CN102820738A - Spray type motor stator evaporative cooling system - Google Patents
Spray type motor stator evaporative cooling system Download PDFInfo
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- CN102820738A CN102820738A CN201210295956XA CN201210295956A CN102820738A CN 102820738 A CN102820738 A CN 102820738A CN 201210295956X A CN201210295956X A CN 201210295956XA CN 201210295956 A CN201210295956 A CN 201210295956A CN 102820738 A CN102820738 A CN 102820738A
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Abstract
The invention discloses a spray type motor stator evaporative cooling system, wherein a stator enclosed space consists of a stator enclosure (1), a spacing sleeve (3) and an end cover (2). A spraying system comprises liquid dispensers (801, 802, 803 and 804) which are distributed at the back part of a stator core (7), in the stator core (7), in a stator slot bottom subslot and the periphery of the end part of a stator winding (6) and nozzles (9) which are arranged on the liquid dispensers (801, 802, 803 and 804). A circulating pump (10) in an outer forced circulation system pumps an evaporative cooling medium from the bottom of the stator enclosed space, and the evaporative cooling medium is filtered by a filter (11), and is delivered to the nozzles (9) through the liquid dispensers (801, 802, 803 and 804). The atomized evaporative cooling medium is directly sprayed to all the heating elements of the stator. The evaporative cooling medium which is subjected to heat exchange flows into the stator enclosed space, the vaporized evaporative cooling medium flows into a condenser (12) at the top of the stator enclosure (1), and is changed into the liquid after being condensed by the condenser (12), and the liquid flows back into the stator enclosed space.
Description
Technical field
The present invention relates to a kind of motor stator evaporative cooling system
Background technology
Along with the increase of capacity motor, caloric value increases, and the heat-sinking capability of motor directly affects motor properties and life-span, and this just proposes higher requirement to the cooling system of motor.Evaporation cooling technique utilizes the principle of evaporative cooling medium vaporization heat absorption to come cooling motor.Compare with traditional type of cooling, special advantages is arranged.Evaporation cooling technique utilizes latent heat of vaporization heat absorption, and cooling effectiveness is high, and cooling effect is evenly comprehensive.It adopts height to insulate, boiling point is suitable, do not fire evaporative cooling medium not quick-fried, safe, stable, asepsis environment-protecting, has guaranteed the safe and stable operation of motor.
At present, evaporation cooling technique is applied to the motor stator cooling and has two kinds of conventionally forms: pipeline inner-cooled and complete immersion formula.
The transpiration-cooled conventional application mode of pipeline inner-cooled is: stator winding adopts hollow conductor, the perhaps mode that makes up of hollow conductor and solid conductor, and evaporative cooling medium in the hollow conductor internal flow.Heat transferred is inner to hollow conductor; Evaporative cooling medium heat absorption vaporization; Under the effect of self or external circulation power, enter into the external condensation device along the evaporative cooling loop, after condenser condenses, return the inner circulation that continues next time of hollow conductor; So go round and begin again, reach the purpose of cooling motor stator.Chinese patent 01131399.4 has proposed the evaporation-cooled device of hydraulic generator stator winding.Chinese patent 200710177555.3 has proposed a kind of stator structure of inner cooling type self-circulation vaporization cooling wind power generator.The two is respectively the application of top this pipeline inner-cooled evaporation cooling technique on hydraulic generator and wind-driven generator.Chinese patent 201110385743.1 has proposed a kind of stator evaporation-cooled device, proposes at stator core internal placement hollow pipe, and hollow pipe is connected with collecting ring with the liquid collecting ring that install the stator both sides, and coolant is in the closing pipe line inner loop.More than these several kinds of topmost deficiencies of inner-cooled evaporative cooling scheme two aspects are arranged: the on the one hand stator winding distortion that twists in the end; The hollow pipe of stator winding internal placement also will reverse thereupon; The stator difficulty of processing less for diameter is bigger; Can't effectively ensure the hollow section size that hollow pipe is inner, influence inner evaporative cooling medium and flow; On the other hand because the motor stator winding caloric value is bigger; Therefore many hollow pipes need be set in stator core or stator winding; Every hollow pipe of intercooling cycle requirement of sealing all passes through joint and links to each other with steam collector with collector tube; Will inevitably cause whole cooling system pipeline, joint numerous like this, and the position multidigit of joint is in the space-constrained stator winding end, the complex structure of system and constructional difficulties; And the difficulty that causes operation, safeguards, reduced the reliability of whole system.
