CN102638133B - Permanent magnet motor - Google Patents
Permanent magnet motor Download PDFInfo
- Publication number
- CN102638133B CN102638133B CN201210079418.7A CN201210079418A CN102638133B CN 102638133 B CN102638133 B CN 102638133B CN 201210079418 A CN201210079418 A CN 201210079418A CN 102638133 B CN102638133 B CN 102638133B
- 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.)
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- 238000001816 cooling Methods 0.000 claims abstract description 14
- 239000006071 cream Substances 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract 3
- 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
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000005516 engineering process Methods 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
- 230000000630 rising effect Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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 technical field of motor manufacture, be related specifically to a kind of magneto.
Background technology
Along with the development of electric automobile, high density, high efficiency rare-earth permanent-magnet electric machine is applied more and more widely.The power density of current magneto is more and more higher, for ensureing the reliability of motor, the heat dissipation problem of motor must be solved, because the rising of temperature, decreasing insulating or the coil burnout of stator coil may be made, its life-span also can decline, in addition, p-m rotor made by rare earth may produce demagnetization in high temperature environments or the permanent magnetism life-span also declines to some extent, so present stage adopts water-cooled machine substantially, namely water-cooling water jackets is utilized, heat stator coil copper loss produced is by heat conducting mode, heat is passed to stator core, the iron loss heat of the copper loss of coil and self generation is passed to water jacket by stator core again, water jacket is taken away by liquid again.But water cooling method is in the high power density motor higher to cooling requirements, owing to transmitting thermal resistance, rotor heat conductivility is also poor simultaneously, and the efficiency that water-band walks heat is not high, motor internal temperature can not be reduced timely and effectively, the temperature of coil and permanent magnetism may be caused too high.Another structure is oil immersed type motor, and namely motor is immersed in oil, by conduction oil uniformly by heat trnasfer to water jacket wall, but this structure operates due to rotor in oil, its resistance loss is comparatively large, and energy loss is comparatively large, may increase caloric value.
Summary of the invention
The object of this invention is to provide a kind of magneto with good cooling structure, effectively can solve the problem of motor radiating, effectively reduce motor temperature, extend motor useful life.
Magneto of the present invention comprises housing, rotor and stator, described stator is fixed on inner walls, described rotor is installed in housing by motor shaft, and key is that described lower housing portion is provided with a shoe cream room, and the sidewall of described housing and rear wall are equipped with housing oil duct; Described motor shaft inside is provided with slinger, and what the axial wall of motor shaft was provided with the radial direction communicated with slinger spills oilhole; One end of described housing oil duct is connected with shoe cream room by oil pump, and the other end is connected with slinger; The roof of described shoe cream room is provided with spill port.
In the course of work of motor, the cold oil in shoe cream room is drawn in housing oil duct by oil pump, housing oil duct and stator close, thus stator heat to be taken away; After cold oil in housing oil duct flow into slinger, rotor to enclosure interior and line bag can be spilt through spilling oilhole along with the rotation of motor shaft, thus rotor and line bag are cooled, the cold oil accumulated in housing finally flows back in shoe cream room via spill port, completes a cyclic process.Spill port is arranged at the roof of shoe cream room, and the cold oil gathered in such housing can not gather too high, and the resistance of rotor therefore can not be caused excessive.
Further, described 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, thus improves the cooling effect to stator,
Further, bottom or the side of described shoe cream room are provided with water-cooling base plate, are provided with water pipe in described water-cooling base plate, and external circulating water pipe can be utilized like this to cool shoe cream room.
Further, the periphery of described housing is provided with air-cooled radiator, and air-cooled convection current can be leaned on like this to dispel the heat to housing.
Further, described housing is provided with the oil pressure valve be connected with shoe cream room, to monitor the oil pressure in shoe cream room, ensures safety.
Further, described housing is provided with the oil scale be connected with shoe cream room, to detect the cold oil situation in shoe cream room.
Further, described housing is provided with the oil filler be connected with shoe cream room, conveniently carries out supplementing of cold oil to shoe cream room.
Magneto of the present invention has unique cooling structure, good heat dissipation effect, can not cause rotary resistance simultaneously, effectively can solve the problem of motor radiating, effectively reduce motor temperature rotor, extends motor useful life.
Accompanying drawing explanation
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, by the description to embodiment, the effect and operation principle etc. of the specific embodiment of the present invention as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail.
