JP2011109139A - Method of manufacturing solar cell module and solar cell module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a solar cell module capable of improving sealing performance and outer appearance, and a solar cell module. <P>SOLUTION: An outer dimension of a second surface component 2 is 98% of the outer dimension of a first surface component 1 or smaller. The first surface component 1, a filler material sheet, a solar cell 4, a filler material sheet, and the second surface component 2 are mounted in sequence and bonded by thermocompression. As a result, the solar cell 4 is sealed within a filler material layer 6 so that an end surface of the filler material layer 6 formed of the filler material sheets is formed over end surfaces of the first surface component 1 and the second surface component 2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a solar cell module manufacturing method and a solar cell module in which a solar cell is sandwiched between a first surface member and a second surface member.

  Conventionally, this type of solar cell module, for example, a solar cell module used as a general household power source, is usually installed outdoors, so that it has sufficient durability against various external environments such as significant changes in temperature and humidity or wind and rain. Required.

  Moreover, although the output voltage per photovoltaic cell is only less than 1V, when using as a power supply for general households, it is necessary to raise the output voltage to about 180V.

  Therefore, conventionally, a plurality of adjacent solar cells are electrically connected in series by a connecting member made of a conductive member such as a copper foil at a predetermined interval, and the entire voltage is set to a predetermined voltage. In addition, the solar cell module is sealed in a layer of a filler (encapsulant) such as EVA (ethylene vinyl acetate) to improve durability against the environment.

  Here, the manufacturing method of the said solar cell module is demonstrated. First, on the heater plate of the manufacturing apparatus, a surface member, a filler sheet having substantially the same outer dimensions as the surface member, a solar cell, a filler sheet similar to the above, and the outer dimensions approximately the same as those of the surface member and the filler sheet. These back members are sequentially mounted, and these are subjected to thermocompression treatment with the manufacturing apparatus. Thereby, the filler is gelled to form a predetermined filler layer, and the solar cell is sealed in the filler layer between the front surface member and the back surface member. And the outer periphery of this is hold | maintained with a frame, and it integrates and a solar cell module is manufactured. In addition, the electric output generated by the solar cell is drawn out to a terminal box provided on the back surface of the back member by a power lead line and is taken out to the outside.

  By the way, during the thermocompression treatment, the filler is softened and once gelled as described above. However, since the outer dimensions of the front surface member and the back surface member are conventionally substantially the same, There has been a problem that the back surface member is displaced, resulting in poor appearance. Further, due to the deviation, it is difficult to attach the frame body, and if the frame body is forcibly attached, the problem that the front surface member or the back surface member is cracked at worst.

  Therefore, the applicant has disclosed a solar cell module in which the outer dimension of the back member is about 99.5% of the outer dimension of the front member. Thereby, even when the shift | offset | difference at the time of thermocompression bonding is eliminated or a shift | offset | difference arises, it became possible to attach a frame without trouble. Moreover, even if it is a case where a frame is not provided, it became possible to keep an external appearance favorable by forming a back surface member larger than a surface member (for example, refer patent document 1).

Japanese Patent Laid-Open No. 10-256584

  However, the filler is gelated by the thermocompression treatment and then cooled and solidified, but when the filler cools, it shrinks and so-called shrinkage occurs. At this time, when the outer dimensions of the front surface member, the back surface member, and the filler sheet are made substantially the same as in the conventional case, the filler is pulled up to about 5 mm inside the surface where the front surface member and the back surface member face each other. There was a problem that the sealing performance of the solar cell module was deteriorated and the appearance was poor due to the pulling of the filler.

  In addition, such a dimensional difference cannot improve the inconvenience that the filler is drawn to the inside of the surface where the front surface member and the back surface member face each other at the time of thermocompression bonding, and the sealing performance and appearance are deteriorated.

  In addition, the solar cell module also has to be provided with a terminal box on the back surface as in the case of the conventional solar cell module, or protruded from the end surface (outer peripheral edge), but when the terminal box is provided on the back surface In the double-sided light incident type solar cell module, the amount of light incident on the solar cell is reduced and the output is reduced because the terminal box prevents light from entering from the back side. Further, when the back member is made of a material such as glass or hard plastic, it is necessary to make a hole for taking out the terminal, which causes a cost problem.

  Further, when the terminal box is provided on the end face, the terminal box is installed in a state protruding from the end faces of the front surface member 51, the back surface member 52 and the filler 56 as shown in FIG. Since the terminal box 61 is exposed at the end face, there is a risk that the sunlight is directly irradiated and the durability is lowered.

