JPH1094555A - Portable far-infrared rays emitting type heater and coin type portable far-infrared rays emitting type heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a portable heater which has no possibility of fire and a burn and can heat the center of a body by far-infrared rays emitting effect by covering a self-temp. control type facial heat generating element prepd. by forming a heat- sensitive electric resistant compsn. into a plane-like shape with a rubber or a resin and supplying electric power to the element by a battery. SOLUTION: This portable far infrared rays emitting type heater used for climbing a snow mountain comprises an electric body warmer consisting of a body warmer and a battery box. In this case, a body warmer main body 11 is constituted by bonding peripheral edge parts of both resin sheets 33 by heat fusion, etc., under a condition where a self-temp. control type facial heat generating element 112 and a heat insulating material 113 are placed between two resin sheets 33. In addition, the element 112 is constituted by arranging a facing electrode 112b and arranging a heat-sensitive electric resistant compsn. 112a between the electrodes and pinching both surface and back face with polyethylene terephthalate film 112c. In addition, the heat-sensitive electric resistant compsn. 112a is formed by dispersing uniformly carbon powder in polyethylene glycol.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable far-infrared radiation heating body and a coin-type portable far-infrared radiation heating body, and more particularly, it can be used many times, is safe, and has far-infrared radiation. The present invention relates to a portable far-infrared radiation heating body and a coin-shaped portable far-infrared radiation heating body that can warm a human body in a short time by an effect.

[0002]

2. Description of the Related Art Conventionally, in an area where power is not supplied, heating has been performed exclusively by burning an object. In leisure activities such as snow mountain climbing and skiing, portable disposable hand warmers by oxidizing powders such as iron have been used. In addition, benzine hand warmers that burn benzene with a platinum catalyst have been used.

[0003]

However, in a heating system of a type that burns an object, there is a risk that a fire, a burn, or damage to surrounding objects may be caused by heat. There was also a risk of carbon monoxide poisoning due to incomplete combustion. Especially when the heating equipment is used in a narrow tent in snowy mountains etc.
We had to pay close attention to these points. Also, disposable hand warmers are suitable when used for short-term purposes such as day trips, but when the schedule extends over several days, a large number of them must be held, and their volume and weight are problems. Was. In addition, it is inconvenient in that it is not possible to freely turn on and off the heat generation function, and therefore, it is not possible to effectively use each handpiece, and it is necessary to bring more disposable handpieces. There was also.

[0004] In addition, even in the method of burning an object, there is a benzene hand warmer which sufficiently surrounds the periphery thereof, controls the flame, and keeps the surface temperature constant. However, handling such as maintenance of equipment and refueling is troublesome, and is not widely used in general. Furthermore, in recent years, an increase in carbon dioxide in the air has become a problem, and it has been desired to reduce the burning of substances as much as possible.

The present invention has been made in view of the above-mentioned problems and necessity, and can be used many times. The present invention is safe with less fear of fire and burns. It is an object of the present invention to provide a portable far-infrared radiation type heating element which can be heated to a core in a short time and can be operated at a low voltage. Another object of the present invention is to provide a portable far-infrared radiation heating body capable of heating without generating carbon dioxide by using a wind power generator or the like.

[0006]

SUMMARY OF THE INVENTION A portable far-infrared radiation type heating body according to the present invention is a heat-sensitive electric resistance composition having a property in which electric resistance changes suddenly with an appropriate temperature change in the range of 36 to 47 ° C. A self-regulating type planar heating element having electrodes formed thereon and having electrodes, and a covering portion made of rubber or resin covering the self-temperature regulating type planar heating element, and
A power supply cord for supplying power to the self-temperature-controlling planar heating element, and a storage battery for storing power and supplying power to the self-temperature-controlling planar heating element through a power supply cord; It is characterized by being excellent.

In the portable far-infrared radiation type heating body of the present invention, since heating is performed by a self-temperature-controlling planar heating element, the temperature is controlled between an upper limit temperature and a lower limit temperature as in the case of performing temperature control by a thermostat or the like. It is comfortable without the heating temperature fluctuating finely. Further, since the heating temperature does not rise abnormally due to electrical or mechanical failure of the device, it is safe.

In the above-mentioned "portable far-infrared radiation type heating element", the "temperature at which the electric resistance suddenly changes" is set to 36 to 47 ° C., usually because the temperature at which a human touches and feels “warm” comfortably is 42%. When the temperature exceeds 47 ° C. even if some heat radiation is taken into consideration, the contacting human body feels hot. On the other hand, when the temperature is lower than 36 ° C., the temperature is lower than the temperature of the human body. In addition, Preferably it is 38-43 degreeC. 38-43 ° C
This is because it is a comfortable temperature that is not heated or cold.

The portable far-infrared radiation heating body of the second invention is the portable far-infrared radiation heating body of the first invention,
The storage battery is a nickel-metal hydride battery. Further, this storage battery may be a lithium ion hydrogen battery. The present invention employs a nickel-metal hydride battery or a lithium-ion battery as a power source for the portable far-infrared radiation heating body.
The overall weight can be reduced including the power supply. In particular, when a nickel-metal hydride battery is employed, it can be manufactured at a lower cost than a lithium-ion battery. On the other hand, when a lithium ion battery is adopted, the memory effect is very small.

A portable far-infrared radiation heating body according to the fourth invention is the portable far-infrared radiation heating body according to any of the first to third inventions, and is connected to the storage battery. It has a generator for supplying electric power. Since this portable far-infrared radiation type heating body is provided with a generator, it can be used even in a place without a power source. This generator can be a wind power generator or a human-powered generator that generates power by rotating a rotating member by a human. When the portable far-infrared radiation heating body is formed by the above-described generator, no battery or fuel is required. If the generator is a wind power generator, it can be used semi-permanently as long as there is wind.

[0011] The coin-type portable far-infrared radiation type heating body of the tenth aspect of the present invention comprises a heat-sensitive electric resistance composition having a property in which the electric resistance suddenly changes with an appropriate temperature change in the range of 36 to 47 ° C. Self-regulating type planar heating element provided with electrodes and covering the self-temperature regulating type planar heating element and made of rubber or resin; It is characterized by comprising a coin-type battery for supplying electric power, and a connecting portion for electrically connecting the electrode of the self-temperature-regulating type planar heating element to the coin-type battery, and is excellent in far-infrared radiation.

