JPS63286188A - Clothing drying apparatus - 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] Industrial applications The present invention relates to a clothes drying device using microwaves.

Prior Art Conventional devices of this type prevent the concentration of electric fields on high-loss objects such as metal buttons and zippers.
As shown in FIG. 3, a box 1, a microwave oscillator 2,
It is composed of a heater 3, a power supply/control line 4 on page 2, etc., and when the end of drying is near, heating by micro-value electric power is stopped and the heater 3
Clothes, etc., were heated and dried using a chisel.

(For example, Japanese Utility Model Publication No. 55-34948) Problems to be Solved by the Invention However, with the above configuration, there is a problem in that it is difficult to switch from the microwave to the heater at the end of drying. Ta. Additionally, some metals included in clothing become extremely hot in a short period of time when drying using microwaves begins. In this case, there was also the disadvantage that the fabric around the metal was damaged.

The present invention solves such conventional problems. □ The purpose of the present invention is to detect metals that become hot during microwave drying of clothes and prevent damage to the layers of clothes.

Means for Solving the Problems In order to solve the above-mentioned problems, the clothes drying device of the present invention includes a microwave generator for drying clothes, a heat sensor, a temperature sensor for clothes, and a clothes dryer for drying clothes. The device is equipped with a control device that detects when a temperature sensor detects the temperature and switches from the microwave to the heater.

Effect of the present invention With the above-described configuration, when metals attached to clothes are heated to an abnormally high temperature while drying clothes using microwaves, the temperature detection sensor detects this and stops the operation of the microwave. By switching to operation using a heater, damage to clothing can be prevented.

EXAMPLE Hereinafter, an example of the present invention will be described based on the accompanying drawings.

In FIG. 1, reference numeral 5 denotes a box of a clothes drying device, and its lower part includes a blower 6 and a heater 7, as well as a magnetron 8 as a microwave generator, a waveguide 9, a control device 10, and the like. Reference numeral 11 denotes a rotating drum made of plastic in which clothing is stored, and is driven by a motor 13 via a shaft 12. 14 is an air suction port, 15 is a lower opening plate, 16 is an upper opening plate, and 17 is a door for entering and exiting clothes.

In the above configuration, damp clothing placed in the rotating drum 11 is normally irradiated with microwaves by the magnetron 8 through the waveguide 9 while the rotating drum 11 is being rotated. The water vapor generated from the heated clothing is
The air sucked in from the air suction port 14 by the blower 6 and blown out from the lower opening plate 15 causes the upper opening plate 1 to
6 to the outside of the box body 5. During microwave irradiation during the drying process as described above, if the electric field concentrates on metal buttons or zippers on clothing and the temperature reaches a high temperature, use the infrared temperature detection sensor shown in Figure 2. 18 detects this fact. In FIG. 2, temperature detection sensor 18 detects an abnormally high temperature that occurs during drying, and transmits the signal to actuate relay 20 via transistor 19, which opens contact 21 to stop the operation of magnetron 8. At the same time, the contact 22 is closed and the heater 7 starts operating. Thereafter, 5 pages of drying are performed using only the heater, which prevents abnormal heating of metals in the clothes. Note that 23 is a resistor volume for adjusting the sensitivity of the temperature detection sensor 18, 24 is a DC power supply, and 25 is a commercial power supply.

Effects of the Invention As described above, the clothes drying apparatus of the present invention provides the following effects.

The clothes are equipped with a temperature sensor that detects abnormally high temperatures such as metal objects attached to the clothes being dried. If abnormally high temperatures occur, the magnetron stops operating and switches to drying using the heater, preventing damage to the clothes. It has the effect of preventing

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a clothes drying device according to an embodiment of the present invention, FIG. 2 is a control circuit diagram of a control device used in the same clothes drying device, and FIG. 3 is a sectional view of a conventional clothes drying device. 7... Heater, 8... Magnetron, 11... Rotating drum, 18... Temperature detection sensor. Name of agent: Patent attorney Toshio Nakao 7- Heater δ-Magnetron/I-=One rotation Y゛ram

Claims (1)

[Claims] a rotating drum that accommodates an object to be dried; a microwave generator and a heater that irradiates microwaves to dry the object to be dried in the rotating drum; a temperature sensor that detects the temperature of the object to be dried; A clothes drying device comprising a control device that controls the operation of the microwave generator and the heater based on the output of a temperature sensor.