JPS59200157A - Heat storage type bed warmer - Google Patents

Abstract

PURPOSE:To contrive to reduce the maintenance cost, to improve the usableness, and to ensure the safety by a structure wherein a heat storage type utilizing electromagnetic induction heating system is employed. CONSTITUTION:A heat storage type ANKA (bed warmer) consists in heating heat storage material 1, which is made of magnetic substance generating heat by electromagnetic heating and covered with heat insulator 2 made of non-magnetic substance, for heat storage and in subsequently and gradually dissipating the heat from the heat insulator 2. Any magnetic heat generating substance will do and generally ferrite, cobalt, magnetite or the like is suitable as heat storage material. Any non-magnetic substance will do and generally ceramic, heat resistant synthetic resin or the like is suitable as solid heat insulator and heat resistant rubber, heat resistant synthetic resin or the like is suitable as flexible or elastic heat insulator. In addition, in order to make the heat storage capacity larger and consequently to keep heat storage effect for a long time, solid-liquid phase transition substance, which is liquefied by heating and solidified by dissipating heat, such as CaCl2.6H2O, CaCl2-MgCl2-H2O, Na2SO4. 10H2O or the like can be employed as another filler 3 to the heat insulator 2.

Description

[Detailed description of the invention] This invention relates to a heat storage type foot warmer.

Conventional heat storage type Ankas are mainly of the type that stores heat by using a heating heat source such as charcoal or electric heating wires on the outside or inside of the heat storage body, and there are also those that use chemical heat materials and those that use solar heat. devised or invented or used. However, with conventional heating heat sources, the heat is gradually transferred only from the side where the heating heat source is, and it takes time for the entire heat storage material to store heat, and when using an external heat source, the heat storage material In addition, there was a considerable amount of heat loss, and it was not sufficient in terms of disaster prevention such as burns and fires.

In addition, those that use chemical heating materials cannot be reused because they can only be used once, and must be replaced with new materials each time they are used, making them expensive and uneconomical.Also, those that use solar heat It cannot be used except on sunny days, and it is thought that it will be used a lot especially in winter, but it is inconvenient because the heat storage time due to exposure to the sun is too long. Therefore, the conventional heat storage type anthers have too many drawbacks, and the electric heating type with a cord is more convenient, so it has been more commonly used.

However, this electric-heating type of anvil also requires a cord to connect to the outlet to supply power, and when in use, the cord may get caught on the body or wrap around the legs or body, which can cause the cord to break or connect to the outlet. There is also the disadvantage that the plug can be pulled out from the outlet, and problems have also arisen from the standpoint of resource conservation and safety, such as forgetting to unplug the plug from the outlet after use.

This invention uses a heat storage type that uses electromagnetic induction heating to eliminate the above-mentioned drawbacks of conventional Anka, and anyone with an electromagnetic induction heater can use it easily and safely. It is a heat storage heat sink that is characterized by the fact that it can be used with a wide variety of heating sources, including high-frequency dielectric heating, depending on the material structure used.

First, due to efficient heat storage by heating the entire heat storage material 1,
In order to reduce maintenance costs, improve ease of use, and ensure safety, the heat insulating material 2 may also be used as a case, which simplifies the structure and reduces production costs. Also, since it can be made light and not bulky, it can be used not only for heat-storage type insulators, but also for heat-retaining devices such as heat-retaining cushions, foot warmers, warmers, horigotatsu foot warmers, etc. .

Examples of the heat storage type heat sink of the present invention are shown below, but the gist of the present invention is not limited thereto.

To explain this based on the drawings, FIG. 1 is a partially cutaway front view showing the first embodiment, in which the heat insulating material 2 made of a non-magnetic material is a heat storage material made of a magnetic material that generates heat by electromagnetic induction heating. The heat storage type annular heat storage type is composed of a material 1 or a heat storage material and other filling material 3, covering all or part of it, and gradually radiates heat from the heat insulation material after heating the heat storage material or the heat storage material and the other filling material. Any magnetic heat-generating substance can be used as a heat storage material, but generally ferrite,
Cobalt, magnetite, etc. are suitable. As insulation material 2,
Any non-magnetic material will do, but in general solid materials such as ceramics and heat-resistant synthetic resins are suitable, and flexible or elastic materials such as heat-resistant rubber and heat-resistant synthetic resins are suitable. It is.