The portable far-infrared radiation type heating body of the twelfth aspect of the present invention is a heat-sensitive electric resistance composition having a property in which the electric resistance suddenly changes in response to an appropriate temperature change in the range of 36 to 47 ° C. A self-regulated surface heating element formed and provided with an electrode, a covering portion covering the self-temperature regulation type planar heating element and made of rubber or resin; And a storage battery that supplies power to the storage device, wherein the storage battery is installed in the coating portion,
It is characterized by excellent far-infrared radiation.

Since the portable far-infrared radiation heating body of the twelfth aspect of the present invention includes a storage battery in the covering portion, the whole portable far-infrared radiation heating body can be made compact. In addition, when a battery is installed near the self-temperature-adjusting planar heating element that warms the human body, when the portable far-infrared radiation heating body is brought into close contact with the user's body, the hard battery contacts the user's body. This will cause discomfort. However, in the present invention, since the storage battery is installed in the covering portion, the storage battery comes into contact with the user through the abdomen, and the solid battery body comes in contact with the storage battery, thereby causing the user to feel discomfort. Absent.

The portable far-infrared radiation heating body of the thirteenth invention is the portable far-infrared radiation heating body of the twelfth invention, and is a connection for connecting a cord for supplying external power to the storage battery. A terminal is provided, and the connection terminal is provided so as to be exposed on the upper surface of the covering portion. Also, the 14th book
According to a twelfth or thirteenth aspect of the present invention, there is provided the portable far-infrared radiation type heating body, wherein the storage battery is detachably installed.

The portable far-infrared radiation heating body according to the thirteenth aspect of the present invention includes a connection terminal for connecting a power supply cord. A portable far-infrared radiation type heating body can be used alone by removing the cord for use from the terminal, and when charging, connect the charging cord to the terminal and, for example, through an AC adapter Charging can be performed from an AC power supply. Therefore, the user can freely move around during use by using the portable far-infrared radiation type heating body alone, and at this time, the cord does not become an obstacle. In addition, since the connection terminals are provided so as to be exposed on the upper surface of the covering portion, charging can be easily performed by connecting a charging cord during charging.

In the portable far-infrared radiation type heating element according to the fourteenth aspect of the present invention, since the storage battery is detachably installed, the storage battery can be removed and charged. For this reason, if the battery is used alternately with the spare storage battery, the use is not interrupted by charging, and the portable far-infrared radiation heating body can be continuously used. If power is supplied directly from a household AC power supply, it is of course possible to continue using a portable far-infrared radiation type heating element,
In such a case, the user cannot move freely because the power cord is connected to the outlet. However, in the present invention, since a storage battery is used, such a problem does not occur.

In the fourteenth aspect of the present invention, the installation and removal of the storage battery in the covering portion may be such that the installation site of the storage battery is covered by an openable and closable lid provided on the abdomen. Further, the storage battery may be independently covered with the abdomen, and may be provided so as to be connectable to a portable far-infrared radiation type heating body which is covered with a separate covering portion.

The portable far-infrared radiation heating body according to the fifteenth aspect of the present invention is a sheet-like heat-sensitive electric resistance composition having the property that the electric resistance changes suddenly with an appropriate temperature change in the range of 36 to 47 ° C. A portable far-infrared radiation type heating element comprising: a self-temperature-adjustable planar heating element having electrodes formed thereon, and a storage battery for storing power and supplying power to the self-temperature-adjustable planar heating element, A heating element housing section for housing the self-temperature-regulating type planar heating element, a storage battery housing section for housing the storage battery, and a fixing section that fixes and couples each other to each other, and includes a belt-shaped body; It is a portable far-infrared radiation type heating body that can be wound around a part.

For this reason, the portable far-infrared radiation heating body of the fifteenth invention can be used, for example, wound around the waist. Here, as the fixing portion, for example, various fixing tools such as a hook-and-loop fastener, a button, and a hook can be considered. In the fifteenth aspect of the present invention, the provision of the expansion / contraction portion enables the portable far-infrared radiation type heating body to be displaced during use because it can be perfectly wound around the waist and the like.

According to a sixteenth aspect of the present invention, there is provided a portable far-infrared radiation type heating body according to the fifteenth aspect, wherein the storage battery housing is provided separately from the belt-like body. It can be attached to an appropriate location on the above-mentioned belt-like body by a hook-and-loop fastener.

The storage battery in each invention has a voltage of 1.2 V, 1.
Single cells of 5 V, 3 V, etc. are connected alone or a plurality of cells are connected in series and the voltage is 1 to 10 V, preferably 1.2 to 9
V. By using a high voltage such as 6 to 9 V, the temperature rising speed at power-on can be further increased. In the case of a low voltage such as 1.2 to 3 V, the number of storage batteries can be reduced. As the storage battery, a sealed lead storage battery, a nickel cadmium battery, or the like can be used in addition to the nickel hydrogen battery and the lithium ion battery. When these batteries are employed, they can be manufactured at lower cost than nickel-metal hydride batteries or lithium-ion batteries. Further, a primary battery such as a readily available manganese dry battery can be used instead of the storage battery.

The heat-sensitive electric resistance composition in each of the above inventions may include a resin (or rubber) and conductive particles dispersed in the resin. Furthermore,
The resin is preferably a polyalkylene oxide compound containing a plurality of alkylene oxides as a unit structure in the molecule. Among the above resins, the “polyalkylene oxide compound” preferably used is a resin having a polyalkylene oxide portion in its skeleton (it can be said to be a polyether compound), and any resin having a positive property may be used. This compound is usually a solid at room temperature with a melting point of 18 ° C to 75 ° C. The specific compound is illustrated below.

Examples of the polyalkylene oxides include polyethylene glycol (also referred to as PEG), polyethylene oxide (such as diethylene glycol), polypropylene glycol (also referred to as PPG), polypropylene oxide (such as dipropylene glycol), and polyoxyethylene. Block copolymer of polyoxypropylene (what is called pluronic or tetronic, see FIG. 14), polyoxyethylene-mono or dialkyl ether (see FIG. 14), polyoxyethylene-mono or diallyl ether, polyoxy Ethylene alkyl allyl ether, polyoxyethylene mono- or dialkyl ester, polyoxyethylene mono- or dialkylamine, polyoxyethylene sorbitan fatty acid ester Le, and the like. Of these,
Polyethylene glycol is preferred.

The “resin” has a melting point of 18 ° C. to 7 ° C.
As long as it shows a positive characteristic at 5 ° C., it may be other than a polyalkylene oxide compound, for example, a polyolefin resin (PE, EVA, etc.), a polyamide resin, polystyrene, polyvinyl chloride, polyphenylene oxide, etc. . Further, for example, a cyclic compound other than the resin may be used.

