CN118386791A - Compression device and vehicle - Google Patents

Abstract

The invention discloses a compression device and a vehicle, wherein the compression device comprises: a compression mechanism; and the speed change mechanism is in transmission connection with the compression mechanism. Therefore, by arranging the speed change mechanism in the compression device and the compression mechanism to be isolated from each other, abrasive particles in the speed change mechanism can be prevented from entering the compression mechanism to cause abrasion, and the mechanical life of the compression device can be prolonged.

Description

Compression device and vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a compression device and a vehicle.

Background

The hybrid electric vehicle can utilize the engine and the motor to simultaneously provide a power source for the vehicle so as to enable the vehicle to operate in different power modes. In order to ensure the normal operation of the hybrid electric vehicle, an air conditioner compression system is an indispensable device for the hybrid electric vehicle. The air conditioner compression system of the hybrid electric vehicle operates depending on a power source provided by an engine, and power output by the engine can be transmitted to an air conditioner compression mechanism of the air conditioner compression system through a transmission system of a belt pulley so as to drive the air conditioner compression mechanism to rotate.

In the prior art, a motor, a speed change mechanism and a vortex disc of an air conditioner compression mechanism are arranged in a cavity, and a refrigerant can flow through the structures and then enter an movable vortex disc, so that after a gear structure is worn for a long time, abrasive particles can enter the movable vortex disc along with the refrigerant, and the abrasion of the vortex disc is caused. And the refrigerant can be heated by the motor, so that the temperature of the refrigerant is increased, and the working efficiency of the compression mechanism is reduced.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a compression device that can improve the working efficiency and extend the mechanical life.

Another object of the invention is to propose a vehicle.

According to an embodiment of the present invention, a compression apparatus includes: a compression mechanism; a speed change mechanism; the speed change mechanism is in transmission connection with the compression mechanism and is mutually isolated.

Therefore, by arranging the speed change mechanism in the compression device and the compression mechanism to be isolated from each other, abrasive particles in the speed change mechanism can be prevented from entering the compression mechanism to cause abrasion, and the mechanical life of the compression device can be prolonged.

In some examples of the present invention, the compression device further includes a motor member in driving connection with the speed change mechanism, and the motor member, the speed change mechanism, and the compression mechanism are sequentially arranged in an axial direction of the motor member.

In some examples of the invention, the compression device further comprises an electrical control disposed on a side of the electrical machine remote from the speed change mechanism.

In some examples of the present invention, the electric control member includes an electric control housing, on which a first cooling flow channel, a second cooling flow channel, and a third cooling flow channel are provided, the first cooling flow channel, the second cooling flow channel, and the third cooling flow channel are all communicated with the heat exchanger, the first cooling flow channel extends in a radial direction of the electric control housing, the second cooling flow channel and the third cooling flow channel are located at two sides of the first cooling flow channel, respectively, and the second cooling flow channel and the third cooling flow channel each extend at least partially in a circumferential direction on the electric control housing.

In some examples of the present invention, the electric control member further includes an electric control device and a bearing, the electric motor member is provided with a motor crankshaft, one end of the motor crankshaft is rotatably connected with the bearing, the bearing and the electric control device are both disposed in the electric control housing, the first cooling flow passage is communicated with the bearing, and the second cooling flow passage and the third cooling flow passage are both communicated with the electric control device.

In some examples of the invention, the motor member includes a motor housing, and a fourth cooling flow passage and a fifth cooling flow passage are provided on a circumferential side wall of the motor housing, each of the fourth cooling flow passage and the fifth cooling flow passage being in communication with the heat exchanger, the fourth cooling flow passage and the fifth cooling flow passage being disposed opposite to each other and extending in opposite directions from each other in a circumferential direction of the motor housing.

In some examples of the present disclosure, the motor member includes a stator, a circumferential side wall of the motor housing is provided with a relief portion and a protruding portion, the protruding portion is in interference fit with the stator, the relief portion is disposed at intervals with the stator, the protruding portion is plural, the protruding portions are disposed at intervals in a circumferential direction, the relief portion is located between two adjacent protruding portions, sub-flow passages are disposed on the relief portion and the protruding portion, and the sub-flow passages on the relief portion and the protruding portion are sequentially connected in circumferential direction to form the fourth cooling flow passage and the fifth cooling flow passage.

In some examples of the present invention, the fourth cooling flow passage and the fifth cooling flow passage are each plural, the plural fourth cooling flow passages are disposed at intervals in the axial direction of the motor housing, and the plural fifth cooling flow passages are disposed at intervals in the axial direction of the motor housing.

In some examples of the present invention, a first cooling outlet is provided on the motor housing, the fourth cooling flow passage and the fifth cooling flow passage are each in communication with the first cooling outlet, a second cooling outlet is provided on the electronic control housing, the first cooling flow passage, the second cooling flow passage and the third cooling flow passage are each in communication with the second cooling outlet, and the first cooling outlet and the second cooling outlet are each in communication.

In some examples of the present invention, the speed change mechanism includes a speed change housing, a driving gear member and a planetary row, wherein the driving gear member and the planetary row are both disposed in the speed change housing and are in meshed transmission, the planetary row is in transmission connection with the electric machine member and the compression mechanism, and one of the driving gear member and the electric machine member selectively drives the planetary row to drive the compression mechanism to work.

In some examples of the invention, the planet row includes a sun gear, a planet carrier, and a ring gear, the ring gear being in mesh with the drive gear member, the planet gear being disposed on the planet carrier and being meshed between the sun gear and the ring gear.

In some examples of the invention, a sixth cooling flow passage is provided within the transmission housing, an inlet of the sixth cooling flow passage being in communication with the heat exchanger, and an outlet of the sixth cooling flow passage being in communication with the engagement of the drive gear member and the planetary rows.

In some examples of the present invention, a seventh cooling flow passage and an eighth cooling flow passage are provided in the transmission housing, the seventh cooling flow passage and the eighth cooling flow passage each have an inlet in communication with the heat exchanger, an outlet in communication with the meshing of the planetary gear and the ring gear, and an outlet in communication with the meshing of the sun gear and the planetary gear.

