JPH0323899A - Induction heating type iron - Google Patents

Abstract

PURPOSE:To shorten waiting time and to save electricity charges by the heat of an iron base being hard to radiate to other parts, by a method wherein a standby part for placing an iron, a heating coil placed under the standby part and an inverter supplying a high frequency current to the heating coil, are provided, and projections are formed on the surface of the standby part. CONSTITUTION:Since a receiving device 31 outputs a stopping signal to an inverter 30 because of no-wave signal from a transmitting device 25, the inverter 30 can not supply a high frequency current to a heating coil 29. As the result of it, an iron base 23 is not heated. On the other hand, when a temperature of the iron base 23 becomes low by user's ironing-work and hence a temperature detected by a temperature-detecting device 24 becomes lower than a specified value, the inverter 30 detects a position of an iron body 21. When the iron body 21 comes near an auxiliary heating coil 26 or the other auxiliary heating coil 27, the high frequency current is respectively supplied to either of the auxiliary heating coils 26, 27. The iron base 23 is thus heated and its temperature rises. In this way, when the iron body 21 is placed on a standby part 28 or when it is used for the ironing work, it is possible to heat the iron base 23.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an induction heating iron used in general households.

Conventional technology Fig. 5 shows a cross-sectional view of an induction heating iron 1 showing the conventional technology.
is an ironing board. The iron body] transmits a radio signal to the ironing board 2 when the temperature of the temperature detection stage 4 and the temperature detection stage 4, which detect the temperature of the iron head 3 and iron base 3 using iron plates, is lower than a predetermined value. The transmitting means 5 transmits the information. ironing board 2
consists of an auxiliary heating coil 6 and an auxiliary heating coil 7 that inductively heat the iron body 1 during ironing, and a ceramic insulating plate on which the iron body 1 is placed when folding clothes before ironing or between ironing operations. Loading section 8
, a heating coil 9 provided below the mounting section 8 , auxiliary heating coils 6 and 7 , an inverter 10 that supplies high-frequency current to the heating coil 9 , and a radio signal sent from the transmission stage 5 . a power cord 12 for supplying AC voltage to the inverter 10, and a power plug 1.
3.

The operation will be explained below. The user first needs to use the iron body 1.
Place it on the placing part 8 of the ironing board 2 and turn on the power plug 13.
Connect it to a household AC 100 volt outlet. At this time, since the temperature of the iron base is low, the temperature detected by the temperature detection means 4- is also lower than the predetermined temperature, so a radio signal is output to the ironing board 2 by the action of the transmitting stage 5.Ironing board 2 receives the radio wave signal from the transmitting stage 5 in the receiving means 11, and outputs a heating signal to the inverter 10. Based on this heating signal, the inverter 10 supplies high frequency current to the heating coil 9, and The iron head 3 of the iron main body 1 placed on the placing part 8 is heated by induction to a predetermined temperature.

Here, the placing part 8 is made of a ceramic plate because it comes into contact with the hot iron body 1 and requires heat resistance.
It supports the weight of the eye opening body 1, maintains a constant distance between the heating coil 9 and the iron base 3, and protects the user from touching the heating coil to which high voltage is applied. ing. The temperature of the iron head 3 rises due to induction heating from the heating coil 9, and the temperature detection means 4
When detects a predetermined temperature, the radio signal from the transmission stage 5 disappears. The receiving stage 1 outputs a stop signal to the inverter 10 when the heating signal from the transmitting stage 5 disappears. As a result, the inverter 10 stops supplying the high frequency current to the heating iron 9, and heating of the ironing iron 3 is stopped. Therefore, the temperature of the iron head is maintained at about 200 degrees, which is suitable for ironing, and steam can be used to perform ironing. When the temperature of the iron base 3 decreases during ironing and the temperature detected by the temperature detection stage 4 becomes lower than a predetermined value, the inverter 10 detects the position of the iron body 1 and detects whether this position is When it comes near the auxiliary heating coil 6 or 7, a high frequency current is supplied to the auxiliary heating coil 6 or 7. Therefore, the iron head 3 is heated by induction even during the ironing operation. By the above-described operation, the iron head can be heated both when the iron main body 1 is placed on the placing part 8 and when ironing is in progress.・It can be used as a hairless iron.

Problems to be Solved by the Invention However, in such conventional techniques, ceramic or the like with high thermal conductivity is usually used for the mounting portion. For this reason, when you place the iron body on the placing part,
There was a problem in that a considerable portion of the heat of the iron base was taken away by the placing part. Therefore, the preheating time before ironing (time for placing the iron on the holder and induction heating by the heating coil 9) may take a long time, or when the iron is returned to the holder in the middle of ironing. However, extra heating time was required to compensate for the heat escaping to the mounting section. Therefore, the conventional technology resulted in long waiting times and high electricity costs.

The present invention was made in view of these problems, and by making it difficult for the heat of the iron hair to escape to other parts with simple precautions, it is possible to shorten the waiting time and save on electricity costs. The purpose is to provide irons.

Means for Solving the Problems In order to achieve the above object, the means of the present invention consists of an iron body and an ironing board, and each of the four irons has a placing part for placing the iron body, and a placing part for placing the iron body. The induction heating iron has a heating coil provided below and an inverter for supplying high-frequency current to the heating coil, and the mounting portion has an insulating plate having a convex portion on the upper part.

Due to the convex portion provided on the upper surface of the insulating plate, an air layer is created between the iron head and the insulating plate when the iron main body is placed on the mounting portion. Due to this air layer, the heat of the iron paste is easily conducted to the placing part, and therefore the time to reach a predetermined temperature is also shortened.

As a result, power consumption is reduced, resulting in an economical iron.

Embodiment FIG. 1 shows a sectional view of an induction heating iron according to an embodiment of the present invention. In FIG. 1, 21 is an iron main body, and 22 is an ironing board. The iron body 21 includes an iron base 23 and an iron base 23 made of an iron plate.
1,000 temperature detection stages 24 and 1,000 temperature detection stages 2 to detect the temperature of
4 is comprised of 1,000 transmission stages 25 that transmit a radio wave signal to the ironing board 22 when the detected temperature is lower than a predetermined value. The ironing board 22 has an auxiliary heating coil 26 that inductively heats the iron body 21 during ironing work.
and 27, a placing part 28 for placing the iron main body 21 during ironing work or when folding clothes between ironing works, a heating coil 29 provided below the placing part 28, and an auxiliary heating An inverter 30 that supplies high-frequency electric oil to the coils 26 and 27 and the heating coil 29, a receiver stage 31 that receives radio signals from the transmitter stage 25, and a power cord that supplies AC voltage to the inverter 30. 1・
32 and a power plug 33. The mounting portion 28 is surrounded by an insulating plate 34 made of a ceramic plate and a protrusion 35 made of ceramic provided on the upper surface of the insulating plate 34. FIG. 2 is a perspective view showing details of the mounting section 28. As shown in FIG. 2, a large number of convex portions 35 are provided at appropriate locations on the insulating plate 34 in a hemispherical raised shape.

The operation will be explained below in the second configuration. The user first places the iron body 21 on the placing part 28 of the ironing board 22 and connects the power plug 33 to the AC 1. 0 Connect to a 0 volt outlet. At this time, iron base 23
Since the temperature is low, the temperature detected by the temperature detection stage 24 is also lower than the predetermined temperature, and the transmission stage 25 acts to output a radio signal to the ironing board 22. The receiving means 31 of the ironing board 22 receives this radio wave signal and outputs a heating signal to the inverter 30. In response to this heating signal, the inverter 30 supplies a high frequency current to the heating coil 29 to inductively heat the iron iron base 23 of the iron main body 21 placed on the placing part 28. In this way, the temperature of the iron base 23 is raised.

Here, the placing portion 28 having the convex portion 35 performs the action shown in FIG. 3 when the iron main body 21 is placed thereon. FIG. 3 shows the iron body 2 on the second side of the placing section 28
1 is a cross-sectional view of the placing portion 28 when the device 1 is placed thereon. In FIG. 3, 36 is an air layer between the iron head 23 and the insulating plate 7 created by the convex part 35, and this part has extremely low thermal conductivity compared to the material of the insulating plate 34, such as ceramic. . Therefore, the amount of heat conducted from the iron base 23 to the placing portion 28 is extremely small compared to the conventional construction. In addition, in FIG. 3, numeral 37 is a ferrite 1 core for improving the magnetic coupling between the two heating coils and the iron base 23.

According to the inventors' experiments, the input power of the inverter is 1
In the case of 200 watts, the time required to heat the iron base from room temperature to 200 degrees Celsius is 1 minute and 15 seconds with the conventional technology, whereas it takes 1 minute and 15 seconds with the conventional technology. This will save you 25 seconds of time.

When the temperature of the iron base 23 rises due to induction heating from the heating coil 29 and the temperature detected by the temperature detection stage 24 reaches a predetermined value, the transmission stage 25 stops transmitting the radio signal. Since the receiving stage 31 outputs a stop signal to the inverter 30 since the radio wave signal from the transmitting means 25 disappears, the inverter 30 stops supplying the high frequency current to the heating coil 29. As a result, the heating of the iron base 23 is stopped.
: To be done. Therefore, the temperature of the iron base 23 is controlled to about 200 degrees, which is suitable for ironing, and ironing can be performed using a steamer. In addition, when the temperature of the iron base 23 decreases due to the user's iron work and the temperature detected by the temperature detection stage 24 becomes lower than a predetermined value, the inverter 30
1 is detected, and when the position of the iron main body 21 comes near the auxiliary heating coil 26 or 27, a high frequency current is supplied to the auxiliary heating coil 26 or 27. Therefore, the iron hair 23 is heated and its temperature increases.

As a result of the above, it is possible to heat the iron head 23 both when the iron main body 21 is placed on the placing portion 28 and when ironing is being performed. Therefore, it can be used as a complete coatless iron, and when it is placed on the placing portion 28, heat escape from the iron head 23 is reduced due to the action of the convex portion 35.

In addition, since the heat of the iron base 23 is not easily transferred to the placing part 28, the temperature of the placing part 28 is low, and even if you touch the placing part 28 while ironing, the risk of getting burned is small. There is also an effect.

In this embodiment, the ironing board 22 is provided with auxiliary heating coils 26 and 27, but these are not necessarily necessary, and induction heating is performed only when the ironing board is placed on the ironing board. Alternatively, the heat escaping from the mounting portion can be reduced.

FIG. 4 shows another embodiment of the convex portion provided on the placing portion 28. In this embodiment, the convex portion 38 is not hemispherical but elongated.

Therefore, when used when the mounting portion 28 is inclined, there is an effect that the iron main body can be placed smoothly along the longitudinal direction of the convex portion 38.

Effects of the Invention As is clear from the above embodiments, the induction heating type iron of the present invention has a convex part on the placing part so that an air layer is created between the iron head and the insulating plate. It can reduce the amount of heat escaping from the iron head when it is placed, thereby shortening the time required for the iron head to heat up to the specified temperature, reducing waiting time and reducing electricity costs. You can save money.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an induction heating iron according to an embodiment of the present invention, FIG. 2 is a perspective view of the placement part of the induction heating iron shown in FIG. Fig. 4 is a perspective view of the placing part in another embodiment, and Fig. 5 is a conventional iron. FIG. 2 is a sectional view of an induction heating iron according to the technique of 2]...Iron body, 22...r ironing board, 28
DESCRIPTION OF SYMBOLS 11... Placement part, 29... Heating coil, 30... Inverter, 34... Insulating plate, 35, 38... Convex part.

Claims (1)

[Claims] The ironing board consists of an iron body and an ironing board, and the ironing board has a placing part on which the iron main body is placed, a heating coil provided below the placing part, and an inverter that supplies high-frequency current to the heating coil. The writing section is an induction heating type iron that has an insulating plate with a convex portion on the top surface.