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WO2018008258A1 - Boîte à bornes, module de cellule solaire, et procédé de fabrication d'un module de cellule solaire - Google Patents

Boîte à bornes, module de cellule solaire, et procédé de fabrication d'un module de cellule solaire Download PDF

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Publication number
WO2018008258A1
WO2018008258A1 PCT/JP2017/018183 JP2017018183W WO2018008258A1 WO 2018008258 A1 WO2018008258 A1 WO 2018008258A1 JP 2017018183 W JP2017018183 W JP 2017018183W WO 2018008258 A1 WO2018008258 A1 WO 2018008258A1
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WO
WIPO (PCT)
Prior art keywords
solar cell
lid
cell panel
main body
terminal box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/018183
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English (en)
Japanese (ja)
Inventor
幸弘 吉嶺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of WO2018008258A1 publication Critical patent/WO2018008258A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present invention relates to a solar cell module, in particular, a terminal box fixed to a solar cell panel, a solar cell module, and a method for manufacturing the solar cell module.
  • a terminal box is generally provided on the back side of the solar cell panel.
  • the terminal box is mounted on one edge of the solar cell panel (see, for example, Patent Document 1).
  • an insertion hole is provided on the side surface facing the outer edge of the solar cell panel.
  • the output wiring from the solar cell panel is drawn into the terminal box through the insertion hole. If the silicone adhesive for adhering the outer edge of the solar cell panel and the terminal box adheres to the output wiring, the output wiring cannot be soldered into the terminal box. Therefore, since the silicone adhesive is applied while avoiding the insertion hole in the side surface of the terminal box, the application area is reduced and the fixing strength of the terminal box is reduced.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide a technique for improving the fixing strength when the terminal box is fixed to the outer edge of the solar cell panel.
  • a terminal box has an opening on the top surface, a main body having an insertion hole on one side surface into which an output wiring from a solar cell panel is inserted, and an opening. And a rib projecting from the lower surface of the main body while facing the same direction as the lid. The outer edge portion of the solar cell panel can be held by the lid body, one side surface, and the rib portion.
  • This solar cell module includes a solar cell panel and a terminal box fixed to the outer edge of the solar cell panel.
  • the terminal box has an opening on the upper surface, a main body having an insertion hole on one side into which an output wiring from the solar cell panel is inserted, a lid that closes the opening and protrudes from one side;
  • the lower surface of the main body includes a rib portion that protrudes in the same direction as the lid.
  • the outer edge portion of the solar cell panel is sandwiched by the lid body, one side surface, and the rib portion, and an adhesive is disposed on the facing portions of the lid body and the rib portion.
  • Still another aspect of the present invention is a method for manufacturing a solar cell module.
  • This method has an opening on the upper surface, a main body having an insertion hole into which one side of the output wiring from the solar cell panel is inserted, a lid that closes the opening and protrudes from one side, A step of applying an adhesive to a portion of the rib portion that should face the lid body in a state where the lid body is removed from the terminal box including a rib portion that projects in the same direction as the lid body on the lower surface of the main body.
  • the fixing strength when the terminal box is fixed to the outer edge of the solar cell panel, the fixing strength can be improved.
  • FIGS. 8 (a) to 8 (f) are cross-sectional views showing the manufacturing procedure of the solar cell module according to Embodiment 2 of the present invention.
  • FIGS. 9A to 9E are cross-sectional views showing the manufacturing procedure of the solar cell module according to Example 3 of the present invention.
  • FIGS. 10A to 10E are cross-sectional views showing another manufacturing procedure of the solar cell module according to Embodiment 3 of the present invention.
  • Example 1 of this invention is related with the solar cell module by which a terminal box is fixed to the outer edge part of a solar cell panel.
  • the output wiring from the solar cell panel is drawn through an insertion hole provided on the side surface facing the outer edge of the solar cell panel.
  • a silicone adhesive material is apply
  • a rib portion is provided so as to protrude from the lower surface of the main body to the back surface side of the solar cell panel, and a detachable lid on the upper surface of the main body is also provided. Projecting to the light receiving surface side of the solar cell panel while facing the rib portion. The light receiving surface side and the back surface side of the solar cell panel are sandwiched between the rib portion and the lid.
  • first opposing surface the surface of the rib portion on the solar cell panel side
  • second opposing surface are provided with a silicone adhesive. Is applied.
  • parallel and orthogonal include not only perfect parallel and orthogonal, but also a case of deviating from parallel within an error range. Further, “substantially” means that they are the same in an approximate range.
  • FIG. 1 is a perspective view showing a configuration of a solar cell module 100 according to Example 1 of the present invention.
