Electric compressors, air conditioning systems and vehicles

Abstract

This invention discloses an electric compressor, an air conditioning system, and a vehicle. The electric compressor includes: a housing structure having a high-pressure chamber and a refrigerant outlet; an exhaust path formed by a refrigerant flow space from the high-pressure chamber to the refrigerant outlet within the internal space of the housing structure; a compression structure discharging compressed refrigerant into the high-pressure chamber; and the housing structure discharging refrigerant outward through the refrigerant outlet; a motor driving the compression structure to compress the refrigerant; a resonant cavity formed inside the housing wall of the housing structure, the resonant cavity being connected to two different positions on the exhaust path; and a sliding structure slidably disposed within the resonant cavity and located between the two connected positions of the resonant cavity and the exhaust path, the sliding structure dividing the resonant cavity into sub-resonant cavities located on both sides of the sliding structure and allowing adjustment of the volume of each sub-resonant cavity to improve the stability of the exhaust pressure of the electric compressor within one exhaust cycle.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to an electric compressor, an air conditioning system, and a vehicle. Background Technology

[0002] Currently, electric compressors are the core components of refrigeration equipment. When electric compressors are working, they will generate vibration and noise, resulting in loud operating noise of the refrigeration equipment and affecting the user experience.

[0003] In related technologies, the high-pressure refrigerant discharged from the compression section of the electric compressor enters the high-pressure chamber and is directly discharged from the electric compressor through the discharge port. This results in large exhaust airflow noise and pressure pulsation during the operation of the electric compressor, which can easily trigger resonance in various components of the refrigeration equipment, leading to noise and vibration problems. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an electric compressor with low exhaust noise.

[0005] One objective of this invention is to provide an air conditioning system.

[0006] Another object of the present invention is to provide a vehicle.

[0007] An electric compressor according to a first aspect of the present invention includes: a housing structure having a high-pressure chamber and a refrigerant outlet formed thereon, the internal space of the housing structure including an exhaust path formed by a refrigerant flow space from the high-pressure chamber to the refrigerant outlet; a compression structure adapted to discharge compressed refrigerant into the high-pressure chamber, and the housing structure adapted to discharge refrigerant to the outside of the housing structure through the refrigerant outlet; a motor for driving the compression structure to compress the refrigerant; a resonant cavity formed inside the shell wall of the housing structure, the resonant cavity communicating with two different positions on the exhaust path; and a sliding structure slidably disposed within the resonant cavity and located between the two communicating positions of the resonant cavity and the exhaust path, the sliding structure being adapted to divide the resonant cavity into sub-resonant cavities located on both sides of the sliding structure, the sliding structure being adjustable in volume of each sub-resonant cavity.

[0008] According to an embodiment of the present invention, the electric compressor improves the airflow noise and pressure pulsation on the exhaust side of the housing structure through the resonant cavity, and adjusts the volume of the two sub-resonant cavities by sliding the sliding structure in the resonant cavity, thereby adjusting the pressure amplitude of the sub-resonant cavities. Thus, the volume of the sub-resonant cavities can be adjusted according to the pressure fluctuation at the gas channel, thereby making the exhaust pressure of the electric compressor more stable in one exhaust cycle.

[0009] According to some embodiments of the present invention, the exhaust path further includes a gas channel formed in and penetrating the shell wall of the housing structure, and the refrigerant outlet is connected to the high-pressure chamber through the gas channel.

[0010] According to some embodiments of the present invention, the two sub-resonant cavities located on both sides of the sliding structure are respectively connected to the high-pressure cavity and the gas channel.

[0011] According to some embodiments of the present invention, the electric compressor further includes an elastic element connected between the wall of the resonant cavity and the sliding structure.

[0012] According to some embodiments of the present invention, the inner wall surface of the resonant cavity is provided with a connecting groove, which can connect the sub-resonant cavities located on both sides of the sliding structure.

[0013] According to some embodiments of the present invention, there are two elastic elements, which are respectively disposed on both sides of the sliding structure and respectively supported between the wall of the resonant cavity and the sliding structure.

[0014] According to some embodiments of the present invention, the housing structure includes: a high-pressure housing having the high-pressure cavity and the gas passage formed therein; a partition connected to the high-pressure housing, and the resonant cavity being formed within the high-pressure housing and / or the partition.

[0015] According to some embodiments of the present invention, the end of the high-pressure housing is open, and the partition is disposed at the open end of the high-pressure housing.

[0016] According to some embodiments of the present invention, the separator is disposed on the inner side of the high-pressure housing.

[0017] According to some embodiments of the present invention, the resonant cavity is formed in both the high-pressure housing and the partition, and the resonant cavity of the high-pressure housing is in communication with the resonant cavity of the partition.

[0018] According to some embodiments of the present invention, the end of the wall of the high-pressure housing is formed with a groove that opens toward the separator, and the separator closes the opening of the groove to define the resonant cavity with the high-pressure housing.

[0019] According to some embodiments of the present invention, the housing structure is provided with a first communication channel connecting the resonant cavity and the high-pressure cavity.

[0020] According to some embodiments of the present invention, the first communication channel is formed on the high-pressure housing and / or the separator.

[0021] According to some embodiments of the present invention, the groove has an inner wall and an outer wall, one end of the outer wall facing the separator is fitted with the separator, the length of the inner wall is less than the length of the outer wall, and the one end of the inner wall facing the separator is spaced apart from the separator to form the first communicating channel.

[0022] According to some embodiments of the present invention, the surface of the separator facing the groove forms a first communicating channel, the first communicating channel spanning the inner wall of the groove, and the radially outer end of the first communicating channel communicating with the groove and the radially inner end communicating with the high-pressure chamber.

[0023] According to some embodiments of the present invention, the housing structure is provided with a second communication channel that connects the resonant cavity to the gas channel.

[0024] According to some embodiments of the present invention, the second communicating channel is connected between the groove and the gas channel, the groove and the second communicating channel extend axially along the housing structure, and the axial length of the groove is greater than the axial length of the second communicating channel.

[0025] According to some embodiments of the present invention, the cross-sectional area of ​​the second connecting channel is smaller than the cross-sectional area of ​​the gas channel.

[0026] According to some embodiments of the present invention, the axial length of the groove is at least half of the axial length of the high-pressure housing.

[0027] According to some embodiments of the present invention, the resonant cavity is formed in both the high-pressure housing and the partition, and the resonant cavity of the high-pressure housing is in communication with the resonant cavity of the partition.

