JP2013048222A - Solar cell module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light-weight and translucent solar cell module, capable of significantly facilitating additional installation on an existing transparent member and transparent window member.SOLUTION: The solar cell module is formed by laminating a thin sheet glass sheet, translucent resin intermediate films and a translucent film with a translucent adhesive layer in this order. Between the resin intermediate films, a photovoltaic power generation cell is disposed, and the adhesive layer is bonded to the existing glass surface to be fixed.

Description

  The present invention relates to a solar cell module.

  Conventionally, solar power generation is particularly promising as an effective use of natural energy in response to environmental problems. The center is a silicon (Si) solar cell module, and crystalline and thin-film solar cells are known as types of silicon power generation layers.

  For example, Patent Document 1 discloses an example of a crystalline solar cell module used for a solar panel constructed on a roof of a building. In FIG. 11, the side view of this solar cell module 100 is shown. In the solar cell module 100, photovoltaic power generation cells (single crystal cells) 106, 106... Are laminated on the back surface 102 </ b> A of the solar cell cover glass 102 via an EVA (ethylene vinyl acetate copolymer) film 104. A back glass 108 is laminated on the photovoltaic cells 106, 106. And the terminal box 110 connected to the photovoltaic cell 106,106 ... is being fixed to the back surface of the back glass 108. FIG.

  Here, sunlight is incident on the solar cell module 100 from the surface 112 side of the cover glass 102 into the solar cell module 100 as indicated by an arrow L in FIG. Therefore, in this case, the main power generation surfaces (light receiving surfaces) of the photovoltaic power generation cells 106, 106... Face upward (the cover glass 102 side) in FIG. Moreover, in patent document 1, in order to prevent the reflected light pollution that sunlight reflects in the surface (light incident surface) 112 of the cover glass 102 especially, the reflected light prevention function (anti-glare property) is given to the light incident surface 112. I try to have it. In addition, light passes through the gap between the solar power generation cells 106 and 106, and the back glass 108 is glass, so that light can be transmitted to the back surface of the module (also referred to as having transparency).

  Although not described in Patent Document 1, there is also a module that uses an opaque panel material (aluminum plate) for the portion of the back glass. In this case, light does not pass through the back surface of the solar cell module.

JP 2001-358346 A

  However, the conventional solar cell module without translucency is a window (transparent member, transparent) because there is no translucency, whether newly installed at the time of new construction or when only the solar cell module is additionally installed later. It was not possible to install it on a window member), and it had to be installed on the roof surface, fence or wall surface.

  On the other hand, in order to make the solar cell module itself rigid in order to carry out the construction method as described above, the conventional translucent solar cell module has been composed of laminated glass having a plate thickness. For this reason, the solar cell module becomes heavy, and when installing at the time of new construction, an installation device such as a quadruple frame or a dedicated mounting hardware is also required. Furthermore, in the case where only the solar cell module is attached to the existing window, the existing window glass must be removed and replaced with it. In the case of additional installation of only a solar cell module combined with a certain thickness glass, there is a problem that construction work is very troublesome and installation cost is high.

  The present invention has been made in view of such circumstances, and is a light-weighted and translucent solar cell module that can be additionally installed very easily on existing transparent members and transparent window members. The purpose is to provide.

  In order to achieve the above object, the solar cell module of the present invention has translucency provided with a transparent plate, two or more resin intermediate films having translucency, and an adhesive layer having translucency. And a film having a laminated structure in this order, a photovoltaic power generation cell is disposed between the two or more resin intermediate films, and the adhesive layer is adhered to an existing transparent member and installed. And

  As a result, the solar cell module can be easily installed by retrofitting simply by pasting it on the existing transparent member, and the existing transparent member can be easily remodeled into a photovoltaic power generation panel with less work. be able to.

  In one embodiment, the photovoltaic power generation cell is disposed with its main power generation surface facing away from the transparent plate, and the adhesive layer is disposed on the indoor side of an existing transparent window member. It is preferable to install by adhering to the surface.

  As a result, the existing transparent window member can be easily retrofitted to a photovoltaic power generation panel, especially because it is simply pasted to the transparent window member from the indoor side, so there is no need for a scaffold for construction, and construction is also easy. .

  Moreover, as one embodiment, it is preferable that the said adhesion layer has easy-adhesion property, and it can repeat and affix and remove.

  As a result, it can be easily attached to an existing transparent window member, and it can be easily removed, so it can be easily relocated and accommodated in the case of room redesign, relocation, or moving. is there.

