JP3061508B2 - Photovoltaic module array and fixing mechanism for photovoltaic module - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar cell module array and a fixing mechanism for a solar cell module , and more particularly, to a solar cell module array which is inexpensive, simple, and excellent in appearance in its installation method. as well as
The present invention relates to a fixing mechanism for a solar cell module .

[0002]

2. Description of the Related Art Solar cells utilizing solar energy are:
It is expected as a clean and non-depleting energy source, and is expected to be widely used from households to large-scale power generation. In many cases, solar cells are used outdoors, and in order to have durability against the effects of the external environment such as temperature, humidity, and rain and wind, the solar cell element is sealed with a resin to form a solar cell module. A configuration is usually employed. Further, a structure in which a plurality of solar cell modules are combined to form a solar cell module array is also adopted.

By the way, as for this solar cell, not only research and development of the solar cell itself, but also various developments have been made on the installation method thereof. For example, there are two conventional methods for installing a solar cell module array in the following.

In a first installation method, as shown in FIG. 13, a frame member 8 made of a material such as aluminum is provided on a solar cell module 1 for the purpose of protecting a peripheral portion thereof and reinforcing mechanical structural strength. This is the method that is adopted when it is used. In this case, the solar cell module 1
As shown in FIG.
, Or by directly fixing the frame member 8 with bolts 6 as shown in FIG.

The second installation method is adopted when the structural strength of the substrate material of the solar cell module is sufficiently strong, or when the frame material is not provided for the purpose of pursuing weight reduction and cost reduction of the module. Is the way. In this case, as shown in FIG. 14, the solar cell module 1 is directly fixed to the gantry 7 by bolts 6 through mounting holes provided in the peripheral portion thereof.

[0006]

However, in the first installation method, since the frame material is combined with the solar cell module, there is a problem that the module weight is heavy and the manufacturing cost is high.

When installing a solar cell module,
For example, when a fixing tool is used, the fixing tool is applied to the solar cell module, and a procedure such as adjusting the position of the screw hole of the gantry and tightening bolts is required. In addition, in the method of FIG. 13B that does not use the fixing tool, the operation is further complicated because the bolt is tightened below the solar cell module. In other words, when there is not enough space below the module, such as when it is installed on the roof of a building, the lower part of the solar cell module cannot be accessed, and the installation work is physically impossible.

Further, in the state after installation, FIG.
In the installation method using the fixing device 9 shown in FIG.
10 between adjacent solar cell modules 1
Can be. In addition, since the power generation by the solar cell cannot be substantially performed at the location of the gap 10, a power generation loss occurs. Also, since the fixing tool 9 and the head of the bolt 6 are visible from the outside,
There was also a problem that the appearance was unfavorable.

On the other hand, in the case of the second installation method, the first
As in the case of the installation method, the procedure of tightening the bolts in accordance with the positions of the screw holes of the gantry is used, so that there is a problem that the installation work is very complicated. In addition, there is also a problem that the head of the bolt is not visible because the head of the bolt is visible.

Further, a solar cell module is, for example, shown in FIG.
5A, the solar cell element 13 is sealed with an EVA (ethylene-vinyl acetate copolymer) resin 12,
Also, a fluororesin film 11 as a protective material on the surface side,
Further, a configuration in which the metal reinforcing plate 14 is integrally provided on the back surface side is adopted. In the second installation method, since there is no frame material for protecting the peripheral portion of the solar cell module, the end portions of the fluororesin film 11 and the EVA resin 12 are exposed. When the solar cell module is installed outdoors in this state, mechanical external stress such as collision of objects such as pebbles on the periphery of the module is applied, and as shown in FIG. There has been a problem that the solar cell module may be destroyed by "peeling of the protective material".

Accordingly, an object of the present invention is to install a solar cell module which is lightweight and inexpensive in manufacturing cost by a simple installation work, has a beautiful appearance after the installation is completed, and is excellent in protecting the peripheral portion of the module. To provide a solar cell module array.

[0012]

According to the present invention, there is provided a solar cell module array having a cap having a pair of insertion portions having at least a hook-shaped engaging portion at a tip and a holding portion for holding the solar cell module. A solar cell module array in which a solar cell module is sandwiched and fixed by a support member having a material, and at least a supporting portion for supporting the solar cell module, and a pair of locking portions for fixing the cap material. Te, the pair of insertion of the cap material, have a displaceable resilient in the direction of opening to open and close, which is formed between the pair of insertion portions, the supporting
The holding member is a temporary fixing member capable of locking the hook portion of the cap material.
A locking portion is provided .

