JP2012019023A - Solar cell module assembly and moving body equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of tensile strength of a lead wire and reduce the thickness of a solar cell module assembly by adopting a module structure which enables the reduction in the height of the solar cell module housed in a housing.SOLUTION: In a solar cell module assembly 1, a solar cell module 20 is housed in a housing 1. The solar cell module assembly 1 includes conductive lead members 41 connected to an electrode terminal part of a back electrode film on a lower surface of the solar cell module 20 and led out from a backside sheet 65 on the lower surface of the solar cell module 20 to the outside, conductive end surface sealing members 45 contacted with the lead member 41 to seal end surfaces of the solar cell module 20, and conductive fixing members 15 contacted with the end surface sealing members 45 to fix end parts of the solar cell module 20 to the housing 10. Each output cable 18 for extracting electric power is connected to the fixing member 15.

Description

  The present invention relates to a solar cell module assembly in which a solar cell module is housed in a housing and a mobile body on which the solar cell module assembly is mounted.

  FIG. 9 is a schematic cross-sectional view showing an example of a conventional structure of an on-vehicle solar cell module assembly.

  The vehicle-mounted solar cell module assembly 100 has a structure in which a solar cell module 120 is housed in a housing (housing) 110 as an attachment to the body of an automobile. It is designed to be fixed on the panel.

  The solar cell module 120 has fixing devices 115 and 115 attached to opposite sides, respectively. The fixing devices 115 and 115 are fixed to the bottom surface 111 of the housing 110 with a screw or an adhesive (not shown), thereby providing a housing. It is supported and fixed in the body 110.

  10 to 12 are exploded perspective views showing the configuration of a conventional solar cell module 120, and FIG. 13 is a schematic cross-sectional view taken along the line CC of FIG. 10 to 12 are perspective views of the solar cell module 120 as viewed from the lower surface side.

As shown in FIGS. 10 to 13, the solar battery cell 155 includes a transparent electrode film 155 a and a photoelectric conversion layer on the lower surface of a translucent glass substrate (hereinafter referred to as translucent substrate) 151, as shown in FIG. 13. A layer 155b and a back electrode film 155c are stacked in this order. As the light-transmitting substrate 151, there is a heat resistant resin such as glass or polyimide. Examples of the transparent electrode film 155a include SnO ₂ , ZnO, and ITO. As the photoelectric conversion layer 155b, there are silicon-based photoelectric conversion films such as amorphous silicon and microcrystalline silicon, and compound-based photoelectric conversion films such as CdTe and CuInSe ₂ . The back electrode film 155c is made of, for example, a ZnO transparent conductive film and a silver thin film.

  The solar battery cell 155 configured in this manner is an elongated strip shape as shown in FIGS. 10 and 11 and has a length over almost the entire width of the translucent substrate 151. A solar battery string 156 in which a plurality of solar battery cells 155 are connected in series is configured by connecting one transparent electrode film and the other back electrode film to each other.

  On the end of the transparent electrode film of the solar cell 155 at one end of the solar cell string 156, a strip-shaped P-type electrode terminal portion 157 having substantially the same length as that of the solar cell 155 is formed. On the end of the back electrode film of the battery cell 155, a strip-shaped N-type electrode terminal portion 158 having substantially the same length as the solar battery cell 155 is formed. The P-type electrode terminal portion 157 and the N-type electrode terminal portion 158 serve as an electrode extraction portion.

  A positive electrode current collector 160 called a bus bar made of a copper foil having substantially the same shape and size as the P-type electrode terminal portion 157 is electrically and mechanically joined to the entire surface of the P-type electrode terminal portion 157, so that the N-type electrode A negative electrode current collector 161 having substantially the same shape and size as the terminal portion 158 is electrically and mechanically joined to the entire surface of the N-type electrode terminal portion 158. As these joining means, soldering or conductive paste can be used.

  In the above configuration, the positive electrode lead wire 162 and the negative electrode lead wire 163 made of a flat cable covered with an insulating film (hereinafter referred to as “insulating film”) 159 are parallel with their distal ends shifted in the width direction. (Or in a straight line with the tip portions facing each other).

  One end portion of the positive electrode lead wire 162 is connected to the center position of the positive electrode current collector portion 160, and the other end portion is positioned at the substantially center portion of the solar cell string 156 and to the surface of the solar cell string 156. The output lead portion 162a is bent at a predetermined angle (vertical direction in this example). Similarly, one end portion of the negative electrode lead wire 163 is connected to the center position of the negative electrode current collector 161, the other end portion is positioned substantially at the center portion of the solar cell string 156, and is relative to the surface of the solar cell string 156. The output lead portion 163a is bent at a predetermined angle (vertical direction in this example).

  The positive electrode lead wire 162 and the negative electrode lead wire 163 are made of the same material (that is, copper foil) as the positive electrode current collector 160 and the negative electrode current collector 161, and as a means for joining each lead wire and the current collector, Soldering or spot welding can be used. The positive electrode lead 162 and the negative electrode lead 163 extend over the plurality of solar cells 155, but the lead wires 162 and 163 are entirely covered with the insulating film 159. 155 is not short-circuited.

  In this state, as shown in FIG. 12, the sealing member (sealing) is performed with the slit holes 167 and 166 inserted through the output lead portions 162a and 163a of the positive lead wire 162 and the negative lead wire 163, respectively. (Stop insulating film) 164 and a back sheet 165 which is a weather-resistant and highly insulating back protective material are laminated, and the entire surface of the solar cell string 156 is laminated and sealed. Here, as the sealing member 164, a thermoplastic polymer film is preferable, and those made of EVA (ethylene vinyl acetate resin) or PVB (polyvinyl butyral resin) are optimal. Further, the back sheet 165 has a three-layer structure of PET / Al / PET (PET: polyethylene terephthalate) or a three-layer structure of PVF / Al / PVF (PVF: polyvinyl fluoride resin film) to ensure moisture resistance. ing. In other words, PET or PVF alone can prevent the intrusion of water droplets attached, but cannot prevent the invasion of water vapor. Therefore, an Al layer that is a conductive metal layer (waterproof layer) that can prevent the invasion of water vapor is interposed inside. I am letting.

  In the solar cell string 156 configured as described above, as shown in FIGS. 12 and 13, the positive lead wire 162 and the negative lead wire 163 projecting downward from the through hole 166 of the back sheet 165 are accommodated. Thus, the terminal box 130 is attached to the back sheet 165. The leading ends 162a and 163a of the lead wires 162 and 163 are individually fixed to the terminal blocks 131 and 132 inside the terminal box 130 with screws 133 and the like, and one ends of the output cables 141 and 142 for taking out electric power to the outside. The parts are also individually fixed to the terminal blocks 131 and 132 by screws 133 or the like. Further, the other end portions of the output cables 141 and 142 are led out through a grommet 113 attached to an opening 112 formed in the bottom surface 111 of the housing 110 as shown in FIG. In FIG. 13, the terminal blocks 131 and 132 are shifted in the height direction (perpendicular to the back sheet 165) to take a distance between the electrodes (creeping distance) in the height direction. The terminal blocks 131 and 132 may be arranged in a parallel direction with respect to the back sheet 165 to take a distance between the electrodes (creeping distance) in the lateral direction (parallel direction).

  As described above, in the structure of the conventional solar cell module 120, the positive electrode current collector 160 and the negative electrode current collector 161 called bus bars made of copper foil are soldered to the P-type electrode terminal portion 157 and the N-type electrode terminal portion 158. The leading ends 162 a and 163 a of the lead wires 162 and 163 connected to the positive current collector 160 and the negative current collector 161 are led to the terminal box 130. In this case, since the positive electrode current collector 160 and the negative electrode current collector 161 are easily peeled off and have no tensile strength, the lead wires 162 and 163 are screwed and fixed to the terminal blocks 131 and 132 inside the terminal box 130. Each lead wire 162, 163 has a tensile strength.