  The present invention has been made to solve the related art, and provides a solar cell module manufacturing method and a solar cell module capable of improving the productivity, sealing performance, and appearance of solar cells. The purpose is to do.

  According to a first aspect of the present invention, there is provided a method for manufacturing a solar cell module, wherein a solar cell is sandwiched between a first surface member and a second surface member, and an outer dimension of the second surface member is set. The first surface member, the filler sheet, the solar cell, the filler sheet, and the second surface member are placed in this order and are thermocompression-bonded with 98% or less of the outer dimension of the first surface member. It is characterized by.

  A solar cell module according to a second aspect of the present invention comprises a solar cell sandwiched between a first surface member and a second surface member and filled with a filler between the first surface member and the second surface member. The outer dimension of the member is 98% or less of the outer dimension of the first surface member.

  The solar cell module of the invention of claim 3 is characterized in that, in the above invention, the outer dimension of the filler sheet is between the first surface member and the second surface member.

  A solar cell module according to a fourth aspect of the present invention comprises a solar cell sandwiched between a first surface member and a second surface member and sealed in a filler, wherein the second surface The outer dimension of the member is 98% or less of the outer dimension of the first surface member, and is electrically connected to the solar cell within the dimensional difference between the first surface member and the second surface member. A terminal box is provided.

  The solar cell module of the invention of claim 5 is characterized in that the first and second surface members are plate bodies in the invention of claim 2, claim 3 and claim 4.

  The solar cell module of the invention of claim 6 is provided with a predetermined concealing portion on the first surface member of the portion corresponding to the terminal box in the invention of claim 2, claim 3, claim 4 and claim 5. It is characterized by that.

  A solar cell module according to a seventh aspect of the present invention is the solar cell module according to the second, third, fourth, fifth, and sixth aspects, wherein at least one of the first and second surface members is made of glass. Features.

  The solar cell module of the invention of claim 8 is the invention of claim 2, claim 3, claim 4, claim 5, claim 6 and claim 7, wherein at least one of the first and second surface members is It is made of hard plastic.

  A solar cell module according to a ninth aspect of the present invention is the solar cell module according to the second, third, fourth, fifth, and sixth aspects, wherein one of the first and second surface members is made of glass. The other is made of hard plastic.

  According to invention of Claim 1, it is a manufacturing method of the solar cell module formed by pinching | interposing a solar cell between the 1st surface member and the 2nd surface member, Comprising: The external dimension of a 2nd surface member is set. Since the first surface member, the filler sheet, the solar cell, the filler sheet, and the second surface member are placed in this order, and are thermocompression-bonded, with 98% or less of the outer dimension of the first surface member. By providing a dimensional difference between the first surface member and the second surface member, when the filler cools and contracts, the end surface of the filler becomes the end surface of the first surface member and the second surface member. Therefore, the problem that the sealing performance of the solar cell module deteriorates can be solved.

  Furthermore, by setting the outer dimension of the second surface member to 98% or less of the outer dimension of the first surface member, a dimensional difference occurs between the first surface member and the second surface member. Even if the first surface member or the second surface member is displaced, the frame body can be attached without any trouble.

  Furthermore, the first surface member larger than the second surface member is placed at the bottom so that the first surface member and the second surface member can be easily aligned. Become. Moreover, the inconvenience that a filler sheet hangs down at the time of thermocompression bonding can also be eliminated.

  In general, the manufacturing method makes it possible to manufacture a solar cell module with good sealing performance and appearance.

  According to the invention of claim 2, in the solar cell module formed by sandwiching the solar cell between the first surface member and the second surface member and filling the filler therebetween, the second surface Since the outer dimension of the member is 98% or less of the outer dimension of the first surface member, the sealing performance and the appearance can be improved. Moreover, it is preferable to use resin for the filler.

  Further, as in the invention of claim 3, by setting the outer dimension of the filler sheet to be between the first surface member and the second surface member, the filler sheet does not sag at the time of thermocompression bonding, resulting in poor appearance. It will be possible to avoid.

  According to the invention of claim 4, in the solar cell module in which the solar cell is sandwiched between the first surface member and the second surface member and sealed in the filler, the second surface member The outer dimension is 98% or less of the outer dimension of the first surface member, and a terminal box electrically connected to the solar cell is within the dimensional difference between the first surface member and the second surface member. Since the terminal box is provided, it is possible to avoid the inconvenience that the light reception to the solar cell is hindered or the appearance is deteriorated.

