JP2016073037A - Conductive clip for grounding and solar cell device employing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conductive clip for grounding which improves workability and can be used in common for solar cell devices in various shapes, and a solar cell device.SOLUTION: A conductive clip for grounding includes: a first tabular part including a first principal surface on which a first protrusion is provided, and a second principal surface which is positioned at an opposite side of the first principal surface and on which a second protrusion is provided; a second tabular part including one principal surface that is opposite to the first principal surface of the first tabular part; and a connection part connecting one side of each of the first tabular part and the second tabular part with each other. The solar cell device includes: a solar cell module including a solar cell panel and a conductive frame to which an edge of the solar cell panel is fitted; a conductive cradle to which the frame of the solar cell module is attached; and the conductive clip for grounding which is provided in either the frame of the solar cell module or the cradle. The frame of the solar cell module and the cradle are electrically connected via a first protrusion and a second protrusion of the conductive clip for grounding.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a grounding conductive clip and a solar cell device using the same.

  In the solar cell device, in order to prevent electric leakage or the like, grounding is defined by JIS. Specifically, it is stipulated that grounding work be performed on solar cell modules, mounts, connection boxes, power conditioners, and the like constituting the solar cell device. For example, in the case of a solar cell module, a ground wire is connected to the frame of each solar cell module for grounding.

  However, connecting a ground wire to each of a large number of solar cell modules has a problem that the work becomes complicated and the number of long ground wires increases and the material used increases.

  Then, when fastening a solar cell module to a metal mount, there is a method of grounding by fixing a ground member provided with a protrusion between the solar cell module and the mount. Thus, by electrically connecting the gantry and the plurality of solar cell modules, the installation can be simplified by grounding the electrically integrated gantry and the plurality of solar cell modules with a single ground wire. (See, for example, Patent Document 1 below).

JP 2010-261257 A

  However, the ground member disclosed in Patent Document 1 must be constructed by passing a number of parts through bolts when assembling the gantry. For this reason, the troublesome work of assembling a large number of parts on the unstable roof of the scaffold occurs and the number of construction steps increases.

  Moreover, since it is necessary to design the earth member in a shape suitable for the structure of various types of solar cell devices, it is difficult to share the earth member with a plurality of types of solar cell devices.

  The present invention has been made in view of the above-mentioned problems, and one of its purposes is to improve the workability and to provide a grounding conductive clip that can be used in common for solar cell devices of various structures, and the same. It is providing the solar cell apparatus using this.

  A conductive clip according to an aspect of the present invention includes a first plate having a first main surface provided with a first protrusion and a second main surface provided with a second protrusion located on the opposite side of the first main surface. A first plate-like portion, a second plate-like portion having one main surface facing the first main surface of the first plate-like portion, and one side of both the first plate-like portion and the second plate-like portion And a connecting portion for connecting.

  In addition, a solar cell device according to one embodiment of the present invention includes a solar cell module and a solar cell module having a conductive frame that fits a peripheral portion of the solar cell panel, and a conductive member to which the frame of the solar cell module is attached. And a grounding conductive clip provided on any one of the frame and the frame of the solar cell module, wherein the frame of the solar cell module and the frame are of the grounding conductive clip. It is electrically connected via the first protrusion and the second protrusion.

  According to the grounding conductive clip and the solar cell device described above, since the conductive member can be gripped between the first plate-like portion and the second plate-like portion, the grounding conductive clip is used as one work. It can be easily mounted on a solar cell module or a mount. And the conduction | electrical_connection between the electrically conductive clip for grounding and a solar cell module can be taken with the 1st protrusion provided in the 1st main surface of the 1st plate-shaped part. Further, the second protrusion provided on the second main surface of the first plate-like portion can establish electrical continuity between the grounding conductive clip and the gantry. Thereby, a solar cell module and a mount can be electrically integrated.

  Moreover, in the operation | work which installs a solar cell module in a mount frame, since it can convey and install in the state which attached the electrically conductive clip for grounding to a solar cell module, workability | operativity can be improved.

  And if the member pinched | interposed between a 1st plate-shaped part and a 2nd plate-shaped part is a plate-shaped object, the electrically conductive clip for grounding will be attached regardless of the kind of structure of a solar cell module and a mount frame. For this reason, a common thing can be used with respect to various solar cell modules and mounts, and it is possible to increase the productivity by sharing parts.

FIG. 1 is a diagram showing a solar cell device using a grounding conductive clip according to an embodiment of the present invention, FIG. 1 (a) is a perspective view showing the solar cell device, and FIG. 1 (b) is FIG. It is a disassembled perspective view which expands and shows the A section of (a). FIG. 2 is a diagram showing a solar cell module used in a solar cell device using a grounding conductive clip according to an embodiment of the present invention, and FIG. 2 (a) is a plan view of the solar cell module, and FIG. ) Is a cross-sectional view showing a cross section taken along line BB ′ of FIG. FIG. 3 is a view showing a grounding conductive clip according to an embodiment of the present invention, FIG. 3 (a) is a perspective view, and FIG. 3 (b) is a view of FIG. 3 (a) seen from the back side. It is a perspective view. FIG. 4 is a perspective view of a grounding conductive clip according to an embodiment of the present invention as viewed from an angle different from that in FIG. 3. FIG. 5 is a schematic diagram showing a state of conduction between adjacent solar cell modules in the solar cell device of one embodiment of the present invention. FIG. 6 is a view of a grounding conductive clip according to another embodiment of the present invention, and is a perspective view corresponding to FIG. FIG. 7 is a diagram showing a solar cell device using a grounding conductive clip according to an embodiment of the present invention, and FIG. 7A is an exploded perspective view showing a portion corresponding to FIG. 7 (b) is a cross-sectional view showing a state after assembly.

  Hereinafter, embodiments of a conductive clip for grounding (hereinafter also simply referred to as a conductive clip) and a solar cell device according to the present invention will be described in detail with reference to the drawings. The drawings are schematically shown, and the size and positional relationship of various structures in each drawing can be appropriately changed.

<< First Embodiment >>
<Solar cell device>
As shown to Fig.1 (a), (b), the solar cell apparatus 1 which concerns on one Embodiment of this invention is installed by using the inclined roof 2 as an installation surface, for example. The roof 2 has a folded plate 2a as a roofing material, for example. In the following, when the inclination direction of the roof 2 is regarded as the y-axis direction and the entire roof 2 (installation surface) is regarded as a plane, the normal direction to this plane is the z-axis direction, the y-axis direction, and the direction orthogonal to the z-axis direction. Is referred to as the x-axis direction. Also, the high slope side of the roof 2 is called the + y axis direction or the ridge side, the low slope side of the roof 2 is called the -y axis direction or the eaves side, and the direction from the roof 2 toward the solar cell device 1 is the + z axis direction or The upward direction is referred to as the -z-axis direction or the downward direction.

  The solar cell device 1 includes a gantry 3 installed on a roof 2, a solar cell module 10 having a rectangular outer shape in plan view fixed to the gantry 3, and a space between the gantry 3 and the solar cell module 10. And a conductive clip 20 that is electrically connected to be conductive.

  The gantry 3 includes a support member 30 and a pressing member 31 that are fixed to the roof 2. The conductive clip 20 may be provided on either the frame member 12 or the mount 3 of the solar cell module 10.

<Solar cell module>
As shown in FIGS. 1A and 1B, in the solar cell device 1, the plurality of solar cell modules 10 are arranged along both the x-axis direction and the y-axis direction. As shown in FIGS. 2A and 2B, each solar cell module 10 includes a solar cell panel 11 and a frame member 12 that reinforces the outer edge portion of the solar cell panel 11.

  In particular, as shown in FIG. 2B, the solar cell panel 11 has a first main surface 11a (one main surface of the translucent substrate 13) that mainly receives light and a back surface of the first main surface 11a. It has a corresponding second main surface 11b (one main surface of the back surface protection member 17). The solar cell panel 11 includes, in order from the first main surface 11a side, a translucent substrate 13 that also serves as a substrate of the solar cell module 10, a pair of sealing materials 14 made of a thermosetting resin, and inner leads 15. And a plurality of solar cell elements 16 electrically connected.

  Furthermore, the solar cell panel 11 includes a back surface protection member 17 that protects the back surface of the solar cell module 10 and a terminal box 18 for taking out the output obtained by the solar cell element 16 to the outside.

  In addition, the 2nd main surface 11b of the solar cell panel 11 has translucency, for example, the sealing material 14 located between the solar cell element 16 and the back surface protection member 17, and the back surface protection member 17, respectively. It is possible to use a material that can receive a part of light from the second main surface 11b side.

  The solar cell element 16 is a flat substrate made of, for example, single crystal silicon or polycrystalline silicon. When such a silicon substrate is used, the adjacent silicon substrates may be electrically connected by the inner leads 15 as described above.

  Further, the type of the solar cell element 16 is not particularly limited. For example, as the solar cell element 16, a thin film solar cell made of amorphous silicon, a CIGS solar cell, a CdTe solar cell, or a solar cell element 16 in which a thin film of amorphous silicon is formed on a crystalline silicon substrate may be used. For example, as the solar cell element 16 made of amorphous silicon, CIGS, and CdTe, an element in which an amorphous silicon layer, a CIGS layer, or a CdTe layer is appropriately laminated in combination with a transparent electrode or the like on the translucent substrate 13 is used. it can.

  The terminal box 18 is, for example, a box body of modified polyphenylene ether resin (modified PPE resin) or polyphenylene oxide resin (PPO resin), a terminal plate disposed in the box body, and the electric power to the outside of the box body. Output cable.

  The frame member 12 has a function of holding the solar cell panel 11. The frame member 12 includes a fitting portion 12a into which the peripheral edge portion of the solar cell panel 11 is inserted, a frame upper surface 12b positioned on the side receiving sunlight, a frame flange portion 12c positioned on the back surface side of the frame upper surface 12b, A frame side wall portion 12d that connects the frame upper surface 12b and the frame flange portion 12c is provided. The frame flange portion 12 c is a plate-like portion that protrudes from the lower side of the frame side wall portion 12 d toward the inside of the solar cell module 10. Such a frame member 12 can be manufactured, for example, by extruding aluminum.

<Conductive clip for grounding>
Next, using FIG. 1 (a), (b), FIG. 3 (a), (b), FIG. 4 etc., the solar cell module 10 and the mount 3 are electrically connected, and both are electrically connected. The conductive clip 20 will be described in detail.

  The conductive clip 20 has a first plate-like portion 22 having a first surface 22a that is a first main surface and a second surface 22b that is a second main surface located on the back side of the first surface 22a, The second plate portion 23 having one main surface facing the first surface 22a of the one plate portion 22 is connected to one end of both the first plate portion 22 and the second plate portion 23. The connecting part 21 is provided.

  In addition, the conductive clip 20 is formed, for example, by molding a single metal plate having elasticity and conductivity into a substantially U-shaped cross section. Further, the first plate-like portion 22 and the second plate-like portion 23 of the conductive clip 20 are both substantially rectangular in plan view. The first plate-like portion 22 is a portion that conducts between the solar cell module 10 and the gantry 3. The first plate-like portion 22 and the second plate-like portion 23 can grip the frame flange portion 12 c of the solar cell module 10, for example, by elastic deformation of the conductive clip 20.

  In the following, for convenience, a portion connected to one end side of the connecting portion 21 of the first plate-like portion 22 is referred to as a first side 22c, and two sides orthogonal to the first side 22c are referred to as a second side 22d. The side located opposite to the first side 22c is referred to as a third side 22e.

  The first plate-like portion 22 may have a rectangular through hole 22 f that is substantially parallel to each side of the first plate-like portion 22. And the 1st protrusion 22i provided along the recessed part 22h provided in the 2nd edge | side 22d of the 1st plate-shaped part 22, and the peripheral part 22g of the through-hole 22f parallel to the 2nd edge | side 22d among the through-holes 22f. And a second protrusion 22j.

  Further, the first protrusion 22i and the second protrusion 22j may have a sawtooth shape including a plurality of blades, at least one of which has a sharp tip. For example, the first protrusion 22i is formed on the first surface 22a by bending a part of the first plate-like portion 22 so as to protrude toward the second plate-like portion 23. For example, the second protrusion 22j is formed on the second surface 22b by bending the first plate-like portion 22 so as to protrude in a direction opposite to the first protrusion 22i.

  The second plate-like portion 23 may have a shape that is partially bent. Hereinafter, for convenience, the side of the second plate-like portion 23 that is connected to the connection portion 21 is referred to as a fourth side 23a, two sides orthogonal to the fourth side 23a are referred to as a fifth side 23b, and the fourth side 23a. The side opposite to that is referred to as a sixth side 23c.

The second plate-like portion 23 has a bent portion 23d that is bent in the direction toward the first plate-like portion 22 in the middle between the fourth side 23a and the sixth side 23c. The bent portion 23d is provided in a linear shape substantially parallel to the fourth side 23a. The distance between the top of the bent portion 23d and the first plate-like portion 22 should be smaller than the thickness of the frame flange portion 12c of the frame member 12 inserted between the first plate-like portion 22 and the second plate-like portion 23. That's fine. In addition, the bent portion 23d narrows the interval between the one main surface of the second plate-like portion 23 and the first surface 22a of the first plate-like portion 22 as compared with the interval between other portions. Thereby, it becomes easy to insert the conductive clip 20 into the frame flange portion 12c, and the frame flange portion 12c can be reliably gripped between the first plate-like portion 22 and the second plate-like portion 23.

  And the 2nd plate-shaped part 23 has the 3rd protrusion 23f formed convexly in the direction which goes to the connection part 21 by the notch part 23e provided in the vicinity of the bending part 23d. The cut portion 23e is provided in a direction from the fifth side 23b in the vicinity of the bent portion 23d to the fourth side 23a obliquely.

  For example, the connecting portion 21 is formed by bending a single plate-like body into an arc shape, one end of the first plate-like portion 22 is connected to one end thereof, and the second plate-like portion 23 is connected to the other end. One side is continuous. The curved shape of the connecting portion 21 is not limited to the arc shape, and may be angular.

  Such a conductive clip 20 can be formed, for example, by press-molding stainless steel or a conductive metal whose surface is treated with stainless steel.

<Stand>
Next, the gantry 3 for fixing the solar cell module 10 to the roof 2 will be described in detail with reference to FIGS. One solar cell module 10 is supported by six gantry 3 on two opposite sides. The gantry 3 includes a support member 30 installed on the roof 2 and a pressing member 31 that fixes the solar cell module 10 to the support member 30.

<Supporting member>
The support member 30 includes a fixed portion 30a that is fixed to the roof 2, and a placement portion 30b that is provided on the upper side of the fixed portion 30a.

  The fixing part 30 a is a part used for fixing the support member 30 to the roof 2. For example, as shown in FIG.1 (b), when the roof material of the roof 2 is the folded plate 2a, the fixing | fixed part 30a clamps the mountain part of the folded plate 2a, and is screwed to the roof 2 by it. Fixed. Moreover, the mounting part 30b is provided in the upper part of the fixing | fixed part 30a. The placement part 30b is a part that supports the frame member 12 of the solar cell module 10 from below. In the following, the surface of the mounting portion 30b that supports the solar cell module 10 is referred to as a mounting surface 30b1. Moreover, the mounting surface 30b1 has a first through hole 30b2 for inserting a threaded portion 31a2 of a male screw 31a described later.

  Such a support member 30 can be formed by extruding a conductive metal such as an aluminum alloy, for example.

<Pressing member>
The pressing member 31 is a member for pressing and fixing the solar cell module 10 to the support portion 30. The pressing member 31 includes a male screw 31a, a female screw 31b, and a stopper 31c. The stopper 31c is fixed to the support member 30 using a male screw 31a and a female screw 31b.

  The stopper 31c includes two side surface portions 31c1 perpendicular to the mounting surface 30b1 of the support member 30, a pressing portion 31c2 protruding above the side surface portion 31c1 in parallel with the mounting surface 30b1, and a pressing portion. A flat plate portion 31c3 provided between the side surface portions 31c1 opposed to each other at a position in the −z-axis direction with respect to 31c2.

  The side surface portion 31c1 has two portions opposed to the frame side wall portions 12d of the two solar cell modules 10 when the pair of solar cell modules 10 are placed on the placement surface 30b1. The length of the side surface portion 31c1 in the z-axis direction is shorter than the length of the frame side wall portion 12d of the solar cell module 10 in the z-axis direction. The pressing portion 31c2 can fix the frame upper surface 12b of the solar cell module 10 from above by applying a pressing force between the pressing surface 31c2 and the mounting surface 30b1. Further, the flat plate portion 31c3 has a second through hole 31c4 (not shown) opposed to the first through hole 30b2 of the placement surface 30b1, and the screw portion 31a2 of the male screw 31a can be inserted therethrough.

  Such a stopper 31c can be formed by extruding a conductive metal such as an aluminum alloy.

  As the male screw 31a, for example, one having a head portion 31a1 having sides parallel to each other, such as a hexagon bolt or a square bolt, and a screw portion 31a2 can be used. When the solar cell device 1 is assembled, the head portion 31a1 of the male screw 31a is located above the flat plate portion 31c3.

  The female screw 31b is a nut combined with the male screw 31a. Specifically, the female screw 31b engages with the screw portion 31a2. For example, when the M8 thread portion 31a2 is provided on the male screw 31a, the female screw 31b can be an M8 nut. The support member 30 and the pressing member 31 are fixed by a male screw 31a and a female screw 31b that are fastened through the first through hole 30b2 and the second through hole 31c4.

  Such male screw 31a and female screw 31b can be formed using, for example, stainless steel or the like that has been subjected to surface treatment using chrome plating or zinc.

<Construction procedure>
A procedure for attaching the solar cell module 10 to the gantry 3 and performing electrical connection between the gantry 3 and the solar cell module 10 using the conductive clip 20 will be described below with reference to FIGS. 1 and 5.

  First, the conductive clip 20 is inserted into the frame flange portion 12 c of the solar cell module 10. The conductive clip 20 has the first plate-like portion 22 in the −z-axis direction so that the first plate-like portion 22 is sandwiched between the solar cell module 10 and the gantry 3 when the solar cell device 1 is assembled. The plate-like portion 23 is attached so as to be in the + z-axis direction. Next, the solar cell module 10 is placed on the placement surface 30 b 1 of the support member 30 attached to the roof 2. And the solar cell module 10 is pressed and fixed toward the support part 30 by fastening the press member 31 on the support member 30 using the male screw 31a and the female screw 31b.

  At this time, the first protrusion 22 i is pierced into the frame member 12, whereby conduction between the conductive clip 20 and the solar cell module 10 can be achieved. Further, since the second protrusion 22j is stuck in the support member 30, conduction between the conductive clip 20 and the gantry 3 can be achieved. Thereby, electrical conduction between the solar cell module 10 and the gantry 3 can be achieved via the conductive clip 20. As shown in FIG. 5, conduction can be established between the solar cell modules 10 adjacent in the y-axis direction via the gantry 3, so that a ground wire is connected to each of the plurality of electrically integrated solar cell modules 10. It becomes easy to ground with 32 or the like.

<Effect>
As described above, the conductive clip 20 has the first protrusion 22 i and the second protrusion 22 j that protrude from the first surface 22 a and the second surface 22 b of the first plate-like portion 22. Thereby, the 1st plate-shaped part 22 can be easily pinched | interposed between the solar cell module 10 and the mount frame 3, and the solar cell module 10 and the mount frame 3 can be electrically connected easily. . And electrical continuity between the plurality of solar cell modules 10 adjacent to each other via the gantry 3 can be obtained.

  In addition, the conductive clip 20 is formed of a substantially U-shaped elastic member having a first plate-like portion 22 and a second plate-like portion 23 that are continuous with the connection portion 21. Thereby, the conductive clip 20 can be easily attached to any position of the frame flange portion 12c of the solar cell module 10 without using a screw or the like. Furthermore, the solar cell module 10 can be easily transported to a construction place where the gantry 3 or the like is installed with the conductive clip 20 attached.

  Thus, according to the conductive clip 20 of the present embodiment, it is possible to easily attach the conductive clip 20 to the conductive member and increase the degree of freedom of the position where the conductive clip 20 is attached. Furthermore, since the conductive clip 20 grips the frame flange portion 12c, for example, the conductive clip 20 is attached to the solar cell module 10 in advance, so that the conductive clip 20 is not attached on the roof 2 with poor scaffolding. Thus, the work can be simplified and the number of parts assembled on the roof 2 can be reduced to improve the workability.

  Moreover, when the solar cell apparatus 1 has the frame flange part 12c of the solar cell module 10 which opposes, and the mounting part 30b of the mount frame 3, the conductive clip 20 of this embodiment is used for various types of solar cell modules 10 and Applicable to the gantry 3. Thereby, the solar cell apparatus which can make parts common and can improve productivity can be provided.

  Further, the first protrusion 22 i and the second protrusion 22 j of the conductive clip 20 may have a sawtooth shape including a plurality of blades arranged along the direction in which the conductive clip 20 is inserted into the frame flange portion 12 c of the solar cell module 10. In this case, when the conductive clip 20 is inserted, the first protrusion 22i and the second protrusion 22j are unlikely to fall down. As a result, it is possible to improve reliability by reducing the fact that the first protrusion 22i and the second protrusion 22j do not pierce the frame flange portion 12c and the placement portion 30b and cannot conduct electricity.

  Further, the first protrusion 22 i and the second protrusion 22 j of the conductive clip 20 may be provided not only on the recess 22 h but also on the peripheral edge 22 g of the through hole 22 f provided in the first plate-like part 22. As a result, by increasing the number of through-holes 22f in the first plate-like portion 22 as necessary, a large number of first protrusions 22i and second protrusions 22j can be provided and electrical conduction can be ensured, increasing reliability. Can do.

  Furthermore, the conductive clip 20 may have a third protrusion 23f that protrudes in the direction toward the connecting portion 21 in the vicinity of the bent portion 23d. Thereby, when the conductive clip 20 is attached to the frame flange portion 12c of the solar cell module 10, the third protrusion 23f acts as an upside down against the frame flange portion 12c. And it becomes difficult for the conductive clip 20 to fall off from the solar cell module 10, and works effectively when the solar cell module 10 to which the conductive clip 20 is attached is transported. Thus, the reliability of the conductive clip 20 can be increased.

<< Second Embodiment >>
As shown in FIG. 6, the conductive clip 20 of the present embodiment is different from the first embodiment in the shapes of the first plate-like portion 22, the first protrusion 22i, and the second protrusion 22j.

The first plate-like portion 22 has a bent portion 221 that is a portion bent in a direction away from the second plate-like portion 23. The first protrusion 22i and the second protrusion 22j are bent portions 22
It is provided in the first region 22k closer to the third side 22e than l. More specifically, the bent portion 22l is an intermediate position in the direction from the first side 22c of the first plate-like portion 22 to the third side 22e, and is third than the bent portion 23d of the second plate-like portion 23. On the side close to the side 22e, it is bent substantially parallel to the first side 22c. Thereby, when attaching the conductive clip 20 to the solar cell module 10, the first protrusion 22i is prevented from rubbing against the frame flange portion 12c and falling down, and the first protrusion 22i is reliably attached to the frame flange portion 12c. Sting. Thereby, the conduction | electrical_connection between the electrically conductive clip 20 and the solar cell module 10 can be taken reliably, and the reliability of the electrically conductive clip 20 can be improved.

  Further, the bent portion 22l of the first plate-like portion 22 is flatly pressed between the gantry 3 and the solar cell module 10 when the solar cell module 10 is fastened to the support member 30 by the pressing member 31. It becomes. Thereby, since the 1st protrusion 22i and the 2nd protrusion 22j pierce the solar cell module 10 and the mount frame 3, electrical conduction can be ensured reliably.

  The first protrusion 22i and the second protrusion 22j are not limited to the sawtooth shape, and may be, for example, a cylindrical protrusion provided by a burring process. It can play suitably.

<< Third Embodiment >>
As shown in FIG. 7, the solar cell device 1 of the present embodiment is different from the first embodiment and the second embodiment in the form in which the conductive clip 20 is inserted into the mount 3 and attached.

  As shown in FIG. 7B, the solar cell module 10 of the present embodiment has a short length in the y direction of the frame flange portion 12 c and is not suitable for attaching the conductive clip 20. On the other hand, the mounting surface 30b1 of the gantry 3 is a plate-like body projecting substantially parallel to the frame flange portion 12c below the frame member 12c. Such a mounting surface 30b1 is referred to as a third plate-like body. Therefore, even if the conductive clip 20 is attached to the mounting surface 30b1 of the gantry 3 instead of the frame flange portion 12c of the solar cell module 10, the continuity between the solar cell module 10 and the gantry 3 can be obtained. As described above, the conductive clip 20 is not attached only to the solar cell module 10, and even when attached to the mount 3, the effect of the present embodiment can be suitably achieved.