  • the solar cell module 100 includes a solar cell panel 110, a terminal box 200, a first external output cable 210a and a second external output cable 210b collectively referred to as an external output cable 210.
  • an orthogonal coordinate system including an x-axis, a y-axis, and a z-axis is defined.
  • the x axis and the y axis are orthogonal to each other in the plane of the solar cell panel 110.
  • the z axis is perpendicular to the x axis and the y axis and extends in the thickness direction of the solar cell panel 110.
  • the positive directions of the x-axis, y-axis, and z-axis are each defined in the direction of the arrow in FIG. 1, and the negative direction is defined in the direction opposite to the arrow.
  • the main plane arranged on the positive side of the z axis is the light receiving surface
  • the z axis The main plane arranged on the negative direction side is the back surface.
  • the positive direction side of the z-axis is referred to as “light-receiving surface side”
  • the negative direction side of the z-axis is referred to as “back surface side”.
  • the solar cell panel 110 has a wide rectangular plate shape in the xy plane.
  • the terminal box 200 is an outer edge portion 112 arranged on the positive side of the y-axis of the solar cell panel 110 and is fixed to the outer edge portion 112 extending in the x-axis direction. In the case where the solar cell panel 110 has a rectangular plate shape, it is surrounded by four outer edge portions.
  • the outer edge portion to which the terminal box 200 is fixed is referred to as an outer edge portion 112.
  • the terminal box 200 has a box shape that is long in the x-axis direction, that is, long in the direction in which the outer edge portion 112 extends.
  • External output cables 210 are connected to both end surfaces of the terminal box 200 in the x-axis direction.
  • the external output cable 210 is a cable for outputting the electric power generated in the solar cell panel 110 to the outside of the solar cell module 100.
  • FIG. 2 is a plan view from the light receiving surface side of the solar cell panel 110.
  • the solar battery panel 110 includes eleventh solar battery cells 10aa,..., 64th solar battery cell 10fd, inter-group wiring member 14, group end wiring member 16, inter-cell wiring member 18, collectively referred to as the solar battery cell 10. It includes a termination wiring member 20, an extraction wiring 30, a first output wiring 32a, a second output wiring 32b, a third output wiring 32c, and a fourth output wiring 32d collectively referred to as an output wiring 32.
  • the first non-power generation region 34a and the second non-power generation region 34b are arranged so as to sandwich the plurality of solar cells 10 in the y-axis direction.
  • the first non-power generation region 34 a is disposed on the positive side of the y-axis with respect to the plurality of solar cells 10, and the second non-power generation region 34 b is on the y-axis with respect to the plurality of solar cells 10. It is arranged on the negative direction side.
  • the first non-power generation area 34 a and the second non-power generation area 34 b (hereinafter, sometimes collectively referred to as “non-power generation area 34”) have a rectangular shape and do not include the solar battery cell 10.
  • the solar battery cell 10 is made of, for example, a semiconductor material such as crystalline silicon, gallium arsenide (GaAs), or indium phosphorus (InP).
  • the structure of the solar battery cell 10 is not particularly limited, but here, as an example, it is assumed that crystalline silicon and amorphous silicon are stacked.
  • a plurality of finger electrodes extending in the x-axis direction parallel to each other and extending in the y-axis direction so as to be orthogonal to the plurality of finger electrodes are provided on the light receiving surface and the back surface of each solar battery cell 10.
  • a plurality of, for example, three bus bar electrodes are provided.
  • the bus bar electrode connects each of the plurality of finger electrodes.
  • the bus bar electrode and the finger electrode are formed of, for example, silver paste.
  • the plurality of solar cells 10 are arranged in a matrix on the xy plane.
  • six solar cells 10 are arranged in the x-axis direction, and four solar cells 10 are arranged in the y-axis direction.
  • the number of the photovoltaic cells 10 arranged in the x-axis direction and the number of the photovoltaic cells 10 arranged in the y-axis direction are not limited to this.
  • the four solar cells 10 arranged side by side in the y-axis direction are connected in series by the inter-cell wiring member 18 to form one solar cell group 12.
  • the first solar cell group 12a is formed by connecting the eleventh solar cell 10aa, the twelfth solar cell 10ab, the thirteenth solar cell 10ac, and the fourteenth solar cell 10ad.
  • Other solar cell groups 12, for example, the second solar cell group 12b to the sixth solar cell group 12f are formed in the same manner.
  • the six solar cell groups 12 are arranged in parallel in the x-axis direction.
  • the solar cell group 12 corresponds to a string.
  • the inter-cell wiring member 18 connects the bus bar electrode on one light receiving surface side of the adjacent solar cells 10 and the bus bar electrode on the other back surface side.