  In addition, since the first surface member is in contact with the lower surface of the terminal box, the terminal box is hardly affected by the external environment, and the durability can be improved. Furthermore, since the terminal box can be abutted and fixed on the upper surface of the first surface member and the end surface of the second surface member, it is more stable than being attached to the end surface. In addition, it is easy to take out the power lead wire and the sealing performance of the takeout portion is reliable.

  In particular, as in the invention of claim 5, the first and second surface members are plate bodies. For example, as in the inventions of claims 7 to 9, at least one of the first and second surface members is made of glass or hard. Even when plastic or one side is made of glass and the other side is made of hard plastic, the above-mentioned invention makes it possible to easily take out the power leader line and reduce the production cost. It becomes like this. Thereby, the productivity of the solar cell 5 can be improved.

  Furthermore, in the invention of claim 6, in addition to the above-described invention, since the predetermined concealing portion is provided on the first surface member corresponding to the terminal box, the appearance can be kept good.

It is a top view of the solar cell module of one Example of this invention. Example 1 It is a bottom view of the solar cell module of FIG. It is a cross-sectional side view of the solar cell module of FIG. It is a schematic block diagram of the manufacturing apparatus of a solar cell module. It is a figure which shows the laminated body mounted on the manufacturing apparatus of FIG. It is a figure which shows the end surface of the EVA layer of the solar cell module of FIG. It is an enlarged view of the terminal box of the solar cell module of FIG. It is an enlarged view of the terminal box of another Example. It is an enlarged view of the terminal box of another another Example. It is an enlarged view of the terminal box of another another Example. It is a cross-sectional side view of the conventional solar cell module. It is a figure which shows the end surface of the EVA layer of the conventional solar cell module.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a plan view of a solar cell module 10 according to an embodiment to which the present invention is applied, FIG. 2 is a bottom view of the solar cell module 10 of FIG. 1, and FIG. 3 is a transverse side view of the solar cell module 10 of FIG. Show. The solar cell module 10 of the present embodiment is formed by sandwiching the solar cell 5 between the front surface member 1 and the back surface member 2 and sealing it in a filler. Although the solar cell module 10 of FIGS. 1 and 2 shows a state in which the frame body 8 is seen through, the solar cell module 10 of this embodiment is assumed to be held by the frame body 8.

  In the figure, reference numeral 1 denotes a surface member (first surface member) made of white plate tempered glass. In the present embodiment, one having an outer dimension of 980 mm × 1500 mm is used. Reference numeral 2 denotes a back surface member (second surface member) made of white sheet tempered glass as in the case of the surface member 1, and has an outer dimension of 960 mm × 1470 mm and a smaller outer dimension than the surface member 1. . That is, the outer dimension of the back surface member 2 is 20 mm smaller on the short side than the front member 1 and 30 mm smaller on the long side. Moreover, while the surface member 1 and the back surface member 2 oppose, it is usually set as about 1-3 mm.

  5 is a solar cell. In the present embodiment, the solar battery 5 is configured by connecting a plurality of double-sided incident solar cells 4. That is, the solar cell 5 is configured such that the adjacent solar cells 4, 4 of the plurality of double-sided incident type solar cells 4 arranged at a predetermined interval are electrically connected to each other by a connecting member 3 made of, for example, copper foil. It is comprised by connecting to. And the solar cell 4 is electrically connected in series by the connection member 3, whereby the entire voltage of the solar cell 5 is boosted to a voltage that can be used in ordinary homes.

  Then, the electrical output generated by the solar cell module 10 is taken out from the gap between the front surface member 1 and the back surface member 2 through the power lead wire 9 through the filler, and the terminal in the terminal box 11 described later. And is taken out from an electric cable (not shown). Further, a bypass diode (not shown) for protecting the solar cell is provided in the terminal box 11.

  The solar cell 5 is embedded in a filler layer. In this embodiment, EVA (ethylene vinyl acetate), which is a thermoplastic resin, is used as the filler. Hereinafter, this is referred to as an EVA layer 6.

  The front surface member 1 is provided on one surface side (front surface side) of the EVA layer 6, and the back surface member 2 is provided on the other surface side (back surface side).