Examples of the cyclic compound include trioxane and various crown ethers such as dibenzo-14.
-Crown-4, 15-crown-5, benzo-15-
Crown-5, 18-crown-6, dibenzo-18-
Crown-6, dicyclohexyl-18-crown-
6, dibenzo-21-crown-7, dibenzo-24-
Crown-8, dicyclohexyl-24-crown-
8, tetrabenzo-24-crown-8, dibenzo-6
0-crown-20 and the like (see Table 1).

[0026]

[Table 1]

The conductive particles may be carbon fine pieces, metal fine pieces or metal oxide fine pieces in the form of powder, fiber or whiskers. The “carbon fine pieces” are made of graphite, activated carbon, amorphous carbon, or the like, and can be mixed with the above alkylene oxide compounds. Of these, graphite is preferred. The compound to be mixed in the alkylene oxide compound may be in the form of a metal, a metal oxide, or another conductive fine piece (powder, fiber or whisker) instead of the carbon compound described above. ) Can also be used. Even in these cases, it is considered that the lone pair of oxygen in the ether bond also plays an important role in dispersion of the filler and the like. Specific examples of the conductive particles and the like are as follows.

Metals such as metal powder, metal foil pieces, and metal fibers are gold, silver (see FIG. 18), copper, lead, tin, antimony, iron, nickel, cobalt, indium, and antimony-doped acid value tin. (See FIG. 18). The particle size of this powder is about 0.1 to 50 μm,
Metal foil pieces are 0.1 to 20 μm in thickness, aspect ratio is 5 to 2.
About 00 is preferable. The metal fibers preferably have a thickness of about 0.05 to 50 μm and a length of about 1 to 2 mm.

Specific constituents of the above-mentioned "thermoelectric resistance composition" can be variously selected within a range in which the object of the present invention can be achieved. For example, a polyalkylene containing a plurality of alkylene oxides as a unit structure in a molecule can be used. A combination of a resin made of an oxide compound and conductive particles that are carbon fine pieces, metal fine pieces or metal oxide fine pieces can be used. The mixture of the two is extremely stable and homogeneously mixed at any composition ratio, and does not phase-separate. Then, it is sufficient if there is a region where the positive characteristic appears depending on the mixing ratio of the carbon fine flakes and the like, and the composition (type and mixing ratio thereof) is such that the steady-state heating temperature of the thermosensitive electrical resistance composition falls within a predetermined temperature range. Usually, these two 100
The mixing ratio of the carbon fine pieces to the weight part is in the range of 15 to 40 parts by weight. When the amount is less than 15 parts by weight, the resistance is often high and there is no conductivity. When the amount exceeds 40 parts by weight, on the contrary, the conductivity becomes large, and the one that does not show a positive characteristic due to a temperature change increases. However, the range in which the positive characteristics appear due to the type and degree of polymerization of the polyalkylene oxides, the type and blending ratio of the carbon fine pieces, and the addition of additives such as water, etc., varies, and is limited to the above range. Not something.

The above-mentioned "coating portion" is usually rubber or resin, of which rubber is preferable. This is because, when a person comes into contact with the mat, it has a soft feeling and exhibits an excellent function as a mat. The type of the rubber is not particularly limited, and a thermoplastic elastomer such as urethane rubber, EPR, or EPDM;
Further, synthetic rubber such as silicon rubber, natural rubber, SBR, NBR and the like may be used. Of these, urethane rubber and silicone rubber are preferred. This is because it is excellent in water resistance and moldability, and can be easily molded at room temperature or under heating using a liquid raw material. Further, among the urethane resins, a urethane resin obtained by reacting and curing a modified polyol derived from castor oil and polyisocyanate, or a prepolymer obtained by reacting a modified polyol derived from castor oil and polyisocyanate is cured. What is comprised from the following polyurethane resin is preferable. This is because they are excellent in water resistance, moisture aging resistance, room temperature curability, and moldability. On the other hand, silicone rubber is excellent in water resistance, moisture aging resistance, room temperature curability, moldability, and safety.

The resin is not particularly limited, but is preferably a resin having excellent water resistance and less leaching of contained components into water. Examples of the resin include an epoxy resin, a polyurethane resin, a polyester resin, and further, polyethylene, polypropylene, polyvinyl chloride, and the like. From the viewpoint of ease of molding, a liquid material such as the epoxy resin is preferable. Further, the weight can be reduced as a closed-cell foamed resin (polyethylene, polyurethane, polypropylene, etc.).

When the thermosensitive electric resistance composition is supplied with electric power, a current flows because the resistance is low while the temperature is low, and as a result,
When the temperature of the heating element rises and approaches a certain temperature, the resistance value sharply increases, so the current decreases, and as a result, the heating element generates heat at a constant temperature (steady heating temperature) (for example, see FIGS. 9 and 12). Then, in this composition, as shown in the following [Embodiment of the invention] section,
EG molecular weight, blend of PEG with different molecular weight,
The steady-state exothermic temperature is reduced to 36 to 4 by the addition of additives such as water
It can be freely set to about 7 ° C (preferably 38 to 43 ° C). Therefore, by these adjustments, a composition suitable for a portable far-infrared radiation heating body can be prepared. Further, the fluctuation of the heat generation temperature is much smaller than that of the conventional PTC heater, the heat effect is stabilized, the thermostat for temperature control is not required, and the electric circuit configuration is extremely simple.

In the case where the self-temperature-controlling planar heating element is insert-molded in a castor oil-based polyurethane resin mat, it can be cured at room temperature, so that its manufacture is extremely simple, and it is waterproof and moisture-proof. Excellent in flexibility, flexibility (deformability), good touch, and less deterioration. Accordingly, the waterproof measures against the self-temperature-regulating type planar heating element are made thorough, and the manufacture of the far-infrared radiation type heating body becomes easy.

The shape of the far-infrared radiation heating body of the present invention is as follows.
In particular, for example, it may be a flat plate, a cross section may be a convex lens shape, a planar shape may be a square, an ellipse, a round, or the like, and a size may be such that it covers the entire back surface of the user. Then, it may be a part of the size.

