CN203406760U - Rare-earth permanent-magnet direct-current motor - Google Patents
Rare-earth permanent-magnet direct-current motor Download PDFInfo
- Publication number
- CN203406760U CN203406760U CN201320511911.1U CN201320511911U CN203406760U CN 203406760 U CN203406760 U CN 203406760U CN 201320511911 U CN201320511911 U CN 201320511911U CN 203406760 U CN203406760 U CN 203406760U
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- Prior art keywords
- rotating shaft
- brush
- motor
- electric brush
- earth permanent
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Abstract
The utility model relates to a motor used in small mowers as a power driver and particularly relates to a rare-earth permanent-magnet direct-current motor. The motor comprises a case, a front end cover, a rear end cover and a rotating shaft, wherein a magnetic tile is fixed on the case and is designed into an eccentric structure, the rotating shaft is fixedly installed together with the front end cover and the rear end cover respectively, a rotor core is fixed on the rotating shaft, a rotor winding is wound on the rotor core, a commutator is mounted in the rear part of the rotating shaft, an electric brush frame is also mounted in the rear part of the rotating shaft, an electric brush is placed in the electric brush frame, the rear end of the electric brush is connected with an electric brush frame spring, and the two ends of the electric brush frame extend towards two sides and are basically sealed together with the inner wall of the case. The rare-earth permanent-magnet direct-current motor is scientific in design, and the efficiency and the service life of the motor are improved by optimizing the magnetic field distribution of the motor and improving the structure and the pressure of the electric brush.
Description
Technical field
The utility model relates to a kind of motor, is applied in small-sized hay mover and does power drive use, specifically rare earth permanent magnetic dc motor.
Background technology
Existing permanent magnet direct current motor exists efficiency low, and volume is large, the shortcoming that useful life is short.
Utility model content
For the problems referred to above, the utility model provides a kind of rare earth permanent magnetic dc motor, to improving on existing permanent magnet DC motor, and by the optimization to the Distribution of Magnetic Field of motor, the improvement of brush structure and pressure, efficiency and the useful life of improving motor.
The utility model is achieved through the following technical solutions: a kind of rare earth permanent magnetic dc motor, comprise casing, front end housing, rear end cap, rotating shaft, fixing magnetic shoe on described casing, described rotating shaft and front end housing fixed installation, described rotating shaft and rear end cap fixed installation, fixed rotor iron core in described rotating shaft, on described rotor core, be wound around rotor winding, commutator is installed at the rear portion of rotating shaft, brush carrier is also installed at the rear portion of described rotating shaft, in described brush carrier, pack brush into, described brush rear end connects brush spring, extend to both sides at the two ends of described brush carrier, and with the basic involution of casing inner wall.
As preferably, described brush is also equipped with brush carrier, for stationary positioned.
As preferably, described magnetic shoe adopts eccentric structure design.
The utility model has taked above-mentioned corrective measure to carry out, its beneficial effect is remarkable: the stator magnetic shoe in this rare earth permanent magnetic dc motor adopts eccentric design, make the field waveform of motor approach sinusoidal wave, brush structure adopts extension spring form, make the pressure of brush even, stablize, reduce the mechanical wear of brush and commutator, increase the useful life of brush.To using on the mini-plant of battery powered drive, can make the flying power of equipment be significantly improved this kind of high efficiency, long-life rareearth permanent-magnet DC motor applications, improve 60-80% than common permanent magnet direct current motor useful life.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of the utility model embodiment 1;
Fig. 2 is the transverse sectional view of the utility model embodiment 1.
In figure, 1 is rotating shaft, the 2nd, and front end housing, the 3rd, casing, the 4th, rotor core, the 5th, rotor winding, the 6th, brush carrier, the 7th, brush, the 8th, commutator, the 9th, rear end cap, the 10th, brush carrier, the 11st, brush spring, the 12nd, magnetic shoe.
Embodiment
Contrast accompanying drawing is below further described the utility model in conjunction with the embodiments:
With reference to Fig. 1, shown in Fig. 2, a kind of rare earth permanent magnetic dc motor, comprise casing 3, front end housing 2, rear end cap 9, rotating shaft 1, fixing magnetic shoe 12 on described casing 3, magnetic shoe 12 adopts eccentric structure design, rotating shaft 1 and front end housing 2 fixed installations, rotating shaft 1 and rear end cap 9 fixed installations, fixed rotor iron core 4 in rotating shaft 1, on rotor core 4, be wound around rotor winding 5, commutator 8 and brush carrier 6 are installed in the rear portion of rotating shaft 1, extend to both sides at the two ends of brush carrier 6, and with the basic involution of casing 3 inwall, in described brush carrier 6, pack brush 7 into, brush 7 rear ends connect brush spring 11, brush spring 11 provides the contact of brush 7 with commutator 8, brush 7 is also equipped with brush carrier 10, be used for keeping brush 7 positions.
The rated power of this motor is 13.5 ~ 16.5W, and the rated voltage of work is DC24V, and rated current is less than 1.15A, and its rated speed can reach per minute 3300 ~ 3900 and turn, and the class of insulation is good.
What more than enumerate is only specific embodiment of the utility model; obviously; the utility model is not limited to above embodiment, and all distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model, all should belong to protection range of the present utility model.
Claims (3)
1. a rare earth permanent magnetic dc motor, comprise casing, front end housing, rear end cap, rotating shaft, fixing magnetic shoe on described casing, described rotating shaft and front end housing fixed installation, described rotating shaft and rear end cap fixed installation, fixed rotor iron core in described rotating shaft, on described rotor core, be wound around rotor winding, commutator is installed at the rear portion of rotating shaft, brush carrier is also installed at the rear portion of described rotating shaft, in described brush carrier, packs brush into, it is characterized in that: described brush rear end connects brush spring, extend to both sides at the two ends of described brush carrier, and with the basic involution of casing inner wall.
2. rare earth permanent magnetic dc motor according to claim 1, is characterized in that: described brush is also equipped with brush carrier, for stationary positioned.
3. rare earth permanent magnetic dc motor according to claim 1, is characterized in that: described magnetic shoe adopts eccentric structure design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511911.1U CN203406760U (en) | 2013-08-21 | 2013-08-21 | Rare-earth permanent-magnet direct-current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511911.1U CN203406760U (en) | 2013-08-21 | 2013-08-21 | Rare-earth permanent-magnet direct-current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406760U true CN203406760U (en) | 2014-01-22 |
Family
ID=49942680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320511911.1U Expired - Fee Related CN203406760U (en) | 2013-08-21 | 2013-08-21 | Rare-earth permanent-magnet direct-current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203406760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061584A (en) * | 2019-05-21 | 2019-07-26 | 卧龙电气驱动集团股份有限公司 | A kind of drum type brake DC vibration motor |
-
2013
- 2013-08-21 CN CN201320511911.1U patent/CN203406760U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061584A (en) * | 2019-05-21 | 2019-07-26 | 卧龙电气驱动集团股份有限公司 | A kind of drum type brake DC vibration motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20210821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |