JP2020084516A - Power generating device in house and air conditioning device in house - Google Patents

Abstract

To provide a power generation device in a house using a temperature difference between indoor and outdoor by stably maintaining a state in which a temperature difference occurs, and an air conditioner of the house using the power generation device in the house.SOLUTION: A blower 1 for sending air in a house to the upper part of the house is provided in the house, and the air sent to the upper part of the house by the blower 1 is sent to a lower end part 4 of a roof 2 through a roof direct flow passage 3 formed right under the roof 2. A thermoelectric conversion element 6 is attached to a closed space 5 located at a lower part of the lower end side of the passage 3 directly under the roof. One of the thermoelectric conversion elements 6 is positioned on the closed space 5 side, and the other is arranged so as to be in contact with the outside 7. A heat insulating wall is formed inside the closed space 5.SELECTED DRAWING: Figure 1

Description

The present invention relates to an indoor power generation device that uses temperature difference power generation and an air conditioner for a house that uses the indoor power generation device.

In recent years, the tendency of intense heat in summer has become remarkable, and the onset of heat stroke indoors has become a social problem. In particular, old people often do not like the cool air from the air conditioner, and it is extremely effective if the natural air flow can be effectively circulated indoors.

In addition, many cases of heat stroke have been reported due to not using an air conditioner to save electricity bills, and it is possible to secure air conditioning equipment by a simple and inexpensive method without using commercial power that is normally used. It has been demanded.

Regarding temperature control in a room, Patent Literature 1 describes a technique related to a control device that timely recovers radiant heat energy generated by the outer skin of a building structure and controls the temperature.

JP, 2013-104626, A

One method for generating power inside a house is temperature difference power generation using the temperature difference between indoors and outdoors. In performing the temperature difference power generation, it is necessary to stably maintain the situation where the temperature difference occurs.

The present invention has been made in consideration of such circumstances, and it is possible to stably maintain a situation in which a temperature difference occurs, and an indoor power generation device using a temperature difference between indoor and outdoor, It is an object of the present invention to provide an air conditioner for a house using an indoor power generator.

In order to solve the above problems, the indoor power generation device of the present invention is a blower that sends the air in the house to the upper part of the house, and the air that is sent to the upper part of the house by the blower is the lower end of the roof along directly below the roof. A channel directly under the roof to be sent to the part, and a thermoelectric conversion element provided in a closed space located at the lower end side lower part of the channel directly under the roof, the thermoelectric conversion element, one of which is located on the closed space side, and the other One of them is arranged so as to be in contact with the outside, and temperature difference power generation is performed by the temperature difference between the closed space and the outside.

The air in the house rises in temperature when it receives heat from the roof that is in a high temperature when it passes through the flow path directly under the roof, which is sent to the lower end of the roof along the bottom of the roof. Are sent to the closed space located below the lower end of the flow path directly under the roof. Therefore, a temperature difference occurs between the air in the closed space and the outdoor air, and the thermoelectric conversion element can perform temperature difference power generation.

In the house power generator of the present invention, a heat retaining wall is formed inside the closed space, the thermoelectric conversion element, one of which is located inside the heat retaining wall, the other of the heat retaining wall. It may be configured so as to be located outside.

Since the heat insulation wall is formed inside the closed space, the air inside the closed space can be maintained at a high temperature, and a temperature difference occurs between the air inside the closed space and the air outside. It can be maintained stable.

In the indoor power generator of the present invention, the partition plate that partitions the lower side of the closed space is provided with an exhaust port for exhausting the air in the closed space, and the exhaust port is a structure that can be opened and closed. It can be configured.

The closed space is usually sealed, but if it remains sealed, the air heated by the roof will not be supplied to the closed space through the flow path directly under the roof, and the effect of heating by the roof will be obtained. It gets harder. Therefore, the efficiency of the temperature difference power generation can be improved by opening the discharge port appropriately and promoting the supply of the air heated by the roof.

In the house power generator of the present invention, the roof material that constitutes the roof and the heat conducting rod that conducts heat between the airflow guide material that constitutes the flow path directly below the roof are provided, and the heat conducting rod is rod-shaped. And a large-diameter portion provided at both ends of the main body, the tip of the heat conducting rod on the roof material side is embedded in the roof material without being exposed to the roof material surface. Can be

Since the heat accumulated in the roof material is transferred to the flow path directly under the roof by the heat conduction rod, the air passing through the flow path directly under the roof can be maintained at a high temperature, and the temperature inside the closed space becomes high, and the temperature difference Easier to form. Further, since the heat conduction rod has large diameter portions provided at both ends of the main body portion, it is possible to increase the contact area with the roof material and the contact area with the airflow guide material, and thus the heat conduction Performance can be improved. Furthermore, since the tip of the heat conducting rod on the roof material side is embedded in the roof material without being exposed to the roof material surface, it is possible to prevent the formation of the heat conducting rod from inducing rain leakage.

