Electric cleaner

Abstract

The present invention provides an electric dust collector capable of always keeping optimal attractive force for various kinds of dust, thereby improving the control precision and efficiency of the power supplied to the electric blower fan. The electric dust collector of the present invention comprises a first dust detecting device(35); a second dust detecting device(36); a first holding device(37)for giving holding time to each signal and outputting a first holding signal based on the first dust detecting signal detected by the first dust detecting device; a second holding device(38)for giving holding time to each signal and outputting a second holding signal based on the second dust detecting signal detected by the second dust detecting device; and a display control device(14)for controlling the power supplied to the electric blower fan based on the first holding signal and the second holding signal. Thus, the dust of different sizes can be detected according to various sizes of the dust respectively so as to improve the control precision of the power according to the size, the kinds and the quantity of dust.

Description

technical field [0001] The present invention relates to a general household or commercial electric vacuum cleaner, and more particularly, to the control of such an electric vacuum cleaner. Background technique [0002] Fig. 8 is a schematic diagram showing a schematic configuration of a conventional electric vacuum cleaner. [0003] In Fig. 8, 1 is an electric vacuum cleaner body, 2 is an electric blower for generating dust suction inside the body 1, and 3 is a hose on which the operation mode of the electric blower 2 can be selected, so that it can be used in different Operating units 4 and 5 that operate under the power supply are extension tubes, 8 is a suction head that is in contact with the surface to be vacuumed and sucks up dust, and 6 is a dust collection chamber for storing the sucked dust. The hose 3 and the dust collection chamber 6 are connected through the suction port 7 provided on the body 1, and the dust collection chamber 6, the hose 3, the extension pipe ...

AI Technical Summary

Problems solved by technology

In the case of very small dust particle size, that is, fine dust, X<<Y, the passing time is basically Y / Z, and the size of the dust has almost no effect on the difference in passing time, so it can be judged by the pulse width The size of the dust is limited to the dust having a particle diameter of or exceeding a certain size and having a pulse with a large difference in width compared with the pulse judged by the number of pulses, so the method described in the above-mentioned reference 1 is used to It is very difficult to judge the dust with relatively small particles and correct the number of pulses through the pulse width

[0013] As mentioned above, the characteristics of vacuum cleaners so far are only for dust of a certain size, and there is a problem that the optimal power supply power control of electric fans cannot be performed according to dust of various particle sizes including fine dust.

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