CN203871994U - Motor cooling system - Google Patents
Motor cooling system Download PDFInfo
- Publication number
- CN203871994U CN203871994U CN201420308640.4U CN201420308640U CN203871994U CN 203871994 U CN203871994 U CN 203871994U CN 201420308640 U CN201420308640 U CN 201420308640U CN 203871994 U CN203871994 U CN 203871994U
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- stator core
- electric machine
- machine casing
- oil
- motor
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Abstract
The utility model discloses a motor cooling system which comprises a motor housing, a front end cover, a rear end cover, a stator core, a stator core winding, a rotor and a rotating shaft. The motor housing, the front end cover, the rear end cover, the stator core, the rotor and the rotating shaft form a motor sealing space. Cooling oil flows inside the motor sealing space. The motor housing is provided with at least an oil feed hole and at least an oil outlet hole. An oil-way pipeline, a pump and a radiator are arranged outside the motor housing. The oil-way pipeline, the pump and the radiator are communicated with the motor sealing space through the oil feed hole and the oil outlet hole so as to form a circulating cooling loop. By the motor cooling system, the motor housing, the stator core and the stator core winding can be directly cooled. The cooling effect is uniform, and operation of the motor rotor is not influenced. Energy loss is low.
Description
Technical field
The utility model relates to a kind of cooling system, specifically a kind of electromotor cooling system.
Background technology
Along with social development, motor is gradually to the future development of miniaturization, lightweight, high speed.Motor can produce a large amount of losses, for example copper loss, iron loss in the course of the work.These loss meetings change into heat the temperature of motor are raise.Problem of temperature rise can affect the useful life of motor on the one hand, can affect on the other hand the design to motor volume.And under many circumstances, the volume of motor is subject to the restriction of environment for use.
The type of cooling of motor has two kinds at present: air-cooled and oil cooling.Air-cooled open-type electric machine and the protected machine of being only applicable to, is not suitable for impervious machine and fireproof machine.Oil cooling, because oily thermal capacity is large, can also adopt pump to circulate, and therefore cooling effect is better than air-cooled.
Oil cooling mode has two kinds at present: oil-immersed type and splash.
Traditional oil-immersed type type of cooling is to stir cold oil by the fan blade on rotor to realize.Also there is certain defect: 1, blade stirs cold oil meeting loss part energy, can produce resistance to the rotation of rotor simultaneously, and the higher loss of rotating speed is larger, has reduced electric efficiency simultaneously; 2, cooling segment is insufficient, substantially can only cooling stator end; 3, owing to there is no radiator, the temperature rise of cold oil is very fast, thereby reduces radiating effect.
Splash has certain advantage compared with oil-immersed type.Cold oil sprays to the fan blade on rotor by the nozzle at fuel feed hole place, by fan blade, cold oil is stirred and is splashed to motor case inwall, and cooling range is large, but cold oil still needs to stir by rotor fan blade, and therefore, when high speed, energy loss is also larger.
Utility model content
It is a kind of simple in structure that the purpose of this utility model is to provide, and heat transmission is fast, and loss is low, cooling sufficient electromotor cooling system.
For achieving the above object, the utility model provides following technical scheme:
A kind of electromotor cooling system, comprises electric machine casing, front end housing, rear end cap, stator core, stator core winding, rotor and rotating shaft, the inwall of described electric machine casing and the stator core tight fit that is tied with winding, the stationary part of composition motor; Described rotor and rotating shaft tight fit, the rotor portion of composition motor; Described rotating shaft is arranged on by bearing in the bearing chamber of front end housing and rear end cap; Described front end housing and rear end cap are arranged on respectively electric machine casing rear and front end; Form a motor seal space by electric machine casing, front end housing, rear end cap, stator core, rotor, rotating shaft, in this motor seal space, stream has cold oil; On described electric machine casing, have at least one fuel feed hole and at least one oil outlet, electric machine casing outside is provided with oil line pipe, pump and radiator, and oil line pipe, pump and radiator are communicated with by fuel feed hole and oil outlet with motor seal space, form a circulation cooling circuit.
As further program of the utility model: described fuel feed hole is provided with three, lays respectively at two ends and the middle part of electric machine casing, and faces stator core and stator core winding.
As further program of the utility model: described electric machine casing and stator core adopt interference fit.
As further program of the utility model: the inwall of described electric machine casing and/or the outer wall of stator core have some axial oil grooves along generatrix direction, and axial oil groove is uniformly distributed.
Compared with prior art, the beneficial effects of the utility model are: different from existing electromotor cooling system, system, without stirring cold oil by rotor fan blade, realizes cooling object, and this is concerning the permagnetic synchronous motor without rotor fan blade, significant.Meanwhile, by near the fuel feed hole of stator core winding, cold oil can the highest stator core winding of directly cooled machine internal temperature, system cools successful.In addition, by axial oil groove, cold oil can directly cooled machine casing and stator core, and cooling range is large and evenly.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation that the utility model has axial oil groove on casing housing.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1～3, in the utility model embodiment, a kind of electromotor cooling system, comprise electric machine casing 1, front end housing 2, rear end cap 3, stator core 4, stator core winding 5, rotor 6 and rotating shaft 7, the inwall of described electric machine casing 1 and stator core 4 tight fits that are tied with winding 5, the stationary part of composition motor; Described rotor 6 and rotating shaft 7 tight fits, the rotor portion of composition motor; Described rotating shaft 7 is arranged on by bearing in the bearing chamber of front end housing 2 and rear end cap 3; Described front end housing 2 and rear end cap 3 are arranged on respectively electric machine casing 1 rear and front end; Form a motor seal space 8 by electric machine casing 1, front end housing 2, rear end cap 3, stator core 4, rotor 6, rotating shaft 7, this interior stream in motor seal space 8 has cold oil 9; On described electric machine casing 1, have at least one fuel feed hole 10 and at least one oil outlet 11, as preferably, described fuel feed hole 10 is provided with three, lays respectively at two ends and the middle part of electric machine casing 1, and faces stator core 4 and stator core winding 5; Electric machine casing 1 outside is provided with oil line pipe 12, pump 13 and radiator 14, and oil line pipe 12, pump 13 and radiator 14 be communicated with by fuel feed hole 10 and oil outlet 11 with motor seal space 8, forms a circulation cooling circuit.
In the utility model, described electric machine casing 1 adopts interference fit with stator core 4, assembles simple and reliable; The outer wall of the inwall of described electric machine casing 1 and/or stator core 4 has some axial oil grooves 15 along generatrix direction, and axial oil groove 15 is uniformly distributed.
When the utility model uses, by pump, cold oil is delivered to the fuel feed hole on electric machine casing, part cold oil flows through stator core outer surface through axial oil groove, carry out cooling to casing inner wall and stator core, another part cooling fluid directly flows through the surface of the winding of stator core, can directly carry out the winding of stator core coolingly, has a small amount of cold oil simultaneously and flow on rotor, along with the rotation of rotor, thereby rotor is carried out suitably cooling; Afterwards, cold oil is from oil outlet outflow motor, and through oil circuit, inflow radiator, radiator comes out the temperature of cold oil, and pump is again by cold oil suction motor, carry out cooling, constantly circulation.This electromotor cooling system can directly cooled machine housing, the winding of stator core and stator core, and cooling effect is even, and does not affect the operation of rotor, and energy loss is little.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the utility model.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this specification is described according to execution mode, but be not that each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
Claims (4)
1. an electromotor cooling system, comprise electric machine casing (1), front end housing (2), rear end cap (3), stator core (4), stator core winding (5), rotor (6) and rotating shaft (7), the inwall of described electric machine casing (1) and stator core (4) tight fit that is tied with winding (5), the stationary part of composition motor; Described rotor (6) and rotating shaft (7) tight fit, the rotor portion of composition motor; Described rotating shaft (7) is arranged on by bearing in the bearing chamber of front end housing (2) and rear end cap (3); Described front end housing (2) and rear end cap (3) are arranged on respectively electric machine casing (1) rear and front end; It is characterized in that, form a motor seal space (8) by electric machine casing (1), front end housing (2), rear end cap (3), stator core (4), rotor (6), rotating shaft (7), this interior stream in motor seal space (8) has cold oil (9); On described electric machine casing (1), have at least one fuel feed hole (10) and at least one oil outlet (11), electric machine casing (1) outside is provided with oil line pipe (12), pump (13) and radiator (14), and oil line pipe (12), pump (13) and radiator (14) are communicated with by fuel feed hole (10) and oil outlet (11) with motor seal space (8), form a circulation cooling circuit.
2. electromotor cooling system according to claim 1, is characterized in that, described fuel feed hole (10) is provided with three, lays respectively at two ends and the middle part of electric machine casing (1), and faces stator core (4) and stator core winding (5).
3. electromotor cooling system according to claim 1, is characterized in that, described electric machine casing (1) adopts interference fit with stator core (4).
