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Single-phase permanent magnet motor and stator core thereof

A stator and magnetic core technology, which is applied to synchronous motors, magnetic circuits, and synchronous machines for single-phase currents, can solve problems such as unstable motor operation and noise generation, and achieve the effect of improving overall performance

Inactive Publication Date: 2017-03-08
JOHNSON ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pole arms of the stator magnetic core of this type of motor are separated, and a large gap is formed between the two pole claws. The gap causes a large cogging torque between the stator and the rotor, resulting in unstable operation of the motor, resulting in noise

Method used

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  • Single-phase permanent magnet motor and stator core thereof
  • Single-phase permanent magnet motor and stator core thereof
  • Single-phase permanent magnet motor and stator core thereof

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Embodiment Construction

[0025] The technical solutions and other beneficial effects of the present invention will be apparent through the detailed description of specific embodiments of the present invention below in conjunction with the accompanying drawings. It can be understood that the drawings are provided for reference and illustration only, and are not intended to limit the present invention. The dimensions shown in the drawings are only for the convenience of clear description, and do not limit the proportional relationship.

[0026] Figure 1-2 Shown is a schematic structural view of a single-phase permanent magnet motor according to an embodiment of the present invention, the motor includes a stator core 10, a winding (not shown) wound on the core 10, and a coil rotatably arranged on the core 10 The permanent magnet rotor 12 in 10. In the illustration, in order to clearly show the structure and characteristics of the stator magnetic core 10 of the motor of the present invention, some comp...

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Abstract

The invention discloses a single-phase permanent magnet motor, which comprises a stator core, a winding wound on the stator core and a permanent magnet rotor capable of rotating relative to the stator, wherein the stator core comprises an end part and a pole arm extending outside from the end part; the pole arm comprises two connection arms which are arranged at an interval and pole claws; the pole claws are formed at the tail ends of the connection arms respectively; a space is formed in the two pole claws to accommodate the rotor; the pole claws surround the space to form pole arc surfaces; one part of pole arc surfaces are continuous in the circumferential direction and one part of pole arc surfaces are broken in the circumferential direction; and the broken positions of the pole arc surfaces correspond to the interval between the connection arms.

Description

technical field [0001] The invention relates to a single-phase motor, in particular to a stator magnetic core of a single-phase permanent magnet motor. Background technique [0002] A single-phase permanent magnet motor usually consists of a stator core, a stator winding, and a permanent magnet rotor. Among them, the stator magnetic core is roughly U-shaped, including two pole arms arranged at intervals. The end of each pole arm forms a pole claw, and the inner wall of each pole claw is concave to form a pole arc surface. The winding is wound on the pole arm On the other hand, the rotor is arranged between the two pole claws, opposite to the arc surface of the pole. The pole arms of the stator magnetic core of this type of motor are separated, and a large gap is formed between the two pole claws. The gap causes a large cogging torque between the stator and the rotor, resulting in unstable operation of the motor, resulting in noise. Contents of the invention [0003] In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/12
CPCH02K21/185H02K29/03H02K1/143H02K1/145H02K3/521H02K1/14H02K1/2706H02K3/18H02K19/04
Inventor 李越周垂有王勇李勇
Owner JOHNSON ELECTRIC SHENZHEN