Compressor, thermal management system and vehicle

Abstract

The invention discloses a compressor, a heat management system and a vehicle, the compressor comprises a shell, a compression unit and a driving unit, the compression unit and the driving unit are arranged on the shell, the driving unit is in transmission connection with the compression unit, the shell is provided with a silencing structure, and the silencing structure comprises a pit formed by sinking from the inner surface of the shell. According to the compressor disclosed by the embodiment of the invention, the silencing structure is arranged on the shell of the compressor so as to perform silencing on gas and ensure the comfort of a user, and the silencing structure comprises the pit formed by sinking from the inner surface of the shell, namely, the silencing structure is directly formed on the shell, so that the setting cost can be reduced, and the assembling time of the compressor can be shortened; and moreover, the number of moving parts is small, assembling is easy, vibration noise is low, the overall structure size is small, the energy conversion process is smooth, the using effect is better, and the application range is wider.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle manufacturing, and in particular to a compressor, a thermal management system and a vehicle. Background Art

[0002] Scroll compressors have become the preferred compressor type in passenger car air-conditioning systems due to their small size and high efficiency. With the vigorous promotion and development of new energy vehicles, new energy vehicle air-conditioning systems have also put forward higher requirements for scroll compressors. Scroll compressors are mainly composed of a movable scroll and a stationary scroll that mesh with each other. The compressed gas or refrigerant can finally be discharged continuously from the axial exhaust hole in the center of the stationary scroll. However, since the exhaust port of the stationary scroll is relatively small, a large aerodynamic noise will be generated when the gas is discharged.

[0003] In the related art, a silencer hood is provided in the compressor, and two tortuous silencer flow channels are provided in the silencer hood and an annular silencer structure with an opening or a through hole is provided, so that the high-pressure gas discharged from the exhaust port of the static scroll disk can achieve repeated pressure increase and expansion and change of flow direction in its silencer chamber, thereby achieving silence. However, this method requires adding another silencer structure in the silencer hood, which has complex processing and high installation cost. At the same time, the silencer structure is provided with multiple screw holes, which increases assembly time and reduces the assembly efficiency of the compressor, and there is room for improvement. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art to at least some extent. To this end, one object of the present invention is to provide a compressor that can reduce the installation cost while ensuring the silencing effect, and can ensure the compressor assembly efficiency and improve the user comfort.

[0005] According to an embodiment of the present invention, a compressor includes a shell, a compression unit and a drive unit arranged on the shell, the drive unit is transmission-connected to the compression unit, the shell is provided with a silencer structure, and the silencer structure includes a pit formed by being recessed from the inner surface of the shell.

[0006] According to the compressor of the embodiment of the present invention, a silencer structure is provided on the outer shell of the compressor to silence the gas and ensure user comfort, and the silencer structure includes a pit formed by a depression from the inner surface of the outer shell, that is, the silencer structure is directly formed on the outer shell, which can reduce the setting cost, shorten the compressor assembly time, and improve the compressor assembly efficiency. In addition, the compressor adopts a multi-tooth vortex structure, which utilizes the characteristics of multiple teeth. Compared with traditional positive displacement compressors, the compressor has fewer moving parts, simpler assembly, less vibration and noise, smaller overall structural size, smoother energy conversion process, better use effect, and wider range of applications.

[0007] In the compressor according to some embodiments of the present invention, the silencer structure conforms to the acoustic black hole model.

[0008] According to the compressor of some embodiments of the present invention, the compression unit is arranged in the shell, the shell has an exhaust cavity, the exhaust cavity is connected to the exhaust port of the compression unit, and the inner surface of the exhaust cavity is provided with the silencer structure.

[0009] According to the compressor of some embodiments of the present invention, the outer shell includes an end cover, which is arranged on the exhaust side of the compression unit, the exhaust chamber is located inside the end cover, the inner end surface of the end cover is opposite to the compression unit, and is provided with the silencer structure.

[0010] According to the compressor of some embodiments of the present invention, the inner end surface includes a first inner end surface and a second inner end surface, the first inner end surface is opposite to the exhaust port of the compression unit, the second inner end surface surrounds the first inner end surface, and at least one of the first inner end surface and the second inner end surface is provided with the silencer structure.

[0011] In the compressor according to some embodiments of the present invention, the second inner end surface is closer to the compression unit than the first inner end surface, and a step surface is connected between the second inner end surface and the first inner end surface.

[0012] In the compressor according to some embodiments of the present invention, the number of the noise reduction structures is at least three.

[0013] In the compressor according to some embodiments of the present invention, the shell has a containing cavity in it, the driving unit is arranged in the containing cavity, and the surrounding wall of the containing cavity is provided with the sound-absorbing structure.

[0014] In a compressor according to some embodiments of the present invention, the drive unit includes a stator assembly, which includes a first part, a second part, and a third part distributed along the axial direction, the second part is arranged between the first part and the third part, and the first part and the third part radially protrude from the outer circumferential surface of the second part.

[0015] In the compressor according to some embodiments of the present invention, the first part is interference fit with the peripheral wall; or the third part is interference fit with the peripheral wall; or the second part is spaced apart from the peripheral wall; or the silencer structure provided on the peripheral wall is radially opposite to the second part.

[0016] In the compressor according to some embodiments of the present invention, at least one of the first portion and the third portion has a gap with the peripheral wall.

[0017] In the compressor according to some embodiments of the present invention, a groove is provided on an outer peripheral surface of at least one of the first portion and the third portion, and a gap is formed between the groove and the peripheral wall.

[0018] According to the compressor of some embodiments of the present invention, the groove portion includes a first notch, a second notch and a third notch distributed along the circumference of the stator assembly.

[0019] Among them, the width dimension of the first notch is smaller than the width dimension of the second notch; or, the width dimension of the third notch is smaller than the width dimension of the second notch; or, the width dimension of the first notch is the same as the width dimension of the third notch; or, the width dimension of the first notch is different from the width dimension of the third notch; or, at least one of the first notch, the second notch and the third notch is in an arc shape.

[0020] In the compressor according to some embodiments of the present invention, a plurality of the grooves are distributed along the circumferential direction on the outer circumferential surface of at least one of the first portion and the third portion.

