CN2519523Y - All shielding tangential type outer rotor brushless dc motor - Google Patents
All shielding tangential type outer rotor brushless dc motor Download PDFInfo
- Publication number
- CN2519523Y CN2519523Y CN 01274696 CN01274696U CN2519523Y CN 2519523 Y CN2519523 Y CN 2519523Y CN 01274696 CN01274696 CN 01274696 CN 01274696 U CN01274696 U CN 01274696U CN 2519523 Y CN2519523 Y CN 2519523Y
- Authority
- CN
- China
- Prior art keywords
- magnet
- motor
- end closure
- permanent
- external rotor
- 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
Links
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a fully shielded tangential typed external rotor brushless direct-current motor which is used for an electric motor car and which consists of an external-rotor and an armature, wherein the armature comprises a shell, a permanent-magnet and an end closure, wherein the permanent-magnet is a bar magnet and a shielding ring is arranged outside the shell. The advantages of the utility model are that: the permanent-magnet uses a bar magnet which has a low production cost and a high producing efficiency; the materials are saved and the material utilization is improved; in the effects of the shielding ring and the end closure, the leakage magnetic field of the outer of the motor is eliminated completely and thus the electric motor car is prevented form attract the slag and dust; the end closure is made of ferro magnetic material, the production cost of which reduces a half compared with the aluminum end closure and the mechanical strength is improved.
Description
Technical field
The utility model relates to a kind of electric vehicle full-shield tangential external rotor brushless DC motor.
Background technology
In existing electric vehicle external rotor brushless DC motor, magnetic pole is made by high property permanent magnetic material, but high property permanent magnetic material price height makes the motor cost higher, so key that reduces cost, be how more effectively to utilize permanent magnetic material, the brushless DC motor of existing electric vehicle, what permanent magnet adopted is a watt shape, the processing cost height, waste of material is big, and production efficiency is low, is unfavorable for producing in enormous quantities.
Summary of the invention
Technical problem to be solved in the utility model provide that a kind of cost is low, production efficiency is high electric vehicle full-shield tangential external rotor brushless DC motor.
The technical scheme that its technical problem that solves the utility model adopts is:
The utility model is made of external rotor and armature, and external rotor is made of casing, permanent magnet and end cap, and permanent magnet is arranged at casing inside, and wherein permanent magnet is a bar-shaped magnet, is provided with magnetic inductive block between adjacent two bar-shaped magnets;
The casing outer setting has shading ring;
End cap is a ferrimagnet.
The beneficial effects of the utility model are:
1. permanent magnet adopts bar-shaped magnet, and processing cost reduces greatly, and production efficiency and stock utilization all improve a lot, and can reduce cost 1/3 to 1/4; 2. owing to bar-shaped magnet shape, size unification, the motor of different numbers of poles can be general.3. by shading ring and end cap external magnetic field is shielded, the outside stray field of motor is almost completely disappeared, prevent that electric vehicle motor from attracting iron filings and dust; 4. because end cap is a ferrimagnet, compare with aluminium end cap, cost reduces half, and mechanical strength also increases.
Description of drawings
Fig. 1 is the utility model internal structure front view;
Fig. 2 is the utility model external structure left view;
1. casing; 2. bar-shaped magnet; 3. armature; 4. magnetic inductive block; 5. shading ring; 6. end cap.
Embodiment
As shown in Figure 1, electric vehicle full-shield tangential external rotor brushless DC motor is made of external rotor and armature 3, external rotor is made of casing 1, permanent magnet and end cap 6, permanent magnet constitutes by bar-shaped magnet 2 and magnetic inductive block 4 are alternate, evenly distributed in casing 1 inside, bar-shaped magnet 2 processing costs are low, and production efficiency and stock utilization all improve a lot, and can reduce cost 1/3 to 1/4; As shown in Figure 2, shading ring 5 is arranged, external magnetic field is shielded, the outside stray field of motor is almost completely disappeared, prevent that electric vehicle motor from attracting iron filings and dust by shading ring 5 and ferromagnetism end cap 6 in the casing outer setting; End cap 6 is a ferrimagnet, compares with aluminium end cap, and cost reduces half, and mechanical strength also increases.
Claims (3)
1. full-shield tangential external rotor brushless DC motor, constitute by external rotor and armature (3), external rotor is made of casing (1), permanent magnet and end cap (6), permanent magnet is arranged at casing inside, it is characterized in that: permanent magnet is bar-shaped magnet (2), is provided with magnetic inductive block (4) between adjacent two bar-shaped magnets.
2. full-shield tangential external rotor brushless DC motor according to claim 1 is characterized in that: casing (1) outer setting has shading ring (5).
3. full-shield tangential external rotor brushless DC motor according to claim 2 is characterized in that: end cap (6) is a ferrimagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274696 CN2519523Y (en) | 2001-12-27 | 2001-12-27 | All shielding tangential type outer rotor brushless dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274696 CN2519523Y (en) | 2001-12-27 | 2001-12-27 | All shielding tangential type outer rotor brushless dc motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2519523Y true CN2519523Y (en) | 2002-10-30 |
Family
ID=33679271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01274696 Expired - Fee Related CN2519523Y (en) | 2001-12-27 | 2001-12-27 | All shielding tangential type outer rotor brushless dc motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2519523Y (en) |
-
2001
- 2001-12-27 CN CN 01274696 patent/CN2519523Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205943636U (en) | High -intensity magnetic field subassembly | |
| CN2519523Y (en) | All shielding tangential type outer rotor brushless dc motor | |
| CN105262254A (en) | Surface-built-in mixed speed-regulating permanent magnet synchronous motor | |
| CN205377497U (en) | Sinusoidal back electromotive force magnetic shoe structure of high polar arc coefficient | |
| CN209709789U (en) | Rotor, motor, compressor and air conditioner, vehicle | |
| CN110445337A (en) | A kind of external rotor electric machine and permanent magnet magnetization method | |
| CN206481197U (en) | Anti- salient pole permanent magnet reluctance motor | |
| CN202435162U (en) | Permanent-magnet motor rotor | |
| CN201805336U (en) | High-efficiency energy-saving motor | |
| CN201450431U (en) | Lamination of stator of hub motor for electric bicycle | |
| CN2511037Y (en) | Direct-driven permanent-magnet brushless DC motor | |
| CN209434989U (en) | A kind of rotor assembly and motor in axial magnetic field | |
| CN201813294U (en) | Rare Earth Permanent Magnet Brushless DC Motor | |
| CN207490624U (en) | A kind of composite magnetic steel piece | |
| CN201994734U (en) | Stator for brushless motors | |
| CN201937426U (en) | Brushless direct current (DC) permanent-magnetic motor | |
| CN206948160U (en) | A kind of low-voltage direct inverter compressor motor | |
| CN219627455U (en) | Split rotor magnetic shoe structure of motor rotor of DC brushless rotor compressor | |
| CN202395534U (en) | Permanent magnet of DC ferrite permanent magnet motor | |
| CN205123535U (en) | Synchronous motor that directly drives of permanent magnetism | |
| CN213937563U (en) | A wrong utmost point rotor structure for exchanging synchronous servo motor of permanent magnetism | |
| CN2169944Y (en) | Rare-earth permanent magnet synchronous motor | |
| CN2274837Y (en) | Structure of rotor of permanent megnet synchronous motor | |
| CN2465386Y (en) | Double-group two-pole dc motor | |
| CN2452196Y (en) | Motor of NdFeB permanent starter with high starting ability |
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 |