CN201789396U - Asynchronous starting permanent synchronous motor - Google Patents
Asynchronous starting permanent synchronous motor Download PDFInfo
- Publication number
- CN201789396U CN201789396U CN2010202740205U CN201020274020U CN201789396U CN 201789396 U CN201789396 U CN 201789396U CN 2010202740205 U CN2010202740205 U CN 2010202740205U CN 201020274020 U CN201020274020 U CN 201020274020U CN 201789396 U CN201789396 U CN 201789396U
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- Prior art keywords
- permanent magnet
- rotor
- magnetic stripe
- synchronous motor
- asynchronous starting
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Abstract
The utility model relates to an asynchronous starting permanent synchronous motor, comprising a rotor; at least one pair of tile-shaped permanent magnets and demagnetization strips with the same pair number, wherein the tile-shaped permanent magnets are arranged between a shaft penetrating hole of the rotor and a rotating shaft and are peripherally and uniformly distributed in a close manner; the permanent magnets and the demagnetization strips are distributed; the outer side of the rotor is distributed with rotor guide strips and magnetic-permeable teeth at intervals; the outer surface of the demagnetization strip protrudes out of the outer surface of the permanent magnet and is embedded into the rotor punching piece; and the width of the protruding part is larger than that of the part of the demagnetization strip clamped in the middle of the permanent magnet. By increasing the height of the demagnetization strip properly, the asynchronous starting permanent synchronous motor can reduce flux leakage, increase magnetic flux entering air gaps by the rotor, reduce saturation, and obviously improve the permanent magnetic path of the motor, thus providing load-carrying capability when the motor runs, reducing current of a guide strip, having less consumption and improving the efficiency.
Description
Technical field
The utility model relates to the permanent magnet synchronous motor of alternating current motor technical field, particularly a kind of asynchronous starting.
Background technology
The rotor of asynchronous starting permanent magnet synchronous motor commonly used is made up of the asynchronous starting rotor portion that is positioned at the outer ring and the permanent magnetism starting rotor portion and the machine shaft that are positioned at inner ring now.The asynchronous starting rotor portion is that rotor core that become one structure constitutes by the multi-disc silicon steel sheet is stacked, be provided with the permanent magnetism starting rotor portion that permanent magnet constitutes between rotor core and machine shaft, the outer ring of rotor core is interval with rotor bar and magnetic teeth.Application number is that the permanent magnet that 2007101132987 Chinese patent file has proposed a kind of employing watt shape shape is held in the p-m rotor that forms in the rotating shaft, it between the permanent magnet non-magnetizer, non-magnetizer also is a watt shape shape, identical with the permanent magnet height, as shown in Figure 1, permanent magnet machine rotor comprises: at least one pair of permanent magnet 4 that is evenly distributed on watt shape shape around the rotating shaft 5 and corresponding logarithm every magnetic stripe 6, permanent magnet 4 and distribute alternately every magnetic stripe 6; The permanent magnet machine rotor outside is intervally distributed with rotor bar 1 and magnetic teeth 2, and sliver 1 is a cast aluminium, and magnetic teeth 2 is a silicon steel sheet.The rotor magnetic line of such scheme is more at sliver 1 and the leakage field between magnetic stripe 6, and is less with the main flux of stator interlinkage, and has saturated conditions; And we know, main flux with stator, rotor winding while interlinkage in the alternating current machine is the media that motor carries out power conversion, so it is undesirable to adopt the shortcoming of such scheme to be that motor-field distributes, can cause load capacity behind the electric motor starting to reduce and increase, the loss increase of sliver electric current.
The utility model content
The purpose of this utility model provides a kind of asynchronous starting permanent magnet synchronous motor, in order to solve in the prior art motor-field unfavorable problem that distributes.
For achieving the above object, scheme of the present utility model is: a kind of asynchronous starting permanent magnet synchronous motor, rotor wear between axis hole and the rotating shaft circumferentially evenly at least one pair of permanent magnet of tight distribution watt shape shape and identical logarithm every magnetic stripe, permanent magnet and distribute alternately every magnetic stripe; The rotor outside is intervally distributed with rotor bar and magnetic teeth, it is characterized in that, described every magnetic stripe outer surface protrusion permanent magnet outer surface, in the embedding rotor punching, the projection width is greater than be clipped in partial width in the permanent magnet every magnetic stripe.
By increasing height every magnetic stripe, make every magnetic stripe and embed rotor punching, and increase projection width, can reduce leakage field effectively, increase the magnetic flux that enters air gap by rotor, reduce saturation, obviously improve the permanent magnetic circuit of motor, thereby when motor moves, provide the motor load capacity, reduce the sliver electric current, less loss, raise the efficiency.
Further, can protrude permanent magnet every magnetic stripe and partly be arranged to the U-shaped cup-shaped described, the cup end, be clipped in every magnetic stripe with described that the part one is connected in the permanent magnet.Also can protrude permanent magnet every magnetic stripe and partly be pentagon described, pentagon one acute angle be clipped in every magnetic stripe with described that the part one is connected in the permanent magnet, and pentagon axially is symmetrical in and describedly is clipped in part in the permanent magnet every magnetic stripe.And is arc with described sliver towards rotating shaft one end, and the sliver radical length is greater than half of rotor punching radial width.
Description of drawings
Fig. 1 is the rotor structure for permanent magnet motor figure of prior art;
Fig. 2 is the utility model embodiment 1 motor rotor construction figure;
Fig. 3 is embodiment 2 motor rotor construction figure.