[0021] According to some embodiments of the compressor of the present invention, the axial thickness dimension of the first part is H1, the axial thickness dimension of the second part is H2, and the axial thickness dimension of the third part is H3, wherein H1=H3; or H1≠H3; or 2.5H1≤H2≤3.5H1; or 2.5H3≤H2≤3.5H3; or 10mm≤H1≤15mm; or 10mm≤H3≤15mm.

[0022] According to the compressor of some embodiments of the present invention, the driving unit includes a stator assembly, the peripheral wall of the accommodating cavity is provided with multiple layers of the muffler structure distributed along the axial direction, the size of the distribution range of the multiple layers of the muffler structure along the axial direction is set to H4, the thickness of the stator assembly is set to t, and satisfies: H4≥t;

[0023] Alternatively, the noise reduction structure includes a plurality of noise reduction structures which are evenly spaced and spread along the peripheral wall and cover the entire peripheral wall.

[0024] In the compressor according to some embodiments of the present invention, the inclination angle of the inner wall of the pit gradually decreases from the opening to the bottom.

[0025] In a compressor according to some embodiments of the present invention, the silencer structure includes a bottom surface, an arcuate surface and an end surface, the arcuate surface is connected to the bottom surface and is recessed relative to the bottom surface, the bottom surface is connected to the bottom of the end surface, and the arcuate surface and the end surface are configured to form the pit.

[0026] According to some embodiments of the compressor of the present invention, the cross section of the arc surface satisfies: H = A x m , where m≥2, x represents the distance from any point on the arc surface to the origin of the acoustic black hole center.

[0027] According to some embodiments of the compressor of the present invention, the arcuate surface is a surface of revolution;

[0028] Alternatively, the arcuate surface includes a first side surface and a second side surface, at least one end of the first side surface is an arcuate surface, and at least one end of the second side surface is a straight edge.

[0029] The invention also provides a thermal management system.

[0030] A thermal management system according to an embodiment of the present invention comprises any one of the compressors described above.

[0031] The present invention also provides a vehicle.

[0032] The vehicle according to the embodiment of the present invention is provided with any one of the compressors described above; or is provided with the thermal management system described above.

[0033] The thermal management system, the vehicle and the above-mentioned compressor have the same advantages as those of the prior art, which will not be described in detail here.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a cross-sectional view of a housing according to an embodiment of the present invention;

[0036] Figure 2 yes Figure 1 An enlarged schematic diagram of A in FIG.

[0037] Figure 3 is a schematic structural diagram of a housing and a drive unit according to an embodiment of the present invention;

[0038] Figure 4 yes Figure 3 A cross-sectional view at BB;

[0039] Figure 5 yes Figure 3 Cross-sectional view at CC of ;

[0040] Figure 6 is a structural schematic diagram of a stator assembly according to an embodiment of the present invention;

[0041] Figure 7 is a cross-sectional view of a stator assembly and a stator winding according to an embodiment of the present invention;

[0042] Figure 8 is a schematic structural diagram of an end cover according to an embodiment of the present invention;

[0043] Fig. 9 is a cross-sectional view of an end cap according to an embodiment of the present invention;

[0044] Fig.10 yes Fig. 9 An enlarged schematic diagram of point D in FIG.

[0045] Reference numerals:

[0046] Shell 1, muffler structure 11, end surface 111, arc surface 112, bottom surface 113, accommodating cavity 12, end cover 2, inner end surface 21, first inner end surface 211, second inner end surface 212, step surface 213,

[0047] Driving unit 3 , stator core 31 , first portion 311 , second portion 312 , third portion 313 , stator winding 32 , slot 33 , first notch 331 , second notch 332 , third notch 333 . DETAILED DESCRIPTION

[0048] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0049] Reference below Figure 1-Figure 10 The compressor according to the embodiment of the present invention can reduce the installation cost while ensuring the silencing effect, and can ensure the compressor assembly efficiency and improve the user comfort.

[0050] like Figure 1-Figure 10 As shown, a compressor according to an embodiment of the present invention includes a shell 1, a compression unit and a drive unit 3 arranged on the shell 1, the drive unit 3 is transmission-connected with the compression unit, the shell 1 is provided with a silencer structure 11, and the silencer structure 11 includes a pit formed by a depression from the inner surface of the shell 1.

[0051] The compressor in this embodiment can be configured as follows: the scroll compressor is a volumetric compression compressor, the compression component is composed of a movable scroll and a stationary scroll, and has a variety of structural features for reducing the oil entrained during gas flow through a gas channel provided in the compressor housing 1. The scroll compressor has the characteristics of simple structure, small size, high efficiency and high reliability, and has a wider range of applications.

[0052] Specifically, the compressor is provided with an outer shell 1, which is arranged at the outermost side of the compressor. A cavity is formed in the outer shell 1, and the cavity can be used to install components required for the operation of the compressor. The outer shell 1 can support the overall structure of the compressor and provide a space isolated from the outside world for the internal components of the compressor, so that the outer shell 1 can protect the internal components of the compressor from being affected by the outside world, so as to ensure the reliability of the operation of the internal components of the compressor and avoid potential pollution hazards to the environment caused by the internal components of the compressor.

[0053] Furthermore, the compressor is provided with a compression unit and a driving unit 3, the driving unit 3 and the compression unit are connected, and the driving unit 3 can provide driving force to the compression unit, thereby driving the compression unit to compress the gas, so that the compressor can realize the compression of the gas, the driving unit 3 and the compression unit are both arranged inside the shell 1, and the shell 1 is provided with a sound-absorbing structure 11, and the sound-absorbing structure 11 is also arranged inside the shell 1. When the driving unit 3 is running, noise will be generated, and when the compression unit compresses the gas and the gas is transported inside the compressor, noise will be generated inside the shell 1. The sound-absorbing structure 11 is arranged in the shell 1 to reduce the above noise, thereby improving user comfort.

