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Device for determining a level of a liquid container of an appliance, particularly a household appliance, and level sensor and detector circuit therefor

A technology for detecting circuits and liquid containers, applied in the field of devices for obtaining the fullness of equipment, especially liquid containers of household appliances, fullness sensors and their detection circuits, which can solve the problems of high structural costs and ensure reliable operation Effect

Inactive Publication Date: 2008-12-24
BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For all the above-mentioned known liquid filling sensor devices, since their design is known, the respective structural requirements are often considered to be too high a cost.

Method used

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  • Device for determining a level of a liquid container of an appliance, particularly a household appliance, and level sensor and detector circuit therefor
  • Device for determining a level of a liquid container of an appliance, particularly a household appliance, and level sensor and detector circuit therefor

Examples

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Embodiment Construction

[0028] FIG. 1 shows a reduced front view of a device, in particular a domestic appliance HG, which operates with or treats liquids. The associated appliance or household appliance can be, for example, a washing machine, clothes dryer or dishwasher. In the illustrated case, the domestic appliance HG partially shown in FIG. 1 is, for example, a dishwasher.

[0029] The upper part of FIG. 1 shows a door T from the domestic appliance HG, through which the operating area contained in the domestic appliance HG is closed in a liquid-tight manner. This working area includes a washing drum in the case of a washing machine or clothes dryer and at least one crockery basket in the case of the dishwasher shown.

[0030] The domestic appliance HG partially shown in FIG. 1 has a region on the lower part of the door T covered by a trim part V, in which a rinsing tank SW is located, which is used to receive a rinsing liquid by means of which the domestic appliance HG is formed. The dishwasher ...

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PUM

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Abstract

The aim of the invention is to determine a level, especially a safety level (N1) of a liquid container (SW) of an appliance operating with or processing a liquid, particularly a household appliance (HG), by means of a detector circuit (Q1, PB) which is connected to a liquid level sensor array (S1) and emits a warning signal when the respective liquid reaches or exceeds a certain defined level (S1) in the liquid container (SW) accommodating the same.; Said aim is achieved by the fact that the liquid level sensor array (S1) comprises at least one liquid level sensor (S1) which is provided with an electrically conducting contact part (LE) that is disposed in an isolated manner and encompasses an area (FR) which is uncovered or exposed for contacting said liquid only at the height of the defined level (N1) while the contact part (LE) is connected to a signal input of the detector circuit (Q1, PB) whose reference potential input associated with the corresponding signal input is connected to the liquid.

Description

technical field [0001] The invention relates to a device for obtaining a defined fullness level, in particular a defined safe fullness level, of liquid containers for processing liquids or of devices for processing liquids, in particular household appliances, by means of a detection circuit connected to a liquid filling level sensor device, The detection circuit can output a warning signal via the relevant liquid in the liquid container containing the liquid when a certain fullness is reached or exceeded. [0002] The invention also relates to a liquid filling sensor for a device of the type described above and a detection circuit, which is connected to such a liquid filling sensor. Background technique [0003] In order to determine the fullness of a liquid container to be filled with liquid, fullness sensors operating according to different principles and devices comprising such sensors are known. For example, a fullness sensor (DE 196 43 753 C1) is known which comprises ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/24
CPCG01F23/243G01F23/00G01F23/24
Inventor C·杜谢B·科布尔
Owner BSH BOSCH & SIEMENS HAUSGERAETE GMBH