JP2002061857A - Thermal storage member and thermal storage mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thermal storage member and a thermal storage mat for a bed and a thermal storage mat for heating using the thermal storage agent that a bag body to seal a latent storage agent is divided into a plurality of small bag parts to form a thermal storage agent body, and by situating a plate-form heat transfer material being excellent in thermal conductivity and elasticity on the under surface of the thermal storage agent body, since when the latent heat thermal storage agent is moved and contained, the small bag part is only moved by a slight distance, uneven distribution due to deviation of the latent heat storage agent is limited and by effecting lining by using a flat-form heat transfer material being excellent in thermal conductivity, deformation preventing performance is further improved and thermal efficiency can be improved. SOLUTION: The thermal storage mat comprises a thermal storage member body formed by sealing a bag body, consisting of a plurality of small bag parts, with the thermal storage agent; a flat-form heat transfer material situated on the under surface of the thermal storage member body and having elasticity excellent in thermal conductivity; and a heater unit situated on the under surface of the flat material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage member utilizing the property of releasing heat while maintaining a constant temperature when a substance transforms from a liquid to a solid. A heat storage mat for beds, baseball and rugby that use the generated power to store heat during running of the truck, and radiate heat during a nap and stop to keep the inside of the bed at a comfortable temperature. The present invention relates to a heat storage mat for heating which is suitably used as a cushion for watching sports outdoors in cold weather.

[0002]

[Related Art] At the transformation temperature, a latent heat storage agent that radiates heat is used to store heat with the power generated while a car or the like is running, and heats the body at bedtime. Is described in Japanese Utility Model Laid-Open No. 2-422266.

[0003] This heat storage mat encloses a bag in which a heat storage agent is sealed and an electric heater unit superimposed on the bag in a heat-insulating cushion material, and encloses the bag in a bag-like cover. When energized, heat is used as a heat storage agent,
Heat is stored as latent heat and the mat is kept at a predetermined temperature for a certain period of time by discharging the heat storage agent even if the power is cut off. When stopping and taking a nap, it is not necessary to use the battery as a heat source, so that the battery is not overdischarged and is convenient.

In the heat storage mat, an electric heater unit is superimposed on a plurality of bags enclosing heat storage agents having different transformation temperatures to form a plurality of heating elements having different heating temperatures, and these heating elements are sandwiched. It is formed by enclosing a cushion in a cover. At this time, the bed mat is set to have a higher temperature as it is closer to the foot, so that the bed is comfortable.

As an improvement of the heat storage mat described in Japanese Utility Model Laid-Open No. 2-422266, Japanese Utility Model Laid-Open No. 6-75435 has been proposed. This improved heat storage mat is constructed by enclosing a plurality of flat bags with a latent heat storage agent in which the foot is sequentially larger than the head of the bed, and an electric heater unit is provided on the lower surface of the bag. To form a plurality of heating elements, and provided on the top surface of the bag body a heat insulating cushion whose thickness is inversely proportional to the amount of the heat storage agent stored in the bag body, and a bag-shaped cover (A) a plurality of heating elements having different amounts of heat storage agents are provided, and the upper layer cushion on the side in contact with the body according to the amount of the heat storage agents in each of the heating elements. Since the thickness of the body is adjusted, heating, warmth and cushioning are perfect for bedtime,
(B) Since the amount of the heat storage agent and the thickness of the upper cushion are in inverse proportion, the thickness of each partition bag is kept constant,
(C) Since a plurality of heat storage agents having different transformation temperatures are not used, there is an advantage that the production is easy and the cost is low.

However, in the improved heat storage mat, since the shape of the flat bag is large, the fluid latent heat storage agent sealed therein is unevenly distributed in the bag when the heat storage mat is moved. It takes time to restore the shape to its original shape, and it is inconvenient because it is deformed when folded and stored, and because the bag made of plastic material is directly heated by a heater cord etc. Problems such as poor heating efficiency have occurred.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made in consideration of the above-described problems, and a bag for enclosing a latent heat storage agent is divided into a plurality of small bag portions to form a heat storage member main body. By providing a flat heat transfer material having good thermal conductivity and elasticity on the lower surface of the heat storage member main body, the latent heat storage agent moves only slightly in the small bag portion even when moving or storing. Deformation due to the uneven distribution of the heat storage agent is limited, and the heat storage member is made of a flat heat transfer material having good thermal conductivity and elasticity, thereby further improving the deformation prevention performance and improving the thermal efficiency. It is another object of the present invention to provide a bed heat storage mat and a heating heat storage mat using the heat storage member.

[0008]

In order to solve the above-mentioned problems, a heat storage member of the present invention comprises: a heat storage member main body in which a latent heat storage agent is sealed in a bag comprising a plurality of small bags;
The heat storage member comprises a flat heat transfer material having good thermal conductivity and elasticity provided on the lower surface of the heat storage member main body, and a heater unit provided on the lower surface of the flat material.

The thermal storage mat for a bed according to the present invention is used for a napping bed such as a truck, etc., and has a plurality of bag-shaped cover members provided with a storage portion therein and sequentially arranged from the head toward the foot. And the above-described heat storage member of the present invention stored in the storage portions.

The heat storage mat for heating according to the present invention is used as a cushion for watching sports outdoors in cold seasons such as baseball and rugby, and has a bag-shaped cover member provided with a storage portion therein. And the above-described heat storage member of the present invention stored in the storage section.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. However, various modifications other than the illustrated examples are possible without departing from the technical idea of the present invention. Not even.

1 and 2, the heat storage member (6) of the present invention comprises a plurality of latent heat storage agents (10) (3 in the illustrated example).
The heat storage member main body (6A) is sealed in a bag body (9) composed of small bags (6a), (6b), and (6c). The bag (9) is formed of a strong film made of synthetic resin, and the small bag portions (6a), (6b) and (6c) are joined to each other by dividing the divided portions (H) of the bag portion (9) by heat sealing or the like. Formed by The latent heat storage agent (10) has a sodium acetate-based heat storage agent main body (10a) having a large latent heat and an impregnated base material (11) such as polyester felt.

On the lower surface of the heat storage member main body (6A), a flat heat transfer material (18) having good thermal conductivity and elasticity is provided. A metal material such as stainless steel is preferably used as the flat heat transfer material (18).

(12A) is a heater unit for heating the heat storage member (6) via the plate-shaped heat transfer material (18), and is bent in a meandering shape in which the heating wire is covered with a heat-resistant insulating material such as silicon rubber. The cord-shaped cord heater (12) is covered with an aluminum foil (13) coated with an adhesive and provided on the lower surface of the plate-shaped heat transfer body (18) by adhesion or the like.

The transformation limit of the heat storage agent (10) of the heat storage member (6) can be set to a desired temperature, but when used for heating, it is preferably around 50 ° C.

The code heater (12) of the heat storage member (6)
When electricity is supplied to the heat transfer member, the generated heat heats the flat heat transfer material (18), and then heats the heat storage agents (10) in the small bag portions (6a) (6b) (6c). When each heat storage agent (10) is heated, the heat is liquefied and stored as latent heat, and even when power supply to the code heater (12) is cut off, the stored heat is stored while the heat storage agent (10) is solidified. Releases for a long time heating action.

FIGS. 3 to 5 show an example in which the heat storage member of the present invention is applied to a mat (B) of a napping bed of a truck, and a cloth bag-like cover (1) has three pieces. By the partition line (2), four partition bags (1a) (1b) (1
c) Partitioned into (1d), and each partition bag (1a) (1b)
(1c) and (1d) enclose an upper cushion (3) made of a polyurethane foam that is soft, elastic and highly heat insulating, and a lower cushion (4) made of a polyurethane chip that is slightly hard and highly heat insulating. The storage portions (3a) (3b) (3c) (3d) are formed between the two.

The mat is used with the left side as the head and the right side as the foot. The leftmost partition bag (1a) has a slightly harder core material (5) and a thicker upper cushion (3) and lower cushion. It is sandwiched in the storage section (3a) between (4).

From the left to the right (1b) (1
c) In (1d), a first heat storage member (6), a second heat storage member (7), and a third heat storage member (8) are sequentially provided with an upper cushion (3) and a lower cushion (4). Between the storage portions (3b), (3c), and (3d).

Each of the heat storage members (6), (7) and (8) is placed in a flat bag (9) made of a durable synthetic resin film in the same manner as in FIG. It is formed by enclosing a thermal storage agent main body (10a) and an impregnated base material (11) such as polyester felt.

A first feature of the heat storage members (6), (7) and (8) of the present invention is that a plurality (three in the illustrated example) of the bags (9) are provided.
(6a) (6b) (6c) (7a) (7b)
It is divided into (7c), (8a), (8b) and (8c), and the second feature is that each heat storage member (6)
(7) A flat heat transfer material having good thermal conductivity and elasticity is disposed on the lower surface of (8) by bonding or the like. A metal material such as stainless steel is preferably used as the flat heat transfer material (18).

A heater unit (12) for heating the heat storage members (6), (7) and (8) via the flat heat transfer material (18).
A) is a cord-shaped cord heater (1) in which a heating wire is covered with a heat-resistant insulating material such as silicon rubber and is bent in a meandering shape.
2) is covered with an aluminum foil (13) coated with an adhesive, and is adhered to the lower surface of the plate-shaped heat transfer body (18).

The transformation temperature of the heat storage agent (10) of each of the heat storage members (6), (7) and (8) is suitably about 50 ° C., and the heat storage members (6), (7) and (8) are the same. Transformation temperature materials are used.

However, the amount of the heat storage agent (10) in each of the heat storage members (6), (7), (8) is more than 50% to 10% in the second heat storage member (7) than in the first heat storage member (6). About a few more, second
50% or less of the third heat storage member (8) than the heat storage member (7)
About 100% more.

In accordance with the amounts of the heat storage members (6), (7) and (8), the thickness of the upper cushion (3) in each of the partition bags (1b) (1c) (1d) is measured in inverse proportion. The more the number, the thinner. That is, each heat storage member (6)-
(8) The upper layer cushion (3) is designed so that the larger the volume and weight and the larger the amount of stored heat, the lower the heat retention in inverse proportion to the amount and the faster the heat can be released to the body. It is getting thinner.

Temperature switches (14) are provided at key points of the code heaters (12) of the heat storage members (6), (7), (8), and both ends of each code heater (12) are connected to a power cord (15). ), A connector (16) and a plug (17), so that it can be connected to a power source such as a cigarette lighter.

In the above mat, each cord heater
When electricity is supplied to (12), the generated heat first heats the flat heat transfer material (18), and then heats the respective heat storage agents (10) in each pouch.
Heat. When each heat storage agent (10) is heated, the heat or the like is stored as latent heat while liquefying the heat or the like.
Even if 4) is opened or the plug (17) is pulled out of the power supply and the power is cut off, the stored heat is released and the various parts of the mat are heated while the heat storage agent (10) solidifies.

Normally, when the vehicle is running, each cord heater (12) is energized and heated until each heat storage agent (10) is sufficiently liquefied. When the heat storage agent (10) completes heat storage (liquefaction), the temperature of the heat storage agent (10) rapidly starts rising. Due to this temperature rise, the temperature switch (14) is opened, energization is stopped, and the heat storage operation of the heating elements (6), (7), (8) is completed. In this case, when the amount of the heat storage agent is large, it takes time to store the heat.

In use, as shown in FIG. 5, the automobile is stopped and the left partition bag (1a) provided with only the core material (5) on the heat storage mat (B) provided on the nap bed. And the heating elements (6), (7), (8) as heat storage agents (1).
Go to bed with the right side as the leg side, arranged in ascending order of 0). At this time, an appropriate top (C) such as a blanket or a comforter is applied below the shoulder.

The portion of the body which generates a large amount of heat can be easily warmed by keeping its upper portion warm with a cover or the like, so that the heat storage agent (1) of the first heating element (6) corresponding to the chest and abdomen. In 10), the amount may be small. In addition, since a sufficient heating effect can be obtained in a portion where the amount of heat generated by the body is large even if the supply speed of heat for heating is low, the thicker upper cushion (3), which is a heat insulating material on the heat radiation side, is preferable. .