[0054] And the silencer structure 11 is arranged on the inner surface of the outer shell 1. The silencer structure 11 can be arranged as a pit recessed relative to the inner surface of the outer shell 1, that is, the silencer structure 11 is directly formed on the inner surface of the outer shell 1. When the compressor is manufactured, the outer shell 1 can be directly formed with the silencer structure 11 on its inner surface during production, thereby avoiding the need to separately set the silencer structure 11 and reducing the setting cost. When assembling the compressor, the silencer structure 11 does not need to be separately assembled, which can shorten the assembly time and improve the assembly efficiency of the compressor.

[0055] According to the compressor of the embodiment of the present invention, a silencer structure 11 is provided on the compressor casing 1 to silence the gas and ensure user comfort, and the silencer structure 11 includes a pit formed by a depression from the inner surface of the casing 1, that is, the silencer structure 11 is directly formed on the casing 1, which can reduce the setting cost, shorten the compressor assembly time, and improve the compressor assembly efficiency. In addition, the compressor adopts a multi-tooth vortex structure, and utilizes the characteristics of multiple teeth. Compared with traditional positive displacement compressors, the compressor has fewer moving parts, simpler assembly, less vibration and noise, smaller overall structural size, smoother energy conversion process, better use effect, and wider range of application.

[0056] In some embodiments, the silencer structure 11 conforms to the acoustic black hole model, and the silencer structure 11 can be set as a pit that is recessed relative to the inner surface of the outer shell 1, so that the phase velocity and group velocity of the sound wave during propagation can be changed accordingly through the change of structural impedance, so that the sound wave can be gathered in a local area of ​​the silencer structure 11, and the energy of the noise will no longer be reflected, so as to reduce the noise and improve the noise reduction effect.

[0057] In some embodiments, the compression unit is disposed in a housing 1 , and an exhaust cavity is provided in the housing 1 . The exhaust cavity is connected to an exhaust port of the compression unit, and a sound-absorbing structure 11 is provided on an inner surface of the exhaust cavity.

[0058] Specifically, the compressor is provided with a compression unit, and the compression unit is provided with a movable scroll and a fixed scroll. The movable scroll and the fixed scroll are meshed with each other and a plurality of compression chambers can be formed inside. Gas can be respectively passed into the plurality of compression chambers, and the compression unit is connected to a driving unit 3. The driving unit 3 can drive the movable scroll and the fixed scroll to move relative to each other, so that the volumes of the plurality of compression chambers are changed, and the gas in the compression chamber can be compressed, and the gas can be discharged from the compressor after compression. The compression unit and the driving unit 3 are both arranged inside the outer shell 1 of the compressor, and an exhaust chamber is formed inside the outer shell 1. The compression unit is provided with an exhaust port, and the exhaust port is arranged between the compression chamber and the exhaust chamber, so that the compression chamber and the exhaust chamber are connected, so that the compressed gas in the compression chamber can be discharged into the exhaust chamber through the exhaust port, so as to be discharged from the compressor through the exhaust chamber, and a silencer structure 11 is provided on the inner surface of the exhaust chamber, and the silencer structure 11 is directly formed on the inner surface of the exhaust chamber, so that the compressed gas delivered to the exhaust chamber can be silenced by the silencer structure 11 and then discharged from the compressor, thereby reducing the exhaust noise of the compressor and improving user comfort.

[0059] In some embodiments, the housing 1 includes an end cover 2, which is disposed on the exhaust side of the compression unit. The exhaust cavity is located inside the end cover 2. The inner end surface 21 of the end cover 2 is opposite to the compression unit and is provided with a silencer structure 11.

[0060] Specifically, the compressor is provided with a shell 1, which is arranged at the outermost side of the compressor, and the shell 1 is provided with an end cover 2, which is arranged at the end of the shell 1 and can close one end of the shell 1, and the end cover 2 is located on the exhaust side of the compression unit, and the compression unit is arranged inside the shell 1, that is, the exhaust chamber is arranged between the exhaust side of the compression unit and the end cover 2, so that after the gas compressed by the compression unit is discharged into the exhaust chamber, it needs to be discharged to the outside of the compressor through the end cover 2, and the inner end surface 21 of the end cover 2 is provided with a silencer structure 11, and the inner end surface 21 of the end cover 2 is opposite to the compression unit, that is, when the compressed gas is discharged into the exhaust chamber through the exhaust port of the compression unit, it can pass through the inner end surface 21 of the end cover 2, and the inner end surface 21 of the end cover 2 is provided with a silencer structure 11, so that the end cover 2 can silence the compressed gas delivered to the exhaust chamber through the silencer structure 11 before discharging it outside the compressor, thereby reducing the exhaust noise of the compressor and improving user comfort.

[0061] In some embodiments, the inner end surface 21 includes a first inner end surface 211 and a second inner end surface 212, the first inner end surface 211 is opposite to the exhaust port of the compression unit, the second inner end surface 212 surrounds the first inner end surface 211, and at least one of the first inner end surface 211 and the second inner end surface 212 is provided with a silencer structure 11.

[0062] Specifically, the housing 1 is provided with an end cover 2, and the inner end surface 21 of the end cover 2 is arranged opposite to the compression unit, and the inner end surface 21 is provided with a silencer structure 11, so that the compressed gas can be silenced to reduce the exhaust noise of the compressor, and Figure 8-Figure 9 As shown, the inner end surface 21 is provided with a first inner end surface 211 and a second inner end surface 212. The first inner end surface 211 is arranged at the end inside the end cover 2 and is arranged opposite to the exhaust port of the compression unit. The second inner end surface 212 is arranged on the side wall inside the end cover 2 and is arranged around the first inner end surface 211.

[0063] Furthermore, at least one of the first inner end surface 211 and the second inner end surface 212 is provided with a silencer structure 11, that is, the silencer structure 11 can be provided only on the first inner end surface 211, or the silencer structure 11 can be provided only on the second inner end surface 212, or the silencer structure 11 can be provided on both the first inner end surface 211 and the second inner end surface 212. In the present embodiment, the first inner end surface 211 and the second inner end surface 212 are both provided with a silencer structure 11, so that the compressed gas discharged from the exhaust port of the compression unit can be silenced by the silencer structure 11 of the first inner end surface 211, and can also be silenced by the silencer structure 11 of the second inner end surface 212, thereby omnidirectionally silencing the compressed gas, thereby ensuring the reliability of the inner end surface 21 of the end cover 2 in silencing the compressed gas and improving the performance of the silencer structure 11.

