad 20 is compressed to cause 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, which in turn causes the piezoelectric device 132 to deform and generate electrical energy.

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

[0066] When the vibration damping assembly is applied to the compressor, vibrations generated during compressor operation are transmitted to the outer cylinder 12 of the protective sleeve 10 via the damping pad 20. Since the outer cylinder 12 and inner cylinder 11 are elastically connected, the outer cylinder 12 will vibrate relative to the inner cylinder 11. For example, vibrations caused by the compressor starting and stopping, or by imbalances in internal components during operation, will cause the outer cylinder 12 to vibrate. 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 via the elastic device 131, the deformation of the elastic device 131 will cause the piezoelectric device 132 to deform. According to the piezoelectric effect, the piezoelectric device 132 generates electrical energy during deformation. For example, during normal compressor operation, continuous vibration causes the piezoelectric element 1321 in the piezoelectric device 132 to continuously undergo minute deformations, thereby continuously generating electrical energy. This electrical energy can be collected and utilized. For example, a battery and power supply line can be installed in the compressor. The electrical energy generated by the piezoelectric element 1321 can be transmitted to the battery for storage. The battery can supply power to some small sensors or monitoring equipment on the compressor through the power supply line.

[0067] The protective sleeve 10 of this embodiment can replace the steel sleeve of related technologies to protect the shock-absorbing pad 20. The protective sleeve 10 includes an inner cylinder 11, an outer cylinder 12, and a piezoelectric assembly 13. The piezoelectric assembly 13 includes an elastic device 132 located between the inner cylinder 11 and the outer cylinder 12. When the shock-absorbing pad 20 is compressed, causing 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 causing the piezoelectric device 132 to deform and generate electrical energy.

[0068] When the shock-absorbing assembly equipped with the protective sleeve 10 is applied to equipment requiring vibration damping, such as compressors, the main body of the equipment can be inserted into the inner cylinder 11 of the protective sleeve 10 via a positioning element (e.g., a positioning bolt). The vibration of the main body of the equipment can compress the shock-absorbing pad 20, which in turn causes the outer cylinder 12 of the protective sleeve 10 to vibrate relative to the inner cylinder 11. This causes the elastic device 131 between the two to undergo elastic deformation, thereby driving the piezoelectric device 132 to deform and generate electrical energy. Moreover, the protective sleeve 10 can prevent contact between the shock-absorbing pad 20 and the positioning element. When the main body of the equipment drives the positioning element to vibrate, the protective sleeve 10 can prevent the positioning element from damaging the shock-absorbing pad 20, thus better protecting the shock-absorbing pad 20.

[0069] In other words, this embodiment can not only dampen equipment such as compressors that require vibration, but also protect the vibration damping pad 20. Furthermore, it can convert the mechanical energy of vibration into electrical energy, thereby avoiding the waste of mechanical energy, making reasonable use of the mechanical energy generated by vibration, and realizing the recovery of mechanical energy.

[0070] In one exemplary embodiment, reference Figures 1 to 5 As shown, a protective sleeve 10, a shock-absorbing assembly, and a compressor, etc., are provided. In this embodiment, the piezoelectric device 132 of the protective sleeve 10 may include a spring 1321, which may be made of a metal with stable elasticity and a 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, which is attached to the side of the spring 1321 facing the inner cylinder 11.

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

[0072] The free end of the first part 1311a can be connected to the outer wall of the inner cylinder 11 by welding or high-strength bolts, or by other means, 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 are not limited. The design of the first part 1311a is based on the ability to generate appropriate elastic deformation under external force. The free end of the second part 1311c is also connected to the outer wall of the inner cylinder 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 enable the spring piece 1321 to exert an elastic buffering effect evenly when subjected to vibrations from all directions.

[0073] The gap between the middle part 1311b and the inner cylinder 11 provides space for the elastic deformation of the spring piece 1321. The size of the gap is determined according to the application environment (e.g., the vibration amplitude of the compressor) and the elastic coefficient of the spring piece 1321 to ensure that the spring piece 1321 will not collide with the inner cylinder 11 under normal use.

