Rotor and self-starting three-phase permanent magnet motor

A permanent magnet motor, self-starting technology, applied in the field of electric motors, can solve the problems of large overall size of the motor, inability to meet, inability to meet large starting torque and pull-in torque, etc., and achieves compact structure, increased practicability, and overall size. reduced effect

Inactive Publication Date: 2010-05-19
三一集团有限公司北京分公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The starting torque of a motor with a laminated rotor is smaller than that of a motor with a solid rotor, so it cannot meet the applications that require large starting torque and pull-in torque; although a motor with a solid rotor structure can meet the above However, due to the tangential magnetic circuit structure, the overall size of the motor is large, so it cannot meet the demand for a compact motor in the coal mining field

Method used

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  • Rotor and self-starting three-phase permanent magnet motor
  • Rotor and self-starting three-phase permanent magnet motor
  • Rotor and self-starting three-phase permanent magnet motor

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Embodiment Construction

[0019] The implementation of the self-starting three-phase permanent magnet motor of the present invention will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

[0020] figure 1 shows an assembly half-sectional view of a self-starting three-phase permanent magnet motor 100 according to the present invention, figure 2 A cross-sectional view of the rotor 120 therein is shown. As shown in the figure, the self-starting three-phase permanent magnet motor 100 according to the present invention includes a stator part 110 and a rotor 120 installed in the stator 110, and the stator 110 includes a stator core 111 and a stator winding wound outside the stator core 111 112. The stator 110 also includes a front end cover 115, a front inner cover 115, an end plate 116, a rear inner cover 117, a rear end cover 118 and a junction box 119, the above components are used to securely install the stator 110 and the rotor 12...

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Abstract

The invention provides a rotor, which is used for a self-starting three-phase permanent magnet motor. The rotor is a mixed magnetic circuit solid rotor and comprises a rotating shaft and a pole shoe arranged around the rotating shaft, and the rotor also comprises a first permanent magnet and a second permanent magnet, wherein the first permanent magnet is arranged around the rotating shaft and is positioned between the rotating shaft and the pole shoe, and generates radial magnetic circuit; and the second permanent magnet is arranged around the rotating shaft and is positioned in the pole shoe, and generates a tangential magnetic circuit.

Description

technical field [0001] The invention relates to the field of motors, in particular to a rotor in a self-starting three-phase permanent magnet motor. Background technique [0002] In the prior art, the rotor of the permanent magnet motor mainly adopts two structural forms, one type of rotor is formed by lamination of punched sheets, and the other type of rotor adopts a non-laminated solid structure. The starting torque of a motor with a laminated rotor is smaller than that of a motor with a solid rotor, so it cannot meet the applications that require large starting torque and pull-in torque; although a motor with a solid rotor structure can meet the above However, due to the use of a tangential magnetic circuit structure, the overall size of the motor is relatively large, so it cannot meet the demand for a compact motor in the coal mining field. Contents of the invention [0003] The object of the present invention is to provide a self-starting three-phase permanent magnet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K3/487H02K21/12H02K21/02
Inventor 马贤好李海莹关旸
Owner 三一集团有限公司北京分公司
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