[0064] In some embodiments, the second inner end surface 212 is closer to the compression unit than the first inner end surface 211 , and a step surface 213 is connected between the second inner end surface 212 and the first inner end surface 211 .

[0065] Specifically, Figure 8-Figure 9 As shown, the inner end surface 21 of the end cover 2 is provided with a first inner end surface 211 and a second inner end surface 212, and the second inner end surface 212 is arranged around the first inner end surface 211, and an exhaust cavity is formed in the end cover 2. The compressed gas can be discharged into the exhaust cavity after being compressed by the compression unit, that is, the compressed gas entering the exhaust cavity can contact the first inner end surface 211 and the second inner end surface 212 of the end cover 2, and the second inner end surface 212 is closer to the compression unit than the first inner end surface 211, that is, the first inner end surface 211 is arranged at the second inner end surface 212 away from the compression unit. On one side of the unit, the second inner end face 212 is an annular surface, which is arranged around the first inner end face 211, and the cross-sectional area of ​​the annular structure formed by the second inner end face 212 is larger than the area of ​​the first inner end face 211, and a step surface 213 is formed between the second inner end face 212 and the first inner end face 211. After the compressed gas is discharged into the exhaust chamber, it can be transported along the second inner end face 212, and then transported to the first inner end face 211 after passing through the step surface 213, thereby changing the flow direction of the compressed gas and reducing the noise of the compressed gas.

[0066] When the sound waves of the noise generated by the compressed gas encounter the silencer structure 11 in the end cover 2 during transmission in the exhaust chamber, the speed of the transmitted waves will gradually decrease, thereby generating an energy gathering effect when transmitted to the first inner end surface 211, so that the sound wave energy is no longer reflected, thereby reducing the overall amount of noise radiated outside the compressor, thereby improving the silencer effect.

[0067] In some embodiments, the number of the sound absorbing structures 11 is at least three, that is, the sound absorbing structures 11 can be set to three, four or more. In this embodiment, Figure 1 As shown, a plurality of silencer structures 11 are provided, and the silencer structures 11 are provided inside the outer shell 1. Noise is generated when the driving unit 3 is running, and noise is generated inside the outer shell 1 when the compression unit compresses the gas and the gas is transported inside the compressor. The silencer structure 11 is provided inside the outer shell 1 to reduce the above noise, thereby improving user comfort, and a plurality of silencer structures 11 are provided, so that the compressed gas can be silenced multiple times by the silencer structure 11, thereby improving the silencer effect and ensuring the reliability of the silencer structure 11.

[0068] In some embodiments, the housing 1 has a receiving cavity 12 , the driving unit 3 is disposed in the receiving cavity 12 , and a sound-absorbing structure 11 is disposed on a peripheral wall of the receiving cavity 12 .

[0069] Specifically, the compressor is provided with a driving unit 3 and a compression unit, both of which are arranged in a housing 1 of the compressor, and a receiving chamber 12 is formed inside the housing 1 of the compressor, and both of the driving unit 3 and the compression unit can be arranged in the receiving chamber 12, and as shown in FIG. Figure 4-Figure 5 As shown, the inner wall of the accommodating chamber 12 is provided with a silencer structure 11, and the silencer structure 11 can be set to multiple. The driving unit 3 will generate noise during operation. The silencer structure 11 is set on the peripheral wall of the accommodating chamber 12 to reduce the accumulation of sound wave energy generated by the operation of the driving unit 3, thereby reducing the noise generated by the operation of the driving unit 3 from radiating to the outside of the compressor through the outer shell 1. The silencer structure 11 is set to multiple, thereby the noise generated by the operation of the driving unit 3 can be silenced multiple times, which can improve the silencer effect and ensure the reliability of the silencer structure 11.

[0070] In some embodiments, the drive unit 3 includes a stator assembly, which includes a first part 311, a second part 312 and a third part 313 distributed along the axial direction, the second part 312 is arranged between the first part 311 and the third part 313, and the first part 311 and the third part 313 protrude radially from the outer peripheral surface of the second part 312.

[0071] Specifically, Figure 4-Figure 5 As shown, a drive unit 3 is arranged in the housing 1 of the compressor, and the drive unit 3 can drive the compression unit to compress the gas. Figure 6-Figure 7 As shown, the drive unit 3 includes a stator assembly, which is provided with a stator core 31 and a stator winding 32, and the stator core 31 is provided with three parts, which are distributed in sequence along the axial direction and include a first part 311, a second part 312 and a third part 313, the first part 311 and the third part 313 are respectively arranged at two ends of the second part 312 along the axial direction, the first part 311, the second part 312 and the third part 313 are stacked with rivets along the axial direction, and the first part 311 and the third part 313 protrude radially from the outer peripheral surface of the second part 312, that is, the diameters of the first part 311 and the third part 313 are both set to the diameter of the second part 312, so that when the drive structure is installed in the accommodating cavity 12, the distance between the outer peripheral walls of the first part 311 and the third part 313 and the inner peripheral wall of the accommodating cavity 12 is smaller than the distance between the outer peripheral wall of the second part 312 and the inner peripheral wall of the accommodating cavity 12.

[0072] The first part 311 and the third part 313 are arranged to protrude radially from the outer peripheral surface of the second part 312, and the low-temperature and low-pressure gaseous refrigerant sucked in can be used to cool down and dissipate heat for the stator assembly, thereby preventing the drive structure from failing due to high-temperature demagnetization at high speeds. The contact area between the stator core 31 and the inner surface of the accommodating cavity 12 can also be reduced, thereby reducing the transmission of vibrations generated during the operation of the drive structure through the casing to the outside, thereby improving user comfort.

[0073] In some embodiments, the first portion 311 has an interference fit with the peripheral wall; or, the third portion 313 has an interference fit with the peripheral wall; or, the second portion 312 is spaced apart from the peripheral wall; or, the sound-absorbing structure 11 provided on the peripheral wall is radially opposite to the second portion 312 .