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

[0075] The piezoelectric element 1321 and the spring element 1321 can be directly fixed together with adhesive, or they can be fixed together in other ways, without limitation. When the first part 1311a of the spring element 1321 undergoes elastic deformation during vibration, the first piezoelectric element 1321a deforms accordingly, generating electrical energy according to the piezoelectric effect, thus converting mechanical energy into electrical energy. When the second part 1311c of the spring element 1321 deforms due to vibration, the second piezoelectric element 1321b deforms accordingly, generating electrical energy according to the piezoelectric effect, thus converting 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. Therefore, the second piezoelectric element 1321b can also be designed to be adapted so that it can capture the vibration of the middle part 1311b and convert mechanical energy into electrical energy.

[0076] In this embodiment, when the shock-absorbing assembly with the protective sleeve 10 is applied to the compressor, when the compressor vibrates during operation, the vibration is first transmitted to the shock-absorbing pad 20. The shock-absorbing pad 20 absorbs and dissipates some of the vibration energy through its own elasticity and damping characteristics, reducing the transmission of vibration to the protective sleeve 10. The remaining vibration is transmitted to the outer cylinder 12 of the protective sleeve 10, and then further buffered by the spring sheet 1321. The first part 1311a, the middle part 1311b, and the second part 1311c of the spring sheet 1321 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 sheet 1321, the first piezoelectric sheet 1321a, the second piezoelectric sheet 1321b, and the third piezoelectric sheet 1321c attached to different parts of the spring sheet 1321 also deform accordingly. According to the piezoelectric effect, these piezoelectric sheets 1321 convert mechanical energy into electrical energy. For example, when the compressor starts or stops and generates significant vibration, the deformation of the spring 1321 is large, and the electrical energy generated by the piezoelectric element 1321 also increases accordingly. This electrical energy can be collected and stored through a suitable circuit to power some small monitoring devices on the compressor (such as temperature sensors, vibration sensors, etc.) or other low-power electronic devices, thus realizing energy recovery and utilization.

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

[0078] The first end of the elastic connector 1312 is connected to the side of the spring piece 1321 facing the outer cylinder 12, and the second end of the elastic connector 1312 is connected to the inner wall of the outer cylinder 12 to achieve 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 cylinder 12 and the spring piece 1321 can be by adhesive bonding, welding, or other connection methods, and there is no limitation on this.

[0079] The inner wall of the outer cylinder 12 includes a fixing platform 121 for fixing the elastic connector 1312. 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. This can improve the assembly efficiency and 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] Each spring piece 1321 can have one or more elastic devices 131 between it and the outer cylinder 12, depending on the actual installation space, elasticity requirements, and the specific form of the elastic devices 131. For example, the elastic device 131 can include a spring, and three springs can be installed between each spring piece 1321 and the outer cylinder 12 to ensure the required cushioning effect. Moreover, when more than one elastic device 131 is provided, if the number increases over time and one elastic device 131 is damaged, the others can still provide a certain degree of cushioning.

[0081] When the elastic device 131 may include a spring, multiple connection points may be provided at the first end of each spring. Each connection point of the spring on the spring sheet 1321 may be reinforced to ensure a strong connection. The fixing platform 121 on the inner wall of the outer cylinder 12 may be an integrally formed structure during the manufacturing of the outer cylinder 12. The fixing platform 121 may have a groove matching the outer diameter of the spring to improve the reliability of the connection. The depth of the groove can 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 facilitates installation and greatly improves the reliability of the connection between the spring and the outer cylinder 12, effectively preventing the spring from falling off during long-term vibration.

