WO2021053994A1 - Heat dissipation member and heat dissipation system - Google Patents

Abstract

A heat dissipation member (20) is applied to the outside of structures (10, 30, 40, 50, 70). The heat dissipation member is provided with a reflective part (21) for reflecting sunlight, and a radiating part (22) that is positioned on a side opposite to the structure with respect to the reflective part and radiates heat of the structure externally. The heat dissipation member is provided with a heat insulation part (23) provided on the side opposite to the structure with respect to the radiating part to suppress convective heat transfer associated with movement of an external fluid flowing externally. The heat insulation part is capable of allowing electromagnetic waves to pass through.

Description

Heat dissipation member, heat dissipation system Cross-reference to related applications

This application is based on Japanese Patent Application No. 2019-168544 filed on September 17, 2019, the contents of which are incorporated herein by reference.

This disclosure relates to a heat radiating member and a heat radiating system.

Conventionally, there is known a technique of suppressing a temperature rise of a structure by applying a sheet capable of not only reflecting sunlight but also radiating heat to the outside of the structure (for example, Patent Documents). 1). The sheet described in Patent Document 1 has a structure having a reflecting layer that reflects sunlight and a radiating layer that radiates heat.

U.S. Patent Application Publication No. 2019/0083164

The present inventors have studied using the sheet described in Patent Document 1 as a heat radiating member for the roof of an automobile to suppress a temperature rise in the vehicle interior. According to this study, it was found that when the airflow passes over the surface of the seat due to the running wind when the vehicle is running, the roof of the automobile is warmed by the convective heat transfer. That is, it was found that even if the sheet described in Patent Document 1 is simply applied to the roof of an automobile, it is difficult to obtain the effect of suppressing the temperature rise in the vehicle interior. Since this problem is caused not only by the running wind but also by the natural wind, it is not limited to the automobile, but may occur in other structures other than the automobile.
An object of the present disclosure is to provide a heat radiating member and a heat radiating system capable of suppressing a temperature rise of a structure.

According to one aspect of the disclosure,
The heat dissipation member is
A reflector that reflects sunlight and
A radiation part that is placed on the opposite side of the structure with respect to the reflection part and radiates the heat of the structure to the outside,
It is provided on the opposite side of the structure with the radiant part as a reference, and is provided with a heat insulating part that suppresses convective heat transfer due to the movement of the external fluid flowing outside.
The heat insulating portion is capable of transmitting electromagnetic waves.

According to this, the heat insulating part can suppress the temperature rise of the structure due to convective heat transfer due to the movement of the external fluid. In addition, since the heat insulating portion has a structure capable of transmitting electromagnetic waves, the heat of the structure can be radiated to the outside by the radiating portion while the sunlight is reflected by the reflecting portion.

According to another aspect of the disclosure,
The heat dissipation system
Exterior members located on the outside of the structure
With a heat radiating member applied to the outside of the exterior member,
The heat dissipation member is
A reflector that reflects sunlight and
A radiation unit that is located on the opposite side of the heat dissipation member with respect to the reflection unit and radiates the heat of the structure to the outside,
It has a heat insulating part that is provided on the side opposite to the heat radiating member with the radiating part as a reference and suppresses heat radiating due to the movement of the external fluid flowing outside.
The heat insulating portion is capable of transmitting electromagnetic waves.

According to this, the heat insulating part can suppress the temperature rise of the structure due to convective heat transfer due to the movement of the external fluid. In addition, since the heat insulating portion has a structure capable of transmitting electromagnetic waves, the heat of the structure can be radiated to the outside by the radiating portion while the sunlight is reflected by the reflecting portion. Therefore, the temperature rise of the structure can be suppressed as compared with the conventional system.

Moreover, according to another aspect of the present disclosure.
The heat dissipation system
Exterior members located on the outside of the structure
With a heat radiating member applied to the outside of the exterior member,
The heat dissipation member is
A reflector that reflects sunlight and
It is arranged on the opposite side of the heat radiating member with respect to the reflecting part, and has a radiating part that radiates the heat of the structure to the outside.
The exterior member is provided with a guide that guides the condensed water generated in the exterior member to the water storage device.

In these heat dissipation systems, the temperature rise of the exterior member is suppressed by arranging the heat dissipation member on the outside of the exterior member. In addition, in the heat dissipation system, for example, in an environmental condition where the amount of heat absorbed from the outside is reduced, the temperature of the exterior member is lowered, so that dew condensation is likely to occur on the exterior member. Therefore, by providing the exterior member with a guide for guiding the dew condensation water to the water storage device, water can be generated by utilizing the dew condensation generated on the exterior member.

Note that the reference symbols in parentheses attached to each component or the like indicate an example of the correspondence between the component or the like and the specific component or the like described in the embodiment described later.

It is a schematic plan view of the automobile to which the heat dissipation member which concerns on 1st Embodiment is applied. It is a schematic side view which shows a part of the automobile to which the heat dissipation member which concerns on 1st Embodiment is applied. It is a schematic cross-sectional view of the heat dissipation member which concerns on 1st Embodiment. It is explanatory drawing for demonstrating the effect of suppressing the temperature rise in the vehicle interior by the heat radiating member which is the comparative example of 1st Embodiment. It is explanatory drawing for demonstrating the effect of suppressing the temperature rise in the vehicle interior by the heat radiating member which concerns on 1st Embodiment. It is a 1st modification of 1st Embodiment, and is a schematic side view which shows a part of the vehicle which heat-dissipating member was applied to a roof antenna. It is a schematic diagram of the roof antenna shown in FIG. It is a 2nd modification of 1st Embodiment, and is a schematic side view which shows a part of the vehicle which a heat dissipation member was applied to an in-vehicle camera. It is a schematic diagram of the vehicle-mounted camera shown in FIG. FIG. 5 is a schematic side view showing a part of a vehicle in which a heat radiating member is applied to a roof-mounted air conditioner according to a third modification of the first embodiment. It is a schematic cross-sectional view of the heat dissipation member which concerns on 2nd Embodiment. It is a schematic cross-sectional view of the heat radiating member which becomes the modification of the 2nd Embodiment. It is a schematic cross-sectional view of the heat radiating member which concerns on 3rd Embodiment. It is a schematic cross-sectional view of the heat radiating member which becomes the modification of 3rd Embodiment. It is a schematic cross-sectional view of the heat dissipation member which concerns on 4th Embodiment. It is a schematic cross-sectional view of the heat dissipation member which concerns on 5th Embodiment. It is a schematic cross-sectional view of the heat radiating member which concerns on 6th Embodiment. It is a schematic cross-sectional view of the heat dissipation member which concerns on 7th Embodiment. It is a schematic diagram of the bicycle equipped with the cooler box to which the heat dissipation member which concerns on 8th Embodiment is applied. It is a schematic diagram of the cooler box shown in FIG. It is explanatory drawing for demonstrating attachment of a heat radiating member to a cooler box, and removal of a heat radiating member from a cooler box. It is a modification of the 8th Embodiment, and is the schematic diagram of the trailer which carries a container to which a heat dissipation member is applied. It is a schematic diagram of the vending machine to which the heat dissipation member which concerns on 9th Embodiment is applied. It is a schematic perspective view of the house to which the heat dissipation member which concerns on 10th Embodiment is applied. It is a schematic front view of the house to which the heat dissipation member which concerns on 10th Embodiment is applied. It is a schematic front view of the house to which the heat dissipation member which concerns on 10th Embodiment is applied. It is explanatory drawing for demonstrating the dew condensation which occurs in the house to which a heat radiating member is applied. It is a schematic perspective view which shows the inside of the roof member of a house. It is explanatory drawing for demonstrating the control device of a heat dissipation system. It is a flowchart which shows an example of the flow of the control process executed by the control device of a heat dissipation system. FIG. 5 is a schematic perspective view showing a vinyl house to which a heat radiating member is applied, which is a first modification of the tenth embodiment. FIG. 5 is a schematic perspective view of a house in which a heat radiating member is applied to a photovoltaic power generation panel, which is a second modification of the tenth embodiment.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following embodiments, the same reference numerals may be assigned to parts that are the same as or equivalent to those described in the preceding embodiments, and the description thereof may be omitted. Further, when only a part of the component is described in the embodiment, the component described in the preceding embodiment can be applied to the other part of the component. The following embodiments can be partially combined with each other as long as the combination does not cause any trouble, even if not explicitly stated.

