JPS61179193A - Iron 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 [Field of Industrial Application] The present invention relates to an ironing device that uses heat to remove wrinkles or create creases in clothing.

[Conventional technology]

Conventionally, this type of ironing device uses a commercial power source to heat a heat-generating heater built into the iron body, and its temperature is controlled by an internal vital heater that turns on and off at a predetermined temperature.
It was by switch. The main body of the iron has an AC cord connected to a commercial power source, and the vital switch is set to a predetermined temperature depending on the type of clothing, etc., and the iron is heated using the commercial power source.

The temperature control accuracy is low because the control temperature is low.
Large temperature ripple. Furthermore, since the bimetal switch is a mechanical contact and the surrounding temperature is high, there is a limit to the reliability of the contact switch. In addition, in order to supply power to the heat generating heater, the iron body has an A
Since the AC cord is attached and the plug of this AC cord is inserted into a power outlet, the AC cord may get twisted while being used.
The iron may tangle, making ironing a hassle, and if the iron is used frequently, the AC cord may break near the iron itself, causing accidents due to short circuits, or sometimes getting hands or feet caught in the AC cord. The disadvantage is that it can cause unexpected injuries.

[Means for solving problems]

The ironing device according to the present invention has an ironing board with a built-in electromagnetic induction heating function including a heating coil, an inverter circuit, a control circuit, etc., and a magnetic conductor on the back side. and an iron body configured such that the magnetic conductor portion generates heat.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the ironing board portion of the present invention. 1 is an AC power supply, and 2 is an inverter circuit for supplying high frequency current (23 to 50 KHz) to the heating coil 3. Reference numeral 4 denotes a control circuit incorporating a microprocessor for controlling the inverter circuit 2 based on signal conditions from a setting input circuit 5 for setting temperature or time (timer) and sensor signals from the heating coil 3. Further, 6 is a display circuit for displaying the set temperature, time, other control status, setting conditions, etc., and these are all attached to the ironing board 7. When an iron 9 whose back surface is made of iron-based ferromagnetic material 8 is placed on the ironing board 7 (heating coil) as shown in FIG. The eddy current 3-3 flowing as an induced current in the ferromagnetic material 8 due to the generated magnetic lines 3-2 is consumed by the conductor resistance of the ferromagnetic material 8, causing the eddy current 3-3 to generate heat. Further, 10 is a part of the ironing board 7, and is a plate made of ceramic or the like.

In this way, the iron body 9 is! Because it is heated by magnetic induction, the set temperature can be controlled with high precision and there is little temperature ripple. Since the iron main body 9 does not require a cord, there is no possibility that the cord will get in the way of work or cause accidents such as disconnection or short circuits.

〔Effect of the invention〕

As explained above, the present invention applies electromagnetic induction heating, which uses a heater to generate heat in the iron body, which is different from the so-called electric heater, so heat exchange efficiency is high, and the iron body is connected to an AC cord for power supply. Since there is no need to attach the cord, there is a risk of reduced work efficiency due to cord screws or tangles during ironing work, increased frequency of use, and cord failure. I? This has the effect of completely eliminating accidents such as short circuits or power supply accidents, as well as accidents such as getting a limb caught in a cord. Furthermore, temperature control also has the advantage of being able to control over a wide range and with high precision compared to the conventional bimetal system, and is extremely effective.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the functions built into the ironing board used in the present invention, and FIG. 2 is a diagram for explaining the iron body and its heat generation principle. 1...--AC power supply, 2...Inverter circuit, 3...Heating coil section with built-in sensor,
4... Control circuit section with built-in microprocessor, 5... Setting input circuit, 6... Display circuit, 7... Ironing board, 8... - Ferromagnetic material, 9... Iron body, 10... Plate, 3-1... High frequency current flowing through heating coil, 3-2... ...Magnetic feeder wire, 3-3...
Eddy current.

Claims (1)

[Claims] An ironing device comprising: an iron body having a magnetic conductor; and an ironing board on which the iron body is placed to heat the magnetic conductor by electromagnetic induction heating.