JPH0280095A - Cordless iron device - Google Patents

Abstract

PURPOSE:To contrive the lightness of weight in a cordless iron part while enabling continuous work to be attained so as to improve work efficiency by providing a proximity sensor detecting the cordless iron part approaching to generate an on-off signal and a control part controlling an excitation current in a field generating coil by the on-off signal of the proximity sensor. CONSTITUTION:A control part 8, comprising a control circuit 5 and a switching element 6, on-off controls an excitation current in a field generating coil 2. When a cordless iron part 1 is brought into the predetermined range of an iron work bed, a generated magnetic field 11 is concentrated to a surface part starting induction heating by an eddy current 12 by a skin effect of a magnetic metal plate 1A, so that the waiting time from a proximity sensor 3 acting to ironing work by thermal pressure work enabled can be shortened. While heat generation in the surface part is spread by conduction to a total unit of the magnetic metal plate, increasing an accumulated amount of heat, so that the ironing work at a suitable temperature can be continuously performed with no sudden decrease of temperature in the magnetic metal plate 1A, and the lightness of weight can be attained of the cordless iron part because of even no necessity for increasing a thickness of the metal plate 1A.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an induction heating type cordless iron used for ironing work such as removing wrinkles from clothes and other fabric products in the cleaning industry or at home. Regarding equipment.

[Conventional technology]

Conventional cordless ironing equipment [is it an electric heater? I - Consists of a built-in cordless iron section and a preheating stand that has a power plug connected to the jack of this cordless iron section.After placing the cordless iron section on the preheating stand and preheating it to a predetermined temperature, the cordless iron section is turned off. A method of ironing using the heat stored in iron is known.

[Problem to be solved by the invention]

In the conventional device R, heat storage in the cordless iron section
Increasing the hi increases the weight, resulting in poor workability.Also, ironing work must be interrupted during the preheating period, and continuous work cannot be performed, resulting in poor work efficiency. In addition, during preheating, operation A' is interrupted, so it is sometimes easy to forget that preheating is in progress, and the balance wastes electricity, and the temperature changes during work are large, making it difficult to finish the finishing process. There is also the problem that unevenness tends to occur.

The purpose of this invention is to enable continuous work and improve work efficiency.
And to obtain a cordless ironing device in which the cordless ironing part has 41 parts.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a cordless ironing device using a heating method such as a sieve, which includes a magnetic field generating coil disposed along an anti-thermal pressing surface of an ironing workbench, and a magnetic flux generated by the ironing coil. A cordless iron part made of a magnetic metal plate arranged on the iron workbench according to No. 61 so as to be heated by induction, a proximity sensor that detects the proximity of this cordless iron part and issues an on/off signal, and this proximity sensor. and a control unit that controls the excitation IJ1i current of the magnetic field 5G raw coil by the output on/off No. 13 of the magnetic field 5G raw coil.

[Effect]

In the above means, the cordless iron part is formed of a magnetic metal plate and is heated by the magnetic field generated by the magnetic field 5G raw coil distributed along the back side of the ironing workbench, and at the same time, the magnetic field is heated in the vicinity of the magnetic field generating coil fill. The sensor is equipped with a proximity switch that magnetically senses the proximity of the cordless iron part made of a magnetic metal plate, and a control section that controls the current of the magnetic field generating coil based on the on/off signal of this proximity switch. With this structure, the eddy current caused by the heating of the cordless iron parts Fs and J4 flows concentratedly in the six layer parts due to the human skin effect, and the eddy current loss efficiently heats the cordless iron part, and the cordless iron part is located in the operating area of the proximity sensor. Since the cordless iron part is heated continuously during the positioning period, the weight of the cordless iron part is reduced, and the efficiency of the shear ironing work is improved by enabling continuous work. Further, when the cordless iron part is moved away from the proximity sensor and the work is completely interrupted, the current of the magnetic field generating coil is cut off, so unnecessary power consumption is automatically eliminated.

C Example] The present invention will be explained below based on examples.

FIG. 1 is a schematic configuration diagram including a partial cross-sectional view showing the method according to the present invention. In FIG. 0, a 7Fi ironing workbench is used. Ironing work of cloth products etc. spread out on a work surface is performed by a cordless ironing section 1. The cordless iron part 1 consists of a magnetic metal plate such as an iron plate with a pointed tip in the shape of a boat, and its upper surface 'I! ``The heat insulating handle 1B protrudes upward to cover the ring, and the circular ring and rectangular ring are arranged along the opposite working surface of the ironing table 7.

When the magnetic field 11 generated by the magnetic field generating coil 2 formed in a racetrack shape or the like intersects with one magnetic metal plate, the magnetic metal plate 1 is heated by eddy current 12 which is generated by KM, so-called magnetic induction heating. . 3 is cordless iron part 1
Detects all proximity and turns on.

The proximity sensor that emits the OFF signal 1d is provided, for example, at one location in the center of the magnetic field generating coil 2, or at a plurality of locations in a distributed manner. *In the example, the proximity sensor is a moving permanent magnet 3A, and when the movable permanent magnet 3A detects the approach of the magnetic metal plate lA17) and is attracted to the ironing workbench side, an electric sensor that opens and closes in conjunction with this movement. It is configured as a so-called magnetic proximity sensor equipped with a contact point 3B, and the ON/OFF No. 15 is controlled by a control section 8 consisting of a control circuit 5 and a switching element 6.
The excitation current m of the magnetic field generating coil 2 is controlled to be turned on or off.

The control unit 8 may be configured with either a contact circuit or a non-contact circuit.
It goes without saying that a function to convert frequency f: may be provided.

In the apparatus according to the present embodiment configured as described above, when the cordless iron part 1 is brought within a predetermined range of the ironing table where the proximity sensor 3 can magnetically detect the magnetic metal plate lAt-, the magnetic induction heating is performed. is started, but
Due to the skin effect of the magnetic metal plate, the starting magnetic field 11 does not penetrate deep into the surface of the magnetic metal plate (50% in the case of iron).
Magnetic flux is concentrated in a region (approximately 1 m at Hz, approximately 0.1 m at 5000 H2) (1) Therefore, heating by eddy currents (12) starts from the surface layer first, so ironing by thermopressure processing is performed after the proximity sensor (3) operates. The waiting time until the iron becomes available can be significantly shortened compared to that of an electric heating iron. In addition, the heat generated in the surface layer spreads throughout the magnetic metal plate, increasing the heat generation, so even if the cordless iron part 1 moves out of the operating range of the proximity sensor during work and the magnetic field 11 disappears, The temperature of one magnetic metal plate does not drop suddenly, and ironing work can be done continuously at an appropriate temperature.There is no need to increase the thickness of one metal plate, making the cordless iron part lightweight. can be converted into Furthermore, when ironing work is interrupted, such as when changing the position of the cloth product 9, the cordless iron part 1 is removed from the detection area of the proximity sensor 3, so the excitation current of the magnetic field generating coil 2 becomes zero, resulting in unnecessary power consumption. is excluded.

FIG. 2 μ is a principle cross-sectional view of a main part showing a different embodiment of the present invention, in which a plurality of sets (two sets in the figure) of magnetic field generating units 14 containing a magnetic field generating coil 2 and a proximity sensor 6 are provided. , the control unit 18 containing a plurality of sets of control units 8A, 8B is configured to be removably connected to the magnetic field generation unit 14 via the plug-in contact 10t. By replacing the generating unit 14, it is possible to freely select the shape of the work surface that can be ironed, and higher work efficiency and energy saving effects can be obtained.

FIG. 6 and FIG. 4 are perspective views showing the principle of a modified row of the cordless iron part in the practical reli device;
The figure shows a cordless iron part with a magnetic metal plate 21 having a curved thermopressure surface, and FIG. 4 shows an elongated magnetic metal plate 3.
21i - Cordless ironing section with a cordless ironing section, It is recommended to prepare a plurality of cordless ironing sections corresponding to the nine shapes of the cloth products to be ironed, convenience of ironing work, work efficiency, finish, etc. This has the advantage of being able to improve

〔Effect of the invention〕

As described above, this invention heats the cordless iron part, which is mainly made of a magnetic gold JA plate, by the magnetic field generated by the magnetic field generating coil, and detects the proximity of the magnetic metal plate with the proximity sensor to activate the magnetic field generating coil. It was configured to control the excitation current.

As a result, the magnetic metal plate f: can be heated from its six layers using the skin effect, reducing waiting time, and the excitation current of the coil is controlled on and off as the cordless iron section moves, saving energy. In addition to being effective, heat storage and heat dissipation of the magnetic metal plate are repeated as the cordless iron part moves during work, so the amount of heat stored in the magnetic metal plate is reduced, the weight is reduced, and heat pressure work at an appropriate temperature can be performed continuously. Can be done. Therefore, it is possible to provide a cordless ironing device that can connect and efficiently perform ironing operations using a lightweight cordless ironing section, eliminates wasteful power consumption during work interruptions, and is highly energy-saving. In addition, by creating a plug-in structure in which the magnetic field generating coil with a proximity sensor is divided into multiple units and made into a unit, the work area that can be used for ironing can be changed according to the size of the fabric product to be processed. , it is possible to obtain higher work efficiency and energy saving effects.Furthermore,
Since the M construction of the cordless ironing part is simplified, cordless ironing parts of various shapes and two dimensions can be easily prepared to correspond to the ironing area, improving work efficiency and ironing with good results. This provides the convenience of allowing anyone to perform the work.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram showing the laugher device of the present invention;
The figure is a configuration diagram showing a different embodiment 91 device, and FIGS. 3 and 4 are perspective views showing the principle of a modification of the cordless iron section in the embodiment device. 1...Cordless iron part, 1 person...Magnetic metal plate, 1B...Insulating handle, 2...Magnetic field generating coil, 3
... Proximity sensor, 7... Iron workbench, 8...
Control unit, 9... Cloth product, 10... Plug-in contact, 14... Magnetic field generation unit, 18... Control unit, 2132... Magnetic metal plate (military type example), 11.
...Generated magnetic field, 12...Eddy current.

Claims (1)

[Claims] 1) A cordless ironing device using induction heating,
A cordless iron section consisting of a magnetic field generating coil arranged along the anti-thermal pressing surface of the ironing workbench, a magnetic metal plate arranged on the ironing workbench so as to be heated by induction by the generated magnetic flux, and this cordless ironing part. The present invention is characterized by comprising a proximity sensor that detects the proximity of the iron part and issues an on/off signal, and a control section that controls the excitation current of the magnetic field generating coil based on the output on/off signal of the proximity sensor. Cordless ironing device.