JPH11229577A - Power generation panel device solar electric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar electric power generation panel device capable of melting snow fallen on a power generation panel and capable of preventing a temperature rise in the power generation panel in the summer period. SOLUTION: Windows to which dampers 12 are attached are arranged on the front/rear both wall surfaces of a frame 1 laid on a roof 15 or on a backing material of the roof 15 in an inclined state so that a power generation panel is arranged in the upper part of the frame 1, and a bottom plate composed of a heat insulating material is arranged in the lower part. A heating element is arranged in an air chamber formed between the power generation panel and the bottom plate to prevent reduction in power generation efficiency by restraining a temperature rise in the power generation panel by melting snow by heating the power generation panel by circulating this by warming air of the air chamber at snowfall time or passing outside air by opening the dmapers 12 when the sunlight is strong.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photovoltaic power generation panel device to be attached to a roof of a building and a photovoltaic power generation panel device to be laid on a base material of a roof. It concerns the device.

[0002]

2. Description of the Related Art It is known that a photovoltaic panel has a higher power generation efficiency as the temperature is lower, and a lower power efficiency as the temperature is higher. Therefore, by attaching a power generation panel to the upper part of the frame and attaching it at a predetermined interval on the roof of the building, a ventilation path is formed between the power generation panel and the roof, and the wind passing through it In general, a device that suppresses an extreme rise in temperature of a power generation panel due to sunlight is used.

Further, roofs in which photovoltaic panels are laid on a roof panel body at intervals and a ventilation path is formed by the intervals are disclosed in JP-A-5-239895 and JP-A-5-239895.
-239896.

[0004]

However, the above-mentioned conventional solar power generation panel device has a problem in that sunlight accumulated on the power generation panel blocks sunlight and power cannot be generated.

The present invention is to solve the problem that the snow falling on the power generation panel is immediately melted to prevent the power generation efficiency from lowering, and to prevent the temperature of the power generation panel from rising in summer to prevent the power generation efficiency from lowering. It is.

[0006]

According to a first aspect of the present invention, there is provided a photovoltaic power generation panel device in which dampers are attached to both front and rear wall surfaces of a frame laid on a roof or a base material of a roof in an inclined state. A window is provided, a solar cell panel is provided at an upper portion of the frame, a bottom plate made of a heat insulating material is provided at a lower portion, an air chamber is formed between the power generation panel and the bottom plate, and a heating element is provided in the air chamber. It is characterized by having been established.

When the photovoltaic power generation panel device is installed at a predetermined angle on the roof of a building or laid on a base material of the roof, the front and rear windows are closed by a damper, and the air chamber is heated by a heating element. The temperature-raised air rises along the lower surface of the power generation panel, descends along the upper surface of the bottom plate, warms the power generation panel while circulating in the air chamber, and immediately melts and runs off snow on the power generation panel.

When the sunlight is strong and the temperature of the power generation panel rises excessively, the front and rear dampers are opened to allow outside air to enter the air chamber from the lower window, and the cooled air cools the power generation panel and Discharge to the outside through the window.

According to a second aspect of the present invention, there is provided a photovoltaic power generation panel device having windows on both front and rear walls of lower, middle, and upper frames laid on a roof or a base material of a roof in an inclined state. The lower, middle and upper power generation units are provided with a power generation panel at the top of each frame and a bottom plate made of a heat insulating material at the bottom, and an air chamber formed between the power generation panel and the bottom plate. Were sequentially connected on the roof to match the windows on the connecting wall, and a heating element was arranged in the air chamber of the lower frame, and a damper was attached to the windows at the front end of the lower frame and the rear end of the upper frame. It is characterized by the following.

In order to connect the power generating units in the order of lower, middle and upper from the lower side and to match the windows of the connecting wall, the lower side is used in a state of being inclined on the roof or the base material of the roof. Since a series of air chambers is formed from the power generation unit to the upper power generation unit, when the front and rear dampers are closed and the air chamber is heated by the heating element in the lower power generation unit in the same manner as described above, the temperature of the air is increased. It circulates in the air chamber, during which time the power generation panels are gradually warmed to prevent snow cover.

