JPS6048800A - Iron - 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 the Invention The present invention relates to an iron used for finishing clothes, etc.

Conventional configurations and their problems In recent years, research into the use of solar heat and waste heat has been actively conducted as an energy-saving measure since the oil crisis, and new heat storage technologies are still being developed to effectively utilize that energy. There is. In particular, as heat storage materials, instead of conventional heat storage systems that utilize sensible heat determined by the specific heat of metals and minerals, heat storage systems that utilize latent heat associated with phase changes of substances are attracting attention.

Recently, heat storage technology has been applied to steam irons that suppress the rapid temperature drop in the vaporization chamber due to water dripping when steam is generated, and prevent water droplets from spewing out from the bottom of the base. Irons that are cordless by disconnecting the power source are being developed.

A conventional iron of this kind is shown in FIG. A storage chamber 3 for accommodating the heat storage material 2 and a vaporization chamber 4 are formed on the upper surface of the aluminum die-casting base 71, and a heater 5 for heating is embedded in the base 1. Water 7 for steam generation is stored in the tank 6, and when a steam button 8 is operated, an operating shaft 9 is moved up and down to open and close a water supply hole 10, and water is dripped into the vaporization chamber 4. Steam generated in the vaporization chamber 4 is communicated with the vaporization chamber 4 and is ejected to the lower surface of the base 1 through the ejection hole 11. For example, if a heat storage material with a melting point of 150'C that uses latent heat of fusion is used as the heat storage material 2, when the power is turned on to the heater 5 and the base 1 is heated at 150°C, the heat storage material 2
begins to melt. When the heat storage material 2 is sufficiently heated and completely melted, when the steam button 8 is operated to drop the water in the tank 6 into the vaporization chamber 4 from the water supply hole 1o, the vaporization chamber 4 is cooled and its temperature is lowered. However, when the temperature of the vaporization chamber 4 drops below 150°C, the heat storage material 2 starts to solidify, and the latent heat caused by the solidification suppresses the temperature drop in the vaporization chamber 4.
The water dripping from the water supply hole 10 is completely vaporized.

However, in the conventional structure, a problem occurred due to poor heat transfer between the heat storage material 2 and the base 1. That is, one is due to the thermal resistance existing in the contact area between the heat storage material 2 and the storage chamber 3, and the other is due to the thermal conductivity of the heat storage material 2 itself.For example, in FIG. Even if it is heated, the heat storage material 2 will not heat up immediately due to the thermal resistance of the contact area between the heat storage material 2 and the storage chamber 3.
It will not reach 50°C and will not start melting. Furthermore, even if the contact portion of the heat storage material 2 with the storage chamber 3 begins to melt over time, the conductivity of the heat storage material 2 is lower than that of the aluminum used for the base 1, so the heat storage The inside of material 2 has not yet begun to melt. Therefore, in order to completely melt the heat storage material 2, it is necessary to wait until the base 1 reaches 150"C.
There were problems in that it took time and the base 1 had to be heated to a temperature much higher than 150'C.

Furthermore, during heat dissipation, even if the vaporization chamber 4 is cooled down to 150°C by dripping water when the heat storage material 2 is completely melted, the heat transfer between the heat storage material 2 and the base 1 will be affected. Due to the problem, the heat storage material 2 does not start solidifying, and the heat storage material 2
There was also a problem in that the temperature of the vaporization chamber 4 dropped considerably below 150° C. before it began to solidify.

In this way, in the conventional configuration, due to the problem of heat transfer between the heat storage material and the base, it is necessary to wait a long time for the heat storage material to heat up, and the prescribed performance of suppressing the temperature drop in the base 1 and the vaporization chamber 4 is not achieved. It has the disadvantage that it is difficult to obtain a sufficient amount of

Purpose of the Invention In view of the above-mentioned drawbacks, the present invention aims to improve heat transfer between the heat storage material and the base, shorten the heating time of the heat storage material, and suppress the temperature drop in the base, vaporization chamber, etc. This is to provide an iron that fully demonstrates the following.

Structure of the Invention In order to achieve this object, the iron of the present invention divides the storage chamber containing the heat storage material by a plurality of partition walls thermally related to the base, and thermally separates the storage chamber from the heat storage material 7-7. The contact area is increased to reduce the thermal resistance of the contact area, and at the same time, the heat storage material is divided to reduce the thermal distance between the inside and the surface of the heat storage material, improving the total scorching heat conductivity between the base and the heat storage material. ing. However, by using different types of heat storage material depending on the location where the heat storage material is stored, for example, a heat storage material with a high radiation temperature can be used around the vaporization chamber where heat radiation is intense during cooling, and a heat storage material with a high radiation temperature can be used in other parts. By storing heat storage materials with a low temperature independently in separate storage chambers, these heat storage materials mix and combine to prevent overcooling of the surroundings of the vaporization chamber without causing performance deterioration. Temperature drop can be further suppressed.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 2 and 3 show an iron according to a first embodiment of the present invention. In the figure, 1 is the base, 41d
The E conversion chamber, 6 is a heater, 6 is a tank, 7 is water, 8 is a steam button, 9 is an operating shaft, and 10 is a water supply hole, which is the same as the conventional one shown in FIG.

