CN201797424U - Medium-low speed high-power density permanent magnet motor - Google Patents
Medium-low speed high-power density permanent magnet motor Download PDFInfo
- Publication number
- CN201797424U CN201797424U CN2010202859318U CN201020285931U CN201797424U CN 201797424 U CN201797424 U CN 201797424U CN 2010202859318 U CN2010202859318 U CN 2010202859318U CN 201020285931 U CN201020285931 U CN 201020285931U CN 201797424 U CN201797424 U CN 201797424U
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- permanent magnet
- low speed
- stator
- power density
- speed high
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model aims to provide a medium-low speed high-power density permanent magnet motor. The medium-low speed high-power density permanent magnet motor comprises a stator, a rotor and an end cover, and is characterized in that: 72 winding slots are reserved on the stator along the circumference uniformly; 64 starting cage conducting bar slots are reserved on the rotor along the circumference uniformly; 12 permanent magnet slots are reserved inside the rotor along the radial direction uniformly; and neodymium iron boron permanent magnets which are positioned radially and axially are arranged in the permanent magnet slots. The medium-low speed high-power density permanent magnet motor provided by the utility model has the efficiency of up to 94 percent, a power factor of up to or close to 1, realizes low speed, high efficiency, reliability and economic operation instead of an original general asynchronous motor, is particularly suitable to be used in 'light load drive' occasions such as an oil extractor of an oil field and a motor of a floatation machine of a metal smelting plant, and plays a role in saving energy and reducing consumption.
Description
Technical field
The utility model patent relates to permanent magnet motor, and the particularly various middle low speed high power densities of the big torque application apparatus of slow-speed of revolution occasion that need are applicable to.
Background technology
Rotating speed 500r/min, there is irrational one side in the former rare-earth permanent magnet motor of output power range 18.5kW ~ 37kW on structural design; Its raw material and manufacturing process difficulty are big; Start bad simultaneously, electric efficiency is lower.
Summary of the invention
The purpose of this utility model provides a kind of middle low speed high-power density permanent magnetic motor, and this permanent magnet motor substitutes original normal asynchronous, realizes low-speed high-efficiency, economical operation.
The technical scheme that the utility model is taked to deal with problems is:
Low speed high-power density permanent magnetic motor comprises stator, rotor and end cap in the utility model, it is characterized in that: described stator is uniformly distributed with 72 slot for windings along the circumference; Described rotor is uniformly distributed with 64 starting cage sliver grooves along the circumference, and side is 12 radially uniform permanent magnet trough within it, lays in the permanent magnet trough radially to reach axially all Nd-Fe-B permanent magnets of location.
Stator outer diameter is 400mm, and the inside and outside ratio of stator outer diameter/stator is in 0. 8 ~ 0.87 scope; The stator grooved is shallow pears type groove, and groove depth/average groove width is 2.8 ~ 2.9 mm; Embed stator winding in 72 slot for windings.
Narrow in magnetic bridge near leaving between any two the adjacent permanent magnet grooves of interior nose circle, rotor is uniformly distributed with 64 starting cage sliver grooves along the circumference, and grooved be tiltedly to take on flat-bottom slot, and side is that groove width is 12 radially uniform permanent magnet trough of 10 ~ 11mm within it;
Deciding the turn trough cooperation is 72/64 or 72/58.
The middle low speed high-power density permanent magnetic motor that the utility model provides, efficient reaches 94%, and power factor reaches or near 1, substitutes original normal asynchronous, realizes low-speed high-efficiency, reliable, economical operation.Especially be fit to be applied to the occasion of " low load with strong power ", the flotation device motor as oil-field oil pumper, metallurgical works plays energy-saving and cost-reducing effect.
Description of drawings:
Fig. 1 is the utility model rotor cross sectional view, wherein:
1---rotor starting cage groove
2---permanent magnet trough
3---every magnetic bridge
4---the air magnet isolation tank
5---axis hole.
