Integrated compressor capable of dissipating heat through air cooling

Abstract

The utility model discloses an integrated compressor utilizing air cooling for heat dissipation, relates to the technical field of compressors, and aims to solve the problem of poor heat dissipation effect of the compressors. The compressor comprises an integrated motor and a compressor, a motor main shaft is arranged in the integrated motor, and two ends of the motor main shaft are supported by bearings; the two ends of the integrated motor are each provided with an air inlet and an air guide structure, the air guide structures are located on the inner sides of the air inlets, the air guide structures are rotationally connected with the motor main shaft, the motor main shaft is provided with air exhaust structures synchronously rotating with the motor main shaft in the radial direction, and the two sides of the integrated motor are provided with air exhaust ports. The compressor and the integrated motor are in meshing transmission through a gear assembly, an air inlet and an air outlet are formed in the compressor, an oil inlet communicated with the oil way is further formed in the compressor, and an oil outlet of the oil way corresponds to the bearing close to the compressor.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and more specifically to an integrated compressor utilizing air cooling and heat dissipation. Background Art

[0002] The main function of the motor is to generate driving torque. As the power source of various machines, the compressor is a driven fluid machine that lifts low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. The compressor inhales low-temperature and low-pressure refrigerant gas from the suction pipe, compresses it through the motor, and then discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle.

[0003] The existing compressor uses oil cooling, the motor and the host are independently operated, the host and the motor are separately connected, connected by a coupling in the middle, and power is transmitted through the coupling, which increases the cost, and the heat dissipation effect of the existing heat dissipation method is not ideal.

[0004] Therefore, how to solve the problem of poor heat dissipation effect of the compressor is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an integrated compressor that utilizes air cooling to dissipate heat, and utilizes an air guide structure to concentrate air intake to accelerate the heat dissipation of the engine and enhance the effect of cooling the engine.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An integrated compressor utilizing air cooling for heat dissipation, comprising:

[0008] An integrated motor, wherein a motor main shaft is arranged inside the integrated motor, and both ends of the motor main shaft are supported by bearings, and both ends of the integrated motor are provided with air inlets and air guide structures, the air guide structure is located on the inner side of the air inlet, and the air guide structure is rotatably connected to the motor main shaft, an exhaust structure is arranged in the radial direction of the motor main shaft, and the exhaust structure rotates synchronously with the motor main shaft, and exhaust ports are arranged on both sides of the integrated motor;

[0009] The compressor is connected to the integrated motor. The compressor and the integrated motor are meshed and driven by a gear assembly. The compressor is provided with an air inlet and an air outlet. The compressor is also provided with an oil inlet connected to an oil circuit. The oil outlet of the oil circuit corresponds to a bearing close to the compressor.

[0010] Preferably, the integrated motor comprises:

[0011] A motor base, wherein a motor rear cover is provided at one end of the motor base away from the compressor, the motor rear cover is provided with a through hole for installing the motor main shaft, and a gear box cover is provided at one end of the motor base close to the compressor, and both the gear box cover and the motor rear cover are provided with air inlets;

[0012] The motor rotor is pressed onto the outer periphery of the motor main shaft, and exhaust structures are provided at both ends of the motor rotor, and the exhaust structures are fan impellers;

[0013] The motor stator coil is press-fitted onto the inner wall of the motor base, and a gap is left between the motor stator coil and the motor rotor.

[0014] Preferably, the integrated motor is connected to the compressor via a flange, the compressor comprises a low-pressure stage structure and a high-pressure stage structure, the low-pressure stage structure and the high-pressure stage structure are connected via a flange, a first-stage screw group is provided in the low-pressure stage structure, a second-stage screw group is provided in the high-pressure stage structure, and the main engine of the compressor is provided on the periphery of the gear assembly.

[0015] Preferably, the input end of the first-stage screw group is connected to the output end of the motor main shaft, and the output end of the first-stage screw group is connected to the input end of the second-stage screw group. Both the first-stage screw group and the second-stage screw group include a male screw and a female screw that move relative to each other, and the male screws of the first-stage screw group and the second-stage screw group are connected by a coupling.

