CN102638133A - Permanent magnet motor - Google Patents
Permanent magnet motor Download PDFInfo
- Publication number
- CN102638133A CN102638133A CN2012100794187A CN201210079418A CN102638133A CN 102638133 A CN102638133 A CN 102638133A CN 2012100794187 A CN2012100794187 A CN 2012100794187A CN 201210079418 A CN201210079418 A CN 201210079418A CN 102638133 A CN102638133 A CN 102638133A
- Authority
- CN
- China
- Prior art keywords
- oil
- motor
- housing
- shoe cream
- cream room
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 239000006071 cream Substances 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention provides a permanent magnet motor in a favorable cooling structure, which can effectively solve the problem of motor radiation to cool the motor and prolong the service life of the motor. The permanent magnet motor comprises a casing, a rotor and a stator, the stator is fixed to the inner wall of the casing, and the rotor is mounted in the casing through a motor shaft. The permanent magnet motor is characterized in that the lower portion of the casing is provided with an oil storage cavity, the side wall and the rear wall of the casing are provided with casing oil ways, a motor shaft is internally provided with a shaft oil way, the wall of the motor shaft is provided with a radial oil spraying hole communicated with the shaft oil way, one end of each casing oil is connected with the oil storage cavity through an oil pump, the other end of each casing oil is connected with the shaft oil way, and the top wall of the oil storage cavity is provided with an oil return hole. The permanent magnet motor in the unique cooling structure is effective in radiation without generating rotation resistance to the rotor, and accordingly the problem of motor radiation can be effectively solved, the motor can be effectively cooled, and the service life of the motor can be prolonged.
Description
Technical field
The invention belongs to the motor manufacturing technology field, specially refer to a kind of magneto.
Background technology
Along with the development of electric automobile, high density, the application more and more widely of high efficiency rare-earth permanent-magnet electric machine.The power density of magneto is increasingly high at present, for guaranteeing the reliability of motor, must solve the heat dissipation problem of motor; Because the rising of temperature, may make the decreasing insulating or the coil burnout of stator coil, its life-span also can descend; In addition, the made p-m rotor of rare earth possibly produce demagnetization under hot environment or the permanent magnetism life-span also descends to some extent, so present stage is adopted water-cooled machine basically; Promptly utilize the water-cooled water jacket, the heat that the stator coil copper loss is produced is passed to stator core through heat conducting mode with heat; Stator core is passed to water jacket with the copper loss of coil and the iron loss heat that self produces again, and water jacket is taken away through liquid again.But water cooling method is in requiring than higher high power density motor to heat radiation; Owing to transmit thermal resistance, the rotor heat conductivility is also relatively poor simultaneously, and the efficient that water is taken away heat is not high; Can not reduce the motor internal temperature timely and effectively, possibly cause the temperature of coil and permanent magnetism too high.A kind of in addition structure is the oil immersed type motor, and promptly motor is immersed in the oil, leans on conduction oil uniformly heat to be passed to water wall, but this structure is because rotor turns round in oil, and its resistance loss is bigger, and energy loss is bigger, may increase caloric value.
Summary of the invention
The purpose of this invention is to provide a kind of magneto, can effectively solve the problem of motor radiating, effectively reduce motor temperature, prolong motor useful life with good cooling structure.
Magneto of the present invention comprises housing, rotor and stator; Said stator is fixed in inner walls; Said rotor is installed in the housing through motor shaft, and key is that said lower housing portion is provided with a shoe cream room, and the sidewall of said housing and rear wall are equipped with the housing oil duct; Said motor shaft inside is provided with slinger, the axial wall of motor shaft be provided with communicate with slinger radially spill oilhole; One end of said housing oil duct links to each other with shoe cream room through oil pump, and the other end links to each other with slinger; The roof of said shoe cream room is provided with spill port.
