Compressor, thermal management system, and vehicle

Abstract

A compressor, a thermal management system, and a vehicle. The compressor (100) comprises: a housing (20); and a plurality of compression units arranged in the housing (20), used for compressing a fluid, and transmittingly connected to each other. The compressor, the thermal management system, and the vehicle can improve the fluid compression efficiency or compression ratio, and reduce vibration and noise.

Description

Compressor, thermal management system and vehicle

[0001] Cross-reference to related applications

[0002] The present application claims priority to the Chinese patent application No. 202410544824.9, filed on April 30, 2024, and entitled “Compressor, thermal management system and vehicle”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of compressors, and in particular to a compressor, a thermal management system and a vehicle. BACKGROUND

[0004] Scroll compressor is a core component of the thermal management system of an electric vehicle, and its structure and performance affect the energy consumption, noise and vibration level of the vehicle. With the improvement of people's living standards and the requirements of the thermal management of electric vehicles, higher requirements are put forward for the performance, noise and vibration of the compressor. The working conditions of the compressor vary greatly, ranging from low pressure ratio to high pressure ratio. Often due to insufficient volume ratio of scroll structure design, the compressor cannot perform well under high pressure ratio conditions.

[0005] SUMMARY

[0006] One object of the present application is to provide a compressor.

[0007] Another object of the present application is to provide a thermal management system.

[0008] Still another object of the present application is to provide a vehicle.

[0009] According to the compressor of the embodiments of the present application, the compressor comprises a housing, a plurality of compression units arranged in the housing, the compression units being used for compressing fluid, and the plurality of compression units being drivingly connected.

[0010] According to the compressor of the embodiments of the present application, the compressor has a plurality of compression units, and the plurality of compression units are drivingly connected.

[0011] In addition, the compressor according to the above embodiments of the present application can also have the following additional technical features:

[0012] In some embodiments, the plurality of compression units are arranged along the axis of the housing, and an exhaust cavity is arranged between adjacent compression units, the exhaust cavity being connected to the exhaust port of one compression unit and the suction port of another compression unit.

[0013] In some embodiments, the compressor further comprises a one-way suction assembly, and the exhaust cavity is selectively connected to the suction port of the compressor through the one-way suction assembly.

[0014] In some embodiments, the compressor further comprises a one-way suction assembly, and the suction chamber is selectively communicated with a suction port of the compressor through the one-way suction assembly.

[0015] In some embodiments, the peripheral wall of the housing is provided with a suction passage arranged along an axial direction of the housing for selectively communicating with the suction chamber.

[0016] In some embodiments, the peripheral wall of the housing is provided with a suction passage arranged along an axial direction of the housing for selectively communicating with the suction chamber.

[0017] In some embodiments, the plurality of compression units comprises a first compression unit and a second compression unit, and the first compression unit and the second compression unit are connected in series.

[0018] In some embodiments, a first exhaust chamber is arranged between the first compression unit and the second compression unit, and the first exhaust chamber communicates an exhaust port of the first compression unit and a suction port of the second compression unit.

[0019] In some embodiments, the compressor comprises a first one-way suction assembly, and the first exhaust chamber is selectively communicated with a suction port of the compressor through the first one-way suction assembly.

[0020] In some embodiments, the compressor comprises a first one-way exhaust assembly, and the first exhaust chamber is selectively communicated with an exhaust port of the compressor through the first one-way exhaust assembly.

[0021] In some embodiments, the plurality of compression units further comprises a third compression unit, and the first compression unit, the second compression unit and the third compression unit are connected in series.

[0022] In some embodiments, a second exhaust chamber is arranged between the second compression unit and the third compression unit, and the second exhaust chamber communicates an exhaust port of the second compression unit and a suction port of the third compression unit.

[0023] In some embodiments, the compressor comprises a second one-way suction assembly, and the second exhaust chamber is selectively communicated with a suction port of the compressor through the second one-way suction assembly.

[0024] In some embodiments, the compressor comprises a second one-way exhaust assembly, and the second exhaust chamber is selectively communicated with an exhaust port of the compressor through the second one-way exhaust assembly.

[0025] In some embodiments, the plurality of compression units are connected in series to form a multi-stage compression structure.

[0026] In some embodiments, the displacement of the compression unit at the next level is less than or equal to the displacement of the compression unit at the previous level.

[0027] In some embodiments, at least one of the plurality of compression units is configured as a multi-tooth scroll compression structure.

[0028] In some embodiments, the multi-tooth scroll compression structure comprises a first scroll plate and a second scroll plate, the first scroll plate comprises a first base plate and a plurality of first scroll teeth arranged on the first base plate, the second scroll plate comprises a second base plate and a plurality of second scroll teeth arranged on the second base plate, the plurality of first scroll teeth form a plurality of compression channels, the first base plate or the second base plate is provided with a plurality of exhaust holes respectively communicating with the plurality of compression channels, the plurality of second scroll teeth are respectively arranged in the plurality of compression channels and respectively cooperated with the plurality of first scroll teeth for driving fluid along the compression channels to the corresponding exhaust holes, wherein one of the first scroll plate and the second scroll plate is a moving scroll and the other is a stationary scroll.

[0029] In some embodiments, the stationary scroll is provided with a first central through hole, the plurality of exhaust holes are arranged on the stationary scroll and distributed around the first central through hole, the moving scroll is provided with a second central through hole, and the compressor further comprises a crankshaft, the crankshaft comprises a main journal and a connecting rod journal, the main journal is arranged through the first central through hole, and the connecting rod journal is arranged through the second central through hole.

[0030] In some embodiments, at least one of the plurality of compression units is configured as a single-tooth scroll compression structure.

[0031] In some embodiments, the single-tooth scroll compression structure comprises a third scroll plate and a fourth scroll plate, the third scroll plate comprises a third base plate and a third scroll tooth arranged on the third base plate, the fourth scroll plate comprises a fourth base plate and a fourth scroll tooth arranged on the fourth base plate, and the fourth scroll tooth is cooperated with the third scroll tooth, wherein one of the third scroll plate and the fourth scroll plate is a moving scroll and the other is a stationary scroll.

[0032] In some embodiments, the compression unit further comprises a crankshaft, the compression units are distributed along the crankshaft and are drivingly connected with the crankshaft, the crankshaft has a driving end and a free end, the driving end is used for connecting a driving member, the compression unit connected to the free end is configured as a single-tooth scroll compression structure, and the other compression units are configured as multi-tooth scroll compression structures.

[0033] In some embodiments, the plurality of compression units are driven by the same crankshaft; and / or, the rotation angles of the stationary scrolls of at least two compression units have a phase difference.

[0034] In some embodiments, the compression unit comprises a static scroll, a dynamic scroll, and an anti-self-rotation structure, the anti-self-rotation structure is relatively static with the static scroll, one of the dynamic scroll and the anti-self-rotation structure is provided with at least one anti-self-loop, and the other is provided with a positioning part, the positioning part is pivotally positioned around a fixed radius in the anti-self-loop.

[0035] The heat management system according to an embodiment of the present application comprises the compressor as described above.