  A predetermined concealing portion is provided on a portion corresponding to the terminal box 11 of the surface member 1, that is, on one side of the long side on the surface member 1. In this embodiment, it is assumed that a printing unit 7 that performs printing on the surface member 1 corresponding to the terminal box 11 is provided as the concealing unit. Thus, by providing the printing part 7 which colored the surface member 1 of the part corresponding to the terminal box 11 by printing, the adhesion | attachment used when adhering the terminal box 11 to the surface by the side of the solar cell 5 of the surface member 1 is used. The agent and the terminal box 11 can be hidden. Thereby, it becomes possible to keep the appearance favorable. Further, since the printing unit 7 can also block the light that passes through the surface member 4 and strikes the terminal box 11, the terminal box 11 can be prevented from being deteriorated.

  Here, the manufacturing method of the said solar cell module 10 is demonstrated using FIG. FIG. 4 is a schematic configuration diagram of a manufacturing apparatus for manufacturing the solar cell module 10. In the figure, reference numeral 100 denotes a lower housing, 101 denotes a heater plate disposed substantially flush with the upper opening of the lower housing 100, and 102 denotes a lid member that is airtightly coupled to the lower housing 100. The lid member 102 is provided with a rubber diaphragm 103 on the side facing the opening of the lower housing 100, and the peripheral portion of the lower housing 100 and the lid member 102 ensures airtightness when coupled. Packing 104... Is attached over the entire circumference. The lower housing 100 is connected to a vacuum pump (not shown).

  In manufacturing the solar cell module 10, first, the surface member 1, the EVA sheet 6 (filler sheet), the plurality of solar cells 4, and the connection member 3 are formed on the heater plate 101 of the manufacturing apparatus from the lower side. The laminated body R which laminates | stacks the solar cell 5 which consists of, the EVA sheet | seat 6 (filler sheet | seat), and the back surface member 2 in this order is mounted (FIG. 5). Here, as the EVA sheet 6, a sheet having an outer dimension between the front member 1 and the rear member 2 is used. In this embodiment, the EVA sheet 6 having an outer dimension of 970 mm × 1485 mm is used. .

  At this time, the outer dimension of the back member 2 is 20 mm smaller on the short side than the front member 1 and 30 mm smaller on the long side than the front member 1 as described above. Each dimension difference D1 is provided with a difference D2 sufficient to accommodate the terminal box 11 on one side (printing unit 7 side) on the long side, and a difference D3 sufficient to absorb a positional shift in the process on the other side. Put. For example, in this embodiment, the paper is placed with a difference of 10 mm on the short side, 20 mm on the one side where the printing unit 7 on the long side is provided, and a 10 mm difference on the other side. Furthermore, an electric power leader 9 for taking out the electric power generated by the solar battery 5 is attached from the solar battery 5. The electric power leader 9 can be connected to a terminal in the terminal box 11. The sheet 6 is placed in a state extending from the sheet 6.

  Next, the lower housing 100 is evacuated by a vacuum pump (not shown), and the heater plate 101 is heated to about + 170 ° C. At this time, the diaphragm 103 is pressed against the laminated body R placed on the heater plate 101, and the EVA sheet 6 is gelled to form a predetermined EVA layer 6. Thereby, the solar cell 5 is sealed in the EVA layer 6 in a state of being sandwiched between the front surface member 1 and the back surface member 2.

  Here, the outer dimension of the back member 2 is set to 98% or less of the outer dimension of the front member 1 as in the present invention, and the back member 2 is mounted with a difference of 10 mm on both sides on the short side with the front member 1. Even if the above-mentioned misalignment occurs at the time of thermocompression bonding, the back surface member 1 is placed on the long side by placing 20 mm on one side where the printing unit 7 is provided and 10 mm on the other side. It falls within the range of the outer dimension of the surface member 1.

  Moreover, when manufacturing the solar cell module 10 with a manufacturing apparatus, the surface member 1 is placed on the lowermost side, and a member smaller than the surface member 1 is placed thereon, so that the alignment of the back surface member 2 is performed. Can be easily performed, and the inconvenience of the EVA sheet 6 dripping can be avoided.

  When the back member is in the form of a sheet, it is possible to cut off the portion protruding from the surface member after thermocompression bonding, so that a larger one than the surface member 1 can be used to provide an allowable range for alignment. However, when the back member is made of glass or the like, it cannot be easily cut off, and when a front member and a back member having substantially the same outer dimensions are used as in the conventional case, alignment is very difficult. . Moreover, when the EVA sheet 6 larger than the front surface member 1 and the back surface member 2 is used, there is a problem that the EVA sheet 6 melts and droops from the outer peripheral edges of the front surface member 1 and the back surface member 2 during the thermocompression bonding. It was.