[0074] Specifically, Figure 4-Figure 5 As shown, a drive unit 3 is arranged in the shell 1 of the compressor, and the stator assembly includes a first part 311, a second part 312 and a third part 313 distributed along the axial direction, the second part 312 is arranged between the first part 311 and the third part 313, and the first part 311 can be set to be interference fit with the inner circumferential wall of the shell 1, so that the drive unit 3 can be installed inside the shell 1 to ensure installation reliability, and the third part 313 can also be set to be interference fit with the inner circumferential wall of the shell 1, so that the drive unit 3 can be installed inside the shell 1 to ensure installation reliability.

[0075] Furthermore, the second part 312 is arranged between the first part 311 and the third part 313, and the second part 312 is separated from the peripheral wall, that is, there is a gap between the second part 312 and the peripheral wall, the first part 311 and the third part 313 are arranged to radially protrude from the outer peripheral surface of the second part 312, and the silencer structure 11 arranged on the peripheral wall can be arranged to be radially opposite to the second part 312, thereby ensuring the installation reliability of the drive unit 3 and the inner part of the outer shell 1 while preventing the drive structure from failing due to high-temperature demagnetization at high speed, and reducing the transmission of vibration generated during the operation of the drive structure through the casing to the outside, thereby improving user comfort.

[0076] In some embodiments, at least one of the first part 311 and the third part 313 has a gap with the surrounding wall, that is, only a gap is set between the first part 311 and the surrounding wall, or only a gap is set between the third part 313 and the surrounding wall, or gaps are set between the first part 311 and the third part 313 and the surrounding wall. In this embodiment, gaps are set between the first part 311 and the third part 313 and the surrounding wall, and the low-temperature and low-pressure gaseous refrigerant can cool down and dissipate heat from the stator assembly through the above-mentioned gaps, thereby preventing the drive structure from failing due to high-temperature demagnetization at high speed, and reducing the contact area between the stator core 31 and the inner surface of the accommodating cavity 12, thereby reducing the transmission of vibration generated during the operation of the drive structure through the casing to the outside, thereby improving user comfort.

[0077] In some embodiments, a groove 33 is disposed on the outer peripheral surface of at least one of the first portion 311 and the third portion 313 , and a gap is formed between the groove 33 and the peripheral wall.

[0078] Specifically, Figure 6-Figure 7As shown, at least one of the first part 311 and the third part 313 has a groove 33 on its outer circumference, that is, only the groove 33 is provided on the outer circumference of the first part 311, or only the groove 33 is provided on the outer circumference of the third part 313, or both the first part 311 and the third part 313 have grooves 33 on their outer circumferences. In this embodiment, the first part 311 and the third part 313 have grooves 33 on their outer circumferences, and a gap is formed between the groove 33 and the surrounding wall, that is, the first part 311 and the third part 313 can form a gap with the surrounding wall through the groove 33, and the low-temperature and low-pressure gaseous refrigerant can cool and dissipate heat from the stator assembly through the above-mentioned gap, thereby preventing the drive structure from failing due to high-temperature demagnetization at high speed, and reducing the contact area between the stator core 31 and the inner surface of the accommodating cavity 12, thereby reducing the transmission of vibration generated during the operation of the drive structure through the casing to the outside, thereby improving user comfort.

[0079] In some embodiments, the groove portion 33 includes a first notch 331, a second notch 332 and a third notch 333 distributed along the circumference of the stator assembly, wherein the width dimension of the first notch 331 is smaller than the width dimension of the second notch 332; or, the width dimension of the third notch 333 is smaller than the width dimension of the second notch 332; or, the width dimension of the first notch 331 is the same as the width dimension of the third notch 333; or, the width dimension of the first notch 331 is different from the width dimension of the third notch 333; or, at least one of the first notch 331, the second notch 332 and the third notch 333 is in an arc shape.

[0080] Specifically, Figure 3-Figure 7 As shown, the outer peripheral surfaces of the first part 311 and the third part 313 are provided with grooves 33, and gaps are formed between the grooves 33 and the peripheral wall, thereby preventing the drive structure from failing due to high-temperature demagnetization at high speeds, and reducing the transmission of vibrations generated during the operation of the drive structure through the casing to the outside, thereby improving user comfort, and the grooves 33 are configured to include a first notch 331, a second notch 332 and a third notch 333 distributed along the circumferential direction of the stator assembly, and the first notch 331, the second notch 332 and the third notch 333 all form gaps with the peripheral wall, thereby allowing multiple gaps to exist between the first part 311 and the third part 313 and the peripheral wall.

[0081] The width of the first notch 331 can be set to be smaller than the width of the second notch 332, and the width of the third notch 333 can also be set to be smaller than the width of the second notch 332, that is, the width of the second notch 332 can be set to be the largest, and the width of the first notch 331 can be set to be the same as the width of the third notch 333, or it can be set to be different from the width of the third notch 333, and at least one of the first notch 331, the second notch 332 and the third notch 333 is an arc shape, that is, only the first notch 331 is set to be an arc shape, only the second notch 332 is set to be an arc shape, or only the third notch 333 is set to be an arc shape. The notch 333 is set to an arc shape, and the first notch 331, the second notch 332 and the third notch 333 can also be set to an arc shape. In the present embodiment, the first notch 331, the second notch 332 and the third notch 333 are all set to an arc shape, so that the low-temperature and low-pressure gaseous refrigerant can cool down and dissipate the heat of the stator assembly through the first notch 331, the second notch 332 and the third notch 333, thereby preventing the drive structure from failing due to high-temperature demagnetization at high speed, and reducing the contact area between the stator core 31 and the inner surface of the accommodating cavity 12, thereby reducing the vibration generated during the operation of the drive structure and transmitting it to the outside through the casing, thereby improving user comfort.

[0082] In some embodiments, a plurality of grooves 33 are distributed along the circumferential direction on the outer circumferential surface of at least one of the first portion 311 and the third portion 313 .