[0036] The vehicle according to an embodiment of the present application comprises the compressor as described above; or comprises the heat management system as described above. BRIEF DESCRIPTION OF DRAWINGS

[0037] Fig. 1 is a schematic view of a compressor according to an embodiment of the present application.

[0038] Fig. 2 is a schematic view of a static scroll of a compression unit of the compressor according to an embodiment of the present application.

[0039] Fig. 3 is a sectional view of the static scroll of the compression unit of the compressor according to an embodiment of the present application.

[0040] Fig. 4 is a schematic view of a dynamic scroll of the compression unit of the compressor according to an embodiment of the present application.

[0041] Fig. 5 is a schematic view of the compression unit according to an embodiment of the present application.

[0042] Fig. 6 is a side view of the compression unit according to an embodiment of the present application.

[0043] Fig. 7 is a sectional view of section A-A in Fig. 6.

[0044] Fig. 8 is a schematic view of one direction of a first scroll plate of a multi-tooth scroll compression structure according to an embodiment of the present application.

[0045] Fig. 9 is a schematic view of another direction of the first scroll plate of the multi-tooth scroll compression structure according to an embodiment of the present application.

[0046] Fig. 10 is a schematic view of one direction of a second scroll plate of the multi-tooth scroll compression structure according to an embodiment of the present application.

[0047] Fig. 11 is a schematic view of another direction of the second scroll plate of the multi-tooth scroll compression structure according to an embodiment of the present application.

[0048] Fig. 12 is a schematic view of still another direction of the second scroll plate of the multi-tooth scroll compression structure according to an embodiment of the present application.

[0049] Fig. 13 is a schematic view of the first scroll plate of the multi-tooth scroll compression structure according to another embodiment of the present application.

[0050] Fig. 14 is a schematic view of a second scroll plate of a multi-tooth scroll compression structure according to another embodiment of the present application.

[0051] Figs. 15 to 18 are schematic views of a first scroll plate and a second scroll plate of a multi-tooth scroll compression structure according to an embodiment of the present application, in which Figs. 15 to 18 are sequentially dynamic mating processes.

[0052] Fig. 19 is a schematic view of one direction of a first scroll plate of a multi-tooth scroll compression structure according to an embodiment of the present application.

[0053] Fig. 20 is a schematic view of another direction of a first scroll plate of a multi-tooth scroll compression structure according to an embodiment of the present application.

[0054] Fig. 21 is a schematic view of one direction of a second scroll plate of a multi-tooth scroll compression structure according to an embodiment of the present application.

[0055] Fig. 22 is a schematic view of another direction of a second scroll plate of a multi-tooth scroll compression structure according to an embodiment of the present application.

[0056] Fig. 23 is a schematic view of still another direction of a second scroll plate of a multi-tooth scroll compression structure according to an embodiment of the present application.

[0057] Fig. 24 is a comparison chart of a rotation angle and a torque of a multi-tooth scroll compression structure and a single-tooth scroll structure according to an embodiment of the present application.

[0058] Fig. 25 is a comparison chart of a rotation angle and an exhaust mass flow of a multi-tooth scroll compression structure and a single-tooth scroll structure according to an embodiment of the present application.

[0059] Fig. 26 is a schematic view of a fixed scroll plate of a single-tooth scroll compression structure of a compression unit according to an embodiment of the present application.

[0060] Fig. 27 is a schematic view of a moving scroll plate of a single-tooth scroll compression structure of a compression unit according to an embodiment of the present application.

[0061] Compressor 100, housing 20, suction passage 203, exhaust passage 204, first exhaust cavity 205, second exhaust cavity 206, first one-way suction assembly 211, first one-way exhaust assembly 212, second one-way suction assembly 221, second one-way exhaust assembly 222, compression unit 10, first compression unit 10a, second compression unit 10b, third compression unit 10c, first scroll plate 11, first bottom plate 111, first scroll tooth 112, first tooth head correction segment 1121, first inner involute segment 1122, first tooth tail connecting segment 1123, first outer involute segment 1124, second scroll plate 12, second bottom plate 121, second scroll tooth 122, second tooth head correction segment 1221, second inner involute segment 1222, second tooth tail connecting segment 1223, second outer involute segment 1224, third scroll plate 13, third bottom plate 131, third scroll tooth 132, fourth scroll plate 14, fourth bottom plate 141, fourth scroll tooth 142, compression passage 1001, exhaust hole 1002, convex part 1003, first center through hole 1004, second center through hole 1005, crankshaft 30. DETAILED DESCRIPTION

[0062] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0063] As shown in FIG. 1, the compressor 100 according to an embodiment of the present application includes a housing 20 and a plurality of compression units arranged in the housing 20, wherein the plurality of compression units are drivingly connected.

[0064] According to the compressor 100 of the embodiment of the present application, the plurality of compression units are drivingly connected, and the plurality of compression units can be used to drive and compress fluid, thereby improving the compression efficiency or compression ratio of the fluid.

[0065] As shown in FIG. 1, in some embodiments, the plurality of compression units are arranged along the axis of the housing 20, and an exhaust cavity is arranged between adjacent compression units, wherein the exhaust cavity is connected to the exhaust port of one compression unit and the suction port of another compression unit. By connecting the adjacent compression units through the exhaust cavity, multi-stage compression can be achieved, a larger compression ratio can be provided, and the performance of the compressor 100 can be optimized.

[0066] The compressor 100 further comprises a one-way suction component for controlling the on-off between the suction port of the compressor and the exhaust cavity; or in other words, the exhaust cavity is selectively communicated with the suction port of the compressor through the one-way suction component. By arranging the one-way suction component, it is convenient to supplement air from the suction port of the compressor to the exhaust cavity.

[0067] The compressor 100 further comprises a one-way exhaust component for controlling the on-off between the exhaust port of the compressor and the exhaust cavity; or in other words, the exhaust cavity is selectively communicated with the exhaust port of the compressor through the one-way exhaust component. By arranging the one-way exhaust component, it is convenient to exhaust air from the exhaust cavity to the exhaust port of the compressor.

[0068] For example, as shown in FIG. 1, during the operation of the compressor, the exhaust cavity may appear "lack of air" or "lack of air", whether it is "lack of air" or "lack of air", which will affect the operating efficiency of the compressor 100. When the exhaust cavity appears "lack of air", the one-way suction component can be used to supplement air to the exhaust cavity; when "lack of air" appears, the one-way exhaust component can be used to exhaust air, thereby avoiding the influence of the efficiency of the compressor 100 due to the "lack of air" or "lack of air" of the exhaust cavity, and improving the stability of the operation of the compressor 100.

[0069] The one-way suction component is configured to be one-way conductive from the suction port of the compressor to the exhaust cavity, and has a certain opening pressure; the one-way exhaust component is configured to be one-way conductive from the exhaust cavity to the exhaust port of the compressor, and has a certain opening pressure.

