CN205178773U - Submergence formula liquid cooling structure of keeping apart rotor among magnetic levitation motor - Google Patents
Submergence formula liquid cooling structure of keeping apart rotor among magnetic levitation motor Download PDFInfo
- Publication number
- CN205178773U CN205178773U CN201521015909.0U CN201521015909U CN205178773U CN 205178773 U CN205178773 U CN 205178773U CN 201521015909 U CN201521015909 U CN 201521015909U CN 205178773 U CN205178773 U CN 205178773U
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- rotor
- sheath
- stator
- magnetic suspension
- casing
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Abstract
The utility model discloses a submergence formula liquid cooling structure of keeping apart rotor among magnetic levitation motor, which comprises a housing, magnetic suspension bearing, rotor and stator, magnetic suspension bearing and stator support in the casing respectively, the rotor wear to locate in the magnetic suspension bearing with the stator in, it still includes fluid container and sheath, the sheath is the one end opening, the inclosed beta -barrel structure of the other end, the sheath cover is located between rotor and the magnetic suspension bearing and between rotor and the stator, the open end of sheath is stretched and is linked to each other with the fluid container outside the casing, and the inner chamber of sheath link up with the inner chamber of fluid container mutually, the left end of rotor is stretched in the inner chamber of fluid container, on the casing and be located and be equipped with the coolant liquid runner on one side of magnetic suspension bearing one side and the stator respectively, be equipped with inlet and liquid outlet on the casing wall, inlet and liquid outlet all are linked together with the coolant liquid runner. The utility model discloses heat radiating area is big, dispels the heat, and the rotor is contact chilling liquid not, can not take place the loss that rubs, and the rotor can not receive the corruption of coolant liquid.
Description
Technical field:
The utility model relates to a kind of magnetic suspension motor, particularly relates to the immersion liquid cooling structure of isolating rotor in a kind of magnetic suspension motor.
Background technology:
The cooling of motor has air-cooled and liquid cooling two kinds of modes usually, and wherein liquid cooling heat exchange efficiency is high, power consumption is little, so apply more on heavy-duty motor.But due to large about 1000 times of the ratio of viscosities air of liquid, the rotor submergence of High Rotation Speed can not be cooled in a liquid, so fluid-cooled electrical machine great majority adopt jacket structure for water.Because the caloric requirement of stator in jacket structure for water just can enter cooling fluid by the heat transfer of coil, iron core, casing and the heat convection of water jacket successively, therefore the Temperature Difference Ratio of cooling fluid and stator coil is comparatively large, not high to stator cooling effect.
In order to improve cooling effect, part motor utilizes nozzle cooling fluid to be directly sprayed onto stator surface and cools, Liquid injection cooling structure that Here it is.The cooling fluid that Liquid injection cooling uses can not corrosion electrical motor stator material or cause short circuit, and usual is the lubricating oil or conduction oil that viscosity is lower, and be therefore otherwise known as Oil injection cooling.Oil injection cooling can cool stator effectively, but cooling fluid relies on gravity along piece surface flowing and converges bottom motor casing, and therefore cooling fluid is comparatively slow in motor internal flowing, and easily oxidation by air, easily forms foam.Cooling fluid out pollutes easily via shaft sealing leakage simultaneously.
Optimal cooling condition is immersed in cooling fluid by heating parts such as stators, and drive liquid circulation flowing with pump.But in most of motor, also can submergence rotor while cooling fluid submergence stator, thus cause liquid and rotor surface frictional heating.
Therefore, necessary the deficiency solving prior art is improved to prior art.
Utility model content:
The utility model provides the immersion liquid cooling structure of isolating rotor in a kind of magnetic suspension motor to solve above-mentioned prior art Problems existing.