The transpiration-cooled conventional application mode of complete immersion formula is: form enclosure space with stator cage, distance sleeve and end cover, heat generating components such as stator core and stator winding all are immersed in the evaporative cooling medium.Evaporative cooling medium heat absorption vaporization, steam rises and enters into the external condensation device, after condenser condenses, becomes liquid and flow back into enclosure space inside again, reaches the purpose of cooling motor stator.Chinese patent 200810114870.6 has proposed horizontal pervaporatively cooling motor.Chinese patent 200510086794.9 has proposed a kind of evaporative cooling aerogenerator stator.The two is respectively the application of top complete immersion formula evaporation cooling technique on turbo generator and wind-driven generator.But the deficiency of this type of cooling mainly contains two aspects: one side is that the evaporative cooling medium amount ratio that adopts complete immersion formula structure to need is bigger; Particularly the occupied space of end-heating parts is less, but needs a lot of evaporative cooling mediums of waste to go to fill.The evaporative cooling medium price of novel environment-friendly is higher at present, adopts the stator cost of complete immersion formula structure to be limited by high evaporative cooling medium, has seriously influenced the economy of motor; On the other hand; Adopt the stator interior seal cavity of complete immersion formula structure to be full of evaporative cooling medium, the rigidity of distance sleeve and the reliability of hermetically-sealed construction have been proposed higher requirement, especially distance sleeve is in order to keep enough rigidity; Therefore need certain radial thickness; Motor gas-gap increases thereupon, has increased difficulty to design of electrical motor, has also improved the cost of motor.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing pipeline inner-cooled and complete immersion formula vapor cooling system, a kind of motor stator fountain evaporative cooling system is provided.Electric machine stator iron of the present invention and stator winding adopt the spray cooling, and the evaporative cooling medium after unnecessary evaporative cooling medium and the condensation will directly be kept at enclosure space inside.
The present invention adopts following technical scheme.
The present invention includes the seal stator space and spray system, outside forced circulation system and condenser wherein is installed.Form the stator confined space by stator cage, distance sleeve and end seal end cap.Stator core and stator winding are sealed in the described stator confined space.In the seal stator interior volume spray system is installed; Described spray system comprises liquid distributor and is installed in the nozzle on the liquid distributor, and liquid distributor is arranged in stator core back, the stator core, at the bottom of the stator slot in the secondary groove and around the stator winding end.The above space of the inner evaporative cooling medium liquid level of stator confined space is the stator evaporating space.Outside forced circulation system is arranged on outside the stator cage, and this outside forced circulation system comprises parts such as circulating pump and filter.The front end of circulating pump is connected through the bottom of pipeline with the seal stator space, and the rear end of circulating pump connects filter through pipeline, and the rear end of filter connects liquid distributor through pipeline.Condenser is installed in the stator cage top.Liquid evaporative cooling medium is kept at the bottom in seal stator space, is extracted out by circulating pump, sends into liquid distributor after filtering through filter, directly sprays to each heat generating components of stator through after the nozzle atomization.Liquid evaporative cooling medium and heat generating components carry out after the heat exchange, and a part of evaporative cooling medium still is liquid, directly flow back into the bottom in seal stator space; Another part evaporative cooling medium receives thermal evaporation to become steam state, and rising through the stator evaporating space gets into condenser, becomes liquid state after the condensation, flows back to bottom, seal stator space, has constituted the evaporative cooling loop of whole system.
The present invention is equipped with non magnetic distance sleeve at the inner circle of stator core, and the end seal end cap is installed in stator cage and non magnetic distance sleeve two ends, and end seal end cap outside is equipped with the pressure stop ring, is used for fixing and seals non magnetic distance sleeve.Form an enclosure space by stator cage, distance sleeve and end seal end cap, stator core and stator winding are sealed in the stator confined space of this sealing.
The present invention's many liquid distributors that this three place arranges in the secondary groove in electric machine stator iron back, stator core and at the bottom of the stator slot are the center axial distribution with the electrical axis.The liquid distributor of arranging around the stator winding end is the center line annular spread with the electrical axis.The number of liquid distributor is decided according to the size and the stator loss of motor.Liquid distributor is a hollow tubular, and the cross section of its exterior cross-section and endoporus can be circular, and rectangle or polygon have the hole on the liquid distributor, and liquid distributor is connected with nozzle through this perforate.The liquid distributor of arranging around the stator winding end can be installed in the both sides of stator cage internal stator iron core, also can be installed in outside the stator cage.
