Patent Publication Number: US-2010116330-A1

Title: Solar cell module, solar cell wiring member, and method of manufacturing solar cell module

Description:
TECHNICAL FIELD 
     The present invention relates to a solar cell module in which conductor wires formed in a wiring sheet are connected to the electrodes of a unit solar cell to provide electricity, a solar cell wiring member applied to such a solar cell module, and a method of manufacturing such a solar cell module. 
     BACKGROUND ART 
     The technical development of solar photovoltaic power generation systems, which generate electric energy directly from the sun&#39;s rays through solar cells, has proceeded rapidly in recent years, and there are technical prospects for use as a practical power generation method. As a result, solar photovoltaic power generation systems are expected to become a major clean energy technology capable of protecting the global environment in the 21st century from environmental contamination due to the combustion of fossil fuels, in the future. 
     Various forms of solar cells are being developed and, among them, a solar cell that uses a group-IV semiconductor in a photoelectric conversion active layer is currently closest to practical use because low-cost production is possible, and a thin film solar cell in which a thin film semiconductor is formed on an insulating substrate is the one that consumes the least amount of semiconductor material. 
     Ordinarily, a thin film solar cell has two types of structures: a structure in which on a transparent conductive film, such as SnO 2  (stannic oxide) or ITO (indium tin oxide), formed on a light-transmitting insulating substrate such as glass, a p layer, an i layer and an n layer of amorphous semiconductor are laminated in this order, forming a photoelectric conversion active layer, and a metal thin film electrode is laminated thereon; and a structure in which a p layer, an i layer and an n layer of amorphous semiconductor are laminated on a metal substrate electrode in this order, forming a photoelectric conversion active layer, and a transparent conductive film is laminated thereon. 
     Of these types, the former method of sequentially laminating a p layer, an i layer and an n layer is widely used and currently the dominant method because the light-transmitting insulating substrate can also serve as a solar cell surface cover glass and the development of a plasma-resistant transparent conductive film, such as SnO 2 , has made it possible to laminate a photoelectric conversion active layer of amorphous semiconductor onto the plasma-resistant transparent conductive film by a plasma CVD method. Amorphous semiconductor layers used for such solar cells are formed by a plasma CVD method through the glow discharge decomposition of a raw material gas or by photochemical vapor deposition (photo CVD method), and these methods are advantageous in that it is possible to form large-area thin films. 
     Ordinarily, in order to achieve a large area, a method is used in which components are integrated and connected in series using a laser. In this structure, a transparent conductive film is formed on a light-transmitting insulating substrate, such as a glass substrate, in the form of strips, and an amorphous semiconductor layer and a back surface electrode are sequentially laminated thereon. Then, a pattern for the two electrodes and the amorphous semiconductor layer is formed so as to achieve a structure in which the transparent conductive film of a unit solar cell composed of a transparent conductive film, an amorphous semiconductor layer and a back surface electrode contacts the back surface electrode of an adjacent unit solar cell. A flat p-i-n layer type thin film solar cell as configured above is conventionally known (see for example, Patent Document 1). 
     According to conventional technology, as wiring for providing electricity from the electrodes of a solar cell (unit solar cell) that are formed on a large area substrate, a plurality of wires (electric wires) composed of copper wires coated with an insulating coating are used, and the wires are connected to the electrodes by soldering. 
     [Patent Document 1] JP H8-83922A 
     DISCLOSURE OF INVENTION 
     Problems to be Solved by the Invention 
     As described above, according to conventional technology, separate wires are used as the electric wires for providing electricity from a unit solar cell, and the wires are separately positioned to the electrodes of the unit solar cell and then connected by soldering. Accordingly, conventional technology has problems such as poor positional accuracy, and poor productivity due to a large number of process steps. 
     The present invention has been conceived under such circumstances, and it is an object of the present invention to provide a highly reliable solar cell module, with which the positional accuracy when connecting a solar cell wiring member as an electric wire for providing electricity to the outside to the electrodes of a unit solar cell is improved, enhancing productivity, by configuring the solar cell module using a solar cell wiring member including, as electric wires for a unit solar cell including a first electrode and a second electrode on a non-light-receiving face, a first conductor wire connected to the first electrode, a second conductor wire connected to the second electrode, and a wiring sheet in which the first conductor wire and the second conductor wire are formed. 
     It is another object of the present invention to provide a solar cell wiring member that is provided with a first conductor wire including a first electrode connecting portion connected to a first electrode and a first lead-out portion connected to the outside via a first through portion formed through a wiring sheet; a second conductor wire including a second electrode connecting portion connected to a second electrode and a second lead-out portion connected to the outside via a second through portion formed through the wiring sheet; and the wiring sheet in which the first conductor wire and the second conductor wire are formed, with which it is possible to define the positioning between the first electrode and the first electrode connecting portion as well as the positioning between the second electrode and the second electrode connecting portion with ease and high accuracy and connect them with good productivity, and to manufacture a highly reliable solar cell module with superior productivity. 
     It is another object of the present invention to provide a method of manufacturing a solar cell module that involves: a preparation step of preparing a unit solar cell including a first electrode and a second electrode on a non-light-receiving face; a wiring member connecting step of positioning and disposing a solar cell wiring member on the first electrode and the second electrode and connecting a first electrode connecting portion of a first conductor wire to the first electrode and a second electrode connecting portion of a second conductor wire to the second electrode with a conductive adhesive; a sealing resin sheet disposing step of disposing a sealing resin sheet so as to overlap the non-light-receiving face and the solar cell wiring member; and a resin sealing step of heating and pressing the sealing resin sheet to resin-seal the unit solar cell, with which it is possible to position the first conductor wire to the first electrode and position the second conductor wire to the second electrode with ease and high accuracy, and productivity is improved by using a conductive adhesive to connect the first conductor wire to the first electrode and the second conductor wire to the second electrode. 
     It is another object of the present invention to provide a highly reliable solar cell module, with which the positional accuracy when connecting a solar cell wiring member as an electric wire for providing electricity to the outside to the electrodes of a unit solar cell is improved, enhancing productivity, by configuring the solar cell module using a solar cell wiring member including, as electric wires for a unit solar cell including a first electrode and a second electrode on a non-light-receiving face, a first conductor wire connected to the first electrode, a second conductor wire connected to the second electrode, and an insulating sheet in which the first conductor wire and the second conductor wire are fixed. 
     It is another object of the present invention to provide a solar cell wiring member that is provided with a first conductor wire connected to a first electrode, a second conductor wire connected to a second electrode, and an insulating sheet in which the first conductor wire and the second conductor wire are fixed, with which it is possible to define the positioning between the first electrode and the first conductor wire as well as the positioning between the second electrode and the second conductor wire with ease and high accuracy and connect them with good productivity, and to manufacture a highly reliable solar cell module with superior productivity. 
