CN201178365Y - Permanent magnet synchronous electric motor of asymmetric magnetic circuit - Google Patents
Permanent magnet synchronous electric motor of asymmetric magnetic circuit Download PDFInfo
- Publication number
- CN201178365Y CN201178365Y CNU200820083260XU CN200820083260U CN201178365Y CN 201178365 Y CN201178365 Y CN 201178365Y CN U200820083260X U CNU200820083260X U CN U200820083260XU CN 200820083260 U CN200820083260 U CN 200820083260U CN 201178365 Y CN201178365 Y CN 201178365Y
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- magnet steel
- rotor
- asymmetric magnetic
- synchronous motor
- permagnetic synchronous
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Abstract
The utility model relates to a permanent magnet synchronous motor with an asymmetrical magnetic structure. Tile-shaped magnetic steels are arranged at the outer periphery of a rotor, and the magnetic steels have three specifications with different central angles and weights. The magnetic steels with there specifications form the asymmetrical magnetic structure on the rotor so as to realize the smooth starting of the motor and achieve the effect of reducing torque fluctuation without depending on the assistant control of soft starters of other motors, under the conditions that the magnetic steels and a stator tooth groove need not to be skewed.
Description
Technical field
The utility model relates to a kind of synchronous machine, especially relates to a kind of permagnetic synchronous motor of asymmetric magnetic structure.
Background technology
Existing permagnetic synchronous motor, generally be to adopt rotor, rotor rotate the rotation of drive power transmission shaft in stator structure is set on the drive of motor main shaft, plurality tile type structure magnet steel is set on its rotor excircle, these magnet steel form symmetrical magnetic circuits, its defective is: need magnet steel and stator teeth groove skew, with mild startup that realizes motor and the effect that reduces torque ripple.
Summary of the invention
The utility model mainly is to solve existing in prior technology because of rotor magnetic steel magnetic circuit symmetry makes magnet steel and stator teeth groove need the technical problem of skew etc., and a kind of permagnetic synchronous motor of asymmetric magnetic structure is provided.The permagnetic synchronous motor of the asymmetric magnetic structure of the utility model, it is provided with a watt type magnet steel on the rotor excircle, for having three kinds of specifications of different central angles and Different Weight, the magnet steel of these three kinds of different sizes constitutes asymmetric magnetic circuit on rotor, make magnet steel and stator teeth groove all not need under the situation of skew, need not to rely on the assist control of other soft starter for motor devices, can realize the mild startup of motor and reach the effect that reduces torque ripple.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the permagnetic synchronous motor of the asymmetric magnetic structure of the utility model, it comprises power transmission shaft, stator, is located at rotor, the electric machine casing of stator internal fixation in power transmission shaft, the circumference of described rotor be provided be watt type, material is the magnet steel of rare earth permanent magnet, the magnet steel that described rotor is provided with on its circumference is three kinds of magnet steel I, magnet steel III with different central angles and Different Weight and magnet steel II etc.Magnet steel I, magnet steel III and magnet steel II are arranged on the same circumference of rotor, to constitute asymmetric magnetic structure; This structure is easy to make, technology is simple.
For obtaining electric motor starting effect preferably, as preferably, the magnet steel I that is provided with on the circumference of described rotor is that one, magnet steel II are that one, magnet steel III are some, and magnet steel I and magnet steel II are located at the both sides at rotor center.
As preferably, described magnet steel I and magnet steel II lateral margin are respectively equipped with the boss that extends internally, and the circumference of rotor is provided with the groove adaptive with boss.The installation of magnet steel and fixing is convenient in the setting of this boss.
As preferably, the two ends excircle of magnet steel I, magnet steel II and magnet steel III is provided with corner cut.
As preferably, described rotor forms for arranging before and after the identical rotor module of external diameters in several is on power transmission shaft.Under the prerequisite that does not change stator, rotor radial size, by the length of increase and decrease rotor module quantity and stator, can realize the different output power of motor, the purpose made from the seriation that reaches motor.
As preferably, the rotor module of described two ends of rotor is made axial limiting by the block of being located at two ends of rotor, and the block sidewall is provided with gimbal.By to the increasing the weight of and go heavily of gimbal, can realize the dynamic balance calibration of power transmission shaft and rotor comparatively easily.
As preferably, described transmission the tip of the axis is provided with feedback transducer.By feedback transducer, realize the magnetic pole location and the position feedback of rotor.
