JP2014030013A - Frame body and solar cell module with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve strength against a twisting force applied to a fixing portion of a frame piece by arranging a plurality of fixing retainer parts for fixing a plurality of fixing members, in a frame body with a structure for fixing butt ends of the four frame pieces to each other by the fixing members.SOLUTION: Each of frame pieces 10, 20 comprises: holding pieces 12a, 12b, 22a, 22b for holding ends of a solar cell module body 2; support pieces 11, 21 hung from the holding pieces; and first extension pieces 15, 25 extended along a rear surface side of the solar cell module body 2 from lower ends of the support pieces. Lengths in a width direction orthogonal to a longitudinal direction of the first extension pieces 15, 25 are formed longer than that in a width direction orthogonal to a longitudinal direction of the support pieces 12b, 22b. A pair of screw groove parts 17a, 27a are provided along a tip edge in the width direction of the first extension pieces 15, 25, and the other pair of screw groove parts 17b, 17b are provided near the holding pieces 12a, 12b, 22a, 22b.

Description

  The present invention relates to a frame having a structure in which a peripheral portion of a solar cell module main body is held by four frame pieces, and a solar cell module including the frame.

  In general, a conventional solar cell module has a structure in which a peripheral portion of a solar cell module body is held by four frame pieces (see, for example, Patent Document 1).

  In the solar cell module described in Patent Document 1, the frame portion is formed of a hollow quadrangular prism formed by extrusion molding of an aluminum alloy, and the frame body is configured by assembling four frame portions. On the outer wall side above the upper wall of the frame part, an insertion groove having a substantially U-shaped cross section facing the inside for fixing the solar cell module body is provided along the longitudinal direction, and the diagonal direction in the frame part In the corner portion, a thread groove portion having a C-shaped cross section is provided along the longitudinal direction.

JP 2005-294455 A

  In the frame disclosed in Patent Document 1, the screw groove is provided at a certain distance in the diagonal corner of the frame. As a result, a constant strength is maintained against the torsional force (moment) applied to the connecting portion of the frame portion. However, in order to further increase the strength, it is necessary to further increase the distance between the screw groove portions.

  In this case, in order to increase the distance between the two screw groove portions, it is necessary to enlarge the entire frame portion, which causes a problem that the weight increases. In addition, since the amount of material used increases, there is a problem that the manufacturing cost increases.

  The present invention was devised to solve such problems, and an object of the present invention is to provide a frame having a structure in which the butted ends of the four frame pieces holding the peripheral edge of the solar cell module body are fixed by a plurality of fixing members. More specifically, to provide a frame body in which the strength against the torsional force applied to the fixing portion of the frame piece is improved by providing a plurality of fixing receiving portions that fix the fixing member apart from each other. is there. Another object of the present invention is to provide a frame that can use a gap formed by separating the fixed receiving portion as a drainage groove and a solar cell module including the frame.

  In order to solve the above-mentioned problem, the frame of the present invention holds the peripheral edge of the solar cell module main body with four elongated frame pieces, but butts the ends of the four frame pieces, A frame having a structure in which the butted ends are fixed to each other by fixing a fixing member to a plurality of fixed receiving portions formed at the butted ends through a plurality of fixing holes formed in the other butted ends. And two frame pieces which oppose among four frame pieces are a plurality of holding pieces which hold the edge of a solar cell module body, a supporting piece suspended from the holding piece, and a lower end portion of the supporting piece. A first extending piece extending along the back side of the solar cell module main body and at least two fixed receiving portions are provided, and the length in the width direction perpendicular to the longitudinal direction of the first extending piece is plural. Of the holding piece on the first extending piece side Is formed longer than the length in the width direction orthogonal to the longitudinal direction of the first extending piece, and a convex portion is provided on the end opposite to the support piece of the first extending piece, and the distance between the two fixed receiving portions is the first It is characterized by being longer than the length in the width direction orthogonal to the longitudinal direction of the holding piece on the one extending piece side.

  According to the present invention, since the distance in the width direction of the fixed receiving portion can be set apart, the strength can be increased against the twisting force applied to the butt end portion.

  In addition, according to the present invention, since the first extending piece provided with one fixed receiving portion can be used as a drainage channel, when the solar cell module is installed on the roof, The water that has entered between the holding pieces flows in the drainage channel toward the eaves side, so that the intrusion water can be prevented from falling directly onto the roof.

It is the perspective view seen from the light-receiving surface side which shows the whole structure of the solar cell module provided with the frame which concerns on this invention. It is the perspective view seen from the back side showing the whole solar cell module composition provided with the frame concerning the present invention. It is the sectional view on the AA line of FIG. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. It is sectional drawing of a 1st frame piece. It is sectional drawing of a 2nd frame piece. It is sectional drawing of a 3rd frame piece. It is sectional drawing of a 4th frame piece. It is the disassembled perspective view which looked at the C section in FIG. 1 from arrow c1 direction. It is the disassembled perspective view which looked at the D section in FIG. 1 from arrow d1 direction. It is the disassembled perspective view which looked at the E part in FIG. 1 from the arrow e1 direction. It is the disassembled perspective view which looked at F part in FIG. 1 from the arrow f1 direction. It is sectional drawing which shows the state which laid the solar cell module on the roof. It shows another embodiment of this invention, Comprising: It is sectional drawing of a 2nd frame piece. It is another perspective view which shows another embodiment of this invention, and was seen from the light-receiving surface side which shows the whole structure of a solar cell module. Another embodiment of this invention is shown, Comprising: It is sectional drawing of a 4th frame piece.

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

[Embodiment 1]
The frame according to Embodiment 1 and the solar cell module including the frame will be described with reference to the drawings.

  FIG. 1A is a perspective view seen from the light-receiving surface side showing the overall configuration of the solar cell module provided with the frame according to the present invention, and FIG. 1B shows the overall configuration of the solar cell module provided with the frame according to the present invention. FIG. 2A and FIG. 2B are schematic cross-sectional views taken along the line AA of FIG. 1, and FIG. 3 is a schematic cross-sectional view taken along the line BB of FIG. The solar cell module according to the present embodiment exemplifies a tile-integrated solar cell module in which the solar cell module has a tile function, but is not limited to the tile-integrated type.

  As shown in FIGS. 1A and 1B, the solar cell module 1 of the present embodiment includes a solar cell module main body 2 and a frame 3 that holds the peripheral edge of the solar cell module main body 2.

  In the present embodiment, the type of the solar cell that is one of the components of the solar cell module body 2 is not particularly limited. For example, a silicon-based solar cell such as a single crystal, a polycrystal, or a thin film, GaAs, CdTe , CdS and other compound solar cells, dye sensitization, organic thin film and other organic solar cells.

  The frame 3 is composed of four long frame pieces that hold the peripheral edge of the solar cell module body 2, and the long first frame piece that holds the short side of the solar cell module body 2. 10 and the 2nd frame piece 20, and the elongate 3rd frame piece 30 and the 4th frame piece 40 which hold | maintain the long side of the solar cell module main body 2 are comprised.

  Each frame piece 10, 20, 30, 40 is formed by extrusion of aluminum. The first frame piece 10 and the second frame piece 20 respectively hold the left and right side edges of the solar cell module body 2. The third frame piece 30 holds an edge portion located on the house eaves side in the solar cell module body 2. The fourth frame piece 40 holds an edge portion of the solar cell module body 2 that is located on the house ridge side. Further, the end portions of the first frame piece 10 and the second frame piece 20 are connected and fixed to both end portions of the third frame piece 30, and the end portions of the first frame piece 10 and the second frame piece 20 are connected to the end portions of the first frame piece 10 and the second frame piece 20. Both ends of the four frame pieces 40 are connected and fixed.

  Next, the configuration of each of the frame pieces 10, 20, 30, 40 will be described.

  4 is a sectional view of the first frame piece 10, FIG. 5 is a sectional view of the second frame piece 20, FIG. 6 is a sectional view of the third frame piece 30, and FIG. 7 is a sectional view of the fourth frame piece 40. FIG. 8 is an exploded perspective view of the portion C in FIG. 1A as viewed from the direction of the arrow c1, FIG. 9 is an exploded perspective view of the portion D in FIG. 1A as viewed from the direction of the arrow d1, and FIG. FIG. 11 is an exploded perspective view of the portion E in FIG. 1A viewed from the direction of the arrow f1, and FIG. 11 is an exploded perspective view of the portion F in FIG.

<Description of the first frame piece 10>
As shown in FIG. 2A and FIG. 4, the first frame piece 10 includes a long support piece 11 that becomes a leg portion when holding the solar cell module body 2, and is arranged in the longitudinal direction of the support piece 11. A pair of upper and lower holding pieces 12a for fitting and holding the edge portion of the solar cell module body 2 from the lateral direction on one side surface (hereinafter referred to as the right side surface) 11a at the upper end portion in the orthogonal height direction. 12b are extended horizontally.

  On the other hand, on the other side surface (hereinafter referred to as the left side surface) 11b opposite to the right side surface 11a, an upper overlapping piece 13 is extended in the lateral direction from the upper end portion toward the side opposite to the solar cell module body 2. The lower overlapping piece 14 is extended in the lateral direction from the lower end of the left side surface 11b toward the side opposite to the solar cell module body 2. The lateral length of the lower overlapping piece 14 is set to be sufficiently longer than the lateral length of the upper overlapping piece 13.

  On the other hand, at the lower end portion of the right side surface 11 a of the support piece 11, a first extending piece 15 is provided in the lateral direction toward the bottom surface side of the solar cell module body 2. The length L11 in the direction (width direction) is formed to be longer than the length L12 in the horizontal direction of the holding piece 12b.

Further, one screw groove portion (fixed receiving portion) 17a is provided along the longitudinal end edge portion of the first extending piece 15 over the entire length in the longitudinal direction (perpendicular to the paper surface in FIG. 4).
More specifically, one screw groove portion 17a is provided on the outer side in the lateral direction further than the distal end edge portion in the lateral direction of the holding piece 12b. In the present embodiment, even when water enters between the peripheral edge of the solar cell module body 2 and the holding pieces 12a and 12b by the first extending piece 15 and one screw groove 17a, the water can be drained. A possible drainage channel 15a is formed. That is, the thread groove portion 17a is a bank of the drainage channel 15a. Since the thread groove portion 17a is provided over the entire length along the lateral end portion of the first extending piece 15, drainage can be performed more reliably. Moreover, you may provide the hole of the magnitude | size which does not affect drainage in a part of thread groove part 17a. By providing the holes, an air flow can be created between the space on the back surface side of the solar cell module and the outside.

  According to such a configuration, as shown in FIG. 2B, when the first extending piece 15 becomes the drainage channel 15a, when the solar cell module 1 is installed on the roof, the water 90 is converted into the solar cell. Even when the space between the peripheral edge of the module main body 2 and the holding pieces 12a and 12b has entered, the water 90 falls into the drainage channel 15a and flows in the drainage channel 15a toward the eaves side. That is, it is possible to prevent intrusion water from directly falling on the roof.

  On the other hand, another screw groove portion 17b is provided on the upper end portion of the left side surface 11b of the support piece 11 (on the outer surface side of the holding pieces 12a and 12b) over the entire length in the longitudinal direction (perpendicular to the paper surface in FIG. 4). . These screw groove portions 17a and 17b are formed in a C-shaped cross section, but may have a completely cylindrical shape in cross section.

  Further, as shown in FIG. 8, one end of the first frame piece 10 (the end on the side of the residential building) has a pair of upper and lower holding pieces 12a and 12b cut out by a certain length, and this holding is performed. The support piece 11 where the pieces 12a and 12b are cut out is a mounting piece 16 to a fourth frame piece 40 described later. The attachment piece 16 is provided with a screw hole 19 for screwing the screw members 60, 60 into the screw groove portions 47a, 47b of the fourth frame piece 40.

  Moreover, as shown in FIG. 9, the other edge part (edge part by the side of a house eaves) of the 1st frame piece 10 has notch part 12a2, 12b2 by which a pair of upper and lower holding pieces 12a, 12b were slightly notched. It has a structure in which end portions (specifically, corner portions of the holding pieces 32a and 32b) of a third frame piece 30 to be described later are fitted into the notches 12a2 and 12b2.

  According to this configuration, since the distance between the one screw groove portion 17a and the other screw groove portion 17b can be increased (that is, with a sufficient interval), the first frame piece 10 and the fourth frame piece 10 can be provided. Increasing the strength against the torsional force (moment) applied to the butted end portion (connecting portion) with the frame piece 40 and the butted end portion (connecting portion) between the first frame piece 10 and the third frame piece 30. it can.

  Moreover, it is good also as a structure which notched a part by the side of the solar cell module main body side of the thread groove part 17a of the 1st extension piece 15 in the butt | matching edge part of the 1st frame piece 10 and the 3rd frame piece 30. FIG. With such a structure, the third frame piece 30 can be fitted into the first frame piece 10 even when the height of the third frame piece described later is lowered. By reducing the height of the third frame piece on the house eaves side of the solar cell module 1, the thickness of the overlapping portion of the solar cell modules in a state where the solar cell module 1 is installed on the roof can be reduced. Since it becomes possible (refer FIG. 12), it becomes possible to improve the smallness of a solar cell module at the time of installing a solar cell module.

<Description of the second frame piece 20>
As shown in FIG. 2A and FIG. 5, the second frame piece 20 includes a long support piece 21 that becomes a leg portion when holding the solar cell module body 2, and is arranged in the longitudinal direction of the support piece 21. A pair of upper and lower holding pieces 22a for fitting and holding the edge portion of the solar cell module body 2 from the lateral direction on one side surface (hereinafter referred to as the left side surface) 21b of the upper end portion in the orthogonal height direction. 22b extend horizontally.

  In addition, a first extending piece 25 extends in the lateral direction toward the bottom surface side of the solar cell module body 2 at the lower end portion of the left side surface 21b. The length L21 in the horizontal direction (width direction) of the first extending piece 25 is longer than the length L22 in the horizontal direction of the holding piece 22b.

  Further, one screw groove portion (fixed receiving portion) 27a is provided over the entire length in the longitudinal direction (perpendicular to the paper surface in FIG. 5) along the lateral end edge portion of the first extending piece 25. More specifically, one screw groove portion 27a is provided on the outer side in the lateral direction further than the tip edge portion of the holding piece 22b. In the present embodiment, even when water enters between the peripheral edge of the solar cell module body 2 and the holding pieces 22a and 22b by the first extending piece 25 and one screw groove 27a, the water can be drained. A drainage channel is formed.

  According to such a configuration, as shown in FIG. 2B, when the solar cell module 1 is installed on the roof by the first extending piece 25 becoming the drainage channel 25a, the water 90 is converted into the solar cell. Even when the space between the peripheral edge of the module body 2 and the holding pieces 22a and 22b has entered, the water 90 falls into the drainage channel 25a and flows in the drainage channel 25a toward the eaves side. That is, it is possible to prevent intrusion water from directly falling on the roof.

  On the other hand, a second extending piece 26 is provided at the upper end of the right side surface 21a of the support piece 21 so as to extend to the opposite side of the solar cell module body 2 to be held. Another screw groove portion 27b is provided on the lower surface side near the tip portion. These screw groove portions 27a and 27b are formed in a C-shaped cross section, but may have a completely cylindrical shape in cross section.

  In addition, as shown in FIG. 11, one end of the second frame piece 20 (the end on the side of the residential building) has a pair of upper and lower holding pieces 22a and 22b cut out by a certain length, and this holding is performed. The support piece 21 where the pieces 22a and 22b are cut out is a mounting piece 28 to a fourth frame piece 40 which will be described later. The attachment piece 28 is provided with a screw hole 29 for screwing the screw members 60, 60 into the screw groove portions 47a, 47b of the fourth frame piece 40.

  Further, as shown in FIG. 10, the other end of the second frame piece 20 (the end on the house eaves side) is formed with notch portions 22a2 and 22b2 in which a pair of upper and lower holding pieces 22a and 22b are slightly cut away. Thus, an end of a third frame piece 30 to be described later (specifically, a corner of the holding pieces 32a and 32b) is fitted into the notches 22a2 and 22b2.

  According to this configuration, by providing the other screw groove portion 27b in the second extending piece 26, the distance between the one screw groove portion 27a and the other screw groove portion 27b is increased (that is, the interval is sufficient). Since the second frame piece 20 and the fourth frame piece 40 can be provided with a butt end portion (connecting portion), and the second frame piece 20 and the third frame piece 30 can be provided with a butt end portion (connecting portion). The strength can be increased with respect to the torsional force (moment).

  Moreover, you may provide a hole and a notch in a part of screw groove part 27a similarly to a 1st frame piece.

<Description of the third frame piece 30>
As shown in FIGS. 3 and 6, the third frame piece 30 is a frame body that holds the long side of the eaves side of the solar cell module body 2 in the present embodiment, and holds the solar cell module body 2. The upper end portion in the height direction orthogonal to the longitudinal direction of the support piece 31 has one side surface (hereinafter referred to as the right side surface) 31a on the sun. A pair of upper and lower holding pieces 32a and 32b that fit and hold the edges of the battery module body 2 from the lateral direction are horizontally extended.

  Further, a first bent piece 33 is formed extending obliquely downward from the lateral leading edge of the lower holding piece 32 b toward the bottom surface side of the solar cell module body 2, and the first bent piece 33 is formed laterally. A second bent piece 34 is formed so as to extend in parallel along the bottom surface of the solar cell module body 2 from the leading edge portion in the direction. Further, the first bent piece 33 is provided with a locking hole 33a for locking one end of a rod-like support member 50 (see FIG. 12) described later.

  Moreover, when installing the solar cell module 1 of the present embodiment on the roof (on the ground plate) as the roof material, the support piece 31 is on the fourth frame piece 40 of the solar cell module 1 installed on the eaves side. A mounting piece 35, which is formed in a substantially L shape so as to be stacked on top of each other, is fixed to the support piece 31 by a screw member 39.

  Further, as shown in FIG. 9, one end of the third frame piece 30 is an attachment piece 36 in which only the support piece 31 is extended in the longitudinal direction, and the first frame piece is attached to the attachment piece 36. Screw holes 37 and 37 for attaching the screw members 60 and 60 are provided in the ten screw groove portions 17a and 17b. The attachment piece 36 extends in the longitudinal direction (lateral direction) to the end of the upper overlapping piece 13 of the first frame piece 10.

  As shown in FIG. 10, the other end of the third frame piece 30 is an attachment piece 36 in which only the support piece 31 is extended in the longitudinal direction, and the second frame piece is attached to the attachment piece 36. Screw holes 38 and 38 for attaching the screw members 60 and 60 are provided in the 20 screw groove portions 27a and 27b. The attachment piece 36 extends in the longitudinal direction (lateral direction) to the end of the second extending piece 26 of the second frame piece 20.

<Description of the fourth frame piece 40>
As shown in FIGS. 3 and 7, the fourth frame piece 40 is a frame body that holds the long side on the ridge side of the solar cell module main body 2 in the present embodiment, and is a rectangular first along the longitudinal direction. A main body 41 having a closed cross section 41a and a second closed cross section 41b is provided. A pair of upper and lower holding pieces 42a for fitting and holding the edge portion of the solar cell module body 2 in the lateral direction to one side surface (hereinafter referred to as the right side surface) 41a1 of the first closed cross-section portion 41a of the main body portion 41. 42b extend horizontally.

  Further, one screw groove portion 47a is provided on the outer inclined surface of the first closed cross-section portion 41a near the holding piece 42b over the entire length in the longitudinal direction (perpendicular to the paper surface in FIG. 7), and the first closed cross-section portion 41a. The other screw groove portion 47b is provided over the entire length in the longitudinal direction.

  Furthermore, a screw hole for attaching a fixing piece 70 (see FIG. 12), which will be described later, for mounting and fixing the mounting piece 35 of the third frame piece 30 on the upper surface of the main body 41 on the upper surface of the second closed section 41b. 48a is provided, and a screw hole 48b for fixing an end portion of a support member 50 (see FIG. 1B) described later is provided on the lower surface of the first closed cross-section portion 41a.

  Further, on the lower surface of the second closed cross-section portion 41b, when the solar cell module 1 is laid on the roof, it is formed in a substantially L shape for locking to a mounting bracket 102 (see FIG. 12) on the roof described later. The locking piece 49 is provided.

<Description of assembly process of solar cell module 1>
The solar cell module 1 is assembled as follows using the frame pieces 10, 20, 30, and 40 having the above configuration.