[0016] Preferably, a first gear is radially provided at the output end of the motor shaft, and the first gear rotates synchronously with the motor shaft. A second gear is radially provided at the input end of the male screw of the first-stage screw group, and the second gear rotates synchronously with the male screw of the first-stage screw group. The first gear is meshed with the second gear.

[0017] Preferably, the bearings include deep groove ball bearings and cylindrical roller bearings. The deep groove ball bearings are arranged at the input end of the motor main shaft, and the cylindrical roller bearings are arranged at the output end of the motor main shaft. The cylindrical roller bearings are abutted against the first gear, and the cylindrical roller bearings are arranged close to the exhaust structure. A shaft seal is provided in the radial direction of the motor main shaft, and the shaft seal abuts against the cylindrical roller bearing. The oil outlet of the oil circuit is located between the cylindrical roller bearing and the shaft seal.

[0018] Preferably, the inner ring of the deep groove ball bearing is provided with a first pressure cover, and the outer ring of the deep groove ball bearing is provided with a second pressure cover. The deep groove ball bearing is fixed by the cooperation of the first pressure cover and the second pressure cover. The end of the first gear is provided with a third pressure cover to achieve axial positioning of the first gear.

[0019] Preferably, a gap is left between the second pressure cover and the end face opposite to the deep groove ball bearing, and the end face of the second pressure cover close to the deep groove ball bearing is provided with at least two recessed grooves, and the recessed grooves are provided with springs abutting the end face of the deep groove ball bearing, and the second pressure cover is fixed to the rear cover of the motor by bolts.

[0020] Preferably, the air guide structure is an annular air guide plate having an annular contraction surface.

[0021] Preferably, at least two oil leakage ports are provided at the bottom of the gear box cover, and at least two oil leakage ports are connected to the oil receiving pot through oil pipes.

[0022] The utility model provides an integrated compressor utilizing air cooling for heat dissipation, comprising an integrated motor and a compressor. Specifically, a motor main shaft is provided in the integrated motor, and both ends of the motor main shaft are supported by bearings, so as to reduce the friction when the integrated motor rotates at a high speed. Both ends of the integrated motor are provided with an air inlet and an air guide structure, and the air guide structure is located on the inner side of the air inlet, and the air guide structure is rotatably connected to the motor main shaft. By providing the air guide structure, the cold air entering the integrated motor from the air inlet can be concentrated to enter the center of the integrated motor, so that the flow rate of the cold air is faster, and the integrated motor can be better cooled.

[0023] An exhaust structure that rotates synchronously with the motor main shaft is provided in the radial direction of the motor main shaft. Exhaust ports are provided on both sides of the integrated motor. Hot air generated when the motor is working is discharged from the exhaust port through the exhaust structure. The compressor is connected to the integrated motor. The compressor and the integrated motor are meshed and driven by a gear assembly. An air inlet and an air outlet are provided on the compressor. The rotation of the motor main shaft drives the meshing transmission of the gear assembly to make the compressor run and squeeze the air to achieve the effect of compressing the air. The compressor is also provided with an oil inlet connected to the oil circuit. The oil outlet of the oil circuit corresponds to the bearing close to the compressor, so that the bearing can obtain continuous and clean lubricating oil to ensure lubrication and cooling of the bearing during long-term operation.

[0024] The integrated compressor that uses air cooling and heat dissipation is configured in the above manner, and an air guide structure is provided so that the cold air entering from both ends of the integrated motor can be better concentrated in the center through the air guide structure to accelerate the heat dissipation of the integrated motor and improve the cooling effect of the integrated motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 A cross-sectional view of a heat dissipating integrated compressor provided by the utility model from one perspective;

[0027] Figure 2 A structural schematic diagram of a heat dissipating integrated compressor provided by the utility model from one perspective;

[0028] Figure 3 A structural schematic diagram of the heat dissipating integrated compressor provided by the utility model from another perspective;

[0029] Figure 4 This is a cross-sectional view from another perspective of the heat dissipating integrated compressor provided by the utility model.