The technical scheme that the utility model adopts has: the immersion liquid cooling structure of isolating rotor in a kind of magnetic suspension motor, comprise casing, magnetic suspension bearing, rotor and stator, described magnetic suspension bearing and stator are supported in casing respectively, rotor is arranged in magnetic suspension bearing and in stator, it also comprises fluid container and sheath, described sheath is one end open, the barrel-like structure that the other end is airtight, sheath is sheathed between rotor and magnetic suspension bearing and between rotor and stator, the openend of sheath stretches in outside casing and is connected with fluid container, and the inner chamber of the inner chamber of sheath and fluid container connects, the left end of rotor stretches in the inner chamber of fluid container, described casing is positioned at magnetic suspension bearing side and stator side and is respectively equipped with cooling liquid flowing channel, enclosure wall is provided with inlet and liquid outlet, inlet is all connected with cooling liquid flowing channel with liquid outlet.
Further, sealing gasket is provided with between the openend of described sheath and fluid container.
The utility model has following beneficial effect:
1) rotor is sealed in sheath, can not rub, also can not be subject to the corrosion of cooling fluid with the cooling fluid of sheath outside;
2) in the cooling liquid flowing channel of cooling fluid in casing, flowing relies on the pressure differential imported and exported, and flowing velocity is faster than relying on the spraying cooling of gravity;
3) part such as stator and sheath is completely submerged in the cooling fluid of flowing, and heat transfer boundary condition is very good, and therefore the liquid cooling of use immersion effectively can improve the cooling effect to parts such as stator, magnetic suspension bearing and sheaths;
4) heat that rotor produces passes to sheath by radiation and convection current, and then is taken away by the cooling fluid of jacket outer surface, and therefore immersion liquid cooling can cooled rotor indirectly;
5) be full of cooling fluid in casing, do not have air, therefore cooling fluid is not oxidizable, is also conducive to motor explosion-proof.
Accompanying drawing illustrates:
Fig. 1 is structure chart of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, the immersion liquid cooling structure of rotor is isolated in the utility model magnetic suspension motor, comprise casing 1, magnetic suspension bearing 2, rotor 3 and stator 6, magnetic suspension bearing 2 and stator 6 are supported in casing 1 respectively, and rotor 3 is arranged in magnetic suspension bearing 2 and in stator 6.Sheath 5 is located in the inner chamber of casing 1, and sheath 5 is between rotor 3 and magnetic suspension bearing 2 and between rotor 3 and stator 6.Sheath 5 is one end open, the barrel-like structure that the other end is airtight, and the openend of sheath 5 stretches in outside casing 1 and is connected with fluid container 4, and the inner chamber of the inner chamber of sheath 5 and fluid container 4 connects, and the left end of rotor 3 stretches in the inner chamber of fluid container 4.Sheath 5 is closed containers of an one end open, opening be filled with fluid-encapsulated fluid container 4 and be connected, and rotor 3 and pedestal 1 to be separated, to be fluid-encapsulatedly full of between rotor 3 and sheath 5, take away the heat of rotor 3.
The utility model is magnetic suspension bearing 2 in cooling casing 1 and stator 6, casing 1 is positioned at magnetic suspension bearing 2 side and stator 6 side and is respectively equipped with cooling liquid flowing channel 11, this cooling liquid flowing channel 11 connects with the inner chamber of sheath 5, thus makes the cooling fluid in cooling liquid flowing channel 11 directly act on the outer surface of sheath 5.Casing 1 wall is provided with inlet 12 and liquid outlet 13, and inlet 12 is all connected with cooling liquid flowing channel 11 with liquid outlet 13.Cooling fluid injects motor internal by the inlet 12 on casing, is full of the space in casing 1, outside sheath 5 with cooling liquid flowing channel 11.Cooling fluid flows through the heat generating components such as magnetic suspension bearing 2, stator 6, sheath 5 under the driving of pressure, and takes away heat by heat convection.Being discharged by the liquid outlet 13 of casing 1 by the cooling fluid heated, carrying out circulating cooling by being driven by pump again after water or air cooling.The heat of rotor 3 can by convection current and radiant transfer to sheath 5, and then cooled liquid is taken away.
For ensureing the sealing between the openend of sheath 5 and fluid container 4 further, between the openend and fluid container 4 of sheath 5, be provided with sealing gasket.