(First Embodiment)
The first embodiment will be described with reference to FIGS. 1 to 5. In this embodiment, the heat radiating member 20 of the present disclosure is applied to the body 11 of an automobile 10 which is one of the moving bodies.

As shown in FIGS. 1 and 2, the automobile 10 has a body 11 that forms an outer shell that is exposed to sunlight. The body 11 includes a bonnet 111 that covers an accommodating portion of a traveling drive device and a roof member 112 that constitutes a ceiling portion of the automobile 10.

The roof member 112 is a member that is directly exposed to sunlight like the bonnet 111 and the like, and becomes particularly hot in the hot sun such as in summer. When the temperature of the roof member 112 rises, the heat of the roof member 112 moves into the vehicle interior, so that the temperature inside the vehicle interior rises and the comfort inside the vehicle interior is impaired. Further, since the roof member 112 has fewer elements that cause ventilation resistance than other parts, convective heat transfer due to traveling wind is likely to occur.

On the other hand, it is conceivable to secure the comfort in the vehicle interior by operating the air conditioner installed in the automobile 10, but in this case, the operation of the air conditioner under a high load state is continued. As a result, the consumption of fuel or electric power of the automobile 10 is significantly increased.

Therefore, in the present embodiment, the heat radiating member 20 is applied to the outside of the roof member 112 of the automobile 10 to suppress the temperature rise in the vehicle interior. Unlike the air conditioner, the heat radiating member 20 does not require power or the like, and even if the heat radiating member 20 is applied to the automobile 10, the consumption of fuel or electric power is hardly increased.

Here, in the present embodiment, the automobile 10 corresponds to the structure of the present disclosure, and the roof member 112 of the automobile 10 corresponds to the exterior member forming the outer shell of the structure of the present disclosure.

The heat radiating member 20 is configured to be able to radiate the heat of the roof member 112 of the automobile 10 to the outside while reflecting sunlight. In addition, the heat radiating member 20 is configured to be capable of suppressing the roof member 112 of the automobile 10 from being warmed by the convective heat transfer caused by the natural wind or the traveling wind during the traveling of the automobile 10.

The heat radiating member 20 is configured as a planar sheet having a thickness of a predetermined value (for example, 10 mm) or less. The form of the heat radiating member 20 is not limited to the sheet, and may be a film or coating thinner than the sheet.

As shown in FIG. 3, the heat radiating member 20 suppresses convective heat transfer due to the movement of air outside the vehicle interior, the reflecting portion 21 that reflects sunlight, the radiating portion 22 that radiates the heat of the roof member 112 to the outside. The heat insulating portion 23 is provided. In this embodiment, the air outside the vehicle interior corresponds to the external fluid flowing outside.

The reflecting unit 21 is configured as a film that reflects sunlight. Specifically, the reflective portion 21 is made of a metal film containing silver, aluminum, gold, or copper. The reflective portion 21 has, for example, an average thickness in the range of 30 nm to 1000 nm. The reflective portion 21 is not limited to the film, and may be made of, for example, a metal sheet having an average thickness in the range of 100 nm to 1 μm. Further, the reflective portion 21 may be made of any other material as long as it can reflect sunlight, and is not limited to metal.

The reflecting portion 21 is positioned on the outside of the heat radiating member 20 so that it can come into contact with the roof member 112. That is, the reflecting portion 21 is positioned near the roof member 112 in the heat radiating member 20.

The radiation unit 22 is configured as a film that radiates heat from the inside to the outside. The radiation unit 22 is configured as a planar sheet containing a polymer 221 that transmits sunlight and radiates infrared rays to the outside as a component. The radiating portion 22 may be made of a composite material using the polymer 221 as a base material.

Examples of the polymer 221 include polyolefin, polymethylmethacrylate, polymethylpentene, polyethylene, polystyrene and the like. The polymer 221 is not limited to these, and may be, for example, polyethylene terephthalate, polycarbonate, polytetrafluoroethylene, or a combination thereof.

In the radiation unit 22, non-polymer particles 222 are added to the polymer 221 formed in a sheet shape. That is, the radiating portion 22 contains the non-polymer particles 222 dispersed in the polymer 221 in addition to the polymer 221. The non-polymer particles 222 increase heat radiation to the outside by a Mie scattering effect, absorption resonance, or the like.

The non-polymer particles 222 are metal or semiconductor oxide materials such as silicon dioxide (SiO2), calcium carbonate (CaCO3), silicon carbide (SiC), zinc oxide (ZnO), titanium dioxide (TiO2), and alumina (TiO2). Consists of. If it is possible to increase the heat radiation to the outside, the radiating unit 22 may have a polymer having characteristics different from that of the polymer 221 added in place of the non-polymer particles 222, for example.

The radiating portion 22 has an average thickness larger than the average particle size of the non-polymer particles 222. The radiating portion 22 has, for example, an average thickness in the range of 10 μm to 3 mm. The radiation unit 22 is not limited to the film, but may be configured as a sheet.

The radiating portion 22 is arranged on the opposite side of the roof member 112 with respect to the reflecting portion 21. The radiating portion 22 is laminated on the reflecting portion 21. That is, the reflecting portion 21 and the radiating portion 22 are configured as a laminated body St. The reflecting portion 21 is arranged between the radiating portion 22 and the roof member 112.

The heat insulating portion 23 suppresses heat transfer due to convective heat transfer due to natural wind or running wind. The heat insulating portion 23 is configured to include a heat insulating body 231 made of resin having heat insulating properties. The heat insulating body 231 is configured as a planar sheet or film. The heat insulating body 231 is made of a transparent sheet or film so as to be able to transmit electromagnetic waves of radiative cooling. The heat insulating body 231 may be made of, for example, a translucent sheet or film as long as it can transmit electromagnetic waves.

The thickness Ti of the heat insulating portion 23 as a whole is larger than the thickness Tr of the reflecting portion 21 and the thickness Tp of the radiating portion 22. It is desirable that the thickness Ti of the heat insulating portion 23 is larger than the thickness Tst of the laminated body St of the reflecting portion 21 and the radiating portion 22 so that sufficient thermal resistance can be secured.

The heat insulating portion 23 is positioned on the outside of the heat radiating member 20 so as to be exposed to natural wind and running wind. That is, the heat insulating portion 23 is arranged on the side opposite to the roof member 112 with respect to the radiating portion 22. The radiating portion 22 is arranged between the heat insulating portion 23 and the reflecting portion 21.

The heat radiating member 20 can be manufactured by, for example, a roll-to-roll method. That is, the heat radiating member 20 is obtained by laminating each of the reflecting portion 21, the radiating portion 22, and the heat insulating portion 23 wound in a roll shape in this order, and then winding the heat radiating member 20 on the roll again. The heat radiating member 20 may be manufactured by a method other than the roll-to-roll method.

When the heat radiating member 20 configured as described above is applied to the roof member 112 of the automobile 10, sunlight is reflected by the reflecting portion 21 and the heat of the roof member 112 is transferred to the outside by the radiating portion 22 by using radiative cooling. Radiate.

