JP2006351958A - Photovoltaic module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a photovoltaic module which prevents enlargement of the dimensions of a photovoltaic panel by reducing ineffective parts which do not contribute to power generation. <P>SOLUTION: The photovoltaic module comprises the photovoltaic panel 10 including a plurality of solar cells interposed between translucent substrates 12, 13 through the intermediary of an encapsulant 14, and a connecting lead 15 extending from an edge between the translucent substrates 12, 13 for outputting generated electric current; a terminal box 30 attached near to the edge of the photovoltaic panel 10 and housing a connecting part between the connecting lead 15 and a cable 16 for outputting the generated electric current to the outside; and an outer frame 20 set around the outer circumference of the photovoltaic panel 10. An opening 28 through which the connecting lead 15 and the terminal box 30 are inserted is provided to the outer frame 20 at a position which at least the terminal box 30 faces. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a solar cell module, and is particularly suitable for use in a double-sided light-receiving solar cell module.

  Photovoltaic power generation that converts light energy into electrical energy using a photoelectric conversion effect is widely used as a means for obtaining clean energy that can contribute to the global environment. And with the improvement in the photoelectric conversion efficiency of a solar cell, the photovoltaic power generation system using many solar cell modules has been installed also in the private house.

  In a solar cell module provided with a solar cell element that generates power by sunlight, in order to output the electric power generated by the solar cell element to the outside, the positive and negative electrode conductors are arranged in the solar cell module, and the ends thereof are arranged. A method is used in which a part is taken out from the solar cell module as a connection terminal, and a power line for outputting current to the connection terminal is connected to take out the current.

  The connection terminal is provided by projecting a conductor from the edge of the solar cell module or by exposing the conductor by providing a through hole in the cover member of the solar cell module.

  The connection portion between the connection terminal and the power line is stored in a storage body called a terminal box for the purpose of protecting the connection portion, preventing leakage, or the like. The terminal box is usually retrofitted to get in the way during module manufacture. In addition, in order to reduce the weight burden on the conductor, connection terminal and connection part after connection, and to avoid shaking and metal fatigue due to vibration etc., adhesion to the surface opposite to the light receiving surface of the solar cell module It is fixed by screwing to the outer frame.

  FIG. 14 is a cross-sectional view of a main part of a conventional solar cell module, and FIG. 15 is a plan view of the main part.

  As shown in FIGS. 14 and 15, the solar cell module 100 includes a plate-like solar cell panel 50 including a plurality of solar cell elements 51, and a sealing material (not shown) on the outer periphery of the solar cell panel 50. And an outer frame 60 made of aluminum or the like. In the solar cell panel 50, a plurality of solar cell elements 51 are sandwiched between a light-transmitting insulating substrate 52 made of white glass or the like on the light-receiving surface side and a weather-resistant substrate 53 on the back surface side. A sealing resin 54 such as (ethylene vinyl acetate) is filled.

  The outer frame 60 is manufactured by extrusion molding of aluminum, and has a U-shaped fitting portion 62 that sandwiches the solar cell panel 50 at the upper portion of the main body portion 61, and the main body frame 61 portion is hollow to reduce the weight. While being designed, it is relatively thick and sturdy. One end of the terminal box 70 is in contact with the inner side of the outer frame 60, and is bonded and fixed to the back side substrate 53. The terminal box 70 is screwed to the outer frame 60 as necessary.

  In the mounting of the terminal box 70 described above, with respect to the single-sided light-receiving solar cell module, the terminal box is hidden behind the solar cell element and does not interfere with light reception, and there is no problem.

  However, when used in a double-sided light-receiving solar cell module, the amount of protrusion of the terminal box to the power generation unit increases, so that a part of the solar cell element 51 is covered as shown in FIG. The problem is that the amount of power generation decreases. In order not to cover the solar cell element with the terminal box 70, it is necessary to take many ineffective portions that do not contribute to power generation, which causes an increase in the area of the solar cell module.

  Further, since the connection tab 55 for removal for connection to the terminal box 70 is sandwiched between the substrate 53 and the outer frame 60, it is easily damaged. The connection tab 55 has an insulating coating on the surface so as to come into contact with the metal outer frame. However, if there is a scratch, there is a risk of poor insulation. As described above, conventionally, it is necessary to form a thick insulating coating, and the cost of the connection tab 55 is increased.

In a double-sided solar cell module, a solar cell panel having a high degree of freedom in forming a solar cell panel has been proposed without the front and back of the solar cell module being fixed when the terminal box is attached. (See Patent Document 1). In this solar cell panel, a double-sided light-receiving power generation element is disposed between a plurality of translucent cover members, and electrode terminals for outputting a current generated from an edge between the translucent cover members are provided. A method of manufacturing a solar cell panel that is formed using a solar cell module that is provided with a terminal box that protrudes and has a terminal box that incorporates a connection portion between the electrode terminal and a power line that outputs current to the outside. The terminal box is attached so that the outer shape is substantially symmetric with a central surface that is parallel to the front and back surfaces of the solar cell module and located at the center of the front and back surfaces. And the attached terminal box is accommodated in the hollow part of a frame, and the solar cell module is comprised.
JP 2003-158285 A

  In the thing of above-mentioned patent document 1, a solar cell element is covered with a terminal box, and the invalid part to electric power generation can be eliminated. However, in this patent document 1, in order to attach the terminal box to the end of the solar cell panel, it is necessary to provide the terminal box with support legs formed in a substantially U shape, and the shape of the terminal box becomes complicated. There is a difficulty. In addition, there is a problem that a support leg corresponding to a change in the thickness of the solar cell panel is required, and it cannot be applied to panels of various shapes. Therefore, an object of the present invention is to provide a solar cell module that does not require a special shape for the terminal box and suppresses an increase in the area of the solar cell panel by reducing ineffective portions that do not contribute to power generation.

  In the solar cell module according to the present invention, a plurality of solar cell elements are sandwiched between a light-transmitting first member and a second member via a filler, and between the first and second members. A solar cell panel in which a connection line for outputting the electric power generated from the end edge of the solar cell panel is extended, and a power line that is attached in the vicinity of the end edge of the solar cell panel and outputs the current to the outside A terminal box having a built-in connection portion; and an outer frame fitted on an outer periphery of the solar cell panel; and an opening into which the connection line and the terminal box are inserted at a position at least facing the terminal box of the outer frame. It is provided.

  In the solar cell module of the present invention, the plurality of solar cell elements are sandwiched between the light-transmitting first member and the second member via a filler, and the first and second A solar cell panel in which a connection line for outputting a current generated from an edge between the members is extended; an outer frame having a fitting portion fitted on the outer periphery of the solar cell panel; and the solar cell panel A terminal box that is attached to the second member in the vicinity of the edge and incorporates a connection portion between the connection line and a power line that outputs current to the outside, and at least the terminal box of the outer frame faces The second member is provided with an opening into which the connection line and the terminal box are inserted, and the first member extends outward of the second member on the side where the connection line extends. Is arranged, and the gap between the second member and the fitting portion The connecting line is guided, and wherein said that the connecting line is guided in the inserted terminal box in the opening.

  In the solar cell module according to the present invention, the plurality of solar cell elements are sandwiched between the translucent first member and the second member via a filler, and the first and second A solar cell panel in which a connection line for outputting a current generated from an edge between the members is extended; an outer frame having a fitting portion fitted on the outer periphery of the solar cell panel; and the solar cell panel Resin-made that is attached to the second member in the vicinity of the edge and has a built-in connection portion between the connection line and a power line that outputs current to the outside, and a rising portion that comes into contact with the inner wall of the fitting portion An opening for inserting the connection line and the terminal box at a position at least facing the terminal box of the outer frame, and between the rising portion of the terminal box and the edge of the solar cell panel. Through the said connection Wherein the line is guided into the terminal box.

  Further, the second member is arranged so that the first member extends to the outside of the second member on the side where the connection line extends, and the end of the first member is What is necessary is just to comprise so that it may contact | abut with the rising part of a terminal box, and the said connection line may be guided to the clearance gap between the said 2nd member and the said rising part.

  In addition, the second member is arranged so that the first member extends to the outside of the second member on the side where the connection line extends, and the end of the first member is It can be configured such that the connection line is guided in a gap between the second member and the rising portion, located near the side wall on the side surface of the fitting portion or in contact with the side wall on the side surface.