[0082] In this embodiment, when the shock-absorbing assembly with protective sleeve 10 is applied to the compressor, when the compressor operates and generates vibration, the vibration is first transmitted to the shock-absorbing pad 20. The shock-absorbing pad 20 absorbs and dissipates a portion of the vibration energy through its own elasticity and damping characteristics, and then transmits the remaining vibration to the outer cylinder 12. After receiving the vibration, the outer cylinder 12 further transmits the vibration to the spring 1321 through the elastic connector 1312 (e.g., a spring). During this process, the spring is compressed or stretched according to the direction and intensity of the vibration, buffering and absorbing the vibration energy, preventing the spring 1321 from being damaged by excessive instantaneous impact. After receiving the vibration buffered by the spring, the first part 1311a, the middle part 1311b, and the second part 1311c of the spring 1321 each deform to different degrees according to the vibration situation, further buffering the vibration. For example, when the compressor starts and generates a large impact vibration, the spring and the spring 1321 work together to effectively limit the deformation amplitude of the spring 1321, protecting the spring 1321 and the piezoelectric sheet 1321 attached to it. During the deformation of the spring 1321 due to vibration, the piezoelectric sheets 1321 attached to different parts of the spring 1321 deform along with the deformation of the spring 1321, thereby generating electrical energy. This connection and working method between the spring and the spring 1321 indirectly ensures that the piezoelectric sheet 1321 operates within a suitable deformation range by stabilizing the deformation of the spring 1321. If the spring 1321 deforms excessively, it may exceed its elastic limit and be damaged, affecting the energy recovery function. The buffering effect of the spring allows the piezoelectric sheet 1321 to continuously and stably convert mechanical energy into electrical energy within the normal vibration range of the compressor.

[0083] In one exemplary embodiment, reference Figures 1 to 6As shown, a protective sleeve 10, a shock-absorbing assembly, and a compressor, etc., are provided. In this embodiment, the outer cylinder 12 of the protective sleeve 10 may include a mounting platform 122. The mounting platform 122 is located at the first end of the outer cylinder 12 in the axial direction, and extends radially from the inner sidewall of the outer cylinder 12 toward the inner cylinder 11. The protective sleeve 10 includes a first washer 14, which is located between the inner cylinder 11 and the outer cylinder 12, and is mounted on the mounting platform 122 to ensure stable installation of the first washer 14. The first washer 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 washer 14 is located. This effectively ensures that the piezoelectric assembly 13 between the outer cylinder 12 and the inner cylinder 11 is not affected by external debris, thus better ensuring the long-term and normal use of the piezoelectric assembly 13.

[0084] It should be noted that when the shock-absorbing assembly with protective sleeve 10 is applied to a compressor, the first axial end of the outer cylinder 12 is generally vertically upward. If the first washer 14 is not provided, 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, if it is trapped in the elastic connector 1312 (e.g., a spring) or between the spring sheet 1321 and the inner cylinder 11, it can easily affect the elastic deformation of the elastic connector 1312 and the spring sheet 1321, which not only affects the shock absorption effect but also affects the conversion of mechanical energy to electrical energy. In this embodiment, by providing the first washer 14, the above situation can be effectively avoided, further improving the reliability of the piezoelectric assembly 13 and the overall reliability of the shock-absorbing assembly.

[0085] The outer cylinder 12 includes at least one limiting clip 123 located on the side of the first washer 14 facing away from the mounting platform 122. The limiting clip 123 extends radially from the inner wall of the outer cylinder 12 toward the inner cylinder 11. The limiting clip 123 is used to limit the movement of the first washer 14 toward the side away from the mounting platform 122, thereby better ensuring the reliable fixation of the first washer 14.

[0086] The outer cylinder 12 can be made of a high-strength metal material, such as aluminum alloy, to provide sufficient strength and stability. The outer cylinder 12 can be cylindrical, and its dimensions can be determined according to the installation space and vibration damping requirements of the compressor; there is no limitation on this. A mounting platform 122 is provided at the first axial end of the outer cylinder 12. The mounting platform 122 extends radially from the inner wall of the outer cylinder 12 towards the inner cylinder 11. The dimensions of the mounting platform 122 can be set according to actual needs; there is no limitation on this.

[0087] It should be noted that, since the vibration of the compressor will cause vibration between the outer cylinder 12 and the inner cylinder 11, the radial distance between the mounting platform 122 and the outer side wall of the inner cylinder 11 needs to ensure that the mounting platform 122 and the inner cylinder 11 do not have a rigid collision.

