JP7142137B1 - Warming tool heat storage device and warming tool heat storage pedestal - Google Patents

Abstract

A warming tool heat storage device for exposing a warming tool filled with a heat storage material to sunlight to store heat in the warming tool, and to efficiently store heat in the warming tool. SOLUTION: In a warming tool heat storage device that stores heat by exposing a warming tool filled with a heat storage material to sunlight, the light collecting device is assembled with the reflective surface inside and collects the sunlight at a predetermined position. A pedestal is installed at a predetermined position of the light device and on which the warming tool is placed, and the pedestal is provided with a light entrance part for allowing sunlight to enter between the lower surface of the warming tool and the light collecting device. [Selection diagram] Fig. 1

Description

The present invention relates to a heating tool heat storage device that exposes a heating tool filled with a heat storage material to sunlight to store heat in the heating tool, a pedestal used for storing heat in the heating tool, and a method for storing heat in the heating tool.

For example, in Patent Documents 1 and 2, a heating tool in which a heat storage material is filled in a mat-like container is exposed to sunlight to store heat in the heating tool, and the heat stored in the heat storage material is dissipated to the inside of the bed. A warming tool that warms the surroundings of the warming tool is disclosed.

Japanese Patent Application Laid-Open No. 2019-155000 Japanese Patent No. 6909338

In Japanese Patent Application No. 2020-080200 (Japanese Patent Application Laid-Open No. 2021-173510), the applicant proposes a technique for storing heat in a warming tool by exposing a solar cooker with a warming tool at the position where food is placed to sunlight. is doing. However, with this technology, it is difficult for sunlight to reach the lower surface of the warming tool that is in contact with the solar cooler, and heat cannot be efficiently stored in the warming tool.

Here, for example, Chinese Patent Application No. 101769602 discloses that a supporting structure stand with a light reflecting part is placed in the center of a foldable solar cooker, and a rice cake enclosing a heat storage material is placed on the supporting structure stand. A solar cooker is disclosed that is placed on top of the rice cake and heats the rice cake by concentrating solar energy. Although the rice cake is placed away from the ground by the support structure stand, the sunlight reflected by the solar heat cooker is blocked by the support structure stand and does not reach the rice cake. It was taking too long.

The present invention has been made to solve the above problems, and in a warming tool heat storage device that stores heat in the warming tool by exposing the warming tool filled with a heat storage material to sunlight, heat can be efficiently stored in the warming tool. The purpose is to provide technology.

One aspect of the present invention is (1) a warming device heat storage device that stores heat by exposing a warming device filled with a heat storage material to sunlight, assembled with the reflective surface inside, and concentrating sunlight at a predetermined position. A light collecting device and a pedestal installed at the predetermined position and on which the warming device is placed, wherein the pedestal receives sunlight between the lower surface of the warming device and the light collecting device. It is characterized by having a light entrance part for allowing the light to enter.

In the warming tool heat storage device having the above configuration, a gap is provided between the lower surface of the warming tool and the light collecting device by the pedestal, and sunlight enters the gap through the light entrance part of the pedestal, and the lower surface of the warming tool Since it is irradiated, the heat can be efficiently stored in the warming tool.

(2) In the heat storage device for warming equipment described in (1), it is preferable that the pedestal has a reflecting surface that reflects the sunlight incident on the light entrance portion.

The heat storage device for warming gear having the above configuration can reflect the sunlight entering between the light collecting device and the warming gear on the reflective surface of the pedestal and evenly irradiate the lower surface of the warming gear. Heat can be stored efficiently on the lower surface of the warming tool where sunlight is difficult to reach.

(3) In the heat storage device for warming equipment described in (1) or (2), it is preferable that the light collecting device and the pedestal are made of the same material.

In the heat storage device for warming equipment having the above configuration, the pedestal can be formed using offcuts of the material from which the light collecting device is produced, and the pedestal can be manufactured at a low cost by effectively utilizing the material.

(4) In the heat storage device for warming equipment described in (3), the material is corrugated cardboard having a reflective surface formed on one surface, and the pedestal comprises one or more beam members and the one or two and a support member for supporting the above beam members, wherein the one or more beam members bent with the reflective surface facing outward are engaged with the support member bent with the reflective surface facing inward. It is preferred that

In the heat storage device for warming equipment having the above structure, the pedestal can be assembled or dismantled by bending the supporting member and the beam member formed of corrugated cardboard with a reflective surface formed on one side without using bolts or the like. It is convenient because you can

(5) In the heat storage device for warming equipment according to any one of (1) to (4), the pedestal has a plurality of beam members and a support member that supports the plurality of beam members, It is preferable that the support member and the plurality of beam members are each provided with the light entrance portion.