[0070] In addition, in some embodiments, the peripheral wall of the shell 20 can be provided with an exhaust passage 204 arranged along the axial direction of the shell 20, which is used to selectively communicate with the exhaust cavity. For example, when the exhaust cavity appears "lack of air", the exhaust passage 204 communicates with the exhaust cavity, so that the fluid in the exhaust cavity is discharged through the exhaust passage 204 to the exhaust port of the compressor; when the exhaust cavity does not appear "lack of air", the exhaust passage 204 is disconnected with the exhaust port of the compressor, so that the air flow in the exhaust cavity is communicated to the next stage of the compression unit. In other embodiments, the peripheral wall of the shell 20 is provided with a suction passage 203 arranged along the axial direction of the shell 20, which is used to selectively communicate with the exhaust cavity. For example, when the exhaust cavity appears "lack of air", the suction passage 203 communicates with the exhaust cavity, so that the fluid of the suction port of the compressor is communicated to the exhaust cavity through the suction passage 203; when the exhaust cavity does not appear "lack of air", the suction passage 203 is disconnected with the exhaust cavity, so that the air flow in the exhaust cavity is communicated to the next stage of the compression unit.

[0071] The arrangement of the plurality of compression units in the present application includes but is not limited to the following embodiments.

[0072] In the embodiment, as shown in FIG. 1, the plurality of compression units include a first compression unit 10a and a second compression unit 10b, which are connected in series. During the operation of the compressor 100, the fluid enters the first compression unit 10a through the suction port of the first compression unit 10a, is compressed and driven by the first compression unit 10a, and is then sent out from the exhaust port of the first compression unit 10a and sent to the first exhaust cavity 205. The fluid entering the first exhaust cavity 205 is drawn into the second compression unit 10b by the suction of the suction port of the second compression unit 10b, is compressed and driven by the second compression unit 10b, and is then sent out from the exhaust port of the second compression unit 10b. Thus, two-stage compression is used to increase the large pressure ratio of the compressor 100, effectively improve the performance of the compressor 100, meet the working condition requirements of the large pressure ratio, and facilitate the adaptation of the compressor 100 to different working scenarios.

[0073] The first exhaust cavity 205 is provided between the first compression unit 10a and the second compression unit 10b, and the first exhaust cavity 205 communicates the exhaust port of the first compression unit 10a and the suction port of the second compression unit 10b.

[0074] The compressor includes a first one-way suction assembly 211, and the first exhaust cavity 205 is selectively communicated with the suction port of the compressor through the first one-way suction assembly 211. When the first exhaust cavity 205 is starved, the gas flow enters the suction passage 203 through the suction port 201 of the suction passage 203, and then enters the first exhaust cavity 205 through the first one-way suction assembly 211, thereby achieving the air supply of the first exhaust cavity 205. The first one-way suction assembly 211 can be arranged in a one-way communication form from the suction port of the compressor to the first exhaust cavity 205, that is, the fluid in the suction port of the compressor can enter the first exhaust cavity 205 through the first one-way suction assembly 211, but the fluid in the first exhaust cavity 205 is difficult (or unable) to enter the suction port of the compressor through the first one-way suction assembly 211.

[0075] The compressor includes a first one-way exhaust assembly 212, and the first exhaust cavity 205 is selectively communicated with the exhaust port of the compressor through the first one-way exhaust assembly 212. When the first exhaust cavity 205 is choked, the gas flow enters the exhaust passage 204 through the first exhaust cavity 205 and the first one-way exhaust assembly 212, and is then sent out through the exhaust port 202 of the exhaust passage 204, thereby achieving the air release of the first exhaust cavity 205. The first one-way suction assembly 211 can be arranged in a one-way communication form from the first exhaust cavity 205 to the exhaust port of the compressor, that is, the fluid in the first exhaust cavity 205 can enter the exhaust port of the compressor through the first one-way suction assembly 211, but the fluid in the exhaust port of the compressor is difficult (or unable) to enter the first exhaust cavity 205 through the first one-way exhaust assembly 212.

[0076] In the second embodiment, as shown in FIG. 1, different from the foregoing embodiments, the plurality of compression units further comprises a third compression unit 10c, and the first compression unit 10a, the second compression unit 10b and the third compression unit 10c are connected in series. During the operation of the compressor 100, the fluid enters the first compression unit 10a through the suction port of the first compression unit 10a, is sent out from the exhaust port of the first compression unit 10a after being compressed and driven by the first compression unit 10a, and is sent to the first exhaust cavity 205; the fluid entering the first exhaust cavity 205 is sucked into the second compression unit 10b by the suction force of the suction port of the second compression unit 10b, is sent out from the exhaust port of the second compression unit 10b after being compressed and driven by the second compression unit 10b, enters the second exhaust cavity 206, and is sucked into the third compression unit 10c by the suction force of the suction port of the third compression unit 10c, is sent out from the exhaust port of the third compression unit 10c after being compressed and driven by the third compression unit 10c. Thus, the three-stage compression is used to improve the large pressure ratio of the compressor 100, effectively improve the performance of the compressor 100, meet the working condition requirements of the large pressure ratio, and facilitate the adaptation of the compressor 100 to different working scenes.

[0077] The second exhaust cavity 206 is arranged between the second compression unit 10b and the third compression unit 10c, and the second exhaust cavity 206 communicates the exhaust port of the second compression unit 10b and the suction port of the third compression unit 10c.

[0078] In some embodiments, the compressor comprises a second one-way suction assembly 221, and the second exhaust cavity 206 is selectively communicated with the suction port of the compressor through the second one-way suction assembly 221. When the second exhaust cavity 206 is out of gas, the gas flow will enter the suction passage 203 through the suction port 201 of the suction passage 203, and be sent to the second exhaust cavity 206 through the second one-way suction assembly 221 to realize the gas supplement of the second exhaust cavity 206. The second one-way suction assembly 221 can be arranged in a one-way communication form from the suction port of the compressor to the second exhaust cavity 206, that is, the fluid of the suction port of the compressor can enter the second exhaust cavity 206 through the second one-way suction assembly 221, and the fluid in the second exhaust cavity 206 is difficult (or unable) to enter the suction port of the compressor through the second one-way suction assembly 221.

[0079] The compressor comprises a second one-way exhaust assembly 222, and the second exhaust cavity 206 is selectively communicated with the exhaust port of the compressor through the second one-way exhaust assembly 222. When the second exhaust cavity 206 is starved, the gas flow will be sent to the exhaust passage 204 through the second one-way exhaust assembly 222 from the second exhaust cavity 206, and then be sent out through the exhaust port 202 of the exhaust passage 204, so as to release the gas in the second exhaust cavity 206. The second one-way suction assembly 221 can be arranged in a one-way communication form from the second exhaust cavity 206 to the exhaust port of the compressor, that is, the fluid in the second exhaust cavity 206 can enter the exhaust port of the compressor through the second one-way suction assembly 221, but the fluid in the exhaust port of the compressor is difficult (or unable) to enter the second exhaust cavity 206 through the second one-way exhaust assembly 222.

[0080] In the third embodiment, a plurality of compression units are connected in series to form a multi-stage compression structure. The volume ratio of the compressor 100 as a whole is increased, the compression ratio of the actual exhaust pressure to the suction pressure is improved, and the performance of the compressor 100 is optimized.