[0030] Reference numerals:

[0031] 1-integrated motor, 101-motor base, 102-motor rear cover, 103-gear box cover, 104-motor rotor, 105-motor stator coil;

[0032] 2- Motor spindle;

[0033] 3-Bearings;

[0034] 4- Air inlet;

[0035] 5- Wind guide structure;

[0036] 6- Exhaust structure;

[0037] 7-Exhaust vent;

[0038] 8-compressor, 81-air inlet, 82-air outlet, 83-first stage screw group, 84-second stage screw group, 85-main engine;

[0039] 9-gear assembly, 91-first gear, 92-second gear;

[0040] 10- shaft seal;

[0041] 11- first gland;

[0042] 12- second gland;

[0043] 13-The third gland. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] The core of the utility model is to provide an integrated compressor that utilizes air cooling to dissipate heat, and utilizes an air guide structure 5 to concentrate air intake to accelerate the heat dissipation of the engine and enhance the effect of cooling the engine.

[0046] Please refer to Figure 1 , Figure 2 and Figure 3 An integrated compressor utilizing air cooling for heat dissipation includes an integrated motor 1 and a compressor 8.

[0047] Specifically, a motor main shaft 2 is provided in the integrated motor 1, and both ends of the motor main shaft 2 are supported by bearings 3, which can reduce the friction when the integrated motor 1 rotates at high speed. Both ends of the integrated motor 1 are provided with an air inlet 4 and an air guide structure 5. The air guide structure 5 is located on the inner side of the air inlet 4, and the air guide structure 5 is rotatably connected to the motor main shaft 2. By setting the air guide structure 5, the cold air entering the integrated motor 1 from the air inlet 4 can be concentrated to enter the center of the integrated motor 1, so that the flow rate of the cold air is faster, and the integrated motor 1 can be better cooled.

[0048] An exhaust structure 6 that rotates synchronously with the motor main shaft 2 is provided in the radial direction of the motor main shaft 2, and exhaust ports 7 are provided on both sides of the integrated motor 1. The hot air generated when the motor is working is discharged from the exhaust ports 7 through the exhaust structure 6. The compressor 8 is connected to the integrated motor 1, and the compressor 8 and the integrated motor 1 are meshed and transmitted through a gear assembly 9. The compressor 8 is provided with an air inlet 81 and an air outlet 82. The rotation of the motor main shaft 2 drives the meshing transmission of the gear assembly 9 to make the compressor 8 run and squeeze the air to achieve the effect of compressing the air. The compressor 8 is also provided with an oil inlet connected to the oil circuit, and the oil outlet of the oil circuit corresponds to the bearing 3 close to the compressor 8, so that the bearing 3 can obtain continuous and clean lubricating oil to ensure lubrication and cooling of the bearing 3 during long-term operation.

[0049] The integrated compressor using air cooling and heat dissipation arranged in the above manner is provided with an air guide structure 5 so that the cold air entering from both ends of the integrated motor 1 can be better concentrated in the center through the air guide structure 5 to accelerate the heat dissipation of the integrated motor 1 and improve the cooling effect of the integrated motor 1.

[0050] In the above embodiment, the integrated motor 1 includes a motor base 101, a motor rotor 104 and a motor stator coil 105. A motor back cover 102 is provided at the end of the motor base 101 away from the compressor 8. The motor back cover 102 is provided with a through hole for installing the motor main shaft 2. A gear box cover 103 is provided at the end of the motor base 101 close to the compressor 8. The gear box cover 103 and the motor back cover 102 are both provided with an air inlet 4. The motor rotor 104 is crimped to the outer periphery of the motor main shaft 2. Exhaust structures 6 are provided at both ends of the motor rotor 104. The exhaust structure 6 is a wind impeller. The motor stator coil 105 is pressed onto the inner wall of the motor base 101, and a gap is left between the motor stator coil 105 and the motor rotor 104.