Here, FIG. 4 is a schematic view of a heat radiating sheet CE as a comparative example of the heat radiating member 20 of the present embodiment. The heat dissipation sheet CE of the comparative example is configured as a laminated body in which the radiation layer PL and the reflection layer RL are laminated. The heat radiating sheet CE of the comparative example does not have a configuration corresponding to the heat insulating portion 23 of the heat radiating member 20 of the present embodiment.

The heat radiating sheet CE of the comparative example reflects sunlight by the reflective layer RL as shown by the arrow RF in FIG. 4, and the roof member 112 by the radiant layer PL by utilizing radiative cooling as shown by the arrow HD in FIG. Radiates the heat of the roof to the outside. In the automobile 10 to which the heat radiating sheet CE of the comparative example is applied, the temperature rise of the roof member 112 due to sunlight is suppressed, and the roof member 112 is cooled by radiative cooling.

However, when the heat radiating sheet CE of the comparative example is applied to the automobile 10, for example, as shown by the arrow AF in FIG. 4, when the airflow passes over the surface of the sheet due to the traveling wind during the vehicle traveling, the roof member is subjected to convective heat transfer. 112 gets warm. That is, even if the heat radiating sheet CE of the comparative example is applied to the automobile 10, it is difficult to obtain the effect of suppressing the temperature rise in the vehicle interior.

On the other hand, the heat radiating member 20 of the present embodiment has a heat insulating portion 23 as shown in FIG. Therefore, the heat radiating member 20 can suppress the temperature rise of the roof member 112 due to the convective heat transfer accompanying the traveling wind by the heat insulating portion 23. In addition, since the heat insulating portion 23 has a structure capable of transmitting electromagnetic waves, the reflecting portion 21 reflects sunlight as shown by the arrow RF in FIG. 5, and is indicated by the arrow HD in FIG. As described above, the heat of the roof member 112 can be radiated to the outside by the radiating portion 22.

Here, in order to suppress the temperature rise of the structure due to convective heat transfer due to the movement of the external fluid, it is considered that a configuration in which the heat insulating portion 23 is arranged between the radiating portion 22 and the structure is also effective. However, when the heat insulating portion 23 is arranged between the radiating portion 22 and the structure, the radiating portion 22 and the structure are thermally separated by the heat insulating portion 23, and the heat of the structure is externalized by the radiating portion 22. It will not be possible to radiate to.

On the other hand, in the heat radiating member 20 of the present embodiment, the heat insulating portion 23 is provided on the side opposite to the roof member 112 which is a structure with the radiating portion 22 as a reference. Therefore, the heat insulating portion 23 can suppress the convective heat transfer due to the traveling wind, and the radiating portion 22 can radiate the heat of the roof member 112 to the outside.

Specifically, the heat insulating portion 23 includes a heat insulating body 231 made of resin having heat insulating properties. According to this, it is possible to realize a structure capable of transmitting electromagnetic waves while suppressing convective heat transfer due to running wind.

Further, the thickness Ti of the heat insulating portion 23 is larger than the thickness Tp of the radiating portion 22. According to this, the heat of the roof member 112 can be radiated to the outside by the radiating portion 22, and the convective heat transfer due to the traveling wind can be sufficiently suppressed.

Here, a moving body such as the automobile 10 is affected not only by the natural wind but also by the convective heat transfer due to the traveling wind accompanying the movement. Therefore, the heat radiating member 20 of the present embodiment is suitable for a moving body including the automobile 10. That is, if the heat radiating member 20 is applied to the automobile 10, the heat insulating portion 23 can suppress the convective heat transfer and the radiating portion 22 can radiate the heat of the automobile 10 to the outside.

(First Modified Example of First Embodiment)
In the first embodiment, the heat radiating member 20 is applied to the roof member 112 of the automobile 10, but the application target of the heat radiating member 20 is not limited to this.

For example, as shown in FIG. 6, the heat radiating member 20 may be applied to the roof antenna 12, which is one of the mounted objects mounted on the automobile 10. The roof antenna 12 is an antenna mounted on the roof member 112 of the automobile 10. The heat radiating member 20 can be applied to the exterior cover 121 exposed to the outside in the roof antenna 12, for example, as shown by the dot pattern in FIG.

(Second modification of the first embodiment)
Further, for example, as shown in FIG. 8, the heat radiating member 20 may be applied to the in-vehicle camera 13 which is one of the mounted objects in the automobile 10. The in-vehicle camera 13 is a camera mounted near the windshield W of the automobile 10. The heat radiating member 20 is applied to the periphery of the imaging unit 130 of the exterior cover 131 of the vehicle-mounted camera 13, as shown by the dot pattern in FIG. 9, for example.

(Third variant of the first embodiment)
Further, for example, as shown in FIG. 10, the heat radiating member 20 may be applied to the roof-mounted air conditioner 14 mounted on the roof member 112 of the automobile 10. The air conditioner 14 is a device that air-conditions the interior of the vehicle. The heat radiating member 20 is applied to the exterior cover 141 of the air conditioner 14, for example, as shown by the dot pattern in FIG. According to this, the load of the air conditioner 14 can be reduced.

(Other Modified Examples of First Embodiment)
In the first embodiment, the heat radiating member 20 applied to the automobile 10 is illustrated, but the application target of the heat radiating member 20 is not limited to this. The heat radiating member 20 can be widely applied to moving bodies such as bicycles, trains, airplanes, and ships other than automobiles 10.

(Second Embodiment)
Next, the second embodiment will be described with reference to FIG. Since the present embodiment includes the same configuration as the first embodiment, the parts different from the first embodiment will be mainly described below.

As shown in FIG. 11, the heat radiating member 20 includes a gas layer 234 in which the heat insulating portion 23 is set between the external fluid and the radiating portion 22. The heat insulating portion 23 includes a gas layer 234 interposed between the pair of heat insulating bodies 232 and 233 and the pair of heat insulating bodies 232 and 233.

The pair of heat insulating bodies 232 and 233 are composed of a resin film or sheet. The thicknesses Ti1 and Ti2 of the pair of heat insulating bodies 232 and 233 are sufficiently smaller than the thickness Ti3 of the gas layer 234.

The gas layer 234 is formed between the pair of heat insulating bodies 232 and 233 as, for example, an air-filled air layer or a evacuated vacuum layer. As described above, by including the gas layer 234 having a low thermal conductivity, it is possible to sufficiently secure the heat insulating property of the heat radiating member 20. The heat radiation member 20 has a thickness Ti as a whole larger than the thickness Tr of the reflection portion 21 and the thickness Tp of the radiation portion 22.

Other configurations are the same as in the first embodiment. The heat radiating member 20 of the present embodiment can obtain the same effect as that of the first embodiment from the configuration common to or equal to that of the first embodiment.

In particular, the heat radiating member 20 of the present embodiment includes a gas layer 234 in the heat insulating portion 23. According to this, it is possible to realize a structure capable of transmitting electromagnetic waves while suppressing convective heat transfer due to the movement of an external fluid. The gas layer 234 composed of a gas having a lower thermal conductivity than the solid sufficiently suppresses convective heat transfer due to the movement of the external fluid as compared with the one in which the heat insulating portion 23 is composed only of the solid, or as a whole. The thickness of the gas can be reduced.

(Modified example of the second embodiment)
In the second embodiment, the gas layer 234 formed between the pair of heat insulating bodies 232 and 233 is illustrated, but the heat insulating portion 23 is not limited to this. In the heat insulating portion 23, for example, as shown in FIG. 12, a gas layer 234 may be formed between the heat insulating body 232 and the radiating portion 22. In this case, since the heat insulating body 233 can be omitted, the thickness of the heat insulating portion 23 as a whole can be suppressed.