     Means for Solving the Problems 
     A solar cell module of the present invention is a solar cell module including: a unit solar cell in which a first electrode of a first polarity and a second electrode of a second polarity are formed in a non-light-receiving face; a solar cell wiring member that is disposed facing the non-light-receiving face and that provides electricity to the outside; and a sealing resin sheet that is laminated on the unit solar cell and the solar cell wiring member and that resin-seals the unit solar cell, wherein the solar cell wiring member comprises a first conductor wire connected to the first electrode, a second conductor wire connected to the second electrode, and a wiring sheet in which the first conductor wire and the second conductor wire are formed, the first conductor wire includes a first electrode connecting portion connected to the first electrode and a first lead-out portion that is connected to the outside via a first through portion formed through the wiring sheet, the second conductor wire includes a second electrode connecting portion connected to the second electrode and a second lead-out portion that is connected to the outside via a second through portion formed through the wiring sheet, and an insulating sheet that covers the first conductor wire and the second conductor wire to insulate the first conductor wire and the second conductor wire is disposed between the non-light-receiving face and the wiring sheet. 
     With this configuration, it becomes possible to integrally fix the positions of the first electrode connecting portion, the first lead-out portion, the second electrode connecting portion and the second lead-out portion by the wiring sheet and, as such, the positioning between the first electrode and the first electrode connecting portion as well as the positioning between the second electrode and the second electrode connecting portion can be defined with ease and high accuracy so that they can be connected with good productivity. Accordingly, it is possible to obtain a highly reliable solar cell module with superior productivity. In addition, the positioning of the first and second lead-out portions to the outside can be defined with ease and high accuracy. That is, it is possible to provide wiring that can be easily incorporated into the solar cell wiring member and has high positional accuracy. 
     Also, in the solar cell module of the present invention, the first electrode and the first electrode connecting portion as well as the second electrode and the second electrode connecting portion are connected with a conductive adhesive. 
     With this configuration, the conductive adhesive used to connect the first electrode connecting portion to the first electrode and the second electrode connecting portion to the second electrode can be cured concurrently when the sealing resin sheet is heated and pressed to firmly attach it to the unit solar cell, so it becomes possible to easily perform manufacturing at a low temperature. Accordingly, it is possible to obtain a highly productive solar cell module in a shortened connection time. 
     Also, in the solar cell module of the present invention, the insulating sheet is formed so as to cause the first electrode connecting portion to correspond to the first electrode and the second electrode connecting portion to correspond to the second electrode, and is deposited on the wiring sheet. 
     With this configuration, it becomes possible to insulate the first conductor wire and the second conductor wire in advance. Accordingly, when disposing the wiring sheet facing the unit solar cell, the need for an extra task of inserting an insulating sheet that is necessary between the first and second conductor wires and the unit solar cell is eliminated, simplifying the manufacturing process and, as a result, improving productivity. 
     Also, in the solar cell module of the present invention, the unit solar cell is a thin film solar cell. 
     With this configuration, it becomes possible to obtain a highly productive and inexpensive solar cell module. 
     A solar cell wiring member according to the present invention is a solar cell wiring member including: a first conductor wire that is connected to a first electrode of a first polarity formed in a non-light-receiving face of a unit solar cell; a second conductor wire that is connected to a second electrode of a second polarity formed in the non-light-receiving face of the unit solar cell; and a wiring sheet in which the first conductor wire and the second conductor wire are formed, the solar cell wiring member being disposed facing the non-light-receiving face of the unit solar cell and providing electricity to the outside, wherein the first conductor wire includes a first electrode connecting portion that is connected to the first electrode and a first lead-out portion that is connected to the outside via a first through portion formed through the wiring sheet, and the second conductor wire includes a second electrode connecting portion that is connected to the second electrode and a second lead-out portion connected to the outside via a second through portion formed through the wiring sheet. 
     With this configuration, it becomes possible to integrally fix the positions of the first electrode connecting portion, the first lead-out portion, the second electrode connecting portion and the second lead-out portion by using the wiring sheet and, as such, the positioning of the first electrode connecting portion to the first electrode as well as the positioning of the second electrode connecting portion to the second electrode can be defined with ease and high accuracy so that they can be connected with good productivity. Accordingly, it is possible to obtain a highly reliable solar cell module with superior productivity. In addition, the positioning of the first and second lead-out portions to the outside can be defined with ease and high accuracy, so the productivity of the solar cell module can be improved. 
     Also, in the solar cell wiring member of the present invention, an insulating sheet that is formed so as to cause the first electrode connecting portion to correspond to the first electrode and the second electrode connecting portion to correspond to the second electrode and that covers the first conductor wire and the second conductor wire to insulate the first conductor wire and the second conductor wire is deposited on the wiring sheet. 
     With this configuration, it becomes possible to insulate the first conductor wire and the second conductor wire in advance. Accordingly, when disposing the wiring sheet facing the unit solar cell, the need for an extra step of inserting an insulating sheet that is necessary between the first and second conductor wires and the unit solar cell is eliminated, simplifying the manufacturing process and, as a result, improving productivity. 
     Also, in the solar cell wiring member of the present invention, the first conductor wire and the second conductor wire are formed of a thin plate-like metal conductor. 
     With this configuration, it becomes possible to form the first conductor wire and the second conductor wire with ease, so a solar cell wiring member can be obtained with good productivity. 
     Also, in the solar cell wiring member of the present invention, the first conductor wire and the second conductor wire are formed of an aggregate of conductor particles. 
     With this configuration, it becomes possible to form the first conductor wire and the second conductor wire with ease, so a solar cell wiring member can be obtained with good productivity. 
     A method of manufacturing a solar cell module according to the present invention is a method of manufacturing a solar cell module including: a unit solar cell in which a first electrode of a first polarity and a second electrode of a second polarity are formed in a non-light-receiving face; a solar cell wiring member including a first conductor wire connected to the first electrode, a second conductor wire connected to the second electrode, and a wiring sheet in which the first conductor wire and the second conductor wire are formed, the solar cell wiring member that is disposed facing the non-light-receiving face and that provides electricity to the outside; and a sealing resin sheet that is laminated on the unit solar cell and the solar cell wiring member and that resin-seals the unit solar cell, the method including: a cell preparation step of preparing the unit solar cell; a wiring member connecting step of positioning and disposing the solar cell wiring member on the first electrode and the second electrode and connecting a first electrode connecting portion of the first conductor wire to the first electrode and a second electrode connecting portion of the second conductor wire to the second electrode with a conductive adhesive; a sealing resin sheet disposing step of disposing the sealing resin sheet so as to overlap the non-light-receiving face and the solar cell wiring member; and a resin sealing step of heating and pressing the sealing resin sheet to resin-seal the unit solar cell. 
