JP2012082642A - Solar cell array - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell array having workability and high strength.SOLUTION: An solar cell array in an embodiment of the present invention comprises a plurality of solar cell modules which have frames at outer edges and are arranged along a first direction, a fixing member which fixes corners of the frame on an installation surface, and a spacer which is arranged between two neighboring solar cell modules in the first direction and arranged in the intermediate part of the frame in a second direction perpendicular to the first direction.

Description

  The present invention relates to a solar cell array.

  The solar cell array has a gantry and a plurality of solar cell modules fixed to the gantry. In general, a long structural member is installed as a pedestal on the roof of a house, and opposing sides of the solar cell module are fixed over the entire length on the pedestal.

  Moreover, in order to simplify construction, a solar cell array having a configuration in which a corner portion of a solar cell module is fixed to a gantry with a small fixing member has been proposed (see, for example, Patent Document 1 and Patent Document 2).

Japanese Patent Laid-Open No. 3-199566 Japanese Patent Laid-Open No. 11-159091

  However, the solar cell array having a high workability described in the above-mentioned patent document has a large load for loads such as snow load and wind pressure load when the size of the solar cell module is increased in order to improve the power generation amount. There was a possibility that the strength of the array was insufficient due to insufficient force to fix the module.

  Further, since the frame becomes longer as the solar cell module becomes larger, the torsional moment applied to the frame increases. For this reason, the frame may be twisted and deformed outward from the center portion, and the solar cell panel may fall off the frame.

  This invention is made | formed in view of the subject mentioned above, The objective is to provide the solar cell array which has the outstanding construction property and high intensity | strength.

  The solar cell array which concerns on one Embodiment of this invention has a frame which has a flame | frame in an outer edge part, and fixes the corner | angular part of the said frame to an installation surface which is arranged along a 1st direction. And a spacer disposed between two solar cell modules adjacent to each other in the first direction, and a spacer disposed in an intermediate portion of the frame in a second direction perpendicular to the first direction. Yes.

  According to the solar cell array according to an embodiment of the present invention, a spacer can be easily fitted and attached to the space between the solar cell modules adjacent to each other in the first direction such as the inclination direction of the installation surface. The space | interval of a solar cell module can be prescribed | regulated in an intermediate part, and the twist deformation | transformation which goes outside a flame | frame can be reduced. Thereby, while having the outstanding workability, the high intensity | strength solar cell array which can reduce that a solar cell panel drops | omits from a flame | frame can be provided.

It is drawing which shows a mode that the solar cell array which concerns on the 1st Embodiment of this invention was installed in the inclined surface, (a) is the perspective view which looked at the solar cell array from the light-receiving surface side, (b) is FIG. It is the elements on larger scale of the A section of a). It is drawing which shows the solar cell module of the solar cell array which concerns on the 1st Embodiment of this invention, (a) is the top view which looked at the solar cell module from the light-receiving surface side, (b) is FIG. 2 (a). It is sectional drawing which shows a BB 'cross section. It is drawing which shows the fixing member used for the solar cell array which concerns on the 1st Embodiment of this invention, (a) is a perspective view of a fixing member, (b) is CC 'cross section of Fig.3 (a). FIG. It is drawing which shows the solar cell array which concerns on the 1st Embodiment of this invention, (a) is sectional drawing which shows the DD 'cross section of Fig.1 (a), (b) is FIG.1 (a). It is sectional drawing which shows EE 'cross section. It is drawing which shows the