(Third Embodiment)
Next, the third embodiment will be described with reference to FIG. Since the present embodiment includes the same configuration as the first embodiment, the parts different from the first embodiment will be mainly described below.

As shown in FIG. 13, the heat radiating member 20 includes a heat storage unit 24 for accumulating heat in addition to the reflecting unit 21, the radiating unit 22, and the heat insulating unit 23. The heat storage unit 24 accumulates cold heat by being cooled and solidified by radiative cooling. The heat storage unit 24 is composed of, for example, a film or a sheet containing paraffin or hydrate as a cold storage material so that cold heat can be stored.

The heat storage unit 24 is provided on the opposite side of the heat insulating unit 23 with the radiation unit 22 as a reference. The heat storage unit 24 is provided on the side opposite to the radiation unit 22 with reference to the reflection unit 21. Specifically, the heat storage unit 24 is arranged between the reflection unit 21 and the roof member 112 so as to be in thermal contact with the roof member 112. Further, the thickness Ts of the heat storage unit 24 is larger than the thickness Tr of the reflection unit 21 and the thickness Tp of the radiation unit 22 so that the cold storage material can be easily filled.

Other configurations are the same as in the first embodiment. The heat radiating member 20 of the present embodiment can obtain the same effect as that of the first embodiment from the configuration common to or equal to that of the first embodiment.

Here, for example, when sunlight does not act on the heat radiating member 20 such as at night, heat absorption by sunlight is suppressed as compared with daytime when sunlight acts, so that heat dissipation to the outside becomes remarkable. , The temperature of the heat radiating member 20 tends to decrease. Therefore, if the heat storage unit 24 is added to the heat radiating member 20, for example, cold heat can be stored in the heat storage unit 24 under environmental conditions in which the amount of heat absorbed from the outside is reduced. According to this, the cold heat accumulated in the heat storage unit 24 can suppress the temperature rise of the roof member 112 under the environmental condition in which the amount of heat absorbed from the outside increases.

Further, in the heat radiating member 20, the heat storage portion 24 is arranged on the opposite side of the heat insulating portion 23 with the reflection portion 21 as a reference. According to this, since the temperature rise of the heat storage unit 24 due to the heat of sunlight is suppressed, the temperature rise of the roof member 112 under the environmental condition in which the amount of heat absorbed from the outside increases can be sufficiently suppressed.

Here, in the third embodiment, an example in which the heat storage unit 24 is added to the heat radiating member 20 described in the first embodiment is illustrated, but the heat radiating member 20 is not limited to this. The heat radiating member 20 may have a configuration in which the heat storage unit 24 is added to the one described in the second embodiment.

(Modified example of the third embodiment)
In the third embodiment, the heat storage unit 24 is arranged between the reflection unit 21 and the roof member 112, but the arrangement form of the heat storage unit 24 is not limited to this. As shown in FIG. 14, the heat storage unit 24 may be arranged on the opposite side of the reflection unit 21 with respect to, for example, the roof member 112. In this case, in the heat radiating member 20, the heat storage portion 24 is formed separately from the reflection portion 21, the radiating portion 22, the heat insulating portion 23, and the like. Although not shown, the heat storage unit 24 may be arranged between the reflection unit 21 and the radiation unit 22, for example.

(Fourth Embodiment)
Next, the fourth embodiment will be described with reference to FIG. Since the present embodiment includes the same configuration as the first embodiment, the parts different from the first embodiment will be mainly described below.

As shown in FIG. 15, the heat radiating member 20 includes a reflection preventing portion 25 and a protective portion 26 in addition to the reflecting portion 21, the radiating portion 22, and the heat insulating portion 23.

The antireflection unit 25 is configured as an antireflection film that allows sunlight to pass through without reflecting sunlight. The antireflection portion 25 is provided on the opposite side of the reflection portion 21 with the radiation portion 22 as a reference. Specifically, the antireflection portion 25 is arranged between the radiation portion 22 and the heat insulating portion 23.

The protective portion 26 is intended for waterproofing, protection of the radiating portion 22 from ultraviolet rays, and the like, and is made of a film having waterproof properties and capable of blocking ultraviolet rays. The protection unit 26 is provided on the opposite side of the reflection unit 21 with the radiation unit 22 as a reference. Specifically, the protection unit 26 is arranged between the radiation unit 22 and the reflection prevention unit 25.

Other configurations are the same as in the first embodiment. The heat radiating member 20 of the present embodiment can obtain the same effect as that of the first embodiment from the configuration common to or equal to that of the first embodiment.

Here, in the fourth embodiment, the heat radiating member 20 described in the first embodiment is illustrated by adding the antireflection unit 25 and the protective unit 26, but the heat radiating member 20 is not limited to this. The heat radiating member 20 may have a configuration in which an antireflection unit 25 and a protection unit 26 are added to those described in the second and third embodiments.

(Fifth Embodiment)
Next, the fifth embodiment will be described with reference to FIG. Since the present embodiment includes the same configuration as the first embodiment, the parts different from the first embodiment will be mainly described below.

As shown in FIG. 16, the heat radiating member 20 includes a protective portion 26 and a barrier portion 27 in addition to the reflecting portion 21, the radiating portion 22, and the heat insulating portion 23. The protection unit 26 is configured in the same manner as that described in the fourth embodiment. The barrier portion 27 is provided to protect the reflective portion 21 from corrosion due to permeation of gas or water molecules and to improve the metal adhesion of the reflective portion 21 to the radiating portion 22. The barrier portion 27 is arranged between the radiation portion 22 and the reflection portion 21.

The radiation unit 22 of the present embodiment is arranged between the protection unit 26 and the barrier unit 27 so as to be sandwiched between the protection unit 26 and the barrier unit 27. That is, in the radiating portion 22, both sides of the heat radiating member 20 in the thickness direction are protected by the protective portion 26 and the barrier portion 27.

Other configurations are the same as in the first embodiment. The heat radiating member 20 of the present embodiment can obtain the same effect as that of the first embodiment from the configuration common to or equal to that of the first embodiment.

Here, in the fifth embodiment, the heat radiating member 20 described in the first embodiment to which the protective portion 26 and the barrier portion 27 are added is illustrated, but the heat radiating member 20 is not limited to this. The heat radiating member 20 may have a configuration in which a protective portion 26 and a barrier portion 27 are added to those described in the second and third embodiments.

(Sixth Embodiment)
Next, the sixth embodiment will be described with reference to FIG. Since the present embodiment includes the same configuration as the first embodiment, the parts different from the first embodiment will be mainly described below.

As shown in FIG. 17, the heat radiating member 20 includes a reflection prevention unit 25, a protection unit 26, and a barrier unit 27 in addition to the reflection unit 21, the radiation unit 22, and the heat insulation unit 23.

The antireflection unit 25 and the protection unit 26 are configured in the same manner as those described in the fourth embodiment. The antireflection portion 25 and the protection portion 26 are arranged between the radiation portion 22 and the heat insulating portion 23. Further, the barrier portion 27 is configured in the same manner as that described in the fifth embodiment. The barrier portion 27 is arranged between the radiation portion 22 and the reflection portion 21.

Other configurations are the same as in the first embodiment. The heat radiating member 20 of the present embodiment can obtain the same effect as that of the first embodiment from the configuration common to or equal to that of the first embodiment.

Here, in the sixth embodiment, the heat radiating member 20 described in the first embodiment is illustrated by adding the protective portion 26 and the barrier portion 27, but the heat radiating member 20 is not limited to this. The heat radiating member 20 may have a configuration in which an antireflection portion 25, a protection portion 26, and a barrier portion 27 are added to those described in the second and third embodiments.