[0083] Specifically, Figure 6-Figure 7 As shown, at least one of the first portion 311 and the third portion 313 has a groove portion 33 on its outer circumference, that is, only the first portion 311 has a groove portion 33 on its outer circumference, only the third portion 313 has a groove portion 33 on its outer circumference, or both the first portion 311 and the third portion 313 have groove portions 33 on their outer circumferences. In this embodiment, both the first portion 311 and the third portion 313 have groove portions 33 on their outer circumferences, and the groove portion 33 may be provided in plurality, and the plurality of groove portions 33 are distributed in the circumferential direction. In this embodiment, the groove portion 33 is provided in six portions, and the six groove portions 33 are arranged in the first The outer peripheral surfaces of the first part 311 and the third part 313 are evenly spaced along the circumferential direction, and gaps are formed between the grooves 33 and the peripheral wall, that is, the first part 311 and the third part 313 can form multiple gaps with the peripheral wall through multiple grooves 33, and the low-temperature and low-pressure gaseous refrigerant can cool down and dissipate heat to the stator assembly through the above-mentioned multiple gaps, thereby preventing the drive structure from failing due to high-temperature demagnetization under high speed, and reducing the contact area between the stator core 31 and the inner surface of the accommodating cavity 12, thereby reducing the vibration generated during the operation of the drive structure and transmitting it to the outside through the casing, thereby improving user comfort.

[0084] In some embodiments, the axial thickness dimension of the first portion 311 is H1, the axial thickness dimension of the second portion 312 is H2, and the axial thickness dimension of the third portion 313 is H3, wherein H1=H3; or H1≠H3; or 2.5H1≤H2≤3.5H1; or 2.5H3≤H2≤3.5H3; or 10mm≤H1≤15mm; or 10mm≤H3≤15mm.

[0085] Specifically, Figure 4-Figure 5 As shown, a drive unit 3 is arranged in the casing 1 of the compressor, and the stator assembly includes a first part 311, a second part 312 and a third part 313 distributed in the axial direction, the second part 312 is arranged between the first part 311 and the third part 313, and the thickness dimension of the first part 311 in the axial direction can be set to H1, the thickness dimension of the second part 312 in the axial direction can be set to H2, and the thickness dimension of the third part 313 in the axial direction can be set to H3, and it can satisfy: H1=H3, that is, the thickness dimension of the first part 311 in the axial direction is equal to the thickness dimension of the third part 313 in the axial direction, and it can also satisfy: H1≠H3, that is, the thickness dimension of the first part 311 in the axial direction is not equal to the thickness dimension of the third part 313 in the axial direction.

[0086] The thickness dimension H1 of the first portion 311 along the axial direction can be set to 10 mm ≤ H1 ≤ 15 mm, that is, the thickness dimension H1 of the first portion 311 along the axial direction can be set to 10 mm, 12 mm or 15 mm, etc., the thickness dimension H3 of the third portion 313 along the axial direction can be set to 10 mm ≤ H3 ≤ 15 mm, that is, the thickness dimension H3 of the third portion 313 along the axial direction can be set to 10 mm, 12 mm or 15 mm, etc., and the thickness dimension H2 of the second portion 312 along the axial direction is set to satisfy: 2.5H1 ≤ H2 ≤ 3.5H1, or satisfy: 2.5H3 ≤ H2 ≤ 3.5H3, that is, the second portion 31 The thickness dimension H2 along the axial direction is set to be greater than the thickness dimension of the first part 311 along the axial direction, or is set to be greater than the thickness dimension of the third part 313 along the axial direction, that is, the thickness dimension of the second part 312 along the axial direction is set to be the largest among the three parts, and there is a gap between the outer peripheral wall of the second part 312 and the housing 1. The thickness dimension of the second part 312 along the axial direction is set to be the largest, which can reduce the contact area between the stator core 31 and the inner surface of the accommodating cavity 12, thereby reducing the transmission of the vibration generated by the driving structure during operation through the housing to the outside, improving the user comfort, and improving the cooling and heat dissipation effect of the low-temperature and low-pressure gaseous refrigerant on the stator assembly, ensuring the operation reliability.

[0087] In some embodiments, the drive unit 3 includes a stator assembly, and the peripheral wall of the accommodating cavity 12 is provided with a multi-layer silencer structure 11 distributed along the axial direction, the size of the distribution range of the multi-layer silencer structure 11 along the axial direction is set to H4, the thickness of the stator assembly is set to t, and satisfies: H4≥t; or, the silencer structure 11 includes a plurality of structures that are evenly distributed along the peripheral wall and cover the peripheral wall.

[0088] Specifically, the drive unit 3 is provided with a stator assembly, which is arranged in the outer shell 1, and the peripheral wall of the accommodating cavity 12 is provided with a sound-absorbing structure 11. The sound-absorbing structure 11 is arranged in multiple layers, and the multiple layers of sound-absorbing structure 11 are distributed axially on the peripheral wall. The drive unit 3 will generate noise during operation. Arranging the multiple layers of sound-absorbing structure 11 distributed axially on the peripheral wall of the accommodating cavity 12 can reduce the accumulation of sound wave energy generated by the operation of the drive unit 3, thereby reducing the noise generated by the operation of the drive unit 3 from radiating to the outside of the compressor through the peripheral wall of the accommodating cavity 12. The sound-absorbing structure 11 is arranged in multiple layers, thereby absorbing the noise generated by the operation of the drive unit 3 for multiple times, which can improve the sound-absorbing effect while ensuring the structural strength of the outer shell 1, and ensure the reliability of the sound-absorbing structure 11.

[0089] The size of the distribution range of the multi-layer sound-absorbing structure 11 along the axial direction is set to H4, the thickness of the stator assembly is set to t, and it satisfies: H4≥t, that is, the size of the distribution range of the multi-layer sound-absorbing structure 11 along the axial direction can be set to be equal to the thickness of the stator assembly, or the size of the distribution range of the multi-layer sound-absorbing structure 11 along the axial direction can be set to be greater than the thickness of the stator assembly, thereby making the distribution range of the multi-layer sound-absorbing structure 11 along the axial direction larger, ensuring the reliability of silencing the drive unit 3, and the sound-absorbing structure 11 can be set to include a plurality of structures that are evenly distributed along the peripheral wall and cover the peripheral wall, that is, the sound-absorbing structure 11 can be set to a plurality of structures, and the plurality of sound-absorbing structures 11 are evenly distributed along the peripheral wall, thereby being able to perform all-round silencing of noise and improve the silencing effect.