  Moreover, as one embodiment, it is preferable that a release paper is provided on the adhesive layer side of the film, and the release paper is peeled off when the adhesive layer is bonded to the transparent window member.

  By installing the release paper on the adhesive layer as described above, the adhesive layer of the film can be prevented from adhering to various places when the solar cell module is transported or constructed.

  In one embodiment, the transparent plate is preferably a thin glass, and the thin glass is preferably a chemically strengthened glass.

  Thereby, the intensity | strength of a solar cell module increases and it is not damaged even if a solar cell module is curved to some extent especially when affixing a solar cell module to the existing transparent member and a transparent window member.

  Moreover, as one embodiment, it is preferable that the thickness of the said sheet glass is 0.2 mm-2.0 mm.

  Thereby, a solar cell module can be reduced in weight and transportation and construction of a solar cell module become easy.

  In one embodiment, the transparent plate is a resin plate, and the thickness of the resin plate is preferably 1 mm to 5 mm.

  Thereby, the strength of the solar cell module can be ensured and the weight can be reduced, and the solar cell module can be easily transported and installed.

  In order to achieve the object, a solar cell module of the present invention includes a first transparent plate, two or more resin intermediate films having translucency, a second transparent plate, And a spacer member to which the first adhesive surface is bonded along the peripheral edge of the transparent plate-like body, and a photovoltaic cell between the two or more resin intermediate films. Is disposed, and the second adhesive surface opposite to the first adhesive surface of the spacer member is adhered to the existing transparent member, whereby air is interposed between the second transparent plate-like body and the transparent member. It is characterized in that a layer is interposed.

  The present invention is a laminated glass type comprising a first transparent plate, two or more resin interlayers having translucency and having photovoltaic cells disposed therebetween, and a second transparent plate The solar cell module is bonded to an existing transparent member via a spacer member.

  Similarly, the solar cell module of the present invention can be easily installed by simply attaching the solar cell module to an existing transparent member, and can be easily installed by retrofitting the existing transparent member easily. It can be upgraded to a solar power panel.

  In the solar cell module of this invention, it is preferable to provide a sealing material on the outer peripheral surface of the spacer member. Therefore, the air layer between the second transparent plate-like body and the transparent member can be sealed, and a multilayer glass can be constituted by the transparent member and the solar cell module.

  The solar power generation cell of the present invention is disposed with its main power generation surface facing away from the first transparent plate-like body, and the second adhesive surface of the spacer member is disposed on an existing transparent window. It is preferable to install the member by adhering it to the indoor side surface of the member.

  The first transparent plate and the second transparent plate of the present invention are preferably thin glass, and the thin glass is preferably chemically strengthened glass.

  The thickness of the thin glass of the present invention is preferably 0.2 mm to 2.0 mm.

  The first transparent plate and the second transparent plate of the present invention are resin plates, and the thickness of the resin plate is 1 mm to 5 mm. preferable.

  In order to achieve the above object, a solar cell module of the present invention includes a transparent plate, two or more resin interlayers laminated on the transparent plate and having translucency, and the transparent plate. A spacer member to which a first adhesive surface is adhered along the peripheral edge of the body, a photovoltaic cell is disposed between the two or more resin intermediate films, and the first of the spacer member An air layer is interposed between the transparent plate-like body and the transparent member by adhering a second adhesive surface opposite to the adhesive surface to an existing transparent member.

  The present invention provides a transparent plate-like body, a solar cell module comprising two or more resin intermediate films having translucency between which a photovoltaic cell is disposed, to an existing transparent member via a spacer member. It is glued.

  Similarly, the solar cell module of the present invention can be easily installed by simply attaching the solar cell module to an existing transparent member, and can be easily installed by retrofitting the existing transparent member easily. It can be upgraded to a solar power panel.

  In the solar cell module of this invention, it is preferable to provide a sealing material on the outer peripheral surface of the spacer member. Therefore, the air layer between a transparent plate-shaped body and a transparent member can be sealed, and a multilayer glass can be comprised with a transparent member and a solar cell module.

  The photovoltaic power generation cell of the present invention is disposed with its main power generation surface facing away from the transparent plate-like body, and the second adhesive surface of the spacer member is placed in a chamber of an existing transparent window member. It is preferable to install it by bonding it to the inner surface.

  The transparent plate-like body of the present invention is a thin glass, and the thin glass is preferably a chemically strengthened glass.

  The thickness of the thin glass of the present invention is preferably 0.2 mm to 2.0 mm.