[0081] For example, as shown in FIG. 1, a plurality of compression units including a first compression unit 10a, a second compression unit 10b, and a third compression unit 10c are provided in a three-stage compression structure. The compressor 100 can also comprise a crankshaft 30 that transmits torque to the first compression unit 10a, the second compression unit 10b, and the third compression unit 10c. Optionally, at least one of the three sets of compression units can be arranged in a scroll compression structure. Of course, the compression units in the present application can also be other forms of compression units.

[0082] The first compression unit 10a and the second compression unit 10b are provided with a first exhaust cavity 205, a first one-way exhaust assembly 212, and a first one-way suction assembly 211, and the second compression unit 10b and the third compression unit 10c are provided with a second exhaust cavity 206, a second one-way exhaust assembly 222, and a second one-way suction assembly 221. In addition, the third compression unit 10c can include a third exhaust cavity and an exhaust opening. The first exhaust cavity 205 and the second exhaust cavity 206 are one-way communicated with the exhaust passage 204 through the one-way exhaust assembly; the suction passage 203 is communicated with the first exhaust cavity 205 and the second exhaust cavity 206 through the one-way suction assembly. The first compression unit 10a, the second compression unit 10b, and the third compression unit 10c are in a series connection relationship, so as to increase the volume ratio of the compressor 100 as a whole, and improve the compression ratio of the actual exhaust pressure to the suction pressure.

[0083] In addition, the number of compression units in the present application is not necessarily three, and can be greater than or equal to two, for example, four compression units, five compression units, six compression units, etc.

[0084] In addition, the compression structure of each stage can have a certain phase difference in the corner design, which can offset the gas force generated by the compression structure of different stages to a certain extent.

[0085] Optionally, the displacement of the compression unit at the lower stage is less than or equal to the displacement of the compression unit at the upper stage. Thus, the multi-stage compression unit can stably compress the fluid, improve the stability of the operation of the compressor 100, and achieve a greater compression ratio. The multi-stage compression structure can increase the volume ratio of the scroll compressor 100, thereby increasing the compression ratio of the compressor 100 and enhancing the adaptability of the compressor 100 to large compression ratio conditions.

[0086] In addition, the series connection of the plurality of compression units described above is only some implementation manners of the present application, and is not a limitation on the protection scope of the present application.

[0087] In combination with FIGS. 2 to 4, the compression unit in the present application can be a scroll compression structure. In some embodiments, as shown in FIG. 4, the compression unit 10 includes a static scroll 101, a dynamic scroll 102, and an anti-self-rotation structure (not shown in the figure), the anti-self-rotation structure is relatively stationary with the static scroll 101, one of the dynamic scroll 102 and the anti-self-rotation structure is provided with at least one anti-self-rotation ring 1021, and the other is provided with a positioning part, which is pivotally positioned around a fixed radius. Optionally, the back of the bottom plate of the dynamic scroll is processed with a plurality of anti-self-rotation rings, which can realize the anti-self-rotation function in cooperation with a plurality of pins fixed at other positions.

[0088] In addition, as shown in FIGS. 2 and 3, the static scroll 101 is provided with an exhaust hole 1002 and an exhaust structure 1006, which can include a reed valve piece 10061, a lift limiter 10062, and a fastener 10063. The reed valve piece can only be opened in one direction, and the lift is limited by the lift limiter. The above structure is one possible form of the exhaust structure.

[0089] The compressor 100 of the present application can include a driving structure, which can be used to drive the plurality of compression units. The plurality of compression units in the present application can be driven separately or in a linkage form, for example, the plurality of compression units are driven by the same crankshaft 30. Thus, the driving and control of the compressor 100 can be simplified, and the failure rate and control cost can be reduced.

[0090] The compression unit in the present application can be provided as a scroll compression structure, which can fully utilize the characteristics of the scroll compression structure, facilitate the formation of a multi-stage compression structure, and facilitate better control of the operation of the compressor 100. The implementation manners include but are not limited to the following.

[0091] In the first embodiment, the at least two compression units have a phase difference, so that the gas forces of the multiple compression units or the torques generated by the gas forces can be offset, and the stability of the compressor 100 is improved. In the first embodiment, the compression units are configured as scroll compression structures, and the rotation angles of the static scrolls of the at least two compression units have a phase difference. The rotation angles of the dynamic scrolls of each group are offset by a certain angle, so that the gas torque pulsation is reduced, and the noise and vibration levels of the compressor 100 are reduced.

[0092] In the second embodiment, the multiple compression units of the compressor 100 can include a first compression unit 10a, which is configured as a scroll compression structure. The multiple compression units of the compressor 100 can include a second compression unit 10b, which is configured as a scroll compression structure. The multiple compression units of the compressor 100 can include a third compression unit 10c, which is configured as a scroll compression structure.

[0093] In the third embodiment, at least one of the multiple compression units is configured as a multi-tooth scroll compression structure. For example, the first compression unit 10a is configured as a multi-tooth scroll compression structure. The second compression unit 10b can be configured as a multi-tooth scroll compression structure. The third compression unit 10c can be configured as a multi-tooth scroll compression structure.

[0094] In the fourth embodiment, at least one of the multiple compression units is configured as a single-tooth scroll compression structure.

[0095] In the fifth embodiment, the compressor unit further includes a crankshaft 30. The multiple compression units are distributed along the crankshaft 30 and are drivingly connected to the crankshaft 30. The crankshaft 30 has a driving end and a free end. The driving end is used to connect a driving member. The compression unit connected to the free end is configured as a single-tooth scroll compression structure, and the other compression units are configured as multi-tooth scroll compression structures. The multi-tooth scroll compression structure is convenient for connecting the crankshaft 30. For the compression unit located at the end of the crankshaft 30, the end of the crankshaft 30 can be directly connected to the corresponding compression unit, and the through connection mode can not be used, so that the stability of the compressor 100 is effectively improved.

[0096] In the present application, the multi-tooth scroll structure is used. Compared with the traditional positive displacement compressor, the multi-tooth scroll structure has the advantages of fewer moving parts, simple assembly, low vibration and noise, small overall structure size, and smooth energy conversion process.

[0097] The multi-tooth scroll compression structure of the compressor 100 will be described below with reference to the accompanying drawings.

[0098] As shown in FIGS. 5-7, the compression unit 10 according to the embodiments of the present application includes a first scroll plate 11 and a second scroll plate 12. The first scroll plate 11 includes a first base plate 111 and a plurality of first scroll teeth 112 arranged on the first base plate 111. The second scroll plate 12 includes a second base plate 121 and a plurality of second scroll teeth 122 arranged on the second base plate 121. The plurality of first scroll teeth 112 forms a plurality of compression channels 1001. The first base plate 111 or the second base plate 121 is provided with a plurality of exhaust holes 1002, each of which is in communication with one of the plurality of compression channels 1001. The plurality of second scroll teeth 122 is arranged to cooperate with the plurality of first scroll teeth 112 to drive the fluid in the corresponding compression channel 1001 to the corresponding exhaust hole 1002.

