CN2650383Y - Permanent-magnet direct-current dynamo for electric automobile - Google Patents
Permanent-magnet direct-current dynamo for electric automobile Download PDFInfo
- Publication number
- CN2650383Y CN2650383Y CN 03210665 CN03210665U CN2650383Y CN 2650383 Y CN2650383 Y CN 2650383Y CN 03210665 CN03210665 CN 03210665 CN 03210665 U CN03210665 U CN 03210665U CN 2650383 Y CN2650383 Y CN 2650383Y
- Authority
- CN
- China
- Prior art keywords
- end cover
- casing
- permanent magnet
- rotor
- motor
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a permanent magnet DC motor for electric automobiles, which belongs to the motor manufacturing technical field. The utility model is mainly composed of a casing (7), a front end cover (1) and a rear end cover (10) arranged on the both sides of the casing, bearings (11) arranged in the front end cover and the rear end cover, a rotating shaft (12) arranged between the bearings of the front end cover and the rear end cover, a rotor (8) arranged on the rotating shaft, a permanent-magnet magnetic pole (5) arranged on the inner side of the casing corresponding to the rotor and provided with a galvanizing covering (6), a brush carrier (2) arranged on the inner side of the front end cover and provided with an electric brush (3), a commutator (4) arranged between the front end cover and the rotor, a fan (9) arranged in the casing and connected with the rotating shaft, etc. The utility model has the advantage of reasonable design. Compared with the prior art, the utility model has the characteristics of simple structure, small volume, light weight, high efficiency, good control performance, reliable operation, etc., and the utility model can reach high performance which is difficult for an electricity excitation motor to reach and satisfy the using requirement of the electric automobiles.
Description
Technical field
The utility model relates to a kind of used for electric vehicle permanent magnet DC motor, belongs to the motor manufacturing technology field.
Background technology
Motor is the critical component of electric automobile.Because storage battery provides DC power supply, so direct current machine is used as the drive motors of electric automobile very early.Common direct current machine, its stator is by field core (magnetic pole), compositions such as magnetic field winding (coil) and motor housing, with the magnetic field winding technique on saddle-shaped field core, the energising back forms magnetic field (the N utmost point or the S utmost point), and needs continuous energize to flow stabilizing magnetic field that rotor is run well to keep electric current.Therefore exist complex structure, volume is big, quality heavily waits defective, and certain excitation loss is arranged.
Summary of the invention
The purpose of this utility model provides a kind of reasonable in design, has simple in structurely, and volume is little, light weight, efficient height, the used for electric vehicle permanent magnet DC motor of characteristics such as control performance is good, and is reliable.
The utility model is the used for electric vehicle permanent magnet DC motor, comprise casing, place the front end housing and the rear end cap at casing two ends, place the bearing in front end housing and the rear end cap, place the rotating shaft between front end housing bearing and the rear end cap bearing, it is characterized in that described rotating shaft is provided with rotor, the inboard of described casing is provided with and the corresponding permanent magnetism magnetic pole of rotor, described front end housing inboard also is provided with the brush carrier of charged brush, also is provided with commutator between described front end housing and the rotor.
Also can be provided with the fan that links to each other with rotating shaft in the described casing, be used for when drive motors turns round, cooling off.
But the surface of described permanent magnetism magnetic pole is plated coating also.The thickness of described coating can be 10～40 μ m.
The material of the described permanent magnet utmost point can be Nd-Fe-Bo permanent magnet material.
The utility model compared with prior art has following outstanding advantage and good effect:
1, after direct current machine adopts the permanent magnetism magnetic pole excitation, good governor control characteristics of electric excitation dc motor and mechanical property had both been kept, have simple in structure, characteristics such as volume is little, light weight, efficient height because of having saved excitation winding and excitation loss again, and can reach the unapproachable high-performance of electro-magnetic motor, can satisfy the instructions for use of electric automobile.
2, with burning the permanent magnetism magnetic pole of clean Nd-Fe-Bo permanent magnet material as motor.Because of the magnetic property of Nd-Fe-Bo permanent magnet material is better than rare-earth cobalt permanent magnet, because the content of neodymium in rare earth is tens times of samarium, aboundresources, the low price of iron, boron, do not contain the strategic materials cobalt again, so its price has better economic than rare-earth cobalt permanent magnet considerably cheaper.