     With this configuration, it becomes possible to position the first conductor wire to the first electrode and position the second conductor wire to the second electrode with ease and high accuracy. In addition, because a conductive adhesive is used to connect them, the productivity of the solar cell module can be improved. 
     Also, in the method of manufacturing a solar cell module of the present invention, the conductive adhesive has a melting point lower than the melting point of the sealing resin sheet. 
     With this configuration, it becomes possible to cure the conductive adhesive concurrently with the resin-sealing of the sealing resin sheet in the resin sealing step. Accordingly, a highly productive manufacturing method of a solar cell module with simplified process steps can be obtained. 
     Also, in the method of manufacturing a solar cell module of the present invention, an insulating sheet that covers the first conductor wire and the second conductor wire to insulate the first conductor wire and the second conductor wire is deposited on the wiring sheet in advance. 
     With this configuration, it becomes possible to simplify the process steps and position the solar cell wiring member with ease. 
     A solar cell module according to the present invention is a solar cell module including: a unit solar cell in which a first electrode of a first polarity and a second electrode of a second polarity are formed in a non-light-receiving face; a solar cell wiring member that is disposed facing the non-light-receiving face and that provides electricity to the outside; and a sealing resin sheet that is laminated on the unit solar cell and the solar cell wiring member and that resin-seals the unit solar cell, wherein the solar cell wiring member comprises a first conductor wire connected to the first electrode, a second conductor wire connected to the second electrode, and an insulating sheet in which the first conductor wire and the second conductor wire are fixed; and is configured to provide electricity to the outside by the first conductor wire and the second conductor wire. 
     With this configuration, the positions of the first conductor wire and the second conductor wire are integrally fixed by the insulating sheet and, as such, the positioning of the first conductor wire to the first electrode as well as the positioning of the second conductor wire to the second electrode can be defined with ease and high accuracy so that they can be connected with good productivity. Accordingly, a highly reliable solar cell module can be obtained with superior productivity. That is, it is possible to provide wiring that can be easily incorporated into the solar cell wiring member and has high positional accuracy. 
     In addition, because the first conductor wire and the second conductor wire are fixed to the insulating sheet, the first conductor wire and the second conductor wire can be insulated in advance, so the need for an extra task of inserting an insulating sheet between the first and second conductor wires and the unit solar cell can be eliminated, and the manufacturing process can be simplified, improving productivity. 
     A solar cell wiring member according to the present invention is a solar cell wiring member including: a first conductor wire that is connected to a first electrode of a first polarity formed in a non-light-receiving face of a unit solar cell; a second conductor wire that is connected to a second electrode of a second polarity formed in the non-light-receiving face of the unit solar cell; and an insulating sheet in which the first conductor wire and the second conductor wire are fixed, the solar cell wiring member being disposed facing the non-light-receiving face of the unit solar cell and being configured to provide electricity to the outside by the first conductor wire and the second conductor wire. 
     With this configuration, the positions of the first conductor wire and the second conductor wire can be fixed by the insulating sheet, so it becomes possible to define the positioning of the first conductor wire to the first electrode and the positioning of the second conductor wire to the second electrode with ease and high accuracy and connect them with good productivity. Accordingly, it is possible to manufacture a highly reliable solar cell module with superior productivity. Furthermore, the first and second conductor wires can be positioned to the outside with ease and high accuracy, so the productivity of the solar cell module can be improved. 
     In addition, because the first conductor wire and the second conductor wire are fixed to the insulating sheet, the first conductor wire and the second conductor wire can be insulated in advance, so the need for an extra task of inserting an insulating sheet between the first and second conductor wires and the unit solar cell can be eliminated, and the manufacturing process can be simplified, improving productivity. 
     A method of manufacturing a solar cell module according to the present invention is a method of manufacturing a solar cell module including: a unit solar cell in which a first electrode of a first polarity and a second electrode of a second polarity are formed in a non-light-receiving face; a solar cell wiring member including a first conductor wire connected to the first electrode, a second conductor wire connected to the second electrode, and an insulating sheet in which the first conductor wire and the second conductor wire are fixed, the solar cell wiring member being disposed facing the non-light-receiving face and providing electricity to the outside; and a sealing resin sheet being laminated on the unit solar cell and the solar cell wiring member and resin-sealing the unit solar cell, the method including: a cell preparation step of preparing the unit solar cell; a wiring member connecting step of positioning and disposing the solar cell wiring member on the first electrode and the second electrode and connecting a first electrode connecting portion of the first conductor wire to the first electrode and a second electrode connecting portion of the second conductor wire to the second electrode; a sealing resin sheet disposing step of disposing the sealing resin sheet so as to overlap the non-light-receiving face and the solar cell wiring member; and a resin sealing step of heating and pressing the sealing resin sheet to resin-seal the unit solar cell. 
     With this configuration, it becomes possible to position the first conductor wire to the first electrode and position the second conductor wire to the second electrode with ease and high accuracy. In addition, by using a conductive adhesive to connect the first electrode connecting portion to the first electrode and the second electrode connecting portion to the second electrode, the productivity of the solar cell module can be improved. 
     Furthermore, it becomes possible to simplify the process steps and position the solar cell wiring member with ease. 
     EFFECTS OF THE INVENTION 
     In accordance with the solar cell module of the present invention, the solar cell wiring member that is disposed facing a non-light-receiving face of a unit solar cell in which a first electrode and a second electrode are formed and that provides electricity to the outside is provided with: a first conductor wire including a first electrode connecting portion connected to the first electrode and a first lead-out portion connected to the outside via a first through portion formed through a wiring sheet; a second conductor wire including a second electrode connecting portion connected to the second electrode and a second lead-out portion connected to the outside via a second through portion formed through the wiring sheet; and the wiring sheet in which the first conductor wire and the second conductor wire are formed, as a result of which the following effects can be achieved: the positions of the first electrode connecting portion, the first lead-out portion, the second electrode connecting portion and the second lead-out portion can be fixed by the wiring sheet, which makes it possible to define the positioning between the first electrode and the first electrode connecting portion and the positioning between the second electrode and the second electrode connecting portion with ease and high accuracy and connect them with good productivity, and also makes it possible to provide a highly reliable solar cell module with superior productivity. 