  The transparent plate-like body of the present invention is a resin-made plate-like body, and the thickness of the resin-made plate-like body is preferably 1 mm to 5 mm.

  As described above, the solar cell module bonded to the existing transparent member via the spacer member does not bond the entire surface of the solar cell module to the transparent member. For this reason, even if air (bubbles) remains on the adhesion surface, the area of the adhesion surface of the solar cell module of the present invention is significantly smaller than that of the full adhesion type solar cell module. Is inconspicuous in appearance. Therefore, the solar cell module of the present invention is improved in design on appearance.

  Moreover, since the solar cell module provided with the spacer member has an air layer, the existing transparent member (particularly, float glass, It is possible to reduce the possibility that the glass with a mesh will cause thermal cracking.

  As described above, according to the present invention, the solar cell module can be easily added later by simply attaching it to an existing transparent member or transparent window member or bonding the solar cell module via a spacer member. The existing transparent member, transparency, and window member can be easily refurbished to a photovoltaic power generation panel with less labor.

The perspective view which shows one Embodiment which applied the solar cell module (solar cell panel) which concerns on this invention to the existing window glass Main section enlarged view of solar cell module The perspective view which shows a mode that a solar cell module is affixed on a window glass The perspective view which expands and shows a terminal box The attachment method of the terminal box to a solar cell module is shown, (A) is the attachment to a small edge, (B) is a perspective view which shows the attachment to a back surface Side view showing a state where a triangular seal is applied to a solar cell module affixed to existing glass Side view showing a solar cell module with a back sheet layer sandwiched from both sides by glass The principal part expanded sectional view which shows the other form of a solar cell module Main part enlarged longitudinal sectional view showing another form of the solar cell module Main part enlarged longitudinal sectional view showing another form of the solar cell module Side view showing a conventional solar cell module

  Hereinafter, a solar cell module according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing an embodiment in which a solar cell module (solar cell panel) according to the present invention is applied to an existing window glass (transparent window member).

  As shown in FIG. 1, the solar cell module 10 is affixed on the existing window glass 14 fixed to the support | pillar (window frame) 12, such as a mullion method. In addition, in FIG. 1, although the form which affixed the solar cell module 10 with respect to the two existing window glass 14 arrange | positioned between the three support | pillars 12 is shown, the window glass 14 and a solar cell module are shown. The number of 10 is not limited to this, and it goes without saying that the solar cell module 10 may be attached to three or more window glasses 14 respectively. Further, the number of solar cell modules 10 to be attached to one window glass 14 is not limited to one.

  The configuration of the solar cell module 10 will be described later in detail, but briefly described here. The solar cell module 10 has a cover glass 16 disposed in the upper layer in the cross-sectional view of FIG. The single-sided light-receiving power generation cell 18 is enclosed in the intermediate film layer, and an adhesive sheet (film having an adhesive layer) 22 is arranged on the back surface side of the intermediate film layer. And the whole surface of the solar cell module 10 is affixed on the inner surface side (indoor side) of the window glass 14 by the adhesive sheet 22.

  That is, the single-sided light-receiving power generation cell 18 is arranged so that the light-receiving surface faces the window glass 14 side, and sunlight incident from the outside of the window glass 14 is not from the cover glass 16 side but the adhesive sheet 22 side. Light is received from and generated. Therefore, the adhesive sheet 22 and the interlayer film have translucency.

  As shown in FIG. 1, the single-sided light-receiving power generation cells 18, 18... Are connected in series by interconnectors 26 that are connected to each other. It is taken out through.

  FIG. 2 is an enlarged cross-sectional view of the main part of the solar cell module 10.

  As shown in FIG. 2, the solar cell module 10 includes a transparent cover glass 16 disposed on the outermost side (the uppermost layer in FIG. 2), and a back sheet layer 20 disposed on the inner side of the cover glass 16. ing. The backsheet layer 20 includes two or more intermediate film layers 20A and 20B, and the single-sided light-receiving power generation cell 18 is disposed between the intermediate film layers 20A and 20B. The light-receiving surface of the single-sided light-receiving power generation cell 18 is directed to the side opposite to the cover glass 16 (the lower side in FIG. 2).

  As will be described later, the solar cell module 10 is configured to be integrated in a factory. At that time, the intermediate layer 20A and 20B are welded using an autoclave device or the like, and the backsheet layer is completely integrated. 20

  An adhesive sheet (film having an adhesive layer) 22 for attaching the solar cell module 10 to an existing window glass is disposed below the back sheet layer 20. A release paper 24 is attached to the outside of the adhesive sheet 22. The release paper 24 is peeled off from the adhesive sheet 22 when the solar cell module 10 is attached to the window glass 14.

  In FIG. 2, the adhesive sheet 22 is arranged on the entire surface of the back sheet layer 20, but the arrangement form of the adhesive sheet 22 is not limited to the entire surface. FIG. 8 is an enlarged cross-sectional view of a main part showing another form of the solar cell module 10, and the adhesive sheet 23 of the solar cell module 10 shown in FIG. 8 is shaped like a frame along the peripheral surface of the backsheet layer 20. Has been placed. Moreover, the arrangement | positioning form of the adhesive sheets 22 and 23 is not limited above, What kind of form may be sufficient if it is an arrangement | positioning form which can affix the solar cell module 10 to the window glass 14. FIG.

  On the other hand, since the solar cell module 10 receives sunlight from the adhesive sheet 22 side shown in FIG. 2 and generates power by the single-sided light receiving power generation cell 18, the adhesive sheet 22 is made of a transparent material so as to transmit sunlight. The one is selected.

  Moreover, in order to affix the solar cell module 10 to the window glass 14, the cover glass 16 needs to aim at weight reduction, and thin glass is used. The thickness is 0.2 to 2.0 mm, preferably 0.5 to 1.8 mm, more preferably 0.7 to 1.1 mm. Moreover, since it was made thin like this, it is preferable to use chemically strengthened glass in order to increase the strength.

  Chemical strengthening of the thin glass is performed by immersing the flat glass in a treatment solution for ion exchange. That is, by immersing the plate glass in a treatment solution for ion exchange, ions having a small ion diameter (for example, Na + ions) contained in the glass surface are replaced with ions having a large ion diameter (for example, K + ions). A compressive stress layer is formed on the glass surface and the strength is improved. In order to balance the stress, a tensile stress layer is formed inside the strengthened sheet glass. Moreover, it is not limited to chemical strengthening and may be heat strengthened. That is, the cover glass 16 may be tempered glass or double tempered glass.

  The intermediate film layers 20A and 20B are resin intermediate films, and EVA (ethylene vinyl acetate copolymer) is particularly preferably used.

  As the adhesive sheet 22, an easily adhesive sheet having a weak adhesive force is used so that the solar cell module 10 is lightened and the solar cell module 10 once attached can be easily removed. As such an adhesive sheet (film having an adhesive layer) 22, for example, Gelpoly (trade name) which is a film for surface protection and high transparency protective decoration manufactured by Panac Co., Ltd., and a chemical product manufactured by JEOL Seiki Co., Ltd. A gel polymer sheet or the like is preferably used. In this specification, there are expressions of adhesion and adhesion, but these mean that the strength of adhesion is different, and either may be used according to the application.

  A release paper 24 is affixed to the outside of the adhesive sheet 22. The solar cell module 10 is configured by integrating the cover glass 16 to the adhesive sheet 22 with the release paper 24 as a thin module. The solar cell module 10 integrated in this way is affixed to the existing window glass 14 from the indoor side as shown in FIG. When actually attaching the solar cell module 10 to the existing window glass 14, the release paper 24 is peeled off from the adhesive sheet 22, and the solar cell module 10 is attached to the window glass 14 with the exposed adhesive sheet 22.

  FIG. 3 is an explanatory view showing a state in which the solar cell module 10 is attached to the window glass 14.

  When affixing the solar cell module 10 to the existing window glass 14, the surface of the window glass 14 to which the solar cell module 10 is affixed is first cleaned. Next, the release paper 24 of the solar cell module 10 is peeled off from the adhesive sheet 22, and the center portion of the solar cell module 10 is curved so as to protrude toward the window glass 14 as shown in FIG. Is first brought into contact with the window glass 14.

  Next, as shown by the arrows in FIG. 3, the solar cell module 10 is entirely in contact with the window glass 14 from the center of the solar cell module 10 toward both ends, so that the entire solar cell module 10 is window glass. 14 will be pasted. Thus, by sticking the solar cell module 10 to the window glass 14 from the central portion toward both ends, the number and size of bubbles interposed between the window glass 14 and the solar cell module 10 are reduced. be able to. When water is applied to the adhesion surface when the solar cell module 10 is attached to the window glass 14, water intervening in the adhesion surface can be easily removed, so that water may be used. In this embodiment, the easy-adhesive adhesive sheet 22 is attached to the backsheet layer 20. Instead of such an adhesive sheet 22, a transparent easy-adhesive adhesive is applied to the back surface of the backsheet layer 20. May be.