In the warming device heat storage device having the above configuration, the support member and each beam member have a light entrance part, so the number of beam members engaged with the support member is adjusted according to the size of the warming device, and the size of the pedestal is adjusted. Even if it is possible, it is possible to allow sunlight to enter between the warming tool supported by the pedestal and the light collecting device, irradiate the lower surface of the warming tool with sunlight, and store heat.

(6) In the heat storage device for warming equipment described in any one of (1) to (5), the light collecting device is foldable into a box shape, and the pedestal is the light collecting device folded into the box shape. Preferably, it can be stored in the device.

In the heat storage device for warming equipment having the above configuration, the pedestal used together with the light collecting device can be stored together with the light collecting device.

Another aspect of the present invention is (7) a pedestal installed in a light collecting device that collects sunlight at a predetermined position and on which the warming tool is placed, wherein the lower surface of the warming tool and the light collecting device It is characterized by having a light entrance part that allows sunlight to enter between.

Still another aspect of the present invention is (8) a method for storing heat in a warming tool filled with a heat storage material, in which a light collecting device assembled with the reflective surface facing inside; It is characterized by allowing sunlight to enter between the provided warming gear and irradiating the lower surface of the warming gear.

The warming tool heat storage pedestal and the warming tool heat storage method having the above configurations can realize the same function as the above-described warming tool heat storage device, and are novel and useful inventions.

According to the present invention, it is possible to realize a technique for efficiently storing heat in a warming tool in a warming tool heat storage device that exposes a warming tool filled with a heat storage material to sunlight to store heat in the warming tool.

1 is an external perspective view of a heat storage device for a warming tool according to an embodiment of the present invention when light is collected. FIG. It is a cut-out view of the condensing device and the pedestal. It is assembly explanatory drawing of a base. It is an external appearance perspective view of a base. It is an external appearance perspective view of a base. FIG. 4 is an exploded view of the light collecting device; It is a figure explaining the process which folds a light collection device into a box shape. It is a figure explaining the process which folds a light collection device into a box shape. It is a figure explaining the storage method of a base. It is a figure which shows the storage state of a warming-tool heat storage apparatus. FIG. 4 is a cross-sectional view for explaining the light collecting function of the heat storage device of the warming device; FIG. 4 is a cross-sectional view for explaining the light collecting function of the heat storage device of the warming device; FIG. 4 is a diagram showing a heat storage mat used in a pedestal effect confirmation test; It is a figure which shows the test result of a pedestal effect confirmation test.

An embodiment of a heating device heat storage device and a light collecting device according to the present invention will be described below with reference to the drawings. In the present embodiment, a heat storage device for warming equipment including a heat storage mat that stores heat when exposed to sunlight and a light collecting device that is assembled so as to be able to collect light will be described.

FIG. 1 is an external perspective view of a heat storage device 100 for warming equipment according to an embodiment of the present invention when light is collected. Dotted portions in the drawing indicate the reflecting surface 15 that reflects sunlight. Note that the reflecting surface 15 is indicated by dots in other drawings as well. A warming tool heat storage device 100 includes a light collecting device 1 and a base 5 . The pedestal 5 is an example of a 'heat storage pedestal for a warming device'. The light collecting device 1 can be used as a solar cooker that heats and cooks a pot or food by concentrating sunlight on the pot or food placed at a predetermined position. In addition, the light collecting device 1 is exposed to sunlight with a pedestal 5 installed at a predetermined position of the light collecting device 1, and a warming tool 8 placed on the pedestal 5, so that heat is accumulated in the warming tool 8. can also

The warming tool 8 is a heat storage mat in which a heat storage material including a latent heat storage material is enclosed in a mat-like container. The heat storage material of this embodiment is a latent heat storage material, a melting point adjuster that adjusts the melting point of the heat storage material, and a coloring agent that colors the heat storage material in a color that easily absorbs sunlight (for example, black). is. The heat storage material liquefies as heat is stored and solidifies as heat is released. In the warming tool 8 of this embodiment, a metal piece is enclosed in a mat-like container together with a heat storage material, and heat radiation is initiated by the stimulus of bending the metal piece. Note that the coloring agent and the metal pieces may be omitted. The warming tool 8 is used to keep warm, for example, in a shelter or outdoor camping. The warming tool 8 may be placed on the pedestal 5 in a state of being spread flat, or may be placed on the pedestal 5 in a state of being folded in three. Furthermore, a plurality of warming tools 8 may be placed on the pedestal 5 in a vertically stacked manner.

The condensing device 1 and the pedestal 5 are composed of a corrugated cardboard 14 on which one surface is subjected to aluminum vapor deposition and a reflecting surface 15 is provided, and the other surface is not subjected to aluminum vapor deposition and is not provided with the reflecting surface 15 . there is The aluminum vapor deposition may be performed by attaching an aluminum vapor deposition sheet to the cardboard 14 or by vapor-depositing aluminum directly on the surface of the cardboard 14 .

