JPH02307445A - Portable heater and heating system - 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 [Object of the Invention] (Industrial Application Field) The present invention relates to a portable heater using a heat storage material that maintains a stable supercooled state at a temperature lower than the phase change temperature.

(Prior Art) As a conventional heater of this kind, for example, a portable heater shown in FIG. 6 has already been sold in a high-performance manner.

This heater includes a container 2 containing a latent heat storage material l that does not easily cause supercooling, a heater 3 that heats the heat storage material l in this container 2, a power supply hood 4 for this heater 3, and the container 2.
A heater main body 6 made of a heat insulating material 5 and housing the heater 3 is stored in a bag such as a waist bag 7 and carried, and is used for local heating. When using this portable heater, the heat storage material 1 in the container 2 is heated in advance by the heater 3, and heat is stored in the heat storage material 1.

When in use, the heater main body 6 containing the heat storage material 1 stored in the waist pack 7 is inserted and brought into direct contact with the abdomen, lower back, etc., to warm the body in the same way as a hand warmer.

However, because this portable heater uses a material that does not cause supercooling as the heat storage material, heat radiation starts after heat storage is completed, so the amount of heat storage decreases over time regardless of whether it is used or not. Because of this, there was not enough heat when needed, and it was not possible to provide local heating when necessary. Also, with a regular warmer, you can heat the room again by carrying fuel with you, but with the portable heater mentioned above! [Because it is heated with a heater, it cannot compensate for the lack of heat in places where there is no power supply, making it inconvenient to use.

In addition, there is a method of causing the above-mentioned supercooling and using a heat storage material having a stable supercooled state instead of the heat storage material, and utilizing the heat stored in the heat storage material when necessary. During heat storage, if the insulation is not good, all the heat storage material will melt (
Problems such as not being able to store heat (heat storage) and supercooling could not be obtained, and conversely, if the insulation was too good, the heat could not be used sufficiently during use, making it impossible to improve efficiency during heat storage and heat dissipation. .

Furthermore, as a measure to improve efficiency during heat storage and heat dissipation, it has been considered to place the heater separately, but this increases the size of the device and makes it difficult to use.

(Problem to be solved by the invention) In this way, in conventional portable heaters, when a heat storage material that does not cause supercooling is used, heat radiation starts after heat storage is completed, so it can be used after a certain amount of time has passed. The present invention was made in view of the above circumstances, and the present invention was made in view of the above circumstances, and it is possible to use heat stored in a heat storage material when necessary. The purpose of the present invention is to provide a portable heater that can improve the efficiency of heat storage and radiation when used.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the portable heater of the present invention includes a latent heat storage material having a stable supercooled state and a release means for releasing the supercooling of this heat storage material. The heat storage container has a structure that can be folded in half, and the thickness of the insulation material on the inside and side is made thinner than on the outside when folded in half, so that heat can be stored by the heating means when folded in half, and the heat can be used when opened. It is characterized by being configured as follows.

(Function) In a device configured in this way, the portable heater can be folded into two, and in order to store heat in the folded state, the thickness of the inner insulation material is made thinner, and the thickness of the outer insulation material is reduced. By increasing the thickness, the amount of heat leak from the heat storage material can be reduced and the heat storage efficiency can be increased, so that the heat storage material can be reliably brought into a supercooled state. In addition, when heat is used, the portable heater is opened and the heat is used from the thinner side of the insulation material, so heat transfer is faster, heat radiation efficiency can be increased, and heat can be used as needed.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. 1st
The figure is a configuration diagram of a portable heater according to an embodiment of the present invention when heat is utilized.

In the figure, a portable heater 20 includes a latent heat storage material 21 having a stable supercooled state, and a supercooled latent heat storage material 2.
This heat storage container 230 has a shape that allows the heat storage container 23 enclosing the canceling means 22 for canceling the supercooling of step 1 to be folded in two.
The heater 24 is arranged so as to be in contact with one side (the side that becomes the outside when folded in half). This heating heater 24 heats the latent heat storage material 21.

Further, on the outside of the heating heater 24, that is, on the outside when folded in half, a thick insulating material 25M is provided so as to reduce heat leakage from the heat storage material heater 24.
Place. This heat insulating material 25a has a hinge portion or a movable side 26 that can be folded into two.