The inside of the storage chamber 3 is partitioned by a plurality of partition walls 12 and divided into small chambers, in which the heat storage materials 2 and 2' are housed. A heat storage material 2' having a higher heat radiation temperature than the heat storage material 2 is placed in a small chamber around the vaporization chamber 4.
is accommodated.

With such a configuration, for example, the heat storage material 2 is made of a heat storage material with a melting point of 150°C similar to the conventional example, and the heat storage material 2' is made of a heat storage material with a melting point of 1γ0°C.
If a heat storage material of
It becomes ℃. The heat storage material 2゜2' is the inner surface of the storage chamber 3 and the partition wall 1
Since the heat storage materials 2 and 2' are in contact with each other over a wide area and are divided by the partition wall 12, the thermal distance between the contact surfaces of the heat storage materials 2 and 2' and the inside is very short, so the heat storage materials 2 and 2' are heated to 150°C in a short time. . When heated to 150° C., the heat storage material 2 begins to melt.

Furthermore, when base 1 is similarly heated to 170°C,
The heat storage materials 2 and 2' are heated to 170° C. 1 in a short time, and the heat storage material 2' also begins to melt.

When the water in the tank 6 is dripped into the vaporization chamber 4 from the water supply hole 1o by operating the steam button 8 when the water storage 2, 2' is completely melted and heat storage is completed, the water in the tank 6 will be vaporized at the initial stage of the dripping. Chamber 4 is rapidly cooled and the temperature begins to drop. Therefore, first of all, when the temperature around the vaporization chamber 4 falls below 170°C, the inner surface of the storage chamber 3 and the partition wall 12 surrounding the vaporization chamber 4 also fall below 170'C, and the temperature reaches 170'C or below at the same time. The heat storage material 2' is heated to 170°C in a short time.
When the temperature becomes below, solidification begins and the solidification heat begins to be dissipated.

Heat radiation from this heat storage material 2' is carried out by the inner surface of the storage chamber 3 and the partition wall 12.
It is instantaneously transmitted to the vaporization chamber 4 through the air, acts to keep the vaporization chamber 4 at high humidity, and suppresses a rapid temperature drop at the initial stage of the droplet.

Furthermore, water continues to drip into the vaporization chamber 4, and the vaporization chamber 4 becomes 15
When the temperature drops below 0℃, as in the case of the heat storage material 2' mentioned above,
The heat storage material 2 begins to radiate the solidification heat and suppresses further temperature drop in the vaporization chamber 4. Therefore, the water dripping from the water supply hole 10 is completely vaporized, and water droplets are no longer ejected from the spout hole 11.

As described above, according to this embodiment, by dividing the storage chamber 3 into independent small rooms separated by the partition wall 12, the heat storage material 2,
Heat transfer between the heat storage materials 2' and the base 71 is carried out smoothly, and the temperature difference therebetween is minimized, thereby shortening the heating time of the heat storage materials 2, 2' and suppressing a decrease in the temperature of the base 1 and the vaporization chamber 4.

The vaporization chamber 4 is still susceptible to rapid cooling, especially in the early stages of water dripping.
By housing the heat storage material 2' with a high heat dissipation temperature in the surrounding small chamber, the temperature around the vaporization chamber 4 can be maintained even at the initial stage of water dripping without mixing and combining the heat storage material 2 and the heat storage material 2' and causing performance deterioration. It is possible to improve the effect of suppressing the decline.

FIG. 4 shows a cross-sectional view of the iron storage chamber (=1) in the second embodiment of the present invention. In FIG. 4, 13 is a honeycomb core formed of metal foil such as aluminum. It is a partition wall that is placed inside the storage chamber 3, and its side and bottom surfaces are coated with the bake 1 when the base 1 is molded.
It is cast into the base 1 and is thermally connected to the base 1.

The heat storage material 2 is filled in the storage chamber 3 which is independently divided by a partition wall 13 made of a honeycomb core.

By constructing the partition wall t honeycomb core in this way,
It is now possible to make the thickness of the partition wall extremely thin, and even in a storage room with the same volume, the contact area with the heat storage material can be increased, and the filling rate of the heat storage material can be increased.These are the effects of the invention. The present invention improves the thermal conductivity between the heat storage material and the base by independently dividing the storage chamber for accommodating all of the heat storage materials by a plurality of partition walls that are thermally related to the entire base. It is possible to provide an iron that exhibits the ability to shorten the entire length of the iron and suppress the temperature drop in the base, vaporization chamber, etc. to 10 monme, and the effect is remarkable.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway sectional view of a conventional iron, FIG. 2 is a partially cutaway sectional view of an iron according to the first embodiment of the present invention, FIG. 3 is a sectional view of the same essential part, and FIG. FIG. 7 is a sectional view of a main part of an iron in a second embodiment of the invention.

Claims (4)

[Claims] (1) An iron in which a storage chamber containing a heat storage material that suppresses a temperature drop in the base by heat radiation is formed in the base, and the storage chamber is independently divided by a plurality of partition walls that are thermally related to the base. (2) The iron according to claim 1, wherein the partition wall is constructed of a honeycomb core. (3) The iron according to claim 2, wherein the partition wall formed of a honeycomb core is formed by casting its side and bottom surfaces into the base at the time of casting the base. (4) The iron according to claim 1, 2, or 3, wherein two or more different types of heat storage materials are stored independently in divided storage chambers.