solar cell module

The solar cell module integrates a fiber-based sheet-like member with the sealing material to conceal wiring members, addressing visibility and adhesion issues, improving design and longevity by ensuring color harmony and reliable adhesion.

JP7734035B2Active Publication Date: 2025-09-04SHARP KK
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Patent Information

Application Number
JP2021159646
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-09-29
Publication Date
2025-09-04
Estimated Expiration
2041-09-29

AI Technical Summary

Technical Problem

Conventional solar cell modules face issues with the visibility of metallic luster from wiring members, which detract from the overall design quality, and the adhesion of resin films covering these members is poor, leading to potential peeling over time, especially in applications where aesthetics are important, such as vehicle installations.

Method used

A solar cell module design where solar cell strings are sealed with a translucent substrate and back surface protective member, using a fiber-based sheet-like member impregnated with a sealing material to cover and integrate with the wiring members, ensuring color harmony and improved adhesion.

Benefits of technology

The design effectively conceals wiring members, enhancing aesthetic appeal and preventing peeling, thus maintaining a harmonious appearance and long-term reliability without the need for additional adhesives, suitable for various installation surfaces including vehicles.

✦ Generated by Eureka AI based on patent content.

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Abstract

To improve a design of a solar cell module and make it possible to use the solar cell module for a long period of time without causing delamination.SOLUTION: A solar cell module 1 has a plurality of solar cell strings sealed with a sealing material 43 between a translucent substrate 41 and a back sheet 42. The solar cell string includes a plurality of solar cells 10 electrically connected thereto. Adjacent solar cell strings are electrically connected to each other by wiring members (e.g., intermediate wiring members 33). Between the wiring members and the translucent substrate 41, a sheet-like member 50 is arranged to cover the wiring members, and the sealing material 43 is disposed inside the sheet-like member 50.SELECTED DRAWING: Figure 5
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Description

[Technical Field]

[0001] The present invention relates to a solar cell module including a plurality of solar cells. [Background technology]

[0002] A solar cell module generally has a plurality of substantially rectangular solar cells arranged between a light-transmitting substrate and a backsheet, and the cells are arranged in a matrix within a frame that matches the shape of the installation surface. The backsheet, frame, and other components that make up the solar cell module are preferably colored in a suitable color that blends seamlessly with the installation surface and its surroundings. However, wiring members such as lateral wiring and connecting wiring arranged along the frame are often made of solder-coated copper foil, which results in an appearance with a metallic luster such as silver.

[0003] For example, while the frame body, back sheet, etc. are white or black, the wiring members have a metallic luster, making them more noticeable in appearance. This has led to the problem of reducing the overall design quality of the exterior of buildings and other structures in which solar cell modules are installed. To address this conventional problem, for example, Patent Document 1 discloses covering the wiring members with a colored resin film or the like. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-339089 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the resin film or other covering material that covers the wiring member has poor adhesion to the EVA resin, which is the sealing material disposed between the light-transmitting substrate and the backsheet, and there is a risk of peeling off over long-term use. In particular, with the recent development of solar cell modules for vehicles, there is a risk that the impact on the appearance of vehicles, for which design is important, will be a major problem.

[0006] The present invention has been made in consideration of the above-mentioned problems, and its object is to provide a solar cell module that can suitably cover the wiring members that make up the solar cell module to improve its design, make it possible to harmonize with the installation surface and its surrounding environment, and can be used for a long period of time without peeling. [Means for solving the problem]

[0007] The solution of the present invention to achieve the above-mentioned object is based on a solar cell module in which multiple solar cell strings are sealed with a sealing material between a translucent substrate and a back surface protective member, and this solar cell module is characterized in that the solar cell strings have multiple solar cells electrically connected together, adjacent solar cell strings are electrically connected together by a wiring member, a sheet-like member including a fiber base material is arranged between the wiring member and the translucent substrate so as to cover the wiring member, and the fiber base material is impregnated with the sealing material.

[0008] In the solar cell module having the above configuration, the fiber base material is preferably the same color or a similar color to the rear surface protection member.

[0009] In the solar cell module, the sheet-like member may be disposed at a plurality of locations so as to individually cover the plurality of wiring members.

[0010] In the solar cell module, the sheet-like member may be disposed across at least two or more adjacent wiring members among the plurality of wiring members, integrally covering the wiring members.

[0011] In the solar cell module, the fiber base material is preferably a nonwoven fabric.