     In accordance with the solar cell wiring member of the present invention, a first conductor wire including a first electrode connecting portion connected to a first electrode and a first lead-out portion connected to the outside via a first through portion formed through a wiring sheet, a second conductor wire including a second electrode connecting portion connected to a second electrode and a second lead-out portion connected to the outside via a second through portion formed through the wiring sheet, and the wiring sheet in which the first conductor wire and the second conductor wire are formed are provided, as a result of which the following effects can be achieved: the positions of the first electrode connecting portion, the first lead-out portion, the second electrode connecting portion and the second lead-out portion can be fixed by the wiring sheet, which makes it possible to define the positioning of the first electrode connecting portion to the first electrode as well as the positioning of the second electrode connecting portion to the second electrode with ease and high accuracy and connect them with good productivity. That is, a highly reliable solar cell module can be manufactured with superior productivity. 
     In accordance with the method of manufacturing a solar cell module of the present invention, a cell preparation step of preparing a unit solar cell in which a first electrode and a second electrode are formed in a non-light-receiving face; a wiring member connecting step of positioning and disposing a solar cell wiring member on the first electrode and the second electrode and connecting a first electrode connecting portion of a first conductor wire to the first electrode and a second electrode connecting portion of a second conductor wire to the second electrode with a conductive adhesive; a sealing resin sheet disposing step of disposing a sealing resin sheet so as to overlap the non-light-receiving face and the solar cell wiring member; and a resin sealing step of heating and pressing the sealing resin sheet to resin-seal the unit solar cell are involved; as a result of which, the following effects can be achieved: the positioning of the first conductor wire to the first electrode as well as the positioning of the second conductor wire to the second electrode can be performed with ease and high accuracy. Also, a conductive adhesive is used to connect them, so the effect of improving the productivity of the solar cell module can be obtained. 
     In accordance with the solar cell module of the present invention, the solar cell wiring member that is disposed facing a non-light-receiving face of a unit solar cell in which a first electrode and a second electrode are formed and that provides electricity to the outside is provided with: a first conductor wire connected to the first electrode, a second conductor wire connected to the second electrode, and an insulating sheet in which the first conductor wire and the second conductor wire are fixed, as a result of which, the positions of the first conductor wire and the second conductor wire can be fixed by the insulating sheet, so the following effects can be achieved: the positioning between the first electrode and the first conductor wire and the positioning between the second electrode and the second conductor wire can be performed with ease and high accuracy so that they can be connected with good productivity, and a highly reliable solar cell module can be provided with superior productivity. 
     In accordance with the solar cell wiring member of the present invention, a first conductor wire connected to a first electrode of a first polarity formed in a non-light-receiving face of a unit solar cell, a second conductor wire connected to a second electrode of a second polarity formed in the non-light-receiving face of the unit solar cell, and an insulating sheet in which the first conductor wire and the second conductor wire are fixed are provided, as a result of which the positions of the first conductor wire and the second conductor wire are fixed by the insulating sheet, so the following effects can be achieved: the positioning of the first conductor wire to the first electrode as well as the positioning of the second conductor wire to the second electrode can be performed with ease and high accuracy so that they can be connected with good productivity. That is, a highly reliable solar cell module can be manufactured with superior productivity. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is an exploded perspective view showing an overall configuration of a solar cell wiring member according to Embodiment 1 of the present invention. 
         FIG. 2  is a perspective view showing the outer appearance of the solar cell wiring member shown in  FIG. 1  in its completed state. 
         FIG. 3  is an exploded perspective view showing an overall configuration of a solar cell module used to illustrate a solar cell module and a method of manufacturing a solar cell module according to Embodiment 2 of the present invention. 
         FIG. 4  is an exploded perspective view showing the relationship between a unit solar cell and a solar cell wiring member that are applied to a solar cell module according to Embodiment 3 of the present invention. 
         FIG. 5  is a perspective view showing a state in which the unit solar cell and the solar cell wiring member shown in  FIG. 4  are laminated and connected. 
         FIG. 6  is a perspective view showing the outer appearance of a solar cell wiring member according to Embodiment 4 of the present invention in its completed state. 
         FIG. 7  is an exploded perspective view showing an overall configuration of a solar cell module used to illustrate a solar cell module and a method of manufacturing a solar cell module according to Embodiment 4 of the present invention. 
     
    
    
     DESCRIPTION OF REFERENCE NUMERALS 
     
         
         
           
               1 ,  1   a  Solar Cell Wiring Member 
               2  Unit Solar Cell 
               3  Solar Cell Module 
               10  Wiring Sheet 
               10   h ,  13   h  Fixing Hole (Anchor Hole) 
               11  First Conductor Wire 
               11   c  First Electrode Connecting Portion 
               11   h  First Through Portion 
               11   t  First Lead-Out Portion 
               12  Second Conductor Wire 
               12   c  Second Electrode Connecting Portion 
               12   h  Second Through Portion 
               12   t  Second Lead-Out Portion 
               13  Insulating Sheet 
               13   k  Cut-Out Portion 
               14  Auxiliary Fixing Tape 
               20  Photoelectric Conversion Portion 
               21  First Electrode 
               22  Second Electrode 
               31  Light-Transmitting Protection Plate 
               32  Sealing Resin Sheet 
               33  Sealing Resin Sheet 
               33   h  Terminal Hole 
               34  Exterior Sheet 
               34   h  Terminal Hole 
               35  Terminal Box 
               36  Output Lead Wire 
               37  Frame Member 
           
         
       
    
     BEST MODE FOR CARRYING OUT THE INVENTION 
     Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 
     Embodiment 1 
     A solar cell wiring member according to Embodiment 1 of the present invention will be described with reference to  FIGS. 1 and 2 . 
       FIG. 1  is an exploded perspective view showing an overall configuration of a solar cell wiring member according to Embodiment 1 of the present invention.  FIG. 2  is a perspective view showing the outer appearance of the solar cell wiring member shown in  FIG. 1  in its completed state. 
     A solar cell wiring member  1  according to the present embodiment is provided with a first conductor wire  11  that is connected to a first electrode  21  of a first polarity (e.g., p-electrode) formed on a non-light-receiving face of a unit solar cell  2  (see  FIG. 3 ), a second conductor wire  12  that is connected to a second electrode  22  of a second polarity (e.g., n-electrode) formed on the non-light-receiving face of the unit solar cell  2 , and a wiring sheet  10  in which the first conductor wire  11  and the second conductor wire  12  are formed; and is configured such that the first conductor wire  11  and the second conductor wire  12  are disposed facing the non-light-receiving face of the unit solar cell  2  to provide electricity to the outside. Herein, a plurality of first conductor wires  11  and a plurality of second conductor wires  12  are arranged according to the number of unit solar cells  2 . 