In some examples of the present invention, the number of the planetary gears is plural, the number of the seventh cooling flow channels and the number of the eighth cooling flow channels are plural, the outlets of the seventh cooling flow channels are in one-to-one correspondence with the meshing positions of the planetary gears and the ring gear, and the eighth cooling flow channels are in one-to-one correspondence with the meshing positions of the planetary gears and the sun gear.

In some examples of the present disclosure, the motor member includes a motor housing, a stator, a rotor, and a motor crankshaft, the stator, the rotor, and the motor crankshaft are all disposed in the motor housing, the stator is in interference fit with the motor housing, the rotor is rotatably disposed in an inner ring of the stator, the motor crankshaft is disposed through the rotor and in interference fit with the rotor, and one end of the motor crankshaft is in interference fit with the planet carrier.

In some examples of the present disclosure, the compression mechanism includes a compression housing, a fixed scroll, and an orbiting scroll, the fixed scroll and the orbiting scroll are both disposed in the compression housing, the fixed scroll is in interference fit with the compression housing, the orbiting scroll is rotatably disposed in an inner ring of the fixed scroll, the speed change mechanism further includes a driving crankshaft, one end of the driving crankshaft is in interference fit with the sun gear, and the other end of the driving crankshaft is in interference fit with the orbiting scroll.

In some examples of the invention, the drive gear member includes a drive gear and a drive shaft, the drive shaft having an interference fit with the drive gear, the drive gear being in mesh with the ring gear.

In some examples of the invention, the transmission housing and the compression housing are integrally formed as one piece.

The vehicle according to the invention comprises a compression device as described above.

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.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a compression device according to an embodiment of the present invention;

FIG. 2 is a partial perspective view of a compression device according to an embodiment of the present invention;

FIG. 3 is a partial schematic view of a transmission mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic illustration of a compression housing and a transmission housing according to further embodiments of the present invention;

FIG. 5 is a schematic illustration of a heat exchanger coupled to a compression device according to an embodiment of the present invention;

fig. 6 is a schematic view of an electrically controlled housing according to an embodiment of the invention;

FIG. 7 is a schematic view of a motor housing according to an embodiment of the invention;

FIG. 8 is a schematic diagram of another view of a motor housing according to an embodiment of the invention;

FIG. 9 is a schematic illustration of a shift housing according to an embodiment of the invention;

fig. 10 is a partial schematic view of a compression device according to an embodiment of the present invention.

Reference numerals:

100. A compression device;

10. a compression mechanism; 11. a refrigerant flow passage; 12. a compression housing; 13. a fixed scroll; 14. an orbiting scroll;

20. A speed change mechanism; 21. a variable speed housing; 211. a sixth cooling flow path; 212. a seventh cooling flow passage; 213. an eighth cooling flow passage; 214. a third cooling outlet; 22. a drive gear member; 221. a drive gear; 222. a drive shaft; 23. a planet row; 231. a sun gear; 232. a planet wheel; 233. a planet carrier; 234. a gear ring; 24. a transmission crankshaft; 25. an oil injection hole;

30. An electrical control; 31. an electric control shell; 311. a first cooling flow passage; 312. a second cooling flow path; 313. a third cooling flow path; 314. a second cooling outlet; 32. a bearing;

40. A machine element; 41. a motor crankshaft; 42. a motor housing; 421. a fourth cooling flow path; 422. a fifth cooling flow path; 423. an avoidance unit; 424. a protruding portion; 425. a sub-runner; 426. a first cooling outlet; 43. a stator; 44. a rotor;

50. a heat exchanger; 60. an electronic oil pump; 70. and driving the motor.

Detailed Description

Embodiments of the present invention will be described in detail below, by way of example with reference to the accompanying drawings.

A compression device 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 10, and the compression device 100 may be applied to a vehicle.

As shown in connection with fig. 1 to 10, a compression apparatus 100 according to the present invention may mainly include: a compression mechanism 10 and a speed change mechanism 20, wherein the speed change mechanism 20 is in driving connection with the compression mechanism 10 and is isolated from each other. Specifically, the refrigerant flow channel 11 is arranged in the compression mechanism 10, so that the refrigerant can flow into the compression mechanism 10 through the refrigerant flow channel 11, and then flows out of the compression mechanism 10 through the refrigerant flow channel 11 after being compressed by the compression mechanism 10, and thus the refrigerant can normally circulate and exchange heat in the vehicle, and each system in the vehicle can normally work. The speed change mechanism 20 is in transmission connection with the compression mechanism 10, and the speed change mechanism 20 is in transmission connection with the compression mechanism 10, so that the power of the speed change mechanism 20 can be smoothly transmitted to the compression mechanism 10, and the compression mechanism 10 can be used for compressing the refrigerant, so that the compression device 100 can work normally.

Further, the compression mechanism 10 and the speed change mechanism 20 are isolated from each other, so that the refrigerant flow channel 11 in the compression mechanism 10 is far away from the speed change mechanism 20, and then the refrigerant in the compression mechanism 10 is isolated from the speed change mechanism 20, and the refrigerant does not flow through the speed change mechanism 20, so that mechanical abrasive particles in the speed change mechanism 20 can be prevented from entering the compression mechanism 10 along with the refrigerant, the abrasion of the compression mechanism 10 is reduced, and the mechanical life of the compression mechanism 10 is prolonged.

Referring to fig. 1, the compressing apparatus 100 further includes a machine member 40, where the machine member 40 is in transmission connection with the speed change mechanism 20, so that the output power of the machine member 40 can be smoothly transmitted to the speed change mechanism 20, and further the machine member 40 can drive the compressing mechanism 10 to compress the refrigerant, so that the compressing apparatus 100 works normally. The electric machine 40, the speed changing mechanism 20 and the compression mechanism 10 are sequentially arranged along the axial direction of the electric machine 40, so that the electric machine 40, the speed changing mechanism 20 and the compression mechanism 10 are coaxial and are mutually independent, not only can the compactness and the working reliability of the electric machine 40, the speed changing mechanism 20 and the compression mechanism 10 be ensured, but also the compression mechanism 10 can be separated from the electric machine 40 and the speed changing mechanism 20, so that the refrigerant flowing into the compression mechanism 10 is prevented from flowing through the electric machine 40 and the speed changing mechanism 20.