[0012] By satisfying these specific requirements, the sheet-like member can be laminated integrally with the wiring member, improving the design, and also reducing the possibility of peeling between the sheet-like member and the wiring member. [Effects of the Invention]

[0013] According to the present invention, it is possible to improve the design of a solar cell module by suitably concealing the wiring members, and also to reduce the risk of peeling between the wiring members and the sheet-like member. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a plan view showing a schematic configuration of a solar cell module according to a first embodiment of the present invention. [Figure 2] FIG. 3 is a cross-sectional view showing a connection structure between solar cells in the solar cell module. [Figure 3] FIG. 2 is an enlarged plan view of part A in FIG. [Figure 4] FIG. 2 is a cross-sectional view schematically showing a stacked structure of the solar cell module. [Figure 5] 4 is a cross-sectional view of FIG. 3 taken along line B-B. [Figure 6] 1. FIG. 4 is a plan view showing another example of the configuration of the solar cell module, and is an enlarged view of part A in FIG. 1, equivalent to FIG. [Figure 7] FIG. 10 is a plan view showing a schematic configuration of a solar cell module according to a second embodiment of the present invention. [Figure 8] FIG. 10 is a perspective view showing a schematic configuration of a solar cell module according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, a solar cell module according to an embodiment of the present invention will be described with reference to the drawings.

[0016] (Embodiment 1) FIG. 1 is a plan view showing a schematic configuration of a solar cell module 1 according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the internal structure of the solar cell module 1, showing the connection structure of solar cells 10.

[0017] 1 does not show the sealing material, back sheet, etc. that are provided in the solar cell module 1. Furthermore, common reference symbols are used to denote components that are common to the first to third embodiments described below, and redundant explanations will be omitted.

[0018] As shown in FIG. 1, the solar cell module 1 includes a panel 40 including a solar cell string 2 formed by electrically connecting a plurality of solar cells 10, and a plurality of wiring members (32, 33) that electrically connect adjacent solar cell strings 2 together.

[0019] 2, the solar cell module 1 has a structure in which solar cells 10 and the like that make up the solar cell string 2 are sealed between a light-transmitting substrate 41 and a backsheet (back surface protection member) 42 by a light-transmitting sealing material 43. In the solar cell module 1, the light-transmitting substrate 41 is provided on the light-receiving surface side, and the backsheet 42 is provided on the back surface side. Here, the "light-receiving surface" of the solar cell module 1 refers to the surface onto which sunlight is mainly incident, and the "back surface" refers to the surface opposite to the light-receiving surface.

[0020] The light-transmitting substrate 41 can be any substrate that is transparent to sunlight, and for example, a glass substrate can be used. The backsheet 42 can be any substrate that can protect the back surface of the sealing material 43, and for example, a weather-resistant film such as PET can be used. Furthermore, in order to sufficiently suppress the transmission of water vapor and oxygen to the sealing material 43 and ensure long-term reliability, the backsheet 42 may include a metal film such as aluminum.

[0021] Solar cell 10 is a flat photovoltaic element that generates electricity when irradiated with light, and as shown in FIG. 2, includes a front electrode 101 and a back electrode 102. For example, front electrode 101 includes busbar electrodes 103 and finger electrodes (not shown). Busbar electrodes 103 are strip-shaped and are formed linearly in a first direction D1 on the front surface of solar cell 10. Finger electrodes are formed extending in a second direction D2 from both side edges of busbar electrode 103. The finger electrodes are patterned at regular intervals to cover the entire light-receiving surface of solar cell 10.

[0022] The back electrode 102 is formed in a linear strip shape in the first direction D1 on the back surface of the solar cell 10, and is provided so as to face the bus bar electrode 103 on the front and back sides. The wiring material (interconnector) 31 is connected to the bus bar electrode 103 of the front electrode 101 of one solar cell 10 and the back electrode 102 of the other solar cell 10, thereby connecting adjacent solar cells 10 in series. The light-transmitting substrate 41 is provided so as to face the front side of the solar cell 10 (the upper side in FIG. 2). The back sheet 42 is provided so as to face the back side of the solar cell 10 (the lower side in FIG. 2).

[0023] The wiring material 31 has a configuration in which the outer surface of a substrate formed in a long, thin strip shape or a wire with a substantially circular cross section is coated with a conductive adhesive or solder. The materials for the substrate and the wire are not particularly limited, but metals such as copper can be used.

