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Directional rotation single-phase self-starting permanent-magnet synchronous motor

A technology of directional rotation and permanent magnet synchronization, applied in the direction of starting devices, electronic commutators, etc., can solve problems such as high cost, high anti-interference ability requirements, and unstable product quality, so as to achieve stable product performance and reduce complexity Sexuality and cost reduction effect

Active Publication Date: 2015-12-23
JIANGMEN SUNYA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Experiments show that the motor has high requirements on the fast response of the control components and the anti-interference ability of the layout, so the cost is high and the product quality is not stable

Method used

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  • Directional rotation single-phase self-starting permanent-magnet synchronous motor
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  • Directional rotation single-phase self-starting permanent-magnet synchronous motor

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Embodiment Construction

[0023] The basic structure of the electromagnetism of the embodiment of the present invention is as follows: figure 1 shown, which includes:

[0024] ——The rotor 200 is a 4-pole permanent magnet rotor whose cross section is divided into four symmetrical 90° sectors by two mutually perpendicular symmetry axes 400 and whose radial magnetization is N, S, N, S;

[0025] - The stator 100 is composed of a circular iron core 101 with 4 salient poles and a winding 12; the winding 12 is a coil element with an insulating frame wound on each of the 4 salient poles, and then connected in series according to the winding direction to form 4 poles, and Therefore, when energized, a 4-pole main magnetic flux passing through the air gap between the stator and rotor is generated;

[0026] ——The width of the air gap between each salient pole of the stator core 101 and the rotor 200 gradually narrows in the counterclockwise direction; Attraction, the geometric axis of each pole, that is, the per...

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Abstract

Provided is a directional rotation single-phase self-starting permanent-magnet synchronous motor. The width of an air gap between a stator and a magnet rotor becomes narrower in a lower edge set peripheral direction of each pole; a stator winding of a prescribed winding direction is connected to an AC power source through a switch; a built-in program includes the staring step of driving the switch to control the current of the AC power source inputted into the winding according to a detected signal, and includes allowing two kinds of voltage pulses of opposite polarities to be respectively applied to the winding when the rotor stops, wherein impulse wave shapes are same, and energy is small enough to keep the turning resting position of the rotor within a prescribed angle; the current respectively generated by the pulses at the winding is detected and compared, and the switch is turned on when the polarity of the AC power source is the same with the polarity of the voltage pulse generating lower current, allowing the AC power source to continuously input alternating current into the winding. The design reduces motor control program complexity, and the requirements for components and circuits, lowers costs, and obtains more stable product performances.

Description

technical field [0001] The invention relates to a directional rotating single-phase self-starting permanent magnet synchronous motor, in particular to the electronically controlled motor without a separate rotor position detection element. In the international patent classification table, the classification can belong to H02P6 / 18. Background technique [0002] In the prior art, an electronically controlled single-phase self-starting permanent magnet synchronous motor without a separate rotor position detection element performs start-up control in a predetermined direction of rotation by detecting the counter electromotive force when the winding current is zero, as can be seen in the prior application CN102904510A and so on. Experiments show that the motor has high requirements on the fast response of the control components and the anti-interference ability of the arrangement, so the cost is high and the product quality is not stable. Contents of the invention [0003] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/18H02P6/22
Inventor 叶露微
Owner JIANGMEN SUNYA MOTOR CO LTD
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