Embodiment
As a kind of asynchronous starting permanent magnet synchronous motor of the utility model embodiment, the wearing between axis hole and the rotating shaft 5 of rotor, evenly, closely, the two pairs of permanent magnets 4 of watt shape shape that distributes alternately and two pairs are every magnetic stripe 6; The rotor outside is intervally distributed with rotor bar 1 and magnetic teeth 2, as shown in Figure 2, protrudes permanent magnet 4 outer surfaces every magnetic stripe 6 outer surfaces, embeds in the silicon steel sheet of rotor punching, wholely is the goblet shape every magnetic stripe 6, protrudes permanent magnet 4 parts and takes the shape of the letter U.Sliver 1 is an arc towards rotating shaft one end, and sliver 1 radical length is about 60% of rotor punching radial width greater than half of rotor punching radial width.
After adopting said structure, the leakage field that passes between magnetic stripe 6 and sliver 1 obviously reduces, and the magnetic flux that passes sliver 1 and sliver 1 external rotor winding increases, thereby reduced magnetic pole join the place leakage field, increase the main flux that exchange plays a major role to motor power, obviously improved the permanent magnetic circuit of motor.Because leakage field reduces, increased the synchronous torque after motor enters stable state, thereby can improve the overload capacity of motor; Secondly, sliver 1 electric current also can obviously descend, thereby reduces the aluminium consumption, reduces that the motor feels hot, raises the efficiency.Carry out full-load test, when 380V line voltage, load is the 70.028Nm(full load starting) time, total aluminium decreases and is 217W, copper loss is 446.8W, and iron loss is 316W, and efficient reaches 0.92, and power factor reaches 0.937, and than existing asynchronous starting permanent magnet synchronous motor, performance has very big lifting.
Claims (5)
1. an asynchronous starting permanent magnet synchronous motor comprises rotor, rotor wear between axis hole and the rotating shaft circumferentially evenly at least one pair of permanent magnet of tight distribution watt shape shape and identical logarithm every magnetic stripe, permanent magnet and distribute alternately every magnetic stripe; The rotor outside is intervally distributed with rotor bar and magnetic teeth, it is characterized in that, described every magnetic stripe outer surface protrusion permanent magnet outer surface, in the embedding rotor punching, the projection width is greater than be clipped in partial width in the permanent magnet every magnetic stripe.
2. a kind of asynchronous starting permanent magnet synchronous motor according to claim 1 is characterized in that, describedly protrudes the permanent magnet cup-shaped that partly takes the shape of the letter U every magnetic stripe, and the cup end is clipped in every magnetic stripe with described that the part one is connected in the permanent magnet.
3. a kind of asynchronous starting permanent magnet synchronous motor according to claim 1, it is characterized in that, describedly protrude permanent magnet every magnetic stripe and partly be pentagon, pentagon one acute angle is clipped in every magnetic stripe with described that the part one is connected in the permanent magnet, and pentagon axially is symmetrical in and describedly is clipped in part in the permanent magnet every magnetic stripe.
4. according to each described a kind of asynchronous starting permanent magnet synchronous motor among the claim 1-3, it is characterized in that described sliver is an arc towards rotating shaft one end.
5. according to each described a kind of asynchronous starting permanent magnet synchronous motor among the claim 1-3, it is characterized in that described sliver radical length is greater than half of rotor punching radial width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202740205U CN201789396U (en) | 2010-07-28 | 2010-07-28 | Asynchronous starting permanent synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202740205U CN201789396U (en) | 2010-07-28 | 2010-07-28 | Asynchronous starting permanent synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789396U true CN201789396U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202740205U Expired - Fee Related CN201789396U (en) | 2010-07-28 | 2010-07-28 | Asynchronous starting permanent synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789396U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593986A (en) * | 2012-03-15 | 2012-07-18 | 岳群生 | Rotor of line-start permanent magnetic synchronous motor |
| CN103326485A (en) * | 2013-06-18 | 2013-09-25 | 河北省机械科学研究设计院 | Rotor structure of submersible motor |
| CN103477541A (en) * | 2011-04-08 | 2013-12-25 | 格伦德福斯管理联合股份公司 | Rotor |
| CN103580429A (en) * | 2013-11-21 | 2014-02-12 | 大连东利伟业环保节能科技有限公司 | Asynchronous starting method of half magnetic sheet type permanent-magnet synchronous motor |
| CN105656271A (en) * | 2016-02-23 | 2016-06-08 | 大连碧蓝节能环保科技有限公司 | Transition asynchronous start permanent magnet synchronous motor and pole changing and speed changing method |
-
2010
- 2010-07-28 CN CN2010202740205U patent/CN201789396U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103477541A (en) * | 2011-04-08 | 2013-12-25 | 格伦德福斯管理联合股份公司 | Rotor |
| CN103477541B (en) * | 2011-04-08 | 2016-06-01 | 格伦德福斯管理联合股份公司 | Rotor |
| CN102593986A (en) * | 2012-03-15 | 2012-07-18 | 岳群生 | Rotor of line-start permanent magnetic synchronous motor |
| CN103326485A (en) * | 2013-06-18 | 2013-09-25 | 河北省机械科学研究设计院 | Rotor structure of submersible motor |
| CN103580429A (en) * | 2013-11-21 | 2014-02-12 | 大连东利伟业环保节能科技有限公司 | Asynchronous starting method of half magnetic sheet type permanent-magnet synchronous motor |
| CN103580429B (en) * | 2013-11-21 | 2015-08-12 | 大连碧蓝节能环保科技有限公司 | Half magnetic sheet permanent magnet synchronous motor asynchronous starting method |
| CN105656271A (en) * | 2016-02-23 | 2016-06-08 | 大连碧蓝节能环保科技有限公司 | Transition asynchronous start permanent magnet synchronous motor and pole changing and speed changing method |
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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: 20110406 Termination date: 20130728 |