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Filter screen service life detecting method and device

A detection method and filter technology, applied in the field of air purification, can solve the problem of inability to accurately determine the service life of the filter, and achieve the effect of accurate life

Inactive Publication Date: 2016-08-10
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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Problems solved by technology

[0004] The embodiment of the present invention provides a filter life detection method and device, which solves the problem that the existing purification device cannot accurately determine the service life of the filter

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  • Filter screen service life detecting method and device
  • Filter screen service life detecting method and device

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] The execution body of the filter life detection method provided in the embodiment of the present invention may be a filter life detection device, or an air purification device used to perform the above filter life detection. The filter life detection device may be set independently or in a A functional module in the air purification device. Wherein, the air purification device may be an air purifier, an air conditioner, a water purifier, a range hood, a...

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Abstract

The embodiment of the invention provides a filter screen service life detecting method and device, and relates to the field of air purification. The problem that the service life of a filter screen can not be determined precisely in an existing air purification device is solved. The method comprises the steps of acquiring the current rotating speed and the current PWM pulse signal duty ratio of a motor, acquiring the filter screen saturation grade matched with the current PWM pulse signal duty ratio and the current rotating speed of the motor from a filter screen saturation grade table according to the current PWM pulse signal duty ratio and the current rotating speed of the motor, and determining the service life of the filter screen according to the filter screen saturation grade matched with the current PWM pulse signal duty ratio and the current rotating speed of the motor, wherein the filter screen saturation grade table is a mapping relation table among the filter screen saturation grade, the interval range of the rotating speed of the motor and the interval range of the PWM pulse signal duty ratio of the motor. The method and device are used for detecting the service life of the filter screen.

Description

technical field [0001] The invention relates to the field of air purification, in particular to a filter screen life detection method and device. Background technique [0002] With the enhancement of people's environmental awareness and the improvement of living standards, they are increasingly aware of the importance of clean air to personal health. At present, the internationally recognized method to improve indoor air quality is to purify indoor air through air purifiers, and when the air purifier is in normal operation, its key functional parts filter (such as HEPA filter, activated carbon filter and other functional filters) net) will attract dust. When the dust adsorbed on the filter reaches saturation, the air purification effect will decrease, and more seriously, the purification function will be lost. Therefore, when the dust adsorbed on the filter reaches saturation, the user should be reminded to replace the filter in time. [0003] The current conventional pra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/30F24F2110/00F24F2110/30
Inventor 盖学刚杨立峰赵希枫
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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