Next, the self-temperature-controlling planar heating element used in the present heating element and its radiation far-infrared spectrum will be described. These heating elements maintain a constant temperature after energization by a switching function. The constant temperature is about 36 to 47 ° C. When calculated from the law of black body radiation (Wien's displacement law), radiant far infrared rays give a spectrum having a maximum value at 9.1 to 9.4 μm. The relationship between the temperature and the radiation far-infrared wavelength is as follows. 10 ° C. (10.24 μm), 30 ° C. (9.5
6 μm), 40 ° C. (9.26 μm), 50 ° C. (8.97 μm)
μm), 60 ° C. (8.70 μm). Since far-infrared rays having these wavelengths enter the human body, far-infrared rays (slightly more than 9 μm) emitted by heating at about 36 to 47 ° C. are indispensable for the portable far-infrared radiation heating body of the present invention.

Now, the ordinary hand warmer warms the human body, but since it moves only from the surface of the human body to the inside by heat conduction, a considerable amount of time is required. However, the far-infrared rays penetrate the tissue and can directly warm the human body from the inside. That is, the effect of far-infrared irradiation is to literally warm from the core.

[0037]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, in order to examine the conditions of a heat-sensitive electric resistance composition used for a far-infrared radiation type heating body used as a handker, etc., a steady heating temperature of 36 to 47 ° C. (preferably) (38-43 ° C.), first, (1) the blending amount of graphite powder, (2)
(3) a mixture of polyethylene glycols (hereinafter referred to as PEG) having different molecular weights, (4) PEG and polypropylene glycol (PP)
G. ), (5) an additive such as water, and (6) an additive of a swelling polymer substance.

(1) Examination of the Amount of Graphite Powder In order to examine the relationship between the amount of graphite powder and the appropriate steady-state heat generation temperature, the following test was conducted, and the results were shown in FIGS.
0 is shown. That is, a heat-sensitive resistance composition was prepared by mixing PEG graphite powder having a melting point of 49 ° C. in the ratio shown in FIG. 9, and a transparent acrylic resin plate (260 × 350 × 2 mm) and a urethane rubber plate (260 × 350 × 30 mm) were prepared. The heat-sensitive resistor composition was sealed in a gap of 50 mm in a thickness of 50 mm. The electrodes were alternately arranged in the heat-sensitive resistance composition. A thermocouple for measuring temperature is provided at the center of the heating element. A voltage change of 100 V AC was applied to this heating element, and the temperature change was examined. According to this result, the steady-state heating temperature can be freely set by the mixing ratio of the graphite powder (FIG. 9). If the addition of the graphite powder is about 25 to 33%, a steady heating temperature of 36 to 47 ° C. suitable for a hand warmer can be secured.

When the heating time of a composition containing 25% of graphite is examined, first, the composition is completely melted within 5 minutes from the vicinity of the electrode by applying a voltage. Looking at the temperature change, the maximum temperature is 42 ° C after about two hours of energization.
It has become. Thereafter, the temperature control function operates to maintain the same temperature. In this state, the voltage application was stopped after a lapse of 6 hours and 30 minutes (FIG. 10). However, in this example using PEG, the same temperature is maintained for as long as one hour and thirty minutes after the energization is stopped. And then the temperature gradually decreases,
The temperature is completely returned to room temperature after a lapse of 7 hours or more after the power supply is stopped, and the heat retention is excellent for a long time. This is because PEG in a molten state dissipates heat while solidifying.

(2) Examination of the molecular weight of polyethylene glycol When examining the relationship between the molecular weight of PEG and the steady-state heating temperature, this temperature can be freely adjusted by changing the molecular weight as shown in FIG. For hand warmers, the molecular weight is 10
It turns out that about 00-2000 (same temperature; about 33-47 degreeC) is preferable. The results in FIG. 11 include 27% by weight of graphite (“90-300M” manufactured by Nishimura Graphite Co., Ltd.), and the composition layer is 80 × 3000 × 80 m
m, a serrated copper electrode was used, and the applied voltage was 100
V.

(3) Mixing of polyethylene glycols having different molecular weights Ultra-high molecular weight PEG having a molecular weight of 1,000,000, medium molecular weight PEG having a molecular weight of 400,000, and low molecular weight PEG having a molecular weight of about 3000 to 8000
Are blended, and the steady-state heating temperature in that case is examined,
The results are shown in Table 2 and FIGS.

[0042]

[Table 2]

According to these results, the steady heating temperature can be adjusted depending on the combination. According to these data, a target having a temperature of about 51 to 55 ° C. is obtained.

These results were measured by fabricating a device as follows. That is, 95 parts by weight of toluene is mixed with 5 parts of polyethylene glycol (Union Carbide Polyox (WSR N-12K)) having an average molecular weight of about 1,000,000, and after the polymer is sufficiently dissolved, flaky graphite (Nishimura Graphite Co., Ltd.) 1.58 parts of "90-300M"). In advance, a net-shaped shield wire is set as an electrode on a glass plate, and the above-mentioned solution is flowed and dried on the glass plate to form a planar heating element having a distance between the electrodes of 76 mm and a length of 30 cm, followed by vacuum drying. The solvent was removed. The obtained sheet heating element is very excellent in flexibility. That is, since polyethylene glycol having a high molecular weight exhibits flexibility, a flexible planar heating element can be obtained by using this. This was covered on the top and bottom with a urethane foam sheet having a thickness of 5 mm.
The relationship between the heat generation temperature and the resistance at each time after V was applied was examined.

(4) Use of block copolymer of PEG and PPG Pluronic (“F88” manufactured by Asahi Denka Kogyo KK) is a copolymer obtained by reacting polyethylene glycol on both sides of a molecule of polypropylene glycol. A composition of 70 g and 30 g of graphite carbon (manufactured by Yoneyama Pharmaceutical Co., Ltd.) was heated and melted, and a copper foil electrode was bonded to a fiber-attached polyester sheet. . A 1.5VDC power supply in which aluminum foil is bonded to one surface of the sheet heating element to form a heat sink, a temperature sensor is attached, and two 50 mm heat insulators are sandwiched between two single batteries in parallel. , And the temperature at each time is shown in FIG. Note that the results shown in FIG. 14 were obtained when the amount of graphite carbon was 28% by weight. As shown in these results, the steady heating temperature was 4
The thing of 0-50 degreeC suitable for heating is obtained.
Further, as shown in FIG. 15, even with a power supply of one dry battery (1.5 V), an appropriate heat generation behavior was exhibited as in the case of 100 V.