The pedestal 5 includes a support member 6 and two beam members 7,7. The pedestal 5 is not limited to the shape of this embodiment. For example, the number of beam members 7 may be one, or three or more. The support member 6 may be configured by combining a plurality of parts. A specific configuration of the base 5 will be described later.

The light condensing device 1 is formed by connecting a first sheet portion 2 and a second sheet portion 3 via a connecting portion 4 . In the light collecting device 1, the first assembly insert piece 28 and the second assembly insert piece 29 of the first sheet portion 2 are inserted in a state in which the first sheet portion 2 is erected with respect to the second sheet portion 3. By inserting them into the first assembling slit 11b and the second assembling slit 11c of the second sheet portion 3, respectively, the reflective surface 15 is set inside so that light can be collected. That is, the light collecting device 1 can be assembled by simply bending one cardboard 14 without using bolts or the like.

FIG. 2 is a cut-out view of the condensing device 1 and the base 5. As shown in FIG. The light collecting device 1 and the base 5 are made from the same material 200 . The material 200 is a corrugated cardboard with aluminum vapor deposition applied to one surface to form a reflective surface. The light collector 1 is formed by cutting out from the material 200 by punching or the like. The pedestal 5 is formed by cutting out the support member 6 and the beam members 7 and 7 from the material 200 by punching or the like using the blank space of the material 200 where the light collector 1 is not formed. That is, the pedestal 5 includes the support member 6 and the pair of beam members 7 , 7 by using offcuts obtained when the light collecting device 1 is cut out from the material 200 .

FIG. 3 is an explanatory drawing for assembling the pedestal 5. As shown in FIG. The pedestal 5 is assembled by bending and engaging the support member 6 and the beam member 7 which are cut out from the material 200 in a plate shape. The supporting member 6 has engaging portions 62 and 63 connected to both sides of a central portion 61 via bent portions 50a and 50b. The supporting member 6 has the reflecting surface 15 facing inward, and the engaging portions 62 and 63 are bent substantially at right angles to the central portion 61 to form a U-shape. As for the beam member 7, the 1st surface part 71 and the 2nd surface part 72 are continuously provided via the bending part 50m. The beam member 7 is folded in half along the bent portion 50m with the reflecting surface 15 facing outward, and the first surface portion 71 and the second surface portion 72 are exactly overlapped to form a plate.

The engaging portion 62 has a plurality of slits 51a formed vertically from the upper end in the figure. The engaging portion 63 has a plurality of slits 51b formed vertically from the upper end in the figure. The beam member 7 is folded in half and has a pair of slits 51m and 51n perpendicular to the bent portion 50m. It is constructed between the engaging portions 62 and 63 by fitting into the slits 51a and 51b.

4 and 5 are external perspective views of the pedestal 5. FIG. In the assembled pedestal 5 , the rod-shaped or linear edges of the support member 6 and the beam member 7 are arranged in a cross shape to form a support portion 55 for supporting the warming device 8 . Therefore, the warming tool 8 is placed on the pedestal 5 with its lower surface exposed between the support member 6 and the beam member 7 . A support member 6 and a pair of beam members 7 are arranged on the pedestal 5 so that the warming tool 8 can be horizontally supported even when the warming tool 8 accumulates heat and becomes liquid. Since the pedestal 5 is made of cardboard 14, the support members 6 and beam members 7 may be cut or the number of beam members 7 may be adjusted according to the shape of the warming device 8.

As shown in FIG. 3, the supporting member 6 has concave portions 52a, 52b, and 52c at the edge (lower end in the figure) opposite to the edge (upper end in the figure) in which the slits 51a and 51b are formed. is provided. The recess 52 a is provided in the central portion 61 , the recess 52 b is provided in the engaging portion 62 , and the recess 52 c is provided in the engaging portion 63 . Further, the beam member 7 is provided with a concave portion 52m between the slits 51m and 51n on the bent portion 50m side (lower end portion in the figure) in a state of being folded in half.

As shown in FIG. 2, the engagement portions 62 and 63 of the support member 6 are formed in an L shape so that cut portions 53a and 53b are connected to the bent portions 50a and 50b. As shown in FIG. 3, when the support member 6 is bent into a U-shape along the bent portions 50a and 50b, the recesses 52d and 52e are formed along the bent portions 50a and 50b by the cut portions 53a and 53b. Further, projections 64 and 65 extend from both ends of the central portion 61 so as to protrude sideways. As a result, the support member 6 is easier to bend at the bent portions 50a and 50b than when the cut portions 53a and 53b are not provided, and sunlight enters the inside of the pedestal 5 through the engaging portions 62 and 63. You can increase the amount you do. The concave portions 52a to 52e and 52m are examples of the "light entrance portion".

FIG. 6 is a developed view of the light collecting device 1. FIG. As shown in FIG. 6 , in the light collector 1 , a horizontally long first sheet portion 2 and a horizontally long second sheet portion 3 are connected to a connecting portion 4 .