When the temperature of the power generation panel is too high due to strong sunlight, open the front and rear dampers as described above,
When outside air enters the air chamber from the lower window, the cooled air cools the power generation panel of each power generation unit and is discharged to the outside through the upper window.

Further, according to the photovoltaic power generation panel device of the present invention, a window provided with dampers is provided on both front and rear wall surfaces of a frame laid on a roof or a base material of the roof in an inclined state. A power generation panel is provided in the upper part, a bottom plate made of a heat insulating material is provided in the lower part, a partition plate is provided in an air chamber between the power generation panel and the bottom plate, and an ascending ventilation passage connected at both front and rear ends by openings. And a descending air passage, and a heating element is provided on the partition plate.

This solar power generation panel device is installed on a roof of a building or a base material of the roof at a predetermined inclination angle, front and rear windows are closed by a damper, and air in a rising air passage on a partition plate is heated by a heating element. When warmed, the warmed air rises up the inclined ascending ventilation path, the air in the inclined descending ventilation path below the partition plate flows from the lower end to the ascending ventilation path, warming the power generation panel while circulating in the air chamber, Immediately melt and run off the snow that falls on the power generation panel.

When the sunlight is strong and the temperature of the power generation panel rises excessively, the damper is opened, and outside air is allowed to enter the air chamber through the lower window. To be discharged.

Still further, according to a fourth aspect of the present invention, there is provided a photovoltaic panel apparatus according to claim 4, wherein the front, rear, and rear walls of the lower, middle, and upper frames are laid on a roof or a base material of the roof in an inclined state. A window is provided, a power generation panel is provided at an upper portion of each frame, a bottom plate made of a heat insulating material is provided at a lower portion, and a lower plate provided with a partition plate in an air chamber between the power generation panel and the bottom plate.
The middle and upper power generation units were sequentially connected on the roof to match the windows on the connection wall, and the partition plates of each frame were abutted to communicate with each other through the opening at the front end of the lower frame and the rear end of the upper frame. An ascending air passage and a descending air passage are formed, a heating element is provided on a partition plate of the lower frame, and a damper is provided on a window at a front end of the lower frame and a rear end of the upper frame. is there.

When the power generation units are connected in the order of lower, middle, and upper positions from the lower side in an inclined state on the roof or the base material of the roof, and the windows on the connecting wall face are matched, Since an inclined ascending air passage and a descending air passage are formed in the air chamber connected from the power generation unit to the upper power generation unit, the front and rear dampers are closed, and the air in the ascending air passage is heated by the heating element on the lower power generation unit. When warming, the warmed air rises in the ascending airway, flows in the descending airway,
The cooled air in the descending air passage flows from the lower end to the ascending air passage, warms the power generation panel while circulating in the air chamber, and immediately melts and drops snow falling on the panel.

When the sunlight is strong and the temperature of the power generation panel is too high, open the front and rear dampers as described above,
When outside air is introduced into the circulation ventilation path, the cool air cools the power generation panel and discharges it from the upper window to the outside.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The frame of a photovoltaic power generation panel device is generally made of aluminum, and its size is
It is determined according to the size and the number of single-crystal silicon (cells). The damper attached to the window of the frame detects the temperature change by the thermostat attached to the right place of this device,
Along with this, a motor that opens and closes with a driving motor, a motor that operates with a spring made of a shape memory alloy, and the like are applied.

Further, a planar heating element is used as the heating element. For example, a wire in which a nichrome wire is meandered, a wire in which a resistance metal foil is printed, a wire in which conductive carbon is kneaded in a synthetic rubber, and the like are known, and a cloth in which a plurality of extremely fine conductive wires (copper wires) are folded. Impregnated with special carbon conductive paint
A laminate obtained by laminating a heat-resistant soft vinyl chloride sheet on both sides (hereinafter referred to as a carbon sheet heating element) is most preferable.