In the prior art, the refrigerant flows into the compression mechanism after flowing through the electric machine part, and the heat generated by the motor part is transferred to the refrigerant, so that the temperature of the refrigerant is increased, however, the higher the temperature of the refrigerant flowing into the compression mechanism is, the lower the working efficiency of the compression mechanism is. In the embodiment of the present invention, the refrigerant entering the compression mechanism 10 does not pass through the machine member 40 before entering the compression mechanism 10, and the refrigerant can be kept at a low temperature, so that the working efficiency of the compression mechanism 10 can be improved. According to the embodiment of the invention, the working efficiency of the compression mechanism 10 can be improved by 4% -5%.

Referring to fig. 1, the compression device 100 further includes an electric control unit 30, where the electric control unit 30 is disposed on a side of the electric machine unit 40 away from the speed change mechanism 20, and the electric machine unit 40 is respectively connected with the speed change mechanism 20 and the electric control unit 30, so that not only can the electric machine unit 40 be directly connected with the speed change mechanism 20 in a transmission manner, the electric machine unit 40 can drive the speed change mechanism 20 to rotate, but also the electric machine unit 40 can be conveniently connected with the electric control unit 30, and the electric control unit 30 can control the output torque of the electric machine unit 40. In the embodiment of the present invention, the electric machine member 40 is a special motor with low rotation speed, and has small size, so that the size of the compression device 100 can be reduced, and the lightweight and miniaturization of the compression device 100 can be improved.

Referring to fig. 5, the heat exchanger 50 is in communication with the transmission mechanism 20, the electrical control 30, and the motor element 40, respectively. Specifically, in the embodiment of the present invention, the electric control 30, the electric machine member 40, the speed change mechanism 20 and the compression mechanism 10 are separated from each other, the refrigerant in the compression mechanism 10 no longer cools the electric control member 30, the electric machine member 40 and the speed change mechanism 20, and the heat exchanger 50 is arranged to be communicated with the speed change mechanism 20, the electric control member 30 and the motor member 40, so that the oil in the heat exchanger 50 flows to the speed change mechanism 20, the electric control member 30 and the motor member 40, and heat dissipation can be performed on the speed change mechanism 20, the electric control member 30 and the electric machine member 40 through the oil in the heat exchanger 50, so as to ensure that the speed change mechanism 20, the electric control member 30 and the motor member 40 work normally.

Therefore, by arranging the speed change mechanism 20 and the compression mechanism 10 in the compression device 100 to be isolated from each other, abrasive particles in the speed change mechanism 20 can be prevented from entering the compression mechanism 10 to cause abrasion, so that not only the mechanical life of the compression device 100 can be improved, but also the heat exchanger 50 in a vehicle can be respectively connected with the speed change mechanism and the electric machine member 40, so that oil in the heat exchanger 50 respectively flows to the speed change mechanism and the electric machine member 40 to enable the speed change mechanism and the electric machine member 40 to normally dissipate heat, and thus the temperature of a refrigerant sucked by the compression mechanism 10 can be normal, and the working efficiency of the compression device 100 can be ensured.

Referring to fig. 1 and 6, the electric control member 30 includes an electric control housing 31, a first cooling flow channel 311, a second cooling flow channel 312 and a third cooling flow channel 313 are formed on the electric control housing 31, the first cooling flow channel 311, the second cooling flow channel 312 and the third cooling flow channel 313 are all communicated with the heat exchanger 50, the first cooling flow channel 311 extends in a radial direction of the electric control housing 31, the second cooling flow channel 312 and the third cooling flow channel 313 are respectively located at two sides of the first cooling flow channel 311, and the second cooling flow channel 312 and the third cooling flow channel 313 are all at least partially circumferentially extending on the electric control housing 31.

Specifically, the electric control housing 31 may provide stable and reliable setting positions for the first cooling flow channel 311, the second cooling flow channel 312 and the third cooling flow channel 313 in the electric control member 30, so that a flow path of oil in the electric control member 30 may be defined, and the first cooling flow channel 311, the second cooling flow channel 312 and the third cooling flow channel 313 are all in communication with the heat exchanger 50, so that the oil in the heat exchanger 50 may smoothly flow to the first cooling flow channel 311, the second cooling flow channel 312 and the third cooling flow channel 313.

Further, the first cooling flow passage 311 extends in the radial direction of the electric control housing 31, so that the oil in the first cooling flow passage 311 flows along the radial direction of the electric control housing 31, the second cooling flow passage 312 and the third cooling flow passage 313 are respectively located at two sides of the first cooling flow passage 311 and the second cooling flow passage 312, so that the second cooling flow passage 312 and the third cooling flow passage 313 are far away from each other, the flowing range of the oil in the electric control housing 31 is enlarged, the second cooling flow passage 312 and the third cooling flow passage 313 at least partially extend in the circumferential direction of the electric control housing 31, the oil and the electric control member 30 can exchange heat uniformly, and the heat dissipation efficiency of the electric control member 30 is improved.

As shown in fig. 1 and 6, the electric control member 30 further includes an electric control device and a bearing 32, the electric machine member 40 is provided with a motor crankshaft 41, one end of the motor crankshaft 41 is rotatably connected with the bearing 32, the bearing 32 and the electric control device are both disposed in the electric control housing 31, the first cooling flow passage 311 is communicated with the bearing 32, and the second cooling flow passage 312 and the third cooling flow passage 313 are both communicated with the electric control device. Specifically, one end of the motor crankshaft 41 on the motor member 40 is connected with the bearing 32 in the electric control member 30, so that not only can the normal rotation of the motor crankshaft 41 be ensured, but also the structure of the electric control member 30 and the motor member 40 in the compression device 100 can be more compact, and the light weight and the miniaturization of the compression device 100 can be improved.

Further, in the electric control component 30, the first cooling flow passage 311 is communicated with the bearing 32, so that oil can flow to the bearing 32, cool the bearing 32, dissipate heat between the motor crankshaft 41 and the bearing 32, and reduce wear of the bearing 32 and the motor crankshaft 41. The second cooling flow channel 312 and the third cooling flow channel 313 are both communicated with the electric control device, so that oil flows along the second cooling flow channel 312 and the third cooling flow channel 313, and then the oil dissipates heat to the electric control device, and the electric control device works efficiently.