On the other hand, on the other surface of the heat storage container 23 (the surface that becomes inside when folded in half), a thin heat insulating material 25b is provided to accommodate heat removal during heat radiation. . Further, a heat insulating material 25C is provided around the heat storage container 23, and a heat insulating material 25d is provided around the hinge portion 26.

An operation cover 27 for performing a supercooling release operation is provided on a part of the thin heat insulating material 25b at a position where the release means 22 for releasing the supercooling of the latent heat storage material 21 of the heat storage container 23 is accommodated. is provided. Reference numeral 28 is a power cord connected to the heater 24 to supply power to the heater 24.

FIG. 2 is a configuration diagram of a portable heater according to an embodiment of the present invention during heat storage. As shown in the figure, during heat storage, the sheets are folded in half and stacked on top of each other, with the side on which the thin heat insulating material 25b is provided inside.

Next, the operation in the above configuration will be explained.

First, during heat storage, the structure is folded in half and stacked on top of each other as shown in FIG. , the heat storage container 23a has two thin heat insulating materials 25b stacked on top of each other, and the heat storage container 23a faces the other heat storage container 23b.
Since the outside of both a and 23b is heated by the heater 24, there is no heat loss through the heat insulating material 25b, and the heat insulation efficiency can be increased even if the heat insulating material 25b is thin.

Heat leakage during heat storage depends on the heat insulating material 25a on the outside of the heating heater 24, and if the thickness of this insulating material 25a is made sufficiently thick, heat loss from the outside when folded in half can be reduced. Highly efficient heat storage is possible.

Next, the portable heater 20 finishes storing heat, and the latent heat storage material 22
When the heat stored in the latent heat storage material 22 of 1 unit of this portable heater is used after the supercooled state of
As shown in the figure, the portable heater 11 is opened and used, for example, by placing it under the private parts as a cushion. At this time, the thin heat insulating material 25b side is used as a heat radiation (heat collection) surface. Then, open the operation cover 27 and remove the latent heat storage material 2 inside the heat storage container 23.
By manually operating the release means 22 for releasing the supercooling of the latent heat storage material 21, the supercooling of the latent heat storage material 21 is released and the latent heat storage material 21 is solidified. The latent heat generated when the latent heat storage material 21 solidifies is radiated from the thin heat insulating material 25b and warms the user's private parts. This heat insulating material 25b is thin and has high heat transfer efficiency. Also, at this time, use the other thick insulation material 2.
Since the surface 51 is insulated, heat is concentrated on the heat insulating material 25b side and radiated. Therefore, efficient heat dissipation can be performed, and the release means 22 allows the latent heat storage material 2 to be in a supercooled state.
Since the supercooling state described in step 1 can be canceled, heating can be used in any place of your choice as needed.

Next, other embodiments of the present invention will be described with reference to the drawings.

FIG. 4 is a sectional view of a portable heater according to another embodiment of the present invention during heat storage. The same parts as in the previous embodiment use the same reference numerals.

In the figure, a portable heater 20 includes a latent heat storage material 21 having a stable supercooled state, and a supercooled latent heat storage material 2.
The heat storage container 23 containing the release means 22 for canceling the supercooling of the heat storage container 23 is shaped so that it can be folded in half, and a heating heater is placed in contact with one side of the heat storage container 23 (the surface that becomes the outside when folded in half). Place 24. This heating heater 24 is for heating the latent heat 8M material 21.

Further, a thick insulating material 25a is provided on the outside of the heater 24, that is, on the outside when the heater 24 is folded in half, so as to reduce heat leakage from the heater 24 during heat storage.
Place. This heat insulating material 25a has a hinge portion or a movable side 26 that can be folded into two.

On the other hand, the other surface of the heat storage container 23 (bifold shape 1
! A thin heat insulating material 25b is provided on the surface that becomes inside when IK is applied, in order to take out heat during heat radiation. Further, a heat insulating material 25C is provided around the heat storage container 23.
A heat insulating material 25d is provided around the hinge portion 26, and a temperature sensor 30 is provided on the side of the thin heat insulating material 25b provided on the surface that becomes inside when the heat storage container 230 is folded in half. .