FIG. 2 is a sectional view showing the second embodiment. In order to increase the heat storage capacity and achieve a long-term heat storage effect, the heat insulating material 2 is filled with other fillers 3, such as CaCl2, which liquefies when heated and solidifies when heat is released. 6H2O, CaCl2-MgCl2-H2
The heat storage material is coated with a solid-liquid phase transition material such as O, Na2SO2, 10H2O, etc., and the heat storage material is sufficiently heated by electromagnetic induction heating, etc., and the heat is transferred and stored in the solid-liquid phase transition material.

FIG. 3 is a sectional view showing a third embodiment, in which the heat insulating material 2 is provided with a vacuum cavity to improve the heat insulating effect per unit weight and to reduce the weight of the heat insulating material.

FIG. 4 is a sectional view showing a fourth embodiment, in which a radiant heat reflective coating 4 such as an aluminum coating or a plating coating is provided on the inside or outside of the heat insulating material to improve the heat retention effect.

5 and 6 are cross-sectional views showing the fifth embodiment, in which the heat storage material 1 is formed into an elastic fibrous or cotton-like material, or other filler is formed into an elastic fibrous or cotton material. It is formed by mixing a material that can absorb expansion pressure, such as a foam shape, with a heat storage material. To prevent breakage, inflation pressure can be absorbed by the configuration described above.

As shown in Figure 5, the heat storage material itself is formed into an elastic fibrous or cotton-like shape, or as shown in Figure 6, other fillers are used as expansion pressure absorbing materials such as fibers, cotton, or foam materials. This is a method of absorbing pressure by mixing it with a heat storage material.

FIG. 7 is a cross-sectional view showing the sixth embodiment, in which the exposed part of the heat storage material 1 of the heat insulation material 2 that is not covered partially protrudes to a position facing the outside of the heat insulation material, and is formed by electromagnetic induction. A thermostat is built into the heating device, and the thermostat protrudes up to the top plate so that it can come into contact with the heat storage material protrusion of the heat storage warmer, and the heat storage temperature is set in advance on the thermostat. When the heat storage material reaches that temperature, the thermostat on the heating device is activated and the current is automatically cut off.

FIG. 8 is a sectional view showing the embodiment shown in FIG.
Or, it is provided with a plurality of holes 5 to receive heat transfer information from a thermal probe, etc. to an electromagnetic induction heater, etc. in order to prevent the heat storage material from being destroyed due to abnormal temperature rise due to completion of heat storage or overheating. It has a built-in circuit that interlocks with the current on/off or strength/weakness, and its tip is inserted into the hole to sense the end temperature of heat storage or abnormal temperature, or the hole detects radiation such as infrared rays emitted from the heat storage material. A sensor and a circuit that links the current on/off or strength is built into the electromagnetic induction heating equipment so that when the heat storage end temperature or abnormal temperature rises, the current on the heating equipment side can be cut off or the current or voltage can be weakened. This is what I did.

FIGS. 9 and 10 are partially enlarged cutaway sectional views showing the eighth embodiment, in which the hole 5 is equipped with a valve 6 that closes when heat is released and opens when heat storage is completed. The valve is made of a bimetal or shape memory alloy that deforms in shape due to temperature changes, and the valve opens to release radiation such as infrared rays generated from the heat storage material or other filling material through the hole when heated. The induction heating device has a built-in sensor that detects radiation such as infrared rays, and when the heat storage material finishes storing heat or the temperature rises abnormally, the sensor detects and works in conjunction with this to cut off the current or weaken the current or voltage. It is something that adapts something.

FIG. 9 shows the valve in the closed state when heat is released, and FIG. 10 shows the valve in the open state when heat storage is completed.