[0028] According to some embodiments of the present invention, the housing structure includes a partition plate, the motor body and the compression structure are respectively placed on both sides of the partition plate, the drive shaft of the motor passes through the partition plate to connect with the compression structure, a low-pressure chamber for accommodating the motor body is also formed inside the housing structure, and a refrigerant suction port communicating with the low-pressure chamber is formed on the housing structure, and the compression structure draws refrigerant from the low-pressure chamber.

[0029] According to some embodiments of the present invention, the housing structure further includes a high-pressure housing and a low-pressure housing, the partition plate is sandwiched between the high-pressure housing and the low-pressure housing, the low-pressure cavity is formed between the partition plate and the low-pressure housing, and the high-pressure cavity is formed between the partition plate and the high-pressure housing.

[0030] According to some embodiments of the present invention, the housing structure further includes a high-pressure housing and a low-pressure housing, the partition plate is sandwiched between the low-pressure housing and the compression structure, and the high-pressure housing is located on the side of the compression structure opposite to the partition plate.

[0031] An air conditioning system according to a second aspect of the present invention includes the electric compressor described above.

[0032] The advantages of the air conditioner and the electric compressor mentioned above compared to the prior art are the same, and will not be repeated here.

[0033] According to a third aspect of the present invention, the vehicle includes the air conditioning system described above.

[0034] The advantages of the vehicle and the aforementioned air conditioning system over the prior art are the same, and will not be repeated here.

[0035] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0037] Figure 1 This is a partial cross-sectional view of the electric compressor according to an embodiment of the present invention. Figure 1 ;

[0038] Figure 2 This is a partial cross-sectional view of the electric compressor according to an embodiment of the present invention. Figure 2 ;

[0039] Figure 3 This is a partial cross-sectional view of the electric compressor according to an embodiment of the present invention. Figure 3 ;

[0040] Figure 4 This is a partial cross-sectional view of the electric compressor according to an embodiment of the present invention. Figure 4 ;

[0041] Figure 5 This is a cross-sectional view of the resonant cavity according to an embodiment of the present invention. Figure 1 ;

[0042] Figure 6 This is a cross-sectional view of the resonant cavity according to an embodiment of the present invention. Figure 2 ;

[0043] Figure 7 This is a cross-sectional view of the resonant cavity according to an embodiment of the present invention. Figure 3 ;

[0044] Figure 8 This is a cross-sectional view of the resonant cavity according to an embodiment of the present invention. Figure 4 ;

[0045] Figure 9 This is a cross-sectional view of the resonant cavity according to an embodiment of the present invention. Figure 5 ;

[0046] Figure 10 This is a cross-sectional view of the resonant cavity according to an embodiment of the present invention. Figure 6 ;

[0047] Figure 11 This is a pressure fluctuation curve diagram of the two sub-resonant cavities P1 and P2 according to an embodiment of the present invention;

[0048] Figure 12 This is a pressure difference curve between the two sub-resonant cavities P1 and P2 according to an embodiment of the present invention;

[0049] Figure 13 This is a schematic diagram of a vehicle according to an embodiment of the present invention.

[0050] Figure label:

[0051] Vehicle 1000; Electric compressor 100; Air conditioning system 200; Exhaust path S;

[0052] Shell structure 10; high-pressure chamber 10a; gas channel 10b; resonant cavity 10c; sub-resonant cavity 101c; connecting groove 102c; first connecting channel 10d; second connecting channel 10e;

[0053] High-pressure casing 11; groove 111; inner wall 1111; outer wall 1112; refrigerant outlet 11a;

[0054] Separator 12; partition plate 121; sealing gasket 122; low-pressure housing 13; refrigerant inlet 131;

[0055] Sliding structure 21; connecting groove 21a; elastic element 22. Detailed Implementation

[0056] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0057] The following is for reference. Figures 1-12 An electric compressor 100 according to an embodiment of the present invention is described.

[0058] According to a first aspect of the present invention, an electric compressor 100 includes a housing structure 10, a compression structure, a motor, and a sliding structure 21. A high-pressure chamber 10a and a refrigerant discharge port 11a are formed on the housing structure 10. The internal space of the housing structure 10 includes an exhaust path S formed by a refrigerant flow space from the high-pressure chamber 10a to the refrigerant discharge port 11a, including the high-pressure chamber 10a.

[0059] The compression structure is used to compress the refrigerant and can discharge the compressed refrigerant into the high-pressure chamber 10a. The housing structure 10 can discharge the refrigerant to the outside of the housing structure 10 through the refrigerant discharge port 11a. The motor is mounted on the housing structure 10 and is used to drive the compression structure to compress the refrigerant.

[0060] Reference Figure 1 The shell structure 10 has a resonant cavity 10c inside its shell wall, and the resonant cavity 10c is connected to two different positions on the exhaust path S.

[0061] The exhaust path S includes a high-pressure chamber 10a and a space for refrigerant flow. The resonant chamber 10c can be connected to the high-pressure chamber 10a in the exhaust path S, or it can be connected to other spaces in the exhaust path S for refrigerant flow. Specifically, one of these two connection points is connected to the high-pressure chamber 10a, and the other is connected to other locations in the exhaust path S besides the high-pressure chamber 10a. Alternatively, both connection points can be connected to the high-pressure chamber 10a, but located at two different positions within the high-pressure chamber 10a. Because the two connection points are located at different positions in the exhaust path S, the pressures at the two connection points are different.

[0062] The sliding structure 21 is slidably disposed in the resonant cavity 10c, and the sliding structure 21 is arranged between two connected positions of the resonant cavity 10c and the exhaust path S. The sliding structure 21 can divide the resonant cavity 10c into sub-resonant cavities 101c located on both sides of the sliding structure, and the sliding structure 21 can adjust the volume of each sub-resonant cavity 101c.

[0063] It is understandable that, due to the different connection positions between the two sub-resonant cavities 101c and the exhaust path S of the shell structure 10, a pressure difference exists between the two sub-resonant cavities 101c. This pressure difference drives the sliding structure 21 to slide within the resonant cavity 10c. Furthermore, by adjusting the volume of the sub-resonant cavity 101c, the pressure amplitude of the exhaust-side structure connected to the sub-resonant cavity 101c can be adjusted; for example, reducing the volume of the sub-resonant cavity 101c relatively increases its pressure amplitude.