4. electromotor cooling system according to claim 1, is characterized in that, the outer wall of the inwall of described electric machine casing (1) and/or stator core (4) has some axial oil grooves (15) along generatrix direction, and axial oil groove (15) is uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308640.4U CN203871994U (en) | 2014-06-11 | 2014-06-11 | Motor cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308640.4U CN203871994U (en) | 2014-06-11 | 2014-06-11 | Motor cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871994U true CN203871994U (en) | 2014-10-08 |
Family
ID=51652915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420308640.4U Expired - Fee Related CN203871994U (en) | 2014-06-11 | 2014-06-11 | Motor cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871994U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162287A (en) * | 2015-08-12 | 2015-12-16 | 福安市广源机电有限公司 | Double-cooling motor |
| CN105262280A (en) * | 2015-08-12 | 2016-01-20 | 福安市广源机电有限公司 | Novel internal circulation oil cooling motor |
| CN106685127A (en) * | 2017-03-06 | 2017-05-17 | 广东合新材料研究院有限公司 | Sealing structure of liquid-cooling hub motor |
| CN106787450A (en) * | 2016-11-23 | 2017-05-31 | 广东合新材料研究院有限公司 | Dynamic adjustable oil mass immersion oil cooling structure and cooling means in wheel hub motor chamber |
| CN106849510A (en) * | 2017-03-01 | 2017-06-13 | 上海英磁新能源科技有限公司 | A kind of system for cooling down motor stator |
| CN108270325A (en) * | 2016-12-31 | 2018-07-10 | 郑州吉田专利运营有限公司 | A kind of self-loopa motor to radiate |
| CN108347136A (en) * | 2018-05-03 | 2018-07-31 | 包头天工电机有限公司 | Oil cooling wheel hub permanent magnet synchronous motor |
| WO2018153001A1 (en) * | 2017-02-22 | 2018-08-30 | 蔚来汽车有限公司 | Motor cooling structure, power motor and electric drive system |
| CN109327113A (en) * | 2018-10-29 | 2019-02-12 | 深圳市泉胜新技术开发有限公司 | A kind of oil-cooled motor cooling device |
| CN109560655A (en) * | 2017-09-27 | 2019-04-02 | 天津市松正电动汽车技术股份有限公司 | A kind of motor bearing lubricating structure |
| CN114421712A (en) * | 2021-12-22 | 2022-04-29 | 浙江零跑科技股份有限公司 | Oil cooling motor stator end winding oil spout cooling body |
| DE102021119324A1 (en) | 2021-07-26 | 2023-01-26 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | electrical machine |
-
2014
- 2014-06-11 CN CN201420308640.4U patent/CN203871994U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262280A (en) * | 2015-08-12 | 2016-01-20 | 福安市广源机电有限公司 | Novel internal circulation oil cooling motor |
| CN105162287A (en) * | 2015-08-12 | 2015-12-16 | 福安市广源机电有限公司 | Double-cooling motor |
| CN105162287B (en) * | 2015-08-12 | 2018-02-23 | 郭晖 | A kind of double cooling motors |
| CN106787450A (en) * | 2016-11-23 | 2017-05-31 | 广东合新材料研究院有限公司 | Dynamic adjustable oil mass immersion oil cooling structure and cooling means in wheel hub motor chamber |
| CN108270325A (en) * | 2016-12-31 | 2018-07-10 | 郑州吉田专利运营有限公司 | A kind of self-loopa motor to radiate |
| WO2018153001A1 (en) * | 2017-02-22 | 2018-08-30 | 蔚来汽车有限公司 | Motor cooling structure, power motor and electric drive system |
| CN106849510A (en) * | 2017-03-01 | 2017-06-13 | 上海英磁新能源科技有限公司 | A kind of system for cooling down motor stator |
| CN106849510B (en) * | 2017-03-01 | 2023-06-30 | 上海英磁新能源科技有限公司 | System for cooling motor stator |
| CN106685127A (en) * | 2017-03-06 | 2017-05-17 | 广东合新材料研究院有限公司 | Sealing structure of liquid-cooling hub motor |
| CN106685127B (en) * | 2017-03-06 | 2019-01-11 | 广东合一新材料研究院有限公司 | A kind of sealing structure of liquid cooling hub motor |
| CN109560655A (en) * | 2017-09-27 | 2019-04-02 | 天津市松正电动汽车技术股份有限公司 | A kind of motor bearing lubricating structure |
| CN108347136A (en) * | 2018-05-03 | 2018-07-31 | 包头天工电机有限公司 | Oil cooling wheel hub permanent magnet synchronous motor |
| CN108347136B (en) * | 2018-05-03 | 2024-01-30 | 包头天工电机有限公司 | Oil-cooled hub permanent magnet synchronous motor |
| CN109327113A (en) * | 2018-10-29 | 2019-02-12 | 深圳市泉胜新技术开发有限公司 | A kind of oil-cooled motor cooling device |
| CN109327113B (en) * | 2018-10-29 | 2023-12-26 | 深圳市泉胜新技术开发有限公司 | Oil cooling motor cooling device |
| DE102021119324A1 (en) | 2021-07-26 | 2023-01-26 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | electrical machine |
| DE102021119324B4 (en) | 2021-07-26 | 2023-05-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | electrical machine |
| CN114421712A (en) * | 2021-12-22 | 2022-04-29 | 浙江零跑科技股份有限公司 | Oil cooling motor stator end winding oil spout cooling body |
| CN114421712B (en) * | 2021-12-22 | 2023-08-01 | 浙江零跑科技股份有限公司 | Oil-cooled motor stator end winding oil spray cooling mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20150611 |
|
| EXPY | Termination of patent right or utility model |