FIG. 11 is a cross-sectional view showing the ninth embodiment, in which a gap 7 or a cavity 8 is provided between the heat insulating material 2 and the heat storage material 1 or between the heat insulating material and the heat storage material and other filling material and connected to the hole 5. Thermal expansion of the heat storage material or the heat storage material and other fillings can be absorbed by the gap or cavity between the two.

FIG. 12 is a sectional view showing a tenth embodiment, in which an elastic expansion pressure buffering film 9 is provided between the gap or cavity 8 and the heat storage material 1, and a heat storage material or the like is provided outside the expansion pressure buffering film. It is designed to prevent the heat storage material and other fillers from flowing out or being released.The expansion pressure buffering film is made of heat-resistant synthetic resin, heat-resistant synthetic rubber, etc., and the material is deflected by the thermal expansion volume of the heat storage material, creating gaps or cavities. The part releases the air within the partial contraction through a hole connected to the gap or cavity.

This method is suitable when the heat insulating material is solid and the heat storage material or other filler is liquid or viscous, but it is also suitable for solid materials in the form of powders, particles or fine flakes.

FIG. 13 shows an eleventh embodiment, in which a liquid 10 such as water or a solid substance such as wax with a low melting point can be injected into the gap 7 or cavity 8 through the hole 5, and The device is equipped with the valve 6, and the valve 6 opens to release radiation such as infrared rays, steam, gas, etc. generated from the liquid or substance with a low melting point by heating to the outside. A gas sensor and a humidity sensor that detect radiation such as infrared rays, steam, gas, etc. are built in on the same side, and when the heat storage material finishes storing heat or the temperature rises abnormally, the sensor detects and interrupts the current. It is adapted to something that increases current or voltage or weakens current or voltage.

When the heat storage anchor is attached to the top plate of the heater with its holes facing downwards for sensing, it is sufficient to inject only a solid substance, not a liquid, into the gap or cavity.

FIG. 14 is a partially enlarged cutaway sectional view showing the twelfth embodiment, in which a portion of the gap 7 or cavity 8 is heated with a liquid 10 such as water or a solid substance with a low melting point such as wax. A part of the hole 5 is equipped with a pressure valve 11 that is opened by the vapor pressure or gas pressure caused by overheating the liquid or the solid, and a sounding device 12 such as a whistle. In this method, the hole is closed with a pressure valve to prevent the liquid from flowing out, but the liquid or solid substance may turn into water vapor or gas before the heat insulating material is destroyed or damaged due to an abnormal temperature rise in the heat storage material. Pressure is generated and steam or gas is pumped out from the hole, and the sounding device 12 is sounded by the pressure to warn of an abnormality. In addition, a humidity sensor or gas sensor can be installed on the heating device to sense the humidity or gas, and the heating device can control the current by cutting off the current or weakening the current or voltage. The liquid or the solid substance melted by heating may be injected by expanding the pressure valve, or a separate inlet and a stopper may be provided, and after being injected therefrom, a stopper may be provided to prevent it from flowing out.

FIG. 15 is a sectional view showing a thirteenth embodiment, in which the heat insulating material 2 is provided with an automatic heat radiation control valve 13 made of a shape memory alloy, etc., which is closed during heat storage, and is closed during heat radiation. As the temperature gradually decreases, the automatic heat radiation control valve deforms and opens to promote heat radiation.

FIG. 16 is a cross-sectional view showing the fourteenth embodiment, in which the heat insulating material 2 is provided with one or more through holes and a heat radiation control valve 14 provided with one or more holes is attached above or below it and then slid. The heat storage material or the heat radiation from the heat storage material and other filling material can be adjusted by making it movable and adjusting the size of the hole where the through holes of the two mesh with each other. The heat radiation control valve is preferably provided with a protruding portion or an uneven portion so that it can be operated by holding it with a finger.

