Dust indicator for a vacuum cleaner

一种真空吸尘器、指示器的技术，应用在吸尘器、吸滤器、应用等方向，能够解决灰尘探测器结构复杂等问题，达到改进传感器功能的效果

Active Publication Date: 2013-03-20
AB ELECTROLUX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Known dust detectors are very complex due to the inclusion of many mechanically complex moving components

Method used

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  • Dust indicator for a vacuum cleaner
  • Dust indicator for a vacuum cleaner
  • Dust indicator for a vacuum cleaner

Examples

Experimental program
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Embodiment Construction

[0035] The exemplary embodiments of the present invention throughout the specification are based on optical detection of dust using optical signals. The examples described are for explanatory purposes only. The present invention can also be used to detect dust using electromagnetic signals of other wavelengths and visible light wavelengths. It can be considered that these uses fall within the scope of the present invention.

[0036] figure 1 A vacuum cleaner 100 is schematically shown, which includes a dustbin 101 for containing dust collected from a dust-laden airflow. The trash can 101 is detachably installed in the vacuum cleaner 100 and can be taken out and emptied. The trash bin 101 generally includes a substantially hollow one-piece part, and includes an inlet 103 for receiving dust, dirt and air from the dirt separation chamber 104, such as figure 2 Shown. Such as figure 1 It is schematically shown that the vacuum cleaner 100 further includes the following components, s...

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PUM

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Abstract

This invention relates to a dust indicator in a vacuum cleaner, which dust indicator (200) is arranged in a wall (102) at least partly defining a space of the vacuum cleaner that is set under negative pressure with respect to the outside of the wall during operation of the vacuum cleaner. The dust indicator comprises an air channel (211) having an air inlet (212) arranged at an outer side of the wall, and an air outlet (213) arranged at an inner side of the wall, such that an airflow is directed into the space during operation of the vacuum cleaner due to the negative pressure. The dust indicator further comprises a sensor (220) arranged for detecting dust by means of sending and / or receiving an electromagnetic signal which is transmitted through the space. The air channel is arranged such that the airflow prevents dust from sticking in an area of the path of the electromagnetic signal of the sensor. The sensor is arranged behind a transparent window (232) such that it is shielded from dust and debris within said space.

Description

Technical field [0001] The present invention generally relates to the field of vacuum cleaners. In particular, the present invention relates to a dust indicator for a vacuum cleaner, which uses airflow to keep the dust indicator free from dust and dirt. Background technique [0002] In recent years, the use of bagless vacuum cleaners, that is, vacuum cleaners that do not use disposable dust bags, has increased. Dust sucked into the dust-containing airflow of the vacuum cleaner is separated in the dust separation chamber and collected in a trash can that needs to be emptied frequently by users. As long as the dust level in the trash bin is below the critical level, the normal function of dust separation of the vacuum cleaner can be provided. However, a common problem of bagless vacuum cleaners is that users forget to empty the trash bin before reaching a critical level, which leads to unnecessary blockage of the filter and other components of the vacuum cleaner. The result of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47L9/19A47L9/28A47L9/16
CPCA47L9/1683A47L9/2815A47L9/2894A47L9/2857A47L9/19
Inventor S·约恩松F·舍贝里H·特罗贝里
Owner AB ELECTROLUX
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