JP4876205B2 - Heat storage capsule - Google Patents

Description

  In the present invention, a heat storage material is accommodated on the inner side and wrapped in a skin composed of a face material portion, and a heat medium (for example, air) is brought into contact with the surface, and the heat storage material is subjected to heat exchange. In more detail, a substantially flat shape heat storage capsule configured to be able to store heat or to dissipate heat from the heat storage material, more specifically, a substantially flat capsule container body is constituted by a pair of facing face material portions. The present invention relates to a heat storage capsule in which a heat storage material is accommodated in a sealed space between the face material portions.

Conventionally, in this type of heat storage capsule, a plurality of heat storage capsules are arranged side by side in a state in which gaps are secured, and a heat medium such as air is passed through the gaps to store heat (or dissipate heat) in the heat storage capsules by heat exchange. Generally, it is used in such a form that the heat storage capsule is formed in a substantially flat shape, for example. Moreover, as shown in FIG. 7, the structure of such a capsule container main body C has a pair of face material parts 1 sealed and fused, and the joint part 3 between the face material parts 1 is a capsule container main body. It was provided at a plurality of locations around the outer periphery of C and at the center in the width direction (see, for example, Patent Document 1).
In addition, with respect to the joint portion 3 at the central portion, after being formed flat, an insertion hole 5 for inserting a bolt is formed in the central portion of the flat joint portion along the thickness direction. In order to integrally connect a plurality of heat storage capsules in a predetermined arrangement state, as shown in FIG. 8, the bolts 4 can be passed through the insertion holes 5 in a state where the heat storage capsules are overlapped. Was.
Such a prior art is widely known among those skilled in the art, but since there is no patent document or the like that specifically refers to the structure of the joint, no prior art document is shown.

JP 2003-214783 A (FIG. 7)

According to the conventional heat storage capsule described above, when connecting a plurality of heat storage capsules with bolts, as shown in FIG. 8 (a), the clamping force acting around the insertion hole 5 as the bolt 4 is tightened is used. The entire heat storage capsule is easily deformed in a warped state, and the gap between the heat storage capsules is not uniform, thereby causing adverse effects such as variations in heat exchange performance, and if the deformation becomes large, the stress on the face member 1 becomes large. There are problems such as becoming easy to tear.
In order to prevent this, as shown in FIG. 8 (b), a cylindrical spacer 10 is inserted between the flat joints 3 of adjacent heat storage capsules when the bolts 4 are inserted into the respective insertion holes 5. It is conceivable that the bolt 4 is inserted into the spacer 10 by being installed. In this case, the tightening force of the bolt 4 can be received in a state in which the flat joint portion 3 is backed up by the spacer 10, so that the entire heat storage capsule can be prevented from being deformed. However, there is a problem in that it takes time to arrange the spacers for each bolt and between the heat storage capsules when connecting the heat storage capsules.

  Accordingly, an object of the present invention is to provide a heat storage capsule which eliminates the above-mentioned problems and is less deformed and less troublesome in connecting the heat storage capsules arranged side by side with bolts.

  A first characteristic configuration of the present invention is a heat storage capsule in which a substantially flat capsule container main body is formed by a pair of face material portions arranged to face each other, and a heat storage material is accommodated in a sealed space between the face material portions. In this case, a bolt insertion portion is formed in the joint portion between the face material portions to insert a bolt that is inserted through the plurality of capsule container main bodies arranged side by side along the thickness direction of the capsule container main body to be integrated. A reinforcing portion that can bear the tightening force of the bolt is provided around the entire circumference of the bolt insertion portion, and the reinforcing portion is formed in a state in which an internal space communicates with the sealed space. It is in the place where it is composed of the exit.

