Permanent magnet auxiliary synchronous reluctance motor employing asymmetric rotor sheets

A technology of rotor punching and auxiliary synchronization, which is applied to magnetic circuits, magnetic circuits, and electric components characterized by magnetic materials, and can solve problems such as large electromagnetic noise and vibration, no self-starting operation, and large torque ripple. Achieve the effect of improving power factor, improving operating efficiency and reducing capacity

Inactive Publication Date: 2018-05-01
WOLONG ELECTRIC GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the general reluctance motor needs to be equipped with a special controller to run, and there is no self-starting operation function. Symmetrical and circumferentially uniform structure causes large torque ripple, resulting in large electromagnetic noise and vibration

Method used

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  • Permanent magnet auxiliary synchronous reluctance motor employing asymmetric rotor sheets
  • Permanent magnet auxiliary synchronous reluctance motor employing asymmetric rotor sheets
  • Permanent magnet auxiliary synchronous reluctance motor employing asymmetric rotor sheets

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Embodiment Construction

[0024] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] Such as Figure 1-3 As shown, a permanent magnet assisted synchronous reluctance motor adopts an asymmetric rotor punching plate, including a base 1, a front end cover 2, a rear end cover 3, a front bearing 4, a front bearing inner cover 5, a rear bearing 6, and a rear bearing inner cover Cover, wire stator 7, rotor core 8, rotating shaft 9, feet 10, fan blades 11, wind cover 12, rotor core 8 is formed by stacking iron core punching sheets of 4 magnetic poles 802, each magnetic pole 802 The geometric center line is the magnetic pole axis 807, the center of the iron core punching sheet is provided with a rotating shaft hole 801, and each magnetic pole 802 is provided with a permanent magnet group, and each permanent magnet group includes 3 permanent magnets 804 arranged along the magnetic pole axis 807, Both sides of each perm...

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Abstract

The invention relates to a permanent magnet auxiliary synchronous reluctance motor employing asymmetric rotor sheets, and relates to the field of motors. At present, the reluctance motor is of a symmetrical circumferential uniform distribution structure, torque pulsation is large, and electromagnetic noise and vibration are large. A rotor core is formed by laminating core sheets having several magnetic poles, the geometric center line of each magnetic pole is taken as the magnetic pole axis, the center of each core sheet is provided with a rotating shaft hole, each magnetic pole is provided with a permanent magnet set, each permanent magnet set comprises several permanent magnets arranged along the corresponding magnetic pole axis, two sides of each permanent magnet are provided with reluctance grooves, the reluctance grooves at two sides of each permanent magnet are asymmetric with respect to the corresponding magnetic pole axis, and the outer side of each permanent magnet set is provided with reluctance grooves which are asymmetric with respect to the corresponding magnetic pole axis. According to the technical scheme, a mode that a permanent magnet synchronous motor and a synchronous reluctance motor are combined is employed, the usage amount of permanent magnet material is reduced, and the cost is reduced; asymmetric rotor sheet structures are employed, the motor air gap magnetic field waveform is optimized, and electromagnetic noise and vibration in the motor operation process are reduced.

Description

technical field [0001] The invention relates to the field of motors, in particular to a permanent magnet assisted synchronous reluctance motor using asymmetrical rotor punching. Background technique [0002] At present, the general reluctance motor needs to be equipped with a special controller to run, and there is no self-starting operation function. The symmetrical and circumferentially uniform structure causes large torque ripple, resulting in large electromagnetic noise and vibration. Contents of the invention [0003] The technical problem to be solved and the technical task proposed by the present invention are to perfect and improve the existing technical solutions, and to provide a permanent magnet assisted synchronous reluctance motor with asymmetrical rotor punching for the purpose of reducing cost and reducing noise and vibration . For this reason, the present invention takes the following technical solutions. [0004] A permanent magnet assisted synchronous ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/02
CPCH02K1/2706H02K1/02H02K1/274H02K2213/03
Inventor 王国龙胡吉亮严伟灿孙军建王斌
Owner WOLONG ELECTRIC GRP CO LTD
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