JPS59171598A - 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.

Construction of conventional irons and their problems In recent years, as is well known, most irons are electric irons with a built-in heater, and the mainstream is a steam iron with a steam generation function. This is due to the ease of heating to any desired temperature by simply plugging the power cord into any outlet, and the convenience of the steam function.

However, even with this type of electric iron, some people are complaining that the power cord causes operational disadvantages.

That is, the power cord gets in the way when smoothing out wrinkles or creating creases in clothing, and the other disadvantage is that it cannot be used at a location far from a power outlet. However, in conventional electric irons, the power cord was essential and could not be separated from the main body.

By the way, as irons that do not require a power cord during operation, there have been so-called regenerative irons in the past, which use a heater or some other heating means only when heating, are disconnected from the power source, etc. during operation, and perform ironing by preheating. It has been proposed. However, both of them
Due to the small heat storage [π], it has shortcomings such as short heat dissipation time and insufficient steam function, so it has not become popular at present.

Most of the conventional heat storage irons use metals such as iron and aluminum or minerals such as bricks and stones as heat storage materials, and utilize sensible heat determined by their specific heat, so that the iron can withstand a temperature change of 1°C. Approximately 0.2 cal/g per unit weight
The amount of heat stored is about °C. This was only about the amount of heat stored in water and was quite small for an iron.

Unfortunately, some conventional heat storage irons contain PB-3N.
Some used low-melting-point metals and naphthalene as heat storage materials, and utilized the heat of fusion and vaporization associated with the phase change. If heat of fusion or vaporization is used, it is possible to store a larger amount of heat per unit weight than if only sensible heat is used, but the weight loss due to volumetric expansion or evaporation when the heat storage material melts or vaporizes can be accommodated. Designing the heat storage material storage room was quite difficult. Furthermore, the above-mentioned Pb-S
In the case of n-type low melting point metals, the amount of heat stored due to the heat of fusion is 10 to 15 cal/9 per unit weight, which is not enough to generate all the steam, and the use is limited to supplementary use for conventional electric irons. There is. In the case of naphthalene, its melting point is as low as approximately 80°C, so it was not suitable for ironing because the heat of fusion could not be fully utilized.

Purpose of the Invention The present invention was made in view of the above-mentioned conventional ball games, and it improves operability by eliminating the need for a power cord during operation, and also improves heat dissipation and steam generation for a long time, which conventional heat storage type irons do not have. This provides an excellent iron with durable heat dissipation ability.

Structure of the Invention In order to achieve this object, the iron of the present invention contains pentaerythritol (pentaerythritol) used as a resin raw material or (or a resin plasticizer) in a storage chamber formed in the base.
It uses the heat dissipation of pentaerythritol to suppress the temperature drop of the base, eliminating the need for a power cord during operation, and using the large latent heat of transition, it can dissipate heat for a long time. It has a heat dissipation ability that can also be used to generate steam.

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

As shown in the figure, there is a Pentaeris IJ on the top surface of base 1.
A storage chamber 3 for accommodating a storage chamber 3, and a vaporization chamber 4 located approximately in the center of the storage chamber 3. It is buried in base 1. Water 7 for steam generation is stored in the tank 6, and when the steam button 8 is operated, the operating shaft 9 moves up and down to open and close the water supply hole 1o, and water drips into the vaporization chamber 4. Steam generated in the vaporization chamber 4 is ejected from the ejection hole 11 communicating with the vaporization chamber 4 to the bottom surface of the base 1. Further, the temperature adjustment dial 12 is connected to a temperature adjustment regulator (not shown), and is used to set the temperature of the storage chamber 3. Pentaeris ll)
- When heating the heater 5, the power cord is connected to the power plug 13 to supply power to the heater 5.

Next, the effect will be explained. When the power cord is connected to the power plug 13 and the temperature control dial 12 is set to the steam scale and the power is turned on, the heater 5 heats the pentaerythritol 2 to about 19°C, which is slightly higher than its transition temperature of 188°C.
Heated to 0°C.

Pentaerythritol 2 is usually a white crystal or powder below its melting point of 260°C, and its crystal structure differs below its transition temperature and above it, and when it is heated above its transition temperature, it releases energy internally as a change in its crystal structure. can be stored. The energy per unit weight that can be stored at this time is about 77 cal/g, which is more than six times the amount of heat stored by the heat of fusion of the low melting point metal of the Pb-3n series. Further, the volume change during transition is very small compared to phase changes such as melting or vaporization, and since it is solid at temperatures below 260'C, there is no fear of weight loss due to evaporation.

Now, when pentaerythritol 2 is heated to about 190°C, that temperature is maintained by the temperature regulator. When ironing, remove the power cord from power plug B and use it without the power cord. To generate steam, operate the steam button 8 to drip water into the vaporization chamber 4, or iron the base 1.
When cooled, pentaerythritol 2 undergoes a slight supercooling process, and when the temperature reaches around 170°C, it begins to release the energy due to the transition stored during heating, and base 1
and suppresses further temperature drop in the vaporization chamber 3.

Unfortunately, if the temperature control dial 12 is set to a value other than the steam scale, for example, if the temperature in the storage chamber 3 is maintained at approximately 100°C, pentaerythritol 2 will naturally not reach the transition temperature of 1, and as described above. The energy caused by this transition cannot be stored. However, the amount of heat storage determined by the specific heat of pentaerythritol 2 is 0.4 to 0.8 cal/9°C per 7 tl unit weight per 1°C temperature change (depending on the temperature), compared to conventional metals. It has a heat storage capacity 2 to 4 times that of metals and minerals, and does not require a large amount of heat dissipation other than when steam is generated, so there is no particular problem in practical use.

According to the experimental example, about 120g of pentaerythritol2
Continuous use of steam for 1 minute (required heat amount 600W)
), continuous use without steam (required heat amount 1
QOW) can be used for 5 to 6 minutes.

In this embodiment, a heater 6 is built-in for heating the pentaerythritol 2, so that it can be handled almost in the same way as a normal iron. Needless to say, you can get exactly the same effect by placing an iron on top of it and heating it with pentaerythritol.

The features of pentaerythritol 2 as an iron material described above are summarized as follows.

(1) Large amounts of energy can be stored internally through transfer.

(2) The temperature at which the energy stored through transition is released is the temperature suitable for steam generation.

(3) Volume change during transition is small, and since it is a solid, there is no weight loss due to evaporation, making it easy to design a storage chamber.

(4) The amount of heat storage determined by specific heat is large.

(5) Non-toxic, odorless and highly safe.

(6) It has no hygroscopicity, is stable in the air, and has little deterioration during long-term use.

(7) Since it is widely used industrially as a resin raw material or resin plasticizer, it is easily available and inexpensive.

Effects of the Invention As described above, the present invention (d) contains a storage chamber formed in the base to suppress the temperature drop of the base, thereby improving operability by eliminating the need for a power cord when operating the iron. In addition to making it possible to use the iron in a location far from a power outlet, the iron has a heat dissipation ability that can withstand unprecedented long heat dissipation and steam generation, and the effects are significant. One,

[Brief explanation of the drawing]

The figure is a partially cutaway sectional view of an embodiment of the present invention. 1...Base, 2...Pentaerythritol,
3...Storage room, 5...Heater, 13...
·electrical plug.

Claims (1)

[Scope of Claims] 0) An iron in which pentaerythritol is provided in a storage chamber formed in the base to suppress a drop in temperature of the base. (2) The iron according to claim 1, comprising heating means for base KH pentaerythritol.