  First, an end face sealing member (not shown) is fitted into the peripheral end portion of the solar cell module body 2. The end surface sealing member has a frame shape formed along the outer shape of the end portion of the solar cell module body 2 and is formed of, for example, an elastomer resin. And the holding pieces 32a and 32b of the 3rd frame piece 30 and the 4th frame piece 40 in the edge part which a long side opposes among the peripheral edge parts of the solar cell module main body 2 in which this end surface sealing member was engage | inserted. The holding pieces 42a and 42b of the first frame piece 10 and the holding pieces 22a and 22b of the second frame piece 20 are fitted to the opposing edges on the short side, respectively (see FIG. 3). Are respectively inserted (see FIG. 2A).

  Then, as shown in FIG. 9, the end of the first frame piece 10 and the attachment piece 36 at one end of the third frame piece 30 face each other, and the screw members 60, 60 are attached from the outside of the attachment piece 36. The screw holes 37 and 37 are inserted into the screw groove portions 17a and 17b of the first frame piece 10 facing each other.

  Also, as shown in FIG. 10, the end of the second frame piece 20 and the attachment piece 36 at the other end of the third frame piece 30 face each other, and the screw members 60, 60 are attached from the outside of the attachment piece 36. The screw holes 38 are passed through the screw holes 38 and 38 and screwed into the screw groove portions 27 a and 27 b of the second frame piece 20 facing each other.

  Next, as shown in FIG. 8, the mounting piece 16 of the first frame piece 10 and one end of the fourth frame piece 40 face each other, and the screw members 60 and 60 are respectively screwed from the outside of the mounting piece 16. The fourth frame piece 40 facing each other is screwed into the screw groove portions 47a and 47b through the holes 19 and 19.

  Next, as shown in FIG. 11, the mounting piece 28 of the second frame piece 20 and the other end of the fourth frame piece 40 face each other, and the screw members 60 and 60 are respectively screwed from the outside of the mounting piece 28. The fourth frame piece 40 facing each other is screwed into the thread groove portions 47a and 47b through the holes 29 and 29.

  Thereby, as shown in FIG. 1 thru | or FIG. 3, the peripheral part of the solar cell module main body 2 is hold | maintained by the four frame pieces 10,20,30,40.

  In the solar cell module 1 of the present embodiment, as shown in FIG. 1B, the third frame piece 30 and the fourth frame piece 40 are provided on the back side of the solar cell module body 2 in order to further reinforce the frame body 3. A plurality of (two in this example) support members 50 are bridged between the two. As shown in FIG. 12 described later, one end of the support member 50 has a screw hole 48b provided in the first closed cross-section 41a of the fourth frame piece 40 (see also FIGS. 3 and 7). On the other hand, it is fixed by a screw member 78, the other end is bent and formed in a substantially U shape, and is inserted and locked in the locking hole 33a of the third frame piece 30.

  The mounting piece 35 and the fixed piece 70 attached to the third frame piece 30 are made of a conductive metal. By using a conductive metal, it is possible to electrically connect the frames 3 of the adjacent solar cell modules 1 to each other. Therefore, when the solar cell module 1 is installed, grounding is grounded, so that it is not necessary to electrically connect the frame bodies 3 using wiring, and the installation work can be simplified.

  The solar cell modules 1 assembled in this manner are sequentially laid on the roof which is the installation surface in this embodiment.

<Description of Laying Structure of Solar Cell Module 1>
FIG. 12 is a cross-sectional view showing a state in which the solar cell module 1 is laid on the roof, in which the left side is the eaves side and the right side is the ridge side.

  When laying the roof top plate 100, the solar cell module 1 is placed with the third frame piece 30 on the eaves side and the fourth frame piece 40 on the ridge side. Then, on the fourth frame piece 40 of the solar cell module 1 laid on the eaves side, the third frame piece 30 of the solar cell module 1 on the adjacent ridge side is arranged so as to overlap, and sequentially from the eave side. Lay towards the side.

  More specifically, the solar cell modules 1 in one row are connected to the mounting bracket 102 fixed to the horizontal rail 101 on the base plate 100 by the screw member 110 and the fourth frame piece 40 on the ridge side. The stop piece 49 is locked and fixed. Next, the placing piece 35 of the third frame piece 30 on the opposite eaves side is placed on the fourth frame piece 40 of the solar cell module 1 already laid on the eaves side, and placed in this state. The piece 35 is sandwiched between the upper surface of the fourth frame piece 40 and the fixed piece 70, and the screw member 75 is screwed into the screw hole 48 a of the fourth frame piece 40 through the screw hole 71 provided in the fixed piece 70. Is fixed between the fixed piece 70 and the upper surface of the fourth frame piece 40.

  Thereby, one solar cell module 1 is directly fixed by the mounting bracket 102 in which the fourth frame piece 40 is fixed to the crosspiece 101 on the base plate 100, and the third frame piece 30 is laid on the eaves side. The other solar cell module 1 is fixed to the horizontal rail 101 of the field plate 100 via the fourth frame piece 40.

  In addition, illustration is abbreviate | omitted about the fixing structure of the 3rd frame piece 30 of the solar cell module 1 of the 1st row | line | column of eaves side, and the fixing structure of the 4th frame piece 40 of the solar cell module 1 of the top row | line | column on the ridge side. ing.

  Further, in the present embodiment, a roof tile-integrated solar cell module is illustrated as the solar cell module, but it goes without saying that the frame of the present invention can also be applied to a normal solar cell module that is not roof tile-integrated. It is.