(5) Examination of Additives such as Water The effects of additives such as water were examined. FIG. 16 shows the result. According to this result, the temperature can be easily changed by changing the amount of water added. Further, as shown in the figure, it can be seen that a composition in the range of 36 to 47 ° C. can be obtained. These results were measured by fabricating a device as follows. That is, a mixture of polyethylene glycol (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., “# 6000”), graphite powder (manufactured by Yoneyama Pharmaceutical Co., Ltd., 28% by weight) and a predetermined amount of water are heated and melted. 11
Was put between two of the fiber-attached polyester sheets, and the whole was formed into a sheet having a thickness of 300 μm. The electrode is 6 mm wide,
An 80 μm-thick zigzag copper tape electrode was used.
An aluminum foil having a thickness of 50 μm was bonded to one surface of the sheet heating element to form a heat sink. The temperature at each time after 100 V AC was applied was measured. As shown in the figure, the steady exothermic temperature decreases with the addition of water, and the increase in the resistance value with the addition of water is clearly seen.

Further, by adding one or more of alcohol, carboxylic acid and polyalkylene glycol having a side chain in addition to water, the adjustment can be similarly made. Although water has an extremely large effect as a regulator, its use is limited to a closed system because of its large volatility.
Here, as the alcohol to be added, higher alcohols such as ethyl alcohol, propyl alcohol, and cetyl alcohol, and polyhydric alcohols such as ethylene glycol, propylene glycol, glycerin, and pentitol can also be used. This carboxylic acid may also be lower or higher.

(6) Effect of adding swelling polymer substance A swelling polymer substance can be added. It can be seen that this addition shows a stable behavior even at high pressure (200 V), as shown in FIG. 17 (in the case of polyvinylpyrrolidone). That is, it was stabilized at about 44.5 ° C. at 100 V, and also at about 53 ° C. at 200 V. As comparative examples, C and D are indicated by dotted lines in FIG. Examples of the substance include polyvinylpyrrolidone, polyvinyl alcohol, polyacrylamide, polyacrylic acid, starch, soluble starch, cellulose, methylcellulose, carboxymethylcellulose, agar, casein, gelatin and the like. This added amount shows a remarkable effect when only 0.3% is added. Therefore, the steady heating temperature is 36 to
By adding this additive to the composition at about 47 ° C., more stable performance can be provided. These results were measured by fabricating a device by the method described in (5) above.

[Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the electric hand warmer of this embodiment includes a hand warmer 1 and a battery box 2.
Consists of The hand warmer 1 is, as shown in FIG.
1 and a power cord 12 having one end connected to the hand warmer body 11
And a power plug 13 provided at the other end of the power cord 12. The hand warmer body 11 is 15 cm long and 1 horizontal.
It is 5 cm in thickness and 15 mm in thickness, and is used by being sandwiched between clothes in a state as shown in FIG. A power cord 12 is connected to the hand warmer main body 11, and a power plug 13 at the end thereof is inserted into a plug hole 21 of the battery box 2. On the other hand, as shown in FIGS. 3 and 4, the battery box 2 has a plug hole 21, a switch 22, and a belt holder 2.
3 is provided. In the battery box 2, nickel-metal hydride batteries (six batteries of 1.2V and 2800mAh are connected in series and used as 7.2V) are accommodated. Also,
The battery box 2 is held by a belt holder 23 as shown in FIG.
As shown in FIG. 1, it can be attached to a belt such as pants (the belt is not shown in FIG. 1).

As shown in FIG. 5, the hand warmer main body 11
Between the two resin sheets 33 formed of vinyl chloride (preferably, soft vinyl chloride), a self-temperature-regulating type planar heating element 112 and a back side (a side opposite to the side facing the body surface) are disposed. In a state where the heat insulating material 113 for preventing heat radiation is sandwiched, the peripheral portions of both resin sheets 33 are joined by heat fusion or the like. This self-regulating type planar heating element 1
12, the comb-shaped electrode 112b
, And the thermosensitive electrical resistance composition 112a is disposed therebetween, and both surfaces are sandwiched between polyethylene terephthalate films 112c and 112c having a nonwoven fabric bonded to the inner surface, as shown in FIG. It has a configuration. Then, the heat-sensitive electric resistance composition 112a at that time is obtained by uniformly dispersing carbon powder (graphite powder, manufactured by Yoneyama Pharmaceutical Co., Ltd.) in polyethylene glycol (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., molecular weight: about 2,000, melting point: 49 ° C.). It was made.

In the case where the distance between the adjacent thermosensitive electric resistance compositions 112a separated by the electrode 112b is large and the temperature distribution unevenness on the surface of the hand warmer main body 11 becomes large as it is, the above one film 112c
Then, heat generated by the thermosensitive electrical resistance composition 112a can be dispersed by bonding or affixing an aluminum foil or the like.

In this case, the carbon powder to be dispersed in polyethylene glycol may be in various forms. For example, the carbon powder can be widely used from amorphous carbon black to crystalline graphite. ~ 3
It is preferable to set within the range of 3% by weight. However, carbon powder having a small bulk specific gravity such as acetylene black is
It is preferable that the mixing ratio is set low, and the carbon powder having a large bulk specific gravity such as graphite is set to have a high mixing ratio.
Even in the case of 5% by weight or more and less than 25%, and more than 33% by weight and 45% by weight or less, as described above,
The desired steady-state heating temperature of 36 to 47 ° C, preferably 38 to 43 ° C, can be adjusted by the amount of graphite, the molecular weight of PEG, and the addition of water.

The self-regulating type planar heating element 112 thus configured is characterized in that the molecular weight of polyethylene glycol is appropriately set in a range of, for example, about 500 to 20,000, so that the skin is not hot even when touched. In that the heat generation temperature can be set arbitrarily. In addition, the fluctuation of the heat generation temperature is much smaller than that of the conventional PTC heater, the heat effect is stabilized over the entire surface of the element, and a thermostat for temperature control is not required.

Further, the self-temperature-adjustable planar heating element 11
2 is 10 to 50 seconds (especially 10 to 30 seconds) after turning on the power
Then, since the temperature reaches 40 ° C. where the user can feel warmth, the device can be used immediately. That is, when six 1.2 V storage batteries are connected in series and used at 7.2 V, the time to reach 40 ° C. can be 10 seconds to 30 seconds. Furthermore,
When used while worn on the body, it can be used for as long as 8 hours per charge. That is, 2800 mA
h, when a 7.2 V storage battery is used, the storage time can be 8 hours or more (for example, 8 to 12 hours).

Further, since the voltage supplied by the nickel-metal hydride battery is 7.2 V, even if a leakage occurs from the hand warmer body 11 or the power cord 12, the influence on the human body is small, and the safety is reduced. high. If such a hand warmer main body 11 is used, it is not necessary to feel cold due to a wide range of stable warming effect of the hand warmer main body 11, and it is possible to warm the body core in a short time by the far infrared ray effect.

