CN203312945U - Permanent magnetic rotor of three-phase asynchronous motor - Google Patents

Permanent magnetic rotor of three-phase asynchronous motor Download PDF

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Publication number
CN203312945U
CN203312945U CN2013204090099U CN201320409009U CN203312945U CN 203312945 U CN203312945 U CN 203312945U CN 2013204090099 U CN2013204090099 U CN 2013204090099U CN 201320409009 U CN201320409009 U CN 201320409009U CN 203312945 U CN203312945 U CN 203312945U
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magnetic
rotor
magnet steel
steel
permanent
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CN2013204090099U
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Chinese (zh)
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王贤长
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Ruichang City Sen Aoda Science and Technology Ltd.
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王贤长
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Abstract

The utility model provides a permanent magnetic rotor of a three-phase asynchronous motor. The permanent magnetic rotor is characterized in that an outer side of a central shaft is equipped with circular silicon steel sheets, and a loop of conducting bars are installed around outer sides of the circular silicon steel sheets and used for providing self-startup torque; the outer sides of the conducting bars are equipped with a plurality of magnetic steels arranged in an N-S pole alternative manner, and a permanent magnetic field is provided by the magnetic steels when the motor is switched into synchronous operation; each magnetic steel is divided into n segments, each segment of the magnetic steels has a height as 1/n times of the length of a rotor core, and the segments of the magnetic steels are pasted on the surface of the processed rotor successively in inclined rows according to inclined grooves of the conducting bars; the radian of each magnetic steel is equal to the excircle radian of the rotor core, each magnetic steel has the same width, and an induced current is provided by the rotor core for the conducting bars when startup; and fillers are disposed between every two adjacent magnetic steels, and the outer rings of the magnetic steels are coated with non-magnetic-conduction metal materials. The permanent magnetic rotor has the beneficial effects that the rotor body of the three-phase asynchronous motor is reprocessed and reconstructed, the magnetic steels are embedded in the rotor, and the three-phase asynchronous motor is changed to a three-phase permanent-magnet synchronous motor with a self-starting function.

Description

A kind of p-m rotor of threephase asynchronous
Technical field
The utility model relates to technical field of motors, relates in particular to a kind of p-m rotor of threephase asynchronous.
Background technology
Permanent magnet synchronous motor is compared with threephase asynchronous, without exciting current, power factor is high, when stable operation, there is no rotor copper loss, and then can reduce the corresponding wind moussing loss of fan, thereby make its efficiency improve 8%~10% than same specification threephase asynchronous, permanent magnet synchronous motor all can keep higher efficiency and power factor in 25%~120% nominal load scope, and while making light running, energy-saving effect is more remarkable.
And the technology of existing permanent magnet synchronous motor can not skewed slot due to rotor magnetic steel, can only solve by stator iron core chute the problem of groove slot ripples.So existing permanent-magnet synchronous motor rotor all can not operate on old motor stator, and its complex manufacturing of skewed stator slot, manufacturing cost is too high, old motor can only be as waste product, input cost is high, payoff period is long, and this just causes the existing permanent magnet synchronous motor can not spread.
Existing threephase asynchronous, after by the threephase stator winding, passing into the three-phase symmetrical alternating current, produce a rotating magnetic field, this rotating magnetic field cutting rotor winding, thereby produce induced current in the rotor winding, the rotor conductor of current-carrying produces electromagnetic force under the effect of stator rotating magnetic field, thereby forms electromagnetic torque on machine shaft, the drive motor rotation.Along with the size change of load, the rated speed of asynchronous motor also can, along with change, will reduce its efficiency so greatly.
So, at present threephase asynchronous is done to further improvement, make it become a kind of three-phase permanent-magnetic synchronous motors with self-starting function, be a kind of new development prospect of technical field of motors.
Summary of the invention
For to threephase asynchronous process and remould again in addition, make it become a kind of three-phase permanent-magnetic synchronous motors with self-starting function, the utility model provides a kind of p-m rotor of threephase asynchronous.
The purpose of this utility model is achieved through the following technical solutions: a kind of p-m rotor of threephase asynchronous, comprise axis, silicon steel sheet, sliver, filler, magnet steel, steel bushing, rotor core, wherein in the outside of axis, circular silicon steel sheet is installed, the sliver of one circle is installed around the outside of silicon steel sheet, sliver provides the self-starting torque, the outside of sliver is equipped with the polylith magnet steel, magnet steel is arranged according to the order that the N-S utmost point replaces, magnet steel provides permanent-magnetic field when motor incision synchronous operation, every block of magnet steel is divided into the n section, every section height is rotor core length 1/n times, every section magnet steel is tiltedly arranged and is attached to the rotor surface processed successively according to the skewed slot of sliver, the radian of magnet steel equates with the cylindrical radian of rotor core part, the width of every block of magnet steel is identical, rotor core can produce induced electromotive force together with stator core, induced current is provided while for sliver, starting, between two adjacent magnet steel, are fillers, filler is half magnetic conduction or non-magnet_conductible material, in the outer ring of magnet steel, be surrounded by non-magnetic metal material, in order to reinforce magnet steel and auxiliary sliver completes self-starting.
The invention has the beneficial effects as follows: to the rotor parent of threephase asynchronous process and remould again in addition, magnet steel is assisted in rotor, the polar arc ratio of magnet steel can be adjusted flexibly, make the detent torque of motor adjust flexibly as required to reach and can under full load conditions, reliably start, mechanical strength strengthens greatly, improve reliability, met or exceeded the energy-saving effect of existing permanent magnet synchronous motor.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is floor map of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
A kind of p-m rotor of threephase asynchronous, comprise axis 1, silicon steel sheet 2, sliver 3, filler 4, magnet steel 5, steel bushing 6, rotor core 7, wherein in the outside of axis 1, circular silicon steel sheet 2 is installed, the sliver 3 of one circle is installed around the outside of silicon steel sheet 2, sliver 3 provides the self-starting torque, the outside of sliver 3 is equipped with polylith magnet steel 5, magnet steel 5 is arranged according to the order that the N-S utmost point replaces, magnet steel 5 provides permanent-magnetic field when motor incision synchronous operation, every block of magnet steel 5 is divided into the n section, every section height is rotor core 7 length 1/n times, every section magnet steel 5 is tiltedly arranged and is attached to the rotor surface processed successively according to the skewed slot of sliver 3, the radian of magnet steel 5 equates with the cylindrical radian of rotor core 7 parts, the width of every block of magnet steel 5 is identical, rotor core 7 can produce induced electromotive force together with stator core, induced current is provided while for sliver 3, starting, two 5 of adjacent magnet steel are fillers 4, and filler 4 is half magnetic conduction or non-magnet_conductible material, in the outer ring of magnet steel 5, be surrounded by non-magnetic metal material, in order to reinforce magnet steel 5 and auxiliary sliver 3 completes self-starting.