[Embodiment 2]
A frame according to Embodiment 2 and a solar cell module including the frame will be described with reference to the drawings. The difference from the first embodiment is the position of the thread groove portion which is the fixed receiving portion of the second frame piece and the shape of the first extending piece. A description of the same parts as those in the first embodiment will be omitted.

  In FIG. 13, sectional drawing of the 2nd frame piece 200 used by this embodiment is shown. In other words, the second frame piece 200 is another example of the second frame piece 20 shown in FIGS. 2A and 5 in the first embodiment.

  The second frame piece 200 includes a long support piece 210 that serves as a leg when holding the solar cell module main body, and an upper end in a height direction perpendicular to the longitudinal direction of the support piece 210 includes: A pair of upper and lower holding pieces 220a and 220b for fitting and holding the edges of the solar cell module body from the lateral direction are horizontally extended on one side surface. In other words, the holding pieces 220 a and 220 b are formed at the upper end of the left side surface 210 b of the support piece 210.

  The second frame piece 210 is provided with an elongated support piece 210 that serves as a leg when holding the solar cell module body, and the lower end portion of the support piece 210 faces the bottom surface side of the solar cell module body. A first extending piece 250 is provided in the lateral direction. The length of the first extending piece 250 in the horizontal direction (width direction) is formed to be longer than the length of the holding piece 220b in the horizontal direction.

  In addition, one convex portion 250b is provided over the entire length in the longitudinal direction (the direction perpendicular to the paper surface in FIG. 13) along the lateral end edge of the first extending piece 250. More specifically, one convex part 250b is provided further outward in the lateral direction than the tip edge part of the holding piece 220b.

  In the present embodiment, the first extending piece 250 and one convex portion 250b can drain water even when water enters between the peripheral edge of the solar cell module body and the holding pieces 220a and 220b. A drainage channel 250a is formed. That is, the convex portion 250b is a bank of the drainage channel 250a. Since the convex part 250b is provided over the entire length along the longitudinal end edge part of the first extending piece 250, drainage can be performed more reliably.

  That is, according to such a configuration, when the solar cell module is installed on the roof, even if water enters between the peripheral portion of the solar cell module body and the holding pieces 220a and 220b, It falls into this drainage channel and flows through the drainage channel to the eaves side. That is, intrusion water can be prevented from falling directly on the roof.

  In the case of a roof tile-integrated solar battery module, a solar battery module having a tile function is installed on the roof instead of installing the solar battery module on the roof tile. Therefore, the function of preventing intruding water from falling directly onto the roof is very important.

  In the second frame piece 200 of the present embodiment, the screw groove portion 270a that is a fixed receiving portion is formed at a location where the upper end portion of the right side surface 210a of the support piece 210 and the second extending piece 260 intersect. Further, a thread groove portion 270 b that is another fixed receiving portion is formed in contact with the second extending piece 260. The distance between the thread groove 270a and the thread groove 270b is sufficiently large.

  More specifically, when L23 and L24 are compared, L24 is configured to be longer. L23 is the length of a rectangular diagonal line formed by the side below the holding piece 220b of the support piece 210 and the side of the holding piece 220b, and L24 is the distance between the screw groove 270a and the screw groove 270b. It is. Thus, by sufficiently separating the distance between one screw groove portion 270a and the other screw groove portion 270b, the butted end portion (connecting portion) between the second frame piece 200 and the third frame piece, the second frame piece. The connection strength can be increased with respect to the torsional force (moment) applied to the abutting end portion (connecting portion) of 200 and the first frame piece.

[Embodiment 3]
The frame according to Embodiment 3 and the solar cell module including the frame will be described with reference to the drawings. The differences from the first embodiment are the point using a spring steel plate and the shape of the fourth frame piece. A description of the same parts as those in the first embodiment will be omitted. FIG. 14 is a perspective view showing the overall configuration of the solar cell module 1000 including the frame according to the present embodiment as viewed from the light receiving surface side, and FIG. 15 shows a fourth configuration of the solar cell module shown in FIG. A cross-sectional view of the frame piece 400 is shown.

  As shown in FIG. 14, a spring steel plate 80 is placed on the light receiving surface side of the fourth frame piece 400. As described with reference to FIG. 12 in the first embodiment, the solar cell module of the present invention is a solar cell on the adjacent building side on the fourth frame piece of the solar cell module laid on the eaves side of the roof. By placing the third frame pieces of the modules so as to overlap each other, they are laid on the roof.

  When the third frame piece of the solar cell module on the adjacent ridge side is arranged on the fourth frame piece so as to overlap each other, the spring steel plate 80 of the fourth frame piece contacts the mounting piece 35 of the third frame piece. Will do. The spring steel plate and the mounting piece are made of a conductive metal. More specifically, in this embodiment, a spring steel plate manufactured using stainless steel is used. By bringing the conductive metals into physical contact with each other, the frames of the adjacent solar cell modules can be electrically connected to each other. Therefore, when installing the solar cell module, since the ground is grounded, the work of electrically connecting the frames using wiring is not required, and the installation work can be simplified.