According to the first characteristic configuration of the present invention, the joints between the face material portions are inserted through the plurality of capsule container main bodies arranged in parallel along the thickness direction of the capsule container main body and integrated into a block shape. Since a bolt insertion portion for inserting a bolt to achieve a bolt is formed, and a reinforcing portion that can bear the tightening force by the bolt is provided around the entire circumference of the bolt insertion portion, the bolt insertion portion The tightening force by the inserted bolt can be borne mainly by the reinforcing portion, and it is easy to prevent the entire heat storage capsule from warping and deforming. As a result, the gap size between the heat storage capsules arranged side by side can be easily maintained at a predetermined value, and the heat exchange efficiency with the heat medium flowing through the gap can be averaged. In addition, such an action is not limited to the relationship between each heat storage capsule, but can be similarly expected when a plurality of heat storage capsule groups in which a plurality of heat storage capsules are integrated or stacked and used. It is possible to keep the gap size between the heat storage capsule groups at a predetermined value (including 0), and it is possible to average the heat exchange efficiency with the heat medium.
Furthermore, it is possible to save the trouble of installing the spacer between the adjacent heat storage capsules, and the heat storage capsule can be installed more efficiently.
And since the said reinforcement part is comprised by the bulging part formed in the state which internal space connected to the said sealed space, the said thermal storage material can be accommodated also in this bulging part, and the whole thermal storage capsule It is possible to increase the heat storage capacity.

  The 2nd characteristic structure of this invention exists in the place by which the several protruding item | line and the concave item were arranged in parallel along the outer surface in the said face material part.

According to the second characteristic configuration of the present invention, in addition to being able to achieve the above-described operation and effect of the first characteristic configuration of the present invention, the face material portion is configured as a mere plane. The surface area of the face material portion can be increased by the undulations of the ridges and the ridges, and the heat exchange surface with the air is increased accordingly, so that the heat exchange efficiency as a heat storage capsule is improved. It becomes possible.
Furthermore, the air that comes into contact with the face material portion is easily guided by the ridges and ridges, and can flow easily. Further, the heat exchange efficiency as a heat storage capsule can be improved.

  The 3rd characteristic structure of this invention exists in the place by which the said surface material part is provided with the cross groove on the outer surface in the state which cross | intersects the said groove.

According to the third characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effects according to the first or second characteristic configuration of the present invention, for example, even if a thin material is used for the face material portion In addition, the provision of the ridges and ridges increases the section modulus of the capsule container body and makes it difficult to bend. By providing the intersecting grooves, the section modulus as the capsule container body increases in the direction of the intersecting grooves, and it becomes difficult to bend in any direction.
As a result, even if it is used for a thinner wall member, it is easy to ensure the strength required for the capsule container body, and it is possible to further improve the heat exchange efficiency.

  The 4th characteristic structure of this invention exists in the place arrange | positioned in the state in which the said several groove | channel is in contact with the said bulging part.

  According to the 4th characteristic structure of this invention, in addition to being able to grant the above-mentioned effect by the characteristic structure in any one of the 1st-3rd aspect of this invention, compared with what provided the groove | channel alone. The bulging portion can reinforce the concave portion, and conversely, the concave portion can also reinforce the bulging portion, and the overall strength of the capsule container body can be increased.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as in the conventional example indicate the same or corresponding parts.

1 to 4 show one embodiment of the heat storage capsule of the present invention (hereinafter simply referred to as a capsule), and the capsule is mainly filled in the capsule container main body C and the capsule container main body C. It is comprised with the thermal storage material T (refer FIG. 3), for example, can be utilized in the air conditioning system and cold storage / heat storage system which concern on a house, a building, a factory, a plant, etc. As shown in the figure, the form of use is that a plurality of capsules are juxtaposed and used as a capsule group, and heat exchange is performed by circulating a heat medium such as air through the gap between the capsule container main bodies C of the capsule group. It is configured as shown.
The capsule is formed into a substantially flat shape as a whole, and a pair of face material portions 1 form an accommodation portion (corresponding to a sealed space) 2 for accommodating the heat storage material T in a sealed state (see FIG. 3, refer to FIG. 4), both the outer surfaces formed by the face material portion 1 are configured to be uneven, thereby increasing the surface area and improving the heat exchange efficiency.

