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Split pole-changing variable-speed outer rotor asynchronous motor

A technology of asynchronous motors and electric motors, which can be applied to asynchronous induction motors, electrical components, electromechanical devices, etc., and can solve problems such as electromagnetic noise.

Active Publication Date: 2017-05-31
连云港锐宝电机有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of electromagnetic noise generated when ordinary ceiling fan motors adopt the thyristor chopper speed regulation method for stepless speed regulation, and provide a split pole-changing pole-changing speed outer rotor asynchronous motor

Method used

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  • Split pole-changing variable-speed outer rotor asynchronous motor
  • Split pole-changing variable-speed outer rotor asynchronous motor
  • Split pole-changing variable-speed outer rotor asynchronous motor

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Embodiment Construction

[0023] The present invention is further described below in conjunction with accompanying drawing.

[0024] refer to Figure 1 to Figure 8 , The split pole variable speed external rotor asynchronous motor includes a stator part and a rotor part. The working winding coil and the starting winding coil of the stator part of the motor are arranged in two inner and outer circles in structure, the number of working winding coils is not equal to the number of starting winding coils, and the number of working winding coils is equal to twice the number of stator poles of the low-speed gear motor. The number of winding coils is equal to the number of poles in the stator of the low gear motor. The working winding coil of the stator part is connected to the working winding circuit, the starting winding coil of the stator part is connected to the starting winding circuit, and a capacitor is connected in series in the starting winding circuit, and the capacitor phase-shifting starting metho...

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Abstract

The invention provides a split pole-changing variable-speed outer rotor asynchronous motor and relates to a motor. The split pole-changing variable-speed outer rotor asynchronous motor comprises a stator component and a rotor component. By changing a connection type of a working winding coil in a working winding circuit and changing the connection type of a starting winding coil in a starting winding circuit at the same time, the quantity of stator magnetic poles of the motor is adjusted, pole changing and speed changing of the motor are realized, and the demand of a blower-pump load on a low-cost small-type motor energy saving technology is met. When the motor operates at a low speed gear, a silicon controlled chopping speed regulation method is adopted for lowering the terminal voltage of the motor, compared with the technical scheme that a common outer rotor asynchronous motor adopts the silicon controlled chopping speed regulation method for obtaining the same low rotational speed, the reduction extent of the terminal voltage of the motor is relatively small, waveform distortion of silicon controlled alternating current voltage is relatively small, electromagnetic noise of the motor during operation at a low rotational speed can be effectively inhibited, the copper loss of the motor is reduced, and the motor efficiency is improved.

Description

technical field [0001] The invention relates to a split pole-changing variable-speed external rotor asynchronous motor, which relates to an electric motor, in particular to a split-pole-changing variable-speed external rotor asynchronous motor. Background technique [0002] The shaft power of the fan pump load is proportional to the cube of the speed, and the size of the fan pump load can be adjusted by adjusting the motor speed. There are usually two technical solutions for adjusting the speed of the motor: the frequency conversion speed regulation method and the pole-changing speed-changing method. The frequency conversion speed regulation method needs to configure the frequency converter, the cost is relatively high. In order to reduce costs, many indoor fans and outdoor fans of household inverter air conditioners use the PG motor speed regulation method. The PG motor speed regulation method is to adjust the terminal voltage of the single-phase AC asynchronous motor by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K17/16H02K17/06H02K17/08
CPCH02K17/06H02K17/08H02K17/16
Inventor 赵晓东
Owner 连云港锐宝电机有限公司
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