JP4474719B2 - Cold storage heat generator and flexible heating / cooling body using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a regenerative heat storage body that directly contacts a human body, such as a pillow or a pillow, and provides a comfortable thermal sensation to the human body, and a flexible heating / cooling body using the same.
[0002]
[Prior art]
For example, in the case of a dakimakura, this type of flexible structure 30 of the related art includes, as shown in FIG. 32 was filled. Dakimakura is essential to give the body a body or to hug it to give the human body a sense of relief and promote sleep. Flexibility was essential.
[0003]
[Problems to be solved by the invention]
However, in the conventional flexible structure described above, since the cushion material generally has a heat insulating property, the body temperature is increased in summer use, and it is rather uncomfortable unless it is used in combination with room cooling. Moreover, since the space in the futon increases due to the body pillow when used in the winter, it takes time until the inside of the futon is warmed up, resulting in poor sleep.
[0004]
An object of the present invention is to provide a regenerative heat storage body that can be applied to pillows and pillows, and that provides a comfortable thermal feeling, and a flexible heating / cooling body.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a cold storage heat body having both a heat storage and a cold storage function for heating and cooling a human body, and a flexible warm body that accommodates this in a flexible hollow body. It is a body.
[0006]
According to the said invention, a cold storage heat body which has a heat storage and a cold storage function can give a human body a feeling of warmth and coldness, and can be set as comfortable sleep.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Cold storage Netsutai of the invention of claim 1 includes a sealed container formed from a synthetic resin or a synthetic rubber, a heat storage capsule heat storage material filled with a melting point of between 45 ° C. from 2 5 ° C., from 10 ° C. 25 A cold storage capsule filled with a cold storage material having a melting point between 0 ° C. and a heat transfer medium composed of a mixture of polypropylene glycol and water, the heat storage capsule, the cold storage capsule, and the heat transfer medium in the sealed container Is filled.
[0010]
Thereby, the heating function can be mainly performed by the heat storage material and the cooling function can be performed by the cold storage material.
[0011]
The regenerator heat body of the invention of claim 2 comprises a regenerator capsule or a regenerator capsule formed by heat fusion of an aluminum laminate film.
[0012]
Thereby, it can be set as the cold storage heat body with high reliability and excellent heat transfer characteristics.
[0013]
According to the third aspect of the present invention, at least the sealed container is made of a transparent and microwave permeable material, and a temperature indicating material is interposed in water or a heat transfer medium.
[0014]
Thereby, while heat storage can be performed with a microwave oven, a heat | fever storage completion or cold storage completion can be notified to a person with a temperature indicating material.
[0015]
According to the fourth aspect of the present invention, the heat storage material is a mixture of sodium acetate trihydrate and sugar alcohol.
[0016]
Thereby, it can be set as the heat storage material which has melting | fusing point between 25 degreeC and 45 degreeC.
[0017]
Cold storage Netsutai of the invention of claim 5, the cold accumulating material formed by a mixture of sodium 10-hydrate and sugar alcohols sulphate.
[0018]
Thereby, while being able to set it as the cool storage material which has melting | fusing point between 10 degreeC and 25 degreeC, the heat-transfer medium at the time of cool storage can be hold | maintained at a liquid.
[0019]
The flexible warming / cooling body of the invention of claim 6 is an opening provided on the surface of the skin material and the cushion material having gas and gas convection inside the skin material and mounted inside the skin material. A flexible hollow body having a concave storage portion extending from the center to the central portion of the cushion material, and a cold storage heat body disposed in the storage portion of the flexible hollow body.
[0020]
Thereby, it can be set as the flexible heating / cooling body which can attach or detach a cool storage heat body, and has a softness | flexibility and a heating / cooling function.
[0021]
The flexible heating / cooling body of the invention of claim 7 is a skin material, a flexible hollow body that is mounted inside the skin material, and holds a cushion material having gas and gas convection inside, and the flexible material A heating / cooling device disposed and held inside the cushioning material of the heat-resistant hollow body and having two heat transfer surfaces of heating and cooling, and the contact with the heat transfer surface of the heating / cooling device and the contact Parts other than a part consist of the cool storage heat body formed by heat insulation.
[0022]
Thereby, cold storage heat can be performed without attaching or detaching the cold storage heat body by a heating / cooling device, and a flexible heating / cooling body having flexibility and a heating / cooling function can be obtained.
[0023]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0024]
Example 1
FIG. 1 is a schematic cross-sectional view illustrating a regenerator 1 according to a first embodiment of the present invention. In FIG. 1, 2 is a sealed container formed of a synthetic resin such as polyethylene and synthetic rubber such as chloroprene, 3 is a hollow container 4 made of synthetic resin, and a weight ratio of sodium acetate trihydrate and mannitol is 6: 4. A heat storage capsule formed by filling the composition (melting point: 40 ° C.) as the heat storage material 5, 6 is water.
[0025]
With this configuration, it is possible to store heat in the heat storage capsule 3 and the water 6 by immersing the cold storage heat body 1 in hot water heated to the melting point of the heat storage material 5 or higher. Moreover, the cold storage heat body 1 can be stored in the water 6 as ice by leaving it in the refrigerator.
[0026]
(Example 2)
FIG. 2 is a schematic cross-sectional view showing the regenerator heat body 7 according to the second embodiment of the present invention. The second embodiment is different from the first embodiment in that a cold storage capsule 8 and a heat transfer medium 9 are provided instead of the water 6. The cold storage capsule 8 is formed by filling a resin container 10 with a composition (melting point 20 ° C.) of sodium sulfate decahydrate and mannitol in a weight ratio of 7: 3 as a cold storage material 11. The heat transfer medium 9 is made of, for example, a mixture of equal amounts of polypropylene glycol and water. In addition, the thing of the same code | symbol as Example 1 has the same structure, and abbreviate | omits description.
[0027]
With this configuration, it is possible to mainly store heat in the heat storage capsule 3 by immersing the cold storage heat body 7 in hot water heated to the melting point of the heat storage material 5 or higher. Moreover, the cool storage heat body 7 can be mainly stored in the cool storage capsule 8 by leaving it in the refrigerator.
[0028]
(Example 3)
In the above embodiment, the containers 4 and 10 of the heat storage capsule 3 and the cold storage capsule 8 are made of resin. However, in this embodiment, as a bag-like container 12 formed by heat-sealing aluminum laminate films, The heat storage material 5 or the cold storage material 11 was filled into the heat storage capsule 3a and the cold storage capsule 8a. FIG. 3 shows the heat storage capsule 3a.
[0029]
With this configuration, the gas / liquid barrier property and thermal conductivity of the aluminum laminate film 12 can be utilized to provide a regenerator with high reliability and excellent heat transfer characteristics.
[0030]
Example 4
At least the material of the hermetic container 2 is microwave permeable material such as polyethylene, polypropylene, ethylene propylene rubber and the like, and the material of the heat storage capsule 3 and the cold storage capsule 8 is preferably a material having an appropriate thickness and visible light permeability. The same material was used. Further, the temperature indicating material was added to the water 6 or the heat transfer medium 9 for use.
[0031]
With this configuration, in Examples 1 and 2, it was shown that heat storage was performed by immersing in warm hot water, but according to this example, heat storage by microwaves can be performed in a microwave oven. The completion of heat storage can be visually determined by the temperature indicating material.
[0032]
(Example 5)
As the heat storage material 5, an equivalent mixture of sodium acetate trihydrate and mannitol was used. FIG. 4 shows the change in melting point when mannitol is added as the second component.
[0033]
With this configuration, the heat storage material 5 having an arbitrary melting point from 25 ° C. to 45 ° C. can be provided. Sodium acetate trihydrate has a high heat of fusion among hydrated salt type heat storage materials, and while taking advantage of this feature, the second component is added to this to lower the melting point by using the freezing point depression. However, as a result of studying various second components, sugar alcohol is not affected by sodium acetate trihydrate which is weakly alkaline (pH 9) and does not inhibit crystallization of sodium acetate trihydrate. I found it effective.
[0034]
In addition to mannitol used in this example, the melting point can be adjusted similarly in the case of sugar alcohols such as erythritol, galactitol, and inositol.
[0035]
(Example 6)
As the cold storage material 11, a 6: 4 mixture (melting point: 20 ° C.) of sodium sulfate decahydrate and mannitol was used.
[0036]
With this configuration, the regenerator material 11 having an arbitrary melting point from 10 ° C. to 25 ° C. can be provided.
[0037]
(Example 7)
FIG. 5 is a schematic sectional view showing the flexible warming / cooling body 13 according to the seventh embodiment of the present invention. 14 is an air-permeable skin material such as cloth, and 15 is a flexible hollow body, which holds a cushion material 16 such as urethane foam having air (not shown) and open cells inside as a gas, and its opening. A concave storage portion 18 is provided inside the portion 17. The regenerator 1 is disposed in the storage unit 18.
[0038]
With this configuration, the regenerative heat of the regenerator 1 is transmitted to the air held in the cushion material 16 via the wall surface 19 of the storage portion 18, and the temperature of the entire flexible hollow body 15 and the skin material 14 is convected by the air. Can be raised or lowered.
[0039]
In addition, although the cool storage heat body 1 was used in the present Example, even if it uses the cool storage heat body 7, there is no problem.
[0040]
(Example 8)
FIG. 6 is a schematic cross-sectional view showing the flexible heating / cooling body 20 according to the eighth embodiment of the present invention. The difference from the seventh embodiment is that a space portion 21 is provided in the cushion material 16, and the heating / cooling surface has two heat transfer surfaces 22 and 23 such as a Peltier element in the space portion 21. The cold storage heat generator 1 is provided so as to be in thermal contact with the cooler 24 and one heat transfer surface 23 of the heater / cooler 24. And the thermal storage part 25 is coat | covered except the thermal contact part with 1 heating and the cooler 24 of the cool storage heat body. The heating / cooling device 24 is energized through the attaching / detaching portion 26.
[0041]
With this configuration, the heating / cooling device 24 can be used for heating and cooling while being energized. For example, the operation for heating is as follows. The temperature of the upper surface 22 of the heater / cooler 24 increases, and the temperature of the lower surface 23 decreases. In the heating / cooling device 24 that is a Peltier element, warm and cold are generated simultaneously. And when warm and cold reach a set temperature difference, warm and cold cannot be generated any more. Therefore, it is normally designed to radiate heat in the hot part and to blow air to the cold part with a blower fan or the like so that the operation is within the set temperature difference. In the present embodiment, the heat generated on the upper surface 22 is used as heating, and the cold generated on the lower surface 23 is stored in the regenerator 1 to ensure the operation state. Further, except for the thermal contact portion of the regenerator heat body 1 with the heater / cooler 24, it is covered with a heat insulating material 25, and the operation of the heater / cooler 24 is within a predetermined amount of regenerative heat of the regenerator heat body 1. Is secured. In the operation for cooling, only the temperature is reversed, and the operation can be continued in the same manner.
[0042]
Next, FIG. 7 shows a schematic cross-sectional view of the flexible heating / cooling body 27 that can be used cordlessly after the cold storage heat. The difference from FIG. 6 is that the regenerator 1 is provided on both heat transfer surfaces of the heater / cooler 24. However, the heat insulating material 25 is not provided in the regenerator body 1 for heating and cooling. With this configuration, the flexible heating / cooling body 27 can be put to practical use in a cordless manner after the heating / cooling device 24 is energized and the cold storage heat body 1 stores the cold heat.
[0043]
In addition, although the cool storage heat body 1 was used in the present Example, even if it uses the cool storage heat body 7, there is no problem.
[0044]
Although not particularly mentioned in the above embodiment, the flexible hollow body 15 is usually designed not to be swollen but to have a margin even at the assumed maximum temperature. Therefore, this point is also taken into consideration in the thickness of the cushion material 16 mounted inside. In addition, the thickness of the cushion material 16 is guaranteed so that an excessive weight exceeding the design withstand pressure is not applied to the cold storage heat generator 1 and the heater / cooler 24 which are internal objects when the heavy load is applied. Moreover, although the enclosure inside the flexible hollow body 15 is gas, it is not necessarily limited to this. For example, a polymer gel prepared by keeping the polymer in a low cross-linked state or adding a thickener such as gelatin or polyvinyl alcohol to a liquid such as water can also be used.