  Further, the outer dimension of the second member may be smaller than that of the first member.

  In addition, the second member may be a translucent member, and the solar cell panel may be a double-sided light receiving solar cell panel.

  According to the present invention, since the terminal box can be inserted into the main body of the hollow structure of the outer frame of the solar cell module from the opening, the amount of protrusion of the terminal box to the power generation unit can be reduced. As a result, it is possible to contribute to improvement in conversion efficiency without increasing the area of the solar cell module.

  Further, since the connection line can be taken out from the outer frame using the opening, it is not sandwiched between the translucent member and the outer frame. Therefore, the connection line can be prevented from being damaged, and the occurrence of insulation failure can be suppressed without making the insulation coating thicker than necessary.

  In addition, the terminal box is provided with a rising portion that contacts the inner wall of the fitting portion of the outer frame, and is configured to guide the connection line into the terminal box through between the rising portion of the terminal box and the edge of the solar cell panel. By doing so, the connecting wire does not directly contact the outer frame at the rising portion of the resin terminal box, and sufficient insulation can be ensured even if the insulating coating of the connecting wire is thin.

  Furthermore, the second member is arranged such that the first member extends to the outside of the second member on the side where the connection line extends, and the end of the first member is the end of the first member. A space for taking out the connecting line is formed by contacting the rising part of the terminal box and guiding the connecting line in the gap between the second member and the rising part. It is not necessary to take between panels, the area of the solar cell module can be reduced by the amount of space, and the area efficiency with respect to the installation area of the solar cell module can be improved.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof will not be repeated in order to avoid duplication of description.

1 is a plan view of a solar cell module showing a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line AA ′ of FIG. 1, and FIG. 3 is a cross-sectional view taken along the line BB ′ of FIG. FIG. 4 is a plan view of a main part of the solar cell module showing the first embodiment of the present invention, and FIG. 5 is a solar cell showing the first embodiment of the present invention taken along the line CC ′ of FIG. It is module principal part sectional drawing.
As shown in FIGS. 1 to 3, the solar cell module 1 of the present invention includes a rectangular double-sided light-receiving solar cell panel 10 including a double-sided light-receiving solar cell element 11, and an outer periphery of the solar cell panel 10. And a metal outer frame 20 such as aluminum or stainless steel fitted through a sealing material (not shown). The cross-sectional structure of the outer frame 20 in the solar cell module 1 shows only the AA ′ cross section and the BB ′ cross section, but the basic structures of the cross sections of the four sides are the same.

  The solar cell panel 10 uses a translucent insulating substrate 12 made of white plate glass or the like on the light receiving surface side and a translucent insulating substrate 13 made of white plate glass or the like on the back surface side, and a plurality of solar cell elements 11. A transparent sealing resin 14 such as EVA (ethylene vinyl acetate) is filled in the internal gap.

  In this embodiment, the light-transmitting insulating substrate 12 on the light-receiving surface side and the light-transmitting insulating substrate 13 on the back surface side have the same size, and are made of, for example, white glass having an outer dimension of 980 mm × 1500 mm.

  There are various types of solar cell elements 11 such as crystalline and amorphous, but solar cell elements that realize high output by suppressing power generation loss in a defective area on the surface of the solar cell element are attracting attention. . In this solar cell element, a substantially i-type amorphous silicon layer in which a dopant is not introduced is formed between the crystalline substrate and the p-type and n-type amorphous silicon layers to improve the interface characteristics. These solar cell elements 11 are connected in series and parallel with inner leads, and are configured to generate a predetermined output, for example, an output of 200 W, from the solar cell panel 10 via the connection lead 15.

  The outer frame 20 has a hollow body portion 21 and a fitting portion 22 which is located on the upper portion of the body portion 21 and has a U-shaped cross section into which a sealing material is fitted into the outer peripheral portion of the solar cell panel. The fitting portion 22 is provided with a recess 26 for storing a sealing material. At least two opposite sides of the four sides of the main body frame 21 are formed with flanges 27 protruding outward from the bottom surface and further extending upward.

