JPH0370598A - Ironing method and ironing stand used therefor - Google Patents

Abstract

PURPOSE:To heat an iron body by the supply of energy under electromagnetic induction from an ironing stand even if the body has not an electric power cord, by a method wherein an alternating magnetic field is generated by the ironing stand, and by the alternating magnetic field, the over-current owing to the electromagnetic induction is generated on the iron body, and the iron body is heated by the over-current loss owing to the over-current. CONSTITUTION:When a cloth 7 is ironed with an ironing device, an electric power switch in an induction coil-oparating circuit 3 is turned on after an iron body 4 is placed on a preheating part 8, and thus a high-frequency current is outputted from an induction coil 2. At this time, since a magnetic substance is not at an ironing part 11, heat is not generated. On the other hand, however, the iron body 4 placed on the preheating part 8 is heated by heating under electromagnetic induction. After a temperature-indicating lamp 12 on the iron body 4 is tuned on, the iron body 4 is depressed on the cloth 7 and ironing is done. At this time, since the iron body 4 is always heated by the induction coil 2, the ironing can be done at will.

Description

[Detailed description of the invention] [　Industrial application field　]

The present invention relates to an ironing device.

[Conventional technology]

In conventional ironing devices, the heating element is held in the hand and pressed against the fabric to be ironed. In this case, as a method of heating the heating element, there is a method of holding an iron body containing an electric heating element such as a nichrome wire in the hand and applying it to a cloth or the like. The electric heating element of the iron body generates heat by being supplied with power from a household outlet or the like via a power cord.

[Problem to be solved by the invention]

However, as mentioned above, if the power cord is hanging from the iron body held in the user's hand, there is a problem in that it wraps around the iron body and gets in the way. Therefore, cordless irons have recently been developed that have a built-in battery in the iron body, charge the battery before ironing, and then use the built-in battery to power the electric heating element when ironing. It became commercially available. However, the capacity of the battery is limited, and in practical use, it must be frequently charged, resulting in interruptions in work. Furthermore, if the iron body is left on the floor or the like with the power switch turned on, there is a danger that touching it will cause burns or a fire.

[Means to solve the problem]

In order to solve the above problems, in the ironing method according to the present invention, an alternating magnetic field is generated by an ironing board, an eddy current due to electromagnetic induction is generated in the iron body by the alternating magnetic field, and eddy current loss due to the eddy current is reduced. The iron body is heated, and the hot iron body heats the object. The ironing board according to the present invention is equipped with a magnetic field generating means for generating an alternating magnetic field.

[Operation] In the present invention, when an iron body including a magnetic material such as metal is placed in a magnetic field generated by an alternating magnetic field generating means provided in an ironing board, an eddy current is generated in the magnetic material due to electromagnetic induction. When this eddy current flows through the magnetic material, which is a conductor, heat is generated due to eddy current loss, and the iron body generates heat. In other words, even if there is no power cord attached to the iron itself, energy is supplied to it through electromagnetic induction and it generates heat.

【 Example 】

Preferred embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a sectional view of the embodiment. In the drawings, 1 is an ironing board, 2 is an induction coil, and 3 is the induction coil 2.
An induction coil drive circuit that supplies an alternating current to generate an alternating magnetic field, 4 is the iron body, 5 is a heat generating part made of a magnetic material, 6 is a handle made of a heat insulating material, and 7 is a cloth such as a handkerchief to be ironed. It is. The induction coil drive circuit 3 includes a high frequency output circuit that outputs an alternating current of approximately IMHz or less to the induction coil 2;
It is equipped with a safety circuit that uses temperature-based safety switches and current-based safety switches to prevent burns and fires caused by abnormal temperature rises, and electrical accidents caused by short circuits caused by abnormal currents. The power cord is connected only to the ironing board 1, and is not connected to the iron main body 4. Reference numeral 8 denotes a preheating section, which prevents the iron main body 4 from getting cold when preheating at the start of work or between works. Reference numeral 9 denotes a cooling section, which includes a heat conductor for quickly cooling the iron body after the work is finished. The induction coil 2 is provided in the working part 11 where normal ironing work is performed and in the preheating part 8. When ironing the cloth 7 with the ironing device configured as described above, the iron main body 4 is placed on the preheating section 8, the power switch of the induction coil drive circuit 3 is turned on, and the induction coil 2 is turned on.
Outputs high frequency current to. At this time, since there is no magnetic material in the working part 11, no heat is generated, but the iron main body 4 in the preheating part 8 generates heat due to electromagnetic induction heating. After the temperature indicator light 12 of the iron main body 4 lights up, ironing is performed by pressing the cloth 7 from above. At this time, since the iron main body 4 is constantly heated by the induction coil 2, ironing can be performed freely. When the work is temporarily interrupted to turn over or replace the cloth 7, the iron main body 4 is placed in the preheating section 8 and preheated. When finishing the work or suspending the work for a long time, the iron main body 4 is placed in the cooling section 9 to radiate heat. In this way, according to this ironing device, since the iron main body 4, which is held in the hand to iron the iron, does not have a power cord, it is possible to obtain the effect that the iron body 4 does not interfere with the work. Furthermore, even if the iron body 4 is accidentally left on the floor, etc., it will not generate heat because there is no alternating magnetic field, resulting in an extremely high level of safety as no accidents such as burns or fire will occur. This effect can also be obtained. In addition, this iron can be used by cutting off the power cord of a conventional metal iron that has broken down and stopped producing heat, which is an economical way to reuse resources. You can also get Furthermore, a steam generating section is provided in the heat generating section 5 of the iron main body 4, and steam can also be generated using the heat generated by electromagnetic induction heating.

【 effect 】

According to the ironing method according to the present invention, even if the iron itself does not have a power cord, energy is supplied from the ironing board through electromagnetic induction and it generates heat.
The power cord does not interfere with the ironing action. Therefore, the effect of being able to work efficiently can be obtained. Furthermore, even if the iron body is left on the floor or the like, there is no alternating magnetic field, so it will not generate heat. Therefore, it is possible to provide an extremely safe ironing device that prevents accidents such as burns and fires caused by irons left on the floor. In addition, since the iron body used in this ironing board can be made of magnetic material, it can also be used with conventional heating wire type iron bodies that have malfunctioned and no longer generate heat, resulting in extremely economical and resource-saving effects. It is. According to the ironing board according to the present invention, the above effects can be obtained by using it in the above ironing method.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the invention. 1... Ironing board, 2... Induction coil (alternating magnetic field generating means), 3... Induction coil drive circuit, 4... Iron main body, 5... Heat generating part made of magnetic material.

Claims (2)

[Claims] (1) In a method of ironing an object such as a cloth placed on an ironing board by heating and pressing the object with a high-temperature iron body, an alternating magnetic field is generated by the ironing board, and this alternating magnetic field is applied to the iron body. An ironing method characterized in that an eddy current is generated by electromagnetic induction, the iron body is heated by the eddy current loss caused by the eddy current, and the object is heated by the hot iron body. (2) An ironing board characterized by being equipped with a magnetic field generating means that generates an alternating magnetic field.