[0024] 1, the solar cell modules 1 each have a flat plate shape, and are exemplified by divided cells obtained by dividing a solar cell substrate having a size of, for example, about 156 mm square into two. The solar cell 10 has an overall size of about 156 mm x 78 mm square.

[0025] Here, a divided cell refers to a small cell obtained by dividing a standard-sized cell (a cell equivalent to one solar cell wafer, also called a full cell). Examples of divided cells include a standard-sized cell divided in half (a half cell) or a standard-sized cell divided into quarters. Divided cells can reduce the current value per cell (by half in the case of a half cell), which can reduce the power loss of the solar cell module 1 accordingly. In the illustrated embodiment, solar cell 10 is a half cell.

[0026] A plurality of half-cell solar cells 10 are arranged in a matrix along a first direction (column direction) D1 and a second direction (row direction) D2 in the solar cell module 1. In the solar cell module 1 according to the exemplary embodiment, wiring members (end wiring members 32, intermediate wiring members 33) are provided in the middle of the panel 40 in the first direction D1, and strings are provided on both sides of these wiring members.

[0027] Each string includes a plurality of solar cell strings 2, each having seven solar cells 10 arranged in a first direction D1. One solar cell string 2 is configured by connecting seven solar cells 10 in series with wiring material 31.

[0028] 1, the solar cell strings 2 arranged at both ends in the second direction D2 are electrically connected to an end wiring member 32 at one end in the first direction D1, and are electrically connected to other solar cell strings 2 at the other end via an intermediate wiring member 33. Two adjacent solar cell strings 2 are connected in series via the intermediate wiring member (bus bar) 33.

[0029] Additionally, six solar cell strings 2 are arranged in the second direction D2, forming a string in which a total of 42 solar cell cells 10 are arranged in a 7 x 6 arrangement. The end wiring member 32 also serves to extract power from the plurality of solar cell strings 2. As a result, the solar cell module 1 has a configuration in which strings in which 42 solar cell cells 10 are electrically connected in series are electrically connected in parallel, and it is possible to output power equivalent to 42 full cells connected in series (equivalent to 84 half cells, 42 in series).

[0030] Fig. 3 is an enlarged plan view showing part A in Fig. 1. Fig. 4 is a cross-sectional view schematically showing the layered structure of the solar cell module 1, and Fig. 5 is a cross-sectional view taken along line BB in Fig. 3.

[0031] 3, adjacent solar cell strings 2a and 2b are connected to an intermediate wiring member 33 via wiring material 31. The solar cell string adjacent to solar cell string 2a is also connected to an intermediate wiring member 33 in the same manner. These intermediate wiring members 33 are covered with a sheet-like member 50.

[0032] Referring to Figure 4, a translucent substrate 41, a sealing material 43 on the light-receiving surface side, multiple solar cells 10, wiring material 31 for the solar cells 10, a sealing material 43 on the back surface side, and a back sheet 42 are stacked in sequence, for example with the translucent substrate 41 side facing down, to form a laminated structure in which the solar cells 10, etc. are sandwiched between the translucent substrate 41 and the back sheet 42.

[0033] The sealing material 43 is made of a resin material containing EVA (ethylene-vinyl acetate copolymer) as a main component. A sheet-like member 50 is disposed between the intermediate wiring member 33 and the light-transmitting substrate 41, overlapping the intermediate wiring member 33 and covering the intermediate wiring member 33. The sheet-like member 50 is a porous sheet, and is preferably a nonwoven fabric. The sheet-like member 50 includes a fiber base material formed by combining fibers. The nonwoven fabric of the sheet-like member 50 may be a single fiber base material, or a long-fiber nonwoven fabric or short-fiber nonwoven fabric formed by intertwining multiple types of fiber base materials.

[0034] The sheet-like member 50 using nonwoven fabric has a fiber base material that is the same color or a similar color as the back sheet 42. For example, if the back sheet 42 is black or a dark color close to black, the sheet-like member 50 is preferably a nonwoven fabric made of a black fiber base material, and has a black appearance.

[0035] By subjecting the solar cell module 1 to heat and pressure bonding in this laminated configuration, it has a structure in which the solar cell 10 and the like are sealed with the sealant 43 between the light-transmitting substrate 41 and the back sheet 42, as shown in FIG. 5. The sealant 43, whose viscosity has been reduced by heating, is impregnated into the porous sheet-like member 50 shown in FIG. 4. As a result, as shown in FIG. 5, a sealant fiber layer 50a is formed in which the sealant 43 is also disposed inside the sheet-like member 50. The sealant fiber layer 50a contains the sheet-like member 50 (the fiber base material constituting the sheet-like member 50) in the resin of the sealant 43, and can be said to be a layer in which the sheet-like member 50 and the sealant 43 are integrated. The sealant fiber layer 50a is layered on the intermediate wiring member 33 in a state in which the fiber base material and the sealant 43 are mixed.

