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Electronic-control and directionally-rotating single-phase self-starting permanent-magnet synchronous motor

A technology of directional rotation and electronic control, applied in synchronous motors with stationary armatures and rotating magnets, synchronous machines, synchronous machine parts, etc., which can solve the problems of complicated detection circuits and programs, etc.

Active Publication Date: 2017-11-03
HANYU GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The latter saves the cost of Hall elements and circuits, but the detection circuit and program become complicated

Method used

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  • Electronic-control and directionally-rotating single-phase self-starting permanent-magnet synchronous motor
  • Electronic-control and directionally-rotating single-phase self-starting permanent-magnet synchronous motor
  • Electronic-control and directionally-rotating single-phase self-starting permanent-magnet synchronous motor

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Embodiment Construction

[0036] The motor of the first embodiment of the present invention is improved on the basis of the motor described in the embodiment of the CN201510649087.X publication, and its basic electromagnetic structure is as follows figure 1 shown, including:

[0037] ——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;

[0038] - 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 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 thus When energized, a 4-pole main magnetic flux passing through the air gap between the stator and rotor is generated;

[0039] ——The width of the air gap between each salient pole of the stator core 101 and the rotor 200 gradually narrows in...

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Abstract

An electronic-control and directionally-rotating single-phase self-starting permanent-magnet synchronous motor comprises a stator, a permanent-magnet rotor, a switch and a control circuit, wherein the stator and the permanent-magnet rotor are same in pole number, the axis of each pole of the stator rotates by an acute angle along a set circumferential direction by taking an axis of a pole nearest to the stator in a free state, a stator winding has a stipulated winding direction and is accessed to an AC power supply through the switch, the control circuit comprises a detection circuit and a built-in program, the built-in program comprises the step of driving the switch to control the AC power supply so as to make the winding energized according to a detected signal, and magnetism with stipulated polarity is shown on a pole surface of a stator core before starting the motor. By the design, the pre-positioning detection process of a traditional technology during starting of the motor is omitted, thus, the performance is improved, and the cost is reduced.

Description

technical field [0001] The invention relates to an electronically controlled directional rotation single-phase self-starting permanent magnet synchronous motor, and its IPC classification belongs to H02P6 / 22. Background technique [0002] The single-phase self-starting permanent magnet synchronous motor is directly connected to the power supply, and its direction of rotation is uncertain. In order to make it start and run according to the predetermined direction, it is necessary to control its power supply: the first step is pre-positioning - determine the position of the magnetic pole of the permanent magnet rotor relative to the magnetic pole of the stator, and then apply a voltage of the corresponding polarity waveform to the stator according to the pre-positioning result and the predetermined direction . Existing technology implements pre-location by detection. In the early days, the permanent magnet polarity of the rotor was detected by the Hall element fixed at the s...

Claims

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Application Information

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IPC IPC(8): H02K21/14H02K21/02H02K11/30H02K1/12
CPCH02K1/12H02K11/30H02K21/022H02K21/14H02K2201/03
Inventor 叶露微
Owner HANYU GRP CO LTD
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