  • the three inter-cell wiring members 18 for connecting the eleventh solar cell 10aa and the twelfth solar cell 10ab include the bus bar electrode on the back surface side of the eleventh solar cell 10aa and the twelfth solar cell 10ab.
  • the bus bar electrode on the light receiving surface side is electrically connected.
  • Two of the five inter-group wiring members 14 are arranged in the first non-power generation area 34a, and the remaining three are arranged in the second non-power generation area 34b.
  • Each of the five inter-group wiring members 14 extends in the x-axis direction and is electrically connected to two adjacent solar cell groups 12 via the group end wiring member 16.
  • Each is electrically connected to the inter-group wiring member 14 via the group end wiring member 16.
  • the group end wiring member 16 is arranged in the same manner as the inter-cell wiring member 18 on the light receiving surface or the back surface of the solar battery cell 10.
  • the termination wiring member 20 is connected to the first solar cell group 12a and the sixth solar cell group 12f located at both ends in the x-axis direction.
  • the termination wiring member 20 connected to the first solar cell group 12a extends in the direction of the first non-power generation region 34a from the light receiving surface side of the eleventh solar cell 10aa.
  • a pair of positive and negative lead wires 30 are connected to the termination wiring member 20 by a conductive adhesive such as solder. Therefore, one lead-out wiring 30 is electrically connected to the first solar cell group 12a via one termination wiring member 20, and another lead-out wiring 30 is connected to the first solar cell group 12a via another termination wiring member 20. 6 is electrically connected to the solar cell group 12f.
  • One extraction wiring 30 extends in the positive direction of the x-axis from the position where it is soldered to the termination wiring member 20.
  • the first output wiring 32 a is connected to the end opposite to the position where the terminal wiring material 20 is soldered.
  • Another lead-out wiring 30 extends in the negative direction of the x axis from a position where it is solder-connected to the termination wiring member 20.
  • a fourth output wiring 32 d is connected to the end opposite to the position where the terminal wiring material 20 is soldered.
  • the second output wiring 32b and the third output wiring 32c are electrically connected to the inter-group wiring member 14 disposed in the first non-power generation region 34a.
  • the four output wirings 32 are drawn from the outer edge portion 112 to the outside of the solar cell panel 110.
  • FIG. 3 is a cross-sectional view of the solar cell panel 110 and a cross-sectional view taken along the line A-A ′ of FIG.
  • the solar battery panel 110 includes an eleventh solar battery cell 10aa, a twelfth solar battery cell 10ab, a thirteenth solar battery cell 10ac, a fourteenth solar battery cell 10ad, an inter-group wiring member 14, and a group end.
  • a sealing member 42a and a second sealing member 42b are included.
  • the upper side of FIG. 3 corresponds to the light receiving surface side, and the lower side corresponds to the back side.
  • the 1st protection member 40a is arrange
  • the first protective member 40a is made of a light-transmitting and water-blocking glass, a light-transmitting plastic, or the like, and is formed in a rectangular plate shape. Here, glass is used as an example.
  • the 1st sealing member 42a is laminated
  • the 1st sealing member 42a is arrange
  • the first sealing member 42a for example, a thermoplastic resin such as a resin film of polyolefin, EVA (ethylene vinyl acetate copolymer), PVB (polyvinyl butyral), polyimide, or the like is used. A thermosetting resin may be used.
  • the first sealing member 42a is formed of a rectangular sheet material having translucency and having a surface having substantially the same dimensions as the xy plane of the first protection member 40a.
  • the second sealing member 42b is laminated on the back side of the first sealing member 42a.
  • the second sealing member 42b seals the plurality of solar cells 10, the inter-cell wiring member 18 and the like with the first sealing member 42a.
  • the same thing as the 1st sealing member 42a can be used for the 2nd sealing member 42b.
  • the second sealing member 42b may be integrated with the first sealing member 42a by heating in the laminating / curing process.
  • the second protective member 40b is laminated on the back side of the second sealing member 42b.
  • the 2nd protection member 40b protects the back surface side of the solar cell panel 110 as a back sheet.
  • the 2nd protection member 40b the thing similar to the 1st protection member 40a can be used. Here, it is assumed that glass is used.
  • a resin film such as PET (polyethylene terephthalate) or a laminated film having a structure in which an Al foil is sandwiched between resin films may be used.
  • an Al frame frame may be attached around the solar cell panel 110.
  • FIG. 4 is an exploded perspective view showing the configuration of the terminal box 200.
  • the terminal box 200 includes a main body 220, a lid body 222, and a rib portion 224.
  • the main body 220 has a box shape that is long in the x-axis direction.
  • the xy plane disposed on the positive direction side of the z axis is referred to as an upper surface 246, and the xy plane disposed on the negative direction side of the z axis is referred to as a lower surface 248.