[0088] In addition, the outer cylinder 12 may also include at least one limiting clip 123 (for example, three clips may be evenly distributed along the circumference of the outer cylinder 12). The limiting clip 123 is located near the first axial end of the outer cylinder 12 and extends radially from the inner wall of the outer cylinder 12 inward. 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 limiting clip 123 facing the inner cylinder 11. Based on this, the installation of the first washer 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 cylinder 11) may be provided with a curved or bent portion, that is, the end of the limit card 123 may be slightly bent or bent towards the mounting platform 122 to better limit and better prevent the first washer 14 from falling off.

[0090] The inner cylinder 11 can also be made of metal (such as carbon steel), and its inner diameter is adapted to the positioning parts of the compressor. Its length (i.e., axial dimension) can be similar to or greater than the length of the outer cylinder 12; there are no limitations on this. The inner cylinder 11 can be connected to the compressor by fixing with positioning bolts (as positioning parts) or by positioning and connecting with other positioning parts to ensure a stable connection between the inner cylinder 11 and the compressor during operation.

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

[0092] When equipment requiring vibration damping, such as compressors, operates in various environments, external contaminants such as dust and debris may be present. In this embodiment, a mounting platform 122 and a first washer 14 are provided at the first axial end (usually vertically upward) of the outer cylinder 12. The first washer 14 is tightly mounted on the mounting platform 122, effectively preventing contaminants from entering the gap between the outer cylinder 12 and the inner cylinder 11 from this direction. This acts as a barrier, protecting the internal elastic connector 1312, spring sheet 1321, and piezoelectric assembly 13.

[0093] The limiting clip 123 is located on the side of the first washer 14 facing away from the mounting platform 122, extending from the inner wall of the outer cylinder 12 towards the inner cylinder 11. When the first washer 14 is installed on the mounting platform 122, the limiting clip 123 limits its movement, preventing it from moving away from the mounting platform 122 when subjected to vibration, gravity, or other external forces. This limiting effect ensures that the first washer 14 remains in the correct position during long-term operation, continuously performing its sealing function. Of course, the first washer 14 can also buffer the vibration of the outer cylinder 12 relative to the inner cylinder 11, preventing 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 also include a second washer 15. The second washer 15 is located between the inner wall of the outer cylinder 12 and the outer wall of the inner cylinder 11, and the second washer 15 is located at the second end of the outer cylinder 12 in the axial direction. The first end and the second end are two opposite ends in the axial direction of the outer cylinder 12.

[0095] The second washer 15 and the first washer 14 can be made of the same or different materials, without limitation. The second washer 15 can also be constructed as a ring, located between the inner wall of the outer cylinder 12 and the outer wall of the inner cylinder 11, and at the second end of the outer cylinder 12 in the axial direction. In this way, the second washer 15 and the first washer 14 respectively seal and protect the internal space from both ends of the outer cylinder 12 in the axial direction, so as to achieve a better sealing effect. In addition, the second washer 15 can also play a certain role in buffering the vibration of the outer cylinder 12 relative to the inner cylinder 11, so as to avoid the rigid collision between the outer cylinder 12 and the inner cylinder 11 at its second end. The cooperation of the first washer 14 and the second washer 15 can provide a more uniform buffering effect 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, maintaining stable power conversion efficiency, and providing a more continuous and stable power supply to the small electronic devices on the compressor.

[0096] In one exemplary embodiment, reference Figures 1 to 6 As shown, a protective sleeve 10, a shock-absorbing assembly, and a compressor, etc., are provided. In this embodiment, the protective sleeve 10 may include multiple piezoelectric component groups 13, each group comprising multiple piezoelectric components 13. Each piezoelectric component 13 may include an elastic device 131 and a piezoelectric device 132, both located between the outer cylinder 12 and the inner cylinder 11. The piezoelectric device 132 is connected to the outer cylinder 12 via the elastic device 131.

[0097] In each group of piezoelectric components 13, multiple piezoelectric components 13 can be evenly arranged along the circumference of the inner cylinder 11. That is, multiple elastic devices 131 are evenly arranged along the circumference of the inner cylinder 11, and multiple piezoelectric devices 132 corresponding to the multiple elastic devices 131 are also evenly arranged along the circumference of the inner cylinder 11. This can achieve a more balanced shock absorption and buffering effect, and can better convert mechanical energy into electrical energy.