[0051] It should be noted that, when the integrated motor 1 is connected to a 380V three-phase power supply, the motor stator coil 105 is energized to form an electromagnetic field, and the motor rotor 104 rotates after inducing the electromagnetic field. The integrated motor 1 generates heat when working, and wind impellers are installed at both ends of the motor rotor 104. When the integrated motor 1 is working, the wind impellers also play a role in heat dissipation. Cold air is sucked in from the air inlets 4 of the motor rear cover 102 and the gear box cover 103 at both ends of the integrated motor 1, and the heat generated by the motor stator coil 105 is discharged from the exhaust vents 7 on both sides of the integrated motor 1.

[0052] The motor stator coil 105 is pressed onto the motor base 101. The motor rotor 104 is a magnet. The motor rotor 104 is pressed together with the motor main shaft 2. The motor main shaft 2 is supported by bearings 3 at both ends. When the motor stator coil 105 is energized, a magnetic field is generated to generate a cutting force to drive the motor main shaft 2 to rotate. When the integrated motor 1 is in operation, a large amount of heat is generated. Cold air is sucked in from the air inlet 4 of the motor back cover 102 and the gear box cover 103 at both ends of the integrated motor 1. The air guide structure 5 at both ends of the integrated motor 1 allows the cold air to enter from the center in a better concentrated manner, with a faster flow rate and a better cooling effect. The impeller rotates to discharge the hot air from the exhaust port 7.

[0053] Among them, the present application utilizes the exhaust structure 6, the motor rotor 104 and the motor stator coil 105 to achieve air cooling, but in actual life, there is no limitation to this as long as the above-mentioned technical effects can be achieved.

[0054] In the above situation, the integrated motor 1 is connected to the compressor 8 through a flange, and the compressor 8 includes a low-pressure stage structure and a high-pressure stage structure, and the low-pressure stage structure and the high-pressure stage structure are connected through a flange. A first-stage screw group 83 is provided in the low-pressure stage structure, and a second-stage screw group 84 is provided in the high-pressure stage structure. The main engine 85 of the compressor 8 is arranged on the outer periphery of the gear assembly 9.

[0055] It can be understood that after the motor main shaft 2 rotates, it is driven by the gear rotating assembly to drive the first-stage screw group 83 to rotate, and air is sucked into the inner cavity of the main unit 85 from the air inlet 81. The first-stage screw group 83 squeezes the air, which is compressed by the first-stage screw group 83 and discharged into the inner cavity of the flange, and enters the suction end of the second-stage screw group 84. The second-stage screw group 84 is compressed and discharged from the air outlet 82. The first-stage compression is the low-pressure stage, and the second-stage compression is the high-pressure stage. The air enters the low-pressure stage from the air inlet 81, is compressed by the first-stage screw group 83, enters the middle flange, enters the high-pressure second-stage screw group 84, and is compressed and discharged through the air outlet 82.

[0056] The power of the product is that the integrated motor 1 is powered on, the motor main shaft 2 rotates to drive the gear assembly 9 to move, and the gear assembly 9 drives the screw to rotate to squeeze the air, thereby achieving the purpose of compressing the air.

[0057] In this embodiment, the compressor 8 and the integrated motor 1, the first-stage screw group 83 and the second-stage screw group 84 are all connected by flanges, but in actual life, there is no restriction on the connection method between the integrated motor 1 and the compressor 8, the first-stage screw group 83 and the second-stage screw group 84, as long as the above-mentioned technical effect can be achieved.

[0058] Furthermore, the input end of the first-stage screw group 83 is connected to the output end of the motor main shaft 2, and the output end of the first-stage screw group 83 is connected to the input end of the second-stage screw group 84. The first-stage screw group 83 and the second-stage screw group 84 both include a male screw and a female screw that move relative to each other, and the male screws of the first-stage screw group 83 and the second-stage screw group 84 are connected by a coupling.

[0059] It should be noted that after the motor main shaft 2 rotates, it is transmitted through the gear rotation assembly to drive the first-stage screw group 83 to rotate, so that the male and female screws of the first-stage screw group 83 move relative to each other, squeezing the air. The air is sucked into the inner cavity of the main engine 85 from the air inlet 81, and is compressed by the male and female screws of the first-stage screw group 83 and discharged into the inner cavity of the flange, and enters the input end of the second-stage screw group 84. The male screw of the first-stage screw group 83 is directly connected to the male screw of the second-stage screw group 84 by a coupling, and the male and female screws of the second-stage screw group 84 are compressed and discharged from the air outlet 82.