(7th Embodiment)
Next, the seventh embodiment will be described with reference to FIG. Since the present embodiment includes the same configuration as the sixth embodiment, the parts different from the sixth embodiment will be mainly described below.

As shown in FIG. 18, the heat radiating member 20 includes a heat conductive portion 28 in addition to the reflecting portion 21, the radiating portion 22, the heat insulating portion 23, the antireflection portion 25, the protective portion 26, and the barrier portion 27.

The heat conductive portion 28 promotes the transfer of heat from the roof member 112 to the radiating portion 22. The heat conductive portion 28 is composed of, for example, a heat conductive sheet having a lower thermal conductivity than the roof member 112. The heat conductive portion 28 is arranged between the reflective portion 21 and the roof member 112.

Other configurations are the same as those in the sixth embodiment. The heat radiating member 20 of the present embodiment can obtain the same effect as that of the sixth embodiment from the same configuration or the same configuration as that of the sixth embodiment.

Here, in the seventh embodiment, an example in which the heat conductive portion 28 is added to the heat radiating member 20 described in the sixth embodiment is illustrated, but the heat radiating member 20 is not limited to this. The heat radiating member 20 may have a configuration in which the heat conductive portion 28 is added to those described in the second to fifth embodiments.

(8th Embodiment)
Next, the eighth embodiment will be described with reference to FIGS. 19 to 21. Since the present embodiment includes the same configuration as the first embodiment, the parts different from the first embodiment will be mainly described below.

As shown in FIGS. 19 and 20, the present embodiment applies the heat radiating member 20 of the present disclosure to the upper lid portion 31 of the cooler box 30, which is one of the portable devices, instead of the moving body. The cooler box 30 is, for example, a portable device installed on a bicycle BY and transported to a destination by a user. The cooler box 30 may be installed on a moving body other than the bicycle BY, or may be directly held by the user.

The cooler box 30 is a hollow box body, and an upper lid portion 31 for taking in and out the contents is provided on the upper portion thereof. In the present embodiment, the cooler box 30 corresponds to the structure, and the upper lid portion 31 corresponds to the exterior member forming the outer shell.

In the cooler box 30, the upper lid portion 31 is more easily exposed to sunlight than other parts. Further, since the upper lid portion 31 has fewer elements that provide ventilation resistance than other portions, convective heat transfer due to natural wind outside the box is likely to occur. Therefore, the heat radiating member 20 of the present disclosure is installed on the upper lid portion 31 of the cooler box 30. The heat radiating member 20 may be installed in a portion other than the upper lid portion 31 as long as it is a portion of the cooler box 30 exposed to sunlight.

In the heat radiating member 20 of the present embodiment, the laminated body St of the reflecting portion 21 and the radiating portion 22 and the heat insulating portion 23 are separately formed, and the heat insulating portion 23 is configured to be detachable from the laminated body St. As shown in FIG. 21, the heat radiating member 20 can attach the heat insulating portion 23 to the laminated body St, or remove the heat insulating portion 23 from the laminated body St to which the heat insulating portion 23 is attached.

Other configurations are the same as in the first embodiment. The heat radiating member 20 of the present embodiment can obtain the same effect as that of the first embodiment from the configuration common to or equal to that of the first embodiment.

In this embodiment, the heat radiating member 20 is applied to the cooler box 30 which is a portable device. According to this, the heat insulating portion 23 can suppress the convective heat transfer caused by the wind generated around the cooler box 30, and the radiating portion 22 can radiate the heat of the cooler box 30 to the outside. As a result, the temperature of the contents of the cooler box 30 can be maintained at a low temperature without energy.

Further, the heat radiating member 20 of the present embodiment is configured such that the heat insulating portion 23 can be attached to and detached from the laminated body St of the reflecting portion 21 and the radiating portion 22. According to this, since the heat insulating portion 23 can be added or removed, it is possible to provide the heat radiating member 20 suitable for the surrounding environment of the cooler box 30. The configuration in which the heat insulating portion 23 can be attached to and detached from the laminated body St can be applied to other than the present embodiment.

Here, a portable device such as a cooler box 30 is susceptible to not only natural wind but also traveling wind generated during transportation, like a moving body. Therefore, the heat radiating member 20 is suitable for portable equipment.

In the eighth embodiment, an example in which the heat radiating member 20 described in the first embodiment is applied to the cooler box 30 has been described, but the heat radiating member 20 described in the second to seventh embodiments is applied to the cooler box 30. It may have been done.

When the heat radiating member 20 including the heat storage unit 24 is applied to the cooler box 30, for example, cold heat can be accumulated in the heat storage unit 24 at night when the cooler box 30 is difficult to open and close, and the cold heat can be used during the daytime. it can. According to this, the temperature of the contents of the cooler box 30 can be maintained at a low temperature without energy.

(Modified example of the eighth embodiment)
In the eighth embodiment, the cooler box 30 is illustrated as the portable device, but the portable device is not limited to this. The portable device may be, for example, a container CN carried by the trailer T, as shown in FIG. The heat radiating member 20 can be applied to the upper surface portion R exposed to the outside in the container CN, for example, as shown by the dot pattern in FIG. In this modification, the container CN corresponds to the structure, and the upper surface portion R corresponds to the exterior member forming the outer shell.

(9th Embodiment)
Next, the ninth embodiment will be described with reference to FIG. 23. Since the present embodiment includes the same configuration as the first embodiment, the parts different from the first embodiment will be mainly described below.

As shown in FIG. 23, in the present embodiment, the heat radiating member 20 of the present disclosure is applied to the vending machine 40 that provides the beverage D, not the moving body. The vending machine 40 is configured as an outdoor installation type device exposed to sunlight. The vending machine 40 can adjust the temperature of the beverage D so that the beverage D having an appropriate temperature can be provided to the user. The vending machine 40 is not limited to the beverage D, and may be configured to provide food, for example. Further, the vending machine 40 is not limited to providing food and drink to the user for a fee, and may be provided free of charge. In the present embodiment, the vending machine 40 corresponds to the providing device that provides the cold and hot food to the user, and the beverage D corresponds to the cold and hot food.

The vending machine 40 has a housing 41 that forms an outer shell. The housing 41 is a hollow box, and the beverage D to be provided to the user is housed inside the housing 41. In this embodiment, the vending machine 40 corresponds to the structure, and the housing 41 corresponds to the exterior member forming the outer shell.

In the housing 41, the top plate portion 411 is more easily exposed to sunlight than other parts. Further, since the top plate portion 411 has fewer elements that cause ventilation resistance than other portions, convective heat transfer due to natural wind outside the machine is likely to occur. Therefore, the heat radiating member 20 of the present disclosure is installed on the top plate portion 411 of the housing 41. The heat radiating member 20 may be installed in a portion other than the top plate portion 411 as long as it is a portion of the housing 41 that is exposed to sunlight.

Other configurations are the same as in the first embodiment. The heat radiating member 20 of the present embodiment can obtain the same effect as that of the first embodiment from the configuration common to or equal to that of the first embodiment.

In this embodiment, the heat radiating member 20 is applied to the vending machine 40 which is the providing device. According to this, the heat insulating portion 23 suppresses the convective heat transfer caused by the wind generated around the vending machine 40, and the radiating portion 22 can radiate the heat of the vending machine 40 to the outside. As a result, it is possible to reduce the energy required for adjusting the temperature of the cold and hot material.

In the ninth embodiment, an example in which the heat radiating member 20 described in the first embodiment is applied to the vending machine 40 has been described, but the heat radiating member 20 described in the second to seventh embodiments has been described for the vending machine 40. May be applied.

(10th Embodiment)
Next, the tenth embodiment will be described with reference to FIGS. 24 to 30. Since the present embodiment includes the same configuration as the first embodiment, the parts different from the first embodiment will be mainly described below.