The front end of liquid distributor links to each other with filter in the outside forced circulation system through pipeline, and the tail end of liquid distributor seals.Every liquid distributor can be separately links to each other with outside forced circulation system through pipeline, passes through pipeline after also can many liquid distributors pooling together and links to each other with outside forced circulation system.Evaporative cooling medium gets into liquid distributor from outside forced circulation system, gets into nozzle through perforate, by directly spraying to the stator heat generating components after the nozzle atomization.After carrying out heat exchange; Liquid evaporative cooling medium directly enters the stator confined space; Evaporative cooling medium steam after the heat absorption vaporization rises to condenser through the stator evaporating space, changes liquid into through the evaporative cooling medium after the condenser condenses, flow back into the bottom of stator confined space.
Evaporative cooling medium is flowing in the evaporative cooling loop.The evaporative cooling medium that the present invention selected for use satisfies high insulation, it is not quick-fried not fire, boiling point is suitable, stability and safety, nontoxic, environmental protection requirement, also can select for use by the high insulation of transformer wet goods, the oils medium of good heat conduction effect and the liquid that evaporative cooling medium mixes.
Stator evaporation-cooled device of the present invention has following outstanding feature:
(1) compares with conventional totally-enclosed circulating line inner-cooled; Pipeline of laying and joint quantity reduce; And have the seal sleeve that whole coolants are sealed in stator confined space inside in the system, so the sealing property of each pipeline and joint and also attenuating thereupon of technology difficulty requirement;
(2) compare with the complete immersion formula, the consumption of evaporative cooling medium reduces greatly, and the stator interior seal cavity has only the bottom to retain has a small amount of medium that satisfies stator cooling and systemic circulation requirement, and motor cost reduces, and economy improves.Because stator confined space inside no longer is full of evaporative cooling medium, to the rigidity requirement reduction of distance sleeve, its radial thickness also can reduce than the distance sleeve that uses in the complete immersion formula, helps motor design simultaneously.
Description of drawings
The stator spray evaporative cooling system structural representation that Fig. 1 shows for the motor longitudinal profile;
Fig. 2 is that motor is at stator core segment horizontal section sketch map;
Fig. 3 is that motor is at stator winding end horizontal section sketch map.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fountain evaporative cooling system structure of the present invention is formed as shown in Figure 1.At the inner circle of stator core 7 non magnetic distance sleeve 3 is installed, end seal end cap 2 is installed in stator cage 1 and non magnetic distance sleeve 3 two ends, presses stop ring 4 mounting end end covers 2 outsides.Stator cage 1 top is equipped with condenser 12.The forced circulation system of evaporative cooling system is arranged on outside the stator cage 1; Comprise circulating pump 10 and filter 11 parts such as grade; The front end of circulating pump 10 is connected through the bottom of pipeline with the seal stator space; The rear end of circulating pump 10 connects filter 11 through pipeline, and the rear end of filter 11 connects each liquid distributor through pipeline.Circulating pump 10 extracts liquid evaporative cooling medium from the bottom of stator confined space and sends into filter 11.Filter evaporative cooling medium afterwards through filter 11 and get into each liquid distributor, by directly spraying to each heat generating components after nozzle 9 atomizings.Liquid evaporative cooling medium and heat generating components carry out after the heat exchange, and a part of medium still is liquid, directly flow back into the bottom in seal stator space; Another part medium receives thermal evaporation to become steam state, and rising through the stator evaporating space gets into condenser 12, becomes liquid state after the condensation, flows back to bottom, seal stator space.
In practical application, the quantity of circulating pump 10 and filter 11 can the motor feels hot that situation is done to adjust accordingly with the evaporative cooling medium consumption according to concrete.Condenser 12 can be selected air-cooled, water-cooled or other methods for cooling according to concrete applicable cases.