[0060] Please refer to Figure 4 A first gear 91 is provided radially at the output end of the motor main shaft 2, and the first gear 91 rotates synchronously with the motor main shaft 2. A second gear 92 is provided radially at the input end of the male screw of the first-stage screw group 83, and the second gear 92 rotates synchronously with the male screw of the first-stage screw group 83. The first gear 91 is meshed with the second gear 92.

[0061] It can be understood that the motor main shaft 2 rotates to drive the first gear 91 to rotate synchronously, and the first gear 91 is meshed with the second gear 92 to drive the male screw of the first-stage screw group 83 to rotate synchronously, and the male screw and the female screw of the first-stage screw group 83 move relative to each other to squeeze the air. At the same time, the male screw of the first-stage screw group 83 drives the male screw of the second-stage screw group 84 to rotate synchronously, and the male screw and the female screw of the second-stage screw group 84 move relative to each other to squeeze the air for a second time, thereby realizing the compression of the air.

[0062] Based on the above embodiment, the bearing 3 includes a deep groove ball bearing and a cylindrical roller bearing. The deep groove ball bearing is arranged at the input end of the motor main shaft 2, and the cylindrical roller bearing is arranged at the output end of the motor main shaft 2. The cylindrical roller bearing is abutted against the first gear 91, and the cylindrical roller bearing is arranged close to the exhaust structure 6. A shaft seal 10 is provided in the radial direction of the motor main shaft 2, and the shaft seal 10 is abutted against the cylindrical roller bearing, and the oil outlet of the oil circuit is located between the cylindrical roller bearing and the shaft seal 10.

[0063] It should be noted that the output end of the motor main shaft 2 is equipped with a shaft seal 10, which forms a sealed oil chamber with the main engine 85. Two bearings 3 are designed on the motor main shaft 2. The deep groove ball bearing can be easily disassembled and cooled by grease. The cylindrical roller bearing uses a cooling oil circuit for cooling and lubrication to increase the service life of the cylindrical roller bearing. After the oil circuit is filtered by the oil filter, high-quality lubricating oil always lubricates the cylindrical roller bearing and the shaft seal 10, so that the whole machine runs stably and smoothly to ensure the service life of the compressor 8. The cylindrical roller bearing can be lubricated and cooled, and the shaft seal 10 can be lubricated.

[0064] Among them, in this embodiment, the bearing 3 on the motor main shaft 2 is arranged in this way, but in actual life, there is no limitation to this, as long as the above technical effect can be achieved.

[0065] In the above embodiment, the inner ring of the deep groove ball bearing is provided with a first pressure cover 11, and the outer ring of the deep groove ball bearing is provided with a second pressure cover 12. The deep groove ball bearing is fixed by the cooperation of the first pressure cover 11 and the second pressure cover 12. The end of the first gear 91 is provided with a third pressure cover 13 to realize axial positioning of the first gear 91.

[0066] It is understandable that because the first gear 91 generates an axial thrust, if the force in this direction is not relieved, it will affect the normal operation of the first gear 91 in the long term. The integrated motor 1 drives the first gear 91 to operate through the middle motor shaft 2. The design of the deep groove ball bearing and the cylindrical roller bearing is to increase the axial bearing capacity of the motor shaft 2 to balance and offset the axial force generated by the operation of the first gear 91.

[0067] Among them, the first gear 91 is installed at the output end of the motor main shaft 2 and fastened with the third pressure cover 13 and screws. The cylindrical roller bearing and the first gear 91 can obtain continuous clean lubricating oil in the sealed oil chamber to ensure lubrication and cooling during long-term operation. The deep groove ball bearing is lubricated with high-speed lubricating grease.

[0068] Preferably, compared with the existing threaded connection method, arranging bolt connection in the radial direction of the gland has a more stable effect.

