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Draining pump of washing machine

A technology for drainage pump and washing machine, which is applied to washing machine appliances, other washing machines, pumps, etc., can solve the problems of shortening the service life of the motor, increasing the load of the motor, and complex structure of the impeller and pump cavity.

Active Publication Date: 2013-09-04
CHANGZHOU LEILI MOTOR SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the drum washing machine has reduced one motor, the two water pumps use different pump casings, and the structure of the impeller and the pump chamber is relatively complicated, so the process is not actually simplified; in addition, because there are still two water pumps, the motor is increased instead. The load increases the wear on the motor and shortens the service life of the motor

Method used

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  • Draining pump of washing machine
  • Draining pump of washing machine
  • Draining pump of washing machine

Examples

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Effect test

Embodiment 1

[0020] See figure 2 and image 3 , This embodiment includes a motor 1, a pump casing 2, an impeller 3, a drainage pipe 4, a circulation pipe 5 and an arc stopper 6.

[0021] The motor 1 is a brushless permanent magnet DC motor capable of forward and reverse rotation. The motor 1 is fixed on the bottom of the pump casing 2 . The lower part of the pump casing 2 is a pump chamber 21 , and the upper part is a water inlet 22 . The impeller 3 is located in the pump cavity 21 of the pump casing 2 and is fixed on the motor shaft of the motor 1 . The drainage pipe 4 and the circulation pipe 5 are arranged in the same direction, and are respectively fixed on both sides of the pump casing 2 , and both are tangent to the inner wall of the pump chamber 21 . The arc-shaped stopper 6 is fixed at the intersection of the drain pipe 4 and the inner wall of the pump chamber 21 .

[0022] See Figure 4 When the washing machine drains water, the impeller 3 rotates clockwise under the drive ...

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PUM

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Abstract

Disclosed is a drain pump for a washing machine, which comprises a motor, a pump housing, an impeller, a drain pipe and a circulating pipe. The motor is fixed at the lower part of the pump housing. The pump housing is provided with a pump chamber at the lower part and a water inlet at upper part thereof. The impeller is located inside the pump chamber of the pump housing and fixed at the shaft of the motor. The drain pipe and the circulating pipe are arranged in the same direction, and fixed at both sides of the pump housing respectively, moreover, both of them are tangent to the inner wall of the pump chamber. Water circulation or drainage is controlled by dominating the rotating direction of the motor, thus the function of water circulation and drainage can be achieved by means of one pump housing.

Description

technical field [0001] The invention relates to a washing machine drainage pump. Background technique [0002] The motor used in the existing washing machine drainage pump is a single-phase permanent magnet synchronous motor. On the one hand, due to the limitation of its own characteristics, the steering and speed of the motor cannot be controlled, and it is an "uncontrollable" motor; on the other hand, see figure 1 In order for the washing machine to realize the circulation of the washing water in the washing tub and discharge the washing water after washing, two independent circulation pumps and drainage pumps need to be installed in the washing machine. The motor for driving the drain pump increases the manufacturing cost, and also increases the power consumption of the washing machine and the complexity of the internal pipeline. [0003] Chinese patent document CN03109634.4 provides a "drum washing machine", including: a circulation pump, a drainage pump and a motor, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06F39/08F04D13/06
CPCY02B40/52D06F39/085Y02B40/00
Inventor 王胜夏长植沈玉明贺寅邵韦肖楠
Owner CHANGZHOU LEILI MOTOR SCI & TECH
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