Arrange the many liquid distributors that are parallel to electrical axis 5 in the secondary groove 701 in electric machine stator iron 7 backs, the stator core 7 and at the bottom of the stator slot, many liquid distributors are the center axial distribution with electrical axis 5.Liquid distributor 804 can be installed in stator core 7 backs.Liquid distributor 802 also can be inner in the hole that is installed in the stator core 7.Liquid distributor 801 also can be installed at the bottom of the stator slot in the secondary groove 701, more than the deployment scenarios of three kinds of liquid distributors as shown in Figure 2.More than the set-up mode of various liquid distributors, decide according to motor stator structure and stator loss, can be provided with simultaneously, also can select some types of combinations to be provided with.Liquid distributor is a hollow tubular, and its upper edge motor shaft is to having the hole, and liquid distributor is connected with nozzle 9 through this perforate.A plurality of nozzles 9 are in the axial direction separation, and the axial spacing between two nozzles 9 is equidistantly or unequal-interval, and a plurality of nozzles 9 can be installed on the same radial section.Be installed in electric machine stator iron 7 backs, stator core 7 and the liquid distributor in the secondary groove 701 at the bottom of the stator slot, receive spatial constraints also nozzle 9 can be installed.Liquid evaporative cooling medium directly sprays to heat generating components from the perforate of liquid distributor.
Be installed in stator winding 6 ends liquid distributor 804 quantity all around and be at least two, guarantee that promptly each side has a liquid distributor 804 at least in the stator both sides.Liquid distributor 804 is a hollow tubular, can be installed in the both sides of stator cage 1 inner stator cores 7, also can be installed in outside the stator cage 1.A plurality of nozzles 9 are arranged according to differing heights up and down, and are as shown in Figure 3.
Liquid distributor 801,802,803 and 804 front end link to each other the tail end sealing through pipeline with filter 11 in the outside forced circulation system.Evaporative cooling medium gets into liquid distributor from outside forced circulation system, again through directly spraying on each heat generating components after nozzle 9 atomizings.Every liquid distributor can be separately links to each other with outside forced circulation system through pipeline, passes through pipeline after also can many liquid distributors pooling together and links to each other with outside forced circulation system.
In practical application, liquid distributor 801,802,803 and 804 and the arrangement of nozzle 9 and each connecting line and joint can do corresponding adjustment according to concrete electric machine structure.
Evaporative cooling medium is flowing in the evaporative cooling loop.The evaporative cooling medium that the present invention selected for use satisfies high insulation, it is not quick-fried not fire, boiling point is suitable, stability and safety, nontoxic, environmental protection requirement, also can select for use by the high insulation of transformer wet goods, the oils medium of good heat conduction effect and the liquid that evaporative cooling medium mixes.
Claims (5)
1. a fountain motor stator evaporative cooling system is characterized in that, described evaporative cooling system comprises the seal stator space and is installed in spray system wherein, outside forced circulation system and condenser (12); Described stator confined space is made up of stator cage (1), distance sleeve (3) and end seal end cap (2); Stator core (7) and stator winding (6) are sealed in the described stator confined space; Non magnetic distance sleeve (3) is installed in the inner circle of stator core (7); End seal end cap (2) is installed in the two ends of stator cage (1) and non magnetic distance sleeve (3); Press the outside of stop ring (4) mounting end end cover (2); In the seal stator interior volume spray system is installed, described spray system comprises liquid distributor and is installed in the nozzle on the liquid distributor; Liquid distributor is arranged in stator core (7) back, stator core (7), at the bottom of the stator slot in the secondary groove and around stator winding (6) end; Condenser (12) is positioned at stator cage (1) top; Outside forced circulation system is installed in outside the stator cage (1); The above space of the inner evaporative cooling medium liquid level of stator confined space is the stator evaporating space.
2. according to the described fountain motor stator of claim 1 evaporative cooling system; It is characterized in that, be arranged in the back, stator core (7) of described electric machine stator iron (7) with stator slot at the bottom of many liquid distributors in the secondary groove (701) be the center axial distribution with electrical axis (5); Liquid distributor is equipped with nozzle (9) vertically, in the axial direction separation, a plurality of nozzles (9) is installed on the same radial section between a plurality of nozzles (9).
3. according to the described fountain motor stator of claim 1 evaporative cooling system, it is characterized in that a plurality of nozzles (9) that are arranged on the liquid distributor (804) of described stator winding (6) end are arranged according to differing heights up and down.
4. according to claim 2 or 3 described fountain motor stator evaporative cooling systems, it is characterized in that described liquid distributor is a hollow tubular, the exterior cross-section of liquid distributor and inner hole section are circle or rectangle or polygon.