FIG. 17 to FIG. 21 are cross-sectional views showing the fifteenth embodiment, in which the heat insulating material 2 or the heat insulating material and the heat storage material 1 or the heat insulating material and the heat storage material and other fillings 3 are deformed to form the inner heat storage material or It is constructed so that the heat storage material and other fillings can be exposed to the outside, and can be separated using a bend-resistant hinge part 15 made of polypropylene resin, etc., and the exposed heat storage material can be used, for example, with firewood or charcoal. It can be heated using solid fuels such as briquettes and wax, gas, petroleum, and other heat sources such as solar heat, electric heating wires, and weak laser beams, and the heat insulating material is made of heat-resistant materials such as ceramics. Appropriate. Figures 17 and 18 show the state in use;
9, FIG. 20, and FIG. 21 show the state during heat storage, and the heating heat source 16 may be placed on the side facing the heat storage material. In FIG. 21, the exposed side of the heat storage material is placed upward to absorb solar heat. Furthermore, if the exposed surface of the heat storage material is heated with an electric heating wire or an electromagnetic induction heater toward the heating heat source, the heat storage speed becomes faster and it becomes convenient for efficient heat storage.

FIG. 22 is a sectional view showing the 16th embodiment, in which the heat insulating material 2 is provided with a movable part 17, and the heat storage material 1 or the heat storage material 1 and other fillings can be attached and detached to the outside and exposed. ,
This method also uses solid fuel such as wood, briquettes, charcoal, and wax, gas,
Heat can be stored using fuels such as oil, solar heat, heating wires, weak laser beams, and other heat sources. FIG. 22 shows a state in which the heat storage material or the heat storage material and other fillers are exposed.

FIG. 23 is a sectional view showing the 17th embodiment, in which the exposed portion of the heat insulating material 2 that does not cover the heat storage material 1 is equipped with a heat-sensitive sheet 18 such as a liquid crystal display that changes color due to heat sensitivity, or a thermometer. This allows the temperature state of the heat storage material or the heat storage material and other fillings to be seen at a glance from the outside. Further, in order to improve heat retention, the heat-sensitive sheet may be further covered with a transparent resin, transparent glass, or the like.

FIG. 24 is a sectional view showing the 18th embodiment, in which the heat storage material 1 or other filling material 3 is a magnetized magnetic material, and the synergistic effect of the heat retention effect and the magnetic effect on the human body helps to improve health. It is something.

FIG. 25 is a sectional view showing the nineteenth embodiment, in which the heat storage material 1 or other filling material 3 is a cold storage material, which is used as an insulator in the winter and as a cooling pillow in the summer. When you go to bed, you tend to have trouble falling asleep, but this is because your head continues to be active even when it's time to go to bed, and your blood concentrates, resulting in blindness, which cools your head and reduces brain activity. This can be resolved by
It is suitable for such uses. It is also convenient as a cold storage device for medicines and other items. Cooling can be done by placing it in the refrigerator or by placing it in ice cubes.

FIG. 26 is a sectional view showing a twentieth embodiment, in which the heat insulating material 2 is made of a material that transmits high frequency waves, and the heat storage material 1 or other filling material 3 is made of a material that absorbs high frequency waves and generates heat, and is heated by high frequency heating. It is a device that can be placed in a container to perform high-frequency dielectric heating, and the heat storage material can be ferrite, etc., and the other filling material can be any material that can be dielectrically heated by high frequency, but ferrite, silicon carbide, etc. , tin oxide, etc. are suitable.

FIG. 27 is a cross-sectional view showing the 21st embodiment, in which the filling contains a substance such as norbornadiene that can store light energy and use it as a thermal energy source by temporarily changing the structure of the compound, and a trace amount of silver and other materials. It is made of a catalyst such as cobalt, and can also utilize light energy such as sunlight.

FIG. 28 is a cross-sectional view showing the 22nd embodiment, in which the heat insulating material 2 is a heat storage material 1 or other filler 3 or other substance, a power plug 19 and a heater 20, and a plug such as a power cord. It is also possible to supply power by putting it in a heater and storing heat by heating it with a heater. still,
A thermostat may be attached to a part of the current circuit so that the current is turned off or the current or voltage is weakened when heat storage is completed.

FIG. 29 is a partially cutaway side view showing the 23rd embodiment, in which the outer periphery of the heat insulating material 2 is further covered with a case 2 made of a non-magnetic material.
1 is removably attached or fixed, and various beautiful patterns, pictures, etc. can be expressed on the surface of the appliance as a living appliance, and the appearance can be designed in various figurative shapes.

30 to 32 are cross-sectional views showing the 24th embodiment, in which a chemical heat material or the like can be loaded between the heat insulating material 2 and the heat storage material 1, the heat insulating material and the heat storage material, or other filling material 3. A loading section 22 is provided, and this is an application of the fifteenth or sixteenth embodiment. Chemical thermal materials are effective in maintaining heat retention for long periods of time and at high temperatures as an auxiliary thermal insulation heat source during severe cold weather. It is also useful for keeping warm in places where there is no heating source.

As described above, the heat storage type anther of this invention is based on a simple method of utilizing heat storage through electromagnetic induction heating, and is also widely compatible with all other heat sources such as high frequency dielectric heating by changing the shape and selecting the material. It is convenient because it can be used safely and securely without any cords, and there is little loss of resources.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing the first embodiment of the present invention, FIG. 2 is the second embodiment, FIG. 3 is the third embodiment, and FIG. 4 is the fourth embodiment.
5 and 6 are cross-sectional views showing the fifth embodiment, FIG. 7 the sixth embodiment, and FIG. 8 the seventh embodiment, respectively. FIGS. 9 and 10 are partially enlarged cutaway sectional views showing the eighth embodiment. Fig. 11 shows the 9th, Fig. 12 shows the 10th, and 13th.
The figure is a sectional view showing each of the eleventh embodiments. 1st
FIG. 4 is a partially enlarged cutaway sectional view showing the twelfth embodiment. Figure 15 is the 13th, 16th is the 14th, Figure 17 to Figure 21 is the 15th, Figure 22 is the 16th, 23rd.
The figure shows the 17th figure, the 24th figure shows the 18th figure, and the 25th figure shows the 19th figure.
FIG. 26 is a sectional view showing the 20th embodiment, FIG. 27 is the 21st embodiment, and FIG. 28 is the 22nd embodiment. 29th
The figure is a partially cutaway sectional side view showing the twenty-third embodiment. FIG. 30 to FIG. 32 are cross-sectional views showing the twenty-fourth embodiment. 1... Heat storage material, 2... Heat insulating material, 3... Other filler, 4... Radiant heat reflective coating, 5... Hole, 6... Valve, 7... Gap, 8... Cavity, 9... Expansion pressure buffer coating, 10... Liquid , 11...pressure valve,
12... Sound device, 13... Automatic heat radiation control valve, 14... Heat radiation control valve, 15... Hinge part, 16... Heating heat source, 17... Movable part,
18...Thermal sheet, 19...Power plug, 20...Heater, 21...Case, 22...Loading section Patent applicant Katsuhiro Ishida

Claims (24)