A single unit as in claims 1 and 3 and a unit with a plurality of power generation units as in claims 2 and 4 are selected according to site conditions, desired output, and the like. It is installed side by side. In the case of claims 1 and 3, when the weight is large and the workability is poor,
Or it may be divided into right and left and connected on the roof.
In the case of claims 1 and 3, a plurality of middle power generation units may be used, or a middle power generation unit may be omitted and lower and upper power generation units may be connected. When laying on a roof base material, it may be used together with a conventional roof material.
Hereinafter, embodiments of the present invention will be specifically described based on examples shown in the drawings.

[0021]

1 to 4 show an embodiment in which the photovoltaic power generation panel device according to the first aspect of the present invention is laid on a roof. FIG. Is a perspective view,
FIG. 3 is a partially cutaway sectional view taken along line XX in FIG.
FIG. 3 is a partially cutaway sectional view taken along line YY in FIG. 2.

Reference numeral 1 in the drawing denotes a frame made of aluminum, and windows 2 are formed on both front and rear wall surfaces thereof. Reference numeral 3 denotes a power generation panel in which the outer periphery is supported by a support groove 4 formed in the upper inner periphery of the frame 1. The power generation panel 3 has a large number of single-crystal silicon (cells) 5 arranged in a plane and interconnected by interconnectors. The surface of a battery connected in series or in parallel (generally also called a solar cell) is covered with a tempered glass 6 having a high light transmittance, and the back surface is covered with a PVF (polyvinyl fluoride) 7 having a multilayer structure.

Reference numeral 8 denotes a styrene resin bottom plate whose outer periphery is supported by support grooves 9 formed in the lower inner periphery of the frame 1. The bottom plate 8 has a heat insulating property, and uses a plate material having water resistance and weather resistance. A carbon sheet heating element 10 is mounted on the bottom plate 8.

Reference numeral 11 denotes an air chamber formed between the power generation panel 3 and the bottom plate 8. Reference numeral 12 denotes a damper attached to the front and rear windows 2 of the frame 1, which is opened and closed by an electric motor (not shown) activated by a thermostat 13 for detecting a temperature change in the air chamber 11. Reference numeral 14 denotes an attachment edge to the roof 15 provided at the lower end of the frame 1 and is fixed to an attachment member 16 disposed on the roof 15 using a fastening screw.

[0025]

Second Embodiment FIGS. 5 and 6 show an embodiment in which the photovoltaic power generation panel device according to the second aspect of the present invention is laid on a roof, and FIG. Is a partially cutaway sectional view.

This embodiment is different from the first embodiment in that the lower power generation unit A in which the damper 12 on the rear wall of the frame 1 is omitted, the damper on both front and rear wall and the carbon sheet heating element 10 are omitted.
And the damper 1 on the front wall
2 and the upper power generation unit C omitting the carbon sheet heating element 10 are laid on the roof 15 in a connected state, and the windows 2 on the connection wall surfaces of the units A, B, and C are matched to extend over the entire length.
It communicates with the air chamber.

[0027]

Embodiment 3 FIG. 7 is an embodiment in which the photovoltaic power generation panel device according to the present invention is laid on a roof, and is a partially cutaway sectional view.

In this embodiment, a partition plate 17 shorter than the frame 1 is provided in the air chamber 11 between the power generation panel 3 and the bottom plate 8 in the first embodiment, and openings 18 are formed before and after that. The upward ventilation passage 19 formed above the partition plate 17 by the opening and the downward ventilation passage 20 formed below the partition plate 17.
And are connected so that air can circulate.

[0029]

Fourth Embodiment FIGS. 8 and 9 show an embodiment in which the photovoltaic power generation panel device according to the fourth aspect of the present invention is laid on a roof, and FIG. 9 is a cross-sectional view showing a part thereof.

This embodiment is different from the third embodiment in that the lower power generation unit A1 in which the damper 12 on the rear wall of the frame 1 is omitted and the middle power generation unit B1 in which the damper 12 and the carbon sheet heating element 10 on both front and rear walls are omitted. And the damper 12 on the front wall and the upper power generation unit C1 omitting the carbon sheet heating element 10 are laid on the roof 15 in a connected state, and the partition plates 17 of the respective power generation units A1, B1, C1, are connected, An ascending air passage 19 and a descending air passage 20 communicating with the openings 18 are formed.

[0031]

Fifth Embodiment FIGS. 10 to 12 show an embodiment in which the photovoltaic power generation panel device according to the second aspect of the present invention is laid on a base material of a roof, and FIG. ,
FIG. 11 is a perspective view, and FIG. 12 is a longitudinal sectional view in a laid state.

A power generation panel 3 is provided on the upper portion of a frame 1 having a joint portion 21 provided on an upper edge and windows 2 on both front and rear walls, and a lower, middle and upper power generation unit A having a bottom plate 8 provided on a lower portion.
2, B2 and C2 are laid on the base material 22 of the roof so that the windows 2 are aligned with each other, and the ventilation box 23 is connected to the front wall surface of the lower power generation unit A2 and the rear wall surface of the upper power generation unit C2. The carbon sheet heating element 10 is provided only on the frame 1 in A2.

The ventilation box 23 is provided with a window 24 with a damper 12 that communicates outdoors and a window 25 that communicates with the air chamber 11 in the frame 1. These windows 25 are used as windows for the lower and upper power generation units A2 and C2, respectively. 2 is matched.

In this case, as in the fourth embodiment, the air chambers 11 in each of the power generation units A2, B2, and C2 are vertically divided by a partition plate 17, and the ascending and descending air passages communicated by the front and rear openings. May be formed. Other configurations are the same as those of the first to fourth embodiments, and the description of the reference numerals is omitted.

FIG. 13 shows a roofing material laid on the roofing material (the base material 22 on the right side in FIG. 10) on the side with less sunlight irradiation. The roofing material includes lower, middle, and upper frames 26 and a pair of ventilation boxes 27 connected to the lower and upper frames 26.

Windows 28 are formed on both front and rear walls of each frame 26 so as to match each other. A metal plate having good heat conduction, for example, a copper plate 29 is stretched over the frame 26, and a bottom plate made of a heat insulating material is formed below. 30 are provided, and an air chamber 31 is formed therebetween. A heating element 32 is provided on the lower frame 26. Also, a joint portion 33 is formed by projecting two sides of the copper plate 29 to the outside of the frame 26.

On both front and rear wall surfaces of the pair of ventilation boxes 27,
Window 35 and frame 26 with damper 34 leading to the outside
And a window 36 that communicates with the air chamber 31. However, the ventilation box 27 may be omitted, and a damper 34 may be provided in the lower and upper windows 28 as shown in the third embodiment (FIGS. 5 and 6). Reference numeral 37 denotes a partition plate.

As in the case of the power generation panel, when the roof material is closed, the front and rear dampers 34 are closed and the air in the air chamber 31 is heated by the heating element 32 when the snow falls, so that the copper plate 2
9 is heated, and the snow on the copper plate 29 is prevented.

In the summer, when the front and rear dampers are opened to allow outside air to enter the air chamber 31 through the lower windows 35 and 36, the temperature rise in the air chamber 31 is suppressed, and the heat insulating bottom plate is provided. Together, the rise in room temperature is prevented.

[0040]

The photovoltaic power generation panel device according to the present invention comprises:
The present invention is implemented in the form as described above, and has the following effects.

In the photovoltaic power generation panel device of the present invention, when the heating element is energized during snowfall to heat the air in the air chamber, the power generation panel is heated from the lower surface, so that it can melt snow and thus lower the power generation efficiency. There is no effect, and there is an effect that the trouble of removing the snow can be saved.

