Self-cooling device of magnetic suspension air compressor

Abstract

The utility model relates to the technical field of air compressors, in particular to a self-cooling device of a magnetic suspension air compressor, which comprises a driving motor, and an output shaft of the driving motor is coaxially and fixedly provided with a first turbine; the driving motor is sleeved with a heat dissipation cover, and a heat dissipation cavity is formed between the inner surface of the heat dissipation cover and the outer surface of the driving motor. The heat dissipation cavity is connected with the cooling cavity through a second pipeline and a third pipeline. And a second turbine is arranged in the cooling cavity. According to the invention, hot air in the cooling cavity can be pumped out, is cooled by the radiator and then is conveyed back to the cooling cavity, so that the effect of cooling the driving motor is achieved. The driving motor drives the first turbine and the sun gear to rotate, and then the sun gear drives the planetary gears to rotate, so that the second turbine rotates. The effect that one driving source drives the two turbines to rotate at different rotating speeds is achieved, and the purpose of saving energy is achieved while self-cooling is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of air compressors, in particular to a self-cooling device of a magnetic suspension air compressor. BACKGROUND

[0002] At present, the magnetic suspension air compressor is widely applied in the fields of refrigeration and air supply due to its high efficiency, energy saving and low noise. However, a large amount of heat is generated during the operation of the magnetic suspension air compressor, and if the heat cannot be cooled in time and effectively, the working efficiency and service life of the magnetic suspension air compressor will be seriously affected. The traditional cooling method has the problems of low heat exchange efficiency, high energy consumption and complex maintenance, therefore, it is particularly important to develop a motor cooling device which is high in efficiency, energy saving and easy to maintain.

[0003] Through retrieval, the Chinese patent publication No. CN222025933U discloses an air compressor water circulation cooling device, which comprises a heating box, a preheating box and a water storage box, first capillary tube nets and second capillary tube nets are arranged in the heating box and the preheating box respectively, the first capillary tube nets and the second capillary tube nets are connected with each other through first connecting pipes, and the heating box and the preheating box are connected with each other through water guide pipes. The air compressor water circulation cooling device is provided with the heating box and the preheating box, and the first capillary tube nets and the second capillary tube nets are arranged in the heating box and the preheating box respectively.

[0004] In view of the related technologies in the above, the inventors find that the technology drives the flow of the heat exchange medium through an additional driving source, which causes additional energy consumption. CONTENT OF THE UTILITY MODEL

[0005] In order to realize self-cooling of the motor, the application provides a self-cooling device of a magnetic suspension air compressor.

[0006] The self-cooling device of the magnetic suspension air compressor provided by the application adopts the following technical scheme: a driving motor is arranged, a first turbine is coaxially and fixedly arranged on an output shaft of the driving motor; the first turbine is driven by the driving motor to rotate in a blowing cavity; the blowing cavity is a cylinder with closed two ends; an air inlet and an air outlet are arranged on a peripheral wall of the blowing cavity, and the air outlet is connected with a compressed gas tank through a first pipeline; a heat dissipation cover is arranged outside the driving motor, and a heat dissipation cavity is formed between an inner surface of the heat dissipation cover and an outer surface of the driving motor; the heat dissipation cavity is connected with a cooling cavity through a second pipeline and a third pipeline respectively; a second turbine is arranged in the cooling cavity, and the second turbine is driven by the driving motor. The driving motor drives the first turbine in the blowing cavity to rotate, and air is blown from the air inlet into the compressed gas tank through the air outlet.

[0007] Optionally, the output shaft is coaxially provided with a sun gear at one end away from the driving motor; the sun gear is engaged with a plurality of planetary gears, and the plurality of planetary gears are engaged with a ring gear. The sun gear drives the plurality of planetary gears to revolve around the center of the ring gear, and simultaneously drives the planetary gears to rotate around their own axes.

[0008] Optionally, the outer wall of the ring gear is fixedly connected with the inner wall of the cooling cavity. The fixed connection makes the planetary gears rotate more stably.

[0009] Optionally, each planetary gear is coaxially provided with a connecting rod at one end, and each connecting rod is rotationally connected with a transmission part; the transmission part is provided with a transmission rod at the center of the axis, and the transmission rod is fixedly connected with the second turbine coaxially.

[0010] Optionally, the second pipeline is an exhaust pipeline of the cooling cavity, and the third pipeline is an air inlet pipeline of the cooling cavity; the second pipeline is connected with the cooling cavity at an end away from the output shaft, and the third pipeline is connected with the cooling cavity at an end close to the output shaft.

[0011] Optionally, the heat dissipation mechanism comprises an air inlet end and an air outlet end; a plurality of thin tubes are connected between the air inlet end and the air outlet end.

[0012] Optionally, the heat dissipation mechanism is exposed to the air as a whole, so as to facilitate heat dissipation.

[0013] Optionally, the fan outlet is directed to the thin tubes. The fan enhances the flowability of the air around the thin tubes.