  In this way, particularly by reducing the weight of the cover glass 16 as a thin glass, it can be easily attached to the window glass using the easy-adhesive adhesive sheet 22 having a low adhesive strength. In addition, it is preferable to use the chemically strengthened glass cover glass 16 because it is difficult to be broken even if the solar cell module 10 is curved when being attached. As described above, the solar cell module 10 integrated and assembled as a module at the factory is attached to the existing window glass 14 at the site, and wiring is connected on the spot, so that the existing window glass 14 is installed with less trouble. This makes it very easy to upgrade to a photovoltaic module.

  In addition, by reducing the weight of the solar cell module 10, the solar cell module 10 can be easily attached to the window glass 14 by the easy-adhesive adhesive sheet 22. It can also be easily peeled off, making it easy to change rooms and move. In addition, when affixing the solar cell module 10 to the window glass 14 semipermanently, the solar cell module 10 is not attached to the window glass by using a double-sided adhesive tape or an adhesive having a strong adhesive force instead of such an easy-adhesive adhesive sheet 22. 14 may be firmly fixed.

  Moreover, the place where the solar cell module 10 is pasted is not limited to the window glass 14, and is made of, for example, an existing glass such as a staircase, a corridor, a veranda or a rooftop fence facing the outside where the sunlight hits the apartment. The solar cell module 10 is affixed to the handrail (transparent member), and the existing glass handrail can be easily modified to the solar power generation module. In addition, what was described as a transparent member here shows what has transparency including a window glass.

  In addition, in the case of a solar cell module to be attached to the existing glass surface facing these outside, the power generation cell is not the above-described single-sided light-receiving power generation cell, but a double-sided light-receiving power generation cell, and its main power generation surface is Direct to the side receiving sunlight.

  FIG. 4 is an enlarged perspective view of the terminal box 30.

  In the example shown in FIG. 4, the terminal box 30 is attached to the window glass 14 located on the side of the solar cell module 10 with a double-sided tape 32.

  In FIG. 4, the current generated by each power generation cell 18 of the solar cell module 10 is collected via the interconnector 26 and sent to the terminal box 30 via the bus bar (common power supply line) 27. The bus bar 27 drawn out from the solar cell module 10 is connected to the connection terminal 34 of the terminal box 30.

  The current sent to the terminal box 30 is transmitted to the external device via the external wiring (socket) 36.

  In addition, as a method of attaching the terminal box 30 to the solar cell module 10, as shown in FIG. 5 (A), a method of attaching to the small face of the solar cell module 10, and as shown in FIG. There is a method of attaching to the back surface of the battery module 10.

  In either case, the external wiring (socket) 36 for drawing current from the terminal box 30 to the outside may have a female terminal or a male terminal incorporated in the terminal box 30 in a cordless manner.

  In addition, rainwater is applied to the solar cell module 10 in the case of external use such as when the solar cell module 10 is attached to an existing glass handrail facing the outside of an apartment or the like. Therefore, since the adhesive force of the solar cell module 10 with respect to the window glass 14 is weak when it is only the easily adhesive sheet 22, rainwater enters the gap between the window glass 14 and the adhesive sheet 22, and the window glass 14 This causes the solar cell module 10 to peel off.

  Therefore, as shown in FIG. 6, in the case of external use, after the solar cell module 10 is attached to the existing glass 40, a sealing material 42 having a substantially triangular cross section is placed around the solar cell module 10. . Thereby, since rainwater can be prevented from entering the gap between the window glass 14 and the adhesive sheet 22, it is possible to prevent the solar cell module 10 from peeling from the window glass 14.

  In addition, even in the case of indoor use in which the solar cell module 10 is pasted on the indoor side of the existing window glass 14, in the case where condensation occurs, the cross section of the solar cell module 10 is omitted as shown in FIG. It is preferable to place a triangular sealing material 42. The sealing material 42 is preferably a light-transmitting material. For example, a transparent resin such as acrylic is fixed with a transparent adhesive, or the light-transmitting (translucent) silicon sealant itself is sealed. Can be selected as appropriate.

  FIG. 7 is a cross-sectional view showing a modification of the solar cell module 10 ′. The solar cell module 10 ′ shown in FIG. 7 has a configuration in which the back sheet layer 20 is sandwiched between the cover glasses 16A and 16B from both sides.