     The first conductor wire  11  includes a first electrode connecting portion  11   c  that is connected to the first electrode  21  and a first lead-out portion  11   t  that is connected to the outside via a first through portion  11   h  formed through the wiring sheet  10 . Likewise, the second conductor wire  12  includes a second electrode connecting portion  12   c  that is connected to the second electrode  22  and a second lead-out portion  12   t  that is connected to the outside via a second through portion  12   h  formed through the wiring sheet  10 . That is, the first conductor wire  11  and the second conductor wire  12  are formed so as to be disposed on one face of the wiring sheet  10  facing the non-light-receiving face of the unit solar cell  2 . 
     In the first lead-out portion  11   t  and the second lead-out portion  12   t , lead-out terminals may be configured using appropriate lead wires. It is desirable that the first through portion  11   h  and the second through portion  12   h  are aligned as appropriate. By aligning them, the connection of the first lead-out portions  11   t  and the second lead-out portions  12   t  to the outside can be achieved collectively and efficiently. 
     The connection between the first electrode connecting portion  11   c  and the first electrode  21  and the connection between the second electrode connecting portion  12   c  and the second electrode  22  are formed by disposing them so as to correspond to each other and bonding them with a conductive adhesive. By using a conductive adhesive, unlike conventional soldering, the processing time can be reduced. It also becomes possible to cure the conductive adhesive in a resin sealing step (see  FIG. 3 ) of resin-sealing the unit solar cell  2  by heating and pressing a sealing resin sheet  33 , so the productivity of solar cell module  3  (see  FIG. 3 ) can be improved. Accordingly, as the conductive adhesive, an adhesive_having a melting point lower than the temperature applied in the manufacturing process of the solar cell module  3  is used, and the conductive adhesive is configured to achieve reliable bonding by a heat history of, for example, approximately 100° C. that is applied in the manufacturing process of the solar cell module  3 . 
     Also, the first through portion  11   h  and the second through portion  12   h  can be configured of a through hole, a cutout or the like. With the first through portion  11   h  and the second through portion  12   h , the first lead-out portion  11   t  and the second lead-out portion  12   t  can be connected to the outside. 
     The wiring sheet  10  is a single sheet member in which the first conductor wire  11  and the second conductor wire  12  are integrally formed. Because the first conductor wire  11  and the second conductor wire  12  are integrated as a wiring member, the positioning of the first conductor wire  11  to the first electrode  21  and the positioning of the second conductor wire  12  to the second electrode  22  can be performed with ease and high accuracy, and the number of manufacturing steps can be reduced. 
     The wiring sheet  10  can be formed as a multilayer structure in which a plurality of layers are laminated. It is also possible to reduce the wiring pitch of the first conductor wire  11  and the second conductor wire  12 , so the necessary area for the solar cell wiring member  1  can be reduced. Accordingly, highly dense wiring and a more complicated wiring pattern can be formed. Also, a free wiring pattern can be formed, so the cost of components can be reduced, improving reliability. 
     It is desirable to use, as the wiring sheet  10 , a material having a glass transition point temperature and a melting point higher than those of other resin materials that constitute the solar cell module  3  in order to prevent the material from degradation due to thermal stress in the manufacturing process. For example, a PET (polyethylene terephthalate) film or the like can be used. 
     According to the present embodiment, because the positions of the first electrode connecting portion  11   c , the first lead-out portion  11   t , the second electrode connecting portion  12   c  and the second lead-out portion  12   t  can be fixed by the wiring sheet  10 , it becomes possible to define the positioning between the first electrode  21  and the first electrode connecting portion  11   c  and the positioning between the second electrode  22  and the second electrode connecting portion  12   c  with ease and high accuracy so that they can be connected with good productivity. Accordingly, a highly reliable solar cell module  3  can be manufactured with superior productivity (see  FIG. 3 ). 
     It also becomes possible to position the first lead-out portion  11   t  to the outside and the second lead-out portion  12   t  to the outside with ease and high accuracy, so the productivity of the solar cell module  3  can be improved. 
     It is desirable that the first conductor wire  11  and the second conductor wire  12  are formed of, for example, a metal conductor in the form of a thin plate. With this configuration, the first conductor wire  11  and the second conductor wire  12  can be formed easily, so a solar cell wiring member  1  can be obtained with good productivity. The first conductor wire  11  and the second conductor wire  12  can be formed by, for example, laminating a thin copper plate on the wiring sheet  10  with an adhesive, followed by pattern etching (printing technique). That is, an ordinary printed circuit board technique can be applied to form them. 
     The first conductor wire  11  and the second conductor wire  12  can also be formed of, for example, an aggregate of conductor particles instead of a thin plate-like metal conductor. With this configuration, the first conductor wire  11  and the second conductor wire  12  can be formed easily, so a solar cell wiring member  1  can be obtained with good productivity. The first conductor wire  11  and the second conductor wire  12  can be formed by, for example, forming an aggregate of conductor particles (various techniques can be used to form such an aggregate such as applying a conductive paste or forming a vapor deposition film using a metal vapor deposition source), followed by pattern etching (printing technique). In the case where the first conductor wire  11  and the second conductor wire  12  are formed of an aggregate of conductor particles, it is preferable to reinforce the first electrode connecting portion  11   c , the first lead-out portion  11   t , the second electrode connecting portion  12   c  and the second lead-out portion  12   t  with a thin plate-like metal conductor as appropriate. 
     When disposing the solar cell wiring member  1  on the non-light-receiving face of the unit solar cell  2  with the first conductor wire  11  and the second conductor wire  12  facing the non-light-receiving face, an insulating sheet  13  is interposed (disposed) therebetween in order to secure insulation between the unit solar cell  2  and the first and second conductor wires  11  and  12 . 
     It is desirable that the insulating sheet  13  is deposited on the wiring sheet  10  in advance. That is, an insulating sheet that is formed so as to cause the first electrode connecting portion  11   c  to correspond to the first electrode  21  and the second electrode connecting portion  12   c  to correspond to the second electrode  22 , and that covers the first conductor wire  11  and the second conductor wire  12  so as to insulate them is deposited (bonded, laminated) on the wiring sheet  10 . The insulating sheet  13  can be formed from, for example, a cut-out portion  13   k  formed in the position corresponding to the second electrode connecting portion  12   c.    
     With this configuration, the first conductor wire  11  and the second conductor wire  12  are insulated in advance. Accordingly, when disposing the wiring sheet facing the unit solar cell  2 , the need for an extra step of inserting an insulating sheet  13  that is necessary between the first and second conductor wires  11  and  12  and the unit solar cell  2  can be eliminated, so the manufacturing process can be simplified, improving productivity. 
     As is the case with the wiring sheet  10 , it is desirable to use, as the insulating sheet  13 , a material having a glass transition point temperature and a melting point higher than those of other resin materials that constitute the solar cell module  3  in order to prevent the material from degradation due to thermal stress in the manufacturing process. It is possible to use, for example, a PET film or the like, as is the case with the wiring sheet  10 . 