In the present invention, the present invention is not limited to the specific embodiments described above, but may be variously modified within the scope of the present invention according to the purpose and application. That is,
A self-temperature-adjustable planar heating element 112 is sandwiched between two resin sheets 33 made of vinyl chloride, and both resin sheets 3
3 is not limited to the peripheral portion joined by heat fusion or the like,
Another synthetic resin such as polyethylene may be used for joining. Further, as in the second embodiment of the present invention shown in FIG. 8, the self-temperature control type planar heating element 112 is made of castor oil-based polyurethane or silicone rubber. Insert molding may be used. Further, when coated with a resin, a film made of a rubber-based material may be formed on one surface to provide flexibility. In addition, the size, shape, and the like of the heating element are not particularly limited, and the surface of the heating element may be an uneven surface instead of a smooth surface. Furthermore, not only a heat insulating material layer but also a light-heat reflecting layer (metal layer)
Can also be provided to reduce heat dissipation and improve the efficiency of heating the residence.

As shown in FIGS. 21 and 22, the storage battery 24 may be provided in the main body 11 of the hand warmer. The electric hand warmer shown in FIG. 21 is connected to a charging cord via a connection terminal 25, and is charged by receiving power from a home AC power supply via the charging cord and an AC adapter. At the time of charging, the circuit to the self-temperature adjusting type planar heating element 112 is cut off by the circuit switcher 26, so that the self-temperature adjusting type planar heating element 112 does not generate heat.

The electric hand warmer shown in FIG. 22 is an electric hand warmer having a storage battery 24 in the hand warmer main body 11, similarly.
The storage battery 24 can be taken out. FIG.
Is a state where the lid 17 is opened, and when the lid is closed, it is fixed by the hook-and-loop fasteners 27a and 27b.
The storage battery 24 is taken out at the time of charging. At that time, the electric hand warmer can be used without interruption by replacing the spare charged storage battery. Here, other fasteners such as buttons and hooks can be used instead of the hook-and-loop fasteners 27a and 27b. In addition, the storage battery 24 may be arranged at the center of the hand warmer main body 11. By doing so, the position of the center of gravity is located near the center of the hand warmer main body, and it is less likely to shift during use.

Further, as shown in FIG.
Can also be used. The band-like body 4 has a pocket-like shape and has a heating element housing portion 41 for housing the hand warmer body 11.
And a storage battery storage section 42, which is also in the form of a pocket and stores the storage battery 24, and an expansion / contraction section 43 which is connected to the heating element storage section 41 and the storage battery storage section 42 so as to be extendable and contractible.
A fixing portion 44a which is a hook-shaped surface fastener provided at one end of the belt-shaped body 4; and a ring-shaped surface fastener provided on the back surface of the expansion / contraction portion 43 opposite to the fixing portion 44a with the heating element housing portion 41 interposed therebetween. And a fixing portion 44b.

The user, as shown in FIGS. 24 and 25,
The belt-shaped body 4 is wound around the waist, and the fixing portion 44a and the fixing portion 44
By attaching b to each other, the hand warmer main body 11 is fixed to the waist and used. By adopting such an aspect, the user can use the hand warmer in a stable state regardless of clothes.

The heating element housing section 41 and the storage battery housing section 42 may have not only a mode having an opening as shown in FIG. 23 but also a mode having an opening in a horizontal direction. Here, the direction in which the user is upright in the upright state is defined as “up” of the belt-shaped body 4. The same applies to the term “horizontal direction”.

When the hand warmer body 11 and the storage battery 24 are horizontally long, it is better to hold the opening horizontally and insert the hand warmer body 11 and the storage battery 24 in the horizontal direction (longer dimension). The insertion distance can be increased in the body, and the hand warmer body 11 and the storage battery 2 can be stably provided by friction.
4 can be held. That is, even when the user is used in various postures such as when the user is lying down, the hand warmer main body 11 and the storage battery 24 rarely come out of the heating element storage section 41 and the storage battery storage section 42.

Further, the heating element housing 41 and the storage battery housing 42 can be provided with lids, so that the possibility of the fall of the main body 11 and the storage battery 24 can be further reduced. Further, the storage battery housing section 42 may be an independent bag-like mode that can be attached to an appropriate place of the belt-shaped body 4 by a hook-and-loop fastener. By adopting such an embodiment, the user can place the storage battery storage section 42 in an appropriate place that does not get in the way, even if the user is lying down on either side or using a daypack or a waist porch. Can be attached. In addition, since a flexible hook-and-loop fastener is used, even if the user lays down with the hook-and-loop fastener part where the storage battery accommodating part 42 is not attached, the user may feel a strange feeling like a button or the like. There is no feeling.

Further, a plurality of heating element housing portions 41 may be provided so that a plurality of hand warmer bodies 11 can be attached. By doing so, the user can use the hand warmer for a more preferred place and a preferred area.

The castor oil-based polyurethane resin mat covering the outer periphery of the planar heating element 112 is manufactured as follows. First, a stock solution of castor oil-based polyurethane 3 prepared by blending a polyol derived from castor oil (manufactured by Ito Oil Co., Ltd .: trade name “URICH”) with a polyisocyanate (eg, TDI) and mixing and stirring for several minutes.
1 (see FIG. 7) is injected into the mold 32 in a predetermined amount. still,
A prepolymer obtained by reacting a polyol derived from castor oil with an isocyanate (manufactured by Ito Oil Co., Ltd .:
An undiluted solution in which a trade name “URINIC” and a catalyst are blended can also be used.

In the molding die 32, the sheet heating element 112 is set in advance in a state of being floated horizontally together with the heat insulating material 113, and the undiluted solution 31 of castor oil-based polyurethane is poured into the molding die 32.
By injecting a predetermined amount into 2, the planar heating element 112 is positioned at the center of the castor oil-based polyurethane stock solution 31. In this state, if left at room temperature for about one hour,
The stock solution 31 of the castor oil-based polyurethane started to harden, and after about 15 hours, it was completely hardened, and the self-temperature-adjustable planar heating element 112 was inserted into the castor oil-based polyurethane resin mat 111 together with the heat insulating material 113. The hand warmer main body 11 is completed.

The castor oil-based polyurethane resin mat 111 manufactured in this manner is extremely easy to manufacture, has excellent waterproofness and moistureproofness, and has flexibility (deformability).
There is good touch, less deterioration, and stable water and moisture resistance can be maintained over a long period of time. By insert-molding the self-temperature-regulating type planar heating element 112 in such a castor oil-based polyurethane resin mat 111,
The waterproof measures against the self-temperature-regulating type planar heating element 112 are made thorough, the manufacture of the hand warmer body 11 is facilitated, and the feel of the hand warmer body 11 is improved.

