JPH0645181Y2 - Heat storage material pack - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a heat storage material pack, and more particularly to a heat storage material pack containing a latent heat release type heat storage material that starts crystallization in a supercooled state to release latent heat. It is a thing.

[Prior art and problems to be solved]

In general, among the latent heat release type heat storage materials that crystallize in a supercooled state to release latent heat, in particular, hydrates of inorganic salts are largely undercooled and do not crystallize at the original melting point temperature, and even under room temperature Many remain liquid.

For this reason, if the latent heat release type heat storage material below the melting point temperature, for example, in a supercooled state at room temperature, can be arbitrarily crystallized, the latent heat at the melting point temperature level can be taken out when necessary, and the long term heat storage by the latent heat release type heat storage material can be taken out. Is possible.

Conventionally, a heat storage material pack in which a coil-shaped spring as a crystallization starter for eliminating the supercooled state of the heat storage material is enclosed together with the latent heat release type heat storage material as shown in FIG. Has been.

That is, the heat storage material pack 21 enables a supercooled state inside the bag-shaped container body 22 in which two rectangular flexible sheets are overlapped to form a sticking portion 22a on the peripheral portion. A latent heat release type heat storage material 23 such as sodium acetate trihydrate,
When the heat storage material 23 is in a supercooled state, a coiled spring 24 having a close contact portion which serves as a crystallization starter for eliminating the supercooled state and causing crystallization is enclosed.

FIG. 6 is a view taken along the line VI-VI of FIG. 5 and viewed in the direction of the arrow. FIG. 6 shows the coiled spring having the contact portion sealed inside the heat storage material pack 21. 24,
The heat storage material pack 21 is pressed by an appropriate pressing means such as a human finger or a switch mechanism to be deformed so as to be bent, and a sliding frictional force is applied to the coiled spring 24 having this contact portion, so that the coiled spring 24 Is to start a crystallization by applying a rapid pressure change to the heat storage material 23 in a supercooled state which is in contact with the heat storage material 23, at which time the heat storage material 23 releases latent heat to improve the heat storage function of the heat storage material pack 21. To fulfill.

However, in the above conventional heat storage material pack 21,
Since the coiled spring 24 is in a state of being freely movable inside the heat storage material pack 21, it is necessary to search for the coiled spring 24 when trying to take out latent heat, and the coiled spring 24 is pressed. At that time, there was a problem that the coiled spring 24 escaped and was difficult to grip.

The present invention solves the above-mentioned problems of the conventional one, and the coiled spring for starting the crystallization of the supercooled heat storage material inside the heat storage material pack cannot move freely. A small compartment is provided, the coiled spring is housed in the small compartment, and the coiled spring can be reliably grasped, and the work for starting the crystallization of the heat storage material can be performed easily and reliably. It is an object of the present invention to provide a heat storage material pack.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a heat storage material capable of a supercooled state and a crystallization of the heat storage material in a supercooled state inside a container body formed of a flexible sheet in a bag shape. A heat storage material pack in which a coiled spring for starting the above is enclosed, and a small compartment serving as a housing portion of the coiled spring is formed by a partition wall inside the container body, and the partition wall communicates with other parts. In addition, a communication portion having a diameter smaller than that of the coiled spring is provided, and the coiled spring is pressed by the elasticity of the flexible sheet forming the container body and is held at a predetermined position in the small compartment. Have a configuration.

[Action]

According to the present invention, by adopting the above-mentioned configuration, the coiled spring serving as a crystallization starter of the heat storage material arranged in the heat storage material pack can be easily and surely grasped from the outside of the heat storage material pack. As a result, the work of applying the sliding frictional force to the coiled spring becomes easy, and the latent heat of the heat storage material can be reliably taken out.

〔Example〕

 Embodiments of the present invention shown in the drawings will be described below.

FIG. 1 is a plan view of a heat storage material pack according to the present invention, and FIG. 2 is a sectional view taken along the line II-II of FIG. 1. The heat storage material pack 1 is composed of two rectangular flexible plates. Latent sheet heat of sodium acetate trihydrate etc. that can be supercooled inside the container body 2 which is made into a bag shape by stacking heat-sealing sheets and pasting the peripheral part by heat sealing to form the sticking part 2a Emissive heat storage material 3
And a coiled spring 4 having a close contact portion which serves as a crystallization starter for eliminating the supercooled state and starting crystallization when the heat storage material 3 is in the supercooled state, and the container body A small compartment 5 for accommodating the coiled spring 4 is formed in the inside of 2 by a partition wall 5a.

That is, the length of the container body 2 is parallel to one side of the sticking part 2a of the peripheral edge and slightly wider than the diameter of the coiled spring 4, and the length thereof is one side of the sticking part 2a of the peripheral part. A slightly shorter linear heat seal is formed to form a sticking portion 5a which serves as a partition wall, and the sticking portion 5a and the sticking portion 2a at the peripheral portion form a small compartment 5, and the inside of the small compartment 5 is formed. To the coiled spring 4
2 has a cross-sectional shape as shown in FIG. 2, and the coil-shaped spring 4 is pressed upward and downward by the elasticity of the flexible sheet, so that the inside of the small compartment 5 in the container body 2 is pushed. Prevents movement.

Further, a part of the extension of the sticking part 5a, which is not stuck, serves as the communicating part 6, and is formed so as to have a diameter through which the coiled spring 4 cannot pass.

