JP2000008591A - Solar battery floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the utilization efficiency of a limited space by allowing a person to walk on a solar battery installed on the outside or rooftop of a building. SOLUTION: This solar battery floor SF is provided with many solar battery modules 1 arranged in the horizontally spread state and many stanchions 2 supported at the required height on the solar battery modules 1 and a rooftop concrete floor RF. The solar battery modules 1 are provided with a transparent floor board 11, many solar battery cells 12 arranged and fixed in parallel on its back face, connecting means of them, and power supply terminal sections 13 connecting the solar battery modules 1 together via wiring. The transparent floor board 1 is made of tempered glass with a proper thickness which is not easily deformed or broken when a person walks or functions on it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photovoltaic cell floor in which photovoltaic modules are laid out so that a person can walk on them.

[0002]

2. Description of the Related Art In recent years, there have been various environmental problems such as air pollution caused by mass consumption of fossil fuels for electric power supply and atmospheric warming caused by greenhouse gases emitted due to mass consumption of the fossil fuels. In view of this, solar power as permanent and clean energy has been attracting attention. Various types of photovoltaic power generation are used, from large-scale photovoltaic arrays with a large number of large photovoltaic panels to small photovoltaics installed on the roof of ordinary houses. The structure does not assume that people walk on the top.

For this reason, for example, when a solar cell panel is installed on the roof of a building, a space for installing the solar cell panel and a space for walking or the like must be clearly separated, and the area for installing the solar cell must be secured. There were many restrictions on the installation method and the like. In addition, a stand for fixing the solar cell is necessary for the installation of the solar cell. Since the structure of the stand is different for each facility, the installation plan and construction are inefficient, and
This was the cause of the rise in OS cost.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the technical problem thereof is that a person can use a solar cell installed outside a building or on a rooftop. An object of the present invention is to improve the efficiency of use of a limited installation space by enabling walking.

[0005]

Means for Solving the Problems The technical problems described above are:
This can be effectively solved by the present invention. That is, the solar cell floor according to the present invention has a required number of solar cell modules in which a connection terminal portion and a large number of solar cells are arranged in a connected state on the back surface of a transparent floor plate having a bending strength as a passage floor, And a required number of support members for supporting the transparent floorboard at a predetermined height on the installation target surface in a state where the battery modules are spread in a plane.
As the transparent floor plate, for example, tempered glass or the like can be applied.

According to the present invention, the transparent floorboard made of tempered glass or the like allows sunlight to enter the surface of a solar cell disposed on the back surface thereof and protects the solar cell from external force. By having a bending strength as a passage floor, a person can walk on the solar cell module. The space between each solar cell module and the installation target surface is a wiring space for electrically connecting the connection terminals of each solar cell module. In addition, since the support member supports the transparent floor plate of the solar cell module, a vertical load applied to the transparent floor plate of each solar cell module due to the passage of a load is not transmitted to the solar cell.

[0007] In the present invention, more preferably, a step-out protection plate is arranged on the back surface of the solar cell module. In other words, this step-out protection plate should be used if the transparent floor plate of the solar cell module is damaged due to excessive load or impact.
It is possible to prevent the solar cell module from falling off from the support height of the support member, thereby preventing a load from falling. In this case, when the step-out protection plate is made of, for example, a metal mesh or expanded metal, heat accumulation due to heat generation of the solar cell can be prevented, and good heat dissipation can be provided.

In another preferred embodiment of the present invention, each solar cell module is provided with a mounting frame along an outer edge thereof, and each of the solar cell modules is mounted on a support member via the mounting frame. Supported. In this case, the mounting frame has a function of positioning each solar cell module to prevent horizontal movement thereof and a function of reinforcing the transparent floor plate.

In another preferred embodiment added in the present invention, the support member has a variable support height with respect to the transparent floor plate. In this way, the solar cell module can be installed at a desired height, horizontally or at a required water gradient, regardless of the surface accuracy of the installation target surface such as a building roof.

In another preferred embodiment of the present invention, each of the solar cell modules has a notch at a corner of a transparent floor plate having the same shape and the same size as each other, and the transparent floors are laid on each other. An opening formed by the notch is formed between the plates. In this case, an arbitrary solar cell module can be easily removed or attached from above the solar cell floor by inserting a finger or an appropriate jig into the opening.