[0036] Therefore, a sheet-like member 50 containing a sealing material 43 therein is adhered to the intermediate wiring member 33, and the intermediate wiring member 33 and the sheet-like member 50 are sealed between the light-transmitting substrate 41 and the back sheet 42. The sheet-like member 50 is made of, for example, a fiber base material of the same color as the back sheet 42, so that when viewed from above the light-transmitting substrate 41 on the light-receiving surface side, the intermediate wiring member 33 is covered and concealed by the sheet-like member 50, making it inconspicuous. Similarly, the end wiring member 32 as a wiring member is also laminated with the sheet-like member 50 containing a sealing material 43 therein, and is covered and concealed by the sheet-like member 50, making it inconspicuous.

[0037] 1, the size of the sheet-shaped member 50 in the first direction D1 is longer than the length (width) of each wiring member in the first direction D1. The sheet-shaped member 50 is disposed across at least two or more adjacent wiring members among the plurality of wiring members and integrally covers those wiring members. The size of the sheet-shaped member 50 in the second direction D2 is longer than the total length in the second direction D2 of the plurality of wiring members that it covers.

[0038] That is, in the illustrated embodiment, at both end portions of the solar cell module 1 in the first direction D1, three intermediate wiring members 33 are covered and concealed together by one sheet-like member 50. Also, at the middle portion of the solar cell module 1 in the first direction D1, two end wiring members 32 and two intermediate wiring members 33 are covered and concealed together by one sheet-like member 50.

[0039] Since the sheet-like member 50 and the back sheet 42 are the same color or similar colors, the back sheet 42 and the sheet-like member 50 appear to blend together when viewed from the translucent substrate 41 side, improving the design of the solar cell module 1. Furthermore, by matching the color of the back sheet 42 with the color tone of the installation surface, the solar cell module 1 can be installed in harmony with the installation surface and the surrounding environment.

[0040] Furthermore, since the sealing material 43 disposed between the light-transmitting substrate 41 and the back sheet 42 is integrated with the sheet-shaped member 50, the sheet-shaped member 50 can be used for a long period of time without peeling off. Furthermore, since the sheet-shaped member 50 is impregnated with the sealing material 43, the adhesion between the sheet-shaped member 50 and the wiring members (the end wiring members 32 and the intermediate wiring member 33) is significantly improved, allowing the sheet-shaped member 50 to be used for a long period of time without peeling off. In addition, since the sheet-shaped member 50 is laminated and integrated with the wiring members by the sealing material 43, there is no need to fix the sheet-shaped member 50 to the wiring members using a separate adhesive or the like, which reduces manufacturing costs, simplifies the work process, and improves productivity.

[0041] Fig. 6 is a plan view showing another example of the configuration of the solar cell module 1 according to this embodiment, and is an enlarged view equivalent to Fig. 3 of part A in Fig. 1. As shown in the figure, the sheet-like member 50 may be divided and arranged in multiple locations, covering each of the multiple wiring members individually.

[0042] 6, adjacent solar cell strings 2a, 2b are connected to an intermediate wiring member 33 via wiring material 31, and this intermediate wiring member 33 is covered and concealed by a single sheet-like member 50. Other intermediate wiring members 33 aligned in the second direction D2 are also individually covered and concealed by sheet-like members 50. Even in this configuration example, as in the above, the back sheet 42 and the sheet-like member 50 appear to be integrated from the side of the light-transmitting substrate 41, thereby improving the design of the solar cell module 1.

[0043] The sheet-like member 50 and the wiring members (intermediate wiring member 33 and end wiring member 32) do not necessarily need to be in contact with each other, and may have some contacting portions and some non-contacting portions. That is, the sealing material 43 is integrated with the fiber base material of the sheet-like member 50 so as to be mixed and present, and it may be the sealing material 43 or the fiber base material that is in contact with the wiring members.

[0044] (Embodiment 2) 7 is a plan view showing a schematic configuration of a solar cell module 1 according to embodiment 2 of the present invention. The solar cell module 1 according to this embodiment is different from the solar cell module 1 according to embodiment 1 in the number of solar cells 10 arranged, but has the same other configurations.