Embodiment 1:
As shown in Figure 1, 2, the housing 4 of the magneto of the present embodiment is cast aluminum construction, 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 motor case 4.After stator 1 loads, form oil circuit by stator core 1 and shell aperture spiral oil duct 5, after such cold oil flows through spiral oil duct 5, its oil can contact with motor stator 1, directly cools.
One end of spiral oil duct 5 is connected with the oil pump 9 in shoe cream room 6, the other end is connected with housing rear oil duct 12 reserved in housing rear end lid, when the oil in shoe cream room 6 pumps into after spiral oil duct 5 through oil pump 9, the slinger 18 of motor shaft 3 inside is flowed into again by rear wall oil duct 12, under acting in conjunction by the rotation of oil pump 9 oil pressure and motor shaft 3, the copper cash bag that oilhole 13 spills end surfaces to rotor 2 and stator 1 is spilt on motor shaft 3, the copper cash bag of direct cooled rotor 2 and stator 1, then cold oil leans on gravity current to the bottom of housing 4, flow back to shoe cream room 6 from spill port 14, complete oil circulation.
After oil circuit completes circulation, the heat of motor internal taken away by cold oil, cold oil is originally when casing spiral oil duct 5, and the air-cooled radiator 11 on casing 4 surface, by air-cooled effect, dissipates a part of heat towards periphery in air, the bottom water-cooling base plate 8 of shoe cream room 6 in addition, be provided with water pipe in water-cooling base plate 8, external cooling circulating water, flowed into through water inlet 7, delivery port 10 flows out, and dispels the heat to help shoe cream room 6.
Motor top arranges cold oil filler 16 in addition, conveniently add, because motor internal expands with heat and contract with cold effect, motor top arranges an oil pressure valve 17, the sidepiece of shoe cream room 6 arranges oil scale 15, when being convenient to filling or regular maintenance check inner oil mass, during cold oil filling, only need ensure that the height of cold oil is at about 80% of shoe cream room 6, forbid covering spill port 14, if the height of cold oil covers rotor 2, the damping loss of oil during running may be strengthened, lower efficiency.
Claims (5)
1. a magneto, comprise housing, rotor and stator, described stator is fixed on inner walls, and described rotor is installed in housing by motor shaft, it is characterized in that described lower housing portion is provided with a shoe cream room, the sidewall of described housing and rear wall are equipped with oil duct and jointly form housing oil duct; Described motor shaft inside is provided with slinger, and what the axial wall of motor shaft was provided with the radial direction communicated with slinger spills oilhole; One end of described housing oil duct is connected with shoe cream room by oil pump, and the other end is connected with slinger; The roof of described shoe cream room is provided with spill port; Described housing oil duct is divided into spirality in the flanking part of stator; Bottom or the side of described shoe cream room are provided with water-cooling base plate, are provided with water pipe in described water-cooling base plate.
2. magneto according to claim 1, is characterized in that the periphery of described housing is provided with air-cooled radiator.
3. magneto according to claim 1, is characterized in that described housing is provided with the oil pressure valve be connected with shoe cream room.
4. magneto according to claim 1, is characterized in that described housing is provided with the oil scale be connected with shoe cream room.
5. magneto according to claim 1, is characterized in that described housing is provided with the oil filler be connected 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 CN102638133A (en) | 2012-08-15 |
| CN102638133B true 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) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2858777B1 (en) | 2012-06-12 | 2022-04-27 | Husqvarna Ab | Electric cutting system |
| JP5916223B2 (en) * | 2012-12-05 | 2016-05-11 | トヨタ自動車株式会社 | Cooling structure of slip ring device |
| 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 |
| JP6386078B2 (en) * | 2014-03-31 | 2018-09-05 | 深▲せん▼市智行単軸双輪駆動技術有限公司 | Shock absorption mechanism of steering 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 |
| CN110915108B (en) * | 2017-07-28 | 2022-04-15 | 日本电产株式会社 | Motor |
| CN111033972B (en) * | 2017-09-08 | 2022-02-22 | 日本电产株式会社 | Drive device |
| CN110022034B (en) * | 2019-03-11 | 2020-05-19 | 华中科技大学 | Cooling oil circuit system integrating motor and drive controller |
| 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 |
| CN114906308B (en) * | 2022-06-23 | 2024-03-01 | 宁波海伯集团有限公司 | Electric propeller for ship |
Citations (5)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7489057B2 (en) * | 2007-05-01 | 2009-02-10 | Tesla Motors, Inc. | Liquid cooled rotor assembly |
-
2012
- 2012-03-23 CN CN201210079418.7A patent/CN102638133B/en active Active
Patent Citations (5)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102638133A (en) | 2012-08-15 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |