JPS60200093A - Regenerator - Google Patents

Abstract

PURPOSE:To shorten regenerating time, by laying baggy parts of two regenerative bodies confronting with connecting parts, respectively, as well as to provide heating wires in the non-jointed part of a connecting part, in a regenerative device for taking heat for a human body. CONSTITUTION:Regenerative bodies 7A and 7B are composed of two flexible sheets 8 made of thermally reversible resin and Al foil. A connecting part 12 consists of a joint part 9 and a non-jointed part 11 in which heating wires 10 are provided. The baggy container part 14 of a regenerative body is filled with regenerative agent 13 of latent heat type. The connecting pats 12A and 12B and the baggy container pats 14B and 14A are laid so as to be confronted with each other, and the layer is housed in a heat-insulating outer shell 15. The heat radiated from a heating wire 10A is transmitted to regenerative agents 13A and 13B, respectively, from the side of a baggy container part 14A passing through a joint part 9, and from the front side of a baggy container part 14B passing through a flexible sheet 8B. In such a manner, the regenerative time can be shortened in a regenerator.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heat storage device used for body warming.

Structure of a conventional example and its problems A conventional heat storage device of this type is covered with a heat insulating material 1 as shown in FIG. A latent heat type heat storage material 5 (hereinafter abbreviated as heat storage material) such as an inorganic hydrated salt was filled in the bag-like container portions 4 which were joined and arranged in an array through the joined portions 3 .

Further, in contact with the flexible sheet 2 of the bag-shaped container portion 4,
A heater 6 such as a tubing heater was provided which was fixed to another flexible sheet 2 by heat fusion. for example,
In a combination of a flexible sheet 2 having a PE layer and a tubing heater coated with PE, the tubing heater is fixed to the flexible sheet 2 by heat-sealing the PEs together.

In this configuration, the contact area between the heater 6 and the bag-like container 4 is small, and the thermal resistance when the thermal energy supplied from the heater 6 during heat storage is transmitted to the heat storage material 5 becomes very large. Therefore, the thermal energy supplied from the heater 6 is not quickly stored in the heat storage material 5. Then, the temperature of the heater 6 itself rises rapidly, which becomes very dangerous. In some cases, the joint 3 around the bag-shaped container 4 becomes brittle and the heat storage material 5
may leak, or the electrical insulation material of the heater 6 may be damaged, causing electrical leakage. In the first place, the heating density of the heater 6 (1 m
The amount of heat generated per unit (W) has increased, and there is always a risk that the temperature of the heater 6 will become high. Whether or not the temperature rise of the heater 6 can be suppressed depends on how efficiently the heat storage material 5 absorbs the thermal energy released by the heater 6. For this purpose, it is necessary to increase the contact area between the heater 6 and the bag-like container portion 4 filled with the heat storage material 5, and this contact area is insufficient in the above-described configuration.

Of course, the temperature of the heater 6 is controlled to avoid such a situation, but as described above, the heat storage material 5 completely melts due to its large thermal resistance (this refers to the time when heat storage is completed).
The heater 6 is controlled beforehand, and the heat storage time is significantly delayed.

FIG. 3 shows the time-temperature characteristics when heat storage is started using the heater 6. 100 and 200 are graphs showing temperature changes of the heater 6 and the heat storage material 5, respectively (showing the case where CH3COONa.3H20 is used as the heat storage material 11).

Further, since the heater 6 is only partially fixed to the flexible sheet 2 by heat fusion, the fixation of the heater 6 is not sufficient considering the case where external force is applied during heat storage. .

OBJECTS OF THE INVENTION The present invention solves these conventional problems and aims to provide a practical heat storage device that can quickly complete heat storage.