  In the present embodiment, the spring steel plates 80 are arranged at a total of three locations, one at the center in the longitudinal direction of the fourth frame piece 400 and one at a location near both ends. With such an arrangement, it is possible to cope with various construction design patterns of the solar cell module. For example, when the solar cell module on the eave side of the roof and the solar cell module on the ridge side are arranged in a staggered manner with a lateral shift from each other, the solar cell module on the eave side via a spring steel plate disposed near the end The solar cell module on the ridge side is electrically connected. Moreover, even when the elongate-side solar cell module and the ridge-side solar cell module have different lengths in the longitudinal direction, they can be electrically connected via spring steel plates arranged at any of three locations. As described above, by disposing in three places, it is possible to cope with various constructions without changing the design of the solar cell module.

  Next, the structure of the fourth frame piece will be described with reference to FIG. FIG. 15 is a cross-sectional view of the fourth frame piece 400. In other words, the fourth frame piece 400 is another example of the fourth frame piece 40 shown in FIG. 7 in the first embodiment.

  The holding | maintenance part 490b is extended in the reverse direction to the solar cell module main body. A screw hole 480a is formed in the holding portion 490b extending in the opposite direction, and the holding portion 490b and the spring steel plate 80 are fixed by a screw member 81 that is a fixing member.

  In the present embodiment, a frame using aluminum is used, and an insulating film is formed on the surface of the frame by anodizing. The fourth frame piece 400 and the spring steel plate 80 are connected via a screw member 81 using stainless steel. Therefore, the conductive frame body of the fourth frame piece 400 and the spring steel plate 80 are electrically connected via the conductive screw member 81. When the spring steel plate 80 comes into contact with the third frame piece of the adjacent solar cell module, the adjacent solar cell modules are electrically connected to each other.

  In Embodiment 1, the example which uses a fixing piece for the connection of the frame bodies of an adjacent solar cell module was shown. The fixed piece is a member different from the frame and has a structure in which the fixed piece is connected to the frame by a screw member that is a fixed member. In the present embodiment, the holding portion 490a has a function of connecting adjacent frames, and corresponds to the fixed piece in the first embodiment. In Embodiment 4, by integrating the members, the number of parts of the solar cell module can be reduced, and the number of steps in assembly can be reduced.

  Furthermore, in the first embodiment, the substantially tongue-shaped main body 41 includes the first closed cross-section portion 41a and the second closed cross-section portion 41b that are substantially tongue-shaped. In this embodiment, the closed cross-section is The structure is not equipped. By using the main body portion 410 having a substantially simple structure without such a closed cross section, it is possible to reduce the total amount of members necessary to configure the frame. Therefore, the solar cell module can be reduced in weight and the cost can be reduced.

  Screw groove portions 470a and 470b, which are one fixed receiving portion, are installed over the entire length in the longitudinal direction (perpendicular to the paper surface in FIG. 15) on the outer side on the lower side of the main portion 410 corresponding to the back side of the solar cell module body. Although the position of the fixed receiving portion is different from that of the first embodiment, this is one example.

  In this embodiment, although the example using the spring steel plate using stainless steel was shown, the material is not restricted to stainless steel, and is not limited to the spring steel plate.

  Although a plurality of points different from the first embodiment have been described as the third embodiment, it is needless to say that only one of them may be used, or several different points may be used in combination.

  As mentioned above, although Embodiment 1 to Embodiment 3 was specifically described, the present invention is not limited to them. Embodiments obtained by appropriately combining the technical means disclosed in the above-described three embodiments are also included in the technical scope of the present invention.

  In addition, embodiment disclosed this time is an illustration in all the points, Comprising: It does not become the basis of limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the description of the scope of claims. Moreover, all the changes within the meaning and range equivalent to a claim are included.

  In the frame of the present invention, the peripheral portion of the solar cell module main body is held by four elongated frame pieces, the ends of the four frame pieces are butted together, and one of the butted edges is A frame having a structure in which the butted ends are fixed to each other by fixing the fixing members to the formed fixed receiving portions through a plurality of fixing holes formed in the other butted ends. The two opposite frame pieces among the four frame pieces are a plurality of holding pieces for holding the edge of the solar cell module main body, a supporting piece suspended from the holding piece, and a lower end portion of the supporting piece. A first extending piece extending along the back side of the solar cell module main body, and the length in the width direction perpendicular to the longitudinal direction of the first extending piece is the length of the plurality of holding pieces The length of the holding piece on the first extending piece side The one fixed receiving portion is provided along the end edge of the first extending piece in the width direction, and is arranged in the vicinity of the holding piece. The fixed receiving part is provided.

  According to the present invention, by providing one fixed receiving portion along the front end edge in the width direction of the first extending piece and providing another fixed receiving portion in the vicinity of the holding piece, the width of these fixed receiving portions is obtained. The distance in the direction can be separated.

  In the frame of the present invention, the fixed receiving portion is a screw groove portion formed over the entire length of the frame piece in the longitudinal direction, and the fixing member is a screw member.

  According to this configuration, by providing a distance between the thread groove portions formed over the entire length in the longitudinal direction (that is, with a sufficient interval), the torsional force (moment) applied to the butt end portion can be reduced. Strength can be increased.

  In the frame of the present invention, the one fixed receiving portion is provided on the outer side in the width direction further than the distal end edge portion of the holding piece.

  According to this structure, the distance between one fixed receiving part and other fixed receiving parts is separated by providing one fixed receiving part on the outer side in the width direction further than the front end edge of the holding piece ( In other words, since it can be provided with a sufficient interval, the strength can be increased against the twisting force (moment) applied to the butt end.