In the heat storage material pack 1 according to the present invention having the above structure, the coiled spring 4 is housed in the small compartment 5 inside the container body 2 and does not move. The spring 4 can be easily and surely gripped, and the coiled spring 4 can be pressed from outside the heat storage material pack 1 by an appropriate pressing means such as a human finger or a switch mechanism, as shown in FIGS. ), The central part is pressed and deformed so as to be bent, and a sliding frictional force is applied to the coil-shaped spring 4 having the contact portion, and the heat-storage material in contact with the coil-shaped spring 4 in a supercooled state. 3 can be suddenly changed in pressure to surely start crystallization, and the communicating portion 6
Since it communicates with other parts in the container body 2, the entire heat storage material 3 in the container body 2 is crystallized, and the latent heat of the heat storage material 3 can be easily and surely released. Become.

FIG. 4 shows a second embodiment of the heat storage material pack according to the present invention. The heat storage material pack 11 has a contact portion at one corner of a container body 12 formed of a flexible sheet into a bag shape. A substantially triangular small compartment 15 for accommodating the coiled spring 14 is formed.

That is, the sticking parts on the two sides so as to surround one corner of the container body 12
12a, 12a to form a sticking portion 15a to be a partition by heat-sealing leaving a portion not sticking to a part of the hypotenuse of the triangle forming an angle of about 45 degrees, respectively, and this sticking portion 15a and the above A small compartment 15 is formed by the sticking portions 12a, 12a on the two sides, and the coiled spring 14 having the same contact portion as in the first embodiment is housed in the small compartment 15.

Further, the communication portion 16 is formed in a portion where the extension line of the attaching portion 15a is not attached.

The other structure is the same as that of the first embodiment.

In the heat storage material pack 11 configured as described above, since the coiled spring 14 is housed in the triangular small compartment 15 and does not move inside the container body 12 as in the first embodiment, The coil-shaped spring 14 can be easily and surely grasped from the outside of the heat storage material pack 11, and the coil-shaped spring 14 is pressed by an appropriate pressing means to contact the coil-shaped spring 14 A rapid pressure change can be applied to the heat storage material 13 in the state to reliably start crystallization, and the latent heat of the heat storage material 13 can be released easily and reliably.

Incidentally, in each of the above-mentioned examples, in order to form the small compartment for accommodating the coiled spring in the container body, the partition was formed by the sticking portion by heat sealing, but the inside of the container body is not limited to this. It may be partitioned by an adhesive or the like, and further, the small compartment may be formed by using another member for the partition wall.

Further, the flexible sheet constituting the container body of the heat storage material pack according to the present invention may be any sheet having flexibility, but preferably,
It can be heat-sealed, has strength against the phase change of the heat storage material, and has water resistance, heat resistance and the like, and an aluminum laminate sheet is particularly preferably used.

[Effect of device]

According to this invention, as described above, a small compartment containing a coiled spring for stimulating the heat storage material is formed in the container body, and at this time, by pressing with the elasticity of the flexible sheet forming the container body, By holding and fixing the coiled spring at a predetermined position in the small compartment, the movement of the coiled spring in the container body can be restricted.

That is, by fixing the coil-shaped spring to a predetermined position in the small compartment, the coil-shaped spring can be easily and surely grasped from the outside of the heat storage material pack, and the pressing work of the coil-shaped spring can be ensured. can do. Therefore, it is possible to easily and surely start the crystallization of the heat storage material by pressing the coiled spring.

Further, in the partition wall forming the small compartment, by forming a communication portion for communicating the small compartment with the other part of the container body,
Even if a large pressing force acts on the small compartment, the heat storage material in the small compartment easily flows to the other part of the container body through the communicating portion, and the applied pressure can be released. For this reason, it is possible to prevent the internal pressure of the small compartment from rising locally, and thus it is possible to prevent the container body from rupturing.

[Brief description of drawings]

FIG. 1 is a plan view of a first embodiment of a heat storage material pack according to the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. 3 is a coiled spring used in the heat storage material pack according to the present invention. Fig. 3 (a) is a diagram before deformation, Fig. 3 (b) is a diagram showing a deformed state, Fig. 4 is a plan view of a second embodiment of the heat storage material pack according to the present invention, FIG. 5 is a plan view of a conventional heat storage material pack, and FIG. 6 is an explanatory view taken along the line VI-VI in FIG. 5 and viewed in the direction of the arrow. 1, 11, 21 …… Heat storage material pack 2, 12, 22 …… Container body 2a. 12a, 22a …… Adhesive part 3, 13, 23 …… Heat storage material 4, 14, 24 …… Coil spring 5, 15 …… Small compartment 5a, 15a …… Adhesive part (partition wall) 6, 16 …… Communication part

Claims (1)

[Scope of utility model registration request] 1. A heat storage material (3) (13) capable of being supercooled inside a container body (2) (12) formed of a flexible sheet into a bag, and the heat storage material (3) (13) being supercooled. Heat storage material (3)
A heat storage material pack (1) (11) enclosing a coiled spring (4) (14) for starting crystallization of (13), wherein the coil is provided inside the container body (2) (12). Spring (4)
The small compartments (5) and (15), which will be the accommodation parts of (14), are
a) (15a), the partition walls (5a) (15a) communicate with other parts and the coil springs (4) (14)
The communication portions (6) (16) having a smaller diameter are provided, and the coiled springs (4) (14) are pressed by the elasticity of the flexible sheet forming the container bodies (2) (12), and the small sections are Drawing room (5)
(15) A heat storage material pack, which is held at a predetermined position in (15).