CN201813294U - Rare-earth permanent magnet direct current brushless motor - Google Patents
Rare-earth permanent magnet direct current brushless motor Download PDFInfo
- Publication number
- CN201813294U CN201813294U CN2010205537091U CN201020553709U CN201813294U CN 201813294 U CN201813294 U CN 201813294U CN 2010205537091 U CN2010205537091 U CN 2010205537091U CN 201020553709 U CN201020553709 U CN 201020553709U CN 201813294 U CN201813294 U CN 201813294U
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- Prior art keywords
- permanent magnet
- rare
- direct current
- magnetic poles
- earth permanent
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- 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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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a rare-earth permanent magnet direct current brushless motor. The motor is characterized in that: magnetic poles which are attached to the outer surface of an electronic rotor are arranged concentrically with equal radius in a tile shape. Due to the adoption of equal-radius and equal-width tile-shaped magnetic poles in the rare-earth permanent magnet direct current brushless motor, waste of permanent magnet materials can be reduced; simultaneously, the magnetic poles can generate more magnetic flux compared with equal-width fan-shaped magnetic poles, the using amount of magnetic poles can be further reduced and the manufacturing cost of the motor is greatly lowered.
Description
Technical field
The present invention relates to a kind of motor, more particularly, relate to a kind of architecture advances of motor pole.
Background technology
Rareearth permanent-magnet DC brushless electric motor rotor magnetic pole adopts the surface-mount type structure shown in the accompanying drawing 1 usually, pastes the tile shape rare-earth permanent magnet of radial magnetizing at outer surface unshakable in one's determination.Because the rare earth permanent magnet that uses in the motor mostly is slug type NdFeB, and the Sintered NdFeB blank is generally rectangle, the fan-shaped magnetic pole of concentric type as depicted in figs. 1 and 2 must be reserved certain clearance in the course of processing, caused the huge waste of permanent magnetic material.
Summary of the invention
The present invention aims to provide a kind of permanent magnetic material of can saving and uses the rareearth permanent-magnet DC brushless electric machine that reduces manufacturing cost.
In order to achieve the above object, a kind of rareearth permanent-magnet DC brushless electric machine of the present invention, the magnetic pole of the outer Surface Mount of its electronics rotor is with concentric watt of radius setting such as shape mode.
Wide watt of shape magnetic poles of radius such as rareearth permanent-magnet DC brushless electric machine of the present invention employing, can reduce the waste of permanent magnetic material, the fan-shaped magnetic pole of comparable same widths produces more magnetic flux simultaneously, can further reduce the consumption of magnetic pole, reduces the manufacturing cost of motor greatly.
Description of drawings
Fig. 1 is the schematic diagram of prior art surface-mount type rotor structure;
Fig. 2 is the fan-shaped magnetic pole machining principle of a prior art concentric type shown in Figure 1 structural representation;
Fig. 3 is a motor intermediate radius of the present invention watt shape magnetic pole surface-mount type rotor structure schematic diagram;
Fig. 4 is the process principle structural representation that Fig. 3 the present invention waits radius watt shape magnetic pole.
Embodiment
At the waste problem of fan-shaped magnetic pole in the course of processing, the present invention proposes employing and wait radius watt shape magnetic pole, as shown in Figure 3, its course of processing is as shown in Figure 4.Wait radius watt owing to adopted, do not need to reserve any space in the magnetic pole course of processing, simultaneously, wait the inside and outside circle width of radius watt to equate, can simplify the cutting technique of magnetic pole, reduce cutting man-hour.Because wide watt of shape magnetic pole of radiuses such as employing, when the magnetic pole of use and fan-shaped magnetic pole same widths, its equivalent pole embrace is bigger, when producing onesize magnetic flux, can further reduce the consumption of magnetic pole.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (1)
1. a rareearth permanent-magnet DC brushless electric machine is characterized in that, the magnetic pole of the outer Surface Mount of electronics rotor is with concentric watt of radius setting such as shape mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205537091U CN201813294U (en) | 2010-10-09 | 2010-10-09 | Rare-earth permanent magnet direct current brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205537091U CN201813294U (en) | 2010-10-09 | 2010-10-09 | Rare-earth permanent magnet direct current brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201813294U true CN201813294U (en) | 2011-04-27 |
Family
ID=43896231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205537091U Expired - Fee Related CN201813294U (en) | 2010-10-09 | 2010-10-09 | Rare-earth permanent magnet direct current brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201813294U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363837A (en) * | 2012-04-10 | 2013-10-23 | 上海良机冷却设备有限公司 | Device facilitating overhaul and maintenance of transmission component in cooling tower |
| CN108173366A (en) * | 2018-02-10 | 2018-06-15 | 中山市科艺电机有限公司 | A kind of rotor and the sewing machine energy-saving electric machine and sewing machine with the rotor |
-
2010
- 2010-10-09 CN CN2010205537091U patent/CN201813294U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363837A (en) * | 2012-04-10 | 2013-10-23 | 上海良机冷却设备有限公司 | Device facilitating overhaul and maintenance of transmission component in cooling tower |
| CN108173366A (en) * | 2018-02-10 | 2018-06-15 | 中山市科艺电机有限公司 | A kind of rotor and the sewing machine energy-saving electric machine and sewing machine with the rotor |
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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: 20110427 Termination date: 20151009 |
|
| EXPY | Termination of patent right or utility model |