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Electric motor for washing machine and washing machine having the electric motor

A washing machine and electric motor technology, applied in the field of electric motors, can solve the problems of rusted electric motor performance, terminal short circuit, short circuit, etc., and achieve the effect of preventing performance degradation

Active Publication Date: 2007-02-14
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Especially in the case of an outer rotor type motor in which the stator is disposed on the inner side of the rotor, the condensed dew formed in the outer tank adheres to the coils and terminals of the stator, causing short circuits, rust, and poor performance of the motor.
[0006] In addition, the power transmission mechanism of the motor, such as the drive shaft, is coated with grease for lubrication and waterproofing, but iron filings generated by various components, such as springs, etc., will be mixed into the grease, and these iron powders will adhere to the terminal part cause a short circuit

Method used

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  • Electric motor for washing machine and washing machine having the electric motor
  • Electric motor for washing machine and washing machine having the electric motor
  • Electric motor for washing machine and washing machine having the electric motor

Examples

Experimental program
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Embodiment Construction

[0030] A washing machine 10 equipped with a washing machine motor 30 according to the present invention will be described with reference to the drawings.

[0031] figure 1 It is a cross-sectional view of a washing machine 10 equipped with a washing machine motor 30 according to the present invention, figure 2 is an enlarged sectional view of the drive mechanism. The washing machine 10 is constituted as a bottomed circular tank with a plurality of dehydration holes (not shown) on the peripheral wall that is freely rotatably supported inside a bottomed cylindrical outer tank 12 (water storage tank) that is suspended and supported by a casing 11. Cylindrical inner tank 13 (dehydration tank). On the inner bottom surface of the inner tank 13, an agitator 15 (agitator blade) for agitating the laundry is rotatably supported.

[0032] The inner tank 13 extends from a hollow main shaft 14 on the bottom side, and an impeller shaft 16 serving as an agitator 15 is fitted to the main s...

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PUM

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Abstract

The invention provides a motor for washing machine which can be used over a long term without deteriorating the performance by enhancing waterproofness of the coil and the terminal of a stator. The motor for washing machine comprises a stator 40 formed by laminating a plurality of cores 41 having a plurality of teeth 43 projected from an annular yoke 42 toward the outer circumference, molding the core with insulating resin and then winding a coil 51 around the teeth 43 from above the insulating resin mold 52, and a rotor 70 located coaxially with the stator 40 and having a plurality of magnets 72 arranged at positions opposing the teeth 43 wherein the stator 40 is molded of waterproof resin.

Description

technical field [0001] The present invention relates to a motor capable of rotating an inner tank and an agitator of a washing machine, and more particularly relates to a motor for a washing machine capable of improving the waterproofness of a stator. Background technique [0002] The motor that rotates the inner tank and the agitator of the washing machine is composed of a stator wound with coils and a freely rotatable rotor arranged on the inner or outer circumference of the stator. The inner tank and the stirrer are rotated (for example, refer to Patent Document 1). [0003] In general, a motor in which a stator is arranged on the inner periphery of a rotor is called an outer rotor type motor, and a motor in which a stator is arranged on the outer periphery of a rotor is called an inner rotor type motor. [0004] (Patent Document 1) JP-A-2000-152529 [0005] Especially in the case of an outer rotor type motor in which the stator is disposed on the inner side of the roto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/12H02K1/14H02K1/18
Inventor 大谷利夫相良弘明吉田实
Owner HAIER GRP CORP
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