SU1575017A1 - Device for controlling overrange air cleaner - Google Patents

Abstract

The invention relates to air purification devices and is intended to control above-floor air purifiers. Allows you to reduce energy costs. Contains: a fan motor 5, a bipolar switch 7, a DC source 8, a pulse shaper 9, a bridge measuring circuit consisting of resistors 10 and two infrared sensors 11 and 12, amplifier 13, threshold elements 14 and 15, switch 16 , trigger 17, element OR 18, timer 19, keys 20 and 21, capacitors 22 and 23. 1 Il.

Description

The invention relates to air purification devices and is intended to control above-floor air purifiers.

The aim of the invention is to reduce energy costs.

The drawing shows the proposed device.

The control unit comprises a plate 1, a housing 2 in which an aerosol filter 3 is installed, a fan 4 with an electric motor 5, a gas cleaning filter 6, a bipolar switch 7 of an alternating current source, a DC source 8, a driver 9 pulses, a bridge measuring circuit from resistors 10 and two infrared radiation sensors 11 and 12, one of which is installed in the working area above the plate, and the other outside the working area of plate 1, amplifier 13, threshold elements 14 and 15, switch 16, trigger 17, element OR 18, timer 19, pack Aulus emye keys 20 and 21 incorporating normal and high speed motor 5, respectively, comprising an electric motor 5 through the capacitors 22 and 23.

The control unit of the above-surface air cleaners operates as follows.

The main operational mode of operation. With it, in order to prevent overheating and better air purification, a preliminary, before switching on the plate 1, switching on and delayed, after turning off the plate 1, switching off the air cleaner is provided. In the initial state, the plate 1 is turned off, the switch 7 is on, at the inputs of the trigger 17, at its output, at the inputs to the output of the circuit OR 18 is the key 20 and the electric motor 5 is turned off. After turning on the switch 16 at the input of the trigger 17 appears "1, the trigger 17 is thrown, at the output of the circuit OR 18 appears" 1, the key 20 turns on and turns on the electric motor 5. The fan 4 starts to work. The plate 1 is turned on, the sensor 11 changes its resistance under the action of infrared radiation, the bridge mismatches and a signal is received at the input of the amplifier 13, the amplitude of which is proportional to the heating of the working area. A threshold device 14 triggers and at the input of the OR circuit, 18 appears, a duplicate of maintaining the key 20 in the on state. After a set time (on the order of a few minutes), timer 19 is triggered, and 1 appears at the output and at the input of trigger 17, transferring it to the initial state. However, the key 20 remains enabled due to the presence of "1 input circuit OR 18. This state is maintained throughout the whole time of the plate 1 operation. After its shutdown, the heated elements cool down, the infrared radiation flux decreases, and the error signal of the bridge measurement circuit becomes insufficient to trigger the threshold element 14. At the input of the circuit OR 18, "O, key 20 and motor 5 are turned off. The air cleaner returns to its original state and is fully prepared for re-activation.

Turn on the plate 1 without first turning on the air cleaner. This mode is redundant.

and provides automatic switching on the air cleaner after switching on the plate 1, if its preliminary inclusion for any reason has not been made. After turning on the plate 1 sensor signal 11

includes a key 20 and an electric motor 5. Turning on the air cleaner without switching on the plate 1 for any reason then. In this case, unnecessary operation of the air cleaner is automatically prevented. After starting the air cleaner

0 using the switch 16 after a set time (on the order of a few minutes), timer 19 is triggered, "1 is output to the trigger 17, and" O appears at the output of the OR 18 circuit, the switch 20 is turned off, the electric motor is turned off state and fully prepared for the next inclusion.

With increased heating of the working area, increasing the heating of the plate 1 increases 0 s the error signal of the bridge measuring circuit, after amplification by the amplifier 13, it becomes sufficient to trigger not only the threshold element 14, but also the threshold element 15. At its output, "1, key 21 is opened by connecting parallel to the capacitor 22 a capacitor 23. The voltage on the electric motor 5 and the speed of its rotation increase. Therefore, in this mode, automatic activation of the increased

 rotational speed of the electric motor and an increase in the intensity of ventilation with increasing heating of the plate. If, subsequently, the heating of the working area is reduced to normal, the threshold device 15 is turned off, the key 21 is closed, and the electric 5 engine 5 automatically switches to a normal rotation speed.

Thus, this device can operate in two modes of ventilation, due to which it saves electric energy while achieving high-quality air purification.

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Claims (1)

Invention Formula A control unit using a flat air cleaner that contains an electric motor, an alternating current source, two capacitors and a switch, one capacitor plate connected to one motor terminal, the other terminal of which is connected to an alternating motor source current, characterized in that, in order to reduce power consumption, a pulse shaper, a dc current source, a trigger, a timer, an amplifier, two threshold elements, an OR element, two switches and a bridge measuring circuit, whose two arms are made in the form of resistors and the other two are infrared sensors, and the output of a direct current source is connected to the input of a pulse shaper, one output of which through a switch is connected to one trigger input, the other input of which is connected to a timer output, one in one of which is connected to the trigger output, which is connected to one of the inputs of the OR element, another input of the OR element is connected to the output of the first threshold element, one of the inputs of which is connected to one amplifier output, the other output is connected to the input of the second threshold element, another timer input connected to another output of the pulse former, the remaining outputs of which are connected to one diagonal of the bridge measurement circuit, the other diagonal of which is connected to the inputs of the amplifier, the output of the OR element is connected to ravl yuschemu input of the first switch, a power input coupled to the other plate of one of the capacitors and with a power input of the second switch, the other power input of which is connected to the other plate of another capacitor, the control of the second switch input coupled to an output of the second threshold element, the other power input the first switch is connected to the AC source, and the other output of the DC source is connected to the second inputs of the threshold elements and to the third inputs of the timer and amplifier.