5. according to the described fountain motor stator of claim 1 evaporative cooling system, it is characterized in that in the described evaporative cooling system that the evaporative cooling medium that circulating pump (10) extracts from stator confined space bottom is through filter (11); Send into nozzle (9) through the evaporative cooling medium that filters by liquid distributor and directly spray to each heat generating components of stator; After carrying out heat exchange; The evaporative cooling medium of liquid part flows directly to the bottom of stator confined space; Evaporative cooling medium after the heat absorption vaporization rises to condenser (12), becomes liquid through the condensed evaporative cooling medium of condenser (12), flow back into the bottom of stator confined space.
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| CN201210295956.XA CN102820738B (en) | 2012-08-17 | 2012-08-17 | Spray type motor stator evaporative cooling system |
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| CN201210295956.XA CN102820738B (en) | 2012-08-17 | 2012-08-17 | Spray type motor stator evaporative cooling system |
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| CN102820738A true CN102820738A (en) | 2012-12-12 |
| CN102820738B CN102820738B (en) | 2015-03-18 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356637A (en) * | 2015-12-09 | 2016-02-24 | 南京磁谷科技有限公司 | Evaporative cooling structure of motor rotor |
| CN105871125A (en) * | 2015-01-21 | 2016-08-17 | 东方电气集团东方电机有限公司 | Rotary motor atomizing evaporative cooling system, motor and cooling method thereof |
| CN106160277A (en) * | 2016-07-14 | 2016-11-23 | 中国第汽车股份有限公司 | A kind of novel automobile power motor stator structure and cooling system thereof |
| CN107800235A (en) * | 2017-11-30 | 2018-03-13 | 哈尔滨理工大学 | A kind of novel high-power density permanent magnet motor liquid-cooling self-circulation casing |
| CN108199535A (en) * | 2018-02-05 | 2018-06-22 | 姜春辉 | A kind of cartridge type list air-gap outer rotor motor |
| CN109038919A (en) * | 2018-08-08 | 2018-12-18 | 湖南云箭集团有限公司 | A kind of hydrogenerator structure |
| WO2019000837A1 (en) * | 2017-06-30 | 2019-01-03 | 广东合一新材料研究院有限公司 | Heat dissipation system for electromagnetic coil |
| CN109361293A (en) * | 2018-11-02 | 2019-02-19 | 南京林业大学 | A kind of dry type evaporative cooling system cooling for motor |
| CN109361292A (en) * | 2018-11-02 | 2019-02-19 | 南京林业大学 | A kind of full-liquid type evaporative cooling system cooling for motor |
| CN109412341A (en) * | 2018-11-02 | 2019-03-01 | 南京林业大学 | A kind of rotor vacuumizes cooling high-speed permanent magnet motor system |
| CN109654049A (en) * | 2019-02-22 | 2019-04-19 | 王文月 | A kind of resisting blower |
| CN110492663A (en) * | 2019-07-08 | 2019-11-22 | 华为技术有限公司 | Motor, power assembly and automobile |
| CN111052565A (en) * | 2017-08-25 | 2020-04-21 | 株式会社明电舍 | Cooling structure for stator of rotating electric machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5224203B1 (en) * | 1967-10-23 | 1977-06-29 | ||
| JPS5983558A (en) * | 1982-11-04 | 1984-05-15 | Honda Motor Co Ltd | Cooling structure in generator for vehicle |
| CN1960126A (en) * | 2005-11-04 | 2007-05-09 | 中国科学院电工研究所 | Transpirationcooled wind driven generator stator |
| CN101534029A (en) * | 2008-12-01 | 2009-09-16 | 中国人民解放军海军工程大学 | Polyphase induction motor with large capacity and high torque density |
| CN202034873U (en) * | 2011-03-18 | 2011-11-09 | 肖富凯 | Sealing device and condenser for evaporative cooling asynchronous motor stator |
| CN102594026A (en) * | 2012-03-13 | 2012-07-18 | 肖富凯 | Motor employing immersion type evaporative cooling and structure optimization method thereof |