Next, the control circuit unit for the heater 24 having the above-mentioned configuration will be explained using the control circuit diagram of a portable heater according to another embodiment of the present invention shown in FIG.

This control circuit 1 unit includes a timer 32 that turns off at a fixed time.
This timer 32 and the temperature sensor 30 perform control to repeatedly turn ON and OFF at a constant temperature, thereby controlling energization and disconnection of the heater 24. That is, when the temperature of the heat storage material 21 exceeds a certain temperature, the temperature sensor 31C and the heating heater 2
When the heat storage material 21 has been heated for a certain period of time or more, the timer 32 stops the power supply to the heater 24.

By operating in this way, overcooling due to insufficient heating, which tends to occur with latent heat storage materials, does not occur, and the stored heat is prevented from being lost due to heat loss. Moreover, since it is possible to prevent the latent heat storage material from being altered due to overheating, more reliable supercooling can be obtained, and the efficiency of heat storage and heat radiation can be increased.

In the above-described embodiment, the heat storage container was configured with one heat storage container, and the heat storage container was folded in half to store heat, but the present invention is not limited to this. They may be configured such that they face each other and store heat. Further, the heating heater may be provided on only one side of the heat storage container or on both sides.

〔Effect of the invention〕

According to the present invention, the portable heater has a structure that can be folded into two, and in order to store heat in the folded state, the thickness of the insulation material on the inside is made thin and the thickness of the insulation material on the outside is made thick. Since the amount of heat leakage from the material can be slightly reduced and the heat storage efficiency can be increased, the heat storage material can be reliably brought into a supercooled state. In addition, when using heat, the portable heater is opened and heat is used from the thinner side of the insulation material, so heat transfer is faster υ, heat radiation efficiency is higher, and heat can be used as needed.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a portable heater according to an embodiment of the present invention when heat is used, FIG. 2 is a block diagram of a portable heater according to an embodiment of the present invention during heat storage, and FIG. 4 is a sectional view of the portable heater d according to an embodiment of the present invention during heat storage, FIG. 4 is a sectional view of the portable heater d according to another embodiment of the present invention during heat storage, and FIG. A control circuit diagram of a portable heater according to another embodiment of the present invention, FIG. 6 is a configuration diagram of a conventional portable heater. 20... Portable heater, 21... Latent heat storage material, 22
...Release means, 23... Heat storage container, 24...
・Heating heater, 25a to 25d...Insulating material, 26・
...Hinge part, 27...Operation cover, 28...
Power outlet, 30... Temperature sensor, 31... Control circuit, 32
・・・Timer〇Representative Patent Attorney Rules Noriyuki Chika Yudo Hiroshi Uji, ′-~ ξ 27 2nd Leap SQ 37th Figure 4 and System I County Ro 亦'$ 5 Figure Destiny 6 Figure

Claims (4)

[Claims] (1) A heat storage container enclosing a latent heat storage material having a stable supercooled state and a release means for releasing the supercooling of the heat storage material; a heating means for heating the latent heat storage material in the heat storage container; and the heat storage material. A portable heater comprising a container and a heat insulating material provided outside the heating means, which can be folded into two parts, and characterized in that the heat insulating material on the inside is thinner than the heat insulating material on the outside when folded in two. heater. (2) The portable heater according to claim 1, wherein the heater stores heat when folded in half and radiates the stored heat when opened. (3) The portable heater according to claim 1 or 2, wherein the heater is provided with temperature detection means for detecting the temperature of the latent heat storage material on a surface that becomes inside when folded in half. (4) A heat storage container enclosing a latent heat storage material having a stable supercooled state and a release means for releasing the supercooling of the heat storage material, a heating means for heating the latent heat storage material in the heat storage container, and the heat storage material. In a heater configured so that it can be folded into two, it is made up of a container and a heat insulating material provided outside the heating means, which is folded in half during heat storage, the heat storage material is heated by the heating means, and the thin heat insulating material is folded during heating. A heating method characterized in that the object is heated by opening it so that the object to be heated is placed with the side facing upward and releasing the rotational cooling of the heat storage material.