[0098] The multiple sets of piezoelectric components 13 are evenly arranged along the axial direction of the inner cylinder 11, thereby achieving a more balanced shock absorption and buffering effect, and better converting mechanical energy into electrical energy. It should be noted that while the multiple sets of piezoelectric components 13 are evenly arranged along the axial direction of the inner cylinder 11, each set of piezoelectric components 13 can also have multiple piezoelectric components 13 evenly arranged along the circumference of the inner cylinder 11. Based on this, a more balanced shock absorption and buffering effect can be achieved, and better conversion of mechanical energy into electrical energy can be achieved.

[0099] In some implementations...

[0100] The protective sleeve 10 includes an outer cylinder 12, an inner cylinder 11, and three sets of piezoelectric components 13 positioned between the outer cylinder 12 and the inner cylinder 11. Each set of piezoelectric components 13 may include four piezoelectric components 13. The three sets of piezoelectric components 13 are evenly arranged along the axial direction of the protective sleeve 10. The four piezoelectric components 13 in each set of piezoelectric components 13 are evenly arranged along the circumference of the protective sleeve 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 sheet 1321, which may include a first portion 1311a, an intermediate portion 1311b, and a second portion 1311c connected in sequence. The piezoelectric device 132 may include three piezoelectric sheets 1321, referred to as the first piezoelectric sheet 1321a, the second piezoelectric sheet 1321b, and the 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 intermediate portion 1311b, and the third piezoelectric sheet 1321c is attached to the second portion 1311c.

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

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

[0104] The protective sleeve 10 of this embodiment can replace the steel sleeve in the related technology. It 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 indirectly enhance the vibration reduction effect of the shock-absorbing component.

[0105] The inner cylinder 11 has a spring plate 1321 connected to the outer cylinder 12 via a spring. When the outer cylinder 12 vibrates, the force is transmitted to the spring plate 1321 through the spring, causing the spring plate 1321 to deform. The piezoelectric sheet 1321 attached to the inner side of the spring plate 1321 will also deform synchronously. Based on the characteristics of piezoelectric materials, deformation generates electrical energy. Thus, the continuous vibration of the outer cylinder 12 will cause the piezoelectric sheet 1321 to deform continuously in different directions. The mechanical energy generated by the vibration of the compressor will be continuously converted into electrical energy through the piezoelectric sheet 1321.

[0106] The inner wall of the outer cylinder 12 may be provided with square (e.g., rectangular) fixing platforms 121 for fixing the connecting springs. Four fixing platforms 121 may be provided, each extending axially along the outer cylinder 12 to accommodate multiple springs and secure all springs. It should be noted that the fixing platforms 121 may also include three platform groups, each group comprising four square platforms. Each square platform corresponds to three springs of an elastic device 131, used to fix the second ends of these three springs. Of course, the fixing platforms 121 can also be in other forms, and this is not limited.

[0107] The protective sleeve 10 may also be provided with a first washer 14 and a second washer 15, which are the upper and lower washers of the protective sleeve 10, respectively. They are used to seal the entire protective sleeve 10 and prevent the outer cylinder 12 from rigidly colliding with the inner cylinder 11 and causing abnormal noise.

[0108] Among them, the first end of the outer cylinder 12 (i.e. Figure 2An annular mounting platform 122 can be provided at the upper end (as shown). In the radial direction of the outer cylinder 12, the mounting platform 122 extends from the inner wall of the outer cylinder 12 toward the inner cylinder 11. A first washer 14 is located between the inner cylinder 11 and the outer cylinder 12, and the first washer 14 is mounted on the mounting platform 122 to ensure stable installation of the first washer 14. The outer cylinder 12 includes at least one limiting clip 123, which is located on the side of the first washer 14 away from the mounting platform 122. In the radial direction of the outer cylinder 12, the limiting clip 123 extends from the inner wall of the outer cylinder 12 toward the inner cylinder 11. The limiting clip 123 is used to limit the movement of the first washer 14 toward the side away from the mounting platform 122, to better ensure reliable fixation of the first washer 14. Four limiting clips 123 can be provided, and the four limiting clips 123 can be evenly distributed along the circumference of the outer cylinder 12 to better limit the first washer 14 and better prevent displacement of the first washer 14.

