A method for prompting the filter efficiency state of a filter screen and an air purifier
An air purifier and filtration efficiency technology, which is applied in the field of air purification, can solve the problems of air purifier filtration efficiency reduction, air secondary pollution, and use time not being reached, and achieve real-time and effective purification efficiency.
Active Publication Date: 2019-05-07
GD MIDEA ENVIRONMENT APPLIANCES MFG +1
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Problems solved by technology
[0002] An air purifier is a device for filtering air. The filtered pollutants will adhere to the filter module of the air purifier. As the air purifier is used longer, the filtration efficiency of the air purifier will decrease. Therefore, the air The filter module of the purifier needs to be cleaned or replaced regularly
[0003] In the prior art, the cleaning or replacement reminder of the filter module is generally reminded by the accumulated use time. When the accumulated use time reaches the set value, the user is reminded to clean or replace the filter module. However, the accumulated use time is used to remind The way of cleaning or replacing the filter module cannot truly reflect whether the filter module needs to be cleaned or replaced. For example, an air purifier has a relatively good environment and relatively low pollutants. In this case, the air purifier is used After the time reaches the preset time, a clear or replacement prompt message will be sent out. In fact, there are very few pollutants attached to the filter module, and the purification efficiency of the filter module has not really dropped to the extent that it needs to be cleaned or replaced; if the air is purified The environment in which the filter is used is harsh, and the filter module has already attached a large amount of pollutants
And the use time has not reached the preset value. In this case, continuing to use the air purifier will not only have no effect of purifying the air, but will cause secondary pollution of the air
Method used
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[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0038] figure 1 It is a schematic flow chart of the method for prompting the filter efficiency status of the filter screen according to the embodiment of the present invention, such as figure 1 As shown, the flow of the method for prompting the filter efficiency state of the filter according to the embodiment of the present invention includes the following steps:
[0039] Step 101: Detect the pollutant concentration at the air inlet end of the filter screen and the pollutant concentration at the air outlet end of the filter screen;
[0040] Among them, with the filter screen as the boundary, the windward direction is the air inlet end, and the wind outlet direction is the air outlet end; at least one pollutant concentration detection module is respectively set at the air inlet end and the air outlet end, wherein the number of polluta...
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The invention discloses a filter screen filtering efficiency state prompting method, which comprises the steps of detecting pollutant concentration at the air inlet end of a filter screen and pollutant concentration at the air outlet end of the filter screen; calculating a purification efficiency value of the filter screen according to the pollutant concentration at the air inlet end and the pollutant concentration at the air outlet end; determining a comparison result by comparing the purification efficiency value and a preset threshold value; outputting filter screen filtering state prompting information according to the comparison result. The invention also discloses an air purifier.
Description
technical field [0001] The invention relates to air purification technology, in particular to a method for prompting the filtration efficiency state of a filter screen and an air purifier. Background technique [0002] An air purifier is a device for filtering air. The filtered pollutants will adhere to the filter module of the air purifier. As the air purifier is used longer, the filtration efficiency of the air purifier will decrease. Therefore, the air The filter module of the purifier needs to be cleaned or replaced regularly. [0003] In the prior art, the cleaning or replacement reminder of the filter module is generally reminded by the accumulated use time. When the accumulated use time reaches the set value, the user is reminded to clean or replace the filter module. However, the accumulated use time is used to remind The way of cleaning or replacing the filter module cannot truly reflect whether the filter module needs to be cleaned or replaced. For example, an air...
Claims
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IPC IPC(8): B01D46/00B01D46/42
CPCB01D46/0086B01D46/42B01D2279/50
Inventor 王金峰马占银
Owner GD MIDEA ENVIRONMENT APPLIANCES MFG