As shown in fig. 1, 7 and 8, the electric machine 40 includes a motor housing 42, and fourth and fifth cooling flow passages 421 and 422 are provided on circumferential side walls of the motor housing 42, and the fourth and fifth cooling flow passages 421 and 422 are each in communication with the heat exchanger 50. Specifically, the fourth cooling flow path 421 and the fifth cooling flow path 422 are disposed on the circumferential side wall of the motor housing 42, which not only can define the flow path of the oil in the motor member 40, but also can facilitate the structural arrangement of the electric machine member 40, and both the fourth cooling flow path 421 and the fifth cooling flow path 422 are in communication with the heat exchanger 50, which can make the oil smoothly flow into the electric machine member 40 and along the fourth cooling flow path 421 and the fifth cooling flow path 422.

Further, the fourth cooling flow channel 421 and the fifth cooling flow channel 422 are disposed opposite to each other and extend in opposite directions in the circumferential direction of the motor housing 42, the oil in the fourth cooling flow channel 421 and the oil in the fifth cooling flow channel 422 both flow into the motor housing 42 from the same position, and then flow out of the motor housing 42 from the same position, so that the dual-flow channel design can make the electric machine member 40 fully exchange heat with the oil, and can improve the heat exchange efficiency of the electric machine member 40.

Referring to fig. 1, 7 and 8, the electric machine member 40 includes a stator 43, the circumferential side wall of the motor housing 42 is provided with an avoidance portion 423 and a protrusion portion 424, the protrusion portion 424 is in interference fit with the stator 43, the avoidance portion 423 is arranged at intervals with the stator 43, the protrusion portion 424 is a plurality of protrusion portions 424 at intervals circumferentially, the avoidance portion 423 is located between two adjacent protrusion portions 424, sub-flow passages 425 are provided on the avoidance portion 423 and the protrusion portions 424, and the sub-flow passages 425 on the plurality of protrusion portions 424 and the plurality of avoidance portions 423 are sequentially connected circumferentially to form a fourth cooling flow passage 421 and a fifth cooling flow passage 422.

Specifically, when the stator 43 is assembled in the motor housing 42, the housing of the stator 43 can be in interference fit with the protrusions 424 on the circumferential side wall of the motor housing 42, so that the stator 43 can be fixed in the motor housing 42, and the plurality of protrusions 424 on the side wall of the motor housing 42 are arranged at intervals along the circumferential direction of the motor housing 42, so that the contact area between the motor housing 42 and the housing of the stator 43 can be increased, the structural stability of the stator 43 in the motor housing 42 can be improved, the housing of the stator 43 can be uniformly stressed, and the structural strength of the electric machine member 40 can be improved.

Further, the plurality of avoidance portions 423 on the side wall of the motor housing 42 are arranged at intervals with the stator 43, so that the interval space between the motor housing 42 and the stator 43 can be increased, the volume of oil in the electric machine part 40 between the avoidance portions 423 and the stator 43 can be increased, the heat absorption capacity of the oil can be increased, the heat dissipation effect of the electric machine part 40 can be improved, the avoidance portions 423 are located between two adjacent protruding portions 424, namely, the avoidance portions 423 and the protruding portions 424 are arranged at intervals along the circumferential side wall of the motor housing 42, and the structural strength of the motor housing 42 can be improved.

Further, the avoidance portion 423 and the protrusion portion 424 are respectively provided with a sub-runner 425, and under the condition that the avoidance portion 423 and the protrusion portion 424 are arranged along the circumferential side wall of the motor housing 42 at intervals, the sub-runners 425 on the plurality of protrusion portions 424 and the plurality of avoidance portions 423 are circumferentially connected in sequence to form a fourth cooling runner 421 and a fifth cooling runner 422, so that the circulation of oil in the fourth cooling runner 421 and the fifth cooling runner 422 can be ensured, the heat dissipation effect of the oil in the heat exchanger 50 on the motor member 40 can be ensured, the oil can smoothly flow out of the motor housing 42, and the normal heat dissipation of the electric machine member 40 is ensured.

According to the embodiment of the invention, the fourth cooling flow channels 421 and the fifth cooling flow channels 422 are multiple, the fourth cooling flow channels 421 are arranged at intervals in the axial direction of the motor housing 42, and the fifth cooling flow channels 422 are arranged at intervals in the axial direction of the motor housing 42, so that the contact area between the stator 43 and the oil in the axial direction can be increased, more heat generated by the oil absorbing electric machine 40 can be increased, the heat dissipation efficiency of the electric machine 40 can be improved, and the efficient operation of the electric machine 40 can be maintained.

As shown in fig. 7 and 8, the motor housing 42 is provided with a first cooling outlet 426, the fourth cooling flow passage 421 and the fifth cooling flow passage 422 are all communicated with the first cooling outlet 426, the electric control housing 31 is provided with a second cooling outlet 314, the first cooling flow passage 311, the second cooling flow passage 312 and the third cooling flow passage 313 are all communicated with the second cooling outlet 314, and the first cooling outlet 426 and the second cooling outlet 314 are all communicated. Specifically, the first cooling outlet 426 is disposed on the motor housing 42, so that the oil in the motor housing 42 can smoothly flow out from the motor housing 42, the fourth cooling flow channel 421 and the fifth cooling flow channel 422 are both communicated with the first cooling outlet 426, so that the flow of the oil from the fourth cooling flow channel 421 to the first cooling outlet 426 can be ensured, the flow of the oil from the fifth cooling flow channel 422 to the first cooling outlet 426 can be ensured, and in this way, the oil in the electric machine member 40 can smoothly flow out from the motor housing 42, so as to take away the heat generated by the electric machine member 40, and the heat dissipation effect of the heat exchanger 50 on the electric machine member 40 is realized.

Further, the second cooling outlet 314 provided on the electric control housing 31 is communicated with the first cooling outlet 426, and the first cooling flow passage 311, the second cooling flow passage 312 and the third cooling flow passage 313 on the electric control housing 31 are all communicated with the second cooling outlet 314, so that the first cooling flow passage 311, the second cooling flow passage 312 and the third cooling flow passage 313 are all communicated with the first cooling outlet 426, the oil flowing through the first cooling flow passage 311, the second cooling flow passage 312 and the third cooling flow passage 313 flows to the first cooling outlet 426 through the second cooling outlet 314, and then flows out of the compression device 100 from the first cooling outlet 426 together with the oil in the motor housing 42.