[0045] That is, the solar cells 10 of the half-cell are arranged in a matrix along a first direction (column direction) D1 and a second direction (row direction) D2. As shown in Fig. 7, in each string provided on both sides of the end wiring member 32, six solar cell strings 2, each having five solar cells 10 arranged in the first direction D1, are arranged in the second direction D2, resulting in a 5 x 6 arrangement of a total of 30 solar cells 10. Each solar cell string 2 is configured by connecting five solar cells 10 in series.

[0046] The solar cell strings 2 arranged at both ends in the second direction D2 are electrically connected at one end in the first direction D1 by an end wiring member 32, and at the other end by an intermediate wiring member 33. Two adjacent solar cell strings 2 are connected in series via the intermediate wiring member 33. As a result, the solar cell module 1 is configured by electrically connecting strings of 30 solar cells 10 electrically connected in series in parallel, and is capable of outputting power equivalent to 30 full cells connected in series (equivalent to 60 half cells, 30 in series).

[0047] At both ends of the solar cell module 1 in the first direction D1, the three intermediate wiring members 33 are covered and concealed by one sheet-like member 50. Also, at the middle part of the solar cell module 1 in the first direction D1, the two end wiring members 32 and the two intermediate wiring members 33 are covered and concealed by one sheet-like member 50.

[0048] Because the sheet-like member 50 and the back sheet 42 are the same color or a similar color, the back sheet 42 and the sheet-like member 50 appear to blend together when viewed from the translucent substrate 41 side, improving the design of the solar cell module 1. Furthermore, because the sheet-like member 50 is laminated and integrated with the wiring member by the sealing material 43, there is no need to fix the sheet-like member 50 to the wiring member using an adhesive or the like, which reduces manufacturing costs, simplifies the work process, and improves productivity.

[0049] (Embodiment 3) 8 is a perspective view showing a schematic configuration of a solar cell module 1 according to embodiment 3 of the present invention. The solar cell module 1 according to this embodiment is common to the solar cell module 1 according to embodiment 1 in the connection form of the solar cells 10 and the arrangement form of the sheet-like members 50, and is characterized by the overall shape of the panel 40.

[0050] As shown in Fig. 8, each of the solar cells 10 provided in the solar cell module 1 is flat, but the panel 40 as a whole has a curved shape. The solar cell module 1 has a gently curved shape in a first direction D1 and a second direction D2. Between a light-transmitting substrate 41 and a back sheet 42, a plurality of solar cell strings (2) including the solar cells 10, wiring members 31, and intermediate wiring members 33 and end wiring members 32 as wiring members are arranged in the same connection form as in the first embodiment. These components are arranged along the curved shape and sealed with a sealing material 43.

[0051] A sheet-like member 50 is disposed so as to overlap the intermediate wiring member 33 and the end wiring member 32. The sheet-like member 50 is laminated on the intermediate wiring member 33 and the end wiring member 32 with a sealing material 43 also disposed inside, and is integrated along the curved surface shape. By forming the sheet-like member 50 from a nonwoven fabric, it is possible to integrate the fiber base material of the sheet-like member 50 and the sealing material 43 in a mixed state inside the panel 40, and to provide a sealing material fiber layer 50a.

[0052] The curved shape of the solar cell module 1 is not limited to a gentle curve with uniform curvature in the first direction D1 and the second direction D2, but can be a variety of curved shapes, such as varying the curvature to match the curved shape of the installation surface, or including a flat shape in part.

[0053] Such a curved solar cell module 1 can be fixed to the surface of various curved structures, etc., as an installation surface. For example, in a vehicle such as an automobile, a curved solar cell module 1 can be installed on the roof of the vehicle body, and the vehicle can be equipped with a solar power generation system that converts light energy into electrical energy.

[0054] In this case, the color of the back sheet 42 constituting the solar cell module 1 is set to a color tone that matches the installation surface on which the solar cell module 1 is installed and the surrounding environment, and the sheet-like member 50 is set to the same color or a similar color as the back sheet 42, so that the wiring members can be hidden without being noticeable. Therefore, even when the installation surface is the surface of a vehicle or the like where design is important, the solar cell module 1 can be installed without damaging the appearance.