Further, the solar cell module array of the present invention has at least a cap member having a pair of insertion portions having hook-shaped locking portions at the ends and a holding portion for holding the solar cell module. A solar cell module array for holding and fixing a solar cell module by a support member having a support portion for supporting the solar cell module and a pair of locking portions for fixing the cap material, wherein the support member The pair of locking portions of
Have a displaceable resilient in a direction opening formed in between the pair of locking portions are opened and closed, the supporting member is a cap
A temporary locking portion capable of locking the hook-shaped portion of the material;
It is characterized by having. Solar cell module of the present invention
Has a hook-shaped locking portion at least at the tip
A pair of insertion sections and a solar cell module
And a cap material having
A support for supporting the solar cell module;
Support having a pair of locking portions for fixing the cap material
A solar cell that holds the solar cell module between members
A fixing mechanism for the pond module, wherein the cap material
A pair of inserts is formed between the pair of inserts.
The opening has elasticity that can be displaced in the opening and closing direction,
The support member is a temporary member on which the hook portion of the cap material can be locked.
It is characterized in that a locking portion for stopping is provided. Departure
The fixing mechanism of Ming's photovoltaic module
A pair of insertion portions having hook-shaped locking portions on the
Cap having a holding portion for holding a module
Material, and at least support for the solar cell module
Support portion and a pair for fixing the cap material
The solar cell module is supported by a support member having a locking portion.
This is a fixing mechanism of the solar cell module
Thus, the pair of locking portions of the support member
That can be displaced in the direction in which the opening formed between the
The support member has the hook-like portion of the cap material.
It is specially provided that the
Sign.

In each of the above structures, it is preferable that the support portion of the support member is formed in a concave shape or a convex shape, and the peripheral edge of the solar cell module is formed so as to conform to these shapes.

[0015] Further, at the center of the locking portion of the support member,
It is preferable to provide a temporary fixing locking portion that can lock the hook-shaped portion of the cap material.

Further, it is preferable to provide a gasket material formed of an elastic material between the holding portion of the cap material and the surface of the solar cell module. The cross-sectional shape of the gasket material is preferably hollow.

It is preferable that a member having an adhesive material on both front and back surfaces is provided between the support portion of the solar cell module of the support member and the back surface of the solar cell module.

(Embodiments) Next, embodiments of the present invention will be described. FIGS. 1 to 4 show an example in which a solar cell module having no frame material on the periphery is sandwiched and fixed between a support member and a cap material having a gasket material. 1 to 3
FIG. 4 is a side view showing a procedure for installing the solar cell module from the direction of arrow C in FIG. 4, and FIG. 4 is a perspective view thereof.

In this example, as shown in FIG. 1, a solar cell module 1 having no frame material, a cap material 2 provided with a gasket material 3 having a hollow portion with a double-sided adhesive tape (not shown), a support member for the solar cell module 4, a fixing member 5, a bolt 6, a gantry 7, and the like. A fixing member 5 is welded to the support member 4, and the fixing member 5 is fixed to the gantry 7 by bolts 6.

Next, the installation procedure of the solar cell module 1 will be described with reference to FIGS.

First, in FIG. 1, after the support member 4 is fixed to the gantry 7 by bolts 6, the support portion 4 of the support member 4 is fixed.
The peripheral portion of the solar cell module 1 is placed on a. Next, the insertion portion 2 b of the cap member 2 is pushed into the opening 4 d of the support member 4. At this time, the opening width α of the insertion portion 2b of the cap member 2 is smaller than the opening width β of the opening 4d of the support member 4, and the opening 4d is gradually narrowed from the upper portion to the lower portion. By pushing the cap member 2 downward, the insertion portion 2b having elasticity can be closed.

FIG. 2 shows a state in which the hook-like portion 2c at the tip of the insertion portion 2b of the cap member 2 is locked by the temporary fixing locking portion 4e of the support member 4. In this state, since the insertion portion 2b is closed and locked to be smaller than the initial opening width α as described above, the cap member 2 does not fall out. Further, the deformation amount of the gasket material 3 crushed at this time is small, and the solar cell module 1 is only sandwiched by a weak force.
Can move in the direction of arrow A. Therefore, when the solar cell module 1 is displaced from a desired installation position, it can be adjusted and moved in this state.