  That is, in the solar cell module 120, the terminal box 130 is a back sheet 165 which is the back surface of the solar cell module 120 (in some cases, the module surface may be used) in order to ensure the strength of the wiring attachment portion and prevent corrosion due to moisture intrusion. ), The lead wires 162 and 163 that are wiring from the solar battery cells 155 are concentrated in the terminal box 130, and power is supplied from the terminal box 130 to the outside through the output cables 141 and 142. .

  In the structure of the conventional vehicle-mounted solar cell module assembly 100 as described above, the terminal box 130 for taking out the output cables 141 and 142 is provided on the back surface side of the solar cell module 120. It is necessary to house the solar cell module 120 including the thickness of the. That is, there is a problem that it is difficult to reduce the thickness of the casing 110 because it is necessary to secure a sufficient space in the height direction of the casing 110.

  Therefore, a solar cell module has been proposed in which a function corresponding to a terminal box is added to the end surface of the solar cell module instead of attaching a terminal box to the module back or front surface of the solar cell module (see, for example, Patent Document 1). .

  FIG. 14 is a cross-sectional view showing the end structure of the solar cell module described in Patent Document 1.

  In this solar cell module 200, a terminal (lead wire) 201 such as a copper foil for taking out the electric power of the solar cell exposed from the periphery of the solar cell module and a copper wire 211 in the cable 210 are electrically connected. An edge cover 230 having a substantially U-shaped cross section is fitted into the peripheral end portion of the solar cell module 200 so as to enclose the connection portion, and the entire edge cover 230 is further included and supported. The fixing member 240 is shaped so as to be fitted into the peripheral edge of the solar cell module 200.

JP-A-10-229214

  According to the solar cell module 200 described in Patent Document 1, it is possible to reduce the thickness by the amount that there is no terminal box on the module back surface or the front surface of the solar cell module. However, in the solar cell module 200 described in Patent Document 1, the edge cover 230 and the fixing member 240 are externally fitted to the peripheral end portion of the solar cell module. Therefore, when this solar cell module 200 is accommodated in a housing and used as a solar cell module assembly, a space corresponding to the height of the fixing member 240 is required to accommodate the fixing member 240 in the housing. That is, even in the solar cell module 200 described in Patent Document 1, the problem that it is difficult to reduce the thickness of the casing remains.

  Further, in the conventional solar cell module 120 shown in FIGS. 9 to 13, the lead wires 162 and 163 are given tensile strength by attaching the terminal box 130, but the solar cell module described in Patent Document 1 is used. 200, the lead wire 201 and the copper wire 211 in the cable 210 are connected and fixed in the edge cover 230 to give the lead wire 201 a tensile strength. That is, both the conventional solar cell module 120 shown in FIGS. 9 to 13 and the solar cell module 200 described in Patent Document 1 are provided with the terminal box 130, the edge cover 230, and the fixing in order to give the lead wires tensile strength. A member 240 is provided.

  The present invention has been devised to solve such problems, and its object is to solve the above-mentioned problem of the tensile strength of the lead wire while reducing the height (thickness) of the solar cell module housed in the housing. An object of the present invention is to provide a solar cell module assembly and a mobile body on which the solar cell module assembly is mounted, which enables the solar cell module assembly to be thinned by adopting a module structure that is suppressed as much as possible.

  In order to solve the above problems, a solar cell module assembly of the present invention is a solar cell module assembly in which a solar cell module is housed in a housing, which is connected to an electrode terminal portion of an electrode film of a solar cell, A conductive lead member led out from the back sheet of the solar cell module, a conductive end face seal member that contacts the lead member to seal the end face of the solar cell module, and contacts the end face seal member And a conductive fixing member that fixes the end of the solar cell module to the housing, and an output cable for taking out electric power is connected to the fixing member.

  According to the present invention having such a feature, the electrode terminal portion of the back electrode film of the solar cell module is covered with the sheet-like lead member, and the end surface of the solar cell module is made to be in contact with the lead member and the conductive end face seal The electrode part is taken out from the fixing member by sealing with a member and contacting the end face sealing member and fixing the solar cell module in the casing with a conductive fixing member. By adopting such a configuration, the lead wire is not used for taking out the electrode of the solar cell module, so that the problem of the tensile strength of the lead wire does not occur. Therefore, the terminal box 130 of the conventional solar cell module 120 shown in FIGS. 9 to 13 and the edge cover 230 and the fixing member 240 of the solar cell module 200 described in Patent Document 1 are not necessary. The module assembly can be thinned.

  In the present invention, the output cable has a configuration in which one end is connected to the fixing member and the other end is led out through an opening hole formed in the housing.

  According to the present invention, both the electrical connection from the electrode terminal portion of the solar cell module to the output cable and the fixing of the solar cell module and the output cable within the housing can be realized by the fixing member.

  In the present invention, the lead member is made of silver foil or copper foil, and is provided so as to cover the entire electrode terminal portion. Thereby, the electrical connection of an electrode terminal part and a lead member can be performed stably.

  Moreover, in this invention, the said end surface sealing member is set as the structure formed by apply | coating the resin adhesive which mixed nickel powder or copper powder to the base material of copper foil or aluminum foil. According to such a configuration, the end face seal member can be disposed in close contact with the lead wire and the end face of the solar cell module. Therefore, by using this end surface sealing member, electrical connection with the lead member and end surface sealing of the solar cell module can be reliably performed.

  Moreover, in this invention, the said end surface sealing member is provided so that it may seal from the end surface of the said solar cell module to an upper surface edge part. By providing the end face sealing member up to the upper edge, the end face of the solar cell module can be reliably sealed, and the contact area between the fixing member and the end face sealing member can be reliably secured when the solar cell module is fixed by the fixing member thereafter. It can be secured.

  Further, according to the present invention, the fixing member is continuous with the first horizontal piece contacting the end face sealing member of the upper surface edge of the solar cell module, and the end surface of the solar cell module is continuous from the first horizontal piece. The vertical piece is in contact with the end face seal member, and the second horizontal piece is continuous from the vertical piece and fixed in contact with the bottom surface of the housing.

  With such a configuration, the first horizontal piece of the fixing member for fixing the solar cell module so as to be pressed against the bottom surface of the housing, and the end face sealing member provided on the upper surface edge of the solar cell module, Can be reliably adhered. Thereby, electric power can be taken out stably also electrically.

  In the present invention, the second horizontal piece of the fixing member is fixed to the bottom surface of the housing by screwing, and a conductive washer is fitted into the screw, and one end of the output cable is fitted into the washer. The parts are connected and fixed.

  According to such a configuration, the fixing member can be used for fixing the solar cell module within the housing and electrically connecting and fixing the output cable. That is, it is possible to simultaneously fix the electrical connection of the output cable only by fixing the solar cell module in the housing using the fixing member.

  In the present invention, the entire conductive portion including the lead member, the end surface sealing member, and the fixing member, or the entire solar cell module including the conductive portion may be resin-sealed in the housing. Good. That is, a more reliable waterproof structure can be obtained by resin-sealing the entire conductive portion or the entire solar cell module including the conductive portion in the housing. As a result, when the solar cell module assembly of the present invention is mounted on a vehicle that is a moving body, even if water enters the housing due to long-term use due to direct exposure to wind and rain, etc., the conductive portion is surely made of resin. Since it is sealed, it is possible to prevent the occurrence of a situation such as damage to the solar cell module due to a short circuit.

  According to the solar cell module assembly of the present invention, the electrode terminal portion of the back electrode film on the lower surface of the solar cell module is covered with the sheet-like lead member, and the end surface of the solar cell module is made to be in contact with this lead member to be a conductive end surface. The solar cell module is sealed with a sealing member, brought into contact with the end surface sealing member and fixed with a conductive fixing member in the housing, and an output cable is connected to the fixing member. That is, since the lead wire is not used for extracting power from the solar cell module, the problem of the tensile strength of the lead wire does not occur. Further, since a terminal box, an edge cover, a fixing member, and the like as in the prior art are not necessary, the casing for storing the solar cell module, that is, the solar cell module assembly itself can be made thinner accordingly.