Further, as another more preferable configuration added in the present invention, a solar cell module is laid in a passage shape, and a transparent or grid-like protective fence is attached on both sides in the width direction. That is, this protective fence is attached when the solar cell module is laid in a passage form at a relatively high position from the installation target surface, and is for preventing falling of passing traffic, and is made transparent or lattice-shaped. By doing so, the incidence of sunlight on the solar cell module can be minimized. Also, by making the protective fence detachable or movable with respect to the solar cell module or the installation target surface, it is possible to prevent the light receiving surface of the solar cell module from being shaded by the protective fence during a normal day. it can.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a partially cutaway perspective view showing a first preferred embodiment of a solar cell floor SF according to the present invention. This is the roof concrete floor of a reinforced concrete building as the target surface. The solar cell floor SF according to this embodiment has a large number of solar cell modules 1 arranged in a state of being laid in a plane, and is supported at a required height on each of the solar cell modules 1 and the rooftop concrete floor RF. And a number of columns 2 as supporting members.

The solar cell module 1 includes a transparent floor plate 11
And a number of solar cells 12 arranged and fixed on the rear surface (lower surface) of the transparent floor plate 11, and connecting means (not shown) for connecting these solar cells 12 in series and / or in parallel with each other. And the respective solar cell modules 1 are connected in series with each other via wiring (not shown) and / or
The solar battery array includes a power supply terminal unit 13 connected in parallel, that is, is connected to each other, so that a required power can be supplied to a power load inside a building. The transparent floor panel 11 is made of tempered glass or the like having an appropriate thickness that is not easily deformed or damaged even when a person walks or acts on it while supporting at least both ends and is hardly damaged. As shown in the plan view of 2,
It has a plate shape of a size that can be easily handled by humans, and has a shape in which four corners of a square having a side of, for example, 500 mm or 600 mm are cut off obliquely.

A mounting frame 14 made of steel or the like is provided on the outer peripheral portion of the rear surface of the transparent floor plate 11. This mounting frame 14 is
FIG. 3 is a cross-sectional view taken along a line II ′ in FIG. 2.
As shown in FIG. 3A, the transparent floor panel 11 has an L-shaped cross-sectional shape including a horizontal frame portion 14a and a vertical frame portion 14b extending downward from an inner edge of the horizontal frame portion 14a. Has the function of reinforcing.

As shown in FIG. 3B, which is a cross-sectional view taken along the line II-II 'of FIG. 2, the mounting frame 14 is provided at portions corresponding to the four corners of the transparent floor plate 11, respectively. A hook 14c is provided which protrudes upward from the widthwise middle of the portion 14a and has an upper end bent inward. That is, the mounting frame 14 is fixed to the transparent floor plate 11 in a state where the four corners of the transparent floor plate 11 are sandwiched between the hooks 14c and the horizontal frame portion 14a via the gaskets 15 and 16 made of elastic materials, respectively. Is done.

The solar cells 12 are arranged in a region surrounded by the mounting frame 14 on the back surface of the transparent floor plate 11, and are fixed in a sealed state by being laminated with a resin film 17 having electrical insulation. ing. On the lower surface side of the resin film 17, a step-out protection plate 18 made of expanded metal or wire mesh is provided. Even if the transparent floor plate 11 should be damaged by an excessive load or impact, the step-out protection plate 18 can protect the solar cell floor SF.
The transparent floor plate 11, the gaskets 15, 16 and the resin film 1
7 or a support leg (not shown) of the step-out protection plate 18 itself.
Accordingly, each solar cell module 1 is held at the rear surface height. Moreover, since the air permeability is maintained and the heat radiation area is increased by using the metal wire mesh or expanded metal, heat accumulation due to heat generation of the solar cell 12 can be prevented, and good heat radiation can be provided.

As shown in FIG. 4, the support column 2 includes an upper support plate 21 on which the horizontal frame portion 14a of the mounting frame 14 of the solar cell module 1 is seated, and a rooftop concrete floor R.
It has a lower base plate 22 to be seated on the upper surface of F, a column main body 23 extending vertically between the two plates 21 and 22, and a height adjusting portion 24 provided on the column main body 23. The height adjusting portion 24 may be formed by screwing the male screw portion 24a and the cap nut 24b as shown in the example of the drawing.