[0064] Reference Figure 1 The shell structure 10 has a resonant cavity 10c that communicates with the exhaust path S within its shell wall, thereby forming a cavity structure that satisfies the Helmholtz resonance principle, thus improving the airflow noise and pulsation on the exhaust side of the electric compressor 100.

[0065] Specifically, the electric compressor is a core component of vehicle refrigeration equipment. The operation of the electric compressor generates vibration and noise, affecting vehicle noise and creating subjective auditory problems. In related technologies, the high-pressure refrigerant discharged from the compression component of the electric compressor enters the high-pressure chamber and then leaves the compressor directly through the refrigerant outlet. The exhaust gas noise and pressure pulsations generated during the operation of the electric compressor can easily trigger resonance in various components of the vehicle's thermal management system, leading to vehicle noise and vibration problems.

[0066] According to an embodiment of the present invention, the electric compressor 100, by providing a resonant cavity 10c communicating with the exhaust path S on the housing structure 10, forms a cavity structure that satisfies the Helmholtz resonance principle, thereby improving the airflow noise and pulsation of the electric compressor 100 on the exhaust side, and improving the noise and pulsation of the refrigerant discharged by the electric compressor 100. When the electric compressor 100 is used in a vehicle 1000, it can improve the resonance problem of various components in the thermal management system of the vehicle 1000 caused by the exhaust airflow noise and pressure pulsation of the electric compressor 100, and improve the noise and vibration caused to the vehicle 1000. At the same time, by sliding the sliding structure 21 in the resonant cavity 10c to adjust the volume of the two sub-resonant cavities 101c, the pressure amplitude of the sub-resonant cavities 101c can be adjusted, thereby adjusting the volume of the sub-resonant cavities 101c according to the pressure fluctuation at the exhaust path S, and thus making the exhaust pressure of the compressor 100 more stable in one exhaust cycle.

[0067] It should be noted that the "Helmholtz resonance principle" is well known to those skilled in the art. Based on the proposal in this application that "a resonance cavity 10c connected to the exhaust path S can be provided on the shell structure 10 to form a cavity structure that satisfies the Helmholtz resonance principle", those skilled in the art can match and calculate the specific dimensions that the resonance cavity 10c needs to meet according to the specific requirements of different working conditions. Therefore, this application does not limit the specific dimensions.

[0068] In addition, in some embodiments, the electric compressor 100 can be a horizontal compressor, and the motor and compression structure in the electric compressor 100 can be arranged laterally.

[0069] In this application, the compression structure can be constructed as a dynamic and static scroll-type electric compression mechanism, or it can be constructed as a screw-type electric compression mechanism, etc. No specific limitation is made here; that is, the compression structure only needs to meet the compression requirements of the cold medium. Correspondingly, the drive structure is a drive device suitable for driving the compression structure to perform the compression action.

[0070] In some embodiments of the present invention, such as Figure 1 As shown, the exhaust path S also includes a gas channel 10b formed on and through the shell wall of the shell structure 10, and the refrigerant outlet 11a is connected to the high-pressure chamber 10a through the gas channel 10b.

[0071] After the compression structure discharges the compressed refrigerant into the high-pressure chamber 10a, the high-pressure refrigerant in the high-pressure chamber 10a can be discharged through the gas channel 10b to the refrigerant outlet 11a, and then discharged from the shell structure from the refrigerant outlet 11a.

[0072] The resonant cavity 10c is connected to the gas channel 10b and the high-pressure cavity 10a respectively to improve the noise and pulsation at the exhaust channel 10b and the high-pressure cavity 10a. The two sub-resonant cavities 101c located on both sides of the sliding structure 21 are connected to the high-pressure cavity 10a and the gas channel 10b respectively.

[0073] Combination Figure 7 and Figure 8 The sliding structure 21 can slide within the resonant cavity 10c and can divide the resonant cavity 10c into two non-communicating sub-resonant cavities 101c. One sub-resonant cavity 101c is connected to the high-pressure cavity 10a, and the other sub-resonant cavity 101c is connected to the gas channel 10b. That is, the two sub-resonant cavities 101c are respectively connected to the exhaust side of the shell structure 10 (including the high-pressure cavity 10a and the gas channel 10b), so the pressure of the two sub-resonant cavities 101c can be adjusted by the sliding action of the sliding structure 21 within the resonant cavity 10c.

[0074] Specifically, when the sliding structure 21 slides towards the side where the resonant cavity 10c connects to the gas channel 10b, the volume of the sub-resonant cavity 101c between the sliding structure 21 and the gas channel 10b decreases, and correspondingly, the volume of the sub-resonant cavity 101c between the sliding structure 21 and the high-pressure cavity 10a increases. At this time, the pressure amplitude of the high-pressure cavity 10a can be reduced. When the sliding structure 21 slides towards the side where the resonant cavity 10c connects to the high-pressure cavity 10a, the volume of the sub-resonant cavity 101c between the sliding structure 21 and the gas channel 10b increases, and correspondingly, the volume of the sub-resonant cavity 101c between the sliding structure 21 and the high-pressure cavity 10a decreases. At this time, the pressure amplitude at the gas channel 10b can be reduced.

[0075] Therefore, by sliding the sliding structure 21 within the resonant cavity 10c according to the pressure fluctuations of the high-pressure cavity 10a and the gas channel 10b, the volume of the sub-resonant cavities 101c located on both sides of the sliding structure 21 is adjusted, thereby making the exhaust pressure of the electric compressor 100 more stable within one exhaust cycle.

[0076] It should be noted that the electric compressor 100 is used to compress the refrigerant. The refrigerant compressed by the compression structure can be discharged to the high-pressure chamber 10a. The medium in the high-pressure chamber 10a can be discharged from the shell structure 10 through the gas channel 10b. During the process of discharging the medium by the compression structure, airflow noise and pressure pulsation will be generated.

[0077] This application provides a resonant cavity 10c in the shell structure 10. Since the resonant cavity 10c is connected to a space filled with a gaseous medium (e.g., high-pressure chamber 10a, gas channel 10b), the gas inside the resonant cavity 10c can resonate, thereby improving the airflow noise and pressure pulsation flowing out through the gas channel 10b. Because the resonant cavity 10c in this application is divided into two sub-resonant cavities 101c by the sliding structure 21, the two sub-resonant cavities 101c can respectively improve the airflow noise and pressure pulsation in the gas channel 10b and the high-pressure chamber 10a.