As shown in FIGS. 24 and 25, in the present embodiment, the heat radiating member 20 of the present disclosure is applied not to a moving body but to a house 50 which is one of the buildings. The house 50 has an outer wall portion 51 that forms a side surface portion of the outer shell of the house 50, and a roof portion 52 that forms a ceiling portion of the outer shell of the house 50. In the present embodiment, the house 50 corresponds to the structure, and the roof portion 52 corresponds to the exterior member forming the outer shell.

The roof portion 52 is configured as a gable roof having a triangular side surface shape when viewed from a predetermined direction. The roof portion 52 may be composed of a hipped roof having a slope in four directions, a one-sided roof having a slope in one direction, a flat roof having no slope, and the like.

In the house 50, the roof portion 52 is more easily exposed to sunlight than other parts. Further, since the roof portion 52 has fewer elements that cause ventilation resistance than other portions, convective heat transfer due to the natural outdoor wind is likely to occur. Therefore, the heat radiating member 20 of the present disclosure is installed on the roof portion 52 of the house 50. The heat radiating member 20 may be installed in a portion other than the roof portion 52 as long as it is a portion of the house 50 exposed to sunlight.

In the house 50 configured in this way, the heat radiating member 20 is installed on the roof portion 52. Therefore, the heat insulating portion 23 of the heat radiating member 20 can suppress the convective heat transfer due to the natural wind, and the radiating portion 22 can radiate the heat of the roof portion 52 of the house 50 to the outside.

Here, at night when sunlight does not act, the amount of heat absorbed from the outside by the roof portion 52 decreases as compared with daytime when sunlight acts. On the other hand, the amount of heat radiated to the outside in the roof portion 52 hardly changes between nighttime and daytime. Therefore, as shown in FIG. 26, at night when sunlight does not act, the temperature of the roof portion 52 drops as compared with the daytime when sunlight acts, so that dew condensation C is likely to occur inside the roof portion 52. .. In other words, if the heat radiating member 20 is installed on the roof portion 52, water can be generated inside the roof portion 52.

Therefore, the roof portion 52 of the present embodiment is configured such that the combination of the heat radiating member 20 and the roof portion 52 functions as a water generating means. The combination of the heat radiating member 20 and the roof portion 52 constitutes a heat radiating system.

As shown in FIG. 27, the roof portion 52 is provided with a guide 521 for guiding water generated by dew condensation (that is, dew condensation water) to a water storage device 60 described later. The guide 521 is for collecting the condensed water generated in the roof portion 52 in the water storage device 60. As shown in FIG. 28, the guide 521 is composed of a plurality of drainage grooves 521a extending from the ridge portion 52a located at the upper end of the roof portion 52 toward the eaves portion 52b located at the lower end of the roof portion 52. .. The drainage groove 521a has a V-shaped cross section. The drainage groove 521a may have a cross-sectional shape other than the V shape.

Here, if the humidity near the roof portion 52 decreases due to dew condensation, the amount of dew condensation water decreases. Therefore, the roof portion 52 is provided with a fan 522 for blowing high-humidity air inside the roof portion 52. In the present embodiment, the fan 522 corresponds to a dew condensation promoting member that promotes the generation of dew condensation water.

The fan 522 is composed of an electric blower driven by energization. The fan 522 has an air blowing capacity adjusted according to a control signal from the control unit 100 described later. In the drawings, a general electric fan commercially available as a fan 522 is shown for easy understanding, but the fan 522 may be composed of a fan other than the electric fan shown in the figure.

The water storage device 60 includes a water storage tank 61 for storing condensed water. The water storage tank 61 is composed of, for example, a cylindrical drum. It is desirable that the water storage tank 61 is arranged under the roof portion 52 or inside the house 50 so as not to be exposed to sunlight. The water storage device 60 may include an intermediate member for flowing condensed water from the guide 521 to the water storage tank 61.

Next, the control unit 100, which is the electronic control unit of the heat dissipation system, will be described with reference to FIG. 29.

As shown in FIG. 29, the control unit 100 includes a computer including a processor 100a and a memory 100b, and peripheral circuits thereof. The memory 100b is composed of a non-transitional substantive storage medium.

A drive device such as a fan 522 is connected to the output side of the control unit 100. Further, a temperature sensor 101 for detecting the temperature of the roof portion 52, a humidity sensor 102 for detecting the humidity in the vicinity of the roof portion 52, and the like are connected to the input side of the control unit 100.

In this way, various detection signals are input to the control unit 100. The control unit 100 controls the device on the output side by performing calculations and processing based on a program stored in the memory 100b for various input signals and the like. The control unit 100 of the present embodiment includes a promotion control unit 100c that controls the fan 522 according to the temperature of the roof portion 52 and the like.

Next, the control process of the fan 522 executed by the control unit 100 will be described with reference to FIG. The control routine shown in FIG. 30 is executed by the control unit 100 periodically or irregularly.

As shown in FIG. 30, the control unit 100 reads various signals connected to the input side in step S10. Specifically, the control unit 100 reads the detection signal TR of the temperature sensor 101 and the detection signal RM of the humidity sensor 102.

Subsequently, in step S20, the control unit 100 determines whether or not the detection signal RM of the humidity sensor 102 is equal to or less than the reference signal RMth corresponding to the predetermined reference humidity in the detection signal RM of the humidity sensor 102.

As a result, when the detection signal RM of the humidity sensor 102 becomes equal to or less than the reference signal RMth, the control unit 100 energizes the fan 522 in step S30 and operates the fan 522 at a predetermined rotation speed. According to this, since the humidity in the vicinity of the roof portion 52 is easily maintained in a high state, it is possible to continuously generate dew condensation water and secure a sufficient amount of water generation.

On the other hand, when the detection signal RM of the humidity sensor 102 becomes larger than the reference signal RMth, the control unit 100 stops energizing the fan 522 and stops the operation of the fan 522 in step S30. In this way, by stopping the operation of the fan 522 when the humidity near the roof portion 52 is high, it is possible to suppress the energy consumption associated with the generation of water.

Subsequently, in step S40, the control unit 100 determines whether or not the detection signal TR of the temperature sensor 101 is equal to or lower than the reference signal TRth corresponding to the vicinity of the temperature (for example, 0 °) at which water freeze starts. ..

Then, the control unit 100 proceeds to step S60 when the detection signal TR of the temperature sensor 101 is equal to or less than the reference signal TRth, and skips step S60 when the detection signal TR of the temperature sensor 101 becomes larger than the reference signal TRth. And exit this control process.

In the control process of step S60, when the operation of the fan 522 is stopped, the fan 522 is energized to operate the fan 522, and when the fan 522 is operating, the rotation speed of the fan 522 is increased. Increase the amount of electricity applied to 522. According to this, since the freezing of the dew condensation water inside the roof portion 52 is suppressed, it is possible to suppress the stoppage of water recovery due to the freezing of the dew condensation water.

Other configurations are the same as in the first embodiment. The heat radiating member 20 of the present embodiment can obtain the same effect as that of the first embodiment from the configuration common to or equal to that of the first embodiment.

Here, buildings such as houses 50 are affected by convective heat transfer due to the natural wind. Therefore, if the heat radiating member 20 is applied to the house 50, the heat insulating portion 23 can suppress the convective heat transfer due to the natural wind, and the radiating portion 22 can radiate the heat of the house 50 to the outside.

Since the roof portion 52 of the house 50 of the present embodiment is provided with a guide 521 leading to the water storage device 60, water can be generated by utilizing the dew condensation generated on the roof portion 52 of the house 50. Such a heat dissipation system is suitable for an area where the amount of evaporation is larger than the amount of rainfall, such as a desert. If the heat dissipation system is applied to such an area, it is possible to generate water at night or the like while suppressing the temperature rise during the day without inputting energy from the outside.