  Furthermore, when the EVA sheet 6 cools and hardens, it contracts and so-called shrinkage occurs. At this time, when the outer dimensions of the front member and the rear member are substantially the same as in the prior art, as shown in FIG. The EVA is drawn to the inside of the opposing surface of the back member and the front member, and the distance between the solar cell 4 and the outside (EVA / air boundary) is not sufficient, and the sealing performance and appearance of the solar cell 5 are deteriorated. There has been a problem of lowering.

  However, in the present invention, since the above-described predetermined difference is provided between the end surfaces of the back member 2 and the front member 1, when the EVA cools and contracts, the end surface of the EVA is the back surface as shown in FIG. It is formed across the end face of the member 2 and the end face of the surface member 1.

  Thereby, the inconvenience that the solar cell 4 can draw the EVA layer 6 from between the end surfaces of the front surface member 1 and the back surface member 2 as in the past can be prevented, and the deterioration of the sealing performance and the appearance defect of the solar cell 5 can be eliminated. become able to.

  Further, by placing the surface member 1 larger than the back surface member 2 as in the present invention, the EVA sheet melts at the time of thermocompression bonding, and even if it protrudes from the back surface member 2, it fits in the surface member 1. Can be resolved.

  On the other hand, after the solar cell 5 is sealed in the EVA layer 6 using the manufacturing apparatus as described above, the dimension formed on one side (printing unit 7 side) of the long side of the back member 2 and the front member 1. The terminal box 11 is attached within the difference D2.

  At this time, first, the power lead wire 9 taken out through the EVA layer 6 and the terminal in the terminal box 11 are connected. Next, an adhesive is applied to the surface (upper surface) on the surface member 1 side of the terminal box 11, and is arranged immediately below the printing unit 7 with the dimension difference D <b> 2 on one side of the long side of the surface member 1. Thereby, the terminal box 11 can be accommodated in the dimensional difference D2 of the surface member 1.

  Further, by arranging the terminal box 11 in a portion corresponding to the printing unit 7, the applied adhesive and the terminal box 11 can be hidden in the printing unit 7, so that the appearance can be kept good. It becomes.

  And after attaching the terminal box 11 as mentioned above, these are integrated by hold | maintaining in the opening part of the frame 8 as shown in FIG. 3, and the solar cell module 10 is manufactured. Thus, while making the outer dimension of the back surface member 2 98% or less of the outer dimension of the surface member 1, the surface member 1, the EVA sheet 6, the solar cell 5, the EVA sheet 6, and the back surface member 2 are mounted in this order. Then, by performing the thermocompression treatment, the front surface member 1 and the back surface member 2 can be easily aligned. Moreover, the problem that the EVA sheet 6 hangs down during the thermocompression treatment can be eliminated.

  Further, the outer member of the back member 2 is set to 98% or less of the outer dimension of the front member 1, and the predetermined member is provided with the predetermined dimensional difference between the front member 1 and the rear member 2, and the surface member is subjected to the thermocompression treatment. Even if the 1 or the back member 2 is displaced, the frame body 8 can be attached without any trouble.

  Furthermore, by providing a dimensional difference between the front surface member 1 and the back surface member 2 and making the size of the EVA larger than that of the back surface member 2, the end surface of the EVA layer 6 is cooled when the EVA layer 6 cools and contracts. Is formed over the end face of the back member 2 and the end face of the front member 1, so that the problem that the EVA layer 6 can be pulled from the end faces of the front member 1 and the back member 2 can be solved.

  Furthermore, by providing the terminal box 11 electrically connected to the solar cell 5 within the dimensional difference between the front surface member 1 and the back surface member 2, the terminal box 11 allows the back surface member 2 to be connected to the solar cell 5. It is possible to avoid inconveniences in which light reception is hindered or appearance is deteriorated.

  Further, since the surface member 1 is in contact with the upper surface of the terminal box 11, the terminal box 11 is hardly affected by the external environment, and the durability can be improved. Furthermore, by providing the printing unit 7 on the surface member 1 corresponding to the terminal box 11, it is possible to maintain a good appearance. Further, since the terminal box 11 is abutted and fixed on the two surfaces of the upper surface of the front surface member 1 and the end surface of the back surface member 2, it is more stable than when the terminal box 61 is exposed to the end surface as in the prior art. It can be attached. Further, it is easy to take out the power lead wire 9 and the sealing performance of the takeout portion is ensured.