  • the zx plane disposed on the negative direction side of the y-axis is called a side surface 234.
  • the upper surface 246 has an opening 228, and a hollow portion 226 is disposed inside the main body 220 through the opening 228.
  • a first insertion hole 232a, a second insertion hole 232b, a third insertion hole 232c, and a fourth insertion hole 232d are arranged side by side in the x-axis direction.
  • the first insertion hole 232a, the second insertion hole 232b, the third insertion hole 232c, and the fourth insertion hole 232d are collectively referred to as the insertion hole 232.
  • Each insertion hole 232 penetrates the side surface 234 in the y-axis direction, and an output wiring 32 (not shown) is inserted from the negative direction side of the y-axis to the positive direction side.
  • the first output wiring 32a is inserted into the first insertion hole 232a
  • the second output wiring 32b is inserted into the second insertion hole 232b
  • the third output wiring 32c is inserted into the third insertion hole 232c.
  • the fourth output wiring 32d is inserted into the fourth insertion hole 232d.
  • a first cable through hole 230a is arranged on the side surface of the yz plane on the negative direction side of the x axis.
  • the first cable through hole 230a passes through the side surface in the x-axis direction and passes the first external output cable 210a.
  • the second cable through hole 230b is disposed on the side surface, which is the yz plane on the positive direction side of the x axis.
  • the second cable through-hole 230b passes through the side surface in the x-axis direction and passes the second external output cable 210b.
  • the first cable through hole 230 a and the second cable through hole 230 b are collectively referred to as a cable through hole 230.
  • the lid 222 has a wide rectangular plate shape in the xy plane.
  • the opening lid surface 238 is disposed on the positive side of the y axis, and the second facing surface 240 is disposed on the negative direction side of the y axis with respect to the opening lid surface 238.
  • the opening lid surface 238 closes the opening 228 when the lid 222 is attached to the main body 220.
  • the portion of the lid 222 that includes the second facing surface 240 protrudes from the side surface 234 to the negative direction side of the y-axis.
  • the rib portion 224 faces the lid 222 on the negative direction side of the y-axis and the negative direction side of the z-axis of the main body 220, that is, on the negative direction side of the y-axis that is the same direction as the lid 222 on the lower surface 248. Protruding.
  • the rib portion 224 has a wide rectangular plate shape in the xy plane, and is formed integrally with the main body 220, for example.
  • the first facing surface 236 is disposed on the surface of the rib portion 224 on the positive side of the z axis, and the first facing surface 236 faces the second facing surface 240 of the lid 222.
  • a groove structure is formed by the first opposing surface 236 of the rib portion 224, the side surface 234 of the main body 220, and the second opposing surface 240 of the lid 222.
  • the groove structure extends in the x-axis direction and sandwiches the outer edge portion 112 of the solar cell panel 110 as shown in FIG.
  • the solar cell panel 110 is fixed to the first opposing surface 236 of the rib portion 224 and the second opposing surface 240 of the lid 222 by applying an adhesive such as a silicone adhesive to each other.
  • an adhesive such as a silicone adhesive
  • FIG. 5 shows a circuit configuration arranged in the hollow portion 226 of the main body 220. This is a configuration in which the main body 220 is viewed from the upper surface 246 side when the lid 222 is removed. An opening 228 is disposed in the central portion of the upper surface 246 of the main body 220, and a hollow portion 226 is disposed through the opening 228.
  • the hollow portion 226 includes a first terminal plate 250a, a second terminal plate 250b, a third terminal plate 250c, a fourth terminal plate 250d, which are collectively referred to as a terminal plate 250, and a first bypass diode 252a, which is collectively referred to as a bypass diode 252,
  • the second bypass diode 252b, the third bypass diode 252c, and the first solder 254a, the second solder 254b, the third solder 254c, and the fourth solder 254d, which are collectively referred to as solder 254, are included.
  • the main body 220 is provided with the cable through hole 230 and the insertion hole 232 as described above.
  • the first external output cable 210a is passed through the first cable through hole 230a
  • the second external output cable 210b is passed through the second cable through hole 230b.
  • the first output wiring 32a to the fourth output wiring 32d are passed through the first insertion hole 232a to the fourth insertion hole 232d, respectively.
  • the first output wiring 32a to the fourth output wiring 32d are connected on a one-to-one basis from the first terminal board 250a to the fourth terminal board 250d. More specifically, the first output wiring 32a is connected to the first terminal board 250a by the first solder 254a, and the second output wiring 32b is connected to the second terminal board 250b by the second solder 254b.
  • the third output wiring 32c is connected to the third terminal board 250c by the third solder 254c, and the fourth output wiring 32d is connected to the fourth terminal board 250d by the fourth solder 254d.
