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Magnetic flux concentrating motor

A technology of flux concentration and flux, applied in the field of flux-concentrated motors, can solve problems such as the failure of the overhang part, and achieve the effects of improving overall performance, torque, and torque.

Inactive Publication Date: 2006-05-10
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the overhanging part loses its function when the length of the overhanging part increases to a specified value or exceeds, the disadvantage of the conventional surface mount permanent magnet motor is that the increase in back electromotive force is limited

Method used

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  • Magnetic flux concentrating motor
  • Magnetic flux concentrating motor
  • Magnetic flux concentrating motor

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Embodiment Construction

[0035] Now, a preferred embodiment of the permanent magnet motor of the present invention will be described in detail with reference to the accompanying drawings.

[0036] Figure 5 is a plan view of a flux-concentrated motor according to the present invention.

[0037] The flux-concentrated motor of the present invention includes: an annular stator 50 formed with a plurality of teeth 53 and coils 55 wound on the teeth 53 in the radial direction; and a rotor 60 located at the center of the stator 50, including a A plurality of magnets in the circumferential direction, whereby the magnets have poles of the same polarity facing each other, and the rotor rotates by interaction with the coil 55 of the stator 50 .

[0038] The stator 50 includes: an annular iron core 51 formed on an outer surface; a plurality of teeth 53 protruding from an inner circumferential surface of the iron core 51 toward the rotor 60 and arranged in a radial direction; and coils 55 wound on corresponding t...

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Abstract

A flux concentration type motor comprising an annular stator in which coils are wound on a plurality of radially arranged teeth; and a rotor located at the center of the stator and having a plurality of magnets arranged in a circumferential direction, whereby the The magnetic poles of the same polarity of the magnets are opposed to each other, and the rotor rotates under the interaction with the stator, thereby preventing the leakage of the magnetic flux of the magnets, thereby, compared with the conventional surface mount permanent magnets having the same volume Compared with the magnetic motor, the torque is increased, the manufacturing cost is reduced, and it contributes to the miniaturization of the product.

Description

technical field [0001] The invention relates to a motor for driving a washing machine, in particular to a flux-concentrated motor with an internal rotatable structure. Background technique [0002] Generally, permanent magnet motors are classified into surface mount permanent magnet motors and embedded permanent magnet motors according to the structure of the magnetic circuit. [0003] Motors for direct drive washing machines are external rotor type, surface mount permanent magnet type motors. [0004] figure 1 and figure 2 The motor driving the washing machine is shown. figure 1 and figure 2 An exploded perspective view and a plan view, respectively, of an externally rotatable motor, a type of conventional surface mount permanent magnet type motor. [0005] In the above-mentioned surface-mounted permanent magnet motor, the rotor 20 is mounted on the outside of the stator 10, the motor mainly includes the stator 10, and the rotor 20, and the rotor 20 is rotatably moun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K1/27H02K3/12
CPCH02K1/2773H02K21/16H02K3/522H02K15/03
Inventor 李成浩朴镇洙金永宽金德镇
Owner LG ELECTRONICS INC