  Further, the frame of the present invention is a drainage channel for draining water that has entered between the peripheral portion of the solar cell module body and the holding piece by the first extending piece and the one fixed receiving part. It is set as the structure formed.

  According to this configuration, when the first extending piece becomes a drainage channel, when the solar cell module is installed on the roof, the water that has entered between the peripheral portion of the solar cell module and the holding piece is In this drainage channel, it will flow to the eaves side. That is, it is possible to prevent intrusion water from directly falling on the roof.

  In the frame of the present invention, the other fixed receiving portion is provided on the outer surface of the holding piece.

  According to this configuration, since the distance between one fixed receiving portion and the other fixed receiving portion can be increased (that is, with a sufficient interval), the torsional force (moment) applied to the butt end portion can be provided. ) Can be increased in strength.

  Further, according to the frame of the present invention, the holding piece is provided with the second extending piece extending on the opposite side to the solar cell module body on which the peripheral edge is held, and the other fixed receiver. The part is configured to be provided on the second extending piece.

  According to this configuration, by providing the other fixed receiving portion on the second extending piece, the distance between the one fixed receiving portion and the other fixed receiving portion is increased (that is, with a sufficient interval). Since it can be provided, the strength can be increased against the torsional force (moment) applied to the butt end.

  Moreover, in the frame of this invention, it is set as the structure by which the notch was provided in a part of said one fixed receiving part provided along the front-end edge part of the said width direction of the said 1st extending piece. Thus, by providing the cut, the solar cell module can be made smaller when the solar cell module is constructed.

  Moreover, the solar cell module of the present invention is characterized in that the solar cell module main body is held by the frame body having the above-described configuration.

  ADVANTAGE OF THE INVENTION According to this invention, the solar cell module with sufficient intensity | strength with respect to the force of torsion is realizable.

DESCRIPTION OF SYMBOLS 1 Solar cell module 2 Solar cell module main body 3 Frame 10 1st frame piece 11 Support piece 11a Right side surface 11b Left side surface 12a, 12b Holding piece 12a2, 12b2 Notch part 13 Upper overlapping piece 14 Lower overlapping piece 15 1st extension Installation piece 15a Drainage channel 16 Mounting piece 17a, 17b Thread groove (fixed receiving part)
19 Screw hole 20, 200 Second frame piece 21, 210 Support piece 21a, 210a Right side face 21b, 210b Left side face 22a, 22b, 220a, 220b Holding piece 25, 250 First extending piece 25a, 250a Drainage path 250b Convex part 26, 260 Second extending piece 27a, 27b, 270a, 270b Screw groove (fixed receiving portion)
28 Mounting piece 29 Screw hole 30, 300 Third frame piece 31 Support piece 31a Right side surface 32a, 32b Holding piece 33 First bending piece 33a Locking hole 34 Second bending piece 35 Mounting piece 36 Mounting piece 37, 38 Screw hole 39 Screw member 40, 400 Fourth frame piece 41, 410 Main portion 41a First closed cross-section portion 41a1 Right side surface 41b Second closed cross-section portion 42a, 42b, 420a, 420b Holding piece 47a, 47b, 470a, 470b Screw groove portion 48a, 48b, 480a Screw hole 49 Locking piece 490a, 490b Holding portion 60, 75, 78 Screw member 70 Fixed piece 71 Screw hole 81 Screw member 90 Water 100 Field plate 101 Horizontal crosspiece 102 Mounting bracket

Claims (5)

The peripheral part of the solar cell module main body is held by four elongated frame pieces, the ends of the four frame pieces are butted together, and a plurality of fixed receiving portions formed at one butted end part A frame body having a structure in which the butted ends are fixed by fixing the fixing members through a plurality of fixing holes formed in the other butted ends,
Two opposing frame pieces out of the four frame pieces are a plurality of holding pieces for holding the edge of the solar cell module body, a supporting piece suspended from the holding piece, and a lower end portion of the supporting piece. A first extending piece extending along the back side of the solar cell module main body, and at least two fixed receiving portions,
The length in the width direction orthogonal to the longitudinal direction of the first extending piece is formed longer than the length in the width direction orthogonal to the longitudinal direction of the holding piece on the first extending piece side among the plurality of holding pieces. And
A convex portion is provided at an end opposite to the support piece of the first extending piece,
The distance between the two fixed receiving portions is longer than the length in the width direction perpendicular to the longitudinal direction of the holding piece on the first extending piece side. The frame according to claim 1,
One of the plurality of fixed receiving portions is provided with the one fixed receiving portion along a distal end portion, and the other fixed receiving portion is provided in the vicinity of the holding piece. body. The frame according to claim 1,
The holding piece is provided with a second extending piece extending on the side opposite to the solar cell module main body where the peripheral edge is held,
One of the plurality of fixed receiving portions is provided in the vicinity of the holding piece,
The other fixed receiving portion is provided on the second extending piece, and the frame. A frame according to any one of claims 1 to 3, wherein
The frame is characterized in that the fixed receiving portion is a screw groove portion formed over the entire length of the frame piece in the longitudinal direction, and the fixing member is a screw member.   The solar cell module main body is hold | maintained by the frame of any one of Claim 1- Claim 4. The solar cell module characterized by the above-mentioned.