[0078] It is understood that the two sub-resonant cavities 101c in this application are respectively connected to one of the gas channel 10b and the high-pressure cavity 10a to form a cavity structure that satisfies the Helmholtz resonance principle, so as to improve the airflow noise and pressure pulsation in the high-pressure cavity 10a and the gas channel 10b of the electric compressor 100 through the cavity structure.

[0079] Furthermore, referring to Figures 1-4In this application, the resonant cavity 10c is formed inside the shell wall of the shell structure 10. Thus, the resonant cavity 10c can be defined based solely on the shell structure 10, eliminating the need to separately install silencing devices on structures such as the high-pressure chamber 10a, gas passage 10b, and compression structure. This allows for a reasonable reduction in the number of internal components of the electric compressor 100 while ensuring noise reduction, thereby reducing the structural complexity of the electric compressor 100.

[0080] like Figures 1-4 In some embodiments of the present invention, an elastic element 22 is also provided in the resonant cavity 10c. The elastic element 22 is connected between the wall of the resonant cavity 10c and the sliding structure 21 to support the sliding structure 21 in the sliding direction.

[0081] Understandably, the elastic element 22 can effectively limit the sliding stroke of the sliding structure 21 in the sliding direction, preventing excessive sliding distance of the sliding structure 21 due to excessive instantaneous pressure changes on the exhaust side of the housing structure 10. This also prevents the sliding structure 21 from blocking the connection between the resonant cavity 10c and the gas channel 10b or high-pressure cavity 10a, thus improving the reliability of the sliding structure 21 in adjusting the volume of the two sub-resonant cavities 101c. Furthermore, when the electric compressor 100 is not in operation, the elastic element 22 can also reset the sliding structure 21.

[0082] like Figures 1-4 As shown, in some embodiments of the present invention, the elastic element 22 is constructed as a spring, with both ends of the spring connected to the wall of the resonant cavity 10c and the sliding structure 21, respectively. The spring is supported between the wall of the resonant cavity 10c and the sliding structure 21. When the sliding structure 21 slides toward the spring, the sliding structure 21 compresses the spring and the spring stores energy. When the force driving the sliding structure 21 to compress the spring decreases, the spring can drive the sliding structure 21 to slide away from the spring.

[0083] In some embodiments of the present invention, there are two elastic elements 22, which are respectively arranged in two sub-resonant cavities 101c, and each elastic element 22 is supported between the wall of the sub-resonant cavity 101c and the sliding structure 21, thereby further improving the stability of the sliding process of the sliding structure 21, and improving the limiting and resetting effect of the elastic element 22 on the sliding structure 21.

[0084] Reference Figure 1The sliding structure 21 divides the resonant cavity 10c into two spaced sub-resonant cavities 101c, each containing an elastic element 22. When the sliding structure 21 slides to the left, the volume of the sub-resonant cavity 101c on the left decreases, while the volume of the sub-resonant cavity 101c on the right increases. During the sliding process, the sliding structure 21 compresses the elastic element 22 on the left and stretches the elastic element 22 on the right.

[0085] It should be noted that the number of elastic elements 22 is at least one, and the number of elastic elements 22 is not limited to two. The number of elastic elements 22 in the sub-resonance cavity 101c can be adjusted according to design requirements to ensure the stability of the sliding structure 21 during the sliding process. For example, one or more elastic elements 22 can be provided in only one sub-resonance cavity 101c, or one or more elastic elements 22 can be provided in both sub-resonance cavities 101c.

[0086] In some embodiments of the present invention, the two elastic elements 22 have the same elastic coefficient, thereby improving the stability of the sliding structure 21 during the sliding process.

[0087] In other embodiments of the present invention, the elastic coefficients of the two elastic elements 22 may also be different. Specifically, the elastic coefficients of the two elastic elements 22 can be adjusted according to design requirements to meet different sliding needs of the sliding structure 21.

[0088] Reference Figure 1 In some embodiments of the present invention, the sliding structure 21 is constructed as a slider, the cross-sectional shape of which is adapted to the cross-sectional shape of the resonant cavity 10c, so that the resonant cavity 10c is divided into two sub-resonant cavities 101c located on both sides of the slider by the slider fitting against the wall of the resonant cavity 10c.

[0089] like Figure 3 As shown, in some embodiments of the present invention, the inner wall surface of the resonant cavity 10c is provided with a connecting groove 102c, which can connect the sub-resonant cavities 101c located on both sides of the sliding structure 21.

[0090] The sliding structure 21 can be restricted to slide between the first position and the second position by the elastic element 22. (See reference...) Figure 7 and Figure 8 When the sliding structure 21 is in the first position, the sub-resonant cavities 101c on both sides of the sliding structure 21 are connected; when the sliding structure 21 is in the second position, the sub-resonant cavities 101c on both sides of the sliding structure 21 are not connected.

[0091] Understandably, when the slider structure slides from the second position to the first position, the two sub-resonant cavities 101c switch from a non-connected state to a connected state. At this time, the pressure fluctuation within the two sub-resonant cavities 101c will undergo a sudden change. Specifically, when the two sub-resonant cavities 101c switch to the connected state, the volume of the two sub-resonant cavities 101c instantly increases to the sum of their volumes. At this time, the pressure within the resonant cavity 10c will undergo a sudden change to meet various pressure regulation requirements.

[0092] In some embodiments of the present invention, the connecting groove 102c is constructed as a groove structure, and the connecting groove 102c is further recessed from the inner wall surface of the resonant cavity 10c along the thickness direction. The connecting groove 102c is located at the sub-resonant cavity 101c connected to the high-pressure cavity 10a. When the pressure in the gas channel 10b is too high, the sliding structure 21 slides towards the sub-resonant cavity 101c connected to the high-pressure cavity 10a to adjust the pressure in the gas channel 10b. If the sliding structure 21 still cannot meet the pressure adjustment requirements in the gas channel 10b, the sliding structure 21 will further slide towards the sub-resonant cavity 101c connected to the high-pressure cavity 10a to a first position. At this time, the two sub-resonant cavities 101c are connected, which can quickly adjust the pressure in the gas channel 10b and prevent the pressure in the gas channel 10b from becoming too high.

[0093] It should be noted that the extension length and setting position of the connecting groove 102c can be adaptively adjusted according to the requirements of pressure adjustment of high pressure chamber 10a, gas channel 10b and length of resonant chamber 10c.