Further, the lower surface of the part such as the chest and the belly that covers the heat is on the back, and the thick upper cushion (3) is more comfortable to sleep in this part. The same applies to the portion of the second heat storage member (7), except that the upper cushion (3) is made thinner, the heating speed is slightly increased, and the heat storage amount of the heat storage agent (10) is made larger than that of the back portion. The heating effect is enhanced.

A leg rests on the third heat storage member (8). In this part, the upper cushion (3) is the thinnest,
The heat of the heat storage agent (10) is quickly transmitted to the legs mounted thereon. Although the legs generate less heat as the body, the heat storage agent (10) of the heat storage member (8) stores the largest amount of heat. As a result, the entire body is kept warm on average in terms of calorie, and comfortable sleeping can be performed.

As the heat storage agent (10), polyethylene glycol or the like can be effectively used instead of sodium acetate. The bed heat storage mat (B) of the present invention is not limited to having four partition bags.

In the illustrated examples of FIGS. 1 to 3, the bed heat storage mat has been described, but each heat storage member (6) (7)
It goes without saying that (8) can be applied alone as a heat storage material. For example, as shown in FIG. 6, the heat storage member (6)
Of the partition bag (1b) separated as a single unit (3
If it is configured to be stored in b), it can be used as a heating cushion (D) that can generate heat for a long time as needed. This heating cushion (D) is suitably used as a cushion for watching cold magnetic outdoor sports such as baseball and rugby.

[0035]

As described above, according to the present invention, a bag for enclosing a latent heat storage agent is divided into a plurality of small pouches to form a heat storage unit main body, and the lower surface of the heat storage unit main body is formed. By providing a flat heat transfer material having good thermal conductivity and elasticity, the latent heat storage material moves only a small distance in the small bag when moving or storing, so the latent heat storage material is unevenly distributed. As a result, it is possible to achieve the effect of further improving the deformation prevention performance and improving the thermal efficiency by backing with a flat heat-transfer material having an elasticity with good thermal conductivity and an extremely high thermal conductivity.

[Brief description of the drawings]

FIG. 1 is an explanatory top view showing one embodiment of a heat storage member of the present invention.

FIG. 2 is an explanatory sectional view taken along line II-II of FIG. 1;

FIG. 3 is an explanatory top view showing one embodiment of the bed heat storage mat of the present invention.

FIG. 4 is an enlarged sectional explanatory view showing a main part of FIG. 3;

FIG. 5 is a schematic view showing an example of a usage mode of a bed heat storage mat.

FIG. 6 is an explanatory top view showing one embodiment of the heating heat storage mat of the present invention.

[Explanation of symbols]

1: cover, 1a, 1b, 1c, 1d: partition bag, 2: partition line, 3: upper cushion, 4: lower cushion, 5:
Core material, 6, 7, 8: heat storage member, 6a, 6b, 6c, 7
a, 7b, 7c, 8a, 8b, 8c: small bag portion, 9: bag body, 10: heat storage agent, 10A: heat storage agent body, 11: impregnated base material, 12: cord heater, 13: aluminum foil, 1
4: Temperature switch, 15: Power cord, 16: Connector, 17: Plug, 18: Flat heat transfer material, B: Heat storage mat for bed, C: Overlay, D: Heat storage mat for heating.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F24H 7/00 F24H 7/00 F28D 20/00 F28D 20/00 D

Claims (3)

[Claims] 1. A heat storage member main body in which a latent heat storage agent is sealed in a bag body composed of a plurality of small bag portions, and a flat plate having good thermal conductivity and elasticity provided on a lower surface of the heat storage member main body. A heat storage member comprising: a heat transfer material; and a heater unit provided on a lower surface of the flat heat transfer material. 2. A bag-like cover comprising a plurality of bag-like cover members provided in series and sequentially arranged in a direction from a head to a foot portion, wherein the bag-like cover is sealed in each of the storage portions. Item 2. A heat storage mat for a bed, comprising the heat storage member according to Item 1. 3. A heat storage mat for heating, comprising: a bag-shaped cover having a bag-shaped cover member provided with a storage portion therein; and the heat storage member according to claim 1 sealed in the storage portion.