In the course of work of motor, oil pump is drawn into the cold oil in the shoe cream room in the housing oil duct, and housing oil duct and stator are approaching, thereby the stator heat is taken away; After cold oil in the housing oil duct flow into slinger; Can spill rotor and line bag through spilling oilhole along with the rotation of motor shaft to enclosure interior; Thereby rotor and line bag are cooled off, and the cold oil that accumulates in the housing finally flows back in the shoe cream room via spill port, accomplishes a cyclic process.Spill port is arranged at the roof of shoe cream room, and the cold oil that is gathered in the housing so can not gather too high, therefore can not cause the resistance of rotor excessive.
Further, said housing oil duct is divided into spirality in the flanking part of stator, can strengthen the contact area of housing oil duct and stator like this, thereby improves the cooling effect to stator,
Further, the bottom or the side of said shoe cream room are provided with water-cooling base plate, are provided with water pipe in the said water-cooling base plate, can utilize external circulating water pipe that shoe cream room is cooled off like this.
Further, the periphery of said housing is provided with air-cooled radiator, can lean on air-cooled convection current that housing is dispelled the heat like this.
Further, said housing is provided with the oil pressure valve that links to each other with shoe cream room, and the oil pressure with in the monitoring shoe cream room guarantees safety.
Further, said housing is provided with the oil scale that links to each other with shoe cream room, to detect the cold oil situation in the shoe cream room.
Further, said housing is provided with the oil filler that links to each other with shoe cream room, conveniently shoe cream room is carried out replenishing of cold oil.
Magneto of the present invention has unique cooling structure, and good heat dissipation effect can not cause rotary resistance to rotor simultaneously, can effectively solve the problem of motor radiating, effectively reduces motor temperature, prolongs motor useful life.
Description of drawings
Fig. 1 is the cutaway view of magneto of the present invention.
Fig. 2 is the front view of magneto of the present invention.
Embodiment
Contrast accompanying drawing below; Through the description to embodiment, the effect of mutual alignment between the shape of specific embodiments of the invention such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are done further to specify.
Embodiment 1:
Like Fig. 1, shown in 2; The housing 4 of the magneto of present embodiment is the cast aluminium structure, and the surface of housing 4 is cast with air-cooled radiator 11, and the madial wall of housing 4 is provided with helical opening oil duct 5; The bottom of housing 4 is provided with shoe cream room 6, and the stator 1 of motor directly adopts hot jacket to put in the motor case 4.After stator 1 is packed into, lean on stator core 1 and shell aperture spiral oil duct 5 to form oil circuit, after cold oil was flowed through spiral oil duct 5 like this, its oil can contact with motor stator 1, directly cools off.
One end of spiral oil duct 5 links to each other with oil pump 9 in the shoe cream room 6; The housing rear wall oil duct of reserving in the other end and the housing rear end cap 12 links to each other, and after the oil in the shoe cream room 6 pumps into spiral oil duct 5 through oil pump 9, flows into the inner slinger 18 of motor shafts 3 through rear wall oil duct 12 again; Lean under the acting in conjunction of rotation of oil pump 9 oil pressure and motor shaft 3; The oilhole 13 that spills on motor shaft 3 spills to the end surfaces of rotor 2 and the copper cash bag of stator 1, the copper cash bag of direct cooled rotor 2 and stator 1, and cold oil leans on the bottom of gravity current to housing 4 then; Flow back to the shoe cream room 6 from spill port 14, accomplish oil circulation.
After oil circuit was accomplished circulation, cold oil was taken away the heat of motor internal, and cold oil is originally when casing spiral oil duct 5; The air-cooled radiator 11 on casing 4 surfaces leans on air-cooled effect, dissipates a part of heat in the ambient air, in addition the bottom water-cooling base plate 8 of shoe cream room 6; Be provided with water pipe in the water-cooling base plate 8, external cooling circulating water flows into through water inlet 7; Delivery port 10 flows out, to help shoe cream room 6 heat radiations.
Motor top is provided with cold oil filler 16 in addition, the convenient adding, the effect because motor internal expands with heat and contract with cold; Motor top is provided with an oil pressure valve 17, and the sidepiece of shoe cream room 6 is provided with oil scale 15, when being convenient to annotate or regular maintenance check inner oil mass; During the cold oil filling, the height that only needs to guarantee cold oil gets final product at about 80% of shoe cream room 6, forbids covering spill port 14; If the height of cold oil covers rotor 2, the damping loss of oil lowers efficiency in the time of possibly strengthening running.