[0094] like Figure 4 As shown, in a further embodiment of the present invention, the slider is provided with a connecting groove 21a, the connecting groove 21a is provided on one side surface of the slider opposite to the connecting groove 102c, and the connecting groove 102c is formed at the end of the slider away from the connecting groove 102c, and the connecting groove 21a is connected to the sub-resonant cavity 101c which is connected to the gas channel 10b.

[0095] It is understood that when the connecting groove 102c and the connecting groove 21a correspond at least partially in the sliding direction of the slider, the connecting groove 102c and the connecting groove 21a are connected to connect the two sub-resonant cavities 101c. Further integration Figure 3 By setting the connecting groove 21a in the slider, the sliding stroke of the slider can be reasonably shortened. In other words, the two sub-resonant cavities 101c can be connected by sliding the slider a shorter distance.

[0096] It should be noted that the "connecting groove" can be formed on the slider. For example, the "connecting groove" can be set through the slider along the sliding direction, and the wall of the resonant cavity 10c can be formed with a raised structure that matches the cross-sectional shape of the "connecting groove" on the slider. The raised structure can be embedded in the "connecting groove" to divide the resonant cavity 10c into two sub-resonant cavities 101c by the slider. When the slider slides to the position where the raised structure disengages from the "connecting groove", the two sub-resonant cavities 101c can be connected through the "connecting groove".

[0097] like Figures 1-4 As shown, in some embodiments of the present invention, the housing structure 10 includes a high-pressure housing 11 and a partition 12, with a gas passage 10b formed on the high-pressure housing 11. The partition 12 is connected to the high-pressure housing 11 and defines a high-pressure chamber 10a.

[0098] The resonant cavity 10c is formed within the high-pressure housing 11 and / or the partition 12. That is, the resonant cavity 10c may be formed only within the high-pressure housing 11; the resonant cavity 10c may be formed only within the partition 12; or the resonant cavity 10c may be formed within both the high-pressure housing 11 and the partition 12.

[0099] Furthermore, the resonant cavity 10c can be defined by the high-pressure housing 11; the resonant cavity 10c can be defined by the partition 12; or the resonant cavity 10c can be jointly defined by the high-pressure housing 11 and the partition 12. When the resonant cavity 10c is defined by either the high-pressure housing 11 or the partition 12 alone, the resonant cavity 10c can be formed within the shell wall of the high-pressure housing 11 or the partition 12.

[0100] Among them, reference Figures 1-4 When the chamber structure of the resonant cavity 10c is jointly defined by the partition 12 and the high-pressure housing 11, both the high-pressure housing 11 and the partition 12 form a portion of the wall of the resonant cavity 10c. Through the connection and cooperation between the high-pressure housing 11 and the partition 12, the resonant cavity 10c, which communicates with the high-pressure cavity 10a, is defined. It can be understood that constructing the resonant cavity 10c as a chamber structure jointly defined by the partition 12 and the high-pressure housing 11 can reduce the processing difficulty of the resonant cavity 10c.

[0101] In some embodiments of the present invention, there are multiple resonant cavities 10c. The arrangement of multiple resonant cavities 10c can further improve the effect of reducing airflow noise and pressure pulsation on the exhaust side of the housing structure 10.

[0102] Multiple resonant cavities 10c can be formed on the high-pressure housing 11; multiple resonant cavities 10c can be formed on the high-pressure housing 11; both the high-pressure housing 11 and the partition 12 have resonant cavities 10c, and each resonant cavity 10c is relatively independent and not connected to each other.

[0103] In some embodiments of the present invention, resonant cavities 10c are formed in both the high-pressure housing 11 and the partition 12. Each resonant cavity 10c is connected to either the high-pressure cavity 10a or the gas channel 10b. Furthermore, the resonant cavity 10c of the high-pressure housing 11 is connected to the resonant cavity 10c of the partition 12. The sliding structure 21 can be optionally disposed within the resonant cavity 10c of the high-pressure housing 11 and / or the partition 12, depending on the configuration requirements. The resonant cavity 10c of the high-pressure housing 11 and the resonant cavity 10c of the partition 12 can be connected via a connecting structure such as a connecting hole. It is understood that, since the multiple resonant cavities 10c are interconnected, providing a sliding structure 21 within at least one resonant cavity 10c can also achieve pressure regulation at the gas channel 10b.

[0104] like Figures 1-4 As shown, in some embodiments of the present invention, the end face of the high-pressure housing 11 connected to the separator 12 is formed with a groove 111 with an opening facing the separator 12. The separator 12 blocks the opening of the groove 111 to define the resonant cavity 10c with the high-pressure housing 11.

[0105] Reference Figure 1 The groove 111 is formed in the wall of the high-pressure housing 11, and the groove 111 is recessed from the end face of the high-pressure housing 11 that abuts against the partition 12 along the axial direction of the high-pressure housing 11. When the partition 12 is connected and engaged with the high-pressure housing 11, the partition 12 can block the opening of the groove 111 so as to define the resonant cavity 10c with the groove 111.

[0106] The recessed direction of the groove 111 is axial with that of the high-pressure housing 11, and the wall of the high-pressure housing 11 also extends axially, thereby increasing the recessed depth of the groove 111. It is understood that the recessed depth of the groove 111 affects the size of the resonant cavity 10c. The greater the recessed depth of the groove 111, the longer the resonant cavity 10c, which improves the attenuation effect of the resonant cavity 10c on the noise and pressure pulsation of the exhaust side of the electric compressor 100. Simultaneously, it increases the sliding stroke of the sliding structure 21, further increasing the volume variation range of the sub-resonant cavity 101c, thereby enhancing the ability to regulate the pressure at the gas channel 10b.

[0107] like Figures 1-4 As shown, in some embodiments of the present invention, the groove 111 is constructed as a concave structure with equal cross-section, that is, at any position in the concave direction of the groove 111 (i.e., the axial direction of the high-pressure housing 11), the cross-sectional shape and size of the groove 111 are consistent, thereby reducing the processing difficulty of the groove 111.

[0108] In some embodiments of the present invention, the resonant cavity 10c extends along the axial direction of the high-pressure housing 11, and the gas channel 10b extends along the radial direction of the high-pressure housing 11, that is, the extension direction of the gas channel 10b is perpendicular to the extension direction of the resonant cavity 10c, thereby facilitating the processing of the resonant cavity 10c and the gas channel 10b, and facilitating the connection between the resonant cavity 10c and the gas channel 10b.