[0045]
【The invention's effect】
As described above, according to the cold storage heat body and the flexible warming / cooling body of the present invention, the following effects are obtained.
[0046]
According to the first aspect of the present invention, it is possible to provide a regenerative heat storage body in which a heat storage capsule and water are enclosed in an airtight container and have both heat storage and cold storage functions.
[0047]
According to invention of Claim 2, the cool storage heat body which has a heat storage and a cool storage function can be provided by the heat storage capsule, the cool storage capsule, and the heat transfer medium.
[0048]
According to invention of Claim 3, it can be set as the cold storage heat body with high reliability and the outstanding heat-transfer characteristic.
[0049]
According to the invention of claim 4, it is possible to provide a cold storage heat body that can store heat in a microwave oven and can determine completion of heat storage.
[0050]
According to the invention of claim 5, a heat storage material having a melting point between 25 ° C. and 50 ° C. can be provided.
[0051]
According to the invention of claim 6, it is possible to provide a cold storage material having a melting point between 10 ° C. and 25 ° C.
[0052]
According to the seventh aspect of the present invention, a flexible heating / cooling body having both a heating / cooling function and flexibility can be provided.
[0053]
According to the invention of claim 8, it is possible to provide a flexible heating / cooling body that can be used cordlessly after the completion of the cold storage heat.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of a cold storage heat generator according to a first embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of a cold storage heat generator according to a second embodiment of the present invention. FIG. 4 is a graph showing the relationship between the composition and the melting point of the heat storage material of Example 5 of the present invention. FIG. 5 is a schematic diagram of the flexible heating / cooling body of Example 7 of the present invention. Sectional view [Fig. 6] Schematic sectional view of a flexible heating / cooling body of Example 8 of the present invention [Fig. 7] Schematic sectional view showing another embodiment of the flexible heating / cooling body [Fig. Schematic sectional view of a conventional flexible structure 【Explanation of symbols】
1, 7 Cold storage body 3 Thermal storage capsule 8 Cold storage capsule 9 Heat transfer medium 13, 20, 27 Flexible heating / cooling body 15 Flexible hollow body 16 Cushion material 24 Heating / cooling device

Claims (7)

A sealed container formed from a synthetic resin or a synthetic rubber, a heat storage capsule heat storage material filled with a melting point of between 45 ° C. from 2 5 ° C., the cold accumulating material having a melting point of between 10 ° C. of 25 ° C. Filling A cold storage heat body comprising: the stored cold storage capsule; and a heat transfer medium composed of a mixture of polypropylene glycol and water, wherein the sealed container is filled with the heat storage capsule, the cold storage capsule, and the heat transfer medium . Heat storage capsules or cold storage capsules consisting constituted by heat sealing of aluminum laminate film according to claim 1 Symbol placement regenerator heat body. Transparent at least sealed container, and thereby made of a material having microwave permeability, cold storage heat body according to claim 1, wherein comprising by interposing a temperature-indicating material in the heat transfer medium. Mixture with claims 1 Symbol placement regenerator heat of the heat storage material with the sodium trihydrate and sugar alcohol acetate. The regenerator heat body according to claim 1 , wherein the regenerator material is a mixture of sodium sulfate decahydrate and sugar alcohol. A skin material and a concave storage portion that is attached to the inside of the skin material, holds a cushion material having gas and gas convection inside, and extends from an opening provided on the surface to a central portion of the cushion material. A flexible heating / cooling body, comprising: a flexible hollow body having the flexible hollow body; and the regenerative heat storage body according to any one of claims 1 to 5 disposed in a storage portion of the flexible hollow body. A skin material, a flexible hollow body mounted inside the skin material, holding a cushion material having gas and gas convection inside, and disposed and held inside the cushion material of the flexible hollow body; and 6. A heating / cooling device having two heat transfer surfaces for heating and cooling, a portion that is in thermal contact with the heat transfer surface of the heating / cooling device, and is insulated from the other portions . A flexible heating / cooling body comprising the cold storage heat body according to claim 1.

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