It is a top view of the vehicle-mounted solar cell module assembly which concerns on embodiment of this invention. It is a schematic sectional drawing in alignment with the AA shown in FIG. It is a perspective view which decomposes | disassembles and shows the structure of the solar cell module which concerns on embodiment. It is a perspective view which decomposes | disassembles and shows the structure of the solar cell module which concerns on embodiment. It is a perspective view which decomposes | disassembles and shows the structure of the solar cell module which concerns on embodiment. It is a schematic sectional drawing in alignment with the BB line of FIG. 5, and has shown the state before adhering and fixing an end surface sealing member. It is a schematic sectional drawing in alignment with the BB line of FIG. 5, and has shown the state after carrying out the adhesion fixation of the end surface sealing member. It is a schematic sectional drawing which shows the other structural example of the solar cell module assembly 1 which concerns on embodiment. It is a schematic sectional drawing which shows an example of the conventional structure of the solar cell module assembly for vehicle mounting. It is a perspective view which decomposes | disassembles and shows the structure of the conventional solar cell module. It is a perspective view which decomposes | disassembles and shows the structure of the conventional solar cell module. It is a perspective view which decomposes | disassembles and shows the structure of the conventional solar cell module. It is a schematic sectional drawing in alignment with CC line of FIG. 10 is a cross-sectional view showing an end structure of a solar cell module described in Patent Document 1. FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a plan view of an in-vehicle solar cell module assembly according to an embodiment of the present invention. In FIG. 1, however, the upper casing is omitted. FIG. 2 is a schematic cross-sectional view showing the structure of the on-vehicle solar cell module assembly according to the embodiment of the present invention, and is a cross-sectional view taken along the line AA shown in FIG. Including).

  This solar cell module assembly 1 has a structure in which a solar cell module 20 is housed in a housing (housing) 10, and the housing 10 is placed and fixed on, for example, a roof panel of a vehicle body. Yes.

  The housing 10 is configured by a flat storage body 11 having an open upper portion for storing the solar cell module 20 and a lid 12 for closing and sealing the upper opening of the storage body 11. Yes.

  The solar cell module 20 has fixing members 15 and 15 attached to opposite sides. The fixing members 15 and 15 are fixed to the bottom surface 11a of the housing body 11 of the housing 10 by screws 16. It is supported and fixed in the housing 10. The support fixing structure will be described in detail after the configuration of the solar cell module 20 is described.

  3 to 7 show the configuration of the solar cell module 20 according to the embodiment, and FIGS. 3 to 5 are exploded perspective views showing the configuration of the solar cell module 20. 3 and 4 show two scenes of the manufacturing process, and FIG. 5 shows the process of laminating and sealing. 3 to 5 are perspective views of the solar cell module 20 as viewed from the lower surface side. 6 and 7 are schematic cross-sectional views along the line BB in FIG. However, FIG. 6 shows a state before the end face seal member 45 described later is bonded and fixed, and FIG. 7 shows a state after the end face seal member 45 is bonded and fixed.

  The solar battery cell 55 has a transparent electrode film, a photoelectric conversion layer, and a back electrode film laminated in this order on the lower surface of a translucent glass substrate (hereinafter referred to as translucent substrate) 51, although not shown. Is formed. The configurations of the transparent electrode film, the photoelectric conversion layer, and the back electrode film are the same as those of the conventional solar cell module 120 shown in FIG.

  The solar cells 55 configured in this way are elongated strips as shown in FIG. 3 and FIG. 4 and have a length over almost the entire width of the translucent substrate 51, and the adjacent solar cells 55, A solar battery string 56 in which a plurality of solar battery cells 55 are connected in series is configured by connecting one transparent electrode film and the other back electrode film to each other.

  Then, on the end of the transparent electrode film of the solar cell 55 at one end in the solar cell string 56, a strip-shaped P-type electrode terminal portion 57 having substantially the same length as the solar cell 55 is formed, and the other end. On the end of the back electrode film of the solar battery cell 55, a strip-shaped N-type electrode terminal portion 58 having substantially the same length as the solar battery cell 55 is formed. The P-type electrode terminal portion 57 and the N-type electrode terminal portion 58 serve as an electrode extraction portion.