[0109] In some embodiments of the present invention, the groove 111 includes a first transition segment 111b and a second segment connected sequentially in the recessed direction. The cross-sectional dimension of the first segment is larger than that of the second segment, and the cross-sectional dimension of the transition segment 111b gradually decreases from the end where the transition segment 111b is connected to the first segment to the end where the transition segment 111b is connected to the second segment. It is understood that when the groove 111 is constructed as a multi-segment recessed structure with varying cross-sectional dimensions, it is equivalent to opening a connecting groove 102c in the radial direction of the first segment, which has a larger cross-sectional dimension than the second segment.

[0110] It should be noted that the structure of the groove 111 is not limited to the multi-segment recessed structure and the equal cross-section recessed structure mentioned above. It can also be a recessed structure with gradually changing cross-sectional dimensions, etc. That is, the shape and size of the groove 111 can be designed according to the design requirements.

[0111] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the resonant cavity 10c is formed with a first communication channel 10d communicating with the high-pressure cavity 10a, thereby connecting the resonant cavity 10c and the high-pressure cavity 10a. Sound waves and airflow in the high-pressure cavity 10a can enter the resonant cavity 10c through the first communication channel 10d and cause resonance, thereby improving the airflow noise and pressure pulsation in the high-pressure cavity 10a through the resonant cavity 10c.

[0112] In some embodiments of the present invention, the first connecting channel 10d is disposed on the wall surface of the groove 111 and / or on the partition 12. Specifically, the first connecting channel 10d may be disposed only on the wall surface of the groove 111; the first connecting channel 10d may be disposed only on the partition 12; the first connecting channel 10d is defined by the wall surface of the groove 111 and the partition 12.

[0113] like Figure 1 As shown, in a further embodiment of the present invention, the groove 111 has an inner wall 1111 and an outer wall 1112. One end of the outer wall 1112 facing the separator 12 is fitted with the separator 12. The length of the inner wall 1111 is less than the length of the outer wall 1112, and one end of the inner wall 1111 facing the separator 12 is spaced apart from the separator 12 to form a first communicating channel 10d.

[0114] In this context, "inner wall 1111" refers to the inner wall surface of the groove 111 in the radial direction, that is, the wall surface of the groove 111 adjacent to the high-pressure chamber 10a, and "outer wall 1112" refers to the outer wall surface of the groove 111 in the radial direction, that is, the wall surface of the groove 111 away from the high-pressure chamber 10a.

[0115] Specifically, refer to Figure 1 The separator 12 is disposed at the axial end of the high-pressure housing 11 and is positioned opposite the opening of the groove 111. When the axial length of the inner wall 1111 is less than the axial length of the outer wall 1112, a gap can be reserved between the inner wall 1111 and the separator 12 to form the aforementioned first connecting channel 10d. The formation of the first connecting channel 10d is simple; that is, the first connecting channel 10d can be formed simply by machining the end of the groove 111.

[0116] like Figure 2 As shown, in some embodiments of the present invention, the surface of the separator 12 facing the groove 111 forms a first connecting channel 10d, the first connecting channel 10d spans the inner wall 1111 of the groove 111, and the radially outer end of the first connecting channel 10d connects to the groove 111 while the radially inner end connects to the high-pressure chamber 10a.

[0117] The groove 111 is located on the radial outer side of the high-pressure chamber 10a, so that the radial outer end of the first connecting channel 10d formed on the partition 12 is connected to the groove 111 and the radial inner end is connected to the high-pressure chamber 10a. Thus, the first connecting channel 10d can be formed by simply opening a groove structure, hole structure, etc. in the partition 12. The inner wall 1111 and the outer wall 1112 of the groove can be kept flush with the end of the side of the partition 12, so as to reduce the processing difficulty of the high-pressure housing 11.

[0118] Reference Figure 2 The surface of the separator 12 facing the groove 111 has a groove structure. The groove structure is recessed from the surface of the separator 12 opposite to the groove 111 toward the side away from the groove 111, and the groove structure corresponds at least partially to the open end port of the groove 111 in the radial direction.

[0119] like Figure 1 As shown, a first connecting channel 10d is formed on the wall of the groove 111. The first connecting channel 10d is disposed through the wall of the groove 111 along the thickness direction to connect the resonant cavity 10c with the high-pressure cavity 10a.

[0120] Furthermore, the first connecting channel 10d is formed at the end of the groove 111, thereby reducing the processing difficulty of the first connecting channel 10d, for example, by opening a notch at the end of the wall of the groove 111. When the separator 12 is connected and engaged with the high-pressure housing 11, the separator 12 can define the first connecting channel 10d at the notch of the groove 111.

[0121] like Figure 2 As shown, a first connecting channel 10d is formed on the partition 12. The first connecting channel 10d is provided on the surface of the partition 12 opposite to the high-pressure housing 11, and is constructed as a groove structure with the opening facing the side of the high-pressure housing 11. A part of the opening of the groove structure is directly opposite to the opening of the groove 111, and a part of the opening of the groove structure corresponds to the high-pressure cavity 10a, thereby connecting the high-pressure cavity 10a and the groove 111 through the first connecting channel 10d.

[0122] like Figure 1 As shown, in some embodiments of the present invention, the wall of the groove 111 is formed with a second communication channel 10e that communicates with the gas channel 10b, thereby connecting the resonant cavity 10c with the gas channel 10b. Sound waves and airflow at the gas channel 10b can enter the resonant cavity 10c through the second communication channel 10e and cause resonance, thereby improving airflow noise and pressure pulsation at the gas channel 10b through the resonant cavity 10c.

[0123] like Figure 1 As shown, in some embodiments of the present invention, the second connecting channel 10e is connected between the groove 111 and the gas channel 10b, the groove 111 and the second connecting channel 10e extend along the axial direction of the housing structure 10, and the axial length of the groove 111 is greater than the axial length of the second connecting channel 10e.

[0124] In this application, the second connecting channel 10e is formed on the wall surface adjacent to the groove 111 and the gas channel 10b, and the second connecting channel 10e penetrates the wall surface to connect the resonant cavity 10c and the gas channel 10b.

[0125] It is understandable that in order to reasonably increase the volume of the resonant cavity 10c, the thickness of the wall between the groove 111 and the gas channel 10b can be reduced, and the axial length of the second connecting channel 10e will be reduced accordingly. Thus, by constructing the axial length of the groove 111 to be greater than the axial length of the second connecting channel 10e, the volume of the formed resonant cavity 10c can be guaranteed, and the effect of the resonant cavity 10c in improving noise and turbulence can be further enhanced.