Claims (7)
1. magneto; Comprise housing, rotor and stator, said stator is fixed in inner walls, and said rotor is installed in the housing through motor shaft; It is characterized in that said lower housing portion is provided with a shoe cream room, the sidewall of said housing and rear wall are equipped with the housing oil duct; Said motor shaft inside is provided with slinger, the axial wall of motor shaft be provided with communicate with slinger radially spill oilhole; One end of said housing oil duct links to each other with shoe cream room through oil pump, and the other end links to each other with slinger; The roof of said shoe cream room is provided with spill port.
2. magneto according to claim 1 is characterized in that said housing oil duct is divided into spirality in the flanking part of stator.
3. magneto according to claim 1 and 2 is characterized in that the bottom of said shoe cream room or side are provided with water-cooling base plate, were provided with water pipe in the said water-cooling base plate.
4. magneto according to claim 3 is characterized in that the periphery of said housing is provided with air-cooled radiator.
5. magneto according to claim 3 is characterized in that said housing is provided with the oil pressure valve that links to each other with shoe cream room.
6. magneto according to claim 3 is characterized in that said housing is provided with the oil scale that links to each other with shoe cream room.
7. magneto according to claim 3 is characterized in that said housing is provided with the oil filler that links to each other with shoe cream room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210079418.7A CN102638133B (en) | 2012-03-23 | 2012-03-23 | Permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210079418.7A CN102638133B (en) | 2012-03-23 | 2012-03-23 | Permanent magnet motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102638133A true CN102638133A (en) | 2012-08-15 |
| CN102638133B CN102638133B (en) | 2015-04-08 |
Family
ID=46622420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210079418.7A Active CN102638133B (en) | 2012-03-23 | 2012-03-23 | Permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102638133B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296824A (en) * | 2013-05-20 | 2013-09-11 | 精进电动科技（北京）有限公司 | Automotive motor and oil cooling system thereof |
| CN104885343A (en) * | 2012-12-05 | 2015-09-02 | 丰田自动车株式会社 | Cooling structure for slip ring device |
| CN106488868A (en) * | 2014-03-31 | 2017-03-08 | 深圳市智行单轴双轮驱动技术有限公司 | A kind of double oil channel structures of steer motor |
| CN106787452A (en) * | 2015-11-23 | 2017-05-31 | 南车株洲电力机车研究所有限公司 | A kind of oil-cooled motor |
| CN107476976A (en) * | 2016-06-07 | 2017-12-15 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor and compressor system |
| WO2019021696A1 (en) * | 2017-07-28 | 2019-01-31 | 日本電産株式会社 | Motor |
| WO2019049464A1 (en) * | 2017-09-08 | 2019-03-14 | 日本電産株式会社 | Drive device |
| CN110022034A (en) * | 2019-03-11 | 2019-07-16 | 华中科技大学 | A kind of motor and the integrated cooling oil path system of drive control device |
| US10486250B2 (en) | 2012-06-12 | 2019-11-26 | Husqvarna Ab | Electric cutting system |
| CN111585390A (en) * | 2020-05-21 | 2020-08-25 | 张凌峰 | Building electrical equipment alarm device |
| CN114906308A (en) * | 2022-06-23 | 2022-08-16 | 宁波海伯集团有限公司 | Electric propeller for ship |
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| US5319272A (en) * | 1992-07-14 | 1994-06-07 | Eemco/Datron, Inc. | Miniature rotating rectifier assembly |