[0090] In some embodiments, the inclination angle of the inner wall of the pit gradually decreases from the opening to the bottom. The outer shell 1 of the compressor is provided with a silencer structure 11, which is arranged on the inner surface of the outer shell 1. The silencer structure 11 can be set as a pit recessed relative to the inner surface of the outer shell 1, and the inclination angle of the inner wall of the pit gradually decreases from the opening to the bottom, that is, the size of the pit gradually decreases with depth, and then the phase velocity and group velocity of the sound wave during propagation can be changed accordingly through the change of structural impedance, so that the sound wave can be gathered in the local area of ​​the silencer structure 11, and then the energy of the noise will no longer be reflected, so as to reduce the noise and improve the noise reduction effect.

[0091] In some embodiments, the sound-absorbing structure 11 includes a bottom surface 113, a curved surface 112 and an end surface 111. The curved surface 112 is connected to the bottom surface 113 and is recessed relative to the bottom surface 113. The end surface 111 is connected to the bottom of the curved surface 112. The curved surface 112 and the end surface 111 are configured to form a pit.

[0092] Specifically, the circumferential wall inside the compressor housing 1 and the inner circumferential surface of the compressor end cover 2 are both provided with a plurality of silencer structures 11, and the propagated sound wave energy can be gathered in the silencer structure 11, thereby reducing the transmission of noise, and the silencer structure 11 is provided as a pit recessed relative to the inner surface of the housing 1, as shown in FIG. Figure 2 and Fig.10 As shown, the sound-absorbing structure 11 includes a bottom surface 113, a curved surface 112 and an end surface 111. The bottom surface 113 is arranged at the opening of the sound-absorbing structure 11. The bottom surface 113 is connected to the curved surface 112, and the curved surface 112 is recessed relative to the bottom surface 113, so that the sound-absorbing structure 11 is recessed relative to the inner surface of the shell 1, and the end surface 111 is connected to the bottom of the curved surface 112. The curved surface 112 and the end surface 111 are jointly configured to form a pit, so that when the noise propagates to the sound-absorbing structure 11, it can enter the pit through the bottom surface 113, and the sound waves can be gathered through the curved surface 112 and the end surface 111, so that the noise can be weakened to ensure the sound-absorbing effect, and the end surface 111 can be provided with a sound-absorbing material to further ensure the reliability of the sound-absorbing and improve the sound-absorbing effect.

[0093] In some embodiments, the cross section of the arc surface 112 satisfies: H = A x x m , where m≥2, x represents the distance from any point on the arc surface 112 to the center origin of the acoustic black hole, the inner peripheral wall of the compressor housing 1 and the inner peripheral surface of the compressor end cover 2 are both provided with a plurality of silencer structures 11 silencer structures 11, and the silencer structure 11 is provided with a connected bottom surface 113, an arc surface 112 and an end surface 111, wherein the cross section of the arc surface 112 is set to satisfy: H=A×x m , m is set to be greater than or equal to 2, that is, m can be set to 2, 3 or 4, etc., so that the characteristic of the gradient change of the sound velocity and refractive index of the bending wave in the silencer structure 11 can be utilized, and by changing the thickness of the end cover 2 or the shell 1, the cross-sectional curve function with different thickness changes is selected to gather the propagated sound wave energy in the silencer structure 11, thereby gathering the energy of the noise without reflection, etc., so as to reduce vibration and noise radiation.

[0094] In some embodiments, the arc surface 112 is a surface of revolution; or, the arc surface 112 includes a first side surface and a second side surface, at least one end of the first side surface is the arc surface 112, and at least one end of the second side surface is a straight edge.

[0095] Specifically, the sound-absorbing structure 11 is provided with a bottom surface 113, a curved surface 112 and an end surface 111, and the curved surface 112 can be set as a rotation surface, that is, the curved surface 112 can be formed by rotating a curve around an axis, so that the cross-sectional size of the sound-absorbing structure 11 from the bottom surface 113 to the end surface 111 gradually decreases, thereby allowing the sound-absorbing structure 11 to reduce noise, and the curved surface 112 can also be set to include a first side surface and a second side surface, at least one end of the first side surface is the curved surface 112, and at least one end of the second side surface is a straight edge, that is, the cross-section of the curved surface 112 is a runway-shaped cross-section. In actual production, the curved surface 112 structure can be set according to needs to improve the setting flexibility.

[0096] The invention also provides a thermal management system.

[0097] A thermal management system according to an embodiment of the present invention includes any one of the above compressors.

[0098] According to the thermal management system of the embodiment of the present invention, a compressor is provided, and a silencer structure 11 is provided on the outer shell 1 of the compressor to silence the gas to ensure user comfort, and the pit formed by the depression from the inner surface of the outer shell 1 is directly formed on the outer shell 1, thereby reducing the setting cost, shortening the compressor assembly time, and improving the compressor assembly efficiency. In addition, the compressor adopts a multi-tooth vortex structure, utilizing the characteristics of multiple teeth. Compared with traditional positive displacement compressors, the compressor has fewer moving parts, simpler assembly, less vibration and noise, smaller overall structural size, smoother energy conversion process, better use effect, and wider range of application.

[0099] The present invention also provides a vehicle.

[0100] The vehicle according to the embodiment of the present invention is provided with any one of the above-mentioned compressors; or is provided with the above-mentioned thermal management system.

[0101] According to the vehicle of the embodiment of the present invention, a silencer structure 11 is provided on the outer shell 1 of the compressor to silence the gas and ensure user comfort, and the silencer structure 11 includes a pit formed by a depression from the inner surface of the outer shell 1, that is, the silencer structure 11 is directly formed on the outer shell 1, which can reduce the setting cost, shorten the compressor assembly time, and improve the compressor assembly efficiency. In addition, the compressor adopts a multi-tooth vortex structure, which utilizes the characteristics of multiple teeth. Compared with traditional positive displacement compressors, the compressor has fewer moving parts, simpler assembly, less vibration and noise, smaller overall structural size, smoother energy conversion process, better use effect, and wider range of application.