[0126] like Figure 1As shown, in some embodiments of the present invention, the axial length of the groove 111 is at least half the axial length of the high-pressure housing 11, thereby maximizing the length of the groove 111 in the axial direction to increase the volume of the resonant cavity 10a, thereby enhancing the effect of the resonant cavity 10a in reducing noise and pulsation.

[0127] Specifically, the high-pressure housing 11 forms a high-pressure cavity 10a, and a groove 111 is formed in the wall of the high-pressure housing 11. When the opening size of the groove 111 is fixed, the volume of the resonant cavity 10c formed by the groove 111 can be reasonably increased by increasing the recess depth of the groove 111 in the axial direction, thereby further improving the noise and turbulence effect of the electric compressor 1000 on the exhaust side.

[0128] Understandably, referring to Figure 1 When it is necessary to maintain communication between the resonant cavity 10c and the gas channel 10b, the resonant cavity 10c and the gas channel 10b are simultaneously arranged on the same side of the high-pressure cavity 10a, thereby ensuring the communication effect between the resonant cavity 10c and the gas channel 10b. Therefore, it is necessary to reserve space in the shell wall of the high-pressure housing 11 where the groove 111 is formed to form the gas channel 10b, so that the gas channel 10b is formed in a position suitable for communication with the high-pressure cavity 10a.

[0129] Reference Figure 1 In some embodiments of the present invention, the cross-sectional area of ​​the second connecting channel 10e is smaller than that of the gas channel 10b, thereby preventing a large amount of gaseous medium from entering the resonant cavity 10c through the second connecting channel 10e and ensuring the effective discharge of the gaseous cold medium from the gas channel 10b. It is understood that if the cross-sectional size of the second connecting channel 10e is too large, it will affect the effect of the resonant cavity 10c in improving airflow noise and pressure pulsation.

[0130] In some embodiments of the present invention, the separator 12 is configured as a partition plate, and the housing structure 10 further includes a low-pressure housing 13. An inlet for the refrigerant is formed on the low-pressure housing 13. The partition plate is disposed between the low-pressure housing 13 and the high-pressure housing 11, and a compression structure is installed on the partition plate. The refrigerant entering the housing structure 10 through the inlet can enter the compression structure. The low-pressure housing 13 and the high-pressure housing 11 have two oppositely arranged openings. The partition plate is disposed at the ends of the low-pressure housing 13 and the high-pressure housing 11, and respectively fits against the end faces of the low-pressure housing 13 and the high-pressure housing 11.

[0131] In some embodiments of the present invention, the shell structure 10 can be connected and cooperated with the pipe structure, and the refrigerant can be transported to the compression structure through the pipe structure, and the refrigerant can be compressed through the compression structure.

[0132] In some embodiments of the present invention, the partition 12 is disposed inside the high-pressure housing 11, the high-pressure housing 11 forms an open chamber structure, and the partition 12 is arranged inside the high-pressure housing 11.

[0133] In some other embodiments of the invention, the end of the high-pressure housing 11 is open, and a partition 12 is disposed at the open end of the high-pressure housing, the partition 12 being disposed at the end of the high-pressure housing 11.

[0134] In some embodiments of the present invention, the partition 12 may only include the partition plate 121. In this case, if the resonant cavity 10c is formed on the high-pressure housing 11, the end of the resonant cavity 10c that is open toward the partition 12 can be sealed by the partition plate 121. Alternatively, the partition 12 may also include both the partition plate 121 and the sealing gasket 122, with the sealing gasket 122 disposed between the partition plate 121 and the high-pressure housing 11. In this case, if the resonant cavity 10c is formed on the high-pressure housing 11, the end of the resonant cavity 10c that is open toward the partition 12 can be sealed by the sealing gasket 122 to improve the sealing performance between the partition 12 and the high-pressure housing 11.

[0135] In some embodiments of the present invention, the refrigerant is one of R134a, R744, R290 and R1234yf, and the electric compressor 100 of this application is applicable to one of the above-mentioned refrigerants.

[0136] In some embodiments of the present invention, the compression structure is configured as one of a scroll electric compressor, a rotary electric compressor, and a piston electric compressor. Therefore, the electric compressor 100 of this application can be configured as one of a scroll electric compressor, a piston electric compressor, and a rotary electric compressor.

[0137] In some embodiments, the housing structure 10 includes a partition 121, the motor body and the compression structure are respectively placed on both sides of the partition 121, the drive shaft of the motor passes through the partition 121 to connect with the compression structure, a low-pressure chamber for accommodating the motor body is also formed inside the housing structure 10, and a refrigerant inlet 131 communicating with the low-pressure chamber is formed on the housing structure 10, and the compression structure draws refrigerant from the low-pressure chamber.

[0138] Therefore, the electric compressor 100 can be a low back pressure compressor, which is beneficial for the application of new energy vehicles such as pure electric vehicles and hybrid vehicles. When used in these vehicles 1000, it can improve the noise and pressure pulsation of the exhaust airflow caused by the electric compressor 100, improve the resonance problem of the thermal management system of the vehicle 1000, and improve the noise and vibration caused to the vehicle 1000.

[0139] In a further embodiment, the housing structure 10 further includes a high-pressure housing 11 and a low-pressure housing 13, with a partition 121 sandwiched between the high-pressure housing 11 and the low-pressure housing 13, a low-pressure cavity formed between the partition 121 and the low-pressure housing 13, and a high-pressure cavity 10a formed between the partition 121 and the high-pressure housing 11.

[0140] In some embodiments, a partition 121 is sandwiched between a low-pressure housing 13 and a high-pressure housing 11, a high-pressure chamber 10a is located between the partition 121 and the high-pressure housing 11, and a compression structure is disposed within the high-pressure chamber 10a. This simplifies the structure, simplifies assembly, improves production efficiency, and enhances connection reliability. For example, this structure can be applied to rotary compressors, but the structure of rotary compressors is not limited to this. Furthermore, this structure is also applicable to scroll compressors, but the structure of scroll compressors is not limited to this.

[0141] An air conditioning system 200 according to a second aspect of the present invention may include an electric compressor according to any embodiment of the first aspect of the present invention. Since the exhaust noise and pulsation of the electric compressor 100 according to any embodiment of the first aspect of the present invention can be improved, when the electric compressor 100 is used in the air conditioning system 200, the pressure pulsation and noise problems caused to the air conditioning system 200 due to the exhaust airflow noise and pressure pulsation of the electric compressor 100 can be improved.