  • the output wiring 32 is required not to have a silicone adhesive.
  • the first terminal plate 250a to the fourth terminal plate 250d are arranged in one direction along the x-axis.
  • the first external output cable 210a is connected to the first terminal board 250a, and the second external output cable 210b is connected to the fourth terminal board 250d. That is, the two external output cables 210 are connected to the terminal plates 250 at both ends of the plurality of terminal plates 250.
  • the first bypass diode 252a, the second bypass diode 252b, and the third bypass diode 252c are attached between two adjacent terminal plates 250. Specifically, the first bypass diode 252a is attached between the first terminal plate 250a and the second terminal plate 250b.
  • a second bypass diode 252b is attached between the second terminal plate 250b and the third terminal plate 250c, and a third bypass diode 252c is attached between the third terminal plate 250c and the fourth terminal plate 250d.
  • the manufacturing method of the solar cell module 100 is demonstrated.
  • (1) manufacture of the solar cell panel 110 and (2) attachment of the terminal box 200 to the solar cell panel 110 will be described in this order.
  • (1) Manufacture of Solar Cell Panel 110 First, from the positive direction of the z axis toward the negative direction, the first protective member 40a, the first sealing member 42a, the solar battery cell 10 and the like, the second sealing member 42b, The two protective members 40b are sequentially stacked to generate a stacked body. Following this, a laminate curing process is performed on the laminate. In this step, air is extracted from the laminated body, and heated and pressurized to integrate the laminated body. In vacuum laminating in the laminating and curing process, the temperature is set to about 50 to 140 ° C. as described above.
  • FIGS. 6A to 6E are cross-sectional views in the y-axis direction showing the manufacturing procedure of the solar cell module 100.
  • FIG. Hereinafter, in order to clarify the drawing, the terminal plate 250 and the like disposed in the hollow portion 226 are omitted.
  • the silicone adhesive 260 is applied to the first facing surface 236 of the rib portion 224, that is, the portion that should face the lid 222, with the lid 222 removed from the terminal box 200.
  • a double-sided tape may be used as an adhesive instead of the silicone adhesive 260.
  • the solar cell panel 110 is brought closer to the main body 220 while the outer edge portion 112 is directed toward the positive direction side of the y-axis from the negative direction side of the y-axis and the positive direction side of the z-axis.
  • the output wiring 32 of the solar cell panel 110 is inserted into the insertion hole 232 of the side surface 234 from the negative direction side of the y axis to the positive direction side.
  • the tip end of the output wiring 32 is disposed in the hollow portion 226.
  • the back surface of the solar cell panel 110 is bonded to the first facing surface 236 of the rib portion 224 while aligning the outer edge portion 112 of the solar cell panel 110 with the side surface 234.
  • the back surface of the solar cell panel 110 and the first facing surface 236 are bonded by the silicone adhesive material 260.
  • the output wiring 32 disposed in the hollow portion 226 is connected to the terminal plate 250 (not shown) by solder 254. Therefore, the inside of the hollow part 226 is configured as shown in FIG.
  • the potting material 262 is injected into the hollow portion 226 in such a state.
  • the potting material 262 is used as a sealing material in order to improve the waterproof performance in the hollow portion 226.
  • the silicone adhesive 264 is applied to the second facing surface 240 of the lid 222, that is, the portion that should face the rib portion 224.
  • the lid 222 is attached to the main body 220 so that the opening 228 of the main body 220 is closed by the opening lid surface 238 of the lid 222.
  • the light receiving surface of the solar cell panel 110 is bonded to the second facing surface 240 of the lid 222.
  • the light receiving surface of the solar cell panel 110 and the second facing surface 240 are bonded by the silicone adhesive 264.
  • the outer edge 112 of the solar cell panel 110 can be held by the lid 222, the side surface 234, and the rib portion 224, so that the adhesive can be applied to the lid 222 and the rib portion 224.
  • the adhesive since the adhesive is applied to the lid 222 and the rib portion 224, the adhesion area between the terminal box 200 and the solar cell panel 110 can be increased. Further, since the bonding area between the terminal box 200 and the solar cell panel 110 is increased, the fixing strength can be improved when the terminal box 200 is fixed to the outer edge portion 112 of the solar cell panel 110.
  • the adhesive since the adhesive is applied to the lid 222 and the rib portion 224, the adhesive can also be applied near the insertion hole 232. Further, since the adhesive material is applied to the lid 222 and the rib portion 224, adhesion of the adhesive material to the output wiring 32 can be prevented.
  • the terminal box 200 can be easily fixed to the solar cell panel 110.
  • the main body 220 and the lid body 222 are combined after the adhesive material is applied to each of the rib portion 224 and the lid body 222, the main body 220 and the lid body 222 are not inserted along the solar cell panel 110. The adhesion of the adhesive to the output wiring 32 can be prevented.
  • the terminal box 200 is fixed to the solar cell panel 110 in this way, the solar cell module 100 can be easily manufactured.
  • the terminal box 200 has a main body 220 having an opening 228 in the upper surface 246 and an insertion hole 232 in the side surface 234 into which the output wiring 32 from the solar cell panel 110 is inserted, and the opening 228.
  • the lid 222 is closed and protrudes from the side surface 234, and the lower surface 248 of the main body 220 is provided with a rib portion 224 that protrudes in the same direction as the lid 222.
  • the outer edge portion 112 of the solar cell panel 110 can be sandwiched by the lid body 222, the side surface 234, and the rib portion 224.
  • This solar cell module 100 includes a solar cell panel 110 and a terminal box 200 fixed to the outer edge portion 112 of the solar cell panel 110.
  • the terminal box 200 has an opening 228 on the upper surface 246 and closes the main body 220 having an insertion hole 232 in the side surface 234 into which the output wiring 32 from the solar cell panel 110 is inserted, and the opening 228, and from the side surface 234.
  • a protruding lid 222 and a rib portion 224 protruding on the lower surface 248 of the main body 220 while facing the same direction as the lid 222 are provided.
  • the outer edge 112 of the solar cell panel 110 is sandwiched between the lid 222, the side surface 234, and the rib portion 224, and an adhesive is disposed on the facing portions of the lid 222 and the rib portion 224.
  • Still another aspect of the present invention is a method for manufacturing the solar cell module 100.
  • This method has an opening 228 in the upper surface 246 and closes the main body 220 having an insertion hole 232 in the side surface 234 into which the output wiring 32 from the solar cell panel 110 is inserted, and the opening 228 and protrudes from the side surface 234.
  • the lid on the rib 224 A step of applying an adhesive to a portion to be opposed to the body 222; inserting the output wiring 32 into the insertion hole 232; and aligning the outer edge portion 112 of the solar cell panel 110 with the side surface 234, and the solar cell panel on the rib portion 224 110 is bonded, and an adhesive is applied to a portion of the lid 222 that should face the rib portion 224.
  • Example 2 is similar to Example 1, and relates to a solar cell module in which a terminal box is fixed to the outer edge portion of the solar cell panel. Also in Example 2, in order to solve the shortage of the fixing strength due to the lack of the bonding area of the silicone adhesive, the silicone adhesive is applied to the first opposing surface of the rib portion and the second opposing surface of the lid, and between these The light-receiving surface side and the back surface side of the solar cell panel are sandwiched. In Example 1, the lid is attached to the main body after the silicone adhesive is applied to the second facing surface of the lid. On the other hand, in Example 2, the silicone adhesive is applied to the second opposing surface of the lid after the lid is attached to the main body.
  • the solar cell module 100 according to Example 2 is the same type as that shown in FIG. 1, and the solar cell panel 110 according to Example 2 is the same type as that shown in FIGS. Below, it demonstrates focusing on a difference.
  • FIG. 7 is an exploded perspective view showing the configuration of the terminal box 200 according to the second embodiment of the present invention. 7 is shown similarly to FIG. 4, and the main body 220 and the rib portion 224 are configured similarly to FIG.
  • the lid 222 has a wide rectangular plate shape on the xy plane, and an opening lid surface 238 is disposed on the positive side of the y-axis on the surface of the lid 222 on the negative side of the z-axis.
  • the second facing surface 240 is disposed on the negative direction side of the y-axis with respect to the surface 238.
  • the portion of the lid 222 including the second facing surface 240 that is, the portion facing the rib portion 224 protrudes from the side surface 234 to the negative side of the y-axis, and has one or more through holes for adhesives 242.
  • the first adhesive material through hole 242a, the second adhesive material through hole 242b, the third adhesive material through hole 242c, and the fourth adhesive material through hole 242d are arranged in the x-axis direction. These are collectively referred to as an adhesive through hole 242.
  • the number of the adhesive through holes 242 is not limited to “4”.
  • the adhesive through-hole 242 passes through the lid 222 in the z-axis direction.
  • FIGS. 8A to 8F are cross-sectional views in the y-axis direction showing the manufacturing procedure of the solar cell module 100 according to Example 2 of the present invention. Also here, for the sake of clarity, the terminal plate 250 and the like disposed in the hollow portion 226 are omitted. 8 (a)-(c) are the same as FIGS. 6 (a)-(c) and will not be described here.
  • the opening lid surface 238 of the lid 222 is aligned with the opening 228 of the main body 220.