  The heat storage material T is, for example, a mixture of calcium chloride hydrate and water, or a material that uses latent heat that undergoes phase transformation with heat absorption / release, such as various low melting point plastics, paraffins, and waxes. Can be configured. For example, when the capsule is used for air conditioning of a general building, it can be considered that hot air in a living space is guided to the capsule to store heat. At this time, in the case of the material using the latent heat, as an example, it is assumed that the room temperature fluctuates between about 18 ° C. and 27 ° C., for example, using a material capable of phase transformation at a temperature around 23 ° C. Can be mentioned. When using latent heat, a large amount of heat absorption / discharge can be secured. Moreover, it is also possible to use the substance using sensible heat as the heat storage material T instead of the latent heat.

The capsule container body C will be described in more detail.
As shown in FIGS. 1 to 3, the capsule container main body C is formed into a substantially flat shape having a substantially rectangular shape, and can be formed using, for example, a synthetic resin such as polyethylene or polypropylene. In this embodiment, a blow body is used as an example, and a hollow body is formed by inserting a cylindrical resin (parison) with a mold and inflating a balloon. And the cylindrical heat storage material filling port G is formed in the edge part of the capsule container main body C, and after filling the said heat storage material T from this part to the inner space part of the capsule container main body C, it obstruct | occludes. Thus, the sealed housing 2 is formed.
Note that the molding of the capsule container body C is not limited to the blow molding method, and can be formed by a sheet molding method, an injection molding method, or other known molding methods.

In addition, as described above, the front and back surfaces of the capsule container main body C include, for example, a large number of valleys (corresponding to concave stripes) 1b and crests (corresponding to convex stripes) 1a alternately along the capsule width direction. It is formed into an uneven shape (so-called “washing board” shape). In addition, if the surface side of the capsule container main body C is the trough part 1b (or peak part 1a), each uneven | corrugated shape is comprised so that the back surface side of the capsule container main body C may become the peak part 1a (or trough part 1b). Has been.
And as shown in the figure, the joint part 3 between the double-sided material parts 1 is constituted by fusing a plurality of substantially central portions in the width direction of the capsule container main body C from the front and back by a hot press. The capsule container main body C is formed in a flat state along the film surface at a substantially central portion of the thickness.
As shown in FIGS. 1 and 2, the joint portion 3 is formed in a circular shape in a front view of the capsule container main body C, and a bolt insertion portion S through which a connecting bolt 4 can be inserted at the center thereof. Is formed. The bolt insertion portion S forms a ring-shaped thin portion 3a when the double-sided material portion 1 is fused, and the thin-walled portion 3a is cut by pushing out the inner punched portion 3b. The insertion hole 5 is formed in the trace (refer FIG. 3). Therefore, it is possible to say that the insertion hole 5 is formed only in an arbitrary joint portion 3 without being limited to the formation of the insertion hole 5 by pushing out all the punched portions 3b.
Then, with a plurality of capsules arranged side by side, as shown in FIG. 4, a single bolt 4 is passed through each insertion hole 5 overlapped on the same axis, and a nut is screwed to the tip and tightened. Thus, the capsules can be connected together.
In this embodiment, the outer diameter of the punched portion 3b is set to a size that allows the punched punched portion 3b to be used as a lid of the heat storage material filling port G. By covering the portion 3b with the heat storage material filling port G and heating it, it can be fused and closed.
Further, a reinforcing portion 6 that can bear the tightening force of the bolt 4 is integrally formed around the entire circumference of the bolt insertion portion S (see FIGS. 1 and 2). As shown in the figure, the reinforcing portion 6 is configured by a bulging portion B formed so that the internal space communicates with the accommodating portion 2 (see FIGS. 3 and 4). By forming into a bulging shape, the strength is increased by increasing the section modulus of the reinforcing portion 6.
Further, as shown in FIGS. 1 and 2, a plurality of the valley portions 1b are arranged in contact with the bulging portion B, and the undulation of the valley and the mountain and the mutual bulging portion B are mutually connected. The strength of the capsule container body C is increased by the action.
Furthermore, the face material portion 1 is provided with an intersecting valley portion (corresponding to a cross recess) 1c on the outer surface thereof so as to intersect the valley portion 1b. It is formed in a structure that is difficult to bend in the long side direction.

