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Self-start permanent magnet synchronous motor rotor structure

A rotor structure, synchronous motor technology, applied in the magnetic circuit shape/style/structure, synchronous motors with static armatures and rotating magnets, magnetic circuit rotating parts, etc. The structure, the main magnetic pole magnetic flux is moderately weakened, etc.

Inactive Publication Date: 2005-02-16
朱明聪 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is no setting in this prior art that can moderately weaken the magnetic flux of the main magnetic pole of the motor, and make the self-sustained rotation caused by the magnetic flux of the main magnetic pole of the motor during the transient state of the self-starting permanent magnet synchronous motor from stop to start. The torque can be reduced, and the starting characteristics of the motor can be improved
Moreover, this existing patent is not provided with a squirrel cage structure, so it cannot be started automatically without the help of other devices

Method used

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  • Self-start permanent magnet synchronous motor rotor structure
  • Self-start permanent magnet synchronous motor rotor structure
  • Self-start permanent magnet synchronous motor rotor structure

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Embodiment Construction

[0053] Such as Figure 10 Shown is a three-dimensional schematic diagram of a self-starting permanent magnet synchronous motor 1010 using a stator straight slot according to the present invention and a self-starting permanent magnet synchronous motor 1040 using a stator inclined slot according to the present invention. The self-starting permanent magnet synchronous motor 1010 using stator straight slots of the present invention includes a stator 1012 , a rotor 1014 , and an axis 1016 , wherein the stator 1012 has stator straight slots 1018 . Furthermore, the self-starting permanent magnet synchronous motor 1040 using a stator chute of the present invention includes a stator 1042 , a rotor 1044 , and a shaft 1046 , wherein the stator 1042 has a stator chute 1048 .

[0054] Such as Figure 11As shown, the self-starting permanent magnet synchronous motor 11 of the first embodiment of the present invention includes an outer stator 1101 (hereinafter referred to as the stator 1101 ...

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Abstract

The rotor structure includes an axle center and four sectorial main poles. Circular arc of surface is first eccentric arc of magnetic surface. Four pieces of first eccentric point O1 are obtained by setting bias length OSl from center O of rotor. The first eccentric arc of magnetic surface makes maximum air gap T equal to about 2-5 times of minimum air gap t1. Four blocks of permanent magnets are configured in inside tracks of each sectorial main pole. Multiple conductor accommodating slots for forming squirrel cage windings, which are allocated in sectorial main pole, are in shape of pear shape. Four dinges are setup at middle point of first eccentric arc of magnetic surface.

Description

technical field [0001] The present invention relates to a self-starting permanent magnet (LSPM, line start permanent magnet) synchronous motor rotor structure (or simply called a self-starting permanent magnet synchronous motor), especially a combination of the advantages of an induction motor and a synchronous motor The self-starting permanent magnet synchronous motor rotor structure can reduce the cogging torque and improve the starting characteristics of the hybrid type motor. Background technique [0002] The common self-starting permanent magnet synchronous motor is a compound motor. Its stator structure is the same as that of an AC induction motor (AC induction motor) or an AC synchronous motor (AC synchronous motor), but its rotor structure combines AC A squirrel cage structure in the rotor of an induction motor and a permanent magnet structure in the rotor of an AC permanent magnet synchronous motor. This composite self-starting permanent magnet synchronous motor ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K21/12
Inventor 朱明聪陈明志
Owner 朱明聪
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