  • an adhesive through hole 242 is disposed on the second facing surface 240.
  • the silicone adhesive 264 is not applied to the second facing surface 240.
  • the lid 222 is attached to the main body 220 so that the opening 228 of the main body 220 is closed by the opening lid surface 238 of the lid 222.
  • the silicone adhesive 264 is not applied to the second facing surface 240.
  • a double-sided tape may be adhered to the second facing surface 240, whereby the light receiving surface of the solar cell panel 110 is temporarily fixed to the second facing surface 240 of the lid 222.
  • the silicone adhesive 264 is injected from the adhesive through hole 242 in the negative z-axis direction.
  • the injected silicone adhesive 264 is disposed between the second facing surface 240 of the lid 222 and the light receiving surface of the solar cell panel 110 and bonds them together.
  • the light receiving surface of the solar cell panel 110 is bonded to the second facing surface 240 of the lid 222.
  • the silicone adhesive 264 enters the gap between the solar cell panel 110 and the side surface 234 and bonds them together.
  • the space between the solar cell panel 110 and the side surface 234 may be configured as shown in FIG.
  • the adhesive material through-hole 242 is provided in the second facing surface 240 of the lid 222, the main body 220 and the lid 222 are combined with the solar cell panel 110 interposed therebetween, and then the adhesive The silicone adhesive 264 can be injected through the through-hole 242 for use.
  • the silicone adhesive 264 is injected through the adhesive through-hole 242 after the main body 220 and the lid 222 are combined while the solar battery panel 110 is sandwiched, the manufacture of the solar battery module 100 can be simplified. .
  • the outline of this example is as follows.
  • the lid 222 may include an adhesive through hole 242 at a portion facing the rib portion 224.
  • Example 3 is related with the solar cell module by which a terminal box is fixed to the outer edge part of a solar cell panel like the past. Also in Example 3, in order to solve the shortage of the fixing strength due to the lack of the bonding area of the silicone adhesive, the silicone adhesive is applied to the first opposing surface of the rib portion and the second opposing surface of the lid, and between these The light-receiving surface side and the back surface side of the solar cell panel are sandwiched. In this configuration, a potting material is injected into the hollow portion in order to improve waterproofness. At this time, in consideration of closing the opening with a lid, the amount of potting material to be injected is made smaller than the capacity of the hollow portion.
  • Example 3 relates to increasing the amount of potting material injected into the hollow to avoid this condition.
  • the solar cell module 100 according to Example 3 is the same type as that shown in FIG. 1, and the solar cell panel 110 according to Example 3 is the same type as that shown in FIGS. Below, it demonstrates focusing on a difference.
  • FIGS. 9A to 9E are cross-sectional views in the y-axis direction showing the manufacturing procedure of the solar cell module 100 according to Example 3 of the present invention. Also here, for the sake of clarity, the terminal plate 250 and the like disposed in the hollow portion 226 are omitted. 9 (a)-(c) are the same as FIGS. 6 (a)-(c), but the position of the opening 228 in the main body 220 is arranged closer to the positive direction side of the z-axis than before. .
  • the positive direction side end of the side surface 234 is separated from the light receiving surface of the solar cell panel 110 to the positive direction side of the z axis. Therefore, as shown in FIG. 9C, the amount of the potting material 262 injected into the hollow portion 226 increases more than before, and the height of the potting material 262 in the z-axis direction becomes higher than before.
  • FIG. 9D shows the lid 222 in the third embodiment.
  • the opening lid surface 238 and the second facing surface 240 are formed in a step shape in the z-axis direction. That is, the lid 222 has a shape in which the opening lid surface 238 protrudes toward the positive direction side of the z-axis rather than the second facing surface 240.
  • a silicone adhesive 264 is applied to the second facing surface 240 of the lid 222.
  • the lid body 222 is attached to the main body 220 so as to close the opening 228 of the main body 220 by the opening lid surface 238 of the lid body 222.
  • the light receiving surface of the solar cell panel 110 is bonded to the second facing surface 240 of the lid 222.
  • the light receiving surface of the solar cell panel 110 and the second facing surface 240 are bonded by the silicone adhesive 264.
  • FIGS. 10A to 10E are cross-sectional views in the y-axis direction showing another manufacturing procedure of the solar cell module 100 according to Example 3 of the present invention. Also here, for the sake of clarity, the terminal plate 250 and the like disposed in the hollow portion 226 are omitted. 10 (a)-(c) are the same as FIGS. 9 (a)-(c), but the amount of the potting material 262 injected into the hollow portion 226 in FIG. ) May be less. Therefore, the height of the potting material 262 in the z-axis direction is lower than that in FIG.