In the indoor power generator of the present invention, the heat conducting rod is divided into a side in contact with the roof material and a side in contact with the airflow guide material, and passes through a roof backing material provided under the roof material. The structure may be such that they are connected by an air layer formed at the portion to be connected.

The important function of the heat conduction rod is to conduct heat between the roof material that constitutes the roof and the airflow guide material that forms the flow path directly under the roof, but between the roof material and the airflow guide material. Usually has a wooden attic, and if the part that passes through the attic is also made of a material with high thermal conductivity, heat will be transferred to the attic, and the heat will be effective for the airflow guide. Will not be transmitted. Therefore, by forming an air layer having a high heat insulating property in a portion passing through the attic, it is possible to suppress heat conduction to the attic and to effectively transfer the heat to the airflow guide. ..

In the indoor power generator of the present invention, the thermoelectric conversion element may be configured such that a heat sink made of a metal columnar body is attached to both the closed space side and the outdoor side.

Since the heat sink enhances the effects of heat dissipation and heat absorption, it is possible to stably maintain the temperature difference with respect to the thermoelectric conversion element.

In the house power generator of the present invention, the columnar body of the heat sink may have a plurality of radially formed protrusions in a cross section perpendicular to the longitudinal direction.

By having a plurality of radially formed protrusions, the surface area in contact with air can be increased, and heat dissipation and heat absorption by the heat sink can be further promoted.

An air conditioner for a house according to the present invention is characterized in that the air in the house is circulated by electric power obtained by the indoor power generator of the present invention.

By using the electric power obtained by the indoor power generator to move the blower inside the house to circulate the air inside the house, a self-supporting air conditioner that does not depend on other power sources can be realized.

According to the present invention, it is possible to stably maintain a situation where a temperature difference occurs, and to provide an indoor power generation device that utilizes the temperature difference between indoors and outdoors, and an air conditioner for a house that uses this indoor power generation device. Can be realized.

It is a figure which shows the structure of the indoor power generator which concerns on embodiment of this invention, and the air conditioner of a house. It is a figure which shows the detail of the closed space located in the lower end side lower part of the flow path just under the roof. It is a figure which shows the heat conduction structure between a roof and the flow path just under a roof. It is a figure which shows the detail of a thermoelectric conversion element.

Below, the indoor power generator of the present invention and the air conditioner of a house will be described based on its embodiments.
FIG. 1 shows a configuration of an indoor power generator according to an embodiment of the present invention and an air conditioner for a house.
A blower 1 is provided inside the house to blow the air inside the house to the upper part of the house, and the air blown to the upper part of the house by the blower 1 is a flow path directly under the roof formed immediately below the roof 2. It is sent to the lower end part 4 of the roof 2 through 3. A thermoelectric conversion element 6 is attached to the closed space 5 located below the lower end side of the flow path 3 directly below the roof. One of the thermoelectric conversion elements 6 is located on the closed space 5 side, and the other is arranged so as to contact the outdoors 7. As the thermoelectric conversion element 6, a Peltier element or the like can be used.

The air in the house receives heat from the roof 2, which is in a high temperature state, when the air passes through the flow path 3 directly below the roof 2, which is sent to the lower end portion 4 of the roof 2 along directly below the roof 2, and the temperature rises. Since the temperature-increased air is sent to the closed space 5 located below the lower end side of the flow path 3 directly below the roof via the inlet 11 provided at the entrance to the closed space 5, A temperature difference occurs between the air and the air in the outdoors 7, and the thermoelectric conversion element 6 can perform temperature difference power generation.

FIG. 2 shows details of the closed space 5 located below the lower end of the flow path 3 directly below the roof.
A heat insulating wall 8 is formed inside the closed space 5, and one of the thermoelectric conversion elements 6 is arranged inside the heat insulating wall 8 and the other is arranged outside the heat insulating wall 8. There is. Since the heat insulating wall 8 is formed inside the closed space 5, the air in the closed space 5 can be maintained at a high temperature, and the temperature difference between the air in the closed space 5 and the air in the outdoors 7 can be maintained. It is possible to stably maintain the situation in which

A partition plate 9 that partitions the lower side of the closed space 5 is provided with a discharge port 10 for discharging the air in the closed space 5, and the discharge port 10 has a structure that can be opened and closed. The closed space 5 is normally sealed, but if the sealed space 5 remains closed, the air heated by the roof 2 will not be supplied to the closed space 5 through the channel 3 directly below the roof, and thus the roof 2 will not heat the air. It becomes difficult to obtain the effect of. Therefore, the efficiency of the temperature difference power generation can be improved by opening the exhaust port 10 as appropriate and promoting the supply of the air heated by the roof 2.