  On each of the P-type electrode terminal portion 57 and the N-type electrode terminal portion 58, a conductive lead member 41 formed of silver foil or copper foil is disposed so as to overlap.

  The lead member 41 is formed in substantially the same shape and size as the electrode terminal portions 57 and 58, and is disposed so as to cover the entire electrode terminal portions 57 and 58, and the current collecting portion 41a. The lead portion 41b extends from the substantially central portion in the longitudinal direction (the direction along the electrode terminal portion) toward the end portion of the translucent substrate 51. The current collector 41a is electrically and mechanically joined to the entire surface of the electrode terminal portions 57 and 58. As these joining means, soldering or conductive paste can be used. Further, at this time, the lead portion 41b is bent at a predetermined angle (vertical direction in the embodiment) with respect to the surface of the solar cell string 56, but in FIG. 3 and FIG. 4, the lead portion 41b is bent into a final shape. As shown.

  In this state, as shown in FIG. 5, the sealing member (sealing insulating film) 64 and the weather-resistant / high-insulating back surface in a state where the slit holes 67 and the slit holes 66 are respectively inserted into the lead portions 41 b. A back sheet 65 as a protective material is laminated, and the entire surface of the solar cell string 56 is laminated and sealed. Note that the lead portion 41b is bent at a predetermined angle (vertical direction in the embodiment) with respect to the surface of the solar cell string 56 at this time, but in FIG. 5, the final shape is the same as in FIGS. 3 and 4. In FIG. Moreover, the structure of the sealing member 64 and the back surface sheet 65 is the same as the structure of the sealing member 164 and the back surface sheet 165 demonstrated by the prior art.

  As shown in FIG. 6, the lead hole 41 and the lead portion 41 b inserted through the slit hole 66 have the sealing insulating film 64 and the back sheet 65 laminated and sealed on the entire surface of the solar cell string 56, and then the back sheet 65. Is bent outward (to the end portion side of the light-transmitting substrate 51) so as to be attached to the surface.

  In this state, as shown in FIG. 5 and FIG. 7, conductive end face seals for individually sealing the both end faces of the solar cell module 20 in contact with the respective lead portions 41 b exposed from the back sheet 65. Each member 45 is arranged.

  The end face seal member 45 is formed by applying a resin adhesive material obtained by mixing nickel powder or copper powder to a copper foil or aluminum foil base material. With such a configuration, the end surface sealing member 45 can be arranged while being bent so as to be closely adhered to the lead portion 41b and the end surface of the solar cell module 20.

  That is, as shown in FIG. 5, the end face seal member 45 is a rectangular sheet member formed to have a length extending over the entire length of the translucent substrate 51 and includes an exposed lead portion 41 b. A back sheet side adhesive piece 45a that is bonded over the entire length of the edge of the back sheet 65 is provided. Then, after this back sheet-side adhesive piece 45a is bonded and fixed to the edge of the back sheet 65 including the lead portion 41b, the remaining end surface seal members 45 protruding laterally from the back sheet 65 are sequentially bent. Thus, the end face of the solar cell module 20 is sealed. However, FIG. 5 shows the state after bending.

  That is, as shown in FIGS. 5 and 7, the end surface sealing member 45 protruding from the back sheet side adhesive piece 45a is bent so as to rise vertically along the end surface 56a of the solar cell string 56, and this first vertical The bent piece 45 b is bonded and fixed to the end surface 56 a of the solar cell string 56. Next, the first vertical bent piece 45 b is bent horizontally outward from the upper end portion, and the first horizontal bent piece 45 c is bonded and fixed to the lower surface edge of the translucent substrate 51. Next, the first horizontal bent piece 45c is bent so as to rise vertically along the end surface 51a of the translucent substrate 51, and the second vertical bent piece 45d is bent to the end surface 51a of the translucent substrate 51. Adhere to and fix. Finally, the second vertical bent piece 45d is bent horizontally from the upper end of the second vertical bent piece 45d along the upper surface edge of the translucent substrate 51, and the second horizontal bent piece 45e is formed on the upper surface edge of the translucent substrate 51. Adhere and fix.