Each of the columns 2 is installed so as to be located at four corners of a plurality of solar cell modules 1 adjacent to each other in the horizontal direction, and its lower base plate 22 is attached to the rooftop concrete floor RF by an anchor member 25 or an adhesive (not shown).
, And the four corners of the horizontal frame portion 14a of the mounting frame 14 in the adjacent solar cell modules 1 are seated on the upper support plate 21. In this state, since the upper support plate 21 is located between the vertical frame portions 14b of the mounting frames 14, the vertical frame portion 14b is provided with positioning means for laying the solar cell module 1, and It functions as stopper means for restricting inadvertent displacement in the horizontal direction.

The solar cell module 1 generates power by means of a transparent floor plate 11 made of tempered glass or the like having sufficient bending strength as a passage floor, for example, a sufficient strength so that it is not easily deformed or damaged even when a person walks or acts on the floor. The solar cell 12 as the main body is protected, and the load acting on the transparent floor plate 11 is received by the support 2 and is not transmitted to the solar cell 12. In addition, the transparent floorboard 1 made of the tempered glass or the like
In No. 1, since the surface is not easily damaged by walking of a person or the like, a decrease in the amount of light incident on the solar battery cell due to irregular reflection on the surface of the transparent floor plate 11 is effectively suppressed.

Therefore, the solar cell floor SF (solar cell module 1) can be effectively used as a floor on which a person can walk, and there is no need to distinguish between a solar power generation space and a walking space. As a result, as shown in the plan view of FIG. 5, almost the entire area of the roof can be used as a space for laying the solar cell floor SF (solar cell module 1). That is, in the example shown in FIG. 5, the solar cell floor SF is laid on almost the entire area of the rooftop concrete floor RF except for the rooftop tower C and the northern floor surface RFa. The reason why it is not laid on the floor RFa on the north side of the tower C is that direct solar radiation hardly enters this area, and power generation efficiency is low.

Each of the solar cell modules 1 is standardized to have the same shape and the same size, and all the columns 2 have the same structure. By adjusting the supporting height of the columns 2, the unevenness of the surface to be installed can be improved. Since it is possible to cope with the difference in the installation conditions, there is no need to manufacture and construct a gantry or the like for each site. For this reason, the solar cell module 1
And the support | pillar 2 can be mass-produced and versatility can be improved.

The transparent floor plate 11 of the solar cell module 1
As described above, since the four corners 11a have a shape in which the four corners 11a are cut off obliquely, as shown in FIG. 1 or FIG.
An opening H is formed between 11a,. For this reason, when performing inspection or replacement of a part of the solar cell modules 1 in the solar cell floor SF, a finger or an appropriate jig is inserted into any of the openings H to remove an arbitrary solar cell module 1. , Can be easily removed from the solar cell floor SF.

If the solar cell module 1 does not hinder human walking, the supporting height of the column 2 is adjusted so that rainwater does not accumulate on the upper surface of the transparent floor plate 11 after rainfall. A slight gradient (drain gradient) may be provided by adjustment in section 24. In this case, it is preferable to incline so that the south side becomes lower in order to improve the incident efficiency of sunlight.

The upper surface of the transparent floor plate 11 may be formed smoothly, but may be made uneven so as not to slip when a person walks. In this case, it is preferable that the uneven surface has a textured shape that enhances the incident efficiency of sunlight and also facilitates cleaning and drainage for maintaining power generation efficiency.

In the above embodiment, the solar cells 12
Has a structure fixed by being laminated with the resin film 17. For example, another glass plate is disposed on the back surface of the transparent floor plate 11 made of tempered glass, and As a fixing structure of the solar cell 12 such as one sandwiching the solar cell 12, various known structures can be applied. Further, the dimensions of the transparent floor plate 11 and the cutout shapes of the four corner portions 11a thereof are not particularly limited to the above embodiment.