[0014] In summary, the present application has the following beneficial technical effects:

[0015] 1. The utility model discloses a heat dissipation cavity, a cooling cavity and other components are arranged, hot air in the cooling cavity is extracted, and after heat dissipation through the radiator, the hot air is transported back to the cooling cavity, so that the driving motor is cooled and cooled.

[0016] 2. The utility model discloses a sun gear and planetary gear and other components are arranged, the first turbine and the sun gear are driven to rotate by the driving motor, a plurality of planetary gears are driven to rotate by the sun gear, and the second turbine is rotated. One driving source drives two turbines to rotate at different speeds, and the self-cooling and energy-saving purposes are realized. DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram in the embodiment of the present application;

[0018] Figure 2 It is the internal structure schematic diagram in the embodiment of the present application;

[0019] Figure 3 It is the structure schematic diagram of main operation components in the embodiment of the present application.

[0020] Figure 4 This is a top view of the motor structure in an embodiment of this application;

[0021] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure along direction A in the middle;

[0022] Figure 6 This is a schematic diagram of the heat dissipation mechanism in an embodiment of this application;

[0023] Figure 7 This is a schematic diagram of the planetary gear connection relationship in an embodiment of this application.

[0024] Reference numerals: 1. Drive motor; 2. Output shaft; 3. First turbine; 4. Blower chamber; 5. First pipe; 6. Compressed air tank; 7. Heat sink; 8. Heat dissipation chamber; 9. Second pipe; 10. Third pipe; 11. Cooling chamber; 12. Second turbine; 13. Sun gear; 14. Planetary gear; 15. Ring gear; 16. Connecting rod; 17. Transmission unit; 18. Transmission rod; 19. Inlet end; 20. Outlet end; 21. Thin tube; 22. Fan. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0026] This application discloses a self-cooling device for a magnetic levitation air compressor. For example... Figure 1 As shown, the device includes a drive motor 1, and a first turbine 3 is coaxially fixedly mounted on the output shaft 2 of the drive motor 1. The first turbine 3 is driven by the drive motor 1 to rotate within a blower chamber 4. The blower chamber 4 is a cylindrical body closed at both ends. An air inlet and an air outlet are provided on the peripheral wall of the blower chamber 4. The air outlet is connected to a compressed air tank 6 through a first pipe 5. A heat sink 7 is fitted around the drive motor 1, and a heat dissipation cavity 8 is formed between the inner surface of the heat sink 7 and the outer surface of the drive motor 1. The heat dissipation cavity 8 is connected to a cooling cavity 11 through a second pipe 9 and a third pipe 10, respectively. A second turbine 12 is disposed within the cooling cavity 11 and is driven by the drive motor 1.

[0027] In this embodiment, the first turbine 3 inside the blower chamber 4 is driven to rotate by the drive motor 1, and air is blown from the air inlet and through the air outlet into the compressed air tank 6.

[0028] Since air compression requires the drive motor 1 to run at high speed, the motor will get very hot after running at high speed for a long time. The drive motor 1 starts the second turbine 12 to rotate, drawing the air in the heat dissipation chamber 8 into the cooling chamber 11, and then blowing the air in the cooling chamber 11 into the heat dissipation chamber 8, thereby achieving heat exchange and cooling of the drive motor 1.

[0029] Since the first turbine 3 requires a high rotational speed to compress air, while the second turbine 12 does not, in this invention, a sun gear 13 is coaxially arranged on the end face of the output shaft 2 away from the drive motor 1; the sun gear 13 meshes with multiple planet gears 14, and the multiple planet gears 14 mesh with a gear ring 15; the outer wall of the gear ring 15 is fixedly connected to the inner wall of the cooling chamber 11; a connecting rod 16 is coaxially arranged on the end face of each planet gear 14, and each connecting rod 16 is rotatably connected to a transmission part 17; a transmission rod 18 is arranged on the axis of the transmission part 17, and the transmission rod 18 is coaxially fixedly connected to the second turbine 12;

[0030] In this embodiment, the output shaft 2 of the drive motor 1 drives the first turbine 3 to rotate, which in turn drives the sun gear 13 to rotate. The sun gear 13 meshes with and drives multiple planet gears 14 to revolve around the axis of the sun gear 13. At the same time, the ring gear 15 meshes with and drives multiple planet gears 14 to rotate around its own axis. When the sun gear 13 rotates once, the first turbine 3 rotates once. When the sun gear 13 drives multiple planet gears 14 to revolve around the ring gear 15 once, the second turbine 12 can rotate once. Therefore, the rotational speed of the first turbine 3 is greater than the rotational speed of the second turbine 12.

[0031] To further improve the cooling effect of the cooling chamber 11, in this utility model, the second pipe 9 is the exhaust pipe of the cooling chamber 11, and the third pipe 10 is the intake pipe of the cooling chamber 11; the second pipe 9 is connected to the cooling chamber 11 at the end away from the output shaft 2, and the third pipe 10 is connected to the cooling chamber 11 at the end close to the output shaft 2.