[0109] It should be noted that the installation platform 122 is constructed as an integral ring structure, which can better ensure the stable placement of the first washer 14. Multiple dispersed limiting clips 123 are provided above the first washer 14. Compared to the integral ring limiting structure, the dispersed limiting clips 123 can both limit the movement and facilitate the installation of the first washer 14.

[0110] The shock-absorbing assembly includes a protective sleeve 10 and a shock-absorbing pad 20. The protective sleeve 10 replaces the steel sleeve of related technologies, thus achieving the same protective effect as the steel sleeve for the shock-absorbing pad 20, while also converting the mechanical energy generated by vibration into electrical energy. In this embodiment, the shock-absorbing pad 20 is fitted radially outside the outer cylinder 12 of the protective sleeve 10, and the outer cylinder 12 and the inner wall of the shock-absorbing pad 20 can be interference-fitted to better prevent embedding, ensure the reliability between the protective sleeve 10 and the shock-absorbing pad 20, and prevent them from detaching from each other.

[0111] The compressor may include a device body and a fixed base. In related technologies, the device body is mounted on the fixed base via foot pads with steel sleeves. In this embodiment, a protective sleeve 10 is used instead of a steel sleeve. The shock-absorbing component is mounted on the fixed base and located between the device body and the fixed base, making close contact with both. The device body can be positioned and installed by inserting a positioning component (e.g., a positioning bolt) into the inner cylinder 11 of the protective sleeve 10. The protective sleeve 10 prevents the threads of the positioning bolt from directly contacting the shock-absorbing pad 20, thus avoiding thread wear on the shock-absorbing pad 20.

[0112] When the compressor starts running, irregular vibrations will inevitably occur due to the operation of the internal mechanism of the compressor body. As the first contact part of the equipment body, the vibration will be transmitted to the shock-absorbing pad 20 immediately, and the shock-absorbing pad 20 will deform accordingly. At this time, the outer cylinder 12 of the protective sleeve 10 will be displaced under the pressure of the shock-absorbing pad 20. The displacement of the outer cylinder 12 will generate force through the spring and be transmitted to the spring piece 1321 on the inner cylinder 11, causing the spring piece 1321 to deform. The piezoelectric piece 1321 attached to the inner side of the spring piece 1321 will also deform to generate electrical energy, thus realizing the conversion of mechanical energy into electrical energy while absorbing vibration.

[0113] In other words, this embodiment can not only dampen equipment such as compressors that require vibration, but also protect the vibration damping pad 20. Furthermore, it can convert the mechanical energy of vibration into electrical energy, thereby avoiding the waste of mechanical energy, making reasonable use of the mechanical energy generated by vibration, and realizing the recovery of mechanical energy.

[0114] It should be noted that the vibration damping component of this embodiment can be applied not only to compressors, but also to other equipment with vibration damping requirements (such as semiconductor manufacturing equipment, machine tool equipment, water pumps, etc.), and there is no limitation thereto.

[0115] In one exemplary embodiment, an air conditioning system (not shown in the figure) is provided. This air conditioning system may include the compressor described above. The air conditioning system of this embodiment can effectively solve the problem caused by compressor vibration and can achieve a certain degree of energy recovery. The recovered electrical energy can be used by sensors and other devices in the air conditioning system, thereby improving the overall performance, comfort, and energy efficiency of the air conditioning system, and has good application prospects. It should be noted that in actual production and application, the parameters of the compressor's vibration damping components can be further optimized according to different models and power levels of air conditioning systems to achieve better results.

[0116] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0117] It should be noted that the terms "one implementation," "embodiment," "exemplary embodiment," and "some embodiments" used in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0118] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0119] The above embodiments are merely preferred embodiments provided to fully illustrate this application, and the scope of protection of this application is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on this application are all within the scope of protection of this application.