FIG. 3 shows a state where the cap member 2 is completely pushed into the support member 4 and the installation is completed. At this time,
Since the hollow portion of the gasket material 3 is crushed, the solar cell module 1 is continuously pressed downward and the cap material 2 is continuously pressed upward by the force B for returning the gasket material 3 to the original state. Thereby, the solar cell module 1 is sandwiched and fixed between the support member 4 and the cap member 2.

As described above, due to the presence of the gasket material 3, the holding portion 2a of the cap material 2 and the solar cell module 1
Can be prevented from contacting unevenly, and a uniform force can be applied to the solar cell module 1. When the gasket material 3 is not provided, the solar cell module 1 does not come into surface contact with the cap material 2 as shown in FIG.

In addition, since the gasket material 3 can prevent rainwater from entering, the installation method has a rain-closing structure that does not leak rainwater below the solar cell module 1.

The present invention is not limited to this example. Further, each of the above components will be described below.

(Solar Cell Module) The solar cell module used in the present invention does not have a frame material at the periphery of the module in order to manufacture the module at a low weight and at a low cost.

It is preferable that the peripheral portion of the module can be bent. As a result, as shown in FIGS. 8 to 10, the peripheral portion of the solar cell module 21 is bent to provide a fixing method for more securely holding and fixing the module. .

Further, it is preferable that the surface layer on the light incident side is covered with a light-transmitting material having weather resistance and flexibility, and a metal reinforcing plate having weather resistance is provided on the back side. In this case, for example, the surface layer has a two-layer structure of a fluororesin film / EVA (ethylene-vinyl acetate copolymer) (the light incident side is a fluororesin film), silicone resin, fluororesin, acrylic silicon, polyester, nylon And the like. Further, for protection of the module, a glass nonwoven fabric may be sandwiched between the above resins. Examples of the metal reinforcing plate used on the back side include a galvanized steel plate, a steel plate further having a weather-resistant substance such as a fluororesin and vinyl chloride thereon, titanium, and a stainless steel plate.

As described above, when a flexible translucent material is used for the surface layer, the solar cell element is required to be excellent in flexibility and impact resistance. As such a solar cell element, an element in which an amorphous silicon-based semiconductor layer is formed on a flexible conductive substrate is preferable.

Here, the configuration of the solar cell module is not limited to that described above. It is not essential that the module be bent at the periphery of the module as described above. For example, as described later in Examples, a rigid body such as glass or ceramic is used as a base of the solar cell module, and a module manufactured as a rigid body having a sufficient mechanical structural strength by itself is also sufficient for the solar cell module array of the present invention. Can be adapted. In this case, a solar cell element using a compound semiconductor such as single crystal silicon, polycrystalline silicon, and copper indium selenide is also applicable.

Further, as shown in FIG. 12, a pair of opposing peripheral two sides 3 out of four peripheral sides of the solar cell module 39.
9a and 39b, the other two sides 39 are provided to increase the mechanical structural strength of the module alone.
It is also possible to bend c and 39d.

In the example shown in FIG. 12, the length of two sides 39a and 39b of the periphery of the module to be clamped and fixed is 120 cm,
The length of the two sides 39c and 39d of the module periphery to be bent is a module size of 30 cm. The structure of the module is a two-layer structure of a fluororesin film / EVA (ethylene-vinyl acetate copolymer) as a surface protective layer, and a 0.8 mm thick galvanized steel sheet on the back side. is there. Then, with this solar cell module 39 having its two sides 39c and 39d bent,
By sandwiching and fixing the two sides 39a and 39b, the solar cell module 3 is sufficient so as not to fix all four sides of the module periphery but to withstand load such as wind force.
9 can be installed.

The above-mentioned module bending shape is not limited to the downward bending shown in FIG. For example, a folded structure that does not leak rainwater on the back side of the module can be used to provide a solar cell module installation structure having a rain-end structure.

(Photovoltaic Element) The solar cell module used in the present invention comprises at least one or more photovoltaic elements. An example thereof is as shown in FIG. 11, and includes a conductive base 34, a back electrode layer 35, a semiconductor layer 36 as a photoelectric conversion member, a transparent electrode layer 37, and a collecting electrode 38. The back electrode layer 35 can also be used by the conductive substrate 34.

As the conductive substrate 34, a substrate made of stainless steel, molybdenum, tungsten, cobalt, chromium, iron, tantalum, niobium, zirconium, aluminum, an aluminum alloy, copper, titanium or the like is used.

As the semiconductor layer 36, a compound semiconductor such as an amorphous silicon semiconductor, single crystal silicon, polycrystalline silicon, and copper indium selenide is used, and an amorphous silicon semiconductor is particularly suitable. In the case of an amorphous silicon-based semiconductor, a silane gas and a forming gas for forming a desired conductor are reacted by a plasma CVD method. In the case of a polycrystalline silicon semiconductor, it is formed by sheeting molten silicon or heat-treating an amorphous silicon semiconductor. In the case of CuInSe ₂ / CdS, it is formed by a method such as electron beam evaporation, sputtering, or electrodeposition (deposition by electrolysis of an electrolytic solution). As the structure of the semiconductor, a pin junction or a pn junction Schottky junction is used, and a multi-layer structure such as tandem or triple can be used. The semiconductor layer 36 has a structure sandwiched between at least the back electrode layer 35 and the transparent electrode layer 37.

As the back electrode layer 35, a metal layer or a metal oxide, or a composite layer of a metal layer and a metal oxide is used. As the material of the metal layer, Ti, Al, Ag, N
i, Fe, Cu, Cr, Mo and the like are used, and ZnO, TiO ₂ , SnO ₂ , ITO and the like are adopted as metal oxides. As a method for forming the metal layer and the metal oxide, resistance heating evaporation, electron beam evaporation, sputtering,
There are a spray method, a CVD method, an impurity diffusion method and the like.

The material of the current collecting electrode 38 on the grid for efficiently collecting the current generated by the photoelectromotive force on the transparent electrode layer 37 is Ti, C
A conductive paste such as r, Mo, W, Al, Ag, Ni, Cu, Su, and silver paste is used. Sputtering using a mask pattern in the method of forming the grid electrode,
Resistive heating, a deposition method such as CVD, or a method of etching and patterning after depositing a metal layer on the entire surface,
There are a method of directly forming a grid electrode pattern by photo-CVD, a method of forming a grid of a negative pattern of a grid electrode followed by plating, a method of printing a conductive paste, and the like. As the conductive paste, one obtained by dispersing a fine powder of gold, silver, copper, nickel, an alloy thereof, a mixed carbon or the like with a binder polymer is usually used. Examples of the binder polymer include resins such as polyester, epoxy, acrylic, alkyd, polyvinyl acetate, rubber, urethane, and phenol. Further, as a bus bar material for further collecting and transporting the current collected by the grid electrode, tin, solder-coated copper, nickel, or the like is used.
The connection of the bus bar to the grid electrode is made with a conductive adhesive or solder.

(Capping Material) The capping material used in the present invention does not need to be composed of a single member, but may be composed of a plurality of members. An example is shown in FIG. FIG. 6 (a) is obtained by welding an insertion member 16 made of a stainless steel material having spring elasticity to a holding member 15 made of a stainless steel plate having mechanical strength. In FIG. 6B, a stainless steel insertion member 18 similar to the above is fastened to a holding member 17 made of aluminum by drawing. FIG. 6 (c) shows a holding member 19 obtained by bending a galvanized steel sheet so as to form a slit.
The insertion member 20 welded in advance is inserted into the slit.

Further, regarding the longitudinal direction of the cap material,
As shown in FIG. 5, the insertion member may not be provided in the entire region but intermittently with respect to the holding member.

Further, the lower side of the holding portion of the holding member is not a smooth surface, but may have various shapes for the purpose of increasing the holding force and frictional force. For example, as shown in FIG. 6A, the shape may be convex downward, or as shown in FIG.

(Gasket Material) In the solar cell module array of the present invention, the use of a gasket material is not essential, but as described above, for suppressing the solar cell module with a uniform force by surface contact, or as described above. It is very advantageous when considering the rain storm.

When a gasket material is used, it is preferable that the gasket material is bonded to the cap material in advance with a double-sided adhesive tape or the like in terms of workability, but is not limited to this. It is also conceivable to provide a double-sided adhesive tape or the like below the gasket material to measure the adhesion between the gasket material and the surface of the solar cell module. The material of the gasket material is preferably excellent in water resistance, weather resistance and heat resistance, and examples thereof include ethylene / propylene rubber and silicon rubber. Further, as for the shape of the gasket material, it is preferable to provide a hollow portion as shown in FIG. 6C, since the deformation amount of the gasket material can be increased and the pressing force of the gasket material on the solar cell module can be increased. This is not the case. Depending on the material used for the gasket material, the gasket can have an appropriate shape according to its elasticity. The number of gasket materials used is not limited to one per side, but may be plural.

(Supporting Member) The material of the supporting member used in the present invention is preferably one having excellent mechanical strength and weather resistance.
For example, a galvanized steel sheet, a steel sheet further having a weather-resistant substance such as a fluororesin or vinyl chloride thereon, titanium, a stainless steel sheet and the like can be mentioned. Further, the support member is not limited to a single member, but may be configured by a plurality of members. Further, the support portion of the support member is not limited to a smooth surface, and is formed in various shapes such as a concave shape and a convex shape.

[0046]

In the present invention, a solar cell module which does not have a frame material at the peripheral portion is used. In the present invention , the solar cell module array is provided with a pair of insertion parts having at least a hook-shaped locking part at the tip and a cap material having a holding part for holding the solar cell module. And a support member having at least a support portion for supporting the solar cell module and a pair of locking portions for fixing the cap material. in this case,
The pair of insertion portions of the cap material has elasticity that can be displaced in a direction in which an opening formed between the insertion portions opens and closes. Alternatively, the pair of locking portions of the support member has elasticity such that the locking portions can be displaced in a direction in which the opening opens and closes. With this configuration, the solar cell module can be sandwiched and fixed between the cap member and the support member.

As for the solar cell module itself, by using a module that does not have a frame material at the periphery of the module, the frame material cost can be reduced and the manufacturing cost can be reduced. Further, since the weight of the solar cell module can be reduced, the transportation cost of the solar cell module can be reduced. Further, the workability during the installation work of the solar cell module is greatly improved.

Furthermore, in the installation method, since the solar cell module is not fixed by bolts but is fixed by pressing the cap member as described above,
Installation work becomes very simple. Therefore, regarding the appearance after the installation is completed, the heads of the bolts are not seen, so that the appearance can be beautifully finished.

Further, since the peripheral portion of the solar cell module is sandwiched and protected by the cap material, it is possible to prevent the destruction of the solar cell module due to "peeling of the protective material".

[0050] Further, by the peripheral edge of the solar cell module forms a support portion of the support member so as to conform to the shape a concave shape or convex shape, in modules not be rigid strength enough in the solar cell module itself Can also be fixed firmly.

[0051] Also, in the central portion of the engaging portion of the supporting support member, by providing the temporary fastening engagement portion hooked portion of the insertion portion distal end of the cap member can be locked, the solar cell module by a small force Temporary fixation is possible, and adjustment movement to a desired installation position in that state is possible.

[0052] In further, by providing the gasket material formed of an elastic material between the clamping portion and the solar cell module surface of caps material, the clamping portion of the cap member and the solar cell module is unevenly contact Is prevented. Also, since a uniform force can be applied, it can be firmly fixed. Furthermore, since the infiltration of rainwater can be prevented by the gasket material, an installation method having a rain break structure that does not leak rainwater to the lower side of the solar cell module can be provided.

[0053] Also, by providing a member having an adhesive material on both surfaces between the supporting portion and the back face of a solar battery module of the solar cell module of the supporting support member, it is temporarily fixed to the desired installation position. This prevents the solar cell module from moving at the moment when the cap material is pushed in and completely clamped and fixed, thereby preventing the solar cell module from being incompletely clamped and fixed.

[0054]

EXAMPLES Examples of the present invention will be described below, but the present invention is not limited to these examples. (Embodiment 1) FIG. 7 is a cross-sectional view of a solar cell module array of Embodiment 1, and FIG. 8 is a partially enlarged view thereof. In the first embodiment, in short, the solar cell module 21 in which the support portion of the support member 24 is formed in a concave shape and the peripheral portion is formed so as to conform to the concave portion is fixed by the support member 24 and the cap member 22. It is of a configuration.

The solar cell module array according to the first embodiment includes a solar cell module 21 having no frame member, a cap member 22 provided with a gasket member 23 in advance by a double-sided adhesive tape (not shown), a support member 24 for the solar cell module, and a bolt. 25 and a gantry 26. The support member 24 is fixed to the gantry 26 by bolts 25.

The solar cell module 21 is obtained by sealing an amorphous silicon semiconductor element produced on a stainless steel substrate with a resin, and providing a metal reinforcing plate on the back surface side. A fluorine resin film having a thickness of 50 μm is used on the light incident side surface, and EVA (ethylene-vinyl acetate copolymer) is used as an adhesive layer between the amorphous silicon semiconductor element, the fluorine resin film and the metal reinforcing plate. It is filled with a thickness of about 1 mm. These are produced by a vacuum lamination method. The metal reinforcing plate is made of galvanized steel sheet 0.3 m thick, which is often used as roofing material for buildings.
m.

In Example 1, as shown in FIG. 8, the periphery of the solar cell module 21 was bent into a concave shape (portion D in the figure). Module holding portion 2 of cap material 22
A stainless steel plate having a thickness of 2 mm was used for 2a, and a stainless steel plate having a low temperature annealing treatment having a thickness of 0.4 mm was used for an insertion portion, and these were joined by welding. Furthermore, the gasket material 23 is made of silicon rubber.
And bonded to the stainless steel plate having a thickness of 2 mm with a double-sided adhesive tape (not shown). In addition, the cap material 22 is provided in the concave portion (D
(Part). Support member 2
4 is made of a galvanized steel plate having a thickness of 1.6 mm, and has a concave supporting portion (D portion) as shown in FIG.
It was prepared so that

The photovoltaic element (amorphous silicon semiconductor element) was manufactured in the following procedure. After forming Al / ZnO as a back reflection layer on a 0.125 mm thick stainless steel substrate by a sputtering method, an n-type a-Si layer, an i-type a-Si layer, and a p-type microcrystalline Si layer are formed by a plasma CVD method. Is formed, and then In ₂ O as a transparent electrode layer is formed.
No. ₃ was formed by vapor deposition of In by a resistance heating method in an O ₂ atmosphere. Further, a silver paste was screen-printed as a current collecting electrode to produce an amorphous silicon semiconductor device.

The procedure for installing the solar cell module 21 of this embodiment is roughly the same as that described in the above embodiment. However, in the first embodiment, the support member 24
Since the concave portion of the solar cell module 21 was placed on the concave portion formed in the above, the temporary fixing mechanism for fine adjustment was not used.

The solar cell module 21 in the present embodiment
Has a frame thickness of 0.3 m without frame material as described above.
Since it has only a metal reinforcing plate of m, the rigidity of the module is not sufficiently strong. For this reason, the module bends in the direction of arrow E in FIG. However, in Example 1, since the periphery of the solar cell module 21 was formed in a concave shape as described above,
The solar cell module 21 is sandwiched and fixed by forces in three directions as indicated by arrows in FIG. 8, and therefore the solar cell module 21 does not come off. That is, by employing the method of installing the solar cell module 21 as in the first embodiment, it is possible to perform a strong installation even when the rigidity of the solar module is low.

Embodiment 2 Embodiment 2 is an example in which a rigid solar cell module whose surface is covered with glass is clamped and fixed by using a support member having a temporary fixing locking portion.

FIG. 9 is a sectional view of a solar cell module array according to the second embodiment. The solar cell module 27 was produced in the same manner as in Example 1 except that a glass having a thickness of 2 mm was used on the front surface, and a laminated film in which an aluminum foil was sandwiched between fluororesin films on the back surface was used. is there. Further, in the second embodiment, since the support member 28 having the temporary fixing locking portion 28e was used, fine adjustment was performed in the temporary fixing state of the solar cell module 27 as described in the above embodiment. Later, the final module is fixed.

The solar cell module 27 used in the second embodiment uses glass having a thickness of 2 mm.
The module has sufficient rigidity as a single unit. For this reason, since the solar cell module 27 does not bend due to wind force or the like, a force for removing the solar cell module 27 in the horizontal direction indicated by the arrow G as in the first embodiment is not applied. Therefore, the solar cell module 27 according to the second embodiment can be installed without performing a process such as making the end portion concave as shown in FIG. The other specific contents such as the material of the support member 28 are the same as those in the first embodiment.

Example 3 In Example 3, a supporting portion of a supporting member of a solar cell module was formed in a convex shape, and a solar cell module in which a peripheral portion was formed so as to match the supporting portion was sandwiched between the supporting member and a cap material. This is a fixed example.

FIG. 10 is a sectional view showing the features of the solar cell module array of the third embodiment. The support portion of the support member 31 in the third embodiment is formed in a convex shape (H portion).
An acrylic foam having a thickness of 1 mm was bonded to a double-sided adhesive tape 29 as a base material. There, convex shape (H part in the figure)
The solar cell module 27 having a peripheral portion formed so as to conform to the above condition was placed and temporarily fixed with the above-mentioned double-sided adhesive tape 29. Thereafter, the solar cell module 27 was completely sandwiched and fixed between the cap member 30 and the support member 31.