| JP2012157098A (en) * | 2011-01-24 | 2012-08-16 | Toshiba Industrial Products Manufacturing Corp | Cooling device for rotating electric machine |
-
2012
- 2012-08-17 CN CN201210295956.XA patent/CN102820738B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5224203B1 (en) * | 1967-10-23 | 1977-06-29 | ||
| JPS5983558A (en) * | 1982-11-04 | 1984-05-15 | Honda Motor Co Ltd | Cooling structure in generator for vehicle |
| CN1960126A (en) * | 2005-11-04 | 2007-05-09 | 中国科学院电工研究所 | Transpirationcooled wind driven generator stator |
| CN101534029A (en) * | 2008-12-01 | 2009-09-16 | 中国人民解放军海军工程大学 | Polyphase induction motor with large capacity and high torque density |
| JP2012157098A (en) * | 2011-01-24 | 2012-08-16 | Toshiba Industrial Products Manufacturing Corp | Cooling device for rotating electric machine |
| CN202034873U (en) * | 2011-03-18 | 2011-11-09 | 肖富凯 | Sealing device and condenser for evaporative cooling asynchronous motor stator |
| CN102594026A (en) * | 2012-03-13 | 2012-07-18 | 肖富凯 | Motor employing immersion type evaporative cooling and structure optimization method thereof |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871125A (en) * | 2015-01-21 | 2016-08-17 | 东方电气集团东方电机有限公司 | Rotary motor atomizing evaporative cooling system, motor and cooling method thereof |
| CN105356637A (en) * | 2015-12-09 | 2016-02-24 | 南京磁谷科技有限公司 | Evaporative cooling structure of motor rotor |
| CN106160277A (en) * | 2016-07-14 | 2016-11-23 | 中国第汽车股份有限公司 | A kind of novel automobile power motor stator structure and cooling system thereof |
| WO2019000837A1 (en) * | 2017-06-30 | 2019-01-03 | 广东合一新材料研究院有限公司 | Heat dissipation system for electromagnetic coil |
| CN111052565A (en) * | 2017-08-25 | 2020-04-21 | 株式会社明电舍 | Cooling structure for stator of rotating electric machine |
| US11070099B2 (en) | 2017-08-25 | 2021-07-20 | Meidensha Corporation | Cooling structure of stator of rotating electrical machine |
| EP3672034A4 (en) * | 2017-08-25 | 2021-04-28 | Meidensha Corporation | Cooling structure of stator of rotating electrical machine |
| CN107800235A (en) * | 2017-11-30 | 2018-03-13 | 哈尔滨理工大学 | A kind of novel high-power density permanent magnet motor liquid-cooling self-circulation casing |
| CN107800235B (en) * | 2017-11-30 | 2024-03-12 | 哈尔滨理工大学 | Liquid cooling self-circulation casing of high-power density permanent magnet motor |
| CN108199535A (en) * | 2018-02-05 | 2018-06-22 | 姜春辉 | A kind of cartridge type list air-gap outer rotor motor |
| CN108199535B (en) * | 2018-02-05 | 2023-09-29 | 姜春辉 | Barrel type single air gap external rotor motor |
| CN109038919A (en) * | 2018-08-08 | 2018-12-18 | 湖南云箭集团有限公司 | A kind of hydrogenerator structure |
| CN109412341A (en) * | 2018-11-02 | 2019-03-01 | 南京林业大学 | A kind of rotor vacuumizes cooling high-speed permanent magnet motor system |
| CN109361292A (en) * | 2018-11-02 | 2019-02-19 | 南京林业大学 | A kind of full-liquid type evaporative cooling system cooling for motor |
| CN109361293A (en) * | 2018-11-02 | 2019-02-19 | 南京林业大学 | A kind of dry type evaporative cooling system cooling for motor |
| CN109654049B (en) * | 2019-02-22 | 2020-09-29 | 广州市万通通风设备有限公司 | High-temperature-resistant fan |
| CN109654049A (en) * | 2019-02-22 | 2019-04-19 | 王文月 | A kind of resisting blower |
| CN110492663A (en) * | 2019-07-08 | 2019-11-22 | 华为技术有限公司 | Motor, power assembly and automobile |
| CN110492663B (en) * | 2019-07-08 | 2021-02-23 | 华为技术有限公司 | Motor, power assembly and car |
| US11575291B2 (en) | 2019-07-08 | 2023-02-07 | Huawei Digital Power Technologies Co., Ltd. | Motor with coolant blocking member on end portion of winding, powertrain, and vehicle |
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