[0069] As a preferred embodiment, a gap is left between the end face of the second pressure cover 12 and the deep groove ball bearing. The end face of the second pressure cover 12 close to the deep groove ball bearing is provided with at least two recessed grooves, and the recessed grooves are provided with springs abutting the end face of the deep groove ball bearing. The second pressure cover 12 is fixed to the motor rear cover 102 by bolts.

[0070] It should be noted that the first gland 11 is pressed on the inner ring of the deep groove ball bearing to radially center the motor main shaft 2, improve the dynamic balance of the motor rotor 104 when running at high speed, reduce the vibration value of the motor and the screw compressor 8 head when working, and greatly improve the life of the head bearing 3. By setting a spring, the second gland 12 and the deep groove ball bearing can be prevented from deviating from each other when the deep groove ball bearing rotates.

[0071] In the above case, the air guide structure 5 is a circular air guide plate having a circular contraction surface.

[0072] It can be understood that the air guide structure 5 has a structure that contracts radially inward along the motor main shaft 2 to achieve the concentration of cold air entering the integrated motor 1. In actual life, there is no restriction on the specific shape of the air guide structure 5 as long as the above-mentioned technical effect can be achieved.

[0073] In the above embodiment, at least two oil leakage ports are provided at the bottom of the gear box cover 103, and at least two oil leakage ports are connected to the oil receiving pot through oil pipes.

[0074] It should be noted that an oil circuit is drawn from the compressor 8, and the oil enters the oil inlet through the oil circuit, and enters the oil seal and the cylindrical roller bearing to play a role in lubrication and cooling. The oil seal will leak after a long time of use. By setting two oil leakage ports, the oil can drip down through the oil leakage ports. By setting an oil pipe to connect with the oil receiving pot, it can be maintained and cleaned after a period of time.

[0075] As a preferred embodiment, an oil leakage port is provided to solve the oil leakage problem of the internal oil seal and the shaft seal 10. The leakage problem can be solved without disassembling the machine. The oil leakage port can be connected to an oil return pipe to recover the leaked oil into the compressor 8 for reuse.

[0076] Among them, the oil leakage port can be opened once a week or once a month to observe whether the integrated motor 1 has oil leakage. If there is oil leakage, a pipe can be added to connect to the oil leakage inlet of the compressor 8. When the main unit 85 is running, the oil will be sucked back into the main unit 85, so it can be recycled without disassembly.

[0077] In summary, the utility model provides an integrated compressor that utilizes air cooling to dissipate heat, an integrated design structure of a compressor 8 and an integrated motor 1, an air guide structure 5 is added at both ends of the motor main shaft 2, and the air guide structure 5 is utilized to concentrate the air intake, thereby accelerating the heat dissipation of the engine and improving the cooling effect.

[0078] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0079] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0080] The above is a detailed introduction to an integrated compressor using air cooling provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An integrated compressor utilizing air cooling for heat dissipation, characterized in that: include: An integrated motor (1), wherein a motor main shaft (2) is provided inside the integrated motor (1), both ends of the motor main shaft (2) are supported by bearings (3), both ends of the integrated motor (1) are provided with air inlets (4) and air guide structures (5), the air guide structures (5) are located on the inner side of the air inlet (4), and the air guide structures (5) are rotatably connected to the motor main shaft (2), an air exhaust structure (6) is provided in the radial direction of the motor main shaft (2), the air exhaust structure (6) rotates synchronously with the motor main shaft (2), and air exhaust ports (7) are provided on both sides of the integrated motor (1); A compressor (8) is connected to the integrated motor (1); the compressor (8) and the integrated motor (1) are meshed and driven via a gear assembly (9); an air inlet (81) and an air outlet (82) are provided on the compressor (8); an oil inlet connected to an oil circuit is also provided on the compressor (8); the oil outlet of the oil circuit corresponds to the bearing (3) close to the compressor (8).