In the third embodiment, the double-sided adhesive tape 29 is not used for auxiliary fixing of the holding and fixing of the solar cell module 27 by the cap member 30 and the supporting member 31 but for temporarily fixing the solar cell module 27. The main purpose is. That is, at the moment when the cap member 30 is pushed in and completely clamped and fixed, it is prevented that the solar cell module 27 moves and that the convex portions (H portions) of the respective members do not match. . Therefore, in Example 3, the double-sided pressure-sensitive adhesive tape 29 was not used over the entire area in the longitudinal direction, but was used only partially.

The cap member 30 of the third embodiment is formed by drawing out an aluminum material and fixing the insertion member 30b manufactured in the same manner as in the first embodiment with screws 32. The gasket material 33 was made of silicon rubber in the same manner as in Example 1, and was bonded to the cap material 30 in advance. Further, in Example 3, the gasket material 33 was divided into two parts so as not to be used at the apex of the convex part so as to uniformly suppress the gasket material 33. Other specific contents such as the solar cell module 27 are the same as those in the first embodiment.

In the third embodiment, each member is formed in a convex shape (H portion) as described above, and is clamped and fixed so as to coincide with each other. Will be pinched by the force of. Therefore,
Even in the case of the solar cell module having low rigidity as in the case of the first embodiment, the installation method of the third embodiment can firmly fix the solar cell module.

[0069]

As described above, according to the first and second aspects of the present invention, the solar cell module is sandwiched between the pair of insertion portions having at least tips of hook-shaped locking portions and the solar cell module. A solar cell module array sandwiched and fixed by a support member having a cap member having a portion, at least a support portion for supporting the solar cell module, a fixing portion, and a pair of locking portions for fixing the cap material. In the above, the pair of insertion portions of the cap material has elasticity capable of being displaced in a direction in which an opening formed between the insertion portions is opened or closed, or the pair of locking portions of the support member is formed of a pair of these The opening formed between the locking portions has elasticity capable of being displaced in the opening and closing direction. In addition, by using a solar cell module that does not have a frame material at the periphery thereof, the frame material cost can be reduced and the manufacturing cost can be reduced. Furthermore, since the weight of the solar cell module can be reduced, the cost of transporting the solar cell module can be reduced, and the workability during installation work can be greatly improved.

Further, in the installation method, since the solar cell module is clamped and fixed by pushing the cap member, the installation work is very simple. Furthermore, the appearance after the installation is completed can be beautifully finished because the head of the bolt is not visible. In addition, since the peripheral portion of the module is sandwiched and protected by the cap material, it is possible to prevent the solar cell module from being broken due to "peeling of the protective material".

Further, by forming the supporting portion of the supporting member into a concave shape or a convex shape so as to conform to the shape of the peripheral edge of the solar cell module array.
Even when the solar cell module alone has insufficient rigidity and strength, it can be firmly fixed.

In addition, the provision of a temporary fixing locking portion which can lock the hook-shaped portion at the tip of the insertion portion of the cap material is provided at the center of the locking portion of the support member as described in claim 4, so that a weak force is applied. The solar cell module can be temporarily fixed, and can be adjusted and moved to a desired installation position in that state.

Further, by providing a gasket material between the cap material holding portion and the surface of the solar cell module, the occurrence of uneven contact between the cap material support portion and the solar cell module is prevented. , A uniform force can be applied, and these can be firmly fixed. And since the infiltration of rainwater can be prevented by the gasket material, an installation method having a rain-closing structure that does not leak rainwater to the lower side of the solar cell module can be provided.

Further, by providing a member having an adhesive material on both front and back surfaces between the solar cell module support portion of the support member and the back surface of the solar cell as described in claim 6, a temporary installation position to a desired installation position is provided. Can be fixed. This prevents the solar cell module from moving at the moment when the cap material is pushed in and completely clamped and fixed, thereby preventing the solar cell module from being incompletely clamped and fixed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an embodiment of a solar cell module array according to the present invention.

FIG. 2 is a cross-sectional view showing an embodiment of the solar cell module array of the present invention.

FIG. 3 is a cross-sectional view showing an embodiment of a solar cell module array according to the present invention.

FIG. 4 is a perspective view showing an embodiment of the solar cell module array of the present invention.

FIG. 5 is a perspective view showing an example of a cap material of the present invention.

FIGS. 6A to 6C are cross-sectional views each showing an example of the cap material of the present invention.

FIG. 7 shows a first embodiment of a solar cell module array according to the present invention.
FIG.

FIG. 8 shows a first embodiment of a solar cell module array according to the present invention.
FIG.

FIG. 9 shows a second embodiment of the solar cell module array according to the present invention.
FIG.

