CN103368292A - Novel structure of rotor punching sheet of permanent magnet motor - Google Patents

Novel structure of rotor punching sheet of permanent magnet motor Download PDF

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Publication number
CN103368292A
CN103368292A CN2012100817386A CN201210081738A CN103368292A CN 103368292 A CN103368292 A CN 103368292A CN 2012100817386 A CN2012100817386 A CN 2012100817386A CN 201210081738 A CN201210081738 A CN 201210081738A CN 103368292 A CN103368292 A CN 103368292A
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CN
China
Prior art keywords
rotor punching
magnet
permanent magnet
permanent
motor
Prior art date
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.)
Pending
Application number
CN2012100817386A
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Chinese (zh)
Inventor
尹兴满
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XINGZHI MOTOR CO Ltd
Original Assignee
XINGZHI MOTOR CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by XINGZHI MOTOR CO Ltd filed Critical XINGZHI MOTOR CO Ltd
Priority to CN2012100817386A priority Critical patent/CN103368292A/en
Publication of CN103368292A publication Critical patent/CN103368292A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a novel structure of a rotor punching sheet of a permanent magnet motor, and the structure comprises a rotor punching sheet (1). The outer periphery of the rotor punching sheet (1) is uniformly provided with a squirrel-cage winding groove (2). The center of the rotor punching sheet (1) is provided with an axle hole (7). A plurality of even permanent-magnet grooves (3) are uniformly distributed in a shape of regular polygon on an inner side of the squirrel-cage winding groove (2). By utilizing the above structure, the permanent magnets as many as possible can be placed in the condition of the effective area of the rotor punching sheet, and the strength of an air-gap main magnetic field generated by the permanent magnets is greatly increased, and the size of the motor is reduced, and secondary copper loss is reduced, and efficiency of the motor is raised.

Description

A kind of rotor punching structure of Novel permanent-magnet motor
Technical field
The rotor punching that the present invention relates to magneto is the rotor punching structure of asynchronous starting synchronous operation, belongs to technical field of motors, is particularly useful for punch press, the motor energy-saving rebuilding on the equipment such as press.
Background technology
In recent years, along with the development of electron controls technology, the continuous lifting of the manufacturing process of permanent magnet, magneto has obtained good development.Present punch press, what use on the equipment such as press mainly is threephase asynchronous, because such motor is to produce moment of torsion by the formed magnetic field of the induced current of difference in sliver of rotational frequency between stator and the rotor-exciting magnetic field and stator field, therefore its rotating speed does not reach synchronous speed forever, and because the resistance of rotor bar can produce loss, affected the efficient of motor.Although all synchronous machine efficient is high, can reach synchronous speed, the self-starting difficulty.The motor rotor punching sheet of the asynchronous starting synchronous operation of adopting at present, its structural design is also unreasonable, difficulty in starting, and exist the not high series of problems of leakage field, intensity.
Summary of the invention
The object of the present invention is to provide a kind of rotor punching structure of Novel permanent-magnet motor, be particularly useful for punch press, the motor energy-saving rebuilding on the equipment such as press, adopt the asynchronous starting synchronous operation mode, motor operates in synchronous speed, and is rational in infrastructure, can reduce the secondary copper loss, improve electric efficiency.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of rotor punching structure of Novel permanent-magnet motor, include rotor punching (1), rotor punching (1) excircle is evenly equipped with mouse cage slot for winding (2), there is axis hole (7) at the center of rotor punching, it is characterized in that: become regular polygon evenly to distribute several become the permanent magnet trough (3) of even number in the inboard of mouse cage slot for winding (2).
Described permanent magnet trough (3) is 2n group permanent magnet trough group, and n is positive integer, the permanent magnet magnet steel of homopolarity is being set in each interior permanent magnet trough on the same group, and the permanent magnet magnet steel between group and the group adopts sequentially the S utmost point and the N utmost point to be arranged alternately.
Be provided with several little magnet isolation tanks (4) and large magnet isolation tank (5) between the described permanent magnet trough (3), between the permanent magnet trough of same polarity, be provided with little magnet isolation tank (4), between the permanent magnet trough of opposed polarity, be provided with large magnet isolation tank (5).
Be provided with a not magnetic guiding loop (6) above the described axis hole (7).
The present invention has following positive effect compared with the prior art:
1. under the prerequisite of effective rotor punching area, the permanent magnet of laying as much as possible greatly improves the intensity of the air gap main field that permanent magnet produces, and improves the power density of motor, dwindles the volume of motor.
2. be provided with several little magnet isolation tanks and large magnet isolation tank between the permanent magnet trough, so not only effectively played every the magnetic effect, reduced greatly leakage field, improved the efficient of motor, and can also well improve the intensity of rotor punching, be convenient to the production in enormous quantities manufacturing of motor.
3. rotor punching is gone out first mouse cage slot for winding and permanent magnet trough when making, and goes out little magnet isolation tank and large magnet isolation tank again.After rotor punching laminates into rotor core, can the filling epoxy resin fluid sealant in little magnet isolation tank and large magnet isolation tank etc. filler increase the intensity of rotor, for production in enormous quantities provides condition.Actual production shows: adopts at present the magneto of this rotor structure satisfying under the prerequisite of starting performance, improves punch press, and the motor efficiency 10% of the equipment such as press, and can large batch ofly produce.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among Fig. 1: 1. rotor punching, 2. mouse cage slot for winding (2), 3. permanent magnet trough, 4. little magnet isolation tank, 5. large magnet isolation tank, 6. not magnetic guiding loop, 7. axis hole.
Embodiment
Below in conjunction with accompanying drawing detailed technology content of the present invention is described further.
As shown in Figure 1, a kind of rotor punching structure of Novel permanent-magnet motor, include rotor punching (1), rotor punching (1) excircle is evenly equipped with mouse cage slot for winding (2), there is axis hole (7) at the center of rotor punching, and become regular polygon evenly to distribute several become the permanent magnet trough (3) of even number in the inboard of mouse cage slot for winding (2).Adopt such structure, under the prerequisite of effective rotor punching area, can the permanent magnet of laying as much as possible, greatly improve the intensity of the air gap main field that permanent magnet produces, improve the power density of motor, dwindle the volume of motor.
Be provided with several little magnet isolation tanks (4) and large magnet isolation tank (5) between the described permanent magnet trough (3).Between the permanent magnet trough of same polarity, be provided with little magnet isolation tank (4), between the permanent magnet trough of opposed polarity, be provided with large magnet isolation tank (5).So not only effectively played every the magnetic effect, reduced greatly leakage field, improved the efficient of motor, and can also well improve the intensity of rotor punching, be convenient to the production in enormous quantities manufacturing of motor.
Described axis hole (7) is provided with a not magnetic guiding loop (6) at the center of rotor punching (1) on axis hole (7).Magnetic guiding loop (6) can not selected the non-magnet_conductible materials such as stainless steel material.
Described rotor punching (1) is gone out first mouse cage slot for winding (2) and permanent magnet trough (3) when making, go out little magnet isolation tank (4) and large magnet isolation tank (5) again.Efficient and the quality of raising rotor punching that like this can be very large.
The width of the permanent magnet trough (3) of rotor punching of the present invention (1) is the thickness of the permanent magnet that is bumped into.Punching adopts the mode of polylith splicing to be bumped into permanent magnet after laminating into rotor core, and permanent magnet should be selected high performance permanent magnetic material, as selects NdFeB material.After rotor punching (1) laminates into rotor core, little magnet isolation tank (4) and large magnet isolation tank (5) inner can the filling epoxy resin fluid sealant etc. filler increase the intensity of rotor.
The present invention only is described in detail with regard to a preferred example of the present invention, but can not be interpreted as the restriction to other modes of the present invention.Everyly further improve and similar or identical scheme on basis of the present invention, all being considered as is the protection range of request of the present invention.

Claims (4)