The first sheet portion 2 includes, in order from the right side of the drawing, a fifth panel portion 25, a fourth panel portion 24, a first panel portion 21, a second panel portion 22, and a third panel portion 23, which are formed by bending portions 10a, 10b, and bending portions 10a and 10b. They are connected via 10c and 10d. The first sheet portion 2 is provided with a first assembly insertion piece 28 and a second assembly insertion piece 29 on the fifth panel portion 25 and the third panel portion 23 located at both ends.

In the second sheet portion 3, the seventh panel portion 32, the first side surface forming portion 34, the sixth panel portion 31, the second side surface forming portion 35, and the eighth panel portion 33 are folded in order from the right side of the drawing. They are connected via portions 10m, 10n, 10q, and 10p. In the second sheet portion 3, the first assembly slit 11b is provided in the seventh panel portion 32 located at the right end portion in the drawing, and the second assembly slit 11c is provided in the eighth panel portion 33 located at the left end portion in the drawing. is provided.

In the first sheet portion 2 and the second sheet portion 3, the first panel portion 21 and the sixth panel portion 31 are connected to the connecting portion 4 via the bent portions 10k and 10w, respectively. The first panel section 21 and the sixth panel section 31 are provided with marks 12b and 12a, respectively, which indicate the condensing positions where sunlight is condensed. The marks 12a and 12b are examples of "predetermined positions".

The light collecting device 1 can be transformed into a light collecting assembled state as shown in FIG. 1 and a box-shaped folded state.

That is, as shown in FIG. 7, in the first sheet portion 2, the second panel portion 22 and the third panel portion 23 are arranged so that the reflecting surface 15 faces the reflecting surface 15 side of the first panel portion 21 (upper side in the drawing). The fourth panel portion 24 and the fifth panel portion 25 are folded to the side opposite to the reflecting surface 15 of the first panel portion 21 (lower side in the drawing) with the reflecting surface 15 facing inward. That is, the first sheet portion 2 can be folded into a bellows shape with the first panel portion 21 as the center.

In the second sheet portion 3, the first side surface forming portion 34 and the second side surface forming portion 35 are arranged to face each other, and the seventh panel portion 32 and the eighth panel portion 33 are overlapped and arranged to face the sixth panel portion 31. , folded. That is, the second sheet portion 3 can be folded into a rectangular shape with the sixth panel portion 31 as the center.

As shown in FIG. 8 , in the light collecting device 1 , a first sheet portion 2 folded in a bellows shape and a second sheet portion 3 folded in a rectangular shape are superimposed via a connecting portion 4 .

As shown in FIG. 6, the fifth panel portion 25 of the first sheet portion 2 has an opening/closing portion 26 continuously provided at the upper end portion in the figure via a bent portion 10e, and a belt portion 27 folded at the lower end portion in the figure. They are connected via a curved portion 10h. As shown in FIG. 8, when the light collecting device 1 is folded into a box shape, the opening/closing portion 26 is folded at the folding portion 10f so that the first storage insertion piece 262 is positioned inside the sixth panel portion 31. , and forms a side surface facing the connecting portion 4 . The light collecting device 1 is opened and closed by inserting the third assembly insertion piece 38 provided on the second sheet portion 3 (sixth panel portion 31) into the first storage slit 11d provided on the opening/closing portion 26. Opening and closing of the portion 26 is restricted.

As shown in FIG. 8, when the light collecting device 1 is folded into a box shape, the belt portion 27 is arranged along the connecting portion 4 and is bent via the bent portion 10i. The insertion piece 272 is inserted into the second storage slit 11e formed along the bent portion 10w (see FIG. 6) between the connecting portion 4 and the second sheet portion 3. As shown in FIG. Thereby, the belt portion 27 holds the first seat portion 2 and the second seat portion 3 so as not to spread.

FIG. 9 is a diagram for explaining a storage method for the pedestal 5. As shown in FIG. When storing the warming tool heat storage device 100, the light collecting device 1 is folded into a box shape. The pedestal 5 is dismantled into a support member 6 and beam members 7,7. The support member 6 is folded so that the engaging portions 62 and 63 are superimposed on the central portion 61 via the bent portions 50a and 50b (see FIG. 3). The beam member 7 is extended into a flat plate by extending the bent portion 50m. The support member 6 and the beam members 7, 7 are housed together in an internal space S formed by folding the second seat portion 3 into a rectangular shape. In this embodiment, the warming tool 8 is also stored in the internal space S of the light collector 1, but the warming tool 8 may be stored separately.

FIG. 10 is a diagram showing a storage state of the warming tool heat storage device 100. As shown in FIG. A warming tool heat storage device 100 in which a supporting member 6, a beam member 7 and a warming tool 8 are housed in a light collecting device 1 folded into a box shape is stored in a storage place together with other warming tool heat storage devices 100 and the like. The warming tool heat storage device 100 may be stored with the wide surface of the light collecting device 1 facing downward, or may be stored on one of the four side surfaces (for example, the second side surface) provided between the pair of wide surfaces. It may be stored in a state of standing up like a book with the forming part 35 or the connecting part 4) facing downward.