  That is, the solar cell module 10 ′ shown in FIG. 7 is configured such that the back sheet layer 20 sandwiching the power generation cell 18 is sandwiched between the two glasses 16 </ b> A and 16 </ b> B from both sides. These two glasses 16A, 16B are preferably both chemically strengthened ultra-thin glasses as used in the example described above.

  Therefore, the thickness of the solar cell module 10 ′ in the form of FIG. 7 is increased by the amount of the glass 16 </ b> B increased by about one compared with the solar cell module 10 shown in FIG. 2.

  Then, an easily adhesive sheet 22 and release paper 24 are installed outside the glass 16B. When this solar cell module 10 'is attached to the existing window glass 14, the release paper 24 is peeled off and bonded. The sheet 22 is pasted as shown in FIG.

  In this way, the solar cell module 10 'is configured in which the photovoltaic cells 18 are integrated with the backsheet layer 20 disposed therein in the form of laminated glass using the two thin glass plates 16A and 16B. By doing so, it is possible to ensure the flatness of the peripheral edge portion on the side to be attached to the existing glass, and it is possible to prevent the fall by securely attaching the solar cell module 10 'to the existing glass. Moreover, the intensity | strength of solar cell module 10 'also improves by using two sheet glass.

  As described above, according to the present embodiment, an existing solar cell module having translucency is formed by configuring a solar cell module integrated with an adhesive sheet having an adhesive (adhesive) layer using thin glass. This makes it possible to install additional windows very easily.

  Thus, since it can be easily installed later on an existing window glass, it is easy to create energy (creation energy) by using an ordinary existing window glass as a solar cell panel. Moreover, since it can affix on a window glass from the indoor side at this time, a scaffold is unnecessary and a large-scale construction is unnecessary. At the same time, since the solar cell is installed indoors and is an interior work, a special waterproof layer is unnecessary and the cost is reduced.

  Further, by using a thin glass for the cover glass of the solar cell module, it is possible to improve the transportation efficiency as a result of the weight reduction. In particular, when the terminal box is provided separately, it is possible to further increase the transportation efficiency. Further, since the weight is reduced, an easily adhesive sheet can be used, and attachment and removal can be easily performed, and removal is possible. For this reason, for example, it can be installed in a rental office or a rental house, and can be relocated, so that it is possible to cope with remodeling and moving in the room. Moreover, it can be affixed to an arbitrary position on the window glass, and it is possible to adjust solar radiation (solar radiation shielding) according to the construction site. Here, the adjustment of solar radiation enables adjustment of solar radiation by appropriately selecting a solar battery module in which the distance between the solar battery cells in the solar battery module and the adjacent solar battery cells is changed.

  FIG. 9 is an enlarged vertical sectional view of a solar cell module 40 showing another modification of the solar cell module.

  The solar cell module 40 includes a thin glass (first transparent plate) 42, two or more transparent resin intermediate films 44, a thin glass (second transparent plate) 46, and a thin glass 46. A frame-like spacer member 48 to which the first bonding surface 48A is bonded along the peripheral edge of each is laminated in this order. The solar power generation cell 18 is disposed between the resin intermediate films 44.

  According to the solar cell module 40, the second adhesive surface 48 </ b> B that opposes the first adhesive surface 48 </ b> A of the spacer member 48 is adhered to the existing window glass 14, so that the thin glass 46 and the window glass 14 are interposed. The air layer 50 is interposed and installed.

  The solar cell module 40 in FIG. 9 is a laminated glass type solar cell module composed of a thin glass plate 42, a resin intermediate film 44 in which the photovoltaic power generation cells 18 are arranged, and a thin glass plate 46. 14 is adhered.

  Similarly, the solar cell module 40 can be easily installed later by simply attaching the solar cell module 40 to the existing window glass 14, and the window glass 14 can be easily installed with less work. It can be upgraded to a solar power panel.

  In the solar cell module 40, the air layer 50 between the thin glass plate 46 and the window glass 14 is sealed by placing the sealing material 52 on the outer peripheral surface of the spacer member 48. Thus, a multi-layer glass composed of the window glass 14 and the solar cell module 40 is configured.

  Note that the adhesive applied to the first adhesive surface 48A and the second adhesive surface 48B of the spacer member 48 is preferably a primary sealing material used for double-layer glass. As the primary sealing material, a butyl rubber which is not usually subjected to a crosslinking treatment, or a material containing a filler such as carbon black for coloring and reinforcement based on polyisobutylene is used. Further, the sealing material 52 is preferably a secondary sealing material used in double-glazed glass. As the secondary sealing material, a material based on a curable elastomer such as polysulfide, silicon, urethane, or the like, which has been appropriately modified to exhibit adhesiveness with glass, or the like is used.