Embodiment:
In conjunction with Fig. 1, the utility model is adopted middle low speed high-power density permanent magnetic motor, comprises stator, rotor and end cap, and it is characterized in that: described stator is uniformly distributed with 72 slot for windings along the circumference; Described rotor is uniformly distributed with 64 starting cage sliver grooves along the circumference, and side is 12 radially uniform permanent magnet trough within it, lays in the permanent magnet trough radially to reach axially all Nd-Fe-B permanent magnets of location.
Stator outer diameter is 400mm, and the inside and outside ratio of stator outer diameter/stator is in 0. 8 ~ 0.87 scope; The stator grooved is shallow pears type groove, and groove depth/average groove width is 2.8 ~ 2.9 mm; Embed stator winding in 72 slot for windings.
Narrow in magnetic bridge near leaving between any two the adjacent permanent magnet grooves of interior nose circle, rotor is uniformly distributed with 64 starting cage sliver grooves along the circumference, and grooved be tiltedly to take on flat-bottom slot, and side is that groove width is 12 radially uniform permanent magnet trough of 10 ~ 11mm within it;
Deciding the turn trough cooperation is 72/64 or 72/58.
The middle low speed high-power density permanent magnetic motor that the utility model provides, efficient reaches 94%, and power factor reaches or near 1, substitutes original normal asynchronous, realizes low-speed high-efficiency, reliable, economical operation.Especially be fit to be applied to the occasion of " low load with strong power ", the flotation device motor as oil-field oil pumper, metallurgical works plays energy-saving and cost-reducing effect.
Claims (3)
1. low speed high-power density permanent magnetic motor in a kind comprises stator, rotor and end cap, and it is characterized in that: described stator is uniformly distributed with 72 slot for windings along the circumference; Described rotor is uniformly distributed with 64 starting cage sliver grooves along the circumference, and side is 12 radially uniform permanent magnet trough within it, lays in the permanent magnet trough radially to reach axially all Nd-Fe-B permanent magnets of location.
2. low speed high-power density permanent magnetic motor in according to claim 1, it is characterized in that: stator outer diameter is 400mm, the inside and outside ratio of stator outer diameter/stator is in 0. 8 ~ 0.87 scope; The stator grooved is shallow pears type groove, and groove depth/average groove width is 2.8 ~ 2.9 mm; Embed stator winding in 72 slot for windings.
3. low speed high-power density permanent magnetic motor in according to claim 1 and 2; It is characterized in that: narrow in magnetic bridge near leaving between any two the adjacent permanent magnet grooves of interior nose circle, rotor is uniformly distributed with 64 starting cage sliver grooves along the circumference, grooved is tiltedly to take on flat-bottom slot, and side is that groove width is 12 radially uniform permanent magnet trough of 10 ~ 11mm within it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202859318U CN201797424U (en) | 2010-08-10 | 2010-08-10 | Medium-low speed high-power density permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202859318U CN201797424U (en) | 2010-08-10 | 2010-08-10 | Medium-low speed high-power density permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201797424U true CN201797424U (en) | 2011-04-13 |
Family
ID=43852321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202859318U Expired - Fee Related CN201797424U (en) | 2010-08-10 | 2010-08-10 | Medium-low speed high-power density permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201797424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166344A (en) * | 2011-12-09 | 2013-06-19 | 安徽明腾永磁机电设备有限公司 | Rotor punching sheet for permanent magnet motor and rotor |
| CN105119311A (en) * | 2015-07-30 | 2015-12-02 | 中国石油大学(北京) | Control system of oil pumping unit and control method |
-
2010
- 2010-08-10 CN CN2010202859318U patent/CN201797424U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166344A (en) * | 2011-12-09 | 2013-06-19 | 安徽明腾永磁机电设备有限公司 | Rotor punching sheet for permanent magnet motor and rotor |
| CN105119311A (en) * | 2015-07-30 | 2015-12-02 | 中国石油大学(北京) | Control system of oil pumping unit and control method |
| CN105119311B (en) * | 2015-07-30 | 2019-02-05 | 中国石油大学(北京) | The control system and its control method of pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20120810 |