Next, a method for storing heat in the warming gear 8 using the warming gear heat storage device 100 will be described. The user takes out the warming gear heat storage device 100 stored as shown in FIG. 9 from the storage location. Since the pedestal 5 is stored with the support member 6 and the beam members 7 and 7 housed in the light collecting device 1 , it can be taken out together with the light collecting device 1 . In addition, the pedestal 5 is less prone to the problem of being unable to reassemble due to loss of parts during storage.

Outdoors in the daytime, the user takes out the support member 6, the beam members 7 and 7, and the warming tool 8 from the box-shaped light collecting device 1, dismantles the box-shaped light collecting device 1, and puts it into a shape that can collect light. transform. Also, the user assembles the pedestal 5 . That is, the user folds the beam members 7 in half with the reflective surface 15 facing outward, and engages the support member 6 bent into a U shape with the reflective surface 15 facing inward.

FIG. 11 is a cross-sectional view for explaining the light collection function of the heat storage device 100 for warming. For example, the user installs the light collecting device 1 with the reflecting surface 15 facing the sun and the first sheet portion 2 facing downward. The user installs the assembled pedestal 5 at a predetermined position of the light collector (here, above the mark 12b of the first panel section 21). The pedestal 5 is installed in the light collector 1 with the concave portions 52a to 52e and 52m facing downward. Then, the warming tool 8 is placed on the pedestal 5. - 特許庁

A gap S11 is formed by the base 5 between the lower surface of the warming tool 8 and the first sheet portion 2 of the light collecting device 1 . Since the warming tool 8 is placed on the support portion 55 formed by arranging the rod-shaped or linear ends of the support member 6 and the beam member 7 in a cross shape, the lower surface is the first sheet portion 2 . It directly faces the reflecting surface 15 provided on the one-panel portion 21 with a gap S11 interposed therebetween. A gap is formed between the pedestal 5 and the first panel portion 21 by the concave portions 52a to 52e and 52m, and the sunlight reflected on the reflecting surface 15 of the light collector 1 passes through the concave portions 52a to 52e and 52m. Light enters the gap S11.

As indicated by L20 and L21 in the drawing, the warming tool 8 placed on the pedestal 5 is irradiated with sunlight directly or reflected on the second sheet portion 3 of the light collecting device 1 to irradiate the upper surface and the side surface, and the sunlight starts to accumulate heat from the irradiated part.

In addition, as indicated by L22, L23, and L24 in the drawing, the sunlight is reflected by the first sheet portion 2 and the second sheet portion 3, and enters the gap S11 through the concave portions 52a to 52e and 52m of the base 5. The sunlight that enters the gap S11 is reflected by the first panel portion 21 and is irradiated to the lower surface of the warming tool 8. As shown in FIG. As a result, the warming tool 8 can start storing heat from the lower surface as well.

In the pedestal 5, the support member 6 is bent into a U shape with the reflecting surface 15 inside, and the beam member 7 is bent with the reflecting surface 15 outside. As a result, the surface of the pedestal 5 located in the gap S<b>11 is formed by the reflecting surface 15 . Therefore, the sunlight entering the gap S11 is reflected by the reflecting surface 15 of the beam member 7 and the supporting member 6, and the lower surface of the warming tool 8 is evenly irradiated. In addition, the sunlight is evenly irradiated to the lower surface of the warming tool 8, which is conventionally difficult for sunlight to reach. Therefore, the bottom surface of the warming tool 8 is efficiently irradiated with sunlight to store heat.

Here, the warming tool 8 is colored in a color that easily absorbs sunlight (black in this embodiment). As a result, the sunlight entering the gap S11 of the warming tool 8 is likely to be collected on the lower surface, thereby promoting heat storage.

The heat storage material of the warming tool 8 is liquefied and softened as the heat is stored. However, since the lower surface of the warming tool 8 is supported by the beam member 7 of the pedestal 5, even if the heat storage material becomes soft, the central part is supported by the beam member 7 and does not hang down, and can maintain a flat state. . As a result, the warming tool 8 is placed on the pedestal 5 with a substantially uniform thickness from the start of heat storage to the end of heat storage, and uneven heat storage due to changes in thickness is less likely to occur.

By the way, as shown in FIG. 12, when the light collecting device 1 is installed on the ground with the second sheet portion 3 facing downward, the inclination angle of the first sheet portion 2 with respect to the ground is shown in FIG. , is larger than the inclination angle of the second seat portion 3 with respect to the ground when the first seat portion 2 is placed on the ground. Therefore, for example, in the summer when the altitude of the sun is high, the user places the second sheet portion 3 on the ground with the second sheet portion 3 facing downward as shown in FIG. 12, and in the winter when the altitude of the sun is low, the As shown, if it is installed on the ground with the first sheet portion 2 facing downward, it is possible to collect sunlight efficiently all year round using the light collecting device 1 and store heat in the warming tool 8 . .