  The solar power generation cell 18 of the solar cell module 40 is also arranged with its main power generation surface facing away from the thin glass plate 42.

  Moreover, it is preferable that the thin glass 42 and 46 is chemically strengthened glass, and it is preferable that the thickness is 0.2 mm-2.0 mm.

  FIG. 10 is an enlarged vertical cross-sectional view of a solar cell module 60 showing another modification of the solar cell module 60.

  The solar cell module 60 includes a thin glass (transparent plate-like body) 62 and two or more resin intermediate films 64 having translucency laminated on the thin glass 62 and along the peripheral edge of the thin glass 64. A frame-shaped spacer member 66 to which the first bonding surface 66A is bonded is provided. Further, the photovoltaic power generation cell 18 is disposed between the resin intermediate films 64.

  According to the solar cell module 60, the second adhesive surface 66 </ b> B facing the first adhesive surface 66 </ b> A of the spacer member 66 is adhered to the existing window glass 14, so that the thin glass plate 46 and the window glass 14 are interposed. An air layer 68 is interposed.

  This solar cell module 60 is obtained by bonding a solar cell module made of a thin glass plate 62 and a resin intermediate film 64 on which the photovoltaic power generation cells 18 are arranged to the window glass 14 via a spacer member 66.

  Similarly, the solar cell module 60 can be easily installed later by simply attaching the solar cell module 60 to the window glass 14, and the existing window glass 14 can be easily installed with less work. It can be upgraded to a solar power panel.

  In the solar cell module 60, the air layer 68 between the thin glass plate 62 and the window glass 14 is sealed by placing the sealing material 70 on the outer peripheral surface of the spacer member 66. Thus, a multi-layer glass composed of the window glass 14 and the solar cell module 60 is configured.

  Note that the adhesive applied to the first adhesive surface 66A and the second adhesive surface 66B of the spacer member 66 is preferably a primary sealing material used for double-layer glass. Further, the sealing material 70 is preferably a secondary sealing material used in double-glazed glass.

  The solar power generation cell 18 of the solar cell module 60 is also arranged with its main power generation surface facing away from the thin glass plate 62.

  Moreover, it is preferable that they are the sheet glass 62 and a chemically strengthened glass, and it is preferable that the thickness is 0.2 mm-2.0 mm.

  As in the solar cell modules 40 and 60 shown in FIGS. 9 and 10, the solar cell module bonded to the window glass 14 via the spacer members 48 and 66 has the entire surface of the solar cell modules 40 and 60 applied to the window glass 14. Does not adhere. For this reason, even if air (bubbles) remains on the second adhesion surfaces 48B and 66B of the spacer members 48 and 66, the area of the second adhesion surfaces 48B and 66B is larger than that of the full adhesion type solar cell module. Since it is much smaller, the air remaining on the second bonding surfaces 48B and 66B is not noticeable in appearance. Therefore, the solar cell modules 40 and 60 using the spacer members 48 and 66 are improved in design on appearance.

  Moreover, since the solar cell modules 40 and 60 provided with the spacer members 48 and 66 have the air layers 50 and 68, the window glass 14 (particularly, the heat generated when the solar power generation cell 18 generates power). The possibility of thermal cracking of glass (float glass, netted glass) can be reduced.

  In the embodiment described above, the thin plate glass is exemplified as the transparent plate-like body, but the present invention is not limited to this, and a transparent resin plate-like body may be used. Examples of the transparent resin plate-like body include polycarbonate and acrylic.

  Moreover, in embodiment, although glass was illustrated as a transparent member and a transparent window member, it is not limited to this, A transparent resin-made plate-shaped body may be sufficient. Examples of the transparent resin plate-like body include polycarbonate and acrylic. In this case, the thickness of the resin plate is preferably 1 mm to 5 mm. Thereby, while being able to ensure the intensity | strength of a solar cell module, it can reduce in weight and transportation and construction of a solar cell module become easy.

  The solar cell module according to the present invention has been described in detail above. However, the present invention is not limited to the above examples, and various improvements and modifications may be made without departing from the gist of the present invention. Of course.

