WO2011162381A1

WO2011162381A1 - Solar cell module and method for producing same

Info

Publication number: WO2011162381A1
Application number: PCT/JP2011/064550
Authority: WO
Inventors: 昌生幸柳
Original assignee: 三洋電機株式会社
Priority date: 2010-06-25
Filing date: 2011-06-24
Publication date: 2011-12-29

Abstract

The disclosed solar cell module is provided with a solar cell panel and a terminal box that is bonded to the solar cell panel with an adhesive agent therebetween. The terminal box contains an opening that is for the adhesive agent and that penetrates from the inside of the terminal box to the bottom surface thereof, and the adhesive agent fills the space from the inside of the terminal box to the space between the bottom surface of the terminal box and the upper surface of the solar cell panel via the opening for the adhesive agent.

Description

Solar cell module and manufacturing method thereof

The present invention relates to a solar cell module and a manufacturing method thereof, and more particularly to a solar cell module including a solar cell panel and a terminal box and a manufacturing method thereof.

Conventionally, a solar cell module including a solar cell panel and a terminal box is known. Such a solar cell module is disclosed in, for example, Japanese Patent Application Laid-Open No. 2006-148176.

JP-A-2006-148176 discloses a solar cell module in which a terminal box is bonded to a solar cell panel via an adhesive. In this Japanese Patent Application Laid-Open No. 2006-148176, after applying an adhesive to the lower surface of the terminal box, the lower surface of the terminal box applied with the adhesive is pressed against the back surface (upper surface) of the solar cell panel. The battery panel is bonded.

JP 2006-148176 A

However, in Japanese Patent Laid-Open No. 2006-148176, when it is desired to securely bond the terminal box and the solar cell panel, a large amount of adhesive is applied to the entire bottom surface of the terminal box so as to increase the bonding area. Must be applied to the box. In this case, when the terminal box is pressed against the solar cell panel, excess adhesive protrudes from the terminal box, so that the adhesive is wasted, and work to remove the protruding adhesive is required. There is a problem that the performance is lowered.

The present invention has been made to solve the above-described problems, and one object of the present invention is to suppress the waste of the adhesive and improve the workability, while improving the workability. A solar cell module capable of reliably bonding a battery panel and a method for manufacturing the solar cell module are provided.

To achieve the above object, a solar cell module according to a first aspect of the present invention includes a solar cell panel and a terminal box bonded to the solar cell panel via an adhesive, An adhesive opening penetrating from the inside of the terminal box to the lower surface is included, and an adhesive is filled between the lower surface of the terminal box and the upper surface of the solar cell panel through the adhesive opening from the inside of the terminal box.

A method for manufacturing a solar cell module according to a second aspect of the present invention includes a solar cell panel and a terminal box bonded to the solar cell panel via an adhesive, and the terminal box is formed from the inside of the terminal box. A method for manufacturing a solar cell module including an opening for bonding that penetrates to a lower surface, the step of arranging the lower surface of the terminal box on the upper surface of the solar cell panel, and a terminal from the inside of the terminal box via the bonding opening Filling an adhesive between the lower surface of the box and the upper surface of the solar cell panel.

According to the solar cell module according to the first aspect of the present invention and the method for manufacturing the solar cell module according to the second aspect, after the lower surface of the terminal box is disposed on the upper surface of the solar cell panel, the bonding opening is opened from the inside of the terminal box. An adhesive can be filled between the lower surface of the terminal box and the upper surface of the solar cell panel via the portion. As a result, the adhesive can be filled while adjusting the filling amount of the adhesive while confirming that the adhesive does not protrude outside the terminal box. An equivalent adhesion area can be secured. Moreover, since the adhesive can be filled so that the adhesive does not protrude to the outside of the terminal box, it is possible to suppress the occurrence of a work burden for removing the protruded adhesive. As a result, it is possible to reliably bond the terminal box and the solar cell panel while suppressing waste of the adhesive and improving workability.

It is a perspective view which shows the whole structure of the solar cell module by one Embodiment of this invention. It is a figure which shows the surface of the solar cell module shown in FIG. It is a figure which shows the back surface of the solar cell module shown in FIG. It is typical sectional drawing along the Y direction of the solar cell module shown in FIG. It is a perspective view which shows the terminal box by one Embodiment of this invention. It is a top view which shows the state except the cover member of the terminal box shown in FIG. It is an enlarged plan view which shows the opening part for adhesion | attachment provided in the inside of the terminal box shown in FIG. 6, and a cover part. FIG. 7 is a cross-sectional view taken along line 50-50 in FIG. FIG. 5 is a cross-sectional view taken along line 51-51 in FIG. FIG. 5 is a cross-sectional view taken along line 52-52 in FIG. It is a figure which shows the lower surface of the terminal box shown in FIG. It is a perspective view for demonstrating the process of arrange | positioning the lower surface of the terminal box by one Embodiment of this invention on the upper surface of a solar cell panel. It is a disassembled perspective view for demonstrating the process of arrange | positioning the lower surface of the terminal box by one Embodiment of this invention on the upper surface of a solar cell panel. It is an enlarged plan view for demonstrating the process of arrange | positioning the lower surface of the terminal box by one Embodiment of this invention on the upper surface of a solar cell panel. FIG. 15 is a cross-sectional view taken along line 53-53 in FIG. It is a disassembled perspective view for demonstrating the process of arrange | positioning the lower surface of the terminal box by one Embodiment of this invention on the upper surface of a solar cell panel. It is an expanded sectional view for demonstrating the process of filling an adhesive agent between the lower surface of the terminal box by one Embodiment of this invention, and the upper surface of a solar cell panel. It is sectional drawing for demonstrating the process of filling an adhesive agent between the lower surface of the terminal box by one Embodiment of this invention, and the upper surface of a solar cell panel.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, the structure of a solar cell module 1 according to an embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 1, the solar cell module 1 according to the first embodiment of the present invention is fixed to the plate-like solar cell panel 2 and the back surface (surface opposite to the light receiving surface) side of the solar cell panel 2. And a terminal box 3. As shown in FIG. 4, the solar cell panel 2 includes a surface-side cover 21 made of a transparent member such as white plate tempered glass, a weather-resistant back-side cover 22 including a resin film such as polyethylene terephthalate (PET), and a surface. A solar cell group 24 composed of a plurality of solar cells 23 arranged between the side cover 21 and the back side cover 22 and electrically connected in series, a front side cover 21 (back side cover 22), and a solar cell 23 And a metal frame 26 made of aluminum or the like. The terminal box 3 is provided to collect electricity generated in the solar cell 23 (solar cell group 24) of the solar cell panel 2. The terminal box 3 is adhered to the surface of the back surface side cover 22 of the solar cell panel 2 (hereinafter referred to as the “upper surface” of the solar cell panel 2) via an adhesive 4 (see FIGS. 7 to 11). It is fixed by. The adhesive 4 includes an adhesive resin such as a silicone resin or an epoxy resin.

2, a plurality of finger electrodes 23 a extending in the X direction are provided on the surface of the solar cell 23. Further, as shown in FIG. 3, a plurality of finger electrodes 23 b are provided on the back surface of the solar cell 23. In addition, the finger electrode 23a of one solar cell 23 and the finger electrode 23b of the other solar cell 23 among the solar cells 23 adjacent to each other are electrically connected by a conductive wire 24a made of a solder-plated copper wire or the like. It is connected. A solar cell group 24 is configured by connecting a plurality (four in the first embodiment) of solar cells 23 in series in the Y direction by the conductive wires 24a.

As shown in FIGS. 2 and 3, a plurality (six in this embodiment) of solar cell groups 24 are provided. The plurality of solar cell groups 24 are arranged in parallel to each other in the X direction. And when the column of the edge part of the arrow X1 direction in FIG. 2 is made into the 1st line, the solar cell 23 arrange | positioned at the edge part of the arrow Y1 direction side of the solar cell group 24 of the 2nd line and the 3rd line, The conductive wire 24a and the L-shaped connecting member 24b are electrically connected. The solar cells 23 arranged at the end of the fourth row and fifth row solar cell groups 24 on the arrow Y1 direction side are electrically connected by a conductive wire 24a and an L-shaped connecting member 24c. . Arranged at the end of the solar cell group 24 in the first row and the second row on the arrow Y2 direction side, on the end of the third row and fourth row solar cell group 24 on the arrow Y2 direction side. The solar cells 23 arranged and the solar cells 23 arranged at the ends of the fifth row and sixth row solar cell groups 24 on the arrow Y2 direction side are electrically connected by the conductive wires 24a and the connection members 24d, respectively. Connected. Thus, the plurality of solar cell groups 24 are electrically connected in series via the

connection members

24b, 24c, and 24d. Among the solar cell groups 24 electrically connected in series, the solar cell 23 located at the terminal (the solar cell 23 located at the end of the first row and sixth row solar cell groups 24 in the arrow Y1 direction). Are connected to L-shaped connecting

members

24e and 24f, respectively. In addition, the

connection members

24b, 24c, 24d, 24e, and 24f are electrically connected to the

finger electrodes

23a or 23b of the solar cell 23 located at the end of the solar cell group 24 in the Y direction by the conductive wires 24a. Has been.

Moreover, as shown in FIG. 4, the L-shaped connecting member 24b, connecting member 24c, connecting member 24e, and connecting member 24f are respectively connected to the outside of the solar cell panel 2 through the notches 22a of the back surface side cover 22. Has been derived. The front ends of these connecting

members

24b, 24c, 24e and 24f are electrically connected to

terminal blocks

33, 34, 35 and 36, which will be described later, in the terminal box 3.

As shown in FIG. 5 and FIG. 6, the terminal box 3 is installed inside the box-shaped resin main body 31, the resin lid member 32, and the main body 31, and the

connection members

24 b, 24 c, 24 e. And four

terminal blocks

33, 34, 35 and 36 (see FIG. 6) connected to 24f and 24f, respectively, and an external connection cable 37. The main body 31 and the lid member 32 are formed in a rectangular shape when seen in a plan view. Each of the terminal blocks 33, 34, 35 and 36 has

terminals

33a, 34a, 35a and 36a. The

terminals

33a, 34a, 35a and 36a are connected to the external connection cable 37 via the terminal blocks 33, 34, 35 and 36. The terminal blocks adjacent to each other (terminal block 33 and terminal block 34, terminal block 33 and terminal block 35, terminal block 34 and terminal block 36) are connected via

bypass diodes

38a, 38b and 38c, respectively. Yes.

Here, in the present embodiment, as shown in FIGS. 6 to 11, the bottom surface inside the main body 31 of the terminal box 3 is electrically connected to the solar cell 23 (solar cell group 24) of the solar cell panel 2. An introduction opening 310 for introducing the

connected connection members

24b, 24c, 24e and 24f into the main body 31 of the terminal box 3 is formed. The introduction opening 310 is formed so as to penetrate the bottom surface of the terminal box 3 from the upper surface to the temporary surface. Further, four introduction openings 310 are provided at predetermined intervals along the X direction so as to correspond to the four

connection members

24b, 24c, 24e, and 24f. Further, as shown in FIG. 7, the introduction opening 310 includes a slit portion 310a formed of a slit-like opening in a plan view and a connecting member insertion portion 310b formed of a rectangular-shaped opening. . The slit portion 310a and the connecting member insertion portion 310b are formed so that the ends on the arrow Y2 direction side are continuous with each other in plan view, and the X direction (through the introduction opening portion 310). (Direction perpendicular to the direction). The slit portion 310a has an opening width (width in the Y direction) W1 (see FIGS. 7 and 14) substantially the same as the thickness of the connection member 24b (24c, 24e, and 24f). Moreover, the opening width W1 of the slit part 310a is comprised so that it may become smaller than the opening width W2 of the connection member insertion part 310b. Connection members 24b (24c, 24e, and 24f) are disposed in the opening portion of the slit portion 310a. The connection member insertion portion 310b is an example of the “first opening portion” in the present invention, and the slit portion 310a is an example of the “second opening portion” in the present invention.

Also, as shown in FIGS. 6 to 10, a lid 39 is attached to the bottom surface inside the main body 31 of the terminal box 3 so as to cover the opening 310 for introduction. The lid portion 39 is made of a resin member. In addition, as shown in FIG. 6, in the lid portion 39, an injection opening 390 for injecting the adhesive 4 has a predetermined interval along the X direction at a position corresponding to the four introduction openings 310. Four are provided apart. The injection opening 390 is provided so as to penetrate from the lower surface to the upper surface of the lid 39. Further, as shown in FIGS. 6 and 7, the injection opening 390 is connected to the introduction opening 310 in a plan view with the lid 39 attached to the bottom surface inside the terminal box 3. It arrange | positions in the position corresponding to the member insertion part 310b. Further, as will be described later, the injection opening 390 is fitted with a nozzle 6 (see FIGS. 17 and 18) having a circular (conical) tip that is a device for injecting the adhesive 4. Has a circular shape. Further, the plane area of the injection opening 390 is configured to be smaller than the plane area of the introduction opening 310. Further, the diameter D (see FIG. 7) of the injection opening 390 is smaller than the width W2 of the connection member insertion part 310b of the introduction opening 310. The injection opening 390 and the introduction opening 310 constitute the “adhesion opening” of the present invention. That is, in this embodiment, four bonding openings are provided.

Further, as shown in FIGS. 6 and 7, the lid portion 39 is provided with three

notches

391b, 391c, and 391d. The

notches

391b, 391c, and 391d are provided so as to correspond to the

connection members

24b, 24c, and 24f disposed in the slit 310a, respectively. Specifically, the notch portions 391b (391c and 391d) are arranged in the slit portion 310a of the introduction opening 310 with the lid portion 39 attached to the bottom surface inside the main body portion 31 of the terminal box 3. The connecting member 24b (24c and 24f) is formed into a shape that fits.

Further, as shown in FIG. 8, a double-sided tape 5 is provided between the lower surface of the main body 31 of the terminal box 3 and the upper surface of the solar cell panel 2. The double-sided tape 5 is affixing tape for affixing the lower surface of the main body 31 of the terminal box 3 to the upper surface of the solar cell panel 2 and affixing the upper surface of the solar cell panel 2 to the lower surface of the main body 31 of the terminal box 3. It is. Further, the double-sided tape 5 is disposed so as to surround the bonding openings (the introduction opening 310 and the injection opening 390) as viewed in a plan view. Specifically, as shown by the hatched portion in FIG. 11, the double-sided tape 5 is circumferentially arranged on the peripheral edge of the lower surface of the main body 31 of the terminal box 3. The double-sided tape 5 is an example of the “seal member” in the present invention.

Further, as shown in FIGS. 7 to 11, an opening for bonding (opening opening 310 for introduction) is provided from the inside of the terminal box 3 between the lower surface of the main body 31 of the terminal box 3 and the upper surface of the solar cell panel 2. And the adhesive 4 is filled through the injection opening 390). Specifically, the adhesive 4 includes an inner surface of the injection opening 390 (see the hatched portion in FIG. 7, see FIGS. 8 and 9), a lower surface of the lid portion 39 (see FIGS. 8 to 10), The inner surface of the opening 310 for introduction (see FIGS. 8 to 10), the lower surface of the main body 31 of the terminal box 3 (see the shaded portions in FIGS. 8 to 10 and 11), and the inner surface of the double-sided tape 5 (see FIG. The space formed by the shaded portions in FIGS. 8 and 11 and the upper surface of the solar cell panel 2 (see FIGS. 8 to 10) is filled. As shown in FIGS. 8 and 9, the adhesive 4 extends from the solar cell panel 2 side of the introduction opening 310 to the inside of the terminal box 3 through the introduction opening 310 and the injection opening 390. It is filled until it rises. As shown in FIG. 10, the adhesive 4 is different from the connection member difference of the introduction opening 310 in a state where the connection members 24 b (24 c, 24 e and 24 f) are arranged in the slit part 310 a of the introduction opening 310. It is comprised so that the insertion part 310b may be filled.

Next, a method for manufacturing the solar cell module 1 according to an embodiment of the present invention will be described with reference to FIGS.

First, a solar cell panel 2 including a front surface side cover 21, a back surface side cover 22, a solar cell group 24 including solar cells 23, a filler 25, a metal frame 26, and the like is prepared.

Connection members

24b, 24c, 24e, and 24f are led out from the back surface side cover 22 of the solar cell panel 2.

In this embodiment, first, as shown in FIG. 12, the double-sided tape 5 is affixed to the periphery of the lower surface of the main body 31 of the terminal box 3 in a circumferential shape. In this state, it arrange | positions so that the lower surface of the main-body part 31 of the terminal box 3 may be made to oppose the upper surface of the solar cell panel 2. FIG. Then, as shown in FIG. 13, the

connection members

24 b, 24 c, 24 e and 24 f are inserted into the introduction opening 310. At this time, as shown in FIGS. 14 and 15, first, the connection member 24b (24c, 24e, and 24f) is inserted into the connection member insertion portion 310b of the introduction opening 310, and then the connection member 24b in the arrow A direction. (24c, 24e and 24f) are slid to move to the slit portion 310a of the introduction opening 310.

Then, the terminal box 3 and the solar cell panel 2 are temporarily fixed by the adhesive force of the double-sided tape 5 by pressing the lower surface of the main body 31 of the terminal box 3 against the upper surface of the solar cell panel 2. And as shown in FIG. 16, the cover part 39 is attached inside the main-body part 31 of the terminal box 3 so that the opening part 310 for introduction may be covered. At this time, the connecting member 24b (24c and 24f) disposed in the slit portion 310a of the introduction opening 310 is fitted into the notch portion 391b (391c and 391d) of the lid portion 39.

Then, as shown in FIGS. 17 and 18, the tip of the nozzle 6 of the instrument for injecting the adhesive 4 into the injection opening 390 of the lid 39 is inserted so as to completely block the injection opening 390. To do. Then, the adhesive 4 is filled between the lower surface of the terminal box 3 and the upper surface of the solar cell panel 2 from the inside of the terminal box 3 via the bonding openings (injection opening 390 and introduction opening 310). . Specifically, from the tip of the nozzle 6 of the instrument for injecting the adhesive 4, the inner surface of the injection opening 390, the lower surface of the lid 39, the inner surface of the introduction opening 310, and the terminal box The adhesive 4 is injected into a space formed by the lower surface of the main body 31, the inner surface of the double-sided tape 5, and the upper surface of the solar cell panel 2. The operation of injecting the adhesive 4 is performed until the adhesive 4 rises from the injection opening 390 to the inside of the terminal box 3 (see FIGS. 8 and 9).

Thereafter, each of the terminals 33a to 36a of the terminal blocks 33 to 36 of the terminal box 3 and the tips of the connecting

members

24b, 24c, 24e and 24f introduced into the terminal box 3 are electrically connected by soldering. Connecting. And the adhesive agent 4 is hardened by leaving it to stand for a predetermined period. Thereby, the terminal box 3 and the solar cell panel 2 are fixed, and the solar cell module 1 is completed.

In the present embodiment, as described above, by providing the terminal box 3 with the bonding openings (the introduction opening 310 and the injection opening 390) penetrating from the inside of the terminal box 3 to the lower surface, After the lower surface is arranged on the upper surface of the solar cell panel 2, the lower surface of the terminal box 3 and the solar cell panel 2 are connected from the inside of the terminal box 3 through the bonding openings (introduction opening 310 and injection opening 390). The adhesive 4 can be filled between the upper surface. Accordingly, the adhesive 4 can be filled while adjusting the filling amount of the adhesive 4 while confirming that the adhesive 4 does not protrude outside the terminal box 3, and therefore, a smaller amount of adhesive than in the prior art. 4, it is possible to ensure a bonding area equivalent to the conventional one. In addition, since the adhesive 4 can be filled so that the adhesive 4 does not protrude, it is possible to suppress the occurrence of a work burden for removing the protruded adhesive 4. As a result, it is possible to reliably bond the terminal box 3 and the solar cell panel 2 while suppressing waste of the adhesive 4 and improving workability.

In the present embodiment, as described above, the introduction opening for introducing the

connection members

24b, 24c, 24e, and 24f electrically connected to the solar cell 23 of the solar cell panel 2 into the terminal box 2. The bonding opening is configured to include 310. Thereby, unlike the case where the introduction opening 310 is provided separately from the bonding opening, it is possible to prevent the structure of the terminal box 3 from becoming complicated.

In the present embodiment, as described above, the lid 39 provided to cover the introduction opening 310 is provided in the terminal box 3, and the injection opening 390 for injecting the adhesive 4 is provided as the lid. 39 is provided so as to penetrate from the lower surface to the upper surface, and the opening for introduction 310 and the opening for injection 390 constitute an opening for bonding. Thus, even when the introduction opening 310 is large, the introduction opening 310 is covered with the lid 39 provided with the injection opening 390 set to an appropriate size to match the size of the nozzle 6. Thus, the adhesive 4 can be prevented from overflowing from the bonding openings (the introduction opening 310 and the injection opening 390). Thereby, the adhesive 4 can be easily filled between the lower surface of the terminal box 3 and the upper surface of the solar cell panel 2 via the bonding openings (the introduction opening 310 and the injection opening 390). .

In this embodiment, as described above, the plane area of the injection opening 390 is made smaller than the plane area of the introduction opening 310. Thus, by covering the introduction opening 310 with the lid 39, the adhesive 4 can be easily prevented from overflowing from the bonding openings (the introduction opening 310 and the injection opening 390). As a result, the adhesive 4 can be more easily filled between the lower surface of the terminal box 3 and the upper surface of the solar cell panel 2 through the bonding openings (the introduction opening 310 and the injection opening 390). it can.

In the present embodiment, as described above, the injection opening 390 is formed to have a circular shape when seen in a plan view. Thereby, when inject | pouring the adhesive agent 4 using the nozzle 6 which has a circular (conical shape) front-end | tip part, since the nozzle 6 can be easily inserted in the opening part 390 for injection, workability | operativity is improved. Can be made.

Further, in the present embodiment, as described above, the introduction opening 310 is configured by the connection member insertion portion 310b and the slit portion 310a having an opening width smaller than the opening width of the connection member insertion portion 310b. The connecting member insertion portion 310b is filled with the adhesive 4 in a state where the connecting

members

24b, 24c, 24e, and 24f are arranged in the slit portion 310a. Thus, when the adhesive 4 is filled through the bonding opening (connecting member insertion portion 310b), the connecting

members

24b, 24c, 24e, and 24f can be arranged in the slit portion 310a. That is, since the

connection members

24b, 24c, 24e, and 24f can be prevented from hindering the filling of the adhesive 4, the adhesive 4 can be easily filled through the bonding opening (connecting member insertion portion 310b). can do.

In the present embodiment, as described above, the connection member insertion portion 310b and the slit portion 310a are formed so as to be continuous with each other, and also in a direction (X direction) orthogonal to the penetration direction of the introduction opening 310. To extend. If the connection member insertion portion 310b and the slit portion 310a are formed in this way, the

connection members

24b, 24c, 24e, and 24f inserted into the connection member insertion portion 310b can be easily slid to the slit portion 310a. .

In the present embodiment, as described above, the

notch portions

391b, 391c, and 391d are provided in the lid portion 39 so as to correspond to the

connection members

24b, 24c, and 24f arranged in the slit portion 310a. Thus, when the adhesive 4 is injected, the

connection members

24b, 24c and 24f are arranged in the

notches

391b, 391c and 391d, so that the adhesive is not obstructed by the

connection members

24b, 24c and 24f. Since the injection | pouring operation | work of 4 can be performed, workability | operativity can be improved.

In the present embodiment, as described above, the

connection members

24b, 24c, and 24f disposed in the slit portion 310a of the introduction opening 310 are fitted in the state where the lid portion 39 covers the introduction opening 310.

Cutout portions

391b, 391c, and 391d are formed in a shape to be inserted. If the

notches

391b, 391c, and 391d are formed in this way, the connecting

members

24b, 24c, and 24f are fitted and fixed to the

notches

391b, 391c, and 391d when the adhesive 4 is injected. Therefore, workability can be further improved.

In the present embodiment, as described above, the lid 39 covers the introduction opening 310, and the

connection members

24b, 24c, and 24f are fitted into the

notches

391b, 391c, and 391d. The injection opening 390 is disposed at a position corresponding to the connection member insertion part 310b of the introduction opening 310. If the injection opening 390 is arranged in this manner, the adhesive 4 is passed through the injection opening 390, unlike the case where the injection opening 390 is arranged at a position corresponding to the slit 310a of the introduction opening 310. Therefore, workability can be further improved.

Further, in the present embodiment, as described above, the lower surface of the terminal box 3 and the upper surface of the solar cell panel 2 so as to surround the bonding openings (the introduction opening 310 and the injection opening 390) in plan view. A double-sided tape 5 is provided between the two. Thereby, since the interface between the terminal box 3 and the solar cell panel 2 can be sealed by the double-sided tape 5, the adhesive 4 is passed through the bonding openings (the opening 310 for introduction and the opening 390 for injection). When filling, it can suppress more reliably that the adhesive agent 4 protrudes from the terminal box 3. FIG. As a result, waste of the adhesive 4 can be further suppressed. In addition, since the adhesive 4 can be more reliably suppressed from protruding from the terminal box 3 by the double-sided tape 5, the work load for removing the protruding adhesive 4 is more reliably suppressed. Can do. Thereby, workability | operativity can be improved more.

In the present embodiment, as described above, the double-sided tape 5 is a tape for application. If comprised in this way, it can suppress that arrangement | positioning of the terminal box 3 on the solar cell panel 2 shifts | deviates by the adhesive force of the tape for sticking. As a result, the adhesive 4 can be easily filled between the lower surface of the terminal box 3 and the upper surface of the solar cell panel 2 through the bonding openings (the introduction opening 310 and the injection opening 390). .

In the present embodiment, as described above, a plurality (four) of the bonding openings (introduction openings 310 and injection openings 390) are provided. With this configuration, unlike the case where only one bonding opening (introduction opening 310 and injection opening 390) is provided, the bonding opening (introduction opening 310 and injection opening) is provided. Since the plurality of (four) portions 390) are provided, the adhesive 4 can be efficiently filled between the lower surface of the terminal box 3 and the upper surface of the solar cell panel 2.

In the present embodiment, as described above, the bonding openings (the introduction openings 310 and the injection openings) from the solar cell panel 2 side of the bonding openings (the introduction openings 310 and the injection openings 390). The adhesive 4 is filled until it rises to the inner side of the terminal box 3 via the part 390). Thus, the adhesive 4 is sufficiently filled between the lower surface of the terminal box 3 and the upper surface of the solar cell panel 2 by performing the filling operation of the adhesive material 4 until the adhesive 4 rises to the inner side of the terminal box 3. can do. Further, when the adhesive 4 is filled when the adhesive 4 rises to the inside of the terminal box 3, the amount of the adhesive 4 can be appropriately managed so as to be constant.

In addition, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

For example, in the above-described embodiment, an example in which an opening formed by an introduction opening and an injection opening is used as the bonding opening of the present invention is shown, but the present invention is not limited to this. For example, as the bonding opening of the present invention, an opening provided separately from the introduction opening and the injection opening so as to penetrate from the inside of the terminal box to the bottom surface may be used.

In the above-described embodiment, the configuration in which the lid for covering the introduction opening is provided is shown, but the present invention is not limited to this. In the present invention, it is not necessary to provide a lid that covers the introduction opening.

In the above embodiment, the configuration in which the sealing member is provided so as to surround the bonding opening between the lower surface of the terminal box and the upper surface of the solar cell panel is shown, but the present invention is not limited thereto. In the present invention, the seal member may not be provided.

In the above embodiment, the example in which the double-sided tape is used as the sealing member of the present invention is shown, but the present invention is not limited to this. For example, an adhesive member (such as a single-sided tape) other than a double-sided tape may be used as the seal member of the present invention, or a non-adhesive member (such as a sponge) may be used.

In the above embodiment, an example in which four bonding openings are provided has been described, but the present invention is not limited to this. In the present invention, the number of bonding openings may be 3 or less, or 5 or more.

Claims

A solar panel,
A terminal box adhered to the solar cell panel via an adhesive;
The terminal box includes an adhesive opening penetrating from the inside to the lower surface of the terminal box,
The solar cell module in which the adhesive is filled between the lower surface of the terminal box and the upper surface of the solar cell panel from the inside of the terminal box through the bonding opening.
The solar cell module according to claim 1, wherein the bonding opening includes an introduction opening for introducing a connection member electrically connected to the solar cell panel into the terminal box.
The terminal box includes a lid provided so as to cover the introduction opening,
The lid portion is provided so as to penetrate from the lower surface to the upper surface of the lid portion, and has an injection opening for injecting the adhesive,
The solar cell module according to claim 2, wherein the bonding opening is configured by the introduction opening and the injection opening.
The solar cell module according to claim 3, wherein a plane area of the injection opening is smaller than a plane area of the introduction opening.
The solar cell module according to claim 3, wherein the injection opening is formed to have a circular shape when seen in a plan view.
The introduction opening is composed of a first opening portion and a second opening portion having an opening width smaller than the opening width of the first opening portion,
The solar cell module according to claim 2, wherein the adhesive is filled in the first opening portion in a state where the connection member is disposed in the second opening portion.
The first opening portion and the second opening portion are formed so as to be continuous with each other, and are formed so as to extend in a direction orthogonal to a penetrating direction of the bonding opening. 6. The solar cell module according to 6.
The terminal box includes a lid provided so as to cover the introduction opening,
The solar cell module according to claim 6, wherein the lid portion has a notch portion provided so as to correspond to the connection member disposed in the second opening portion of the introduction opening portion.
The cutout portion is formed in a shape such that the connection member disposed in the second opening portion of the introduction opening portion fits in the state where the lid portion covers the introduction opening portion. The solar cell module according to claim 7.
The lid portion is provided so as to penetrate from the lower surface to the upper surface of the lid portion, and has an injection opening for injecting the adhesive,
The injection opening is a state in which the lid portion covers the introduction opening and the connection member is fitted into the notch, the first opening of the introduction opening. The solar cell module according to claim 9, wherein the solar cell module is disposed at a position corresponding to the opening portion of.
The solar cell module according to claim 1, further comprising a seal member provided between a lower surface of the terminal box and an upper surface of the solar cell panel so as to surround the bonding opening as viewed in a plan view.
The solar cell module according to claim 11, wherein the seal member is a tape for sticking.
The solar cell module according to claim 1, wherein a plurality of the bonding openings are provided.
The solar cell module according to claim 1, wherein the adhesive is filled from the side of the solar cell panel to the inside of the terminal box through the bonding opening.
A solar cell comprising a solar cell panel and a terminal box adhered to the solar cell panel via an adhesive, wherein the terminal box includes an adhesive opening penetrating from the inside to the lower surface of the terminal box. A method of manufacturing a module,
Arranging the lower surface of the terminal box on the upper surface of the solar cell panel;
The manufacturing method of a solar cell module provided with the process of filling the said adhesive agent between the lower surface of the said terminal box and the upper surface of the said solar cell panel from the inside of the said terminal box through the said opening part for adhesion | attachment.
Prior to the step of filling the adhesive, a step of introducing a connection member electrically connected to the solar cell panel into the terminal box through the introduction opening of the bonding opening. The manufacturing method of the solar cell module of Claim 15 provided.
Prior to the step of filling the adhesive, the method further comprises a step of covering the opening for introduction with a lid having an opening for injection for injecting the adhesive,
The step of filling the adhesive is performed by filling the adhesive between the lower surface of the terminal box and the upper surface of the solar cell panel from the inside of the terminal box through the injection opening and the introduction opening. The manufacturing method of the solar cell module of Claim 16 including the process to do.
The step of introducing the connection member into the terminal box through the introduction opening includes inserting the connection member into a first opening portion of the introduction opening, and the first opening portion. And moving the connecting member inserted into the second opening portion formed continuously with the first opening portion and having an opening width smaller than the opening width of the first opening portion. ,
The solar cell according to claim 16, wherein the step of filling the adhesive includes a step of filling the first opening portion with the adhesive in a state where the connection member is moved to the second opening portion. Module manufacturing method.
Prior to the step of filling the adhesive, the method further comprises a step of providing a seal member that surrounds the bonding opening portion in a plan view between the lower surface of the terminal box and the upper surface of the solar cell panel. Item 16. A method for producing a solar cell module according to Item 15.
The step of filling the adhesive includes a step of filling the adhesive so as to rise from the solar cell panel side of the bonding opening to the inner side of the terminal box through the bonding opening. Item 16. A method for producing a solar cell module according to Item 15.