When the sunlight is strong, the front and rear dampers are opened, and the cool outside air passing through the air chamber can suppress the temperature rise of the power generation panel, prevent the power generation efficiency from lowering, and also provide a heat insulating bottom plate. This has the effect of preventing the temperature in the room from rising.

When laid on the roof or its base material, the air chamber is inclined, and the heated air easily circulates in the air chamber. Therefore, the heating element may be provided only below the air chamber. There is an effect that power consumption can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view showing a use state of Embodiment 1 of the present invention.

FIG. 2 is a perspective view of the first embodiment.

FIG. 3 is a partially cutaway sectional view taken along line XX in FIG. 2;

FIG. 4 is a partially cutaway sectional view taken along line YY in FIG. 2;

FIG. 5 is a side view showing a use state of the second embodiment of the present invention.

FIG. 6 is a partially cutaway sectional view of the second embodiment.

FIG. 7 is a partially cutaway sectional view of a third embodiment of the present invention.

FIG. 8 is a partially cutaway sectional view of a fourth embodiment of the present invention.

FIG. 9 is a transverse sectional view showing a part of the fourth embodiment;

FIG. 10 is a sectional view showing a use state of a fifth embodiment of the present invention.

FIG. 11 is a perspective view of the fifth embodiment.

FIG. 12 is a partially cutaway sectional view of the fifth embodiment.

FIG. 13 is a partially cutaway sectional view of another roofing material according to the fifth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Window 3 Power generation panel 8 Bottom plate 10 Carbon planar heating element 11 Air chamber 12 Damper 15 Roof 16 Mounting member 17 Partition plate 18 Opening 19 Ascending ventilation path 20 Descending ventilation path A, A1, A2 Lower power generation units B, B1 , B2 Medium power generation unit C, C1, C2 High power generation unit

Claims (4)

[Claims] 1. A window provided with dampers on both front and rear walls of a frame laid on a roof or a base material of a roof in an inclined state, a power generation panel is provided on an upper portion of the frame, and a bottom plate made of a heat insulating material is provided on a lower portion. A photovoltaic power generation panel device, wherein an air chamber is formed between the power generation panel and the bottom plate, and a heating element is disposed in the air chamber. 2. A window is provided on both front and rear walls of lower, middle and upper frames laid on a roof or a base material of the roof in an inclined state, a power generation panel is provided on an upper portion of each frame, and a power generation panel is provided on a lower portion. A bottom plate made of heat insulating material is provided, and lower, middle, and upper power generation units each forming an air chamber between the power generation panel and the bottom plate are sequentially connected on the roof so that the windows on the connection walls match. And, a heating element is arranged in the air chamber of the lower frame,
A photovoltaic panel device, wherein dampers are attached to windows at a front end of a lower frame and a rear end of an upper frame. 3. A window provided with dampers on both front and rear walls of a frame laid on a roof or a base material of the roof in an inclined state, a power generation panel is provided on an upper portion of the frame, and a bottom plate made of a heat insulating material is provided on a lower portion. Is provided, a partition plate is provided in an air chamber between the power generation panel and the bottom plate, and an ascending ventilation passage and a descending ventilation passage are connected at both front and rear ends by openings, and a heating element is provided on the partition plate. A solar panel device characterized by being provided. 4. A window is provided on both front and rear walls of lower, middle, and upper frames which are laid on a roof or a base material of the roof in an inclined state, a power generation panel is provided on an upper portion of each frame, and a power generation panel is provided on a lower portion. A bottom plate made of a heat insulating material is provided, and the lower, middle and upper power generation units, which are provided with a partition plate in an air chamber between the power generation panel and the bottom plate, are sequentially connected on a roof, and windows on a connection wall surface are connected. Along with matching, the partition plates of each frame are abutted to form an ascending air passage and a descending air passage which are communicated by the opening at the front end of the lower frame and the rear end of the upper frame, and on the partition plate of the lower frame. A photovoltaic panel device comprising: a heating element; and dampers attached to windows at a front end of the lower frame and a rear end of the upper frame.