  Moreover, as shown to Fig.7 (a), the electrically conductive clip 20 does not necessarily need to be attached just under the press member 31, and may be attached to the position shifted | deviated to the x-axis direction. Thereby, the freedom degree of arrangement | positioning of the electrically conductive clip 20 can be raised. Furthermore, as shown to Fig.7 (a), the supporting member 30 is not restricted to a short thing, The long thing which has the length for several sheets of the solar cell modules 10 to a x-axis direction is used, You may conduct | electrically_connect between the solar cell modules 10 adjacent to a x-axis direction via the support member 30. FIG.

  As mentioned above, although embodiment of this invention was illustrated, this invention is not limited to embodiment mentioned above, It cannot be overemphasized that it can be made arbitrary, unless it deviates from the objective of invention.

1: Solar cell device 2: Roof 2a: Folded plate 3: Stand 10: Solar cell module 11: Solar cell panel 11a: First main surface 11b: Second main surface 12: Frame member 12a: Fitting portion 12b: Frame upper surface 12c: Frame flange portion 12d: Frame side wall portion 13: Translucent substrate 14: Sealing material 15: Inner lead 16: Solar cell element 17: Back surface protection member 18: Terminal box 20: Conductive clip (grounding conductive clip)
21: Connection part 22: First plate-like part 22a: First surface 22b: Second surface 22c: First side 22d: Second side 22e: Third side 22f: Through hole 22g: Peripheral part 22h: Concave part 22i: First 1 protrusion 22j: 2nd protrusion 22k: 1st area | region 22l: Bending part 23: 2nd plate-shaped part 23a: 4th edge 23b: 5th edge 23c: 6th edge 23d: bending part 23e: notch | incision part 23f: 3rd Protrusion 30: Support member 30a: Fixing portion 30b: Placement portion 30b1: Placement surface 30b2: First through hole 31: Press member 31a: Male screw 31a1: Head portion 31a2: Screw portion 31b: Female screw 31c: Stopper 31c1: Side surface Part 31c2: holding part 31c3: flat plate part 32: ground wire

Claims (8)

A first plate-like portion having a first main surface provided with a first protrusion and a second main surface provided on the opposite side of the first main surface and provided with a second protrusion;
A second plate-like portion having a main surface facing the first main surface of the first plate-like portion;
A conductive clip for grounding, comprising: a connecting portion that connects one side of both the first plate-like portion and the second plate-like portion.   The second plate-like portion is a bent portion in which the interval between the one main surface of the second plate-like portion and the first main surface of the first plate-like portion is narrower than the interval between other portions. The grounding conductive clip according to claim 1, comprising:   The grounding conductive clip according to claim 1, wherein at least one of the first protrusion and the second protrusion has a sawtooth shape.   The first plate-like portion has a through hole, and at least one of the first protrusion and the second protrusion is formed on the first main surface of the first plate-like portion at a peripheral edge portion of the through hole. The grounding conductive clip according to claim 1, wherein the grounding conductive clip is provided.   6. The grounding conductive clip according to claim 1, wherein the second plate-like portion is provided with a third protrusion protruding on the bent portion toward the connection portion.   The conductive clip for grounding according to any one of claims 1 to 5, wherein at least one of the first protrusion and the second protrusion is cylindrical.   The first plate-like portion has a portion bent in a direction away from the second plate-like portion, and at least one of the first protrusion and the second protrusion is provided in the portion. The conductive clip for grounding in any one of thru | or 6. A solar cell module having a solar cell panel and a conductive frame that fits the periphery of the solar cell panel;
A conductive mount for mounting the frame of the solar cell module;
The grounding conductive clip according to any one of claims 1 to 7, provided on any one of the frame and the frame of the solar cell module,
The solar cell device, wherein the frame of the solar cell module and the mount are electrically connected via the first protrusion and the second protrusion of the grounding conductive clip.