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Single-phase permanent magnet motor

A single-phase permanent magnet motor, magnetic core technology, applied to synchronous motors with stationary armatures and rotating magnets, magnetic circuits, electric components, etc., can solve the problem of poor starting reliability, small positioning starting angle, and large motor positioning torque and other problems, to achieve the effect of good startup reliability

Active Publication Date: 2017-06-13
JOHNSON ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of the large notch, the motor will generate a large positioning torque, resulting in vibration and noise
Moreover, restricted by the notch, the positioning start angle is small, and the start reliability is poor

Method used

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other ...

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Abstract

The invention discloses a single-phase permanent magnet motor. The single-phase permanent magnet motor comprises a stator and a rotor, wherein the stator comprises a stator magnetic core and a winding which is wound around the stator magnetic core; the stator magnetic core comprises an external yoke part and a plurality of stator teeth; each stator tooth comprises a winding part and a pole shoe connected with one end of the winding part; the winding winds the corresponding winding part; each pole shoe comprises a pole face; a first positioning groove which extends in the direction of a stator axis is formed in the middle position of the pole face; at least one second positioning groove is also formed in each pole face; the second positioning groove is formed in the same side of the first positioning groove; and by virtue of the first and second positioning grooves, the initial position of the motor rotor which is rotationally accommodated in the stator deviates from a dead point position. By virtue of the stator, the rotor starting is high in reliability.

Description

technical field [0001] The invention relates to the field of motors, in particular to a single-phase permanent magnet motor. Background technique [0002] The motor permeable chip of the single-phase permanent magnet motor in the prior art usually adopts an integral structure, that is, the permeable core includes a yoke and teeth protruding inward from the yoke, and the yoke and the teeth are simultaneously formed into One-piece structure, large slots are set between the pole pieces of adjacent teeth. Due to the existence of the large notch, the motor will generate a large positioning torque, thereby generating vibration and noise. Moreover, restricted by the notch, the positioning starting angle is small, and the starting reliability is poor. Contents of the invention [0003] In view of this, the present invention aims to provide a novel single-phase permanent magnet motor capable of improving starting reliability. [0004] A single-phase permanent magnet motor includ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/16
CPCH02K1/165H02K1/2733H02K29/03H02K1/148H02K21/16H02K1/274H02K1/14H02K2201/03H02K1/146H02K1/2706H02K3/18
Inventor 李越张涛柴捷周垂有周强
Owner JOHNSON ELECTRIC SHENZHEN
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