Split-pole capacitance phase-shifted pole-changing variable-speed asynchronous motor
A technology for asynchronous motors and electric motors, applied to asynchronous induction motors, electrical components, electromechanical devices, etc., can solve problems such as difficulty in embedding wires, and achieve the effect of simple winding process and low cost
Active Publication Date: 2017-05-31
浙江兆峰电机有限公司
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Problems solved by technology
[0006] The purpose of the present invention is to overcome the disadvantage of the difficulty in embedding the distributed stator windings of ordinary pole-changing and speed-changing asynchronous motors, and to provide a pole-changing and speed-changing asynchronous motor using centralized windings
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[0026] The present invention is further described below in conjunction with accompanying drawing.
[0027] refer to Figure 1 to Figure 7 , The asynchronous motor with split pole capacitive phase shifting, pole changing and variable speed includes a stator part and a rotor part 7 . The magnetic poles of the stator of the motor are two poles / four poles, and the stator part has eight winding coils 35 which are respectively connected in the working winding circuit or the starting winding circuit, and capacitors are connected in series in the starting winding circuit. The two ends are connected in parallel with the two ends of the starting winding line to connect to the AC power supply. On the radial inner side of the stator core 23 of the stator component, there are four main poles and four auxiliary poles arranged alternately along the circumferential direction. By changing the connection mode of the eight winding coils 35 in the working winding circuit or the starting winding...
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The invention provides a split-pole capacitance phase-shifted pole-changing variable-speed asynchronous motor which comprises a stator component and a rotor component. In the stator component, eight winding coils are respectively connected in a working winding circuit or a starting winding circuit, the starting winding circuit is connected with a capacitor in series, a capacitance phase shifting starting way is adopted, and the two ends of the working winding circuit and the two ends of the starting winding circuit are connected in parallel and are connected with an alternating current power supply. Four main pole bodies and four secondary pole bodies are alternately arranged along the circumferential direction at the inner side of the radial direction of a stator iron core of the stator component. By changing a connection type of the eight winding coils in the working winding circuit or the starting winding circuit, pole changing and speed changing are realized, and the demand of a blower-pump load on a low-cost small-type motor energy saving technology is met. The motor provided by the invention adopts a centralized winding structure, and a winding processing technology of a stator winding is simple and low in cost and is applicable to a miniature motor.
Description
technical field [0001] The invention relates to a split-pole capacitive phase-shifting pole-changing variable-speed asynchronous motor, which relates to a motor, in particular to a pole-changing variable-speed asynchronous motor adopting a concentrated winding. 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 async...
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IPC IPC(8): H02K17/06H02K17/10H02K17/14H02K17/16
CPCH02K17/06H02K17/10H02K17/14H02K17/16
Inventor 赵晓东
Owner 浙江兆峰电机有限公司