  According to the capsule of this embodiment, as shown in FIG. 4, a plurality of capsules are arranged side by side, and the bolts 4 are inserted into the insertion holes 5 and tightened to form a capsule group easily and efficiently. can do. When the capsules are tightened with the bolts 4, the reinforcing portions 6 are brought into contact with each other to be sandwiched and fixed, and a gap V through which heat exchange air can flow is automatically secured between the facing face material portions 1. Is done. Therefore, the capsule container main body C is not easily deformed by the bolt tightening, and the gap V having a predetermined dimension is secured, so that the heat storage effect of the capsule itself can be exhibited better.

[Another embodiment]
Other embodiments will be described below.

<1> The heat storage capsule is not limited to the configuration of the material described in the previous embodiment. For example, the face member 1 is made of stainless steel, ordinary steel, aluminum, copper, or metal instead of synthetic resin. It may be constituted by a thin film such as a laminate with a synthetic resin, and the heat storage material T can use a substance utilizing sensible heat instead of the one utilizing latent heat.
Further, the shape of the heat storage capsule is not limited to the shape described in the previous embodiment, and the design can be changed as appropriate. In addition, the uneven shapes on the front and back surfaces can be appropriately changed in design.
<2> The bolt insertion portion S is not limited to being formed at the center of the width of the heat storage capsule. For example, as shown in FIG. 5, the bolt insertion portion S may be arranged left and right within the width of the heat storage capsule. Good. Further, as described above, the bolt insertion portion S itself may be in a state where the punched-out portion 3b is left, or may be in a state where it is removed and the insertion hole 5 is formed. It is called the universal part S.
<3> The bolt 4 that is inserted into the bolt insertion portion S to integrate a plurality of heat storage capsules includes the enlarged diameter head described in the previous embodiment, and has a type in which a nut is screwed into the tip portion. For example, as shown in FIG. 6, the bolt itself is formed of a metal rod, and the retaining latching claw 20a is connected to the inner peripheral portion. The plate-shaped locking member 20 provided in the above may be locked at both ends. In this case, the overall configuration is light and the cost can be reduced.
Accordingly, the bolts are collectively referred to as bolts including those in the different embodiments as described above, and do not stick to the presence or absence of screw grooves.

  In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

Perspective view showing heat storage capsule Front view and side view of heat storage capsule Side view sectional view showing the main part of the heat storage capsule Side view sectional view showing the assembly status of the heat storage capsule The perspective view which shows the thermal storage capsule of another embodiment The perspective view explaining the bolt of another embodiment The perspective view and principal part sectional drawing which show the thermal storage capsule of a prior art example Side view sectional drawing which shows the assembly condition of the thermal storage capsule of a prior art example

Explanation of symbols

1 Face material part 1a Mountain part (equivalent to a protrusion)
1b Valley (corresponds to a groove)
1c Crossing valley (corresponding to crossing recess)
2 Housing (equivalent to sealed space)
3 Joint part 4 Bolt 6 Reinforcement part B Bulging part C Capsule container body S Bolt insertion part T Thermal storage material

Claims (4)

A capsule container main body having a substantially flat shape is formed by a pair of face material parts arranged opposite to each other, and a heat storage capsule in which a heat storage material is accommodated in a sealed space between the face material parts,
A bolt insertion portion is formed in the joint portion between the face material portions to allow a bolt to be inserted through a plurality of the capsule container main bodies arranged side by side along the thickness direction of the capsule container main body to be integrated. A reinforced portion is provided around the entire circumference of the bolt insertion portion so as to be able to bear the tightening force of the bolt, and the reinforced portion is formed in a state where the internal space communicates with the sealed space. A heat storage capsule made up of   The heat storage capsule according to claim 1, wherein a plurality of ridges and recesses are alternately arranged along the outer surface of the face material portion.   The heat storage capsule according to claim 1 or 2, wherein a cross groove is provided on the outer surface of the face material portion so as to cross the groove.   The heat storage capsule according to any one of claims 1 to 3, wherein a plurality of the concave stripes are arranged in contact with the bulging portion.

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