  In this way, the end surface sealing member 45 is sequentially bent and provided so as to seal from the end surface of the solar cell module 20 to the upper surface edge portion, whereby the end surface of the solar cell module 20 can be reliably sealed, and thereafter When the solar cell module 20 is fixed by the fixing member 15, the contact area between the fixing member 15 and the end face seal member 45 can be reliably ensured. Therefore, by using this end surface sealing member 45, electrical connection with the lead member 41 and end surface sealing of the solar cell module 20 can be reliably performed. Note that the other end surface of the solar cell module 20 that is not sealed by the end surface seal member 45 may be waterproofed by a conventional method using ept sealer, butyl rubber, or the like.

  In this state, as shown in FIGS. 1 and 2, both end portions 20 a of the solar cell module 20 provided with the end surface sealing member 45 are supported by the storage main body portion 11 of the housing 10 by the conductive fixing members 15, respectively. It is fixed.

  That is, the fixing member 15 is formed to have a length that extends over the entire length of the translucent substrate 51 in the longitudinal direction, and contacts the second horizontal bent piece 45e of the end surface seal member 45 that is the upper surface edge of the translucent substrate 51. A first horizontal piece 15a that is in contact with each other, a vertical piece 15b that is continuous from the first horizontal piece 15a and contacts the end surface of the translucent substrate 51, that is, the second vertical bent piece 45d of the end surface sealing member 45, and the vertical piece 15b. The second horizontal piece 15c is continuous with the lower end edge of the housing 10 and is fixed in contact with the bottom surface 11a of the storage body 11 of the housing 10.

  By configuring the fixing member 15 in this way, the first horizontal piece 15a of the fixing member 15 and the second horizontal bent piece 45e of the end surface sealing member 45 can be reliably brought into close contact with each other. Furthermore, since the vertical piece 15b of the fixing member 15 can be brought into close contact with the second vertical bent piece 45d of the end face seal member 45, the electric power can be taken out in an electrically stable manner.

  Further, the second horizontal piece 15c of the fixing member 15 is fixed to the bottom surface 11a of the housing portion main body 11 of the housing 10 by a screw 16, and a conductive washer 17 is fitted into the screw 16. One end 18a of the output cable 18 is electrically connected and fixed to the washer 17 by soldering or the like in addition to a mechanical connection structure by caulking or the like. Further, the other end 18 b of the output cable 18 has a configuration led out to the outside from an opening hole 11 b formed in the bottom surface 11 a of the housing body 11 of the housing 10. In addition, in order to protect the output cable 18, the grommet 19 grade | etc., Is attached to the opening hole 11b.

  Since the solar cell module 20 of the present embodiment has such a configuration, the solar cell module 20 is fixed within the housing 10 and the output cable 18 is electrically connected and fixed only by using the fixing member 15. And can be done. That is, it is possible to simultaneously fix the electrical connection of the output cable 18 by simply fixing the solar cell module 20 in the housing 10 using the fixing member 15.

  Further, according to the solar cell module 20 of the present embodiment, since there is no lead wire in the electrode portion of the solar cell module 20 (that is, the conductive lead member 41 and the end face seal member 45 are provided instead of the lead wire). Therefore, there is no problem with the tensile strength of the lead wire. Therefore, since the edge cover and the fixing member as in the solar cell module described in Patent Document 1 are not necessary, the casing 10 can be made thinner accordingly, and as a result, the solar cell module assembly 1 itself is made thinner. Can be

  FIG. 8 is a schematic cross-sectional view showing another configuration example of the solar cell module assembly 1.

  If the end face seal member 45 is waterproof, it can have the same end face sealing function as the conventional one, but if the end face seal member 45 is not waterproof, it is housed in the housing 10. That said, it is better to have a waterproof structure. Therefore, in the configuration example shown in FIG. 8, the entire conductive portion including the lead member 41, the end surface seal member 45, and the fixing member 15, or the entire solar cell module 20 including the conductive portion is resinized in the housing 10. 13 is sealed. As the sealing resin 13, various resins such as silicone, acrylic, epoxy, and polyimide can be used, but in this embodiment, a silicone potting material is used.