As shown in fig. 1,2 and 3, the transmission mechanism 20 includes a transmission case 21, a drive gear member 22, and a planetary row 23, and the drive gear member 22 and the planetary row 23 are disposed in the transmission case 21 and are engaged with each other. Specifically, in the speed change mechanism 20, the speed change housing 21 can provide stable and reliable setting positions for the driving gear member 22 and the planetary rows 23, so that the driving gear member 22 and the planetary rows 23 can be ensured to work normally in the compression device 100, the driving gear member 22 and the planetary rows 23 are meshed with each other for transmission, and smooth power transmission between the driving gear member 22 and the planetary rows 23 can be ensured.

Further, the planetary rows 23 are in driving connection with the electric machine member 40 and the compression mechanism 10, respectively, and one of the driving gear member 22 and the motor member 40 selectively drives the planetary rows 23 to operate the compression mechanism 10. Specifically, the planetary gear set 23 is meshed with the driving gear set 22 and is also in transmission connection with the electric machine member 40, so that the driving gear set 22 and the electric machine member 40 can both transmit power to the planetary gear set 23, one of the driving gear set 22 and the electric machine member 40 selectively drives the planetary gear set 23 to drive the compression mechanism 10 to compress the refrigerant, and the compression device 100 can select different electric machine members 40 or driving motors 70 of the vehicle to drive the compression mechanism 10 to work under the condition that the vehicles are in different refrigeration demands, and therefore the electric machine member 40 and the driving motors 70 can work in a high-efficiency area to reduce the energy consumption of the vehicles.

As shown in conjunction with fig. 9 and 10, the planetary row 23 includes a sun gear 231, a planetary gear 232, a carrier 233, and a ring gear 234, the ring gear 234 being meshed with the drive gear member 22, the planetary gear 232 being disposed on the carrier 233 and meshed between the sun gear 231 and the ring gear 234. Specifically, the ring gear 234 of the planetary gear set 23 is meshed with the driving gear member 22, and the planetary gears 232 are meshed between the sun gear 231 and the ring gear 234, so that power can be transmitted between the driving gear member 22, the ring gear 234, the planetary gears 232 and the sun gear 231.

It should be noted that, since the meshing transmission between the driving gear member 22 and the ring gear 234 generates heat, the meshing transmission between the ring gear 234 and the planet gears 232 generates heat, and the meshing transmission between the planet gears 232 and the sun gear 231 generates heat, it is necessary to cool the driving gear member 22 and the ring gear 234, the ring gear 234 and the planet gears 232, and the planet gears 232 and the sun gear 231 to prevent the sun gear 231, the planet gears 232, the carrier 233, and the ring gear 234 from decreasing mechanical strength due to frictional heat generation.

As shown in fig. 9 and 10, the sixth cooling flow passage 211 is provided in the transmission housing 21, and an inlet of the sixth cooling flow passage 211 is communicated with the heat exchanger 50, so that oil in the heat exchanger 50 flows into the transmission housing 21 and flows in the transmission housing 21 along the sixth cooling flow passage 211, and an outlet of the sixth cooling flow passage 211 is communicated with a meshing position of the driving gear member 22 and the ring gear 234, so that the oil cools the meshing position of the driving gear member 22 and the ring gear 234, thereby preventing friction overheat between the driving gear member 22 and the ring gear 234, affecting structural strength of the driving gear member 22 and the planetary rows 23, reducing wear between the driving gear member 22 and the planetary rows 23, and prolonging mechanical life of the transmission mechanism 20.

As shown in fig. 9 and 10, a seventh cooling flow passage 212 and an eighth cooling flow passage 213 are provided in the transmission case 21, inlets of the seventh cooling flow passage 212 and the eighth cooling flow passage 213 are both in communication with the heat exchanger 50, an outlet of the seventh cooling flow passage 212 is in communication with a meshing position of the planetary gear 232 and the ring gear 234, and an outlet of the eighth cooling flow passage 213 is in communication with a meshing position of the sun gear 231 and the planetary gear 232.

Specifically, the seventh cooling flow passage 212 and the eighth cooling flow passage 213 are further disposed in the transmission housing 21 and are in communication with the heat exchanger 50, so that the oil in the heat exchanger 50 can flow along the seventh cooling flow passage 212 and the eighth cooling flow passage 213, wherein the sixth cooling flow passage 211 can guide the oil in the heat exchanger 50 to the engagement position of the driving gear member 22 and the gear ring 234 to cool the engagement position of the driving gear member 22 and the gear ring 234, so that the abrasion between the driving gear member 22 and the gear ring 234 can be reduced, and the mechanical life of the transmission mechanism 20 can be prolonged.

Further, the outlet of the seventh cooling flow passage 212 is connected with the meshing position of the planet 232 and the gear ring 234, so that the oil in the heat exchanger 50 can cool the meshing position of the planet 232 and the gear ring 234, thereby preventing friction heat generation of the planet 232 and the gear ring 234 from reducing mechanical strength and reducing abrasion between the planet 232 and the gear ring 234. The outlet of the eighth cooling flow passage 213 is communicated with the engagement position of the sun gear 231 and the planet gear 232, so that oil in the heat exchanger 50 can cool the engagement position of the sun gear 231 and the planet gear 232, friction heat generation between the sun gear 231 and the planet gear 232 can be prevented, mechanical strength can be reduced, and abrasion between the sun gear 231 and the planet gear 232 can be reduced.

As shown in fig. 3, 9 and 10, the number of the planetary gears 232 is plural, the number of the seventh cooling flow channels 212 and the number of the eighth cooling flow channels 213 are plural, the outlets of the seventh cooling flow channels 212 are in one-to-one correspondence with the meshing positions of the plurality of planetary gears 232 and the ring gear 234, and the number of the eighth cooling flow channels 213 are in one-to-one correspondence with the meshing positions of the plurality of planetary gears 232 and the sun gear 231. Specifically, the plurality of planetary gears 232 are disposed in the planetary gear row 23, so that the driving torque and the driving stability of the planet carrier 233 can be increased, the plurality of seventh cooling flow passages 212 are correspondingly disposed in the transmission housing 21, and the outlets of the plurality of seventh cooling flow passages 212 are in one-to-one correspondence with the meshing positions of the plurality of planetary gears 232 and the ring gear 234, so that the oil entering the transmission housing 21 can cool the meshing positions of the plurality of planetary gears 232 and the ring gear 234 at the same time, the plurality of eighth cooling flow passages 213 are correspondingly disposed in the transmission housing 21, and the outlets of the plurality of eighth cooling flow passages 213 are correspondingly disposed in one-to-one correspondence with the meshing positions of the plurality of planetary gears 232 and the sun gear 231, so that the oil entering the transmission housing 21 can cool the meshing positions of the plurality of planetary gears 232 and the sun gear 231 at the same time, and thus the heat dissipation efficiency of the transmission mechanism 20 can be improved, and the mechanical wear of the transmission mechanism 20 can be further reduced.