Even when the light collecting device 1 is installed as shown in FIG. 12, although the pedestal 5 is slightly inclined in this embodiment, the warming tool 8 does not fall from the pedestal 5, as indicated by L10 and L11 in the figure. , sunlight is irradiated on the top and sides. In addition, as indicated by L12, L13, and L14 in the figure, sunlight enters the gap S11 between the light collecting device 1 and the warming tool 8 through the concave portions 52a to 52d and 52m of the base 5, The lower surface of the tool 8 is irradiated. Therefore, the warming gear heat storage device 100 can irradiate the lower surface of the warming gear 8 with sunlight and efficiently store heat in the warming gear 8 .

In addition, the pedestal 5 may be installed in the light collector 1 in a direction different from that in FIGS. 11 and 12 . In addition, the base 5 may have the number of beam members 7 changed according to the size of the warming tool 8, or the support member 6 may be cut. The pedestal 5 has recesses 52a to 52e and 52m in the support member 6 and the beam member 7, respectively. can illuminate.

Here, the inventors conducted a pedestal effect confirmation test for investigating the effect of the pedestal 5 . The test was conducted in February under sunny and sometimes cloudy weather from 10:00 a.m. with the heat storage device for warming devices of the example and the heat storage device for warming devices of the comparative example installed outdoors. The example and the comparative example are configured in the same manner except for the presence or absence of the pedestal 5 . That is, in the embodiment, as shown in FIG. 11, the light collecting device 1 assembled so as to be able to collect light is installed so that the first sheet portion 2 is brought into contact with the ground, and the pedestal 5 is attached to the first panel portion 21. , and a warming tool 8 was placed on the pedestal 5. In the comparative example, the light collector 1 was installed in the same manner as in the example, and the warming tool 8 was placed directly on the first panel portion 21 of the light collector 1 without using the pedestal 5 .

FIG. 13 is a diagram showing the warming tool 8 used in the pedestal effect confirmation test. In this test, a warming tool having a shape disclosed in Japanese Patent Application No. 2020-117278 was used. In the experiment, the warming tool 8 was filled with a heat storage material composed of sodium acetate trihydrate, glycerin, and a black coloring agent. In the test, when the warming tool 8 is folded in three, and the folded warming tool 8 is made into the first layer 81, the second layer 82, and the third layer 83 from the bottom, the temperature of the upper surface SC1 of the first layer 81 is measured by a temperature sensor. Measured by T3. Then, based on the measurement result of the temperature sensor T3, the amount of temperature change in which the temperature of the upper surface SC1 changes with respect to the temperature at the start of the test (test start temperature) was investigated.

FIG. 14 is a diagram showing test results of a pedestal effect confirmation test. In FIG. 14, the vertical axis indicates the air temperature (° C.) and the amount of temperature change (° C.) of the warming tool 8, and the horizontal axis indicates time. The thick solid line in the figure indicates the amount of temperature change in the example, and the dotted line in the figure indicates the amount of temperature change in the comparative example. A thin solid line in the figure indicates a change in outside air temperature. The ambient temperature was approximately 10°C during the test.

As indicated by P1 in the figure, the temperature of the comparative example began to drop immediately after the start of the test, and the temperature was about 5°C lower than at the start of the test. Then, as indicated by P2 in the figure, in the comparative example, after the temperature stopped falling, the temperature began to rise little by little. In the comparative example, the reason for P1 in the drawing is thought to be that the lower surface of the warming tool 8 loses heat to the ground via the first panel portion 21 made of the cardboard 14 .

On the other hand, in the example, the temperature rose immediately after the start of the test. A possible reason for this is that, in the embodiment, there is a gap S11 between the lower surface of the warming tool 8 and the first panel portion 21, and the heating tool 8 is not directly deprived of heat by the ground.

Further, in the example, the rate of temperature rise from immediately after the start of the test is higher than the rate of temperature rise in the comparative example indicated by P2 in the figure. This is because, in the comparative example, the lower surface of the warming tool 8 is not irradiated with sunlight, and the sunlight transmitted through the third layer 83 and the second layer 82 of the warming tool 8 reaches the first layer 81, and the first layer While the heat storage material of the first layer 81 stores heat, in the example, the lower surface SC2 of the first layer 81 of the warming tool 8 is further irradiated with sunlight, and the heat storage material of the first layer 81 stores heat due to the sunlight. This is thought to be because

From this test result, it was demonstrated that by placing the warming tool 8 on the light collector 1 via the pedestal 5, the temperature of the warming tool 8 can be raised in a short time and heat can be stored efficiently.