  • the lid 222 shown in FIG. 10 (d) has the same shape as in FIG. 9 (d). Further, a sealing material through-hole 244 that penetrates in the z-axis direction is disposed on the opening lid surface 238. A plurality of sealing material through holes 244 may be arranged side by side in the x-axis direction. In addition, a silicone adhesive 264 is applied to the second facing surface 240 of the lid 222. In FIG. 10 (e), the lid 222 is attached to the main body 220 so that the opening 228 of the main body 220 is closed by the opening lid surface 238 of the lid 222. As a result, the light receiving surface of the solar cell panel 110 is bonded to the second facing surface 240 of the lid 222.
  • the light receiving surface of the solar cell panel 110 and the second facing surface 240 are bonded by the silicone adhesive 264. Further, a potting material 262 is injected in the negative direction of the z-axis from the sealing material through hole 244. The amount of the potting material 262 in the hollow portion 226 is increased by the injected potting material 262.
  • the potting material 262 injected into the hollow portion 226 has a height in the z-axis direction. Can increase the height. Moreover, since the height of the potting material 262 injected into the hollow portion 226 in the z-axis direction is increased, the creeping distance of the terminal box 200 can be increased. Moreover, since the creepage distance of the terminal box 200 becomes long, waterproof performance can be improved.
  • the sealing material through-hole 244 is provided on the opening lid surface 238, the potting material 262 can be injected after the lid 222 is attached to the main body 220. In addition, since the potting material 262 is injected after the lid 222 is attached to the main body 220, the solar cell module 100 can be easily manufactured.
  • the portion that closes the opening 228 may protrude from the portion facing the rib portion 224 in the direction from the lower surface 248 to the upper surface 246 of the main body 220.
  • the lid 222 may include a sealing material through-hole 244 at a portion that closes the opening 228.
  • the fixing strength when the terminal box is fixed to the outer edge of the solar cell panel, the fixing strength can be improved.

Landscapes

  • Photovoltaic Devices (AREA)

Abstract

Un corps principal 220 présente une ouverture 228 dans une surface supérieure 246, et présente également, dans une surface latérale 234, des premier à quatrième trous d'insertion 232a-232d destinés à insérer un câblage de sortie provenant d'un panneau de cellules solaires. Un corps 222 de couvercle recouvre l'ouverture 228 du corps principal 220, et fait saillie à partir de la surface latérale 234. Une section 224 de nervure, qui fait partie d'une surface inférieure 248 du corps principal 220, fait saillie dans la même direction où le corps 222 de couvercle fait saillie, tout en faisant face au corps de couvercle. Une partie périphérique extérieure du panneau de cellules solaires peut être prise en sandwich au moyen du corps 222 de couvercle, de la surface latérale 234 et de la section 224 de nervure.
PCT/JP2017/018183 2016-07-05 2017-05-15 Boîte à bornes, module de cellule solaire, et procédé de fabrication d'un module de cellule solaire Ceased WO2018008258A1 (fr)

Applications Claiming Priority (2)

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JP2016-133187 2016-07-05
JP2016133187A JP6706841B2 (ja) 2016-07-05 2016-07-05 端子ボックス、太陽電池モジュール、太陽電池モジュールの製造方法

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JP7119591B2 (ja) * 2018-05-31 2022-08-17 日本ゼオン株式会社 電子モジュール及び電子モジュール群の収納方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001217449A (ja) * 2000-02-07 2001-08-10 Fuji Electric Co Ltd 太陽電池モジュール
US20080156365A1 (en) * 2006-10-25 2008-07-03 Scholz Jeremy H Edge mountable electrical connection assembly
JP2010118525A (ja) * 2008-11-13 2010-05-27 Yukita Electric Wire Co Ltd 太陽電池モジュール用端子ボックス
JP2011049218A (ja) * 2009-08-25 2011-03-10 Sanyo Electric Co Ltd 太陽電池モジュールおよびその製造方法
US20110114149A1 (en) * 2009-11-13 2011-05-19 Du Pont Apollo Limited Junction box and photovoltaic module having junction box

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001217449A (ja) * 2000-02-07 2001-08-10 Fuji Electric Co Ltd 太陽電池モジュール
US20080156365A1 (en) * 2006-10-25 2008-07-03 Scholz Jeremy H Edge mountable electrical connection assembly
JP2010118525A (ja) * 2008-11-13 2010-05-27 Yukita Electric Wire Co Ltd 太陽電池モジュール用端子ボックス
JP2011049218A (ja) * 2009-08-25 2011-03-10 Sanyo Electric Co Ltd 太陽電池モジュールおよびその製造方法
US20110114149A1 (en) * 2009-11-13 2011-05-19 Du Pont Apollo Limited Junction box and photovoltaic module having junction box

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