Structure of the Invention In order to achieve this object, the present invention includes a connecting part which joins a part of two flexible sheets and has the joined part and an unjoined part in which the heater wire is held; Two heat storage components each consisting of a bag-shaped container portion arranged through the connecting portion and filled with a latent heat type heat storage material, the connecting portion of one of the heat storage components corresponding to the bag-like container portion of the other heat storage component. It is laminated in such a way that

With this configuration, the contact area between the heater wire and the flexible sheet (including the bag-shaped container filled with the latent heat storage material) can be increased, and the heater wire can be securely fixed.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. In FIG. 2, two flexible sheets 8 such as AI laminate sheets made of thermoplastic resin (polyethylene, nylon) and A1 foil are used. A connecting part 12 which is partially joined by heat sealing and has an unjoined part 11 in which the joined part 9 and the heater wire 10 are held, and this connected part 1
CH3COONa -3H2
0 (melting point 58'C) (hereinafter abbreviated as heat storage material) 13. Then, these two heat storage components 7A and 7B are connected to the respective connecting portions 12A and 12B and the bag-like container portion 14B,
14A are stacked so as to correspond to each other. 13 is a heat insulating material.

In the above configuration, during heat storage, thermal energy released from, for example, the heater wire 10A passes through the joint 9A from the side of the bag-like container portion 14A, and also passes through the flexible sheath 8B from the front of the bag-like container portion 14B. Heat storage materials 13A and 13B
is transmitted to. In this way, the heat storage material 13 is transferred to the bag-like container portion 1
It melts quickly because it is efficiently heated from all around. Since the temperature difference between the heater wire 10 and the heat storage material 13 during heat storage becomes small, the heat storage material 13 can be completely melted before the heater wire 10 is controlled.

FIG. 4 shows the time-temperature characteristics when heat storage is started using the heater wire 10. 300.400 are heater wires 10. It is a graph showing the temperature change of the heat storage material 13 (showing the case where CH3COONa 3H20 is used as the heat storage material 13. The broken line in the graph is CH3COONa -3H20
shows the melting point of ). The heat storage time T2 is approximately 1/2 of the heat storage time T1 of the conventional heat storage device shown in FIG.

Furthermore, with regard to safety items that are important for a heat storage device for body warming, that is, safety under local heat retention, for example, if the temperature of a part of the heater wire 10A rises, the heat will easily be distributed throughout the two heat storage components 7A and 7B. It can be secured sufficiently because it is diffused into

Further, since the heater wire 10 is located at the connecting portion and is held between the joint portion 90 of the two flexible sheets 8, it is securely fixed.

Effects of the Invention As described above, the heat storage device of the present invention provides the following effects.

(1) The heater wire is held in the unjoined part of the connected part, and the bag-shaped container part of the two heat storage parts and the connected part are stacked so that they correspond to each other, so the latent heat type heat storage material can be completely removed. Heat storage time can be shortened because heat can be efficiently heated from the periphery.

(2) Since the heater is provided between the two flexible sheets of the connecting part, it is securely fixed.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional heat storage device, Fig. 2 is a sectional view of a heat storage device showing an embodiment of the present invention, Fig. 3 is a time-temperature characteristic diagram of a conventional heat storage device, and Fig. 4 is a diagram of the present invention. FIG. 3 is a time-temperature characteristic diagram of a heat storage device in an embodiment of the invention. 7... Heat storage component, 8... Flexible sheet 9
......1 joint, 10...heater wire, 1
1... unjoined part, 12... connected part,
13...Latent heat type heat storage material, 14...Bag-shaped container portion, 15...Insulating material. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure B Figure 3 Figure 4 →TJ! - Between the locks

Claims (1)

[Claims] Parts of a pair of flexible sheets are joined, and a connecting part has an unjoined part in which the joined part and the heater wire are held, and a latent heat storage material is filled with the latent heat storage material arranged through the connected part. Two heat storage parts consisting of a bag-like container part,
A heat storage device in which a connecting portion of one of the heat storage components and a bag-shaped container portion of the other are stacked so as to correspond to each other.