     The positioning and fixation of the wiring sheet  10  onto the solar cell module  3  (the positioning and fixation thereof to the unit solar cell  2 ) can be performed by providing fixing holes (anchor holes)  10   h  in the wiring sheet  10 , and filling the fixing holes  10   h  with a sealing resin supplied from the sealing resin sheet  33  in a resin sealing step of resin-sealing the unit solar cell  2  by heating and pressing the sealing resin sheet  33 . 
     In order to fix the wiring sheet  10  to the unit solar cell  2 , auxiliary fixing tape  14  can also be used to tape the wiring sheet  10  to the unit solar cell  2 . With this configuration, the position at which the first electrode connecting portion  11   c  and the first electrode  21  are connected as well as the position at which the second electrode connecting portion  12   c  and the second electrode  22  are connected can be fixed reliably, so they can be connected with high positional accuracy. 
     Embodiment 2 
       FIG. 3  is an exploded perspective view showing an overall configuration of a solar cell module used to illustrate a solar cell module and a method of manufacturing a solar cell module according to Embodiment 2 of the present invention. 
     Because the solar cell wiring member  1  was described in detail in Embodiment 1, ( FIG. 1 ,  FIG. 2 ), some parts of the solar cell wiring member  1  are omitted in  FIG. 3 . The relationship between the solar cell wiring member  1  and the unit solar cell  2  will be described in detail in Embodiment 3. 
     A solar cell module  3  of the present embodiment is provided with: a unit solar cell  2  in which a first electrode  21  of a first polarity and a second electrode  22  of a second polarity are formed on a non-light-receiving face; a solar cell wiring member  1  that is disposed facing the non-light-receiving face and that provides electricity to the outside; and a sealing resin sheet  33  that is laminated on the unit solar cell  2  and the solar cell wiring member  1  and that seals the unit solar cell  2  with resin. 
     The solar cell wiring member  1  is the same as described in Embodiment 1. That is, the solar cell wiring member  1  is provided with a first conductor wire  11  connected to a first electrode  21 , a second conductor wire  12  connected to a second electrode  22 , and a wiring sheet  10  in which the first conductor wire  11  and the second conductor wire  12  are formed, the first conductor wire  11  including a first electrode connecting portion  11   c  connected to a first electrode  21  and a first lead-out portion  11   t  connected to the outside via a first through portion  11   h  formed through the wiring sheet  10 , and the second conductor wire  12  including a second electrode connecting portion  12   c  connected to the second electrode  22  and a second lead-out portion  12   t  connected to the outside via a second through portion  12   h  formed through the wiring sheet  10 . An insulating sheet  13  that covers the first conductor wire  11  and the second conductor wire  12  to insulate them is disposed between the non-light-receiving face and the wiring sheet  10 . 
     Accordingly, in the solar cell module  3  of the present embodiment, the positions of the first electrode connecting portion  11   c , the first lead-out portion  11   t , the second electrode connecting portion  12   c  and the second lead-out portion  12   t  can be fixed using the wiring sheet  10 , so it becomes possible to define the positioning between the first electrode  21  and the first electrode connecting portion  11   c , and the positioning between the second electrode  22  and the second electrode connecting portion  12   c  with ease and high accuracy so that they can be connected with good productivity. Accordingly, it is possible to obtain a highly reliable solar cell module  3  with superior productivity. It also becomes possible to define the positioning between the first and second lead-out portions  11   t  and  12   t  and the outside with ease and high accuracy. 
     The first electrode  21  and the first electrode connecting portion  11   c , as well as the second electrode  22  and the second electrode connecting portion  12   c  are connected with a conductive adhesive. Because the conductive adhesive can be cured concurrently when the sealing resin sheet  33  is heated and pressed to firmly attach it to the unit solar cell  2 , it becomes possible to easily perform manufacturing at a low temperature. Accordingly, it is possible to obtain a highly productive solar cell module in which the connection can be completed in a short time. That is, by using a conductive adhesive to connect them, it becomes possible to avoid taking a long time, which is necessary when soldering is used. 
     Also, the insulating sheet  13  is formed so as to cause the first electrode connecting portion  11   c  to correspond to the first electrode  21  and the second electrode connecting portion  12   c  to correspond to the second electrode  22 , and is deposited on the wiring sheet  10  in advance. With this configuration, the first conductor wire  11  and the second conductor wire  12  are insulated in advance. Accordingly, when disposing the wiring sheet  10  facing the unit solar cell  2 , the need for an extra task of inserting an insulating sheet  13  that is necessary between the first and second conductor wires  11  and  12  and the unit solar cell  2  is eliminated, simplifying the manufacturing process, and the positioning of the solar cell wiring member  1  can be performed easily, improving productivity. 
     A method of manufacturing a solar cell module  3  will be described next. Here, a state before being completed is also referred to as solar cell module  3 . 
     First of all, a light-transmitting protection plate  31  is prepared (light-transmitting protection plate preparation step), and a sealing resin sheet  32  is disposed on the light-transmitting protection plate  31  (surface sealing resin preparation step). The light-transmitting protection plate  31  is made of, for example, glass, and the sealing resin sheet  32  is made of, for example, an EVA (ethylene/vinyl acetate copolymer) resin sheet. 
     A unit solar cell  2  is disposed on the sealing resin sheet  32 . That is, a unit solar cell  2  is prepared (cell preparation step). In the case of a structure in which a light-transmitting protection plate  31  and a unit solar cell  2  are integrated, understandably, the sealing resin sheet  32  can be omitted (in such a case, the light-transmitting protection plate preparation step and the cell preparation step can be combined into a cell preparation step). 
     On the unit solar cell  2 , an insulating sheet  13  formed so as to cause the first electrode connecting portion  11   c  to correspond to the first electrode  21  and the second electrode connecting portion  12   c  to correspond to the second electrode  22  is positioned to and disposed (placed) on the non-light-receiving face (insulating sheet disposing step). In the case where a wiring sheet  10  is configured by depositing an insulating sheet  13  on the wiring sheet  10  in advance, the insulating sheet disposing step can be omitted, so the manufacturing process can be simplified, improving productivity. 
     A solar cell wiring member  1  is positioned to and disposed (placed) on the first electrode  21  and the second electrode  22 , then, using a conductive adhesive, the first electrode connecting portion  11   c  of the first conductor wire  11  is connected to the first electrode  21 , and the second electrode connecting portion  12   c  of the second conductor wire  12  is connected to the second electrode  22  (wiring member connecting step). 
