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Circulating pump driving device and laundry processing apparatus

A driving device and processing device technology, which is applied in the direction of pump devices, washing devices, washing machine control devices, etc., can solve the problems of not disclosing the circulation pump motor, the time required for the completion of drainage to be longer, etc., and achieve the effect of improving the washing power

Active Publication Date: 2021-04-13
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In such conventional documents, since the speed control is performed during the control of the drainage pump motor, there is a disadvantage that the time required for the completion of drainage becomes longer during drainage.
[0011] And, in such existing documents, the disclosure is about the content of the drainage pump motor control rather than the content of the circulation pump motor control, and only the case of performing speed control when the drainage pump motor control is disclosed, and the circulation is not disclosed. Contents related to various operations of the pump motor

Method used

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  • Circulating pump driving device and laundry processing apparatus
  • Circulating pump driving device and laundry processing apparatus
  • Circulating pump driving device and laundry processing apparatus

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Embodiment Construction

[0047] Hereinafter, the present invention will be described in more detail with reference to the drawings.

[0048] The suffixes "module" and "part" used in the following description for structural elements are given only for the convenience of writing the description, and do not have any important meaning or role in themselves. Therefore, "module" and "section" may be used interchangeably.

[0049] figure 1 is a perspective view showing a laundry treating device according to an embodiment of the present invention, figure 2 yes figure 1 Side sectional view of the laundry treatment unit.

[0050] refer to Figure 1 to Figure 2 , in the laundry treatment device 100 of one embodiment of the present invention, the laundry treatment device 100 of one embodiment of the present invention is a front load type laundry treatment in which the laundry is put into the washing tank from the front. device.

[0051] The description is as follows with reference to the accompanying drawi...

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PUM

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Abstract

The present invention pertains to a circulating pump driving device and a laundry processing apparatus. The circulating pump driving device and the laundry processing apparatus according to embodiments of the present invention include: an inverter which converts DC power from a converter into AC power by means of a switching operation, and outputs, to a circulating pump motor, the AC power obtained through conversion; and a control unit which, when an operation mode is classified into a first mode in which the speed of the circulating pump motor is constant, a second mode in which the speed of the circulating pump motor repeatedly rises and falls, and a third mode in which the speed of the circulating pump motor rises at a first ascending slope and a second ascending slope and is then maintained constant, controls the device or apparatus to operate in at least two modes among the three modes. Accordingly, washing power can be improved via circulation pumping when washing laundry.

Description

technical field [0001] The present invention relates to a circulation pump drive device and a laundry processing device, and more specifically, to a circulation pump drive device and a laundry processing device capable of improving the cleaning power by circulation suction during washing. [0002] Furthermore, the present invention relates to a circulation pump drive device and a laundry processing device capable of driving a circulation pump motor in a sensorless manner. [0003] Furthermore, the present invention relates to a circulation pump drive device and a laundry processing device capable of improving the stability of a converter. Background technique [0004] In the circulation pump driving device, the water supplied to the water inlet is sucked by driving the circulation pump motor, and the water is discharged to the inside of the washing tub. [0005] Generally, when an AC pump motor is used for driving a circulation pump, the motor is driven by constant-speed op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D15/02F04D15/00H02P27/06D06F39/08D06F34/04D06F105/46D06F34/10
CPCD06F34/10F04D15/0066D06F33/36D06F39/085D06F2105/06D06F2103/48H02P6/16Y02B40/00F04D15/0245H02P27/06D06F37/304F04D13/06F05D2210/11D06F2105/46D06F23/02D06F37/30H02M7/53871H02P27/08
Inventor 金俊成金志勋李俊浩
Owner LG ELECTRONICS INC