KR930013343A - Drying time control device of clothes dryer - Google Patents

Abstract

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Description

Drying time control device of clothes dryer

As this is a public information case, the full text was not included.

1 is a schematic cross-sectional view of a conventional clothes dryer.

2 is a block diagram of the drying time setting system of the clothes dryer.

3 is a graph of temperature change with drying time of FIG.

4 is a schematic cross-sectional view of the clothes dryer of the present invention.

5 is a block diagram of a clothes dryer control system of FIG.

6 is a detailed circuit diagram of the humidity sensing processor of FIGS.

7 is a graph showing the change of humidity according to the drying time of FIG.

8 is a characteristic graph of the demister according to the humidity of FIG.

9 is an output waveform diagram of the humidity sensing unit of FIG. 6, in which FIG. 9 (a) and 9 (b) are waveform diagrams when humidity is high, and FIG. 9 (c) and 9 (d) are humidity diagrams. The output waveform diagram when is low.

FIG. 10 is a signal flow diagram illustrating the operation of FIG.

* Explanation of symbols for main parts of the drawings

1: motor 2: heater

6: humidity detection unit 7: room temperature detection unit

13: micom 17: humidity detection unit

Claims (3)

Humidity sensing unit 6 for detecting the humidity change in the drum, Humidity sensing processing unit 17 for changing the voltage according to the humidity change detected by the humidity sensing unit 6 to output a pulse signal, and the humidity sensing Drying time control device of the clothes dryer comprising a microcomputer (13) for controlling the operation of the clothes dryer by judging the completion time of drying by the cycle of the pulse signal output from the processing unit (17). The humidity sensing unit 17 integrates the voltage sensed by the humidity sensing unit 6 into the resistors R3 and R4 and the capacitor C1, and integrates the integrated voltage into the resistors R1 ( A signal processor 17a for comparing the divided reference voltage divided by R2 to the comparator CP1 and outputting the resultant voltage through the resistor R5, and a zener diode (voltage) outputted from the signal processor 17a. A drying time control apparatus for a clothes dryer, comprising: a waveform shaping unit (17b) for shaping a waveform through a ZD1) (ZD2), a resistor (R6), and a diode (D1). The method of claim 1, wherein the microcomputer 13 sets the reference value of the humidity sensing unit 6 at the time of completion of drying according to the ambient temperature of the room temperature sensing unit 7 when a predetermined time t1 elapses after the clothing drying is performed. After that, by checking the internal humidity of the drum every predetermined time (t2), when the humidity reaches the drying end humidity, the drying time control device of the clothes dryer, characterized in that the drying is completed to complete the drying. ※ Note: The disclosure is based on the initial application.