FIG. 10 is a cross-sectional view of Embodiment 3 of the solar cell module array of the present invention.

FIG. 11 is a cross-sectional view illustrating an example of a photovoltaic element used for a solar cell module array according to the present invention.

FIG. 12 is a perspective view showing an installation example of a solar cell module used in the solar cell module array of the present invention.

FIGS. 13A to 13C are cross-sectional views each showing an example of a conventional installation method of a solar cell module array.

FIG. 14 is a cross-sectional view showing an example of a conventional installation method of a solar cell module array.

FIGS. 15A and 15B are partially enlarged cross-sectional views of a peripheral portion of a conventional solar cell module having no frame material.

[Explanation of symbols]

 1, 21, 27, 39 solar cell module, 2, 22, 30 cap material, 3, 23, 33 gasket material, 4, 24, 28, 31, 40 support member, 5 fixing member, 6 bolt, 7, 26 base , 8 frame material, 9 fixture, 10 gap, 11 fluororesin film, 12 EVA resin, 13 solar cell element, 14 metal reinforcing plate, 15, 17, 19 clamping member, 16, 18, 20 insertion member, 29 double-sided adhesive Tape, 32 screws, 34 conductive substrate, 35 back electrode layer, 36 semiconductor layer, 37 transparent electrode layer, 38 current collecting electrode.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-173256 (JP, A) JP-A-61-38046 (JP, A) JP-A-4-124360 (JP, A) 130545 (JP, U) Hira 4-134319 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01L 31/04-31/078 E04D 3/366, 3/40

Claims (9)

(57) [Claims] 1. A cap material having at least a pair of insertion portions having a hook-shaped locking portion at a tip, and a holding portion for holding a solar cell module, and a support for supporting at least the solar cell module. A solar cell module array for holding and fixing the solar cell module by a supporting member having a portion and a pair of locking portions for fixing the cap material, wherein the pair of insertion portions of the cap material is The opening formed between the insertion portions has elasticity capable of being displaced in the opening and closing direction, and the support member is provided with the hook of the cap material.
A solar cell module array, comprising a temporary fixing locking portion capable of locking the shape portion . 2. A cap material having at least a pair of insertion portions having hook-shaped locking portions at the ends and a holding portion for holding the solar cell module, and a support for supporting at least the solar cell module. A solar cell module array for holding and fixing a solar cell module by a support member having a portion and a pair of locking portions for fixing the cap material, wherein the pair of locking portions of the support member are: The opening formed between the pair of locking portions has elasticity capable of being displaced in the opening and closing direction, and the support member is locked by the hook-shaped portion of the cap material.
A solar cell module array, wherein a temporary fixing locking portion is provided . 3. The method according to claim 1, wherein the support portion of the support member is formed in a concave or convex shape, and a peripheral edge of the solar cell module is formed to match the concave or convex shape. The solar cell module array according to claim 1. 4. The solar cell module array according to claim 1, wherein the temporary fixing locking portion is provided at a central portion of the locking portion of the support member. 5. The solar cell module array according to claim 1, wherein a gasket material formed of an elastic material is provided between the holding portion of the cap material and the surface of the solar cell module. 6. Between the supporting portion of the solar cell module of the supporting member and the back surface of the solar cell module,
The solar cell module array according to claim 1, wherein members having an adhesive material are provided on both front and back surfaces. 7. The solar cell module array according to claim 5, wherein the cross-sectional shape of the gasket material is hollow. 8. A hook-shaped locking portion at least at a tip
A pair of insertion sections and a solar cell module
And a cap material having
A support for supporting the solar cell module;
Support having a pair of locking portions for fixing the cap material
A solar cell that holds the solar cell module between members
A pond module fixing mechanism, The pair of insertion portions of the cap material is
Displaceable in the direction in which the opening formed between the recesses opens and closes
The support member is provided with the hook of the cap material.
Provision of a locking part for temporary fixing that can lock the shaped part
A fixing mechanism for a solar cell module. 9. A hook-shaped locking portion at least at the tip
A pair of insertion sections and a solar cell module
And a cap material having
A support for supporting the solar cell module;
Support having a pair of locking portions for fixing the cap material
The sun that sandwiches and fixes the solar cell module with members
A battery module fixing mechanism, The pair of locking portions of the support member is between the pair of locking portions.
Has elasticity that allows the opening formed in the
The support member is locked by the hook-shaped portion of the cap material.
And a locking portion for temporary fixing that can be provided.
Solar cell module array.