[0032] To further improve the cooling effect, this utility model also includes a heat dissipation mechanism; the heat dissipation mechanism includes an air inlet 19 and an air outlet 20; a plurality of thin tubes 21 are connected between the air inlet 19 and the air outlet 20; the entire heat dissipation mechanism is exposed to the air;

[0033] In this embodiment, the air drawn from the cooling chamber 11 by the second pipe 9 through the radiator enters the thin pipe 21 through the air inlet 19, and completes heat exchange with the outside air through the thin pipe 21. After heat exchange, the air enters the heat dissipation chamber 8, and is then blown into the cooling chamber 11 by the second turbine 12.

[0034] To further enhance the heat dissipation effect of the radiator, a fan 22 is also provided in this utility model, and the air outlet of the fan 22 faces the thin tube 21;

[0035] In this embodiment, the fan 22 blows away the hot air around the multiple thin tubes 21 and blows room temperature air toward the multiple thin tubes 21, thereby improving the heat dissipation effect of the radiator.

[0036] The implementation principle of the self-cooling device of the magnetic suspension air compressor according to the embodiment of the application is as follows:

[0037] The first turbine 3 in the air-blowing cavity 4 is driven to rotate by the driving motor 1, so that air is blown from the air inlet into the compressed air tank 6 through the air outlet;

[0038] After the driving motor 1 is operated at high speed for a long time, the motor generates a large amount of heat;

[0039] The first turbine 3 and the sun gear 13 are driven to rotate by the output shaft 2 of the driving motor 1, the sun gear 13 meshes with the plurality of planetary gears 14 to drive the planetary gears 14 to revolve around the sun gear 13, meanwhile, the ring gear 15 meshes with the plurality of planetary gears 14 to drive the planetary gears 14 to rotate around their own axes, the plurality of planetary gears 14 revolve around the sun gear 13, the connecting rod 16 drives the transmission part 17 to rotate, the transmission part 17 drives the transmission rod 18 to rotate, and the transmission rod 18 drives the second turbine 12 to rotate;

[0040] The second turbine 12 rotates to draw the air in the heat-dissipating cavity 8 into the air inlet end 19, the air enters the plurality of thin tubes 21, exchanges heat with the external air through the thin tubes 21, enters the heat-dissipating cavity 8 after the heat exchange, and is blown into the cooling cavity 11 by the second turbine 12, so as to complete the heat dissipation of the driving motor 1.

[0041] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A self-cooling device of a magnetic levitation air compressor comprising a drive motor, characterized in that: The output shaft of the driving motor is coaxially and fixedly provided with a first turbine; the first turbine is driven by the driving motor to rotate in the air blowing cavity; the air blowing cavity is a cylinder with closed two ends; the air blowing cavity is provided with an air inlet and an air outlet on the peripheral wall; the air outlet is connected with the compressed air tank through a first pipeline; the driving motor is externally sleeved with a heat dissipation cover; a heat dissipation cavity is formed between the inner surface of the heat dissipation cover and the outer surface of the driving motor; the heat dissipation cavity is connected with a cooling cavity through a second pipeline and a third pipeline respectively; the cooling cavity is provided with a second turbine driven by the driving motor.

2. A self-cooling device for a magnetic levitation air compressor according to claim 1, characterized in that: The output shaft is coaxially provided with a sun gear at the end face away from the driving motor; the sun gear is engaged with a plurality of planetary gears; the plurality of planetary gears are engaged with a gear ring.

3. A self-cooling device for a magnetic levitation air compressor according to claim 2, characterized in that: The outer wall of the gear ring is fixedly connected with the inner wall of the cooling cavity.

4. A self-cooling device for a magnetic levitation air compressor according to claim 2, characterized in that: Each planetary gear end face is coaxially provided with a connecting rod; each connecting rod is rotatably connected with a transmission part; the transmission part is provided with a transmission rod; the transmission rod is coaxially and fixedly connected with the second turbine.

5. A self-cooling device for a magnetic levitation air compressor according to claim 1, characterized in that: The second pipeline is an air exhaust pipeline of the cooling cavity; the third pipeline is an air inlet pipeline of the cooling cavity; the second pipeline is connected with the cooling cavity at the end away from the output shaft; the third pipeline is connected with the cooling cavity at the end close to the output shaft.

6. A self-cooling device for a magnetic levitation air compressor according to claim 1, characterized in that: A heat dissipation mechanism is further connected; the heat dissipation mechanism comprises an air inlet end and an air outlet end; a plurality of thin tubes are connected between the air inlet end and the air outlet end.

7. A self-cooling device for a magnetic levitation air compressor according to claim 6, characterized in that: The heat dissipation mechanism is exposed in the air as a whole.

8. A self-cooling device for a magnetic levitation air compressor according to claim 1, characterized in that: A fan is further provided; the air outlet of the fan faces the thin tubes.

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