Claims

1. A protective sleeve applied to a shock-absorbing assembly, characterized in that, The protective sleeve includes an inner cylinder and an outer cylinder. The outer cylinder is fitted on the radially outer side of the inner cylinder and forms a gap between the inner cylinder and the outer cylinder. The shock-absorbing pad of the shock-absorbing assembly is fitted on the radially outer side of the outer cylinder to be tightly connected to the outer cylinder. The protective sleeve also includes at least one piezoelectric component, which is located between the outer cylinder and the inner cylinder; wherein, when the shock-absorbing pad is compressed to cause the outer cylinder to vibrate relative to the inner cylinder, the vibration of the outer cylinder relative to the inner cylinder causes the piezoelectric component to deform and generate electrical energy; The piezoelectric component 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 causes the piezoelectric component to deform and generate electrical energy; The piezoelectric device includes a spring and at least one piezoelectric sheet. The spring is fixedly connected to the outer wall of the inner cylinder, and there is a gap between the spring and the inner cylinder. The piezoelectric sheet is attached to the side of the spring facing the inner cylinder. The spring sheet includes a first part, a middle part, and a second part connected in sequence. The first part extends from the middle part in a direction away from the second part, and there is a gap between the middle part and the inner cylinder. The free end of the first part is connected to the outer wall of the inner cylinder, and the free end of the second part is connected to the outer wall of the inner cylinder, so as to achieve a fixed connection between the spring piece and the outer wall of the inner cylinder. 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.

2. The protective sleeve according to claim 1, characterized in that, The elastic device includes at least one elastic connector, the first end of which is connected to the side of the spring sheet facing the outer cylinder, and the second end of which is connected to the inner wall of the outer cylinder.

3. The protective sleeve according to claim 2, characterized in that, The inner wall of the outer cylinder includes a fixing platform for fixing the elastic connector, and the second end of the elastic connector is connected to the inner wall of the outer cylinder through the fixing platform.

4. The protective sleeve according to claim 1, characterized in that, The outer cylinder includes a mounting platform located at a first end in the axial direction of the outer cylinder and extending radially from the inner wall of the outer cylinder toward the inner cylinder; the protective sleeve includes a first washer located between the inner cylinder and the outer cylinder and is mounted on the mounting platform.

5. The protective sleeve according to claim 4, characterized in that, The outer cylinder includes at least one limiting clip located on the side of the first washer away from the mounting platform, and extending radially from the inner wall of the outer cylinder toward the inner cylinder; the limiting clip is used to limit the movement of the first washer toward the side away from the mounting platform.

6. The protective sleeve according to claim 1, characterized in that, The protective sleeve includes a second washer located between the inner wall of the outer cylinder and the outer wall of the inner cylinder, and the second washer is located at the second end of the outer cylinder in the axial direction.

7. The protective sleeve according to any one of claims 1-6, characterized in that, The protective sleeve includes multiple piezoelectric component groups, and each piezoelectric component group includes multiple piezoelectric components; The piezoelectric component groups are arranged uniformly along the axial direction of the inner cylinder; and / or, a plurality of piezoelectric components in the piezoelectric component groups are arranged uniformly along the circumferential direction of the inner cylinder.

8. A shock-absorbing component, characterized in that, The shock-absorbing assembly includes a shock-absorbing pad and a protective sleeve as described in any one of claims 1-7, wherein the shock-absorbing pad is fitted on the radially outer side of the outer cylinder of the protective sleeve.

9. The shock absorption assembly according to claim 8, characterized in that, The shock-absorbing pad is interference-fitted with the outer cylinder.

10. A compressor, characterized in that, The compressor includes a device body, a fixed base, and a shock-absorbing assembly as described in claim 8 or 9, wherein the shock-absorbing assembly is mounted on the fixed base and is located between the device body and the fixed base; The compressor includes a positioning component, and the device body is inserted into the inner cylinder of the protective sleeve in the shock-absorbing assembly through the positioning component to achieve the positioning and installation of the device body.

11. An air conditioning system, characterized in that, The air conditioning system includes the compressor as described in claim 10.

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