FIGS. 6 and 7 show a second preferred embodiment in which the solar cell floor SF according to the present invention is applied to a rooftop catwalk. Among them, in FIG. 6 which is a plan view of the roof of a reinforced concrete building, reference numeral RF ′ is a roof concrete floor which is not suitable for human walking due to the presence of a large number of pipes, electric cables, waterproofing equipment, etc. An installation space for equipment and facilities provided on the roof concrete floor RF ', and a reference numeral CW is a catwalk as a passage for a load constructed from the tower C on the rooftop to the equipment equipment installation space A.

The catwalk CW corresponds to II in FIG.
As shown in the sectional view of FIG. 7 cut at the I-III 'position,
It is composed of a large number of column bases CWa arranged in three rows at predetermined intervals and a gantry CWb erected on the column base CWa, and is constructed of a structural material such as steel, aluminum, or wood. The solar cell floor SF is laid on the upper surface of the gantry CWb as the installation target surface.

The solar cell floor SF is formed by connecting a large number of solar cell modules 1 having the same structure as in the first embodiment described above to form a solar cell array. , Catwalk CW
The solar cell 12 and the power supply terminal portion 13 on the back surface of the transparent floor plate 11 are provided on the upper surface of the gantry CWb in FIG.
And a large number of support members 3 which are supported at an appropriate height such that they do not interfere with each other. As the support member 3, a bolt or an attachment attached to the attachment frame 14 shown in FIG. 3 or 4 is used. In addition, each solar cell module 1
Wiring for connecting each other to form a solar cell array can be provided using a space shown by a dashed line below the gantry CWb in FIG.

That is, in the second embodiment, the roof concrete floor RF 'is constructed as a work passage for maintenance or the like when the roof concrete floor RF' is not suitable for human walking due to installation of mechanical equipment, exposure of piping and electric cables, and the like. The walking floor of the catwalk CW is used as a solar cell installation space. Therefore, unlike the case where the solar cell installation space is provided on the roof concrete floor RF ', there is no need to construct a dedicated access passage connecting the tower C and the solar cell installation space.

If the height of the pedestal CWb of the catwalk CW is relatively high, a protective fence CWc such as a handrail is provided along both widthwise edges to prevent a fall. It is constructed of a thin pipe, transparent glass, or the like so as not to hinder sunlight from entering the solar cell module 1. In this case, the protective fence CW
c may be detachable or movable with respect to the gantry CWb.

As the removable protective fence CWc, for example, a structure as shown in FIG. 8 can be considered. That is, when the protective fence CWc is used, the lower end insertion portion 4 of each fence post 4 is used.
1 is inserted into the support tube 5 provided on the gantry CWb, and the flange 42 formed on the lower end insertion portion 41 is attached to the support tube 5.
Each fence post 4 is erected by being supported above, and can be removed by pulling out the fence post 4 from the support cylinder 5 when not in use.

Further, as a movable protective fence CWc,
For example, the one shown in FIG. 9 can be considered. That is,
An engaging piece 43 provided so that the protective fence CWc can be freely protruded and retracted from the outer peripheral surface of each fence post 4 around an upper fulcrum 43a.
A built-in spring (not shown) for constantly urging the locking piece 43 in the protruding direction, and an axially movable member provided on the outer periphery of each fence post 4 so that the locking piece 43 And a restraining ring 44 that can be restrained in a state of being immersed in and can be inserted into the support cylinder 5 of the gantry CWb. According to this configuration, when the protective fence CWc is used, the lower end insertion portion 41 of the fence post 4 is inserted into the support cylinder 5 as shown in FIG.
By locking the locking piece 43 projecting from the upper outer peripheral surface to the upper end of the support cylinder 5,
Is set at a predetermined height on the gantry CWb, and when not in use, the locking piece 43 is restrained by the restraining ring 44 so as to be immersed inside the fence post 4 as shown in FIG. Pillar 4
Can be dropped until the head 45 is in a state of being locked to the support cylinder 5.

In addition, for example, a protective fence C such as a lower end of the fence post 4 or the like.
The lower end of Wc is connected to a gantry CWb or the like via a hinge,
Various things are conceivable, for example, when it is not used, it is turned outward.

