JPS602295A - Clothing dryer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a general household dryer with dryness detection, and the delay time after detecting a predetermined drying state is
A predetermined drying state is controlled by setting a delay time from the start of drying according to a preset function according to the time under consideration.

Structure of the conventional example and its problems As a dryer equipped with conventional dryness detection, c. After reaching a certain dry state, the degree of increase in the circulating temperature of hot air is detected by electrodes and a predetermined delay time is set; There is a method in which the hot air operation is stopped after this predetermined time delay.

This conventional method requires electrode plates, temperature sensitive elements, circuits to control them, etc., and is expensive in terms of cost. Since the above-mentioned method is generally compatible only with dehumidifying dryers that can be called no-duct type, it is desirable to develop a method that can be used in both no-duct and duct-type dryers. Stay in.

Purpose of the Invention The present invention solves the above-mentioned conventional problems, and provides a duct type dryer by making it possible to determine the delay time after dryness detection using the dryness detection time detected by contact with the object to be dried. It was also designed to be used in a variety of situations.

Structure of the Invention The present invention provides a dryer capable of detecting dryness, in which a predetermined delay time is set by detecting the time from the start of drying until the reed reaches a predetermined dry state by contact with the object to be dried. The hot air operation is stopped after this delay time after reaching a predetermined dry state.

DESCRIPTION OF THE EMBODIMENTS In FIG. 1, which is a block diagram showing the configuration of an embodiment of the present invention, 1 is means for detecting a predetermined degree of dryness of clothes in the drying drum, 2 is a control means, and the means 1 is used to control the drying drum. When the predetermined degree of dryness of the clothes inside is detected, the information is input to the control means 2 at the same time.

The control means 2 controls the motor drive means 4 and the heater drive means 6 by setting a delay time by a function switching means 3 and a built-in function.

All power is turned off after the delay time has elapsed.

In Fig. 2, 6 is a rotating drum forming a drying chamber;
It is rotatably supported within the outer box T, and the rotation causes the dried material 8 inside to rotate and fall. Reference numeral 9 denotes a motor provided inside the outer box 7, which rotates the rotary drum 6 via a bell 10 and simultaneously rotates a dehumidifying fan 13 inside a fan case 12 via a belt 11.

When the fan 13 is rotated, the air inside the rotating drum θ flows through the filter cover 14, the filter A16, and the like as shown by the arrows. Pass through filter B16 and fan case 12
The hot air is sent through the air passage 17 into the heater cover 18, turned into hot air by the heater 20 mounted inside the drum front plate 19, and blown into the drum θ through the air vents 19'.

The hot air heats the material to be dried 8 in the rotating drum θ, and the hot air that has removed moisture repeats the above-mentioned ventilation cycle. During this hot air circulation cycle, the hot air containing a lot of moisture contacts the inner wall of the fan 13 on the drum 6 side, and at the same time, the outside air also touches the wall on the outside air side of the fan 13, and is blown away by the rotation of the fan 13 due to the temperature difference at that time. n. Water droplets are drained out of the machine through a drain hole 21 provided in the fan case 12.

By repeating the above cycle, moisture is removed from the material 8 to be dried in the drum 6 and the material 8 to be dried is dried.

Reference numeral 22 denotes means for detecting the degree of dryness of the object 8 by contacting it; for example, an electrode for detecting the electrical resistance of the object 8 by bringing an electrode plate into contact with the object 8; In the figure, it is fixed in front of the heater 2°, that is, on the side of the drum front plate 19 facing inside the rotating drum 6.

Therefore, the object to be dried 8 in the rotary drum 6 is dried by hot air drying, and a predetermined drying rate is detected by the electrode 22. At the same time, a function (X
) to determine the delay time (1) and turn off the power after this time elapses.As an example, in Figure 3, if (1) is 90 minutes and the function (X) is 0.5, then The delay time (txx) will be 45 minutes (=90X0.6), and the drying time (T) will be t+(tXx), T=90 minutes+(9
0x0.5) = 135 minutes.

As described above, the present invention detects the drying state by detecting the drying state using electrodes. It is possible to accurately detect the state and is also advantageous in terms of cost.

Moreover, it can be easily used in conventional duct types.

[Brief explanation of the drawing]

FIG. 1 is a control block diagram of a clothes dryer according to an embodiment of the present invention, FIG. 2 is a side sectional view of the clothes dryer, and FIG. 3 is a diagram showing the relationship between drying time and drying rate. DESCRIPTION OF SYMBOLS 1... Dryness detection means, 2... Regulating means, 8... Material to be dried, 13... Fan, 20... ··heater. 22... Electrode plate. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Claims] A means for detecting the drying level by contacting the object to be dried, a means for setting a delay time according to the time taken to reach this drying level, and a means for controlling the hot air supply device after this delay time.
A clothes dryer comprising means for drying clothes.