  In this embodiment, as shown in FIGS. 3 to 5, an opening 28 into which the terminal box 30 is inserted is provided in the main body 21 of the outer frame 20. The terminal box 30 can be accommodated in the hollow structure of the main body 21 from the opening 28.

  The connection lead 15 is covered with insulation, extends from the end of the solar cell panel 10, and can be taken out from the opening 28 of the main body 21 of the outer frame 20 to the hollow structure portion of the main body 21. The connection lead 15 can be guided to the terminal portion of the terminal box 30 without being sandwiched between the translucent insulating substrate 13 and the fitting portion 22 of the outer frame 20 as in the prior art.

  Thus, in this embodiment, since the terminal box 30 can be inserted into the hollow main body 21 of the outer frame 20 of the solar cell module 1 from the opening 28, the amount of protrusion of the terminal box 30 to the power generation unit is small. Less. As a result, it is possible to contribute to improvement in conversion efficiency without increasing the area of the solar cell module.

  Furthermore, since the connection lead 15 can be taken out to the hollow structure portion of the outer frame 20 using the opening 28, the light-transmitting insulating substrate 13 and the fitting portion 22 of the outer frame 20 are not sandwiched. Therefore, the connection lead 15 can be prevented from being damaged, and the occurrence of insulation failure can be suppressed without increasing the thickness of the insulation coating more than necessary.

  Next, an example of the terminal box 30 used in the embodiment of the present invention will be described with reference to FIGS. 6 is a plan view showing a connecting lead portion of a solar cell panel used in the present invention, FIG. 7 is an exploded perspective view showing a terminal box used in the first embodiment of the present invention, and FIG. 8 is a solar cell. It is a top view which shows the state by which the terminal box was attached to the panel.

  As shown in FIG. 6, in the solar cell panel 10 of this embodiment, four insulation-coated connection leads 15a to 15d are led out from the edge of the panel. For example, the connection lead 15a is pulled out from the edge of the solar cell panel 10 as a cathode terminal and the connection lead 15d is a positive terminal. Further, bypass connection leads 15 b and 15 c are drawn out from the edge of the solar cell panel 10. That is, this solar cell panel 10 is configured by connecting, for example, six strings in which a plurality of solar cell elements 11 are connected in series in series. The bypass connection leads 15b and 15c are connected from strings other than the strings to which the connection leads 15a and 15d led out as the cathode terminal and the positive electrode terminal are connected. Bypass diodes are connected between the connection leads, and power is extracted from the solar cell module 1 even when the output of any of the strings decreases due to the influence of a shadow or the like. For this reason, the connection leads 15a, 15b, 15c, 15d are connected to the series in the terminal box 30 via a bypass diode.

  The terminal box 30 is composed of a box-shaped main body 31 having an opening on one surface and a lid 32 attached to the opening and sealing the opening. The main body 31 and the lid 32 are formed by resin molding.

  Inside the main body 30 of the terminal box 30, terminal blocks 33a to 33e provided corresponding to the connection leads are provided. And corresponding to the terminal blocks 33a to 33e, the bottom of the main body 30 is provided with insertion holes 36 for inserting connection leads. In addition, insertion holes 37 and 37 into which power lines are inserted are provided on both side surfaces of the main body 31.

  In this embodiment, five terminal blocks are provided for four connection leads. In this embodiment, since no connection lead is connected to the terminal block 33e, the terminal block 33e and the terminal block 33c are connected by a jumper wire. A bypass diode 34 is connected between the terminal blocks 33a and 33b, between the terminal blocks 33b and 33e, and between the terminal blocks 33c and 33d.

  The terminal box 30 and the connection leads 15a to 15d are connected through the insertion holes 36 through the connection leads 15a to 15d, and the connection leads 15a to 15d are connected to the terminal blocks 33a to 33d by soldering. Then, the power line 16 inserted from the insertion hole 37 is firmly attached to the terminal block 33a by a method such as cable caulking. Similarly, the power line 16 inserted from the insertion hole 37 is firmly attached to the terminal block 33d by a method such as cable caulking. A bushing or the like may be attached to the insertion hole 37 as necessary to improve waterproofness. Further, although not shown in the figure, it is preferable to provide the terminal box 30 with a stopper for the power line 16 so as to improve the mechanical strength.