Further, a third cooling outlet 214 is provided at the bottom of the shift housing 21, and the oil flowing out of the sixth cooling flow passage 211, the seventh cooling flow passage 212, and the eighth cooling flow passage 213 is finally discharged out of the shift housing 21 through the third cooling outlet 214. The oil spraying holes 25 are arranged at the positions of the sixth cooling flow passage 211 corresponding to the meshing position of the driving gear piece 22 and the gear ring 234, the positions of the seventh cooling flow passage 212 corresponding to the meshing position of the planet gears 232 and the gear ring 234 and the positions of the eighth cooling flow passage 213 corresponding to the meshing position of the planet gears 232 and the sun gear 231, so that oil can be accurately sprayed to the meshing position in the speed change mechanism 20, and the heat dissipation efficiency of the speed change mechanism 20 is improved.

According to the embodiment of the invention, the connection mode of the speed changing shell 21 and the motor shell 42 comprises but is not limited to screw connection, and the sealing ring is arranged between the speed changing shell 21 and the motor shell 42, the connection mode of the motor shell 42 and the electric control shell 31 comprises but is not limited to screw connection, and the sealing ring is arranged between the motor shell 42 and the electric control shell 31, the connection mode of the speed changing shell 21 and the compression shell 12 comprises but is not limited to screw connection, and the sealing ring is arranged between the speed changing shell 21 and the compression shell 12, so that the electric control part 30, the electric machine element 40, the speed changing mechanism 20 and the compression mechanism 10 are tightly connected, the structural reliability and the integration degree of the compression device 100 are improved, the heat dissipation independence of the electric control part 30, the electric machine element 40, the speed changing mechanism 20 and the compression mechanism 10 can be ensured, and the working reliability of the compression device 100 can be improved.

The following describes the flow path of the oil in conjunction with fig. 5, in which an electronic oil pump 60 is provided in the oil flow path to drive the flow of the oil:

according to some embodiments of the present invention, oil flows along the path of heat exchanger 50-electric machine 40-electronic oil pump 60-heat exchanger 50, and as oil enters electric machine 40, oil flows within motor housing 42 along fourth cooling flow passage 421 and fifth cooling flow passage 422, respectively, and then out of first cooling outlet 426 and back to heat exchanger 50;

According to other embodiments of the present invention, the oil flows along the path of the heat exchanger 50-the speed change mechanism 20-the electronic oil pump 60-the heat exchanger 50, and when the oil enters the speed change mechanism 20, the oil flows in the speed change housing 21 along the sixth cooling flow passage 211, the seventh cooling flow passage 212 and the eighth cooling flow passage 213, respectively, and then flows out of the third cooling outlet 214 and flows back to the heat exchanger 50.

According to further embodiments of the present invention, oil flows along the path of the heat exchanger 50-the electric control member 30-the electric machine 40-the electric oil pump 60-the heat exchanger 50, and when the oil enters the electric control member 30, the oil flows in the electric control housing 31 along the first cooling flow passage 311, the second cooling flow passage 312 and the third cooling flow passage 313, respectively, and then flows from the first cooling outlet 426 to the second cooling outlet 314, and then flows from the second cooling outlet 314, and then flows back into the heat exchanger 50.

As shown in fig. 1 and 7, the electric machine member 40 includes a motor housing 42, a stator 43, a rotor 44, and a motor crankshaft 41, the stator 43, the rotor 44, and the motor crankshaft 41 are all disposed in the motor housing 42, the stator 43 is in interference fit with the motor housing 42, the rotor 44 is rotatably disposed in an inner ring of the stator 43, the motor crankshaft 41 is threaded through the rotor 44, and is in interference fit with the rotor 44, and one end of the motor crankshaft 41 is in interference fit with the carrier 233. Specifically, the motor housing 42 may provide stable and reliable setting positions for the stator 43, the rotor 44 and the motor crankshaft 41 in the motor member 40, so as to ensure that the motor member 40 operates normally, wherein the stator 43 is in interference fit with the motor housing 42, so as to ensure that the stator 43 is stable in structural position in the motor member 40, the rotor 44 is disposed in an inner ring of the stator 43, the rotor 44 is rotated under the action of a magnetic field generated by the stator 43 after the motor member 40 is electrified, so as to drive the motor crankshaft 41 to rotate, the motor crankshaft 41 penetrates through the rotor 44, and is in interference fit with the rotor 44, so that the connection stability and transmission reliability between the rotor 44 and the motor crankshaft 41 can be improved, and one end of the motor crankshaft 41 is in interference fit with the planet carrier 233, so that the motor member 40 and the transmission mechanism 20 can be reliably in transmission fit, so that the motor member 40 can drive the transmission mechanism 20 to rotate, and power the transmission mechanism 20.

As shown in fig. 1 and 2, the compression mechanism 10 includes a compression casing 12, a fixed scroll 13 and an orbiting scroll 14, the fixed scroll 13 and the orbiting scroll 14 are both disposed in the compression casing 12, the fixed scroll 13 is in interference fit with the compression casing 12, the orbiting scroll 14 is rotatably disposed at an inner ring of the fixed scroll 13, the speed change mechanism 20 further includes a transmission crankshaft 24, one end of the transmission crankshaft 24 is in interference fit with a sun gear 231, and the other end of the transmission crankshaft 24 is in interference fit with the orbiting scroll 14.