FIG. 3 shows a heat conduction structure between the roof and the channel directly under the roof. FIG. 3A is a view of the roof and a channel directly below the roof as viewed from the lateral direction, and FIG. 3B is an explanatory view of the roof as viewed from above.
The roof member 21 that constitutes the roof 2 and the airflow guide member 22 that constitutes the channel 3 directly below the roof are provided with a heat conducting rod 23, and the heat conducting rod 23 is a rod-shaped main body portion 24. And large diameter portions 25a and 25b provided at both ends of the main body portion 24. The large diameter portions 25a and 25b are formed to have a diameter larger than that of the main body portion 24. The tip portion 26 a of the heat conducting rod 23 on the roof material 21 side is embedded in the roof material 21 without being exposed on the surface of the roof material 21. The large-diameter portion 25 b of the heat conducting rod 23 on the air flow guide 22 side is directly bonded to the air flow guide 22. The roof material 21 is formed of a roof tile, a colonial, or the like, and easily absorbs heat from sunlight. The heat conducting rod 23 is formed of a metal having a high heat conductivity. The shape of the large diameter portions 25a and 25b is not limited to a quadrangle, and can be appropriately selected depending on the situation.

Since the heat accumulated in the roofing material 21 is transferred to the flow path 3 directly below the roof by the heat conduction rod 23, the air passing through the flow path 3 directly below the roof can be maintained at a high temperature, and the temperature inside the closed space 5 becomes high. Therefore, it becomes easy to form a temperature difference. Further, since the heat conducting rod 23 has the large diameter portions 25a and 25b provided at both ends of the main body portion 24, the contact area with the roof member 21 and the contact area with the airflow guide member 22 are increased. It is possible to improve the heat conduction performance. Further, since the tip end portion 26a of the heat conducting rod 23 on the roof material 21 side is not exposed on the surface of the roof material 21 and is embedded inside the roof material 21, it is possible to prevent rain leakage by installing the heat conducting rod 23. You can prevent the trigger.

The heat-conducting rod 23 can be integrally formed of metal from the tip end portion 26a on the side in contact with the roof member 21 to the tip end portion 26b on the side in contact with the air flow guide member 22, but as shown in FIG. It is also possible to connect by an air layer 28 formed at a portion passing through a roof lining 27 provided below 21. In this case, the heat conducting rod 23 is divided into a side in contact with the roof member 21 and a side in contact with the airflow guide member 22, and is connected to the air layer 28. The air layer 28 can be easily formed by making this portion hollow.

An important function of the heat conducting rod 23 is to conduct heat between the roof material 21 that constitutes the roof 2 and the air flow guide material 22 that constitutes the flow path 3 directly below the roof. A wooden attic 27 is usually present between the guide member 22 and heat is transferred to the attic 27 if the portion passing through the attic 27 is also formed of a material having high thermal conductivity. As a result, heat is not effectively transferred to the air flow guide member 22. Therefore, by forming an air layer 28 having a high heat insulating property in a portion that passes through the attic 27, heat conduction to the attic 27 is suppressed, and heat is effectively transferred to the airflow guide 22. can do. In order to improve the heat insulating property, a heat insulating material can be installed at a boundary portion with the attic 27. A waterproof sheet 29 made of rubber or the like is installed between the roof material 21 and the roof lining material 27. The heat-conducting rod 23 having the above-described structure can be retrofitted to an existing roof, or can be installed in advance on the roof.

FIG. 4 shows details of the thermoelectric conversion element. FIG. 4A is a diagram of the thermoelectric conversion element viewed from the lateral direction, and FIG. 4B is an explanatory diagram of the thermoelectric conversion element viewed from above.

As described with reference to FIG. 2, the heat insulating wall 8 is formed inside the closed space 5, and one of the thermoelectric conversion elements 6 is located inside the heat insulating wall 8 and the other is the heat insulating wall 8. It is arranged so as to be located outside. The partition plate 9 that partitions the lower side of the heat retaining wall 8 is provided with an exhaust port 10 for exhausting the air in the heat retaining wall 8. The exhaust port 10 has an openable and closable structure that opens and closes according to the pressure in the heat retaining wall 8. Is becoming

A heat sink 31 made of a metal columnar body 30 is attached to the thermoelectric conversion element 6 both on the closed space 5 side and on the outdoor 7 side. Since the heat sink 31 enhances the effect of heat radiation and heat absorption, it is possible to stably maintain the temperature difference with respect to the thermoelectric conversion element 6.