As shown in FIG. 19, the coin-type battery 1 is placed on the coin-shaped self-temperature-adjustable planar heating element 112.
6, a coin-shaped portable far-infrared radiation heating body may be integrated. This coin-type portable far-infrared radiation heating element is composed of a heating element 112, an insulating plate / battery holding plate 14, a coin-type battery 16, and an electrode / battery holding member 15, in that order. The electrode 141 is fixed. The coin-type battery 16 is not limited to a rechargeable storage battery (a nickel-metal hydride battery, a lithium-ion battery, a sealed lead storage battery, etc.), but may be a primary battery such as a manganese dry battery.

The heating element 112 includes two spiral electrodes 1
12b are opposed to each other, and the
2a, and the front and back sides thereof are arranged as shown in FIG.
It is configured so as to be sandwiched between polyethylene terephthalate films 112c having a nonwoven fabric bonded to the inner surface (see FIG. 20). The end of the electrode 112b is exposed from the film 112c to supply power, and is formed as electrodes 112h and 112l. The electric connection between the coin-type battery 16 and the heating element 112 is performed by using an electrode 112b in which a part of the electrode 112b inside the heating element 112 is exposed to the outside and the electrode / battery holder 15 for the outer peripheral portion 1 of the coin-type battery.
61 and the other electrode 112b is exposed 11
2l and the electrode 141, the central part 16 of the coin-type battery.
2 are connected.

In this coin-type portable far-infrared radiation heating body, for example, an adhesive layer such as a double-sided tape is attached to the surface side of the heating element 112, and an adhesive layer and a release paper layer are sequentially formed on the element. An adhesive means-added heat body can be used. This coin-shaped heating element is used to perform local heating by using a peeling layer that is peeled off and adhered to a predetermined place to be heated (eg, on the acupuncture point of the body or on clothing positioned on the acupointing point). Can be moxibustion. Further, by providing a heat insulating material layer as shown in FIG. 5 or further providing a light-heat reflecting layer (metal layer), it is also possible to efficiently heat a local part or the like.

The shape of the coin-type portable far-infrared radiation heating body is not limited to a disk-shaped coin shape as shown in FIG. 19, but may be any planar shape such as a square or an ellipse. Also, a clip may be provided on the coin-type portable far-infrared radiation heating body, and the clip may be used in a pocket or the like by using the clip. Further, a switch may be provided so that the power can be turned on and off.

Further, the self-temperature control type planar heating element 112
Is not limited to the arrangement in which the electrode 112b is opposed to the heat-sensitive electric resistance composition 112a in a comb shape.
The electrode 112b may be joined to one side or both sides of the substrate or printed. Furthermore, an insulating layer may be provided on one electric composition layer / electrode layer, and another electric composition layer / electrode layer may be formed on the insulating layer to form a laminated heating element.
In this case, one can be a high-temperature composition and the other can be a low-temperature composition, and can be switched between high and low temperatures.

Also, the self-temperature control type planar heating element 112
Can also be configured as follows. For example, a thermosensitive electric resistance composition layer 112a is formed on a polyethylene terephthalate film 112c having a nonwoven fabric bonded to an inner surface thereof, and an electrode layer 112b is formed thereon by printing in a comb shape, and the nonwoven fabric is formed on the inner surface on this surface. The joined film 112c made of polyethylene terephthalate can be joined. The electrode layer 112b can be formed between the layers of the thermoelectric resistance composition.
The print can be formed so as to be arranged on both sides of the sheet 12a.

Further, the storage battery is a nickel hydrogen battery,
In addition to the lithium ion battery, a secondary battery such as a sealed lead storage battery or a nickel cadmium battery may be used. When these batteries are employed, they can be manufactured at lower cost than nickel-metal hydride batteries or lithium-ion batteries.
In addition, instead of the storage battery shown in the first to ninth inventions,
A reference example using a primary battery such as a manganese dry battery or an alkaline manganese dry battery, a large-capacity capacitor, a fuel cell, or a generator can be provided.

[0075]

As described above, if the present far-infrared radiation type heating body is used, it can be used many times, and it is safe and can be used in a short time with less fear of fire or burns. Moreover, it is possible to warm the core of the human body in a short time by the far-infrared radiation effect. Further, a thermostat for temperature control is not required, and it operates even at a low voltage, so that it is inexpensive and safe. In addition, a self-temperature control type planar heating element
Those coated with silicone rubber or castor oil-based polyurethane resin are extremely easy to manufacture, have excellent waterproof and moisture-proof properties, have flexibility (deformability), have a soft touch, have little deterioration, and have a long It can maintain stable waterproofness and moistureproofness over a period. Among them, the safety of silicone rubber is particularly high.

Further, the self-regulating type planar heating element which is supplied with electric power by a storage battery such as a nickel-metal hydride battery or a lithium ion battery can be used for a long time and is light in weight. Even if leakage occurs from the mold heating element or the power cord, the effect on the human body is extremely reduced, and safety is maintained. In addition, the far-infrared radiation heating body of the present invention does not burn carbon dioxide on heating, and does not generate carbon dioxide.

Further, the far-infrared radiation type heating body of the present invention is useful for a thermotherapy device, by heating a predetermined part by arranging it on a predetermined part of the body and attaching the same. Further, it can be used by inserting and inserting it in a pocket, shoes, socks, between a body and clothing, or in gloves.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a use state of a portable far-infrared radiation heating body according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a hand warmer main body.

FIG. 3 is an explanatory diagram of a battery box.

FIG. 4 is an explanatory diagram of a battery box.

FIG. 5 is a longitudinal sectional view of a hand warmer main body.

FIG. 6 is a cross-sectional view of the hand warmer main body.

FIG. 7 is a diagram illustrating a molding method of a castor oil-based polyurethane resin mat.

FIG. 8 is a longitudinal sectional view of a hand warmer main body according to a second embodiment of the present invention.

FIG. 9 is a graph showing the relationship between the energizing time and the temperature when the amount of the graphite powder is changed.

FIG. 10 is a graph showing the relationship between the elapsed heating time and the temperature of a composition containing 25% of graphite powder.

FIG. 11 is a graph showing the relationship between the molecular weight of polyethylene glycol and temperature.

FIG. 12 is a graph showing the results of examining the mixing effect of polyethylene glycols having different molecular weights.

FIG. 13 is a graph showing the result of examining the mixing effect of polyethylene glycols having different molecular weights.