     The wiring sheet  10  has first through portions  11   h  and second through portions  12   h  formed therein and is configured such that the corresponding first lead-out portions  11   t  and second lead-out portions  12   t  are exposed at the back surface (outside) side. In order to facilitate the connection of the exposed first lead-out portions  11   t  and second lead-out portions  12   t  to the outside, it is desirable to provide appropriate lead-out terminals to the lead-out portions in advance (lead-out terminal forming step). 
     A sealing resin sheet  33  is positioned on and disposed (placed) overlapping the non-light-receiving face and the solar cell wiring member  1  (sealing resin sheet disposing step). The sealing resin sheet  33  can be, for example, an EVA (ethylene/vinyl acetate copolymer) resin sheet as is the case with the sealing resin sheet  32 . 
     In the sealing resin sheet  33 , terminal holes  33   h  for leading out lead-out terminals (first lead-out portions  11   t  and second lead-out portions  12   t ) are formed at prescribed positions in advance. Before the sealing resin sheet  33  is firmly attached to the unit solar cell  2 , it is desirable to fix the solar cell wiring member  1  with auxiliary fixing tape  14  in order to fix the position of the solar cell wiring member  1 . 
     An exterior sheet  34  is positioned on and disposed (placed) overlapping the sealing resin sheet  33  (exterior sheet disposing step). The exterior sheet  34  can be, for example, a laminate of a PET film and a moisture proof material (e.g., an aluminum foil) attached thereto. In the exterior sheet  34 , as in the sealing resin sheet  33 , terminal holes  34   h  for leading out lead-out terminals (first lead-out portions  11   t  and second lead-out portions  12   t ) are formed at prescribed positions in advance. 
     With the wiring sheet  10 , the sealing resin sheet  33  and the exterior sheet  34  being overlaid on the unit solar cell  2 , the sealing resin sheet  33  is heated and pressed under vacuum to firmly attach the sealing resin sheet  33  to the unit solar cell  2 , thereby sealing the unit solar cell  2  with resin (resin sealing step). By heating and pressing the sealing resin sheet  33  under vacuum, the occurrence of gaps between the unit solar cell  2 , the wiring sheet  10 , the sealing resin sheet  33  and the exterior sheet  34  can be prevented, and a highly reliable solar cell module  3  can be obtained. In the resin sealing step, the unit solar cell  2 , the wiring sheet  10 , the sealing resin sheet  33  and the exterior sheet  34  can be laminated and firmly attached. 
     In the resin sealing step, the sealing resin sheet  33  is semi-cured. By using a conductive adhesive with a lower melting point than the melting point of the sealing resin sheet  33 , the conductive adhesive can be cured concurrently with the resin-sealing of the sealing resin sheet  33  in the resin sealing step. Accordingly, a highly productive manufacturing method of a solar cell module  3  with simplified process steps can be obtained. That is, it is desirable that the resin sealing step is performed with a heating temperature of approximately 100° C. so that the sealing resin sheet  33  is semi-cured and the conductive adhesive is cured. 
     Also, the fixing holes  10   h  formed in the wiring sheet  10  are filled with the sealing resin sheet  33  in the resin sealing step, so the position of the wiring sheet  10  can be fixed, and the connection between the first electrode connecting portion  11   c  and the first electrode  21  as well as the connection between the second electrode connecting portion  12   c  and the second electrode  22  can be reinforced and stabilized. 
     The first lead-out portions  11   t  and the second lead-out portions  12   t  are configured such that they are connected to the outside of the exterior sheet  34  via the terminal holes  33   h  and  34   h  by the connection of lead-out terminals in the resin sealing step. 
     After the sealing resin sheet  33  has been semi-cured, and the conductive adhesive has been cured, the solar cell module  3  is heated in an oven to fully cure the sealing resin sheet  33  (sealing resin drying step). Then, an insulating treatment (for sealing end faces) is performed on the peripheral end of the solar cell module  3 , a terminal box  35  is attached to the exterior sheet  34 , output lead wires  36  are connected to the lead-out terminals corresponding to the first lead-out portions  11   t  and the second lead-out portions  12   t  via the terminal holes  33   h  and  34   h.    
     Subsequently, a frame member  37  is attached to the solar cell module  3 , completing the manufacture. The frame member  37  is ordinarily made of aluminum. 
     As described above, the manufacturing method of a solar cell module  3  according to the present embodiment involves: a cell preparation step of preparing a unit solar cell  2 ; a wiring member connecting step of positioning and disposing a solar cell wiring member  1  on a first electrode  21  and a second electrode  22  and connecting a first electrode connecting portion  11   c  of a first conductor wire  11  and a second electrode connecting portion  12   c  of a second conductor wire  12  to the first electrode  21  and the second electrode  22 , respectively, with a conductive adhesive; a sealing resin sheet disposing step of disposing a sealing resin sheet  33  so as to overlap a non-light-receiving face and the solar cell wiring member  1 ; and a resin sealing step of resin-sealing the unit solar cell  2  by heating and pressing the sealing resin sheet  33 . 
     With this configuration, it is possible to position the first conductor wire  11  to the first electrode  21  and position the second conductor wire  12  to the second electrode  22  with ease and high accuracy. Also, because a conductive adhesive is used to connect them, the connection time can be reduced, and the productivity of the solar cell module  3  can be improved. 
     Embodiment 3 
     The relationship between the unit solar cell and the solar cell wiring member described in Embodiments 1 and 2 will be described in Embodiment 3 with reference to  FIGS. 4 and 5 . 
       FIG. 4  is an exploded perspective view showing the relationship between a unit solar cell and a solar cell wiring member that are applied to a solar cell module according to Embodiment 3 of the present invention.  FIG. 5  is a perspective view showing a state in which the unit solar cell and the solar cell wiring member shown in  FIG. 4  are laminated and connected. The basic configuration is the same as those of Embodiments 1 and 2 and, thus, mainly the differences will be described here. 
     A unit solar cell  2  of the present embodiment is a thin film solar cell. In addition, a first electrode  21  and a second electrode  22  for providing electricity are formed on the back surface side (non-light-receiving face side) of a photoelectric conversion portion  20 . By the use of such a thin film solar cell, a highly productive and inexpensive solar cell module  3  can be obtained. 
     Because a configuration is adopted in which, for example, two unit solar cells  2  constitute a solar cell module  3 , it is necessary to collect the respective electrodes of the two unit solar cells  2 . That is, it is necessary to connect two first electrodes  21  and two second electrodes  22  that are disposed symmetrically in parallel on both ends of the unit solar cells  2 . 
     In accordance with the solar cell wiring member  1  of the present embodiment, an appropriate wiring pattern can be set, so the present embodiment is applicable not only to the arrangement example of the present embodiment, but also to the case where more unit solar cells  2  are arranged. 