Further, if the fan 522 is provided for the roof portion 52, it is possible to maintain a high humidity in the vicinity of the roof portion 52 by blowing air from the fan 522. As a result, the efficiency of water generation in the heat dissipation system can be improved.

Further, if the control unit 100 can control the fan 522 according to the temperature of the roof portion 52, the freezing of the condensed water can be suppressed, so that the water generation efficiency in the heat dissipation system can be improved. ..

(First modification of the tenth embodiment)
In the tenth embodiment, the heat radiating member 20 is applied to the permanently installed house 50, but the application target of the heat radiating member 20 is not limited to this, and the heat radiating member 20 can be applied to various buildings other than the house 50. ..

For example, as shown in FIG. 31, the heat radiating member 20 may be applied to a temporary type greenhouse 70 in a building. In the vinyl house 70, the roofing material 71 is mainly exposed to sunlight. Therefore, the heat radiating member 20 can be applied to the roofing material 71 of the vinyl house 70 as shown by the dot pattern in FIG. In this modification, the vinyl house 70 corresponds to the structure, and the roofing material 71 corresponds to the exterior member forming the outer shell.

(Second modification of the tenth embodiment)
Further, for example, as shown in FIG. 32, the heat radiating member 20 may be applied to the photovoltaic power generation panel SP, which is one of the installation objects installed in the house 50. The photovoltaic power generation panel SP includes a plurality of light receiving units LR and a frame body F surrounding the plurality of light receiving units LR. The heat radiating member 20 is applied to the frame body F of the photovoltaic power generation panel SP, for example, as shown by the dot pattern in FIG. The heat radiating member 20 may be applied to the light receiving unit LR as long as it does not affect the power generation of the photovoltaic power generation panel SP. In this modification, the photovoltaic power generation panel SP corresponds to the structure, and the frame F corresponds to the exterior member forming the outer shell.

(Other Modifications of the Tenth Embodiment)
In the tenth embodiment, the example in which the heat radiating member 20 described in the first embodiment is applied to the building has been described, but the heat radiating member 20 described in the second to seventh embodiments may be applied to the building.

In the tenth embodiment, an example in which the heat radiating system is configured by the combination of the heat radiating member 20 and the roof portion 52 of the house 50 has been described, but the heat radiating system is not limited to this. The heat radiating system may be composed of a combination of the heat radiating member 20 and the roof portion of the water storage device 60 so as to function as a dedicated system for the water generating means, for example. The heat radiating system may be composed of, for example, a combination of the heat radiating member 20 and any of a moving body, a portable device, and a providing device.

Further, the heat radiating system may be composed of a combination of the heat radiating member 20 and the roof portion of the water storage device 60 so as to function as a dedicated system for the water generating means, for example.

In the tenth embodiment, the heat radiating system includes the heat radiating member 20 having the heat insulating portion 23. However, instead of the heat radiating member 20, for example, a heat radiating sheet CE as a comparative example of the first embodiment is used. It may be configured to include.

(Other embodiments)
Although the typical embodiments of the present disclosure have been described above, the present disclosure is not limited to the above-described embodiments, and can be variously modified as follows, for example.

In the above-described embodiment, the mobile body, the building, the portable device, and the provided device are exemplified as the application target of the heat radiating member 20, but the heat radiating member 20 is not limited to this, and the heat radiating member 20 is the moving body, the building, the portable device, and the provided device. It can be widely applied to various devices other than devices.

In the above-described embodiment, an example including a heat radiating member 20 other than the reflecting portion 21, the radiating portion 22, and the heat insulating portion 23 has been described, but the heat radiating member 20 is not limited to the example and is not exemplified. It may be configured.

Needless to say, in the above-described embodiment, the elements constituting the embodiment are not necessarily essential except when it is clearly stated that they are essential and when they are clearly considered to be essential in principle.

In the above-described embodiment, when numerical values such as the number, numerical value, amount, range, etc. of the components of the embodiment are mentioned, when it is clearly stated that it is particularly essential, and in principle, it is clearly limited to a specific number. Except as the case, it is not limited to the specific number.

In the above-described embodiment, when referring to the shape, positional relationship, etc. of a component or the like, the shape, positional relationship, etc., unless otherwise specified or limited in principle to a specific shape, positional relationship, etc. Etc. are not limited.

In the above-described embodiment, when it is described that the external environmental information of the structure such as a house (for example, the humidity outside the vehicle) is acquired from the sensor, the sensor is abolished and the external environment is obtained from the server or cloud outside the structure. It is also possible to receive environmental information. Alternatively, it is possible to abolish the sensor, acquire related information related to the external environment information from a server or cloud outside the structure, and estimate the external environment information from the acquired related information.

The controls described in the present disclosure and methods thereof are realized by a dedicated computer provided by configuring a processor and memory programmed to perform one or more functions embodied by a computer program. May be done. Alternatively, the control device and method thereof described in the present disclosure may be realized by a dedicated computer provided by configuring a processor with one or more dedicated hardware logic circuits. Alternatively, the control device and method thereof described in the present disclosure may be a combination of a processor and memory programmed to perform one or more functions and a processor composed of one or more hardware logic circuits. It may be realized by one or more dedicated computers configured. Further, the computer program may be stored in a computer-readable non-transitional tangible recording medium as an instruction executed by the computer.

(Summary)
According to the first aspect shown in part or all of the above-described embodiment, the heat radiating member has a reflecting portion that reflects sunlight and radiation that is arranged on the opposite side of the structure with respect to the reflecting portion. It is provided with a portion and a heat insulating portion provided on the opposite side of the structure with respect to the radiation portion. The heat insulating portion is capable of transmitting electromagnetic waves.

According to the second viewpoint, the heat insulating portion includes a heat insulating body made of resin having heat insulating properties. According to this, it is possible to realize a structure capable of transmitting electromagnetic waves while suppressing convective heat transfer due to the movement of an external fluid.

According to the third viewpoint, the heat insulating part contains a gas layer set between the radiating part and the external fluid. According to this, it is possible to realize a structure capable of transmitting electromagnetic waves while suppressing convective heat transfer due to the movement of an external fluid. A gas layer composed of a gas having a lower thermal conductivity than a solid sufficiently suppresses convective heat transfer due to the movement of an external fluid as compared with a gas layer having a heat insulating portion composed of only a solid, and has an overall thickness. Can be made smaller.

According to the fourth viewpoint, the total thickness of the heat insulating portion is larger than the thickness of the heat radiating portion. According to this, by making the thickness of the heat insulating portion larger than the thickness of the heat radiating portion, it is possible to sufficiently suppress the convective heat transfer due to the movement of the external fluid while radiating the heat of the structure to the outside by the radiating portion. ..

According to the fifth viewpoint, the heat radiating member includes a heat storage unit that stores heat. The heat storage unit is provided on the side opposite to the heat insulating unit with the radiation unit as a reference. For example, when sunlight does not act such as at night, heat absorption by sunlight is suppressed as compared with daytime when sunlight acts, so that heat dissipation to the outside becomes remarkable. Therefore, if the heat storage unit is provided, for example, cold heat can be stored in the heat storage unit under environmental conditions in which the amount of heat absorbed from the outside is reduced. According to this, the cold heat accumulated in the heat storage unit can suppress the temperature rise of the structure under the environmental condition in which the amount of heat absorbed from the outside increases.

According to the sixth viewpoint, the heat storage unit is provided on the opposite side of the radiation unit with respect to the reflection unit. In this way, if the heat storage unit is arranged on the opposite side of the heat insulation unit with respect to the reflection unit, the temperature rise of the heat storage unit due to heat due to sunlight is suppressed, so that the amount of heat absorbed from the outside increases. The temperature rise of the structure underneath can be sufficiently suppressed.