2. The integrated compressor utilizing air cooling and heat dissipation according to claim 1, characterized in that: The integrated motor (1) comprises: A motor base (101), wherein a motor rear cover (102) is provided at one end of the motor base (101) away from the compressor (8), the motor rear cover (102) being provided with a through hole for mounting the motor main shaft (2), and a gear box cover (103) is provided at one end of the motor base (101) close to the compressor (8), and the gear box cover (103) and the motor rear cover (102) are both provided with the air inlet (4); The motor rotor (104) is crimped onto the outer circumference of the motor main shaft (2), and the exhaust structure (6) is provided at both ends of the motor rotor (104), and the exhaust structure (6) is a wind impeller; The motor stator coil (105) is press-fitted onto the inner wall of the motor base (101), and a gap is left between the motor stator coil (105) and the motor rotor (104).

3. The integrated compressor utilizing air cooling and heat dissipation according to claim 2, characterized in that: The integrated motor (1) is connected to the compressor (8) via a flange, the compressor (8) comprises a low-pressure stage structure and a high-pressure stage structure, the low-pressure stage structure and the high-pressure stage structure are connected via the flange, a first-stage screw group (83) is provided in the low-pressure stage structure, a second-stage screw group (84) is provided in the high-pressure stage structure, and a main engine (85) of the compressor (8) is provided on the periphery of the gear assembly (9).

4. The integrated compressor utilizing air cooling and heat dissipation according to claim 3, characterized in that: The input end of the first-stage screw group (83) is connected to the output end of the motor main shaft (2), and the output end of the first-stage screw group (83) is connected to the input end of the second-stage screw group (84). The first-stage screw group (83) and the second-stage screw group (84) both comprise a male screw and a female screw that move relative to each other, and the male screws of the first-stage screw group (83) and the second-stage screw group (84) are connected via a coupling.

5. The integrated compressor utilizing air cooling and heat dissipation according to claim 4, characterized in that: A first gear (91) is provided in the radial direction of the output end of the motor main shaft (2), and the first gear (91) rotates synchronously with the motor main shaft (2). A second gear (92) is provided in the radial direction of the input end of the male screw of the first-stage screw group (83), and the second gear (92) rotates synchronously with the male screw of the first-stage screw group (83). The first gear (91) is meshed with the second gear (92).

6. The integrated compressor utilizing air cooling and heat dissipation according to claim 5, characterized in that: The bearing (3) comprises a deep groove ball bearing and a cylindrical roller bearing, the deep groove ball bearing being arranged at the input end of the motor main shaft (2), the cylindrical roller bearing being arranged at the output end of the motor main shaft (2), the cylindrical roller bearing being in contact with the first gear (91), and the cylindrical roller bearing being arranged close to the exhaust structure (6), a shaft seal (10) being arranged in the radial direction of the motor main shaft (2), the shaft seal (10) being in contact with the cylindrical roller bearing, and the oil outlet of the oil circuit being located between the cylindrical roller bearing and the shaft seal (10).

7. The integrated compressor utilizing air cooling and heat dissipation according to claim 6, characterized in that: The inner ring of the deep groove ball bearing is provided with a first pressure cover (11), and the outer ring of the deep groove ball bearing is provided with a second pressure cover (12). The deep groove ball bearing is fixed by the cooperation of the first pressure cover (11) and the second pressure cover (12). The end of the first gear (91) is provided with a third pressure cover (13) to achieve axial positioning of the first gear (91).

8. The integrated compressor utilizing air cooling and heat dissipation according to claim 7, characterized in that: A gap is left between the end faces of the second pressure cover (12) and the deep groove ball bearing. The second pressure cover (12) is provided with at least two recessed grooves near the end face of the deep groove ball bearing. A spring is provided in the recessed groove to abut against the end face of the deep groove ball bearing. The second pressure cover (12) is fixed to the motor rear cover (102) by bolts.

9. The integrated compressor utilizing air cooling and heat dissipation according to claim 8, characterized in that: The air guide structure (5) is a circular air guide plate having a circular contraction surface.

10. The integrated compressor using air cooling according to any one of claims 2 to 9, characterized in that: At least two oil leakage ports are provided at the bottom of the gear box cover (103), and at least two of the oil leakage ports are connected to an oil receiving pot via an oil pipe.

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