The columnar body 30 of the heat sink 31 shown in FIG. 4B has a rectangular cross section 32 perpendicular to the longitudinal direction, but may have another shape. 4C, FIG. 4D, FIG. 4E, and FIG. 4F show specific examples of other shapes of the columnar body 30 of the heat sink 31.

In FIG. 4(c), the cross section 32 perpendicular to the longitudinal direction is circular, and in FIG. 4(d), the cross section 32 perpendicular to the longitudinal direction is rectangular. Further, the structure shown in FIGS. 4E and 4F has a structure having a plurality of radially formed projections 33 in a cross section 32 perpendicular to the longitudinal direction. Of these, FIG. 4E shows a polygonal cross section 32 perpendicular to the longitudinal direction, and a plurality of protrusions 33 are formed radially, and FIG. 4F shows the longitudinal direction. A plurality of protrusions 33 are radially formed in contrast to a circular cross section 32 perpendicular to the.

By having the plurality of radial projections 33, the surface area in contact with air can be increased, and the heat dissipation and heat absorption by the heat sink 31 can be further promoted.

The electric power obtained by the above-described indoor power generator can be used as a power source for electric equipment, and when used as a power source for the blower 1 installed in the house, the blower 1 in the house can be operated without using any other power source. Thus, the air in the house can be circulated, and the air conditioner can function as an independent air conditioner. In FIG. 1, only one blower 1 is shown on behalf of the blower 1, but if necessary, a plurality of blowers 1 may be installed in the house so that the air in the house circulates efficiently. can do.

In the above description, the roof is assumed to be hot in summer, but in winter, the roof is cold, so the temperature difference is created by reversing the direction of heat conduction. Differential power generation can be performed.

The present invention makes it possible to stably maintain a situation in which a temperature difference occurs, and an in-house power generator using a temperature difference between indoor and outdoor, and an air conditioner for a house using this indoor power generator, Can be widely used.

DESCRIPTION OF SYMBOLS 1 Blower 2 Roof 3 Flow path directly under the roof 4 Lower end 5 Closed space 6 Thermoelectric conversion element 7 Outdoor 8 Heat insulation wall 9 Partition plate 10 Discharge port 11 Inlet 21 Roof material 22 Air flow guide 23 Heat conduction rod 24 Main body 25a, 25b Large-diameter portion 26a, 26b Tip portion 27 Attic material 28 Air layer 29 Waterproof sheet 30 Columnar body 31 Heat sink 32 Cross section 33 Protrusion

Claims (8)

A blower that blows the air inside the house to the top of the house, and a channel directly under the roof that blows the air that is blown to the top of the house by the blower to the lower end of the roof along the bottom of the roof. A thermoelectric conversion element provided in the closed space located,
One of the thermoelectric conversion elements is located on the closed space side, and the other is arranged so as to be in contact with the outside, and temperature difference power generation is performed by a temperature difference between the closed space and the outside. Power generator. A heat insulating wall is formed inside the closed space, and one of the thermoelectric conversion elements is arranged inside the heat insulating wall and the other is arranged outside the heat insulating wall. The indoor power generation device according to claim 1, wherein the power generation device is an indoor power generation device. The partition plate for partitioning the lower side of the closed space is provided with a discharge port for discharging the air in the closed space, and the discharge port has a structure that can be opened and closed. In-house power generator. A roof material that constitutes the roof, and a heat conduction rod that conducts heat between the airflow guide material that constitutes the flow path directly below the roof, the heat conduction rod is a rod-shaped body portion, and at both ends of the body portion. The large-diameter portion provided, and the tip of the heat conducting rod on the roof material side is embedded in the roof material without being exposed to the surface of the roof material. The indoor power generator according to any one of the above. The heat-conducting rod is divided into a side in contact with the roof material and a side in contact with the airflow guide member, and is connected by an air layer formed in a portion passing through a roof backing material provided under the roof material. The indoor power generation device according to claim 4, wherein the power generation device is an indoor power generation device. 6. The indoor power generator according to claim 1, wherein the thermoelectric conversion element is provided with a heat sink made of a metal columnar body on both the closed space side and the outdoor side. .. 7. The indoor power generator according to claim 6, wherein the columnar body of the heat sink has a plurality of radially formed protrusions in a cross section perpendicular to the longitudinal direction. An air conditioner for a house, characterized in that the air in the house is circulated for air conditioning by the electric power obtained by the indoor power generator according to any one of claims 1 to 7.

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