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Method for eliminating foam in a drum washing machine and drum washing machine suitable therefor

A washing machine, drum-type technology, applied to other washing machines, applications, washing devices, etc., which can solve the problems of prolonging the total washing program, increasing water consumption, and poor rotation of centrifugal dehydration

Active Publication Date: 2010-07-07
BOSCH SIEMENS HAUSGERATE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The disadvantage of the existing methods is that they sometimes lead to a considerable prolongation of the total washing program, greatly increase the consumption of water and produce poor results during the centrifuge spin

Method used

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  • Method for eliminating foam in a drum washing machine and drum washing machine suitable therefor
  • Method for eliminating foam in a drum washing machine and drum washing machine suitable therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] figure 1 The drum-type washing machine of the embodiment variant shown in has a detergent solution tub 1 in which a drum 2 is rotatably mounted and can be driven by means of a drive motor 14 . In order to improve people's operating comfort, the rotation axis 3 of the drum 2 is directed forward and upward at a small angle (for example 13°) with respect to the horizontal, so that the user of the drum type washing machine can more easily access and see the drum 2 internal. Moreover, by virtue of said arrangement, and in cooperation with the specially shaped laundry agitator blades 4 and the scooping structure 5 for the detergent solution 6 provided on the inner surface of the drum housing, the detergent The solution penetrates more strongly into the laundry 7 while reducing the free liquid, which represents the amount of detergent solution in the detergent solution tub 1 (mainly below the lowest point of the drum 2) that can no longer be absorbed by the saturated laundry....

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PUM

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Abstract

The invention relates to a method for eliminating foam in a drum washing machine having a program controller (12) for controlling a program sequence, a drum (2) rotatably supported in a detergent solution tub (1), a water supply system (8, 9, 10), a detergent solution discharge system disposed at the bottom of the detergent solution tub having a detergent solution pump (16), a drive motor (14) for the drum (2), and a sensor (15) for determining a foam level hs and / or a negative time gradient of the foam level (dhs / dt) of a fluid / air mixture present in the detergent solution tub (1), wherein a small amount of water is added continuously or discontinuously, with the detergent solution pump (16) switched on continuously or discontinuously, when foam is detected by the sensor (15) during a spinning run-up of the drum (2), that is, a continuous or continuous increase in the rotational speed of the drum (2). The invention further relates to a drum washing machine suitable for performing said method.

Description

technical field [0001] The present invention relates to a method for eliminating suds in a drum-type washing machine and a drum-type washing machine suitable for carrying out the method. In particular, the invention relates to a method for eliminating foam in a detergent solution tub of a drum-type washing machine, and a drum-type washing machine suitable therefor, wherein the drum-type washing machine has a program controller, the program A controller is used to control a program sequence comprising a series of steps including adding water and rotating the drum. Background technique [0002] In a conventional drum type washing machine, after the main washing and rinsing processes have been performed, spin-drying rotation is performed at a high rotational speed. The detergent solution discharge pump will not deliver the foam / detergent solution mixture if there is a lot of suds or if there is a lot of suds generated during the spin spin. Therefore, if foam is detected durin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F39/06
CPCD06F2202/085D06F2204/086D06F39/06D06F2105/02
Inventor I·舒尔策T·哈塞
Owner BOSCH SIEMENS HAUSGERATE GMBH