  DESCRIPTION OF SYMBOLS 10 ... Solar cell module, 12 ... Support | pillar (window frame), 14 ... Window glass, 16 ... Cover glass, 18 ... Single-sided light-receiving power generation cell, 20 ... Back sheet layer, 20A, 20B ... Intermediate film layer, 22 ... Adhesive sheet 23 ... Adhesive sheet, 24 ... Release paper, 26 ... Interconnector, 27 ... Bus bar, 30 ... Terminal box, 32 ... Double-sided tape, 34 ... Connection terminal, 36 ... External wiring (socket), 40 ... Solar cell module, 42 ... Thin glass, 44 ... Resin intermediate film, 46 ... Thin glass, 48 ... Spacer member, 48A ... First adhesive surface, 48B ... Second adhesive surface, 50 ... Air layer, 52 ... Sealing material, 60 ... Solar cell Module, 62 ... Thin glass, 64 ... Resin intermediate film, 66 ... Spacer member, 66A ... First adhesive surface, 66B ... Second adhesive surface, 68 ... Air layer, 70 ... Sealing material

Claims (19)

A transparent plate,
Two or more resin intermediate films having translucency;
A translucent film provided with a translucent adhesive layer;
Are stacked in this order,
A photovoltaic cell is disposed between the two or more resin interlayers,
The solar cell module is characterized in that the adhesive layer is attached to an existing transparent member. The solar power generation cell is disposed with its main power generation surface facing away from the transparent plate,
2. The solar cell module according to claim 1, wherein the adhesive layer is installed by being adhered to a room-side surface of an existing transparent window member.   The solar cell module according to claim 1, wherein the pressure-sensitive adhesive layer has easy adhesion and can be repeatedly attached and detached.   The solar cell module according to claim 3, wherein a release paper is installed on the adhesive layer side of the film, and the release paper is peeled off when the adhesive layer is bonded to the transparent window member.   The solar cell module according to any one of claims 1 to 4, wherein the transparent plate is a thin glass, and the thin glass is a chemically strengthened glass.   The solar cell module according to claim 5, wherein a thickness of the thin glass is 0.2 mm to 2.0 mm.   The solar cell according to claim 1, wherein the transparent plate is a resin plate, and the thickness of the resin plate is 1 mm to 5 mm. module. A first transparent plate,
Two or more resin intermediate films having translucency;
A second transparent plate,
A spacer member to which the first adhesive surface is bonded along the peripheral edge of the second transparent plate-like body;
Are stacked in this order,
A photovoltaic cell is disposed between the two or more resin interlayers,
An air layer is interposed between the second transparent plate and the transparent member by adhering the second adhesive surface of the spacer member opposite to the first adhesive surface to the existing transparent member. A solar cell module characterized by being installed.   The solar cell module according to claim 8, wherein a sealing material is provided on an outer peripheral surface of the spacer member. The solar power generation cell is arranged with its main power generation surface facing away from the first transparent plate,
10. The solar cell module according to claim 8, wherein the second adhesion surface of the spacer member is installed by being adhered to a room-side surface of an existing transparent window member.   The first transparent plate-like body and the second transparent plate-like body are thin glass plates, and the thin glass plates are chemically tempered glasses. The solar cell module according to.   The solar cell module according to claim 11, wherein a thickness of the thin glass is 0.2 mm to 2.0 mm.   The first transparent plate-like body and the second transparent plate-like body are resin-made plate-like bodies, and the thickness of the resin-made plate-like body is 1 mm to 5 mm. The solar cell module according to claim 8, 9 or 10. A transparent plate,
Two or more resin interlayers laminated on the transparent plate and having translucency;
A spacer member having a first adhesive surface bonded along the peripheral edge of the transparent plate-like body,
A photovoltaic cell is disposed between the two or more resin interlayers,
The second adhesive surface opposite to the first adhesive surface of the spacer member is adhered to an existing transparent member, so that an air layer is interposed between the transparent plate and the transparent member. A solar cell module.   The solar cell module according to claim 14, wherein a sealing material is provided on an outer peripheral surface of the spacer member. The solar power generation cell is disposed with its main power generation surface facing away from the transparent plate,
16. The solar cell module according to claim 14, wherein the second adhesion surface of the spacer member is installed by being adhered to an indoor surface of an existing transparent window member.   The solar cell module according to any one of claims 14, 15 and 16, wherein the transparent plate-like body is a thin glass, and the thin glass is a chemically strengthened glass.   The solar cell module according to claim 17, wherein the thickness of the thin glass is 0.2 mm to 2.0 mm.   The solar cell according to claim 14, 15, or 16, wherein the transparent plate is a resin plate, and the thickness of the resin plate is 1 mm to 5 mm. module.

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