     As described above, the solar cell wiring member  1  is required to collect and connect the first electrodes  21  and the second electrodes  22  of two unit solar cells  2 . Accordingly, two first conductor wires  11  that correspond to the first electrodes  21  and two second conductor wires  12  (two second electrode connecting portions  12   c ) that correspond to the second electrodes  22  are disposed in parallel. That is, the first conductor wires  11  and the second conductor wires  12  are disposed such that two first electrode connecting portions  11   c  correspond to two first electrodes  21  and two second electrode connecting portions  12   c  correspond to two second electrodes  22 . 
     Also, two first through portions  11   h  and two second through portions  12   h  are disposed aligned with each other so as to correspond to a terminal box  35  through which the electricity from the unit solar cell  2  is provided. That is, two first lead-out portions  11   t  and two second lead-out portions  12   t  are disposed aligned with each other. 
     As already described in Embodiments 1 and 2, by positioning and laminating the solar cell wiring member  1  (first electrode connecting portions  11   c , second electrode connecting portions  12   c ) on the unit solar cells  2  (first electrodes  21 , second electrodes  22 ) and connecting the solar cell wiring member  1  and the unit solar cells  2  to each other with a conductive adhesive, it becomes possible to configure a wiring portion in which the solar cell wiring member  1  is connected to the unit solar cells  2  and through which electricity is provided from the unit solar cells  2  to the outside. 
     In addition, positioning can be achieved by performing positioning at both ends, so it is unnecessary to perform positioning at the center and as a result, the positioning step can be simplified. Furthermore, the accuracy of positioning at both ends will be the accuracy of positioning for the whole, so positioning accuracy can be improved. 
     As described above, according to the present embodiment, by applying the solar cell wiring member  1  of the present invention to a thin film solar cell in which elements are formed at a high density, it becomes possible to provide wiring with ease and high accuracy. Accordingly, a highly reliable solar cell module  3  can be obtained and, in addition, the solar cell module  3  can be manufactured with good productivity. 
     Embodiment 4 
     A solar cell wiring member and a solar cell module according to Embodiment 4 of the present invention will be described with reference to  FIGS. 6 and 7 . 
       FIG. 6  is a perspective view showing the outer appearance of a solar cell wiring member  1   a  according to Embodiment 4 of the present invention in its completed state.  FIG. 7  is an exploded perspective view showing an overall configuration of a solar cell module used to illustrate a solar cell module and a method of manufacturing a solar cell module according to the present embodiment. 
     The solar cell wiring member  1   a  of the present embodiment is provided with a first conductor wire  11  connected to a first electrode  21  of a first polarity (e.g., p-electrode) formed on a non-light-receiving face of a unit solar cell  2  (see  FIG. 7 ), a second conductor wire  12  connected to a second electrode  22  of a second polarity (e.g., n-electrode) formed on the non-light-receiving face of the unit solar cell  2 , and an insulating sheet  13  in which the first conductor wire  11  and the second conductor wire  12  are fixed; and is configured such that the insulating sheet  13  is disposed facing the non-light-receiving face of the unit solar cell  2  so as to provide electricity to the outside by the first conductor wire  11  and the second conductor wire  12 . Herein, a plurality of first conductor wires  11  and a plurality of second conductor wires  12  are arranged according to the number of unit solar cells  2 . 
     As a method of fixing the first conductor wire  11  and the second conductor wire  12  onto the insulating sheet  13 , it is possible to use any one of methods in which they are formed on the insulating sheet  13  using various conductive pastes, vapor deposition, etching, etc., and methods in which they are bonded onto the insulating sheet  13  with adhesives such as a polyester adhesive, an acrylic adhesive and an epoxy adhesive. 
     The connection between the first electrode connecting portion  11   c  of the first conductor wire  11  and the first electrode  21  as well as the connection between the second electrode connecting portion  12   c  of the second conductor wire  12  and the second electrode  22  can be achieved by disposing them so as to correspond to each other, and joining them with solder or bonding them with a conductive adhesive as in Embodiment 1. In order to fix the insulating sheet  13  to the unit solar cell  2 , it is also possible to use auxiliary fixing tape  14  to tape the insulating sheet  13  to the unit solar cell  2  as in Embodiment 1. 
     A process of manufacturing a solar cell module according to the present embodiment is the same as the solar cell module manufacturing process described in Embodiment 2, except for the solar cell wiring member  1   a , and the positioning and fixation of the insulating sheet  13  to the solar cell module  3  (the positioning and fixation thereof to the unit solar cell  2 ) can be performed by providing fixing holes (anchor holes)  13   h  in the insulating sheet  13 , and filling the fixing holes  13   h  with a sealing resin supplied from the sealing resin sheet  33  in the resin sealing step of resin-sealing the unit solar cell  2  by heating and pressing the sealing resin sheet  33 . 
     The first lead-out portions  11   t  of the first conductor wires  11  and the second lead-out portions  12   t  of the second conductor wires  12  are drawn to the outside through the terminal holes  33   h  of the sealing resin sheet  33  and the terminal holes  34   h  of the exterior sheet  34  and are connected to a terminal box  35 . 
     According to the present embodiment, because the position of the first conductor wires and that of the second conductor wires are integrally fixed by the insulating sheet, it becomes possible to define the positioning between the first electrode and the first conductor wire as well as the positioning between the second electrode and the second conductor wire with ease and high accuracy so that they can be connected with good productivity. Accordingly, it is possible to manufacture a highly reliable solar cell module with superior productivity. That is, it is possible to provide wiring that can be easily incorporated into the solar cell wiring member and has high positional accuracy. 
     In addition, because the first conductor wires and the second conductor wires are fixed to the insulating sheet, the first conductor wires and the second conductor wires can be insulated in advance. Accordingly, the need for an extra task of inserting an insulating sheet between the first and second conductor wires and the unit solar cell can be eliminated, so the manufacturing process can be simplified, improving productivity. 
     The present invention may be embodied in various other forms without departing from the gist or essential characteristics thereof. Therefore, the embodiments disclosed in this application are to be considered in all respects as illustrative and not limiting. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all modifications or changes that come within the meaning and range of equivalency of the claims are intended to be embraced therein. 
     This application claims priority on Japanese Patent Application No. 2007-022023 filed in Japan on Jan. 31, 2007, the entire contents of which are incorporated herein by reference. Furthermore, the entire contents of references cited in the present specification are herein specifically incorporated by reference. 
     INDUSTRIAL APPLICABILITY 
     The present invention can be effectively applied to a highly reliable solar cell module with high positional accuracy and superior productivity, a solar cell wiring member applied to such a solar cell module, and a method of manufacturing such a solar cell module.