The feature of the immersion liquid cooling structure of the utility model isolation rotor magnetic suspension motor is:
1) rotor 3 is sealed in sheath 5, can not rub, also can not be subject to the corrosion of cooling fluid with the cooling fluid of sheath 5 outside.
2) in the cooling liquid flowing channel 11 of cooling fluid in casing 1, flowing relies on the pressure differential imported and exported, and flowing velocity is faster than relying on the spraying cooling of gravity.
3) part such as stator 3 and sheath 5 is completely submerged in the cooling fluid of flowing, and heat transfer boundary condition is very good.Therefore the liquid cooling of use immersion effectively can improve the cooling effect to parts such as stator 6, magnetic suspension bearing 2, sheaths 5.
4) heat that rotor 3 produces passes to sheath 5 by radiation and convection current, and then is taken away by the cooling fluid of sheath 5 outer surface, and therefore immersion liquid cooling can cooled rotor 3 indirectly.
5) be full of cooling fluid in casing 1, do not have air, therefore cooling fluid is not oxidizable, is also conducive to motor explosion-proof.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, can also make some improvement under the prerequisite not departing from the utility model principle, these improvement also should be considered as protection range of the present utility model.
Claims (2)
1. in a magnetic suspension motor, isolate the immersion liquid cooling structure of rotor, comprise casing (1), magnetic suspension bearing (2), rotor (3) and stator (6), described magnetic suspension bearing (2) and stator (6) are supported in casing (1) respectively, rotor (3) is arranged in magnetic suspension bearing (2) and in stator (6), it is characterized in that: also comprise fluid container (4) and sheath (5), described sheath (5) is one end open, the barrel-like structure that the other end is airtight, sheath (5) is sheathed between rotor (3) and magnetic suspension bearing (2) and between rotor (3) and stator (6), the openend of sheath (5) stretches in casing (1) and is connected with fluid container (4) outward, and the inner chamber of the inner chamber of sheath (5) and fluid container (4) connects, the left end of rotor (3) stretches in the inner chamber of fluid container (4), described casing (1) is gone up and is positioned at magnetic suspension bearing (2) side and stator (6) side and is respectively equipped with cooling liquid flowing channel (11), casing (1) wall is provided with inlet (12) and liquid outlet (13), inlet (12) is all connected with cooling liquid flowing channel (11) with liquid outlet (13).
2. isolate the immersion liquid cooling structure of rotor in magnetic suspension motor as claimed in claim 1, it is characterized in that: between the openend of described sheath (5) and fluid container (4), be provided with sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521015909.0U CN205178773U (en) | 2015-12-09 | 2015-12-09 | Submergence formula liquid cooling structure of keeping apart rotor among magnetic levitation motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521015909.0U CN205178773U (en) | 2015-12-09 | 2015-12-09 | Submergence formula liquid cooling structure of keeping apart rotor among magnetic levitation motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205178773U true CN205178773U (en) | 2016-04-20 |
Family
ID=55742704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521015909.0U Withdrawn - After Issue CN205178773U (en) | 2015-12-09 | 2015-12-09 | Submergence formula liquid cooling structure of keeping apart rotor among magnetic levitation motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205178773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337452A (en) * | 2015-12-09 | 2016-02-17 | 南京磁谷科技有限公司 | Immersion type liquid cooling structure of isolation rotor in magnetic levitation motor |
| CN112814935A (en) * | 2021-02-05 | 2021-05-18 | 陈亮 | High-speed air suspension compressor for fuel cell, fuel cell system and vehicle |
-
2015
- 2015-12-09 CN CN201521015909.0U patent/CN205178773U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337452A (en) * | 2015-12-09 | 2016-02-17 | 南京磁谷科技有限公司 | Immersion type liquid cooling structure of isolation rotor in magnetic levitation motor |
| CN112814935A (en) * | 2021-02-05 | 2021-05-18 | 陈亮 | High-speed air suspension compressor for fuel cell, fuel cell system and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160420 Effective date of abandoning: 20171229 |
|
| AV01 | Patent right actively abandoned |