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Method for determining clothes weight in laundry machine and laundry machine implementing the same method

A technology of clothes weight and washing machine, applied in the field of washing machines, can solve the problems of increasing cost, reducing measurement accuracy, increasing workload, etc., and achieves the effects of easy assembly, simple structure and accurate results

Active Publication Date: 2008-08-27
BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the setting of so many weight sensing devices 25 not only increases the cost but also increases the workload required for assembly.
On the other hand, if only a single above-mentioned weight sensing device 25 is set in order to save cost, the accuracy of measurement will be greatly reduced

Method used

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  • Method for determining clothes weight in laundry machine and laundry machine implementing the same method
  • Method for determining clothes weight in laundry machine and laundry machine implementing the same method
  • Method for determining clothes weight in laundry machine and laundry machine implementing the same method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Use a water level sensing device (otherwise known as a water meter).

[0064] A water quantity sensing device is provided on the water inlet channel of the washing machine and a fixed water level L that can completely soak the clothes is provided.

[0065] In the central processing unit of the washing machine control device, an identification program for identifying the water absorption rate of clothes of different materials and an identification program for identifying the relationship of "water injection amount-clothes weight" are set.

[0066] The water absorption rate A is the amount of water absorbed by the unit weight of clothes of different materials determined by experiments when they are completely wet. In the above recognition procedure for recognizing the water absorption rate of the clothes, a selection switch (address) for manipulating different materials of the clothes is provided on the operation panel of the washing machine. If the user makes a definite...

Embodiment 2

[0084] A pressure sensing device is arranged on the drain channel of the washing machine. Furthermore, a water level L1 is provided which activates the pressure sensor and is below the lowest position of the drum. At the above water level L1, the laundry in the drum will not be wetted by the water in the washing machine. At this time, the amount of water injected is W. In addition, a wetting water level L2 is set, wherein the clothes can be completely wetted by water. In this embodiment, the wetting water level L2 is measured by a pressure sensing device (not shown in FIG. 4 ) arranged on the water inlet channel.

[0085] In the central processing unit of the washing machine control device, an identification program for identifying the water absorption rate of different clothes, a corresponding identification program for identifying the relationship of "water injection amount-clothes weight" and a calculation program for water injection amount = time * water flow rate are se...

Embodiment 3

[0098] A water volume sensing device is provided on the water inlet channel of the washing machine and a fixed wet water level L which can completely wet the clothes is provided. In an embodiment, the wetting water level L is measured by a pressure sensing device (not shown in FIG. 3 ) arranged on the water inlet channel.

[0099] An identification program for identifying the water absorption rate of clothing of different materials and a laundry weight calculation program are set in the central processing unit of the washing machine control device.

[0100] The water absorption rate A is the amount of water absorbed by cloth of different materials per unit weight determined through experiments when it is completely wet. In the identification program for identifying the water absorption rate of the clothes, a selection switch (address) for operating different materials of the clothes is set on the operation panel of the washing machine. When the user selects the selection swit...

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Abstract

The invention concerns a method for determining the weight (Q) of clothes introduced in the drum (3) of a washing machine, correlated with the amount of filling water. The method is characterized in that an amount of filling water (W) is introduced and determined until a level of water (L) is reached at which the clothes can be entirely soaked in water. Therefor, the type of clothes material selected by means of a button for selecting clothes materials located on a control panel is determined preferably by a device (M2) for identifying the water absorption rate (A), the water absorption rate (A) being selected based on the type of clothes material selected.; The weight (Q) of clothes is determined by means of a device controlling (9) the washing machine by comparing the amount of water introduced (W) and the amounts of filling water of an allocating unit (M3) whereby a predetermined correlation based on the water absorption rate (A) can be determined between the amounts of filling water and the amounts of load, or calculated on the basis of the water absorption rate (A) and an amount of water absorbed (W_ab) by the clothes. The present invention also concerns other embodiments for determining the amount of filling water (W) and for determining the weight (Q). It further concerns a washing machine for implementing said method.

Description

technical field [0001] The invention relates to a washing machine, in particular to a method for measuring the weight of clothes by using water inflow and a washing machine using the method. Background technique [0002] In a fully automatic washing machine equipped with a computer control device, in order to save water on the one hand and to achieve a desired washing effect on the other hand, the washing machine is usually equipped with a device capable of measuring the weight of the laundry to be washed. Based on the measured laundry weight, the computer controls the water consumption during the washing process on the one hand and the washing time on the other hand. The water consumption of the washing process includes the water consumption of each procedure of soaking, washing and rinsing. In the existing fully automatic washing machine, the measurement of the weight of the clothes is to determine the weight of the clothes (measurement of the number of pulses) by using t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F39/00D06F34/18
CPCD06F34/18D06F2105/00D06F2105/58D06F2103/18D06F2103/04D06F2101/06
Inventor 万庥丁旭东宋涛
Owner BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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