[Claims] (1) The heat insulating material (2) made of a non-magnetic material covers all or part of the heat storage material (1) made of a magnetic material that generates heat by electromagnetic induction heating, or the heat storage material and other fillings (3). A heat-storage type hot water bath that gradually radiates heat from the heat-insulating material after being heated and stored in the heat-storage material (1) or the heat-storage material and other fillings. (2) The heat storage type hot water bath according to claim 1, wherein the other filler (3) is a solid-liquid phase transition material that liquefies when heated and solidifies when heat is released. (3) The heat-storage type heat sink according to claim 1 or 2, wherein the heat insulating material (2) is provided with a vacuum cavity. (4) The heat insulating material (2) is provided with a radiant heat reflective coating (6) such as an aluminum coating or plating coating on the inside or outside of the heat insulating material (2). Heat storage type Anka. (5) The heat storage material (1) may be formed into an elastic fibrous or cotton-like shape, or the other filler (3) may be formed into an elastic fibrous, cotton-like, foamed, etc. material under expansion pressure. 4. A heat-storage-type anther according to any one of claims 1 to 4, which is formed by mixing an absorbing material with a heat-storage material. (6) The exposed portion of the heat storage material of the heat insulating material (2) that is not covered partially projects to a position facing the outside of the heat insulating material. Thermal storage type Anka described in section. (7) The heat-storage type hot water bath according to any one of claims 1 to 6, wherein the heat insulating material (2) is provided with one or more holes (6). (8) The heat storage type anther according to claim 7, wherein the hole (5) is equipped with a valve (6) that is closed when heat is released and opened when heat storage is completed. (9) There is a gap (8) between the heat insulating material (2) and the heat storage material (1) or the heat insulating material and the heat storage material or other filling material.
Alternatively, the heat storage type heat sink according to claim 7, wherein a cavity is provided and connected to the hole (5). (10) Between the gap (7) or cavity (8) and the heat storage material (
1), an elastic expansion pressure buffering film (9) is provided between the expansion pressure buffering film (9) and the heat storage material or other filler is formed to prevent the heat storage material or other filler from flowing out or being released outside the expansion pressure buffering film. Thermal storage type anther as described in item 9. (11) A patent claim in which a liquid (10) such as water or a substance with a low melting point is injected into the gap (7) or the cavity (8) through the hole (5) and the valve (6) is installed. Thermal storage type anther according to item 8. (12) A liquid (10) such as water is injected into the gap (7) or the cavity (8) with a part remaining, and a part of the hole (5) is filled with vapor pressure due to overheating of the liquid. 9. A heat storage type hot water tank according to claim 9, which is equipped with a pressure valve (11) that is opened by a pressure valve (11) and a sounding device (12) such as a whistle. (13) The heat insulating material (2) is a heat storage type valve according to any one of claims 1 to 12, which is equipped with an automatic heat radiation control valve (13) made of a shape memory alloy or the like. mosquito. (14) The heat insulating material (2) is provided with one or more through holes, and a heat radiation control valve (14) provided with one or more through holes is attached above or below the heat insulating material (2) so that it can be slid. . . . 13. A heat storage type heat sink according to any one of claims 1 to 12, in which the size of the interlocking hole between the two through holes can be adjusted. (15) The heat insulating material (2) or the heat insulating material and heat storage material (1)
Alternatively, the heat insulating material, heat storage material, and other filling material (3) has a structure in which the inner heat storage material or the heat storage material and other filling material can be exposed to the outside by deformation. Thermal storage type anther mentioned in any of the sections. (16) The heat insulating material (2) is provided with a movable part (17), and the heat storage material (1) or the heat storage material and other filling material (3) can be attached and removed inside and out and exposed. A heat storage type heat sink as described in any one of Items 1 to 14. (17) The heat insulating material (2) is provided with a heat-sensitive sheet (18) or a thermometer that changes color or appears in color due to heat sensitivity on the exposed portion of the heat storage material (1) that is not covered. A heat storage type heat sink as described in any one of Items 1 to 16. (18) The heat storage material (1) or other filler (3)
is a magnetized magnetic material, Claims 1 to 1
A heat storage type anther as described in any of Section 7. (19) The heat storage material (1) or other filler is
19. A heat storage type heat sink as claimed in any one of claims 1 to 18, which is a cold storage material. (20) The heat insulating material (2) is a material that transmits high frequency waves, and the heat storage material (1) or other filling material (3) is a material that absorbs high frequency waves and generates heat. A heat-storage type heat sink as described in any of Item 19. (21) A patent claim in which the other filler (3) is composed of a substance such as norbornadiene that stores light energy and can be used as a thermal energy source by temporarily changing the structure of the compound, and a trace amount of a catalyst such as silver or cobalt. A heat storage type heat sink according to any one of items 13 to 20. (22) The heat insulating material (2) is a power plug and a heater as a heat storage material (1), other filler, or other material. Heat storage type Anka. (23) The heat storage type heat sink according to any one of claims 1 to 21, wherein the outer periphery of the heat insulating material (2) is further covered with a case (21) made of a non-magnetic material. . (24) A loading section (22) into which a chemical heat material etc. can be loaded is provided between the heat insulating material (2) and the heat storage material (1) or the heat insulating material and heat storage material or other filling material (3). A heat storage type heat sink according to claim 15 or 16.