FIG. 14: Polyethylene glycols and PEG and PP
4 is a graph showing the relationship between the heating element temperature and the electrical resistance in a block copolymer with G.

FIG. 15 is a graph showing a relationship between a block copolymer of PEG and PPG and temperature.

FIG. 16 is a graph showing the result of examining the effect of adding water.

FIG. 17 is a graph showing the result of examining the effect of adding a swelling polymer substance.

FIG. 18 is a graph showing a relationship between a conduction time and a temperature of a heating element in a conductive substance such as silver.

FIG. 19 is an explanatory view for assembling a coin-shaped far-infrared radiation heating body.

FIG. 20 is an explanatory diagram showing an arrangement state of electrodes of a coin-shaped far-infrared radiation heating body.

FIG. 21 is an explanatory diagram of a hand warmer main body in a mode in which a storage battery is built in a covering portion.

FIG. 22 is an explanatory diagram of a hand warmer main body in a mode in which a storage battery is detachably incorporated in a covering portion.

FIG. 23 is an explanatory view of a band of a portable far-infrared radiation type heating body having a band.

FIG. 24 is a rear view showing a usage mode of a portable far-infrared radiation type heating body having a belt-like body.

FIG. 25 is a front view showing a usage mode of a portable far-infrared radiation type heating body provided with a band.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1; Hand warmer, 11; Hand warmer main body, 111; Castor oil-based polyurethane resin mat, 112; Self-temperature control type planar heating element, 112a; Thermosensitive electric resistance composition, 112b;
112c; polyethylene terephthalate film, 1
13; thermal insulation, 12; power cord, 13; power plug,
14; insulating plate / battery holding plate, 141; electrode, 15; electrode / battery holding member, 16; coin-type storage battery, 17; lid, 2; battery box, 21; plug hole, 22; switch, 23; 24, storage battery, 25; connection terminal, 26; circuit switcher, 27a, 27b; hook-and-loop fastener, 31; undiluted solution of castor oil-based polyurethane, 32; mold, 33; vinyl chloride resin sheet, 4;
1. Heating element housing part, 42; storage battery housing part, 43; telescopic part, 44a, 44b;

Claims (16)

[Claims] 1. A self-temperature-adjustable sheet-like heat generating apparatus comprising: forming a sheet-like heat-sensitive electric resistance composition having a property that electric resistance changes suddenly with an appropriate temperature change in the range of 36 to 47 ° C .; An element, a covering portion covering the self-temperature-controlling planar heating element and made of rubber or resin, a power cord for supplying power to the self-temperature-controlling planar heating element, and a power cord for storing power And a storage battery for supplying electric power to the self-temperature-regulating type planar heating element through the same. 2. The portable far-infrared radiation heating body according to claim 1, wherein the storage battery is a nickel metal hydride battery. 3. The portable far-infrared radiation heating body according to claim 1, wherein the storage battery is a lithium ion battery. 4. The portable far-infrared radiation heating body according to claim 1, further comprising a generator connected to the storage battery and supplying power to the storage battery. 5. The generator according to claim 4, wherein the generator is a wind generator.
The portable far-infrared radiation heating body according to the above. 6. The portable far-infrared radiation heating body according to claim 4, wherein the generator is a human-powered generator that generates electric power by rotating a rotating member by a human. 7. The thermosensitive electrical resistance composition comprises a resin and conductive particles dispersed in the resin, and the resin comprises a polyalkylene oxide containing a plurality of alkylene oxides as a unit structure in a molecule. 7. A portable far-infrared radiation according to any one of claims 1 to 6, wherein the conductive particles are a compound of carbon, metal or metal oxide in the form of powder, fiber or whisker. Mold heating body. 8. The coating portion may be a polyurethane resin obtained by reacting and curing a modified polyol derived from castor oil with a polyisocyanate, or a prepolymer obtained by reacting a modified polyol derived from castor oil with a polyisocyanate. The portable far-infrared radiation heating body according to any one of claims 1 to 7, comprising a cured polyurethane resin or silicone rubber. 9. The portable far-infrared radiation heating body according to claim 1, wherein the storage battery has an electromotive force of 1 to 10 V. 10. A self-temperature-adjustable sheet-like heat generating apparatus having a sheet-shaped heat-sensitive electric resistance composition having a property that electric resistance changes suddenly with an appropriate temperature change in the range of 36 to 47 ° C. and having electrodes. An element, and a coating portion that covers the self-temperature-regulating type planar heating element and is made of rubber or resin;
A coin-type battery for supplying power to the self-temperature-regulating type planar heating element; and a connection portion for electrically connecting the electrode of the self-temperature-regulating type planar heating element to the coin-type battery. A coin-type portable far-infrared radiation heating element characterized by excellent infrared radiation. 11. The coin-type portable far-infrared radiation heating body according to claim 10, wherein the coin-type battery is a storage battery. 12. A self-temperature-adjustable sheet-like heat-generating apparatus comprising a sheet-shaped thermosensitive electric-resistive composition having a property in which the electric resistance rapidly changes in response to an appropriate temperature change in the range of 36 to 47 ° C. An element, and a coating portion that covers the self-temperature-regulating type planar heating element and is made of rubber or resin;
A storage battery for storing power and supplying power to the self-temperature-regulating type planar heating element, wherein the storage battery is installed in the covering portion and has excellent far-infrared radiation. Mold heating body. 13. The portable far-infrared ray according to claim 12, further comprising a connection terminal for connecting a cord for supplying electric power from the outside to the storage battery, wherein the connection terminal is exposed on an upper surface of the covering portion. Radiant heating element. 14. The portable far-infrared radiation heating body according to claim 12, wherein the storage battery is detachably installed. 15. A self-temperature-adjustable sheet-like heat generating device having an electrode and a heat-sensitive electric resistance composition having a property in which the electric resistance changes suddenly with an appropriate temperature change in the range of 36 to 47 ° C. A portable far-infrared radiation type heating element comprising an element and a storage battery for storing electric power and supplying power to the self-temperature-regulating type planar heating element, wherein the heating unit accommodates the self-temperature-regulating type planar heating element. A portable far-infrared radiation type that can be wound around a part of a human body, including a band including an element housing, a storage battery housing that houses the storage battery, and a fixing unit that fixes and couples the other to each other. Heating body. 16. The portable far-infrared radiation type heating device according to claim 15, wherein the storage battery storage section is provided separately from the band-shaped body, and can be attached to an appropriate position on the band-shaped body by a hook-and-loop fastener. body.