  In particular, according to the present invention, even when the front surface member 1 and the back surface member 2 are configured by plates as in the embodiment, the power leader 9 can be easily taken out, so that the production cost can be reduced. It becomes possible to plan.

  In this embodiment, the terminal box 11 is a substantially rectangular terminal box as shown in FIG. 7. However, the terminal box 11 is not limited to this. For example, a part of the back side of the back member 2 is shown in FIG. You may attach the terminal box 11 which exhibited the substantially rectangular shape extended. In this case, it is possible to attach the terminal box 11 more stably by applying an adhesive also to the portion that contacts the back side of the back member 2.

  Furthermore, in the present embodiment, the description has been given using the double-sided light incident type solar cell module 10 in which the back surface member is configured by white plate tempered glass which is a light transmissive material, but the present invention is not limited thereto, for example, You may use a blue plate tempered glass, a hard plastic, etc. for a back surface member. Further, the back member does not necessarily have to be light-transmitting, and may be applied to a single-surface light incident type solar cell module using glass or the like printed or non-light-transmitting hard plastic. Absent.

  Moreover, although the solar cell module 10 of a present Example shall hold | maintain an outer periphery with the frame 8, even if it applies this invention to the solar cell module which does not attach a frame, it does not interfere. In this case, it is good also as a shape where the end surface of the terminal box 11 and the end surface of the surface member 1 correspond like FIG.9 and FIG.10.

  Further, in this embodiment, only the front surface member 1 is held by the frame body 7, but the back surface member 2 may also be held together on the side where the terminal box 11 is not provided.

  Further, the surface member 1 of the present embodiment is provided with the printing unit 7 so as to conceal the terminal box 11, but the printing unit is not limited to the bottom of the terminal box 11, for example, printing is performed on the entire outer periphery of the surface member 1. It can be applied as well. Furthermore, the present invention is effective even when the printing portion is provided on the front surface side (opposite side of the EVA layer 6) of the front surface member 1 only when the printing portion is provided on the back surface side (EVA layer 6 side) of the front surface member.

DESCRIPTION OF SYMBOLS 1 Front surface member 2 Back surface member 3 Connection member 4 Solar cell 5 Solar cell 6 EVA layer 7 Printing part 8 Frame body 9 Power leader 10 Solar cell module 11 Terminal box 100 Lower housing 101 Heater plate 102 Cover member 103 Diaphragm 104 Packing

Claims (9)

  A method for manufacturing a solar cell module comprising a solar cell sandwiched between a first surface member and a second surface member, wherein an outer dimension of the second surface member is set to be outside of the first surface member. The filling is performed by placing the first surface member, the filler sheet, the solar cell, the filler sheet, and the second surface member in this order and thermocompression-bonding with 98% or less of the dimension. Sealing the solar cell in the filler layer such that an end surface of the filler layer formed from the material sheet is formed across the end surfaces of the first surface member and the second surface member. The manufacturing method of the solar cell module characterized by these.   2. The method for manufacturing a solar cell module according to claim 1, wherein an outer dimension of the filler sheet is between the first surface member and the second surface member.   In a solar cell module in which a solar cell is sandwiched between a first surface member and a second surface member, and a filler is filled therebetween, the outer dimension of the second surface member is the first surface The filling layer is 98% or less of the outer dimension of the member, and the filling layer made of the filler is formed so that end surfaces thereof extend over the end surfaces of the first surface member and the second surface member, and the solar cell is formed into the first surface. A solar cell module, which is sealed between the first surface member and the second surface member.   4. The solar cell module according to claim 3, wherein a terminal box that is electrically connected to the solar cell is provided within a dimensional difference between the first surface member and the second surface member.   The solar cell module according to claim 3 or 4, wherein the first and second surface members are plate bodies.   6. The solar cell module according to claim 3, wherein a predetermined concealing portion is provided on the first surface member of a portion corresponding to the terminal box.   The solar cell module according to claim 3, wherein at least one of the first and second surface members is made of glass.   7. The solar cell module according to claim 3, wherein at least one of the first and second surface members is made of hard plastic.   The solar cell module according to any one of claims 3 to 6, wherein one of the first and second surface members is made of glass, and the other is made of hard plastic.

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