Therefore, the utlity model has characteristic of reasonable structure, especially be that three kinds of magnet steel with different central angles and Different Weight constitute asymmetric magnetic circuit on rotor at the magnet steel that is provided with on the rotor circumference, magnet steel and stator teeth groove all do not need under the situation of skew, can realize the mild startup of motor and reach the effect that reduces torque ripple.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is structural representations of rotor;
Accompanying drawing 3 is structural representations of rotor punching;
Accompanying drawing 4 is structural representations of magnet steel I;
Accompanying drawing 5 is structural representations of magnet steel II;
Accompanying drawing 6 is structural representations of magnet steel III.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the permagnetic synchronous motor of the asymmetric magnetic structure of the utility model, shown in accompanying drawing 1, accompanying drawing 2, it comprises power transmission shaft 1, stator 5, is located at rotor 6, the electric machine casing 3 of stator 5 internal fixation in power transmission shaft 1, the circumference of rotor 6 be provided be watt type, material is the magnet steel of rare earth permanent magnet, the magnet steel that is provided with on rotor 6 circumference is three kinds of magnet steel I61, magnet steel II62 with different central angles and Different Weight and magnet steel III63 etc.The magnet steel I61 that is provided with on the circumference of rotor 6 is that one, magnet steel II62 are that one, magnet steel III63 are some, and magnet steel I61 and magnet steel II62 are located at the both sides at rotor 6 centers.
Shown in accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, magnet steel I61 and magnet steel II62 lateral margin are respectively equipped with boss 611 and the boss 621 that extends internally, and the circumference of rotor 6 is provided with the groove adaptive with boss 611 and boss 621.Be equipped with corner cut on the excircle at the circular arc two ends of magnet steel I61, magnet steel II62 and magnet steel III63.
As shown in Figure 1, week is fit-state or is provided with heat-conducting filler therebetween with electric machine casing 3 inwalls outside the stator 5.Be arranged with cooling jacket 4 on the electric machine casing 3, contact site between the two is fit-state or is provided with heat-conducting filler therebetween; Electric machine casing 3 is provided with cooling water channel.The end of power transmission shaft 1 is provided with feedback transducer 9.
Claims (6)
1, a kind of permagnetic synchronous motor of asymmetric magnetic structure, comprise power transmission shaft (1), stator (5), be located at rotor (6), the electric machine casing (3) of stator (5) internal fixation in power transmission shaft (1), the circumference of described rotor (6) be provided be watt type, material is the magnet steel of rare earth permanent magnet, it is characterized in that: the magnet steel that described rotor (6) is provided with on its circumference is three kinds of magnet steel I (61), magnet steel III (63) with different central angles and Different Weight and magnet steel II (62) etc.
2, the permagnetic synchronous motor of asymmetric magnetic structure according to claim 1, it is characterized in that: the magnet steel I (61) that is provided with on the circumference of described rotor (6) is that one, magnet steel II (62) are that one, magnet steel III (63) are some, and magnet steel I (61) and magnet steel II (62) are located at the both sides at rotor (6) center.
3, the permagnetic synchronous motor of asymmetric magnetic structure according to claim 1, it is characterized in that: the lateral margin of described magnet steel I (61) and magnet steel II (62) is respectively equipped with boss (611) and the boss (621) that extends internally, and the circumference of rotor (6) is provided with and boss (611) and the adaptive groove of boss (621).
4, the permagnetic synchronous motor of asymmetric magnetic structure according to claim 1 is characterized in that: the two ends excircle of magnet steel I (61), magnet steel II (62) and magnet steel III (63) is provided with corner cut.
5, according to the permagnetic synchronous motor of claim 1 or 2 or 3 or 4 described asymmetric magnetic structures, it is characterized in that: described rotor (6) is arranged before and after power transmission shaft (1) is gone up for the identical rotor module (64) of external diameter in several and is formed.
6, according to the permagnetic synchronous motor of claim 1 or 2 or 3 described asymmetric magnetic structures, it is characterized in that: the end of described power transmission shaft (1) is provided with feedback transducer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820083260XU CN201178365Y (en) | 2008-02-19 | 2008-02-19 | Permanent magnet synchronous electric motor of asymmetric magnetic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820083260XU CN201178365Y (en) | 2008-02-19 | 2008-02-19 | Permanent magnet synchronous electric motor of asymmetric magnetic circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201178365Y true CN201178365Y (en) | 2009-01-07 |
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ID=40218387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820083260XU Expired - Fee Related CN201178365Y (en) | 2008-02-19 | 2008-02-19 | Permanent magnet synchronous electric motor of asymmetric magnetic circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201178365Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005838A (en) * | 2010-10-20 | 2011-04-06 | 东元总合科技（杭州）有限公司 | High-power permanent-magnet motor rotor, installation method of rotor and method for magnetizing rotor permanent magnet |
| CN102394542A (en) * | 2010-11-13 | 2012-03-28 | 西安合升动力科技有限公司 | Alternating current permanent magnet synchronous spindle motor for threading machine |
-
2008
- 2008-02-19 CN CNU200820083260XU patent/CN201178365Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005838A (en) * | 2010-10-20 | 2011-04-06 | 东元总合科技（杭州）有限公司 | High-power permanent-magnet motor rotor, installation method of rotor and method for magnetizing rotor permanent magnet |
| CN102005838B (en) * | 2010-10-20 | 2012-11-14 | 东元总合科技（杭州）有限公司 | High-power permanent-magnet motor rotor, installation method of rotor and method for magnetizing rotor permanent magnet |
| CN102394542A (en) * | 2010-11-13 | 2012-03-28 | 西安合升动力科技有限公司 | Alternating current permanent magnet synchronous spindle motor for threading machine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20170219 |