According to the seventh aspect, the structure includes an outer shell of the moving body or an exterior member forming the outer shell of the load mounted on the moving body. The moving body is affected not only by the natural wind but also by the convective heat transfer caused by the traveling wind accompanying the movement. Therefore, the heat radiating member of the present disclosure is suitable for a moving body. That is, if the heat radiating member is applied to the moving body, the convective heat transfer can be suppressed by the heat insulating portion and the heat of the moving body can be radiated to the outside by the radiating portion.

According to the eighth aspect, the structure includes an exterior member that forms the outer shell of the building or the outer shell of the installation that is installed in the building. The building is affected by convective heat transfer due to the natural wind. Therefore, if the heat radiating member is applied to the building, the heat insulating portion can suppress the convective heat transfer due to the natural wind, and the radiating portion can radiate the heat of the building to the outside. Buildings include not only permanent houses but also temporary ones.

According to the ninth aspect, the structure includes an exterior member that forms the outer shell of the portable device to be carried by the user. In this way, if the heat radiating member is applied to the portable device, the heat insulating portion can suppress the convective heat transfer caused by the wind generated around the portable device, and the radiating section can radiate the heat of the portable device to the outside. ..

According to the tenth viewpoint, the structure includes an exterior member that forms the outer shell of the providing device that provides the cold and hot material to the user. In this way, if the heat radiating member is applied to the providing equipment, the heat insulating portion can suppress the convective heat transfer caused by the wind generated around the providing equipment, and the radiating portion can radiate the heat of the providing equipment to the outside.

According to the eleventh viewpoint, the heat insulating portion is configured to be removable from the laminated body of the reflecting portion and the radiating portion. According to this, since the heat insulating portion can be added or removed, it is possible to provide a heat radiating member suitable for the surrounding environment of the structure.

According to the twelfth viewpoint, the heat radiating system includes an exterior member located on the outside of the structure and a heat radiating member applied to the outside of the exterior member. The heat radiating member includes a reflecting portion that reflects sunlight, a radiating portion that is arranged on the opposite side of the heat radiating member with reference to the reflecting portion, and a heat insulating portion that is provided on the opposite side of the radiating portion with reference to the radiating portion. Has. The heat insulating portion is capable of transmitting electromagnetic waves.

According to this, the heat insulating part can suppress the temperature rise of the structure due to convective heat transfer due to the movement of the external fluid. In addition, since the heat insulating portion has a structure capable of transmitting electromagnetic waves, the heat of the structure can be radiated to the outside by the radiating portion while the sunlight is reflected by the reflecting portion. Therefore, the heat dissipation system of the present disclosure can suppress the temperature rise of the structure as compared with the conventional system.

According to the thirteenth viewpoint, the exterior member is provided with a guide for guiding the condensed water generated in the exterior member to the water storage device. According to this, water can be generated by utilizing the dew condensation generated on the exterior member.

According to the fourteenth viewpoint, the heat radiating system includes an exterior member positioned on the outside of the structure and a heat radiating member applied to the outside of the exterior member. The heat radiating member has a reflecting portion that reflects sunlight and a radiating portion that is arranged on the opposite side of the heat radiating member with respect to the reflecting portion. The exterior member is provided with a guide that guides the condensed water generated in the exterior member to the water storage device.

According to the fifteenth viewpoint, it is provided with a dew condensation promoting member that promotes the generation of dew condensation water. As described above, if the dew condensation promoting member is provided, the efficiency of water generation in the heat dissipation system can be improved.

According to the 16th viewpoint, the heat dissipation system includes a promotion control unit that controls the dew condensation promoting member according to the temperature of the structure. According to this, for example, since the freezing of the condensed water can be suppressed, the efficiency of water generation in the heat dissipation system can be improved.

Claims (16)

1. A heat radiating member applied to the outside of the structure (10, 30, 40, 50, 70).
   Reflecting part (21) that reflects sunlight,
   A radiating portion (22), which is arranged on the opposite side of the structure with the reflecting portion as a reference and radiates heat of the structure to the outside,
   A heat insulating portion (23) provided on the side opposite to the structure with the radiant portion as a reference and suppressing convective heat transfer due to the movement of an external fluid flowing outside is provided.
   The heat insulating portion is a heat radiating member capable of transmitting electromagnetic waves.
2. The heat radiating member according to claim 1, wherein the heat insulating portion includes a heat insulating body (231) made of resin having heat insulating properties.
3. The heat radiating member according to claim 1 or 2, wherein the heat insulating portion includes a gas layer (234) set between the radiating portion and the external fluid.
4. The heat radiating member according to any one of claims 1 to 3, wherein the heat insulating portion has a total thickness larger than the thickness of the radiating portion.
5. Equipped with a heat storage unit (24) that stores heat
   The heat radiating member according to any one of claims 1 to 4, wherein the heat storage unit is provided on the side opposite to the heat insulating unit with reference to the radiating unit.
6. The heat radiating member according to claim 5, wherein the heat storage unit is provided on the side opposite to the radiation unit with reference to the reflection unit.
7. The structure includes exterior members (112, 121, 131, 141) that form the outer shell of the moving body (10) or the outer shell of the loading material (12, 13, 14) mounted on the moving body. The heat radiating member according to any one of claims 1 to 6.
8. The structure comprises exterior members (51, 52, 71, F) that form the outer shell of a building (50, 70) or the outer shell of an installation (SP) installed in the building. The heat radiating member according to any one of 1 to 6.
9. The structure according to any one of claims 1 to 6, wherein the structure includes an exterior member (31, R) forming an outer shell of a portable device (30, CN) to be carried by a user. Heat dissipation member.
10. The structure according to any one of claims 1 to 6, wherein the structure includes an exterior member (41) forming an outer shell of a providing device (40) that provides a cold substance (D) to a user. Heat dissipation member.
11. The heat radiating member according to any one of claims 1 to 9, wherein the heat insulating portion is configured to be removable from a laminated body of the reflecting portion and the radiating portion.
12. It ’s a heat dissipation system,
    An exterior member (52) located on the outside of the structure (50),
    A heat radiating member (20) applied to the outside of the exterior member is provided.
    The heat radiating member is
    Reflecting part (21) that reflects sunlight,
    A radiation unit (22), which is arranged on the side opposite to the heat radiation member with reference to the reflection unit and radiates heat of the structure to the outside,
    It has a heat insulating portion (23) provided on the side opposite to the heat radiating member with the radiating portion as a reference and suppressing heat radiating due to the movement of an external fluid flowing outside.
    The heat insulating portion is a heat radiating system capable of transmitting electromagnetic waves.
13. The heat dissipation system according to claim 12, wherein the exterior member is provided with a guide (521) that guides the condensed water generated in the exterior member to the water storage device (60).
14. It ’s a heat dissipation system,
    An exterior member (52) located on the outside of the structure (50),
    A heat radiating member (20, CE) applied to the outside of the exterior member is provided.
    The heat radiating member is
    Reflecting part (21, RL) that reflects sunlight,
    It has a radiation unit (22, PL) that is arranged on the side opposite to the heat radiation member with reference to the reflection unit and radiates heat of the structure to the outside.
    A heat dissipation system in which the exterior member is provided with a guide (521) that guides the condensed water generated in the exterior member to the water storage device (60).
15. The heat dissipation system according to claim 13 or 14, further comprising a dew condensation promoting member (522) that promotes the generation of dew condensation water.
16. The heat dissipation system according to claim 15, further comprising a promotion control unit (100c) that controls the dew condensation promoting member according to the temperature of the structure.

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