[0142] According to a third-party embodiment of the present invention, the vehicle 1000 includes the air conditioning system 200 described in any of the above embodiments. Here, the vehicle 1000 may be a new energy vehicle.

[0143] In some embodiments, the new energy vehicle may be a pure electric vehicle with an electric motor as the main driving force, and in other embodiments, the new energy vehicle may be a hybrid vehicle with both an internal combustion engine and an electric motor as the main driving force.

[0144] Regarding the internal combustion engine and electric motor mentioned in the above embodiments that provide driving power for new energy vehicles, the internal combustion engine can use gasoline, diesel, hydrogen, etc. as fuel, while the electric motor can be powered by a power battery, hydrogen fuel cell, etc., without special limitations. It should be noted that this is merely an illustrative description of the structure of new energy vehicles, etc., and is not intended to limit the scope of protection of this invention.

[0145] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0146] In the description of this invention, "a plurality of" means two or more.

[0147] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0148] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric compressor, characterized in that, include: A shell structure having a high-pressure chamber and a refrigerant outlet, wherein the internal space of the shell structure includes an exhaust path formed by the refrigerant flow space from the high-pressure chamber to the refrigerant outlet, including the high-pressure chamber. A compression structure, the compression structure being adapted to discharge compressed refrigerant into the high-pressure chamber, and the housing structure being adapted to discharge refrigerant to the outside of the housing structure through the refrigerant discharge port; An electric motor is used to drive the compression structure to compress the refrigerant; The shell structure has a resonant cavity formed inside the shell wall, and the resonant cavity is connected to two different positions on the exhaust path; A sliding structure is slidably disposed within the resonant cavity and located between two communicating positions of the resonant cavity and the exhaust path. The sliding structure is adapted to divide the resonant cavity into sub-resonant cavities located on both sides of the sliding structure, and the volume of each sub-resonant cavity can be adjusted. The exhaust path also includes a gas channel formed in and penetrating the shell wall of the housing structure. The refrigerant outlet is connected to the high-pressure chamber through the gas channel. The two sub-resonant cavities located on both sides of the sliding structure are connected to the high-pressure chamber and the gas channel, respectively.

2. The electric compressor according to claim 1, characterized in that, It also includes an elastic element connected between the wall of the resonant cavity and the sliding structure.

3. The electric compressor according to claim 2, characterized in that, The inner wall of the resonant cavity is provided with a connecting groove, which can connect the sub-resonant cavities located on both sides of the sliding structure.

4. The electric compressor according to claim 2, characterized in that, There are two elastic elements, which are respectively disposed on both sides of the sliding structure and supported between the wall of the resonant cavity and the sliding structure.

5. The electric compressor according to claim 1, characterized in that, The shell structure includes: A high-pressure housing, wherein the high-pressure housing forms the high-pressure chamber and the gas passage; A separator, which is connected to the high-pressure housing, and the resonant cavity is formed within the high-pressure housing and / or the separator.

6. The electric compressor according to claim 5, characterized in that, The high-pressure housing is open at one end, and the partition is located at the open end of the high-pressure housing.

7. The electric compressor according to claim 5, characterized in that, The separator is located on the inner side of the high-pressure housing.

8. The electric compressor according to claim 5, characterized in that, The resonant cavity is formed in both the high-pressure housing and the partition, and the resonant cavity of the high-pressure housing is connected to the resonant cavity of the partition.

9. The electric compressor according to claim 5, characterized in that, The high-pressure shell of the exhaust housing has a groove at its end with an opening facing the separator. The separator closes the opening of the groove to define the resonant cavity with the high-pressure shell of the exhaust housing.

10. The electric compressor according to claim 9, characterized in that, The shell structure is provided with a first communication channel connecting the resonant cavity and the high-pressure cavity.

11. The electric compressor according to claim 10, characterized in that, The first connecting channel is formed on the high-pressure housing and / or the separator.

12. The electric compressor according to claim 11, characterized in that, The groove has an inner wall and an outer wall. The end of the outer wall facing the separator is fitted with the separator. The length of the inner wall is less than the length of the outer wall, and the end of the inner wall facing the separator is spaced apart from the separator to form the first connecting channel.

13. The electric compressor according to claim 11, characterized in that, The surface of the separator facing the groove forms the first connecting channel, which spans the inner wall of the groove, and the radially outer end of the first connecting channel connects to the groove while the radially inner end connects to the high-pressure chamber.

14. The electric compressor according to claim 9, characterized in that, The housing structure is provided with a second connecting channel that connects the resonant cavity to the gas channel.

15. The electric compressor according to claim 14, characterized in that, The second connecting channel connects the groove and the gas channel, the groove and the second connecting channel extend axially along the housing structure, and the axial length of the groove is greater than the axial length of the second connecting channel.

16. The electric compressor according to claim 14, characterized in that, The cross-sectional area of ​​the second connecting channel is smaller than the cross-sectional area of ​​the gas channel.

17. The electric compressor according to claim 9, characterized in that, The axial length of the groove is at least half the axial length of the high-pressure housing.

18. The electric compressor according to claim 9, characterized in that, The resonant cavity is formed in both the high-pressure housing and the partition, and the resonant cavity of the high-pressure housing is connected to the resonant cavity of the partition.

19. The electric compressor according to claim 1, characterized in that, The housing structure includes a partition plate, the motor body and the compression structure are respectively placed on both sides of the partition plate, the drive shaft of the motor passes through the partition plate to connect with the compression structure, a low-pressure chamber is also formed inside the housing structure to accommodate the motor body, and a refrigerant suction port communicating with the low-pressure chamber is formed on the housing structure, and the compression structure draws refrigerant from the low-pressure chamber.

20. The electric compressor according to claim 19, characterized in that, The shell structure also includes a high-pressure shell and a low-pressure shell, with the partition plate sandwiched between the high-pressure shell and the low-pressure shell, the low-pressure cavity formed between the partition plate and the low-pressure shell, and the high-pressure cavity formed between the partition plate and the high-pressure shell.

21. The electric compressor according to claim 19, characterized in that, The shell structure further includes a high-pressure shell and a low-pressure shell, with the partition sandwiched between the low-pressure shell and the compression structure, and the high-pressure shell located on the side of the compression structure opposite to the partition.

22. An air conditioning system, characterized in that, Includes the electric compressor according to any one of claims 1-21.

23. A vehicle, characterized in that, Including the air conditioning system according to claim 22.

Images