3, according to the environment for use of magnet, select rational protective finish, to overcome Nd-Fe-Bo permanent magnet material, guarantee its good anti-solvent, shock resistance and salt fog resistance performance owing to contain the shortcoming of a large amount of iron and the easy corrosion of neodymium.
Description of drawings
Accompanying drawing is an overall structure half sectional view of the present utility model.
Among the figure: 1 is front end housing, and 2 is brush carrier, and 3 is brush, and 4 is commutator, and 5 is permanent magnetism magnetic pole, and 6 is coating, and 7 is casing, and 8 is rotor, and 9 is fan, and 10 is rear end cap, and 11 is bearing, and 12 are rotating shaft.
Embodiment
The utility model is mainly by casing 7, place the front end housing 1 and the rear end cap 10 at casing 7 two ends, place the bearing 11 in front end housing 1 and the rear end cap 10, place the rotating shaft 12 between front end housing bearing and the rear end cap bearing, place the rotor 8 in the rotating shaft 12, place the casing 7 inboard and zinc-plated permanent magnetism magnetic poles 5 that cover coating 6 of rotor 8 opposite position bands, place the brush carrier 2 of front end housing 1 inboard charged brush 3, place the commutator 4 between front end housing 1 and the rotor 8, place fan 9 formations such as grade that link to each other with rotating shaft 12 in the casing 7.
Claims (5)
1, a kind of used for electric vehicle permanent magnet DC motor, comprise casing (7), place the front end housing (1) and the rear end cap (10) at casing (7) two ends, place the bearing (11) in front end housing (1) and the rear end cap (10), place the rotating shaft (12) between front end housing bearing and the rear end cap bearing, it is characterized in that described rotating shaft (12) is provided with rotor (8), the inboard of described casing (7) is provided with and the corresponding permanent magnetism magnetic pole of rotor (8) (5), described front end housing (1) inboard also is provided with the brush carrier (2) of charged brush (3), also is provided with commutator (4) between described front end housing (1) and the rotor (8).
2, by the described used for electric vehicle permanent magnet DC motor of claim 1, it is characterized in that also being provided with in the described casing (7) fan (9) that links to each other with rotating shaft (12).
3, by the described used for electric vehicle permanent magnet DC motor of claim 1, it is characterized in that plated coating (6) is gone back on the surface of described permanent magnetism magnetic pole (5).
4, by the described used for electric vehicle permanent magnet DC motor of claim 3, the thickness that it is characterized in that described coating (6) is 10～40 μ m.
5, by claim 1 or 3 described used for electric vehicle permanent magnet DC motors, the material that it is characterized in that the described permanent magnet utmost point (5) is a Nd-Fe-Bo permanent magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210665 CN2650383Y (en) | 2003-09-12 | 2003-09-12 | Permanent-magnet direct-current dynamo for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210665 CN2650383Y (en) | 2003-09-12 | 2003-09-12 | Permanent-magnet direct-current dynamo for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2650383Y true CN2650383Y (en) | 2004-10-20 |
Family
ID=34325506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03210665 Expired - Fee Related CN2650383Y (en) | 2003-09-12 | 2003-09-12 | Permanent-magnet direct-current dynamo for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2650383Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868902B (en) * | 2007-11-22 | 2013-10-16 | 罗伯特·博世有限公司 | DC machine |
| CN105262307A (en) * | 2015-11-12 | 2016-01-20 | 韩群山 | Electric-vehicle permanent magnet brush motor |
-
2003
- 2003-09-12 CN CN 03210665 patent/CN2650383Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868902B (en) * | 2007-11-22 | 2013-10-16 | 罗伯特·博世有限公司 | DC machine |
| CN105262307A (en) * | 2015-11-12 | 2016-01-20 | 韩群山 | Electric-vehicle permanent magnet brush motor |
| CN105262307B (en) * | 2015-11-12 | 2017-12-08 | 韩群山 | Electric car permanent magnet brush motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |