JPH02220699A - Induction heating type iron - Google Patents

Abstract

PURPOSE:To allow a user to perform ironing work at any place without moving an iron stand by a method wherein an iron is provided with a heat-up part which is detachable from an iron work part, and the heat-up part is equipped with a heater which heats up an iron main body before ironic work starts or in the intervals of ironing work. CONSTITUTION:In case an iron is used with an heat-up part 14 detached, power is supplied to an iron work part 13 at all, and only the heat-up part is brought in operation. A user brings a heat-up part 14 and the main body of an iron 11 to a place where the user wants to perform ironing work, and the iron is heated there by a heat-up device 21 due to the action of a control circuit. That is, transistors are brought in on-off action by turns, a high frequency electric current flows through a heating coil by means of a series resonance of a resonance condenser and the heating coil, and the iron main body 11 is heated by induction current. When the iron main body 11 reaches an adequate temperature, the user takes the iron main body 11 up from the heat-up part 14, moves to a place where the user want to perform ironing work, and performs ironing work.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an induction heating iron for general household use.

BACKGROUND OF THE INVENTION FIG. 11 shows a top view of a conventional induction heating iron. In Figure 11, ■ is the iron body, 2
is an ironing board. The ironing board 2 consists of an ironing work part 3 for ironing work, and a heating rub part 4 on which the iron main body 1 is placed and heated by induction during ironing work and between ironing work. The ironing work section 3 is equipped with flat circular heat-retaining coils 5, 6, 7, and 8 that heat the iron body 1 by induction during ironing work. The heat-up section 4 includes a heat-up means 9 using an elliptical induction heating coil for inductively heating the iron body 1 before the ironing operation and between the ironing operations.

The operation of the conventional induction heating iron having the above configuration will be explained. First, the user places the iron main body 1 on the heat up means 9 of the heating tab 4, and then
heating. Further, the clothes to be ironed are spread out on the ironing work section 3. When the temperature of the iron main body 1 reaches approximately 200 degrees Celsius, the user presses the iron main body 1 onto the iron working part 3 over the clothes to be ironed and irons the clothes. At this time, the heat retention coils 5 to 8 act to heat the iron body 1 during the ironing operation. In this way, the heat escaping from the iron body 1 to the clothes and the heat of vaporization taken away by generating steam are compensated, and a drop in the temperature of the iron body 1 can be prevented. During ironing work, when folding clothes or changing clothes, the iron main body 1 is returned to the top of the heat-up section 4. Then, the temperature drop of the iron main body 1 that would otherwise occur during ironing work that could not be compensated for by the heat insulating coil can be compensated for by the induction heating effect of the heat-up means 9.

Problems to be Solved by the Invention However, the above-mentioned conventional technology has the following three problems.

The first problem is that ironing cannot be done in places where there is no ironing board.

For example, if a heavy table has been left in a reception room for a long time, the regular shape of the table will stick to the carpet. In such cases, there arises a desire to eliminate the fibrous shape of the table legs. In this way, there may be cases where it is desired to do some ironing in a place other than the housekeeping room. In such cases, the entire device must not be transported to the location. However, the ironing board of a conventional induction iron, as shown in Figure 10, is heavy and this movement is extremely difficult. .

The second problem is that storage and safety are poor. In other words, when the device is not in use, the iron body is placed on top of the heat-up section, resulting in an unsightly appearance. Furthermore, in homes with small children, there is a risk of burns due to the high temperature if the child touches the iron body immediately after use. Traditionally, the iron body was stored in an ironing case, but in this case, the ironing board and iron body are often separated, and in some cases, the user has to put the iron in the ironing case when ironing. Sometimes it took time to find the iron itself.

The third problem relates to the shape of the heat-up section. In order to be able to use the device equally well whether the user is right-handed or left-handed, the heat-up section must have a symmetrical structure from front to back. However, for example, if the heat-up part is sloped so that the iron itself can be placed easily, or if the operating parts such as the power switch and temperature setting switch are placed in front so that the user can easily operate them, there are differences between right-handed and left-handed users. In this case, the installation position is reversed.

The present invention solves the above-mentioned problems, and the first purpose is to make the heat-up part removable from the ironing board so that ironing can be done anywhere without having to move the large and heavy ironing board. The purpose of the present invention is to provide an induction heating type iron that enables this. The second object is to provide an induction heating iron that has a good appearance, is free from the risk of burns due to high temperatures immediately after use, and is easy to carry. The third objective is to provide an induction heating iron that is easy for anyone to use, regardless of whether the user is right-handed or left-handed.

Means for Solving the Problem A first means for solving the problem of ¥41 consists of an iron body and an ironing board, and the ironing board has at least one iron body that heats the iron body by induction during the ironing operation.
It has an ironing working part that has several heat-retaining coils, and a heat-up part that is removable from the ironing working part.
The heat-up section is an induction heating type iron having a heat-up means for heating the iron body before ironing work or between ironing work.

A second means for solving the second problem includes an ironing work section comprising an iron main body, an ironing board, and a cover, the ironing board having at least one heating coil for inductively heating the iron main body during ironing work. and,
It has a heat up part that is removable from the iron working part, and this heat up part has a heat up means for heating the iron body before ironing work or between ironing work, and the cover has a heat up part that is removable from the iron work part. This is an induction heating iron that can be installed on the iron.

Further, a third means for solving the third problem includes an iron body and an ironing board, the ironing board having an ironing work part having at least one heating coil for induction heating the iron body during ironing work. It has a front-back asymmetrical heat-up part that can be removed from the ironing work part and can be attached in different directions, and this heat-up part heats the iron body before ironing work or between ironing work. This is an induction heating type iron having a heat-up means.

In the first method, when you want to do a little ironing, you can use the heat-up part separately from the ironing work part, so you can iron anywhere without having to move a large and heavy ironing board. It becomes possible.

In the second means, in addition to the effect of the first means, the iron body is placed on top of the heat-up part and a cover is placed over it to improve the appearance when stored, and also to prevent high temperature immediately after use. This eliminates the risk of burns due to burns, and furthermore, it can be easily carried by removing the heat-up part.

In the third method, when attaching the heat up part to the iron work part, the heat up part is set in the iron work part in a direction that is easy for the user to use, regardless of whether the user is right-handed or left-handed. , anyone can iron easily.

Embodiment FIG. 1 is an external view of an induction heating iron according to an embodiment of the first means. In FIG. 1, 11 is the iron body, and 12 is 7102 units.

The ironing board 12 consists of an ironing work part 3 for ironing work and a heat up part 14.

The ironing work section 13 includes a plurality of heating coils 15 and 16 that inductively heat the iron body 11 during ironing work.
・Equipped with 17 and 18. Numeral 19 is a leg for preventing the ironing board 12 from falling during ironing work. 20 is a contact group having several contacts, and the heat-up part 1
4 and for exchanging electrical energy and signals. The heat-up section 14 includes a heat-up means 21 composed of a heating coil that performs induction heating when the iron main body 11 is placed before ironing work or between ironing works, a power cord 22, and a power plug 23. ing.

FIG. 2 is a circuit diagram of the induction heating iron shown in FIG. 1. In Fig. 2, 24 is a rectifier connected to a power plug 23 to convert 100 volt alternating current into direct current, 25 is a choke coil, and 26 is a smoothing capacitor. It is for absorption. 27 and 28 are transistors for converting the DC voltage of the smoothing capacitor 26 into high frequency; 29 and 30 are diodes connected in antiparallel between the collectors and emitters of the transistors 27 and 28; and 31 is the heat-up means 21; This is a resonant capacitor connected in series with the heating coil 21a. In the circuit of the ironing section 13, 32 and 33 are transistors for converting the DC voltage of the smoothing capacitor 26 to high frequency, and 34 and 35 are diodes connected in antiparallel between the collectors and emitters of the transistors 32 and 33. , 36 are resonant capacitors.

37 is a rotary relay, and the contacts are switched in the order of a, b, c, and d each time a current "flows through the coil 38. 39 is a control circuit that detects the position of the iron body 11 and controls the position of the iron body 11. The transistor 27, the transistor 28, the transistor 32, and the transistor 33 are turned on and off in accordance with the current, and a current is also supplied to the coil 38 of the rotary relay 37.

The operation in the above configuration will be explained. First, when the heat-up section 14 is used by being attached to the ironing section 13, the contact group 20 electrically connects the heat-up section and the ironing section, so it can be used in the same manner as before. . That is, the user places the iron main body 11 on the heat section 14. Then, the control circuit 39 turns on the transistor 27 and the transistor 28 alternately, so that heating is performed by the heat-up means 21. That is, the resonant capacitor 31 A high frequency current flows through the heating coil 21a due to series resonance between the heating coil 21a and the heating coil 21a.
Heating coil 21. Iron body 11 placed on a
is heated by induction. When a temperature suitable for ironing is reached, the user moves the iron main body 11 onto the ironing work section 13 and performs the ironing work. le 11
At this time, the circuit 39 operates as follows. first,
The transistors 32 and 33 are turned on and off alternately. Next, the position of the iron main body 11 is detected, the closest heating coil is selected, and a pulsed current is supplied to the coil 38 of the rotary relay 37 so that the high frequency current is supplied to this heating coil. To detect the position of the iron body 11, for example, a current transformer or the like is used to detect the magnitude of the current in the resonant capacitor 36, and pulses are applied to the coil 38 of the rotary relay 37 until this value falls within a predetermined value. One possible method is to apply current to switch the contacts. It is also conceivable to provide a magnetic sensor in each of the heat retention coils 15 to 18, provide a permanent magnet in the iron body 11, and use the output of the magnetic sensor to perform the heating. In this way, even during ironing work, the iron main body 11 is heated by any one of the heat retention coils 15 to 18. When ironing clothes or the like between ironing operations or when changing clothes, the iron body 11 is returned to the top of the heat-up section 14, and the heat-up means 21 is activated as needed by the action of the control circuit 39. Induction heating is performed from

Next, a case will be described in which the heat-up section 14 is removed and used. In this case, as can be seen from the circuit diagram in FIG. 2, no current is supplied to the ironing section 13;
Only the heat-up section 14 operates. The user takes the heat-up section 14 and the iron main body 11 to a place where he or she wants to iron, and heats the iron there. In this case, due to the action of the control circuit 39, the heat-up means 2
It is heated from 1. That is, since the transistors 27 and 28 are turned on and off alternately, a high frequency current flows through the heating coil 21a due to series resonance between the resonant capacitor 31 and the heating coil 210, and the iron body 11 is heated by induction. When the temperature of the iron body 11 reaches the appropriate value, the user moves the iron body 11 to the heat-up section 14.
Lift it up and move it to the place you want to iron,
Can be ironed.

When using only the heat °r tab, the temperature of the iron body 11 may drop because no heating power is applied to the iron body 11 during ironing work, but if the iron body 11 is used for about 1 minute, the steam will You can also use Of course, you can use it for a longer time if you iron it in dry mode, so it is actually sufficient.

Even when using only the heat-up section 14 in this way, the user can move the iron main body 11 to the heat-up section 1.
4, induction heating is performed by the heat-up means 21, and the temperature of the iron body 11 that has decreased due to the ironing operation can be recovered.As described above, the induction heating iron of this embodiment can heat up the iron body 11. Since the parts can be removed and used, small ironing tasks can be easily done anywhere.

FIG. 3 is an external view of an induction heating iron according to another embodiment of the first means. The key point of this embodiment is that the ironing board is shaped like a one-legged wagon. In this case, a power cord 40 and a power plug 41 are also provided on the ironing board side, and in normal use, input power is obtained from the power cord 40 and power plug 41, and when used with the heat-up section 42 removed, for example, The power cord and power plug can be pulled out and used from the cord reel provided in the heat-up section 42.

The above configuration makes it easy to use (and has an excellent design).

FIG. 4 is an external view of an induction heating iron according to an embodiment of the second means. In FIG. 4, 51 is an iron body, 92 is a 1402 unit, and 53 is a cover.
3 includes heat-retaining coils 95, 96, 97, and 98 for inductively heating the iron body 51 during ironing work.

Numeral 99 is a leg for preventing the ironing board 92 from falling during ironing work. Reference numeral 100 denotes a contact group having several contacts, which is used to exchange electric energy and signals with the heat-up section 52. Heat up section 5
2 is equipped with a heat-up means 101 using an induction heating coil that performs induction heating when the iron body 51 is placed before ironing work or between ironing works, a power cord 102, and a power plug 103. FIG. 5 is a diagram showing the state in which the heat-up section and cover of the induction heating iron shown in FIG. 4 are attached. In Figure 5, 5
1 is an iron main body, 52 is a heat-up part, and 53 is a cover that can be attached to the heat-up part 52, and a heat insulating material is pasted on the inside of the cover.

The cover 53 includes a cover removal button 54 that is pressed when removing the cover 53 from the heat 191 section 52, and a cover 53
A handle 55 is provided for transporting the heat-up part 3 and the heat-up part 52 in an engaged state, and the handle 55 can be attached so that it can be folded down except when transporting.

The operation of the configuration of this embodiment will be explained below. Similar to the embodiment described in FIG. 1, the heat-up section 52 can be removed from the ironing section 93 and used. In this embodiment, a cover 53 is provided,
The hot iron body 51 immediately after use is heated to the heat-up section 5.
2, the cover 53 can be attached from above. For this reason, the high temperature iron body 5
1, there is no risk of burns (and it also has the effect of looking good when stored.Also, when the heat-up section 52 is removed from the ironing section 93 and used,
The user can easily carry the handle 55 to the desired ironing location. Furthermore, the cover 53 is
Since it can be attached even when the heat-up section 52 is set on the ironing board 92, even when the heat-up section 52 is attached to the ironing board 92 and used, it has the effect of looking good when stored. .

FIG. 6 is an external view of an induction heating iron according to an embodiment of the third means. In FIG. 6, 61 is an iron main body, and 62 is an ironing board. The ironing board 62 is
It consists of an iron working part 63 and a heat up part 64 equipped with an induction heating type heat up means 71 for heating the iron main body 61 before ironing work or between ironing works. 65
・Equipped with 66, 67, and 68. Further, the heat-up section 64 can be removed from the ironing section 63, and can be attached to the ironing section 63 even if the front and back are reversed.

Six feet are used to prevent the ironing board 62 from falling during ironing work. A power cord 72 and a power plug 73 attached to its tip protrude from the rear surface of the heat-up section 64. FIG. 7 is a diagram showing a state in which the iron main body 61 is placed on the heat-up section 64 of FIG. 6. In FIG. 7, 75 is a cord reel for winding up the power cord 72, and 76 is a contact group consisting of a plurality of contacts for electrically connecting between the heat-up section 64 and the ironing section 63. 77 is an electric circuit, and the operating section 74
Heat the iron main body 61 from the heat-up section 71 according to the instructions, and operate the heat retention coils 65 to 68 of the iron working section 63 as necessary if the iron main body 61 is set in the iron working section 63. It is something that makes you In this way, the heat-up part 64 makes it easy to place the iron body 61 (and
An inclination angle is provided so that the position can be placed correctly at the location where the heat-up means 71 is located, and an operating section 74 for turning the power on and off is provided, so that the front and back are asymmetrical. FIG. 8 is a bottom view of the heat-up section 64. As shown in FIG. 8', the contact group 76 consists of a total of five contacts: contacts 78a, 79a, 80a, 81a, and 105a. The ninth [threshold] is the iron working part 6 in the induction heating type iron shown in FIG.
3 with the heat-up section 64 removed,
FIG. 6 is a top view of the ironing section 63.

In FIG. 9, 82 and 83 are contact groups for connecting to the contact group -76 of the heat-up section. The contact group 82 is
It has five contacts 78b, 79b, 80b, 81b, and 105b, and the contact group 83 includes contacts 78c and 7.
It has five contacts: 9c, 80c, 81c, and 105c.

The contact group 82 and the contact group 83 are located at the center point P of the ironing section.
The contact point 78b and the contact point 7
8c, contact 79b and contact 79c, contact 80b and contact 80
c, contact 81b and contact 81C1 contact 105b and contact 10
5c are connected inside the ironing section 63.

With this configuration, when setting the heat-up section 64, it can be attached in two different directions.

In this embodiment as well, the configuration of the control circuit is the same as that of the embodiment shown in FIG. 2, but the type of switching elements, the configuration of the inverter, etc. may be changed. Furthermore, although five contacts are used in the present embodiment, the contact group may have any number of contacts.

The operation in the above configuration will be explained. First, we will discuss the case where a right-handed person uses it. In this case, the heat-up section 64 should be moved to the ironing section 6 in the direction shown in FIG.
Set to 3. Then, since the heat-up section 64 is placed on the right side of the user, the iron main body 61 can be easily operated and used. Next, we will discuss the case where a left-handed person uses it. FIG. 9 shows the heat-up section 64 and the ironing section 63 for ease of use by left-handed people.
FIG. In this case, contrary to the case shown in FIG. 6, the heat-up section 64 is set in the ironing section 63.