  Thus, by sealing the entire conductive part or the entire solar cell module 20 including the conductive part in the housing 10, a more reliable waterproof structure can be obtained. As a result, when the solar cell module assembly 1 of the present invention is mounted on a vehicle that is a moving body, even if water enters the casing 10 due to long-term use due to direct exposure to wind and rain etc., the conductive portion is surely In addition, since it is sealed with the resin 13, the solar cell module 20 is not damaged due to a short circuit.

DESCRIPTION OF SYMBOLS 1 Solar cell module assembly 10 Housing | casing 11 Storage main-body part 11a Bottom face 11b Opening part 12 Cover part 13 Resin (sealing resin)
DESCRIPTION OF SYMBOLS 15 Fixing member 15a 1st horizontal piece 15b Vertical piece 15c 2nd horizontal piece 16 Screw 17 Washer 18 Output cable 18a One end part 18b Other end part 19 Grommet 20 Solar cell module 20a End part 41 Lead member 41a Current collecting part 41b Lead part 45 End face seal member 45a Back sheet side adhesive piece 45b First vertical bent piece 45c First horizontal bent piece 45d Second vertical bent piece 45e Second horizontal bent piece 51 Translucent substrate (translucent glass substrate)
55 Solar cell 56 Solar cell string 57 P-type electrode terminal part 58 N-type electrode terminal part 59 Insulating film (insulating film)
60 positive electrode current collector 61 negative electrode current collector 62 positive electrode lead wire 63 negative electrode lead wire 62a, 63a output lead portion 64 sealing member (sealing insulating film)
65 Back sheet 66, 67 Slit hole

Claims (10)

A solar cell module assembly in which a solar cell module is housed in a housing,
A conductive lead member connected to the electrode terminal portion of the electrode film of the solar battery cell and led out from the back sheet of the solar battery module;
A conductive end surface sealing member that contacts the lead member and seals the end surface of the solar cell module;
A conductive fixing member that contacts the end face seal member and fixes the end of the solar cell module to the housing;
An output cable for taking out electric power is connected to the fixing member. The solar cell module assembly according to claim 1,
One end part of the output cable is connected to the fixing member, and the other end part is led out through an opening hole formed in the casing. The solar cell module assembly according to claim 1 or 2,
The said lead member is provided so that the whole said electrode terminal part may be covered, The solar cell module assembly characterized by the above-mentioned. The solar cell module assembly according to any one of claims 1 to 3, wherein
The said lead member is formed with silver foil or copper foil, The solar cell module assembly characterized by the above-mentioned. The solar cell module assembly according to any one of claims 1 to 4, wherein
The end face sealing member is a solar cell module assembly in which a resin adhesive material in which nickel powder or copper powder is mixed is applied to a copper foil or aluminum foil base material. The solar cell module assembly according to any one of claims 1 to 5,
The said end surface sealing member is provided so that it may seal from the end surface of the said solar cell module to an upper surface edge part, The solar cell module assembly characterized by the above-mentioned. The solar cell module assembly according to claim 6,
The fixing member includes a first horizontal piece that comes into contact with an end face seal member at an upper edge of the solar cell module, and a vertical piece that is continuous from the first horizontal piece and comes into contact with an end face seal member at the end face of the solar cell module. And a second horizontal piece continuous from the vertical piece and fixed in contact with the bottom surface of the housing. The solar cell module assembly according to claim 7,
The second horizontal piece of the fixing member is fixed to the bottom surface of the housing by screwing, and a conductive washer is fitted into the screw, and one end of the output cable is connected and fixed to the washer. A solar cell module assembly characterized by comprising: The solar cell module assembly according to any one of claims 1 to 8,
The entire conductive part including the lead member, the end face seal member, and the fixing member, or the entire solar cell module including the conductive part is resin-sealed in the housing. Assembly.   A mobile body comprising the solar cell module assembly according to any one of claims 1 to 8.

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