As described above, the heat storage device 100 of the present embodiment provides the gap S11 between the lower surface of the warming tool 8 and the light collecting device 1 by the base 5, so that the sunlight passes through the concave portions 52a to 52e and 52m of the base 5. The light enters through the gap S11 and irradiates the lower surface of the warming tool 8, so that the warming tool 8 can efficiently store heat.

It should be noted that the present invention is not limited to the above embodiments, and can be applied in various ways. For example, the marks 12a and 12b shown in FIG. The concentrator 1 does not have to be collapsible into a box. The condensing device 1 may be assembled by engaging a plurality of panels instead of folding the cardboard 14 . The pedestal 5 may be stored separately from the light collecting device 1 and the warming tool 8 .

For example, the items stored in the light collecting device 1 of the heat storage device 100 for warming may not be the pedestal 5 or the warming device 8 . For example, a solar battery that stores electricity using sunlight may be used. Also, the stored items may not be used together with the light collecting device 1 . For example, it may be a towel, emergency food, or other material that is used in the place where the light collecting device 1 is used. Furthermore, the items to be stored are not limited to specific products, and may be items such as personal belongings that are subsequently stored in the light collecting device 1 .

For example, in the above-described embodiment, the concave portions 52a to 52e and 52m are used as an example of the light entering portion. good. In this case, the transparent portion through which sunlight can pass is an example of the light entering portion. Moreover, the pedestal 5 may be provided with a hole through which sunlight can pass, and the hole may be used as an example of the light entrance portion.

For example, the pedestal 5 may be composed of a single part such as a square frame or a lattice frame so that the size cannot be adjusted according to the size of the warming device 8 . However, as in the above embodiment, the pedestal 5 engages a plurality of beam members 7 with the support member 6, and the support member 6 and each beam member 7 have recesses 52a to 52e. By providing 52 m, the number of beam members 7 engaged with the support member 6 can be adjusted according to the size of the warming tool 8, and even if the size of the base 5 can be adjusted, the warming tool 8 supported by the base 5 can be adjusted. and the light collecting device 1, the sunlight can be irradiated to the lower surface of the warming tool 8 and heat can be accumulated.

For example, in the pedestal 5, the support member 6 may be composed of a plurality of support panels, and one or more beam members 7 may be engaged with the plurality of support panels. However, as in the above embodiment, the pedestal 5 is assembled by folding the support member 6 into a U-shape and engaging the beam member 7, so that when the warming tool 8 is placed, the pedestal 5 It does not lose its shape due to its weight. Moreover, even when the warming tool 8 is liquefied with heat storage, the pedestal 5 supports the warming tool 8 so as not to change the shape of the warming tool 8, thereby suppressing uneven heat storage due to changes in the thickness of the warming tool 8.例文帳に追加

For example, the pedestal 5 may not have the reflective surface 15 . However, as in the above embodiment, the pedestal 5 is provided with the reflecting surface 15 that reflects the sunlight that enters the concave portions 52a to 52e and 52m, so that the gap S11 between the light collecting device 1 and the warming tool 8 is Since the incident sunlight can be reflected on the reflecting surface 15 of the pedestal 5 and radiated to the lower surface of the warming tool 8, the sunlight is evenly applied to the lower surface of the warming tool 8, and conventionally, it is difficult for the sunlight to reach. The lower surface of the warming tool 8 can efficiently store heat.

For example, the pedestal 5 may be provided with the reflective surface 15 also on the surface positioned outside the support member 6 . According to this, the sunlight reaching the outside of the pedestal 5 is reflected by the reflective surface, and further reflected by the reflective surface of the light collecting device 1, is irradiated to the warming tool 8, or enters the gap S11. Therefore, it can be expected that the warming tool 8 can store heat more efficiently.

For example, the pedestal 5 does not have to be made of the same material 200 as the light collector 1 . However, since the pedestal 5 is formed from the same material 200 as that of the light collecting device 1 as in the above embodiment, the pedestal 5 can be formed using scraps of the material 200 from which the light collecting device 1 is produced. Therefore, the base 5 can be manufactured at a low cost by effectively using the material 200 .

For example, the condensing device 1 may be made of thick paper, cardboard, wooden board, plastic board, or the like, in addition to the cardboard 14 . However, as in the above-described embodiment, by configuring the light collecting device 1 with the cardboard 14 having the reflection surface 15 formed by vapor-depositing aluminum on one surface, even children and the elderly can use the light collecting device 1 and the pedestal 5. Easy to carry and assemble.

The pedestal 5 may not be made of cardboard 14, but may be made of thick paper, cardboard, wooden board, plastic board, or the like. Moreover, the support member 6 and the beam member 7 do not have to be foldable. Also, the support member 6 and the beam member 7 may be made of different materials. However, as in the above embodiment, the pedestal 5 is composed of a cardboard 14 having a reflective surface 15, and a beam member 7 folded with the reflective surface 15 outward is attached to the support member 6 that is folded with the reflective surface 15 inward. By engaging them, the pedestal 5 can be assembled or dismantled without using bolts or the like, which is convenient.