  In this way, the connection leads 15a, 15b, 15c, and 15d are connected in series using the terminal box 30, and the positive power line 16 and the cathode power line 16 are led out from the terminal box 30, respectively.

  Next, another embodiment of the present invention will be described. 9 and 10 show a terminal box used in another embodiment of the present invention, FIG. 9 is an exploded perspective view, and FIG. 10 is a perspective view.

  As shown in FIGS. 9 and 10, the terminal box 30 is formed of an insulating resin, and is provided with a rising portion 38 that comes into contact with the inner wall of the fitting portion 22 of the outer frame 20. In this example, a rising portion 38 is connected to the main body portion 31. When the outer frame 20 is attached to the outer periphery of the solar cell panel 10, the rising portion 38 guides the connection lead 15 through between the rising portion 38 and the edge of the solar cell panel 10.

  FIG. 11 is a cross-sectional view of a main part of a solar cell module according to the second embodiment of the present invention using the terminal box 30.

  As shown in FIG. 11, the terminal box 30 is attached in the vicinity of the edge of the translucent substrate 13 on the back surface side of the solar cell panel 10. The terminal box 30 is accommodated in the hollow structure of the main body 21 from the opening 28 provided in the outer frame 20, and the fitting portion 22 is in a state where the rising portion 38 of the terminal box 30 is in contact with the inner wall of the fitting portion 22. The solar cell panel 10 is fitted into the. In this embodiment, the rising portion 38 is formed at a height that reaches the inner wall on the light receiving surface side of the fitting portion 22, and the rising portion 38 is positioned between the inner wall side of the fitting portion 22 and the solar cell panel 10. And the edge part of the solar cell panel 10 is comprised so that the metal outer frame 20 may not contact | connect. The solar cell panel 10 is fitted into the fitting portion 22 with a gap A between the rising portion 38 and the edge of the solar cell panel 10 so that the connection lead 15 can be guided.

  In this manner, the connection lead 15 can be guided into the terminal box 30 through between the rising portion 38 of the terminal box 30 and the edge of the solar cell panel 10. As a result, the connection lead 15 does not directly contact the outer frame 20 at the rising portion 38 of the resin terminal box 30, and sufficient insulation can be ensured even if a thin insulation coating is used for the connection lead 15. it can.

  FIG. 12 is a cross-sectional view of an essential part of a solar cell module according to the third embodiment of the present invention using the terminal box 30. As shown in FIG.

  In the first embodiment and the second embodiment, the light-transmitting insulating substrate 12 on the light-receiving surface side and the light-transmitting insulating substrate 13 on the back surface side have the same size. For this reason, the gap A is provided so that the connection lead 15 can be guided, and the size of the solar cell module increases accordingly. Therefore, in the third embodiment, the gap between the edge of the solar cell panel 10 and the rising portion 38 is eliminated.

  In the third embodiment, the outer dimension of the translucent insulating substrate 13 on the back surface side is made smaller than the outer dimension of the translucent insulating substrate 12 on the light receiving surface side. For example, the light-transmitting insulating substrate 12 on the light-receiving surface side is made of white plate glass having an outer dimension of 980 mm × 1500 mm, and the light-transmitting insulating substrate 13 on the back surface side is made of white plate glass having an outer size of 960 mm × 1470 mm, The outer dimensions are smaller than the substrate on the light receiving surface side.

  As a result, as shown in FIG. 12, the end of the light-transmitting insulating substrate 12 on the light receiving surface side is brought into contact with the rising portion 38 of the terminal box 30 and is fitted into the fitting portion 22 of the outer frame 20. A gap is formed between the transparent insulating substrate 13 on the back side and the rising portion 38. The connection lead 15 can be guided into this gap, and the connection lead 15 can be inserted into the terminal box 30. Further, the connection lead 15 is configured not to be sandwiched between the end portion of the translucent insulating substrate 13 and the rising portion 38 by the gap.

  By configuring as described above, it is not necessary to provide a space for taking out the connection line between the outer frame 20 and the solar cell panel 10, and the area of the solar cell module can be reduced by the amount of the space, and the solar cell module The area efficiency with respect to the installation area can be improved.

  FIG. 13: is principal part sectional drawing of the solar cell module which concerns on the 4th Embodiment of this invention using the said terminal box 30. As shown in FIG. In the above-described third embodiment, the rising portion 38 is formed at a height that reaches the inner wall of the fitting portion 22 on the light receiving surface side. On the other hand, in the fourth embodiment, the connection lead 15 makes contact with the inner wall of the fitting portion 22 at such a height that the rising portion 38a does not reach the back surface of the translucent insulating substrate 12 on the light receiving surface side. It is formed to a height that can be prevented. Then, the end portion of the light-transmitting insulating substrate 12 on the light receiving surface side is brought into contact with the inner wall on the side surface of the fitting portion 22 and is fitted into the fitting portion 22 of the outer frame 20. Also in the fourth embodiment, a gap is formed between the translucent insulating substrate 13 on the back surface side and the rising portion 38a. The connection lead 15 can be guided into this gap, and the connection lead 15 can be inserted into the terminal box 30. Similarly to the third embodiment, the connection lead 15 is configured not to be sandwiched between the end portion of the translucent insulating substrate 13 and the rising portion 38a by the gap.

  With the configuration described above, it is not necessary to provide a space for taking out the connection line between the outer frame 20 and the solar cell panel 10, and the translucent insulating substrate 12 is directly formed on the inner wall of the fitting portion 22. Therefore, the area of the solar cell module can be further reduced, and the area efficiency with respect to the installation area of the solar cell module can be improved. In addition, since the rising portion 38a can be made small, the work of inserting the terminal box 30 into the opening 28 is facilitated, and the material cost can be reduced.

  In the fourth embodiment shown in FIG. 13, there is a gap between the rising portion 38a and the translucent insulating substrate 12, but the tip of the rising portion 38a is formed on the translucent insulating substrate 12. You may comprise in the height which contacts.

  Further, as in the third and fourth embodiments described above, in the case of a configuration in which the end portion of the translucent insulating substrate 12 is in contact with the rising portion 38 or the inner wall on the side surface of the fitting portion 22, the solar cell panel 10 is It can be attached to the outer frame 20 with high accuracy. In the third and fourth embodiments, the rising portions 38 and 38a may be provided only in the vicinity where the connection lead 15 is guided.

  Further, in the above-described embodiment, the outer dimension of the light-transmitting insulating substrate 13 on the back surface side is made smaller than the outer dimension of the light-transmitting insulating substrate 12 on the light-receiving surface side, so that the connection lead 15 is the light-transmitting insulating substrate. The gap is secured so as not to be sandwiched between the end portions of 13. In contrast, the translucent insulating substrate 12 and the translucent substrate are used so that the translucent insulating substrate 12 extends outward on the side where the connection lead 15 is taken out from the end surface, using substrates of the same outer dimensions. The gap may be secured by shifting the insulating substrate 13 from the insulating substrate 13.

  Also in the first embodiment described above, the outer dimension of the light-transmitting insulating substrate 13 on the back surface side is made smaller than the outer dimension of the light-transmitting insulating substrate 12 on the light-receiving surface side, so that the connection leads 15 are light-transmitting insulating. A gap is ensured so that it is not sandwiched between the end portions of the conductive substrate 13, or a substrate having the same outer dimensions is used, and the side where the connection lead 15 is taken out from the end surface is placed outward on the translucent insulating substrate 12. It is possible to use the solar cell panel 10 in which the translucent insulating substrate 12 and the translucent insulating substrate 13 are shifted so as to extend. By using such a solar cell panel 10, when the solar cell panel 10 is fitted into the outer frame 20, the connection leads 15 are connected between the side wall of the fitting portion 22 and the translucent insulating substrate 13. It can be configured to ensure a sufficient gap to be guided.

  Further, in the above-described embodiment, the back side substrate is configured by the translucent insulating substrate 13, but the present invention can also be applied to a solar cell module using an insulating back member that does not have translucency. .

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and is intended to include meanings equivalent to the scope of claims for patent and all modifications within the scope.

  The present invention is applied to a solar power generation device.

It is a top view of the solar cell module which shows 1st Embodiment of this invention. FIG. 2 is a cross-sectional view taken along line A-A ′ of FIG. 1. FIG. 2 is a sectional view taken along line B-B ′ of FIG. 1. It is a principal part top view of the solar cell module which shows 1st Embodiment of this invention. FIG. 2 is a cross-sectional view of the main part of the solar cell module showing the first embodiment of the present invention taken along the line C-C ′ of FIG. 1. It is a top view which shows the connection lead part of the solar cell panel used for this invention. It is a disassembled perspective view which shows the terminal box used for 1st Embodiment of this invention. It is a top view which shows the state by which the terminal box was attached to the solar cell panel. It is a disassembled perspective view which shows the terminal box used for 2nd or 3rd Embodiment of this invention. It is a perspective view which shows the terminal box used for 2nd or 3rd Embodiment of this invention. It is a principal part top view of the solar cell module which shows 2nd Embodiment of this invention. It is a principal part top view of the solar cell module which shows 3rd Embodiment of this invention. It is a principal part top view of the solar cell module which shows 4th Embodiment of this invention. It is principal part sectional drawing of the conventional solar cell module. It is a principal part top view of the conventional solar cell module.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Solar cell panel 11 Solar cell element 15 Connection lead 16 Power line 20 Outer frame 21 Main-body part 22 Fitting part 28 Opening part 30 Terminal box

Claims (7)

  A plurality of solar cell elements are sandwiched between a translucent first member and a second member via a filler, and a current is generated from an edge between the first and second members. A solar cell panel in which a connection line for outputting the power is extended, and a terminal box that is attached in the vicinity of the edge of the solar cell panel and incorporates a connection portion between the connection line and a power line that outputs current to the outside; An outer frame fitted on the outer periphery of the solar cell panel, and an opening for inserting the connection line and the terminal box is provided at a position of the outer frame facing at least the terminal box. Solar cell module.   A plurality of solar cell elements are sandwiched between a translucent first member and a second member via a filler, and a current is generated from an edge between the first and second members. A solar cell panel in which a connection line for outputting the power is extended, an outer frame having a fitting portion fitted on the outer periphery of the solar cell panel, and the second member in the vicinity of an edge of the solar cell panel And a terminal box having a built-in connection portion between the connection line and a power line for outputting current to the outside, and the connection line and the terminal box are inserted into at least a position of the outer frame facing the terminal box. The second member is disposed such that an opening is provided, and the first member extends to the outside of the second member on the side where the connection line extends, and the second member The connection line is guided in a gap between the fitting portion and in the opening. Solar cell module, wherein the connection line is guided to the input has been in terminal box.   A plurality of solar cell elements are sandwiched between a translucent first member and a second member via a filler, and a current is generated from an edge between the first and second members A solar cell panel in which a connection line for outputting the power is extended, an outer frame having a fitting portion fitted on the outer periphery of the solar cell panel, and the second member in the vicinity of an edge of the solar cell panel A resin terminal box provided with a built-in connection portion between the connection line and a power line that outputs current to the outside and provided with a rising portion that comes into contact with an inner wall of the fitting portion, and the outer frame An opening for inserting the connection line and the terminal box is provided at least at a position facing the terminal box, and the connection line passes between the rising portion of the terminal box and the edge of the solar cell panel. To be guided to Solar cell module and butterflies.   The second member is arranged so that the first member extends to the outside of the second member on the side where the connection line extends, and the end of the first member is the terminal box. The solar cell module according to claim 3, wherein the connection line is guided in a gap between the second member and the rising portion.   The second member is arranged so that the first member extends to the outside of the second member on the side where the connection line extends, and the end of the first member is fitted to the end 4. The sun according to claim 3, wherein the connection line is guided in a gap between the second member and the rising portion, and is positioned near or in contact with the side wall on the side wall of the portion. Battery module.   55. The solar cell module according to claim 2, 4 or 54, wherein an outer dimension of the second member is smaller than an outer dimension of the first member. The solar cell module according to any one of claims 1 to 6, wherein the second member is formed of a translucent member, and the solar cell panel is a double-sided light receiving solar cell panel.

Images