[0055] Furthermore, as mentioned above, conventional solar cell modules have a configuration in which the wiring member is covered with a colored resin film or the like, which causes stress to act on the wiring member, making it particularly susceptible to peeling, and causing problems with adhesion to the sealing material. In contrast, in the solar cell module 1 according to this embodiment, the sheet-like member 50 is integrated with the sealing material 43 and laminated on the wiring member, which significantly improves adhesion between the sheet-like member 50 and the wiring member, thereby eliminating the peeling problem and enabling good long-term use.

[0056] As described above, in the solar cell module 1 of the present invention, the sheet-like member 50 suitably covers the wiring members to make them less noticeable, making it possible to provide a highly aesthetic design suitable for a variety of installation forms, and also increasing reliability by allowing the module to be used for a long period of time without peeling.

[0057] In the above-described first to third embodiments, the solar cell 10 provided in the solar cell module 1 is exemplified as a standard-sized cell (full cell) divided in half, but the present invention is not limited to this and may be, for example, a cell divided into one-fourths or a full cell. Furthermore, the solar cell 10 may be a monofacial or bifacial type. The number and type of solar cell 10 arranged are not particularly limited, and for example, solar cells 10 made of various semiconductor materials such as polycrystalline semiconductors and thin-film semiconductors can be used.

[0058] The above-disclosed embodiments are illustrative in all respects and are not intended to be limiting. Therefore, the technical scope of the present invention should not be interpreted solely by the above-disclosed embodiments, but should be defined by the claims. Furthermore, all modifications within the scope and meaning equivalent to the claims are included. [Explanation of symbols]

[0059] 1. Solar cell module 2 Solar cell strings 10 solar cells 101 Surface electrode 102 Back electrode 103 Busbar electrode 31 Wiring material 32 End wiring member (wiring member) 33 Intermediate wiring member (wiring member) 40 panels 41 Translucent substrate 42 Back sheet (rear surface protection material) 43 Encapsulating material 50 Sheet-like member 50a Sealing material fiber layer

Claims

1. A solar cell module in which a plurality of solar cell strings are sealed with a sealing material between a light-transmitting substrate and a rear surface protection member, the solar cell string includes a plurality of electrically connected solar cells, and adjacent solar cell strings are electrically connected to each other by wiring members; a sheet-like member including a fiber base material is disposed between the wiring member and the light-transmitting substrate so as to cover the wiring member, the fiber base material is impregnated with the sealing material, The solar cell module is characterized in that the sheet-like member is disposed at a plurality of locations so as to individually cover the plurality of wiring members.

2. A solar cell module comprising a plurality of solar cell strings sealed with a sealing material between a light-transmitting substrate and a back surface protective member, the solar cell string includes a plurality of solar cells in which adjacent solar cells are electrically connected to each other, and the adjacent solar cell strings are electrically connected to each other by wiring members; a sheet-like member including a fiber base material is disposed between the wiring member and the light-transmitting substrate so as to cover the wiring member, the fiber base material is impregnated with the sealing material, The solar cell module, wherein the sheet-like member is disposed in a location that covers the wiring member, and is not disposed between adjacent solar cells in the solar cell string.

3. The solar cell module according to claim 1 or 2, the sheet-like member is not disposed between the wiring member and the back surface protection member, The solar cell module is characterized in that the fiber base material is the same color or a similar color to the rear surface protection member.

4. The solar cell module according to claim 2, The solar cell module is characterized in that the sheet-like member is disposed at a plurality of locations so as to individually cover the plurality of wiring members.

5. The solar cell module according to claim 2, The solar cell module is characterized in that the sheet-like member is disposed across at least two or more adjacent wiring members among the plurality of wiring members, integrally covering the wiring members.

6. The solar cell module according to any one of claims 1 to 5, The solar cell module is characterized in that the fiber base material is a nonwoven fabric.

7. 7. The method for manufacturing a solar cell module according to claim 1, wherein a plurality of solar cell strings are sealed with a sealing material between the light-transmitting substrate and the rear surface protection member, The solar cell string includes a plurality of electrically connected solar cells, and adjacent solar cell strings are electrically connected to each other by wiring members; the light-transmitting substrate, the sealing material, the plurality of solar cell strings, the sealing material, and the back surface protection member are stacked in this order from the light-receiving surface side, and a sheet-like member including a fiber base material and the sealing material are disposed on the light-transmitting substrate side of the wiring member, to form a laminated structure in which the light-transmitting substrate side of the wiring member is covered with the sheet-like member; A method for manufacturing a solar cell module, characterized in that the laminated structure is heated and pressed to impregnate the fiber base material with the sealing material.

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