Also in the above-described second embodiment, the solar cell floor SF is preferably adjusted by adjusting the support height of the support member 3 or by inclining the gantry CWb itself in consideration of rainwater treatment. Provide a drainage gradient that does not interfere with human walking.

In the illustrated embodiment, the case where the solar cell floor is installed on the roof of a building or on the catwalk on the roof has been described. However, the present invention is not limited to this, and the sunshine in the outdoors is good. Any area is applicable. In addition, the planar shape of the solar cell module 1 is not limited to a substantially square shape as in the illustrated embodiment, but may be any shape such as a rectangular shape or a tortoiseshell shape that can be spread over each other.

[0036]

According to the solar cell floor of the present invention,
The following effects are realized. (1) Since the solar cell module constitutes a floor on which a person can walk, there is no need to distinguish between a solar power generation space using a solar cell and a walking space. Therefore, a large photovoltaic power generation space can be secured and the supplied power can be increased, or an outdoor passage or the like that is used less frequently, such as a catwalk, can be effectively used as a photovoltaic power generation space. (2) By standardizing the photovoltaic module and the supporting members for laying the photovoltaic module, the photovoltaic module can be easily laid, thereby reducing the construction cost. (3) Maintenance is facilitated by allowing the solar cell module to be easily removed from the upper side. (4) Good heat dissipation can be provided by the step-out protection plate that prevents the load from falling when the transparent floor plate of the solar cell module is damaged.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a preferred first embodiment of a solar cell floor according to the present invention, in a partially cut and installed state.

FIG. 2 is a plan view showing a solar cell module constituting the solar cell floor of the first embodiment.

FIGS. 3A and 3B are partial cross-sectional views showing the structure of the solar cell module. FIG. 3A is a cross-sectional view taken along a line II ′ in FIG. 2, and FIG. It is cut.

FIG. 4 is a partial cross-sectional view showing an installation state of a solar cell floor in the first embodiment.

FIG. 5 is a schematic plan view showing a rooftop of a building on which the solar cell floor of the first embodiment is installed.

FIG. 6 is a schematic plan view showing a second preferred embodiment in which the solar cell floor according to the present invention is installed on a catwalk on the roof of a building.

FIG. 7 is a sectional view taken along the line III-III ′ in FIG.

FIG. 8 is an explanatory diagram schematically showing a configuration when a protective fence provided on the catwalk is detachable.

FIG. 9 is an explanatory view schematically showing a configuration in a case where a protective fence provided on the catwalk is movable.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 solar cell module 11 transparent floor panel 12 solar cell 13 power supply terminal 14 mounting frame 18 step-out protection plate 2 support (support member) 3 support member CW catwalk CWb gantry (installation target surface) CWc protection fence RF roof concrete floor (installation target) Surface) SF solar cell floor

Claims (8)

[Claims] 1. A required number of solar cell modules in which connection terminals and a large number of solar cells are arranged in a mutually connected state on the back surface of a transparent floor plate having a bending strength as a passage floor; A required number of support members for supporting the transparent floorboard at a predetermined height on the installation target surface in a state where the transparent floorboard is laid on the solar cell floor. 2. The solar cell floor according to claim 1, wherein a step-out protection plate is arranged on a back surface of the solar cell module. 3. The solar cell module according to claim 1, wherein a mounting frame is attached to each solar cell module along an outer edge thereof, and each of the solar cell modules is supported on a support member via the mounting frame. A solar cell floor characterized by the following. 4. The solar cell floor according to claim 1, wherein each support member has the same structure as each other, and a support height with respect to the transparent floor plate is variable. 5. The solar cell module according to claim 1, wherein each of the solar cell modules has a notch at a corner of a transparent floor plate having the same shape and size as each other, and an opening formed by the notch is provided between the transparent floor plates that are laid out on each other. A solar cell floor characterized by being formed. 6. The solar cell according to claim 1, wherein the solar cell module is laid in a passage shape, and transparent or lattice-shaped protective fences are attached to both sides in the width direction so as to be detachable or protrudable. floor. 7. The solar cell floor according to claim 2, wherein the step-out protection plate is made of a metal mesh or an expanded metal. 8. The solar cell floor according to claim 6, wherein the protective fence is detachable or movable with respect to the solar cell module or the installation target surface.