CN104253509A - Direct-cooling method and system for motor winding coils - Google Patents
Direct-cooling method and system for motor winding coils Download PDFInfo
- Publication number
- CN104253509A CN104253509A CN201310263577.7A CN201310263577A CN104253509A CN 104253509 A CN104253509 A CN 104253509A CN 201310263577 A CN201310263577 A CN 201310263577A CN 104253509 A CN104253509 A CN 104253509A
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- oil
- housing
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- end cap
- stator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention relates to a direct-cooling method and system for motor winding coils. The direct-cooling system comprises a front end cap, a rear end cap, a stator coil winding and a shell. The stator coil winding is fixed on the shell, the shell comprises an oil inlet and an oil outlet and is used for forming a cooling oil passage, and the front end cap, the rear end cap and the shell form a closed cavity, and a coil winding of a motor is sealed in the closed cavity.
Description
Technical field
The present invention relates to the direct cooling means of a kind of machine winding coil and system, particularly a kind ofly directly coil of stator of motor is immersed in closing cooling means in coolant and system.
Background technology
Day by day serious along with energy crisis and problem of environmental pollution, Development of EV has become the focus of people's research.Electric automobile adopts motor driven systems, and motor can produce a large amount of loss in the course of the work, such as copper loss, core loss etc.These losses all can change into heat and the temperature of motor is raised, if dispelled the heat to motor not in time, then not only can affect the useful life of motor, may motor damage time serious.
At present, the radiating mode of motor mainly comprises air-cooled, water-cooled and oil cooling three kinds.Wherein, air-cooled mode is, on outside motor armature spindle, fan is housed, and the heat of motor internal passes to fin on electric machine casing and end cap, and then shed by heat by fan, the radiating effect of this mode is poor; Water-cooling pattern arranges cyclic water channel in electric machine casing, the heat of motor internal passes to electric machine casing and end cap, then taken away by the heat of the recirculated water in electric machine casing by electric machine casing, this mode easily produces incrustation scale in electric machine casing, thus cooling effect is deteriorated.Above two kinds of methods all adopt the method indirectly cooled motor winding, and therefore, cooling effect is not optimum.
Traditional oil cooling mode is in motor, inject a certain amount of cold oil, is with moving vane to stir and cold oil is splashed in electric machine casing the effect reaching cooling when rotating by rotor.But this oil cooling mode can produce cold oil and produce resistance to the rotation of rotor, directly cause energy consumption rising, efficiency reduction.
Therefore, there is the motor of another kind of circulating oil cooling mode, as depicted in figs. 1 and 2.Figure 1 shows that the end view of motor.Comprising housing 200 and on multiple fuel feed holes 201.Figure 2 shows that the cutaway view of the motor shown in Fig. 1 along A-A ' direction.Wherein, motor crankshaft 102, electric machine casing 100, the stator 101 be fixed on electric machine casing 100 inwall, the rotor 106 be fixed on motor crankshaft 102 is comprised; Wherein, cyclically flow in electric machine casing by the oilhole on electric machine casing 201 by Fuel Tanking Unit 103 and oil pump 105 for the oil cooled, and form cyclic water channel 104.By the cold oil in housing, the electric machine casing that shed to by the heat in motor is outside, thus reaches the effect of cooling motor.
But, above-mentioned circulating oil cooling mode due to the cold oil in stator coil and electric machine casing be not the mode directly immersed, owing to there being the isolation of electric machine casing between stator coil and cold oil, sealing effectiveness is poor, therefore cooling effect still can be caused slack-off, and implementation structure is complicated.
Summary of the invention
In view of this, the type of cooling that the present invention adopts is to provide a kind of oil cooling method and oil-cooled motor by stator coil and cold oil being carried out the motor sealed.
Employing transformer oil be coolant (also can adopt other coolants) to motor winding direct cooling mode, not only increase cooling effect, also improve the efficiency of motor, reduce the noise of motor, extend the useful life of motor.
For achieving the above object, the invention provides a kind of machine winding coil direct oil cooling method and the direct oil cooling of coil windings but electric system, comprising:
Front end housing, rear end cap, stator coil winding, housing;
Described stator coil winding is fixing on the housing;
Described housing comprises oil-in and oil-out, for the formation of cold oil path;
Described front end housing, rear end cap, housing form a closed cavity by package parts, and the coil windings of described motor is sealed in this closed cavity.
Wherein,
Also comprise Fuel Tanking Unit, fuel delivery device;
Described Fuel Tanking Unit is for storing described coolant;
Described coolant, for connecting described Fuel Tanking Unit, described oil-in and described oil-out, is cyclically passed through described closed cavity by described fuel delivery device.
Wherein,
Described Fuel Tanking Unit comprises oil-in, for injecting coolant; And
Drain tap, for discharging the steam in described closed cavity.
Wherein,
Described coolant is transformer oil.
Wherein,
Described package parts are sealed circular ring;
Described sealed circular ring is sealed by sealing gasket and described front end housing and rear end cap.
Wherein,
Described sealed circular ring is sealed by fluid sealant and stator;
Described fluid sealant is epoxy resin, AB glue.
Invention further provides a kind of direct oil cooling method of machine winding coil, described motor comprises front end housing, rear end cap, stator coil winding, and described method comprises:
Stator and described front end housing, rear end cap are sealed, thus makes described seal stator in described closed cavity;
By coolant cyclically by described closed cavity.
Provided by the present inventionly stator coil can be made directly to be immersed in cold oil cool fast, and not affect the running of rotor completely.
Accompanying drawing explanation
Fig. 1 is the electric machine casing end view of prior art;
Fig. 2 is the motor cutaway view along the A-A ' direction shown in Fig. 1;
Fig. 3 is according to motor cutaway view of the present invention;
Fig. 4 is the seal ring structure schematic diagram in Fig. 3.
Embodiment
Below in conjunction with accompanying drawing and embodiments of the invention, technical scheme of the present invention is described in further detail.
Figure 3 shows that the structural representation of the motor according to oil cooling mode of the present invention.Wherein, same as shown in Figure 2 or intimate parts repeat no more.
Motor of the present invention comprises housing 10, stator 11, front end housing 12, rear end cap 13, fuel reserve tank 17, oil pump 18, heat dissipation tank 19, oil pipe 20, oil-in 23, oil return opening 24.
Wherein, motor front-end and back-end are packaged with front end housing 12 and rear end cap 13 respectively, and axle is arranged in the axis hole of front end housing 12 and rear end cap 13 by bearing; The inwall of electric machine casing 10 is fixed with stator 11.
Wherein, with the electric machine structure of the prior art shown in Fig. 2 unlike, electric machine casing 10 does not arrange multiple oilhole and oil circuit is arranged on electric machine casing inside; But on electric machine casing 10, be provided with oil-in 23 and oil-out 24; And, pass through package parts, such as the front end housing 12 of stator two ends and motor, rear end cap 13 encapsulate by two sealed circular rings 15,16 respectively, and pass through seal member, such as two sealing gaskets 26 are respectively by encapsulation annulus 15,16 and seal between front end housing 12 and rear end cap 13, thus the surrounding of stator 11 defines an airtight cavity, thus the leakage of cold oil can be prevented.Wherein, sealed circular ring 15,16 can be as shown in Figure 4.
Wherein, sealed circular ring 15,16 can be sealed by fluid sealant and stator;
Preferably, fluid sealant is epoxy resin, AB glue.
It will be understood by those skilled in the art that the package parts that can also utilize other and seal member carry out encapsulating and sealing.
Thus, pass through fuel delivery device, such as comprise oil pipe 20, Fuel Tanking Unit 17, oil pump 18 and radiator 19, coolant is injected in the cavity residing for stator coil from oil-in 23, coolant) passed through by the gap 22 between stator coil, and flow out from oil return opening 24, thus form circulating oil path.Like this, stator coil can be immersed in cold oil, and not affect the running of rotor.Like this, the heat that motor winding produces can directly be dissipated by oil pump, heat dissipation tank 19 by coolant.
Wherein, Fuel Tanking Unit 27 is provided with pouring orifice 20 and drain tap 21, can coolant is injected in Fuel Tanking Unit by pouring orifice 20; By drain tap 21, the steam that the heating of bore of stator internal cause can be produced is discharged, thus prevents the excessive coolant that causes of the pressure in chamber cannot at bore of stator Inner eycle.
Wherein, coolant requires good insulation property and good heat dispersion, and preferably, coolant can use transformer oil.
The above, be only preferred embodiment of the present invention, and be not used to limit protection scope of the present invention.
Claims (7)
1. a coil windings directly cooled machine system, comprising:
Front end housing, rear end cap, stator coil winding, housing;
Described stator coil winding is fixing on the housing;
Described housing comprises oil-in and oil-out, for the formation of cold oil path;
Described front end housing, rear end cap, housing form a closed cavity by package parts, and the coil windings of described motor is sealed in this closed cavity.
2. coil windings directly cooled machine system according to claim 1, is characterized in that:
Also comprise Fuel Tanking Unit, fuel delivery device;
Described Fuel Tanking Unit is for storing described coolant;
Described coolant, for connecting described Fuel Tanking Unit, described oil-in and described oil-out, is cyclically passed through described closed cavity by described fuel delivery device.
3. coil windings directly cooled machine system according to claim 2, is characterized in that:
Described Fuel Tanking Unit comprises oil-in, for injecting coolant; And
Drain tap, for discharging the steam in described closed cavity.
4. coil windings directly cooled machine system according to claim 1, is characterized in that:
Described coolant is transformer oil.
5. oil-cooled motor according to claim 1, is characterized in that:
Described package parts are sealed circular ring;
Described sealed circular ring is sealed by sealing gasket and described front end housing and rear end cap.
6. coil windings directly cooled machine system according to claim 5, is characterized in that:
Described sealed circular ring is sealed by fluid sealant and stator;
Described fluid sealant is epoxy resin, AB glue.
7. the direct oil cooling method of machine winding coil, described motor comprises front end housing, rear end cap, stator coil winding, and described method comprises:
Stator and described front end housing, rear end cap are sealed, thus makes described seal stator in described closed cavity;
By coolant cyclically by described closed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310263577.7A CN104253509A (en) | 2013-06-28 | 2013-06-28 | Direct-cooling method and system for motor winding coils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310263577.7A CN104253509A (en) | 2013-06-28 | 2013-06-28 | Direct-cooling method and system for motor winding coils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104253509A true CN104253509A (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310263577.7A Pending CN104253509A (en) | 2013-06-28 | 2013-06-28 | Direct-cooling method and system for motor winding coils |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471131A (en) * | 2016-01-19 | 2016-04-06 | 苏州凯博易控驱动技术有限公司 | Cooling mechanism for stator in oil-immersed motor |
| CN106160341A (en) * | 2016-07-05 | 2016-11-23 | 北京超同步伺服股份有限公司 | There is the motor of direct-cooled structure |
| CN106451863A (en) * | 2016-10-19 | 2017-02-22 | 长春工业大学 | Motor rotor cooling structure |
| CN106712391A (en) * | 2017-02-21 | 2017-05-24 | 福安市裕兴机械有限公司 | Self-circulating cooling oil pump motor |
| CN106884810A (en) * | 2017-04-11 | 2017-06-23 | 浙江贝德泵业有限公司 | A kind of air conditioning pump of low noise |
| CN109756073A (en) * | 2017-11-01 | 2019-05-14 | 中车株洲电力机车研究所有限公司 | A kind of motor |
| CN111817484A (en) * | 2019-04-11 | 2020-10-23 | 日本电产株式会社 | Drive device and method for manufacturing drive device |
| WO2022142483A1 (en) * | 2020-12-29 | 2022-07-07 | 浙江盘毂动力科技有限公司 | Electric motor stator cooling device, cooling medium discharge structure for double-stator electric motor, and electric motor |
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| CN101111985A (en) * | 2005-02-02 | 2008-01-23 | 西门子公司 | Motor device with thermosiphon cooling of its superconductive rotor winding |
| CN101675249A (en) * | 2007-05-09 | 2010-03-17 | 西门子公司 | Compressor system for underwater use in the offshore area |
| CN201797411U (en) * | 2010-08-31 | 2011-04-13 | 付强 | Motor cooling structure |
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| CN102593975A (en) * | 2012-03-23 | 2012-07-18 | 张承宁 | Cooling structure of motor stator and manufacture method thereof |
| CN102906969A (en) * | 2010-04-23 | 2013-01-30 | 株式会社Ihi | Rotating machine |
| CN103151879A (en) * | 2013-04-03 | 2013-06-12 | 天津市松正电动汽车技术股份有限公司 | Liquid-cooled motor |
| CN203482017U (en) * | 2013-06-28 | 2014-03-12 | 殷天明 | Direct cooling system for motor winding coil |
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| CN101111985A (en) * | 2005-02-02 | 2008-01-23 | 西门子公司 | Motor device with thermosiphon cooling of its superconductive rotor winding |
| CN101675249A (en) * | 2007-05-09 | 2010-03-17 | 西门子公司 | Compressor system for underwater use in the offshore area |
| CN102906969A (en) * | 2010-04-23 | 2013-01-30 | 株式会社Ihi | Rotating machine |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471131A (en) * | 2016-01-19 | 2016-04-06 | 苏州凯博易控驱动技术有限公司 | Cooling mechanism for stator in oil-immersed motor |
| CN105471131B (en) * | 2016-01-19 | 2023-08-25 | 凯博易控驱动(苏州)股份有限公司 | Cooling mechanism for stator in oil immersed motor |
| CN106160341A (en) * | 2016-07-05 | 2016-11-23 | 北京超同步伺服股份有限公司 | There is the motor of direct-cooled structure |
| CN106451863A (en) * | 2016-10-19 | 2017-02-22 | 长春工业大学 | Motor rotor cooling structure |
| CN106712391A (en) * | 2017-02-21 | 2017-05-24 | 福安市裕兴机械有限公司 | Self-circulating cooling oil pump motor |
| CN106712391B (en) * | 2017-02-21 | 2019-07-09 | 福安市裕兴机械有限公司 | Self-loopa cools down Oil pump electrical machinery |
| CN106884810A (en) * | 2017-04-11 | 2017-06-23 | 浙江贝德泵业有限公司 | A kind of air conditioning pump of low noise |
| CN109756073A (en) * | 2017-11-01 | 2019-05-14 | 中车株洲电力机车研究所有限公司 | A kind of motor |
| CN109756073B (en) * | 2017-11-01 | 2021-12-21 | 中车株洲电力机车研究所有限公司 | Electric machine |
| CN111817484A (en) * | 2019-04-11 | 2020-10-23 | 日本电产株式会社 | Drive device and method for manufacturing drive device |
| WO2022142483A1 (en) * | 2020-12-29 | 2022-07-07 | 浙江盘毂动力科技有限公司 | Electric motor stator cooling device, cooling medium discharge structure for double-stator electric motor, and electric motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160104 Address after: 551700 Guizhou Province, Bijie city seven cities in Northwest Guizhou Industrial Park A District Applicant after: Bijie Tian Yu power Science and Technology Co., Ltd. Address before: 100044 Beijing city Haidian District Xizhimen Yuen Electrical Engineering Building Room 208 No. 3 Applicant before: Yin Tianming Applicant before: Wang Yan |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141231 |