[0099] The plurality of first scroll teeth 112 and the plurality of second scroll teeth 122 are arranged to form a scroll compression structure and drive the fluid in the corresponding compression channel 1001 to the corresponding exhaust hole 1002, respectively. The compression of the fluid in the plurality of compression channels 1001 is relatively independent, which can reduce the mutual influence of the compression of the fluid in the plurality of compression channels 1001 and reduce the clearance volume of the compression unit 10 and improve the performance of the compression unit 10. In addition, compared with the scheme of discharging the fluid in the plurality of compression channels 1001 through the same opening, the present application can avoid or reduce the influence of the turbulence of the fluid gathered in the same opening on the compression performance.

[0100] The number of the first scroll teeth 112 can be two, three, four, six, etc. The number of the second scroll teeth 122 can be the same as the number of the first scroll teeth 112. The number of the compression channels 1001 can be the same as the number of the first scroll teeth 112. The compression unit 10 of the present application includes but is not limited to the following examples.

[0101] Example 1: The first scroll plate 11 is a static scroll plate, and the number of the first scroll teeth 112 is two. Two compression channels 1001 are formed between the two first scroll teeth 112, which are a first channel and a second channel, respectively. The second scroll plate 12 is a dynamic scroll plate, and the number of the second scroll teeth 122 is two. One of the second scroll teeth 122 is arranged in the first channel and cooperates with the two adjacent first scroll teeth 112. When the second scroll plate 12 moves around the axis of the first scroll plate 11 at a fixed revolution radius, the fluid in the first channel is driven to the corresponding exhaust hole 1002. The other second scroll tooth 122 is arranged in the second channel and cooperates with the two adjacent first scroll teeth 112. When the second scroll plate 12 moves around the axis of the first scroll plate 11 at a fixed revolution radius, the fluid in the second channel is driven to the corresponding exhaust hole 1002.

[0102] In the example 2, the first scroll plate 11 is a static scroll plate, and the number of the first scroll teeth 112 is three. The three first scroll teeth 112 are configured to form three compression channels 1001, which are respectively a first channel, a second channel and a third channel. The second scroll plate 12 is a dynamic scroll plate, and the number of the second scroll teeth 122 is three. The first second scroll tooth 122 is arranged in the first channel and cooperates with the adjacent two first scroll teeth 112. When the second scroll plate 12 moves around the axis of the first scroll plate 11 at a fixed revolution radius, the first second scroll tooth 122 drives the fluid in the first channel to flow to the corresponding exhaust hole 1002. The second second scroll tooth 122 is arranged in the second channel and cooperates with the adjacent two first scroll teeth 112. When the second scroll plate 12 moves around the axis of the first scroll plate 11 at a fixed revolution radius, the second second scroll tooth 122 drives the fluid in the second channel to flow to the corresponding exhaust hole 1002. The third second scroll tooth 122 is arranged in the third channel and cooperates with the adjacent two first scroll teeth 112. When the second scroll plate 12 moves around the axis of the first scroll plate 11 at a fixed revolution radius, the third second scroll tooth 122 drives the fluid in the third channel to flow to the corresponding exhaust hole 1002.

[0103] In some embodiments, as shown in FIG. 7 and FIG. 8, the inner end of the compression channel 1001 is closed, and the exhaust hole 1002 is connected to the inner end of the corresponding compression channel 1001. During the cooperation of the first scroll plate 11 and the second scroll plate 12 to compress the fluid, the fluid will be driven to flow to the inner end of the compression channel 1001. When the inner end of the compression channel 1001 is closed, the fluid will be discharged through the corresponding exhaust hole 1002. The plurality of compression channels 1001 can be separated, and each compression channel 1001 can be independently discharged through the corresponding exhaust hole 1002, so as to reduce the influence between the plurality of compression channels 1001. The plurality of first scroll teeth 112 can be distributed along the circumference of the first bottom plate 111, and the inner end of the compression channel 1001 formed between the adjacent first scroll teeth 112 is closed.

[0104] In addition, as shown in FIG. 8 and FIG. 9, the first scroll plate 11 further comprises a convex part 1003 arranged on the first bottom plate 111. The plurality of first scroll teeth 112 are connected to the convex part 1003 and arranged around the convex part 1003 to form an integrated multi-tooth structure. The inner end of the compression channel 1001 formed between the adjacent first scroll teeth 112 can be closed by the convex part 1003, and the connection of the convex part 1003 can improve the structural strength of the plurality of first scroll teeth 112, the first scroll teeth 112 and the first bottom plate 111.

[0105] In some embodiments, as shown in FIG. 10 and FIG. 11, a plurality of second scroll teeth 122 are distributed along the circumference of the second bottom plate 121, and adjacent second scroll teeth 122 are spaced apart to form a discrete multi-tooth structure. In order to facilitate the plurality of second scroll teeth 122 to correspondingly match the plurality of first scroll teeth 112 respectively, so as to compress the fluid.

[0106] In some embodiments, as shown in FIG. 13, the first scroll plate 11 is provided with a first central through hole 1004, and the plurality of first scroll teeth 112 are distributed around the first central through hole 1004; and / or, as shown in FIG. 14, the second scroll plate 12 is provided with a second central through hole 1005, and the plurality of second scroll teeth 122 are distributed around the second central through hole 1005. When the compression unit 10 is connected to the crankshaft, the crankshaft can be inserted into the first central through hole 1004 and the second central through hole 1005, so as to drive the relative translational motion of the first scroll plate 11 and the second scroll plate 12 when the crankshaft rotates. In this way, the compression unit 10 can be connected by the crankshaft, so that a plurality of compression units 10 are connected by the crankshaft transmission.

[0107] Of course, the first scroll plate 11 can also not be provided with the first central through hole 1004, and the end of the crankshaft is connected to the first scroll plate 11; or, the second scroll plate 12 can also not be provided with the second central through hole 1005, and the end of the crankshaft is connected to the second scroll plate 12.

[0108] In some embodiments, as shown in FIG. 9, the first scroll tooth 112 includes a first tooth head correction segment 1121, a first inner involute segment 1122, a first tooth tail connecting segment 1123, and a first outer involute segment 1124. The first tooth head correction segment 1121 of one of the adjacent first scroll teeth 112 is connected to the first outer involute segment 1124 of the other, for closing the inner end of the compression channel 1001 formed between the adjacent first scroll teeth 112. The stable matching of the first scroll tooth 112 and the second scroll tooth 122 can be achieved, the clearance volume of the tooth head part is eliminated, and the performance of the compressor is improved.

[0109] In addition, the first tooth head correction segment 1121 is configured as a circular arc, a spline curve, a B-spline curve or an elliptical arc; and / or, the first inner involute segment 1122 is configured as a circular involute, a triangular involute, a straight line involute or an algebraic spiral; and / or, the first outer involute segment 1124 is configured as a circular involute, a triangular involute, a straight line involute or an algebraic spiral; and / or, the first tooth head correction segment 1121, the first inner involute segment 1122 and the first outer involute segment 1124 are parts that need to cooperate with the corresponding curves of the second scroll plate 12, and thus must be smooth, and optionally, the first tooth head correction segment 1121, the first inner involute segment 1122 and the first outer involute segment 1124 are configured as smooth curves; and / or, the first tooth tail connecting segment 1123 is configured as a circular arc, a straight line or any other type of line segment, and since it does not need to participate in cooperation, there is no limitation on its form; and / or, the projection area of the plurality of first scroll teeth 112 on the first reference plane in which the profile of the first bottom plate 111 is located is A1, and the profile area of the first bottom plate 111 is A2, wherein the ratio of A1 to A2 is greater than 1%. The stable cooperation of the first scroll teeth 112 and the second scroll teeth 122 can be facilitated, and the structural stability of the compression unit 10 is improved. In addition, the structural strength of the first scroll teeth 112 can be improved while ensuring the displacement of the compressor.

[0110] In some embodiments, as shown in FIG. 10, the second scroll tooth 122 includes a second tooth head correction segment 1221, a second inner involute segment 1222, a second tooth tail connecting segment 1223 and a second outer involute segment 1224, and the second tooth head correction segment 1221 is connected with the second outer involute segment 1224. The stable cooperation of the first scroll tooth 112 and the second scroll tooth 122 can be achieved, and the clearance volume of the tooth head part is eliminated, and the performance of the compressor is improved.

[0111] In addition, the second tooth head correction segment 1221, the second inner involute segment 1222 and the second outer involute segment 1224 are parts that need to cooperate with the corresponding curves of the first scroll plate 11, and thus must be smooth. The second tooth head correction segment 1221 is configured as a circular arc, a spline curve, a B-spline curve or an elliptical arc; and / or, the second inner involute segment 1222 is configured as a circular involute, a triangular involute, a straight line involute or an algebraic spiral; and / or, the second outer involute segment 1224 is configured as a circular involute, a triangular involute, a straight line involute or an algebraic spiral; and / or, the second tooth head correction segment 1221, the second inner involute segment 1222 and the second outer involute segment 1224 are configured as smooth curves. The second tooth tail connecting segment 1223 is configured as a circular arc, a straight line or any other type of line segment, and since it does not need to participate in cooperation, there is no limitation on its form.

[0112] Optionally, taking the profile of the second bottom plate 121 as the second reference plane, the projection area of the plurality of second spiral teeth 122 on the second reference plane is A3, and the profile area of the second bottom plate 121 is A4, wherein the ratio of A3 to A4 is greater than 1%. The first spiral teeth 112 and the second spiral teeth 122 can be stably matched, and the structural stability of the compression unit 10 can be improved. In addition, the structural strength of the first spiral teeth 112 can be improved while ensuring the displacement of the compressor.

[0113] In addition, in combination with FIGS. 7, 15 to 18, the cooperation of at least two of the plurality of first spiral teeth 112 and the corresponding second spiral teeth 122 has a phase difference. Through this setting, when the at least two first spiral teeth 112 compress the fluid, the corresponding exhaust holes 1002 do not simultaneously exhaust, so that the fluid in the plurality of compression channels 1001 is sequentially discharged from the compression unit 10, and problems such as vibration caused by the simultaneous exhaust of the plurality of exhaust holes 1002 and the simultaneous stop of the exhaust can be avoided.

[0114] Further, the cooperation of the plurality of first spiral teeth 112 and the corresponding second spiral teeth 122 has a phase difference, and the phase difference α of the cooperation of the first spiral teeth 112 and the corresponding second spiral teeth 122 adjacent in time sequence satisfies α = 360° / i, where i is the number of the first spiral teeth 112.

[0115] For example, the number of the first spiral teeth 112 is 2, and the phase difference of the cooperation of the first spiral teeth 112 adjacent in time sequence and the corresponding second spiral teeth 122 is 180°, that is, when the compression flow passage corresponding to one first spiral tooth 112 is in the exhaust stage, the compression flow passage corresponding to another first spiral tooth 112 is in the suction stage; for example, the number of the first spiral teeth 112 is 3, and the phase difference of the cooperation of the first spiral teeth 112 adjacent in time sequence and the corresponding second spiral teeth 122 is 120°, that is, when the compression flow passage corresponding to one first spiral tooth 112 is in the suction stage, the compression flow passage corresponding to another first spiral tooth 112 is in the compression stage, and the compression flow passage corresponding to another first spiral tooth 112 is in the exhaust stage; for example, the number of the first spiral teeth 112 is 4, and the phase difference of the cooperation of the first spiral teeth 112 adjacent in time sequence and the corresponding second spiral teeth 122 is 90°. Of course, the number of the first spiral teeth 112 in the present application can also be 5, 6, etc., which will not be described herein.

[0116] In the present application, one of the first scroll plate 11 and the second scroll plate 12 can be a static scroll plate, and the other can be a dynamic scroll plate. The dynamic scroll plate can move along the axis of the static scroll plate at a fixed revolution radius, so as to realize compression of the fluid. The cooperation of the first scroll plate 11 and the second scroll plate 12 in the present application includes but is not limited to the following embodiments.

[0117] In one embodiment, in combination with FIGS. 8-12, the first scroll plate 11 is configured as a stationary scroll plate, and the second scroll plate 12 is configured as an orbiting scroll plate. The second scroll plate 12 orbits around the axis of the first scroll plate 11 at a fixed orbiting radius.

[0118] For example, the first scroll plate 11 includes a first base plate 111 and a plurality of first scroll teeth 112. The plurality of first scroll teeth 112 converge at the center of the first base plate 111, forming an integrated multi-tooth structure. In addition, the plurality of first scroll teeth 112 divide the space of the first base plate 111 into a plurality of independent compression channels 1001. Each compression channel 1001 is provided with an exhaust hole 1002 near the center of the first scroll plate 11. For example, the number of first scroll teeth 112 can be four, and the four first scroll teeth 112 will divide the space into four independent compression channels 1001, each provided with an exhaust hole 1002 near the center of the scroll plate.

[0119] The second scroll plate 12 includes a second base plate 121 and a plurality of second scroll teeth 122. The back of the second scroll plate 12 is generally provided with a bearing seat for mounting a bearing. The plurality of second scroll teeth 122 are separated from each other without intersecting. The number of second scroll teeth 122 can be four.

[0120] The assembly process of the first scroll plate 11 and the second scroll plate 12 is shown in FIGS. 15-18. The second scroll plate 12 orbits around the center of the first scroll plate 11 at a fixed orbiting radius (counterclockwise on the paper). The plurality of second scroll teeth 122 of the second scroll plate 12 form a plurality of assembly points with the plurality of first scroll teeth 112 of the first scroll plate 11, respectively. When the assembly structure of the plurality of first scroll teeth 112 and the plurality of second scroll teeth 122 is completely the same, the displacement of each compression channel 1001 is 1 / N (N is the number of first scroll teeth 112 or second scroll teeth 122) of the total displacement of the compression unit 10. The plurality of assembly points divide the plurality of compression channels 1001 into a plurality of crescent cavities. As the orbiting continues, the assembly points move, the volume of the crescent cavities gradually decreases, and the refrigerant is compressed and the refrigerant is worked. As the volume of the refrigerant is compressed, its position gradually moves from the edge of the compression unit 10 to the center of the compression unit 10, approaching the exhaust hole 1002.

[0121] As shown in FIG. 13 and FIG. 14, in another example, the first scroll 11 is a one-piece multi-tooth static scroll and the second scroll 12 is a split multi-tooth dynamic scroll. The split multi-tooth dynamic scroll includes a plurality of second scroll teeth 122, a second bottom plate 121, and a second bearing hole. The one-piece multi-tooth static scroll includes a plurality of first scroll teeth 112, a plurality of exhaust holes 1002, and a first bottom plate 111. The plurality of second scroll teeth 122 divide the compression space of the scroll into a plurality of compression passages 1001. The one-piece multi-tooth static scroll further includes a first bearing hole. The above structure provides an additional support point for the crankshaft, i.e. the first bearing hole of the one-piece multi-tooth static scroll supports the crankshaft, and the large rigidity of the one-piece multi-tooth static scroll further improves the stability of the shafting. In addition, the crankshaft can pass through the scroll assembly composed of the split multi-tooth dynamic scroll and the one-piece multi-tooth static scroll, providing a structural basis for driving a plurality of similar scroll assemblies with a single crankshaft.

[0122] In another embodiment, as shown in FIG. 19 to FIG. 23, the first scroll 11 is a dynamic scroll and the second scroll 12 is a static scroll. The first scroll 11 moves in a fixed orbit around the axis of the second scroll 12.

[0123] For example, the first scroll 11 includes a first bottom plate 111 and a plurality of first scroll teeth 112. The plurality of first scroll teeth 112 converge at the center of the first scroll 11, forming a one-piece multi-scroll tooth structure. The back of the first scroll 11 is provided with a bearing seat for bearing installation.

[0124] The second scroll 12 includes a second bottom plate 121 and a plurality of second scroll teeth 122, and further includes a plurality of exhaust holes 1002. The plurality of second scroll teeth 122 divide the space of the second scroll 12 into a plurality of compression passages 1001.

[0125] The matching process of the first scroll 11 and the second scroll 12 can refer to the process of FIG. 15 to FIG. 18. The compression unit 10 of the present application will significantly reduce the vibration and noise of the compressor.

[0126] In some embodiments, the plurality of exhaust holes 1002 are provided in the static scroll for the exhaust of the plurality of compression passages 1001. The compression unit 10 further includes a crankshaft, which includes a main journal and a connecting rod journal. The main journal is rotationally connected to the static scroll, and the connecting rod journal is rotationally connected to the dynamic scroll for driving the dynamic scroll to move in a fixed orbit around the axis of the static scroll. The static scroll is provided with a central through hole, and the plurality of exhaust holes 1002 are distributed around the central through hole. The central through hole can be used for the crankshaft to pass through, and the static scroll can be used to support the crankshaft. At the same time, the exhaust holes 1002 are arranged around the central through hole to facilitate the exhaust of the compression unit 10, and to avoid the influence of the crankshaft passing through the central through hole on the exhaust of the compression unit 10.

[0127] In some embodiments of the present application, as shown in FIG. 24, taking R134a refrigerant as an example, assuming that the displacement of the compressor is 34 cc, the displacement of each compression channel 1001 is 8.5 cc, the suction pressure is 0.3 MPa, the discharge pressure is 1.5 MPa, the suction superheat is 10 K, and the compressor speed is 3000 rpm, then the gas torque pulsation value is 0.06 N*m, and the traditional single-tooth scroll compressor is 1.26 N*m, with a pulsation value decrease of 95%. The significant improvement of the gas torque pulsation value and the offset of the gas force will effectively improve the vibration and noise problems of the compressor.

[0128] In some other embodiments of the present application, as shown in FIG. 25, taking R134a refrigerant as an example, assuming that the displacement of the compressor is 34 cc, the displacement of each compression channel 1001 is 8.5 cc, the suction pressure is 0.3 MPa, the discharge pressure is 1.5 MPa, the suction superheat is 10 K, and the compressor speed is 3000 rpm, then the discharge mass flow pulsation value is 0.010 kg / s, and the traditional single-tooth scroll compressor is 0.056 kg / s, with a pulsation value decrease of 82%.

[0129] In addition, in some embodiments, the plurality of discharge holes 1002 are arranged around the axis of the static scroll.

[0130] In combination with the foregoing, in some embodiments of the present application, the tooth head region of the plurality of scroll teeth on the static scroll is designed in a unitary structure, and the corresponding dynamic scroll is designed in a discrete multi-scroll tooth structure, which can reduce the clearance volume and improve the performance of the compressor.

[0131] In addition, in the present application, the first scroll 11 constitutes a plurality of compression channels 1001, and each compression channel 1001 is equipped with a discharge hole 1002 and a discharge structure. Each compression channel 1001 constitutes an independent compression process, which will effectively reduce the gas discharge mass flow pulsation and the gas torque pulsation, and reduce the vibration of the compressor.

[0132] Of course, in some other embodiments of the present application, the tooth head region of the dynamic scroll is designed in a unitary structure, and the static scroll is designed in a discrete multi-scroll tooth structure, which can also improve the performance of the compressor. In the present application, the tooth head region of the plurality of scroll teeth on the dynamic scroll can also be designed in a unitary structure, and the corresponding static scroll is designed in a discrete multi-scroll tooth structure, which can reduce the clearance volume and improve the performance of the compressor. The tooth head region of the plurality of scroll teeth on the dynamic scroll is designed in a unitary structure, and the corresponding static scroll is designed in a discrete multi-scroll tooth structure, which constitutes a plurality of compression channels 1001, and each compression channel 1001 is equipped with a discharge hole 1002 and a discharge structure. Each compression channel 1001 constitutes an independent compression process, which will effectively reduce the gas discharge mass flow pulsation and the gas torque pulsation, and reduce the vibration of the compressor.

[0133] In addition, in the above description, the number of the first scroll teeth 112 is four and the number of the second scroll teeth 122 is four, which is not a limitation to the scope of protection of the present application. The number of the first scroll teeth 112 in the present application is not necessarily four, and can be greater than or equal to two. It is also emphasized that the distribution of the plurality of first scroll teeth 112 along the circumference of the first scroll plate 11 can be uniform or non-uniform. In addition, the tooth width and length of the plurality of first scroll teeth 112 and the plurality of second scroll teeth 122 are not necessarily the same.

[0134] In the present application, the scroll tooth refers to a structure enveloped by a scroll profile, which includes a tooth head correction curve, an involute, and a tooth tail connection curve. The clearance volume in the present application refers to the volume in the compression structure that does not participate in compression, which is the clearance volume. The clearance volume will reduce the isentropic efficiency and volumetric efficiency of the compressor, thus reducing the performance of the compressor.

[0135] The single-tooth scroll compression structure of the embodiments of the present application is described below with reference to the accompanying drawings.

[0136] As shown in FIGS. 26 and 27, in some embodiments, the single-tooth scroll compression structure includes a third scroll plate 13 and a fourth scroll plate 14. The third scroll plate 13 includes a third bottom plate 131 and a third scroll tooth 132 provided on the third bottom plate 131. The fourth scroll plate 14 includes a fourth bottom plate 141 and a fourth scroll tooth 142 provided on the fourth bottom plate 141. The fourth scroll tooth 142 cooperates with the third scroll tooth 141. One of the third scroll plate 13 and the fourth scroll plate 14 is a dynamic scroll and the other is a static scroll.

[0137] The thermal management system according to the embodiments of the present application includes the aforementioned compressor. The vehicle according to the embodiments of the present application includes the aforementioned compressor or the aforementioned thermal management system. The thermal management system and the vehicle provided in the present application are provided with a plurality of compression units, and the plurality of compression units are drivingly connected, so that the plurality of compression units can be used to drive and compress fluid, thereby improving the compression efficiency or compression ratio of the fluid.

[0138] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0139] In addition, the terms "first", "second", etc. are used only for the purpose of description and do not imply or imply relative importance or imply the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0140] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0141] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0142] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0143] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A compressor (100), wherein, Comprise: A shell (20); A plurality of compression units arranged in the shell (20), the compression units being used for compressing fluid, the plurality of compression units being drivingly connected.

2. The compressor (100) of claim 1, wherein, The plurality of compression units are arranged along the axis of the shell (20), and an exhaust cavity is arranged between adjacent compression units, the exhaust cavity being communicated with the exhaust port of one compression unit and the suction port of another compression unit.

3. The compressor (100) of claim 2, wherein, The compressor (100) further comprises a one-way suction assembly, and the exhaust cavity is selectively communicated with the suction port of the compressor through the one-way suction assembly. And / or, the compressor (100) further comprises a one-way exhaust assembly, and the exhaust cavity is selectively communicated with the exhaust port of the compressor through the one-way exhaust assembly.

4. The compressor (100) of claim 2, wherein, The peripheral wall of the shell (20) is provided with an exhaust passage (204) arranged along the axial direction of the shell (20) for selectively communicating the exhaust cavity; and / or, the peripheral wall of the shell (20) is provided with a suction passage (203) arranged along the axial direction of the shell (20) for selectively communicating the exhaust cavity.

5. The compressor (100) according to any one of claims 1-4, wherein, The plurality of compression units comprises a first compression unit (10a) and a second compression unit (10b), and the first compression unit (10a) and the second compression unit (10b) are connected in series.

6. The compressor (100) of claim 5, wherein, A first exhaust cavity (205) is arranged between the first compression unit (10a) and the second compression unit (10b), and the first exhaust cavity (205) is communicated with the exhaust port of the first compression unit (10a) and the suction port of the second compression unit (10b).

7. The compressor (100) of claim 6, wherein, The compressor comprises a first one-way suction assembly (211), and the first exhaust cavity (205) is selectively communicated with the suction port of the compressor through the first one-way suction assembly (211). And / or, the compressor comprises a first one-way exhaust assembly (212), and the first exhaust cavity (205) is selectively communicated with the exhaust port of the compressor through the first one-way exhaust assembly (212).

8. The compressor (100) of claim 5, wherein, The plurality of compression units further comprises a third compression unit (10c), and the first compression unit (10a), the second compression unit (10b) and the third compression unit (10c) are connected in series.

9. The compressor (100) of claim 8, wherein, A second exhaust cavity (206) is arranged between the second compression unit (10b) and the third compression unit (10c), and the second exhaust cavity (206) is communicated with the exhaust port of the second compression unit (10b) and the suction port of the third compression unit (10c).

10. The compressor (100) of claim 9, wherein, The compressor comprises a second one-way suction assembly (221), and the second exhaust cavity (206) is selectively communicated with the suction port of the compressor through the second one-way suction assembly (221). And / or, the compressor comprises a second one-way exhaust assembly (222), and the second exhaust cavity (206) is selectively communicated with the exhaust port of the compressor through the second one-way exhaust assembly (222).

11. The compressor (100) of claim 1, wherein, The plurality of compression units are connected in series to form a multi-stage compression structure.

12. The compressor (100) of claim 11, wherein, The displacement of the compression unit at the lower level is less than or equal to the displacement of the compression unit at the upper level.

13. The compressor (100) of claim 1, wherein, At least one of the plurality of compression units is configured as a multi-tooth scroll compression structure.

14. The compressor (100) of claim 13, wherein, The multi-tooth scroll compression structure comprises a first scroll plate (11) and a second scroll plate (12), the first scroll plate (11) comprises a first bottom plate (111) and a plurality of first scroll teeth (112) arranged on the first bottom plate (111), and the second scroll plate (12) comprises a second bottom plate (121) and a plurality of second scroll teeth (122) arranged on the second bottom plate (121), the plurality of first scroll teeth (112) form a plurality of compression channels (1001), the first bottom plate (111) or the second bottom plate (121) is provided with a plurality of exhaust holes (1002) respectively communicating with the plurality of compression channels (1001), and the plurality of second scroll teeth (122) are respectively arranged in the plurality of compression channels (1001) and respectively matched with the plurality of first scroll teeth (112) to drive fluid along the compression channels (1001) to the corresponding exhaust holes (1002), wherein one of the first scroll plate (11) and the second scroll plate (12) is a moving scroll and the other is a stationary scroll.

15. The compressor (100) of claim 14, wherein, The stationary scroll is provided with a first central through hole (1004), the plurality of exhaust holes (1002) are arranged on the stationary scroll and distributed around the first central through hole (1004), the moving scroll is provided with a second central through hole (1005), and the compressor (100) further comprises a crankshaft (30), the crankshaft (30) comprises a main shaft journal and a connecting rod journal, the main shaft journal is arranged through the first central through hole (1004), and the connecting rod journal is arranged through the second central through hole (1005).

16. The compressor (100) of claim 1, wherein, At least one of the plurality of compression units is configured as a single-tooth scroll compression structure.

17. The compressor (100) of claim 16, wherein, The single-tooth scroll compression structure comprises a third scroll plate and a fourth scroll plate, the third scroll plate comprises a third bottom plate and a third scroll tooth arranged on the third bottom plate, the fourth scroll plate comprises a fourth bottom plate and a fourth scroll tooth arranged on the fourth bottom plate, and the fourth scroll tooth is matched with the third scroll tooth, wherein one of the third scroll plate and the fourth scroll plate is a moving scroll and the other is a stationary scroll.

18. The compressor (100) of any of claims 1, 13-17, wherein, The compression unit further comprises a crankshaft (30), the compression units are distributed along the crankshaft (30) and are in driving connection with the crankshaft (30), the crankshaft (30) has a driving end and a free end, the driving end is used for connecting a driving member, the compression unit connected to the free end is configured as a single-tooth scroll compression structure, and the other compression units are configured as multi-tooth scroll compression structures.

19. The compressor (100) of claim 1, wherein, The plurality of compression units are driven by the same crankshaft (30); and / or, at least two of the compression units have a phase difference.

20. The compressor (100) of claim 1, wherein, The compression unit comprises a static scroll, a dynamic scroll and an anti-self-rotation structure, the anti-self-rotation structure is relatively static with the static scroll, one of the dynamic scroll and the anti-self-rotation structure is provided with at least one anti-self-ring, and the other is provided with a positioning part, the positioning part is pivotally positioned around a fixed radius on the anti-self-ring.

21. A thermal management system, wherein, A compressor (100) according to any one of claims 1-20.

22. A vehicle, wherein, A compressor (100) according to any one of claims 1-20; or a thermal management system according to claim 21.

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