Specifically, when the compression mechanism 10 works, the power in the speed change mechanism 20 is transmitted to the movable scroll 14 through the transmission crankshaft 24, so that the movable scroll 14 rotates, the fixed scroll 13 is in interference fit with the compression shell 12 to be fixed, the fixed scroll 13 can be ensured to be structurally stable, the compression mechanism 10 can smoothly exhaust, the refrigerant can be exhausted from the fixed scroll 13 and then flows to the compression shell 12, the compression shell 12 can buffer the refrigerant gas exhausted from the fixed scroll 13, the pulsation of the exhaust of the compression mechanism 10 is reduced, the exhaust noise of the compression mechanism 10 is reduced, the working reliability of the compression mechanism 10 is improved, and the noise generated by the compression device 100 is reduced.

Further, one end of the driving crankshaft 24 in the speed change mechanism 20 is in interference fit with the sun gear 231, so that the driving crankshaft 24 and the sun gear 231 can be reliably connected, the transmission stability of power between the sun gear 231 and the driving crankshaft 24 can be guaranteed, the other end of the driving crankshaft 24 is in interference fit with the movable scroll 14, the driving crankshaft 24 and the movable scroll 14 can be reliably connected, the transmission stability of power between the driving crankshaft 24 and the movable scroll 14 can be guaranteed, and the transmission reliability and stability of power between the speed change mechanism 20 and the compression mechanism 10 can be guaranteed, so that the compression device 100 can normally operate. In the embodiment of the invention, when the transmission crankshaft 24 is matched with the movable scroll 14, the transmission crankshaft 24 passes through the compression shell 12, and the sealing bearing 32 is arranged between the transmission crankshaft 24 and the compression shell 12, so that not only can the transmission crankshaft 24 smoothly drive the movable scroll 14 to rotate, but also the compression mechanism 10 and the speed change mechanism 20 can be sealed, and the refrigerant is prevented from entering the speed change mechanism 20.

As shown in connection with fig. 1-3, the drive gear member 22 includes a drive gear 221 and a drive shaft 222, the drive shaft 222 is in interference fit with the drive gear 221, and the drive gear 221 is meshed with the ring gear 234. Specifically, the driving shaft 222 and the driving gear 221 in the driving gear member 22 are in interference fit, so that the connection reliability of the driving shaft 222 and the driving gear 221 can be improved, the driving gear 221 is meshed with the gear ring 234, power can be smoothly transmitted between the driving gear 221 and the gear ring 234, and stability and reliability of power transmitted from the driving gear member 22 to the speed change mechanism 20 can be ensured, so that the speed change mechanism 20 can stably rotate, and further the rotation stability of the movable scroll 14 can be ensured, so that the working efficiency of the compression mechanism 10 can be improved.

In the embodiment of the present invention, the driving motor 70 in the vehicle can be connected to the driving gear member 22, so that not only can the compression device 100 normally operate when the vehicle is stopped, but also the efficiency of the driving motor 70 is high, and the operating efficiency of the compression device 100 can be improved. According to an embodiment of the present invention, the drive motor 70 may be coupled to the drive shaft 222 in the drive gear member 22 by a key, pin, or may be coupled to the drive gear 221 by a belt. The drive motor 70 in the vehicle includes, but is not limited to, a main drive motor and a wheel side motor.

According to other embodiments of the present invention, the transmission housing 21 and the compression housing 12 are integrally formed as a structural member as shown in connection with fig. 4. Specifically, the speed change housing 21 and the compression housing 12 are integrally formed, so that on one hand, the number of parts of the compression device 100 can be reduced, the manufacturing process of the compression device 100 is simplified, the manufacturing difficulty of the compression device 100 is reduced, on the other hand, the integration degree of the compression device 100 is higher, the tightness between the speed change mechanism 20 and the compression mechanism 10 can be improved, the refrigerant is further prevented from entering the speed change mechanism 20 to bring mechanical abrasive particles into the compression mechanism 10, and further the working reliability of the compression device 100 can be improved.

According to the embodiment of the invention, the compression device 100 can be applied to a vehicle, and when the vehicle provided with the compression device 100 in the embodiment of the invention has larger cooling capacity, the driving motor 70 can be used for driving the compression device 100, and power is transmitted along the path of the driving motor 70, the driving gear piece 22, the gear ring 234, the planet wheel 232, the sun wheel 231, the transmission crankshaft 24 and the movable scroll 14, so that the working efficiency of the compression mechanism 10 can be improved, the larger heat exchange requirement of the vehicle can be met, and the noise generated by the motor piece 40 in the compression device 100 at a high rotating speed can be prevented, and the riding comfort of drivers and passengers can be further improved.

Further, when the cooling capacity requirement of the vehicle provided with the compression device 100 in the embodiment of the invention is smaller, the motor element 40 in the compression device 100 can be used for driving the movable scroll 14, and power is transmitted along the paths of the rotor 44, the motor crankshaft 41, the planet carrier 233, the planet wheel 232, the sun wheel 231, the transmission crankshaft 24 and the movable scroll 14, so that working power can be provided for the compression mechanism 10, the motor element 40 can be made to work in a high-efficiency area, and the power transmission efficiency in the compression device 100 is improved.

In the description of the present 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", "circumferential", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (19)

1.A compression device, comprising:

A compression mechanism (10);

a speed change mechanism (20); the speed change mechanism (20) is in transmission connection with the compression mechanism (10) and is isolated from each other.

2. The compression device according to claim 1, wherein the compression device (100) further comprises a motor member (40), the motor member (40) being in driving connection with the speed change mechanism (20), the motor member (40), the speed change mechanism (20) and the compression mechanism (10) being arranged in sequence in an axial direction of the motor member (40).

3. The compression device according to claim 2, wherein the compression device (100) further comprises an electrical control (30), the electrical control (30) being provided on a side of the motor member (40) remote from the gear change mechanism (20).

4. A compression device according to claim 3, wherein the electric control member (30) comprises an electric control housing (31), a first cooling flow passage (311), a second cooling flow passage (312) and a third cooling flow passage (313) are formed in the electric control housing (31), the first cooling flow passage (311), the second cooling flow passage (312) and the third cooling flow passage (313) are all used for being communicated with the heat exchanger (50), the first cooling flow passage (311) extends in the radial direction of the electric control housing (31), the second cooling flow passage (312) and the third cooling flow passage (313) are respectively located at two sides of the first cooling flow passage (311), and the second cooling flow passage (312) and the third cooling flow passage (313) are all at least partially circumferentially extending on the electric control housing (31).