The pedestal 5 may omit the recess 52m of the beam member 7, for example. Further, the pedestal 5 may omit the concave portions 52b to 52e of the engaging portions 62 and 63 or the concave portion 52a of the central portion 61. FIG. However, the pedestal 5 has recesses 52a to 52e in the support member 6 and a recess 52m in the beam member 7, so that sunlight enters the gap S11 between the warming tool 8 and the light collecting device 1. The amount of heating is increased, and the lower surface of the warming tool 8 can be efficiently stored.

The pedestal 5 does not have to be made storable in the light collecting device 1 folded into a box shape. However, as in the above embodiment, the pedestal 5 can be stored in the light collector 1 folded into a box shape, so that the pedestal 5 used together with the light collector 1 can be stored together with the light collector 1. Since it can be stored, there is no need to take out the pedestal 5 and the condensing device 1 separately, which is convenient.

In the above-described embodiment, the number of panel portions of the first sheet portion 2 and the second sheet portion 3 is not limited to that in the above-described embodiment. The folding method of the first sheet portion 2 and the second sheet portion 3 may be different from the above embodiment.

The order of the assembly procedure and folding procedure of the light collecting device 1 and the base 5 may be changed without departing from the gist of the invention.

1 Light collector 5 Pedestal 6 Support member 7 Beam member 14 Corrugated cardboard 15 Reflective surface 100 Warming tool heat storage device 52a to 52e, 52m Concave portion (an example of a light entrance portion)

Claims (8)

In a warming tool heat storage device that stores heat by exposing a warming tool filled with a heat storage material to sunlight,
a light collecting device assembled with the reflective surface inside and collecting sunlight at a predetermined position;
a pedestal installed at the predetermined position and on which the warming tool is placed;
has
The pedestal has a light entrance part for allowing sunlight to enter between the lower surface of the warming tool and the light collecting device;
the concentrator and the pedestal are formed from the same material;
The material is a corrugated cardboard having a reflective surface formed on one surface,
The pedestal has one or more beam members and a support member that supports the one or more beam members, and the one or more beam members are bent with the reflecting surface facing outward. is engaged with the support member that is bent with the reflective surface facing inward;
A warming tool heat storage device characterized by: In a warming tool heat storage device that stores heat by exposing a warming tool filled with a heat storage material to sunlight,
a light collecting device assembled with the reflective surface inside and collecting sunlight at a predetermined position;
a pedestal installed at the predetermined position and on which the warming tool is placed;
has
The pedestal has a light entrance part for allowing sunlight to enter between the lower surface of the warming tool and the light collecting device;
The pedestal has a plurality of beam members and a support member that supports the plurality of beam members, and the support member and the plurality of beam members each have a recess for forming the light entrance section. ,
A warming tool heat storage device characterized by: In a warming tool heat storage device that stores heat by exposing a warming tool filled with a heat storage material to sunlight,
a light collecting device assembled with the reflective surface inside and collecting sunlight at a predetermined position;
a pedestal installed at the predetermined position and on which the warming tool is placed;
has
The pedestal has a light entrance part for allowing sunlight to enter between the lower surface of the warming tool and the light collecting device;
the light collecting device is foldable into a box shape,
the pedestal can be accommodated in the condensing device folded into a box shape;
A warming tool heat storage device characterized by: In the warming device heat storage device according to any one of claims 1 to 3 ,
The pedestal has a reflective surface that reflects the sunlight incident on the light entrance portion;
A warming tool heat storage device characterized by: In the warming tool heat storage device according to claim 2 or 3,
the concentrator and the pedestal are formed from the same material;
A warming tool heat storage device characterized by: In the warming tool heat storage device according to claim 5 ,
The material is a corrugated cardboard having a reflective surface formed on one surface,
The pedestal has one or more beam members and a support member that supports the one or more beam members, and the one or more beam members are bent with the reflecting surface facing outward. is engaged with the support member that is bent with the reflective surface facing inward;
A warming tool heat storage device characterized by: A pedestal installed in a light collecting device that collects sunlight at a predetermined position and on which a warming tool filled with a heat storage material is placed,
a plurality of beam members;
a support member that supports the plurality of beam members;
each of the support member and the plurality of beam members has a recess for allowing sunlight to enter between the lower surface of the warming tool and the light collecting device;
A pedestal for heat storage of a warming tool characterized by A pedestal installed in a light collecting device that collects sunlight at a predetermined position and on which a warming tool filled with a heat storage material is placed,
Having a light entrance part for allowing sunlight to enter between the lower surface of the warming device and the light collecting device;
being storable in the concentrator folded into a box;
A pedestal for heat storage of a warming tool characterized by

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