Then, since the heat-up section 64 is placed on the left side of the user, even in this case, there is an effect that the iron main body 61 is easy to operate and use. Of course heat up part 6
4 may be made detachable from the iron working part 63, so that it can be made similar to the induction heating type iron of the embodiment shown in FIG. Alternatively, a cover may be provided as shown in FIGS. 4 and 5.

In each of the examples, the heat-up means uses an induction heating coil, but it is not limited to an induction heating type. For example, a heater and a contact point are provided on the iron body, and It may be possible to provide a contact point that comes into contact with the contact point and heat it.

Effects of the Invention As is clear from the above embodiments, the induction heating iron of the first means is particularly composed of an iron body and an ironing board, and the ironing board has at least one iron body that induction heats the iron body during the ironing operation. It has an iron working part that has a heat insulating coil, and a heat add part that is removable from this iron work part, and this heat up part heats the iron body before ironing work or between ironing work. By having the device, it becomes possible to iron a small amount of ironing anywhere without having to move a large and heavy ironing board.

The induction heating iron of the second means is particularly composed of an iron body, an ironing board, and a cover, and the ironing board has at least one heat-retaining coil for inductively heating the iron body during ironing. Has a heat-up part that can be removed from the working part,
This heat r knob part has a heat up means for heating the iron body before ironing work or between ironing work, and the cover can be attached to the heat up part, thereby achieving the first means. In addition to the effects, it also improves the appearance when stored and eliminates the risk of burns due to high temperatures immediately after use.

In particular, the induction heating type iron of the third means comprises an iron body and an ironing board, the ironing board having an iron working part having at least one heat-retaining coil for inductively heating the iron body during the ironing operation, and It has an asymmetric heat-up section that can be removed from the working part and attached in different directions, and the WrE heat-up section is a heat-up means that heats the iron body before ironing work or between ironing work. By adopting a configuration having the following, it is possible to obtain an induction heating iron that is easy to use for both right-handed and left-handed users.

[Brief explanation of the drawing]

Fig. 1 is an external view of an induction heating iron according to an embodiment of the first means, Fig. 2 is a circuit diagram of the same induction heating iron, and Fig. 3 is an induction heating iron according to another embodiment of the first means. Fig. 4 is an external view of an induction heating iron according to an embodiment of the second means; Fig. 5 is a drawing showing the installation of a heat-up part and a cover in the induction heating iron; Fig. 6 is an external view of an induction heating iron according to an embodiment of the third means, Fig. 7 is a sectional view of the induction heating iron with the iron main body placed on the heat-up part, and Fig. 8 is Figure 9 is a bottom view of the heat-up part of the induction heating iron, Figure 9 is a top view of the iron working part of the induction heating iron with the heat-up part removed, and Figure 10 is the induction heating iron. FIG. 11 is an external view of a conventional induction heating type iron with the heat-up part of the iron set so that it can be easily used by a left-handed person. 11... Iron body, 12... Ironing board, 13
...Iron working part, 14...Heat-up part, 1
5, 16, 17, 18...Heating coil, 21...Heating up means, 51...Iron body, 52...
Beef 8f 11 part, 53...Cover 61...°Iron body, 62...Ironing board, 63...Iron working part, 64...Heat'r knob part, 65, 66,
67, 68...Heat insulation coil, 71...Heat "r knob means, 92...Ironing board, 93...Iron working part, 95.96.97.98...Heat insulation coil, 10
1...Heat 771 means. Name of agent: Patent attorney Shigetaka Awano and 1 other person + o-41
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Claims (3)

[Claims] (1) Consisting of an iron main body and an ironing board, the ironing board has an iron working part that has at least one heat-retaining coil that heats the iron main body by induction during ironing work, and a heat-up part that is removable from the iron working part. However, this heat-up section is an induction heating iron that has a heat-up means that heats the iron body before ironing work or between ironing work. (2) Consisting of an iron body, an ironing board, and a cover, the ironing board includes an ironing work part having at least one heat-retaining coil for inductively heating the iron body during ironing work, and a heat-up part that is removable from the ironing work part. The heat-up part has a heat-up means for heating the iron body before ironing work or between ironing works, and the cover is attachable to the heat-up part. (3) Consisting of an iron main body and an ironing board, the ironing board has an iron work part having at least one heat-retaining coil for inductively heating the iron main body during ironing work, and is removable from the iron work part and can be rotated in different directions. This induction heating iron has an attachable front-back asymmetrical heat-up part, and this heat-up part has a heat-up means for heating the iron body before ironing work or between ironing work.