1. the rotor punching structure of a Novel permanent-magnet motor, include rotor punching (1), rotor punching (1) excircle is evenly equipped with mouse cage slot for winding (2), there is axis hole (7) at the center of rotor punching, it is characterized in that: become regular polygon evenly to distribute several become the permanent magnet trough (3) of even number in the inboard of mouse cage slot for winding (2).
2. the rotor punching structure of a kind of Novel permanent-magnet motor as claimed in claim 1, it is characterized in that: described permanent magnet trough (3) is 2n group permanent magnet trough group, n is positive integer, the permanent magnet magnet steel of homopolarity is being set in each permanent magnet trough on the same group, and the permanent magnet magnet steel between group and the group adopts sequentially the S utmost point and the N utmost point to be arranged alternately.
3. the rotor punching structure of a kind of Novel permanent-magnet motor as claimed in claim 1 or 2, it is characterized in that: be provided with several little magnet isolation tanks (4) and large magnet isolation tank (5) between the described permanent magnet trough (3), between the permanent magnet trough of same polarity, be provided with little magnet isolation tank (4), between the permanent magnet trough of opposed polarity, be provided with large magnet isolation tank (5).
4. the rotor punching structure of a kind of Novel permanent-magnet motor as claimed in claim 1 is characterized in that: be provided with a not magnetic guiding loop (6) above the described axis hole (7).
CN2012100817386A 2012-03-26 2012-03-26 Novel structure of rotor punching sheet of permanent magnet motor Pending CN103368292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100817386A CN103368292A (en) 2012-03-26 2012-03-26 Novel structure of rotor punching sheet of permanent magnet motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100817386A CN103368292A (en) 2012-03-26 2012-03-26 Novel structure of rotor punching sheet of permanent magnet motor

Publications (1)

Publication Number Publication Date
CN103368292A true CN103368292A (en) 2013-10-23

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CN2012100817386A Pending CN103368292A (en) 2012-03-26 2012-03-26 Novel structure of rotor punching sheet of permanent magnet motor

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103956874A (en) * 2014-04-25 2014-07-30 联合汽车电子有限公司 Permanent magnet synchronous motor and rotor thereof
CN106787571A (en) * 2016-12-21 2017-05-31 华中科技大学 One kind becomes magnetic bridge asynchronous starting permasyn morot

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58136258A (en) * 1982-02-08 1983-08-13 Hitachi Ltd Permanent magnet rotor
CN2862483Y (en) * 2005-10-31 2007-01-24 上海日立电器有限公司 Rotor structure for asynchrony-started permanent magnetic synchrony motor
CN101056015A (en) * 2006-04-14 2007-10-17 艾默生电气公司 Interior magnet machine with non-perpendicular slots
CN101110543A (en) * 2006-07-17 2008-01-23 上海日立电器有限公司 Compressor and its control method
CN201118406Y (en) * 2007-11-08 2008-09-17 岳群生 An asynchronous start permanent magnetic synchronous electromotor
CN101399474A (en) * 2007-09-29 2009-04-01 崔炳如 Rotor for permanent magnet synchronous motor
CN201252459Y (en) * 2008-07-23 2009-06-03 广东美芝制冷设备有限公司 Asynchronous starting permanent magnet synchronous motor
CN201438651U (en) * 2009-07-17 2010-04-14 中国矿业大学 Rotor structure of permanent magnet synchronous motor
CN202475064U (en) * 2012-03-26 2012-10-03 信质电机股份有限公司 Rotor sheet structure of novel permanent magnet motor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58136258A (en) * 1982-02-08 1983-08-13 Hitachi Ltd Permanent magnet rotor
CN2862483Y (en) * 2005-10-31 2007-01-24 上海日立电器有限公司 Rotor structure for asynchrony-started permanent magnetic synchrony motor
CN101056015A (en) * 2006-04-14 2007-10-17 艾默生电气公司 Interior magnet machine with non-perpendicular slots
CN101110543A (en) * 2006-07-17 2008-01-23 上海日立电器有限公司 Compressor and its control method
CN101399474A (en) * 2007-09-29 2009-04-01 崔炳如 Rotor for permanent magnet synchronous motor
CN201118406Y (en) * 2007-11-08 2008-09-17 岳群生 An asynchronous start permanent magnetic synchronous electromotor
CN201252459Y (en) * 2008-07-23 2009-06-03 广东美芝制冷设备有限公司 Asynchronous starting permanent magnet synchronous motor
CN201438651U (en) * 2009-07-17 2010-04-14 中国矿业大学 Rotor structure of permanent magnet synchronous motor
CN202475064U (en) * 2012-03-26 2012-10-03 信质电机股份有限公司 Rotor sheet structure of novel permanent magnet motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103956874A (en) * 2014-04-25 2014-07-30 联合汽车电子有限公司 Permanent magnet synchronous motor and rotor thereof
CN106787571A (en) * 2016-12-21 2017-05-31 华中科技大学 One kind becomes magnetic bridge asynchronous starting permasyn morot
CN106787571B (en) * 2016-12-21 2018-10-16 华中科技大学 A kind of change magnetic bridge asynchronous starting permasyn morot

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Application publication date: 20131023