Claims (1)

1. the p-m rotor of a threephase asynchronous, comprise axis, silicon steel sheet, sliver, rotor core, it is characterized in that: also comprise filler, magnet steel, steel bushing, wherein in the outside of axis, circular silicon steel sheet is installed, the sliver of one circle is installed around the outside of silicon steel sheet, the outside of sliver is equipped with the polylith magnet steel, magnet steel is arranged according to the order that the N-S utmost point replaces, every block of magnet steel is divided into the n section, every section height is rotor core length 1/n times, every section magnet steel is tiltedly arranged and is attached to the rotor surface processed successively according to the skewed slot of sliver, the radian of magnet steel equates with the cylindrical radian of rotor core part, the width of every block of magnet steel is identical, between two adjacent magnet steel, are fillers, filler is half magnetic conduction or non-magnet_conductible material, in the outer ring of magnet steel, be surrounded by non-magnetic metal material.
CN2013204090099U 2013-07-10 2013-07-10 Permanent magnetic rotor of three-phase asynchronous motor Active CN203312945U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013204090099U CN203312945U (en) 2013-07-10 2013-07-10 Permanent magnetic rotor of three-phase asynchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013204090099U CN203312945U (en) 2013-07-10 2013-07-10 Permanent magnetic rotor of three-phase asynchronous motor

Publications (1)

Publication Number Publication Date
CN203312945U true CN203312945U (en) 2013-11-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

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CN (1) CN203312945U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104052208A (en) * 2014-06-20 2014-09-17 王贤长 Method for transforming three-phase asynchronous motor into permanent magnet motor
CN104113152A (en) * 2013-07-10 2014-10-22 王贤长 Permanent magnet rotor of three-phase asynchronous motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104113152A (en) * 2013-07-10 2014-10-22 王贤长 Permanent magnet rotor of three-phase asynchronous motor
CN104052208A (en) * 2014-06-20 2014-09-17 王贤长 Method for transforming three-phase asynchronous motor into permanent magnet motor

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Ruichang City Sen Aoda Science and Technology Ltd.

Assignor: Wang Xianchang

Contract record no.: 2014360000138

Denomination of utility model: Permanent magnet rotor of three-phase asynchronous motor

Granted publication date: 20131127

License type: Exclusive License

Record date: 20140626

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20160317

Address after: 332200 Jiangxi Province, Jiujiang Ruichang City Industrial Park, West Park Road is booming

Patentee after: Ruichang City Sen Aoda Science and Technology Ltd.

Address before: 332200 Jiangxi Province, Jiujiang Ruichang City Town Village North poplar even Chen Jia Yi Group

Patentee before: Wang Xianchang

C41 Transfer of patent application or patent right or utility model