[0102] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0103] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0104] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0105] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0107] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A compressor, characterized in that: The invention comprises a housing (1), a compression unit and a drive unit (3) arranged on the housing (1), wherein the drive unit (3) is in transmission connection with the compression unit, and the housing (1) is provided with a sound-absorbing structure (11), wherein the sound-absorbing structure (11) comprises a pit formed by being recessed from the inner surface of the housing (1).

2. The compressor according to claim 1, characterized in that The noise-absorbing structure (11) conforms to the acoustic black hole model.

3. The compressor according to claim 1, characterized in that The compression unit is arranged in the outer shell (1), and the outer shell (1) has an exhaust cavity, the exhaust cavity is connected to the exhaust port of the compression unit, and the inner surface of the exhaust cavity is provided with the silencer structure (11).

4. The compressor according to claim 3, characterized in that The housing (1) comprises an end cover (2), the end cover (2) being arranged on the exhaust side of the compression unit, the exhaust chamber being located inside the end cover (2), the inner end surface (21) of the end cover (2) being opposite to the compression unit and being provided with the silencer structure (11).

5. The compressor according to claim 4, characterized in that The inner end surface (21) comprises a first inner end surface (211) and a second inner end surface (212), wherein the first inner end surface (211) is opposite to the exhaust port of the compression unit, and the second inner end surface (212) surrounds the first inner end surface (211), and at least one of the first inner end surface (211) and the second inner end surface (212) is provided with the muffler structure (11).

6. The compressor according to claim 5, characterized in that The second inner end surface (212) is closer to the compression unit than the first inner end surface (211), and a step surface (213) is connected between the second inner end surface (212) and the first inner end surface (211).

7. The compressor according to any one of claims 3 to 6, characterized in that: The number of the noise reduction structures (11) is at least three.

8. The compressor according to any one of claims 1 to 6, characterized in that: The housing (1) has a containing cavity (12) in it, the drive unit (3) is arranged in the containing cavity (12), and the surrounding wall of the containing cavity (12) is provided with the sound-absorbing structure (11).

9. The compressor according to claim 8, characterized in that The drive unit (3) comprises a stator assembly, wherein the stator assembly comprises a first part (311), a second part (312) and a third part (313) distributed along the axial direction, wherein the second part (312) is arranged between the first part (311) and the third part (313), and the first part (311) and the third part (313) protrude radially from the outer circumference of the second part (312).

10. The compressor according to claim 9, characterized in that The first part (311) is interference fit with the peripheral wall; or, the third part (313) is interference fit with the peripheral wall; or, the second part (312) is spaced apart from the peripheral wall; or, the sound-absorbing structure (11) arranged on the peripheral wall is radially opposite to the second part (312).

11. The compressor according to claim 9, characterized in that At least one of the first portion (311) and the third portion (313) has a gap with the peripheral wall.

12. The compressor according to claim 11, characterized in that A groove (33) is provided on the outer peripheral surface of at least one of the first part (311) and the third part (313), and a gap is formed between the groove (33) and the peripheral wall.

13. The compressor according to claim 12, characterized in that The groove portion (33) comprises a first notch (331), a second notch (332) and a third notch (333) distributed along the circumference of the stator assembly, Wherein, the width dimension of the first notch (331) is smaller than the width dimension of the second notch (332); or, the width dimension of the third notch (333) is smaller than the width dimension of the second notch (332); or, the width dimension of the first notch (331) is the same as the width dimension of the third notch (333); or, the width dimension of the first notch (331) is different from the width dimension of the third notch (333); or, at least one of the first notch (331), the second notch (332) and the third notch (333) is in an arc shape.

14. The compressor according to claim 12, characterized in that The outer peripheral surface of at least one of the first part (311) and the third part (313) is provided with a plurality of grooves (33) distributed along the circumferential direction.

15. The compressor according to claim 9, characterized in that The thickness dimension of the first part (311) along the axial direction is H1, the thickness dimension of the second part (312) along the axial direction is H2, and the thickness dimension of the third part (313) along the axial direction is H3, wherein H1=H3; or H1≠H3; or 2.5H1≤H2≤3.5H1; or 2.5H3≤H2≤3.5H3; or 10mm≤H1≤15mm; or 10mm≤H3≤15mm.

16. The compressor according to claim 8, characterized in that The drive unit (3) comprises a stator assembly, the peripheral wall of the accommodating cavity (12) is provided with multiple layers of the muffler structure (11) distributed along the axial direction, the size of the distribution range of the multiple layers of the muffler structure (11) along the axial direction is set to H4, the thickness of the stator assembly is set to t, and the following condition is satisfied: H4≥t; Alternatively, the noise reduction structure (11) comprises a plurality of noise reduction structures which are evenly spaced along the peripheral wall and cover the entire peripheral wall.

17. The compressor according to claim 1, characterized in that The inclination angle of the inner wall of the pit gradually decreases from the opening to the bottom.

18. The compressor according to claim 1, characterized in that The noise reduction structure (11) comprises a bottom surface (113), a curved surface (112) and an end surface (111); the curved surface (112) is connected to the bottom surface (113) and is recessed relative to the bottom surface (113); the end surface (111) is connected to the bottom of the curved surface (112); and the curved surface (112) and the end surface (111) form the recess.

19. The compressor according to claim 18, characterized in that The cross section of the arcuate surface (112) satisfies: H = A x m , where m≥2, and x represents the distance from any point on the arc surface (112) to the center origin of the acoustic black hole.

20. The compressor according to claim 18, characterized in that The arcuate surface (112) is a surface of revolution; Alternatively, the arcuate surface (112) comprises a first side surface and a second side surface, at least one end of the first side surface is the arcuate surface (112), and at least one end of the second side surface is a straight edge.

21. A thermal management system, characterized in that: Comprising the compressor according to any one of claims 1-20.

22. A vehicle, characterized in that: A compressor as claimed in any one of claims 1 to 20 is provided; or a thermal management system as claimed in claim 21 is provided.

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