5. The compression device according to claim 4, wherein the electric control member (30) further comprises an electric control device and a bearing (32), the electric control member (40) is provided with a motor crankshaft (41), one end of the motor crankshaft (41) is rotatably connected with the bearing (32), the bearing (32) and the electric control device are both disposed in the electric control housing (31), the first cooling flow passage (311) is communicated with the bearing (32), and the second cooling flow passage (312) and the third cooling flow passage (313) are both communicated with the electric control device.

6. The compression device according to claim 4, wherein the motor member (40) includes a motor housing (42), a fourth cooling flow passage (421) and a fifth cooling flow passage (422) are provided on circumferential side walls of the motor housing (42), the fourth cooling flow passage (421) and the fifth cooling flow passage (422) are each for communication with the heat exchanger (50), and the fourth cooling flow passage (421) and the fifth cooling flow passage (422) are disposed opposite to each other and extend in opposite directions in the circumferential direction of the motor housing (42).

7. The compression device according to claim 6, wherein the motor member (40) includes a stator (43), a circumferential side wall of the motor housing (42) is provided with a relief portion (423) and a protrusion portion (424), the protrusion portion (424) is in interference fit with the stator (43), the relief portion (423) is arranged with the stator (43) at intervals, the protrusion portion (424) is a plurality of, a plurality of the protrusion portions (424) are arranged at intervals in the circumferential direction, the relief portion (423) is located between two adjacent protrusion portions (424), sub-flow passages (425) are respectively arranged on the relief portion (423) and the protrusion portion (424), and a plurality of the sub-flow passages (425) on the relief portion (424) are sequentially connected in the circumferential direction so as to form the fourth cooling flow passage (421) and the fifth cooling flow passage (422).

8. The compression device according to claim 6, wherein the fourth cooling flow passage (421) and the fifth cooling flow passage (422) are each plural, the plural fourth cooling flow passages (421) are arranged at intervals in the axial direction of the motor housing (42), and the plural fifth cooling flow passages (422) are arranged at intervals in the axial direction of the motor housing (42).

9. The compression device according to claim 6, wherein a first cooling outlet (426) is provided on the motor housing (42), the fourth cooling flow passage (421) and the fifth cooling flow passage (422) are both in communication with the first cooling outlet (426), a second cooling outlet (314) is provided on the electric control housing (31), and the first cooling flow passage (311), the second cooling flow passage (312) and the third cooling flow passage (313) are each in communication with the second cooling outlet (314), and the first cooling outlet (426) and the second cooling outlet (314) are each in communication.

10. The compression device according to claim 2, wherein the speed change mechanism (20) comprises a speed change shell (21), a driving gear member (22) and a planetary row (23), the driving gear member (22) and the planetary row (23) are both arranged in the speed change shell (21) and are in meshed transmission, the planetary row (23) is in transmission connection with the motor member (40) and the compression mechanism (10) respectively, and one of the driving gear member (22) and the motor member (40) selectively drives the planetary row (23) to drive the compression mechanism (10) to work.

11. The compression device according to claim 10, wherein the planetary row (23) comprises a sun gear (231), planetary wheels (232), a planet carrier (233) and a ring gear (234), the ring gear (234) being in mesh with the drive gear member (22), the planetary wheels (232) being arranged on the planet carrier (233) and being in mesh between the sun gear (231) and the ring gear (234).

12. A compression device according to claim 11, characterized in that a sixth cooling flow passage (211) is provided in the gearbox housing (21), the inlet of the sixth cooling flow passage (211) being adapted to communicate with the heat exchanger (50), the outlet of the sixth cooling flow passage (211) being adapted to communicate with the engagement of the driving gear member (22) and the ring gear (234).

13. The compression device according to claim 11, characterized in that a seventh cooling flow passage (212) and an eighth cooling flow passage (213) are provided in the speed change housing (21), the inlets of the seventh cooling flow passage (212) and the eighth cooling flow passage (213) are both used for communication with the heat exchanger (50), the outlet of the seventh cooling flow passage (212) is communicated with the meshing of the planetary gear (232) and the ring gear (234), and the outlet of the eighth cooling flow passage (213) is communicated with the meshing of the sun gear (231) and the planetary gear (232).

14. The compression device according to claim 13, wherein the number of the planetary wheels (232) is plural, the number of the seventh cooling flow channels (212) and the number of the eighth cooling flow channels (213) are plural, the outlets of the seventh cooling flow channels (212) are in one-to-one correspondence with the meshing positions of the planetary wheels (232) and the ring gear (234), and the eighth cooling flow channels (213) are in one-to-one correspondence with the meshing positions of the planetary wheels (232) and the sun gear (231).

15. The compression device of claim 12, wherein the motor member (40) includes a motor housing (42), a stator (43), a rotor (44) and a motor crankshaft (41), the stator (43), the rotor (44) and the motor crankshaft (41) are all disposed in the motor housing (42), the stator (43) is in interference fit with the motor housing (42), the rotor (44) is rotatably disposed in an inner ring of the stator (43), the motor crankshaft (41) is threaded through the rotor (44) and is in interference fit with the rotor (44), and one end of the motor crankshaft (41) is in interference fit with the carrier (233).

16. The compression device according to claim 12, wherein the compression mechanism (10) comprises a compression housing (12), a fixed scroll (13) and an orbiting scroll (14), the fixed scroll (13) and the orbiting scroll (14) are both disposed in the compression housing (12), the fixed scroll (13) and the compression housing (12) are in interference fit, the orbiting scroll (14) is rotatably disposed in an inner ring of the fixed scroll (13), the speed change mechanism (20) further comprises a transmission crankshaft (24), one end of the transmission crankshaft (24) is in interference fit with the sun wheel (231), and the other end of the transmission crankshaft (24) is in interference fit with the orbiting scroll (14).

17. The compression device according to claim 12, wherein the drive gear member (22) comprises a drive gear (221) and a drive shaft (222), the drive shaft (222) being in an interference fit with the drive gear (221), the drive gear (221) being in engagement with the ring gear (234).

18. A compression device according to claim 16, characterized in that the gear housing (21) and the compression housing (12) are integrally formed as a structural member.

19. A vehicle characterized by comprising a compression device (100) according to any one of claims 1-18.