| CN2184287Y (en) * | 1993-12-13 | 1994-11-30 | 重庆电机厂 | Electric motor for liquid state coolant cooling machine |
| CN1249558A (en) * | 1998-09-28 | 2000-04-05 | 斯沃奇集团管理服务股份公司 | Liquid-cooled asynchronous dynamo |
| US20080272661A1 (en) * | 2007-05-01 | 2008-11-06 | Tesla Motors, Inc. | Liquid cooled rotor assembly |
| US7538458B2 (en) * | 2001-07-13 | 2009-05-26 | Voith Patent Gmbh | Construction and method of an electric motor drive |
| CN201355790Y (en) * | 2008-12-30 | 2009-12-02 | 上海大郡自动化系统工程有限公司 | Oil-cooled motor |
-
2012
- 2012-03-23 CN CN201210079418.7A patent/CN102638133B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5319272A (en) * | 1992-07-14 | 1994-06-07 | Eemco/Datron, Inc. | Miniature rotating rectifier assembly |
| CN2184287Y (en) * | 1993-12-13 | 1994-11-30 | 重庆电机厂 | Electric motor for liquid state coolant cooling machine |
| CN1249558A (en) * | 1998-09-28 | 2000-04-05 | 斯沃奇集团管理服务股份公司 | Liquid-cooled asynchronous dynamo |
| US7538458B2 (en) * | 2001-07-13 | 2009-05-26 | Voith Patent Gmbh | Construction and method of an electric motor drive |
| US20080272661A1 (en) * | 2007-05-01 | 2008-11-06 | Tesla Motors, Inc. | Liquid cooled rotor assembly |
| CN201355790Y (en) * | 2008-12-30 | 2009-12-02 | 上海大郡自动化系统工程有限公司 | Oil-cooled motor |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10486250B2 (en) | 2012-06-12 | 2019-11-26 | Husqvarna Ab | Electric cutting system |
| CN104885343A (en) * | 2012-12-05 | 2015-09-02 | 丰田自动车株式会社 | Cooling structure for slip ring device |
| CN104885343B (en) * | 2012-12-05 | 2017-04-26 | 丰田自动车株式会社 | Cooling structure for slip ring device |
| CN103296824A (en) * | 2013-05-20 | 2013-09-11 | 精进电动科技（北京）有限公司 | Automotive motor and oil cooling system thereof |
| CN103296824B (en) * | 2013-05-20 | 2015-12-23 | 精进电动科技（北京）有限公司 | The oil cooling system of electric motor of automobile and a kind of electric motor of automobile |
| CN106488868B (en) * | 2014-03-31 | 2019-06-21 | 广东华旵智动行运系统研究院有限公司 | A kind of double oil channel structures of steering motor |
| CN106488868A (en) * | 2014-03-31 | 2017-03-08 | 深圳市智行单轴双轮驱动技术有限公司 | A kind of double oil channel structures of steer motor |
| CN106787452A (en) * | 2015-11-23 | 2017-05-31 | 南车株洲电力机车研究所有限公司 | A kind of oil-cooled motor |
| CN107476976A (en) * | 2016-06-07 | 2017-12-15 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor and compressor system |
| WO2019021696A1 (en) * | 2017-07-28 | 2019-01-31 | 日本電産株式会社 | Motor |
| JPWO2019021696A1 (en) * | 2017-07-28 | 2020-05-28 | 日本電産株式会社 | motor |
| US11289980B2 (en) | 2017-07-28 | 2022-03-29 | Nidec Corporation | Motor |
| WO2019049464A1 (en) * | 2017-09-08 | 2019-03-14 | 日本電産株式会社 | Drive device |
| CN111033972B (en) * | 2017-09-08 | 2022-02-22 | 日本电产株式会社 | Drive device |
| CN111033972A (en) * | 2017-09-08 | 2020-04-17 | 日本电产株式会社 | Drive device |
| CN110022034A (en) * | 2019-03-11 | 2019-07-16 | 华中科技大学 | A kind of motor and the integrated cooling oil path system of drive control device |
| CN111585390B (en) * | 2020-05-21 | 2021-11-23 | 义乌市研创工业设计有限公司 | Building electrical equipment alarm device |
| CN111585390A (en) * | 2020-05-21 | 2020-08-25 | 张凌峰 | Building electrical equipment alarm device |
| CN114906308A (en) * | 2022-06-23 | 2022-08-16 | 宁波海伯集团有限公司 | Electric propeller for ship |
| CN114906308B (en) * | 2022-06-23 | 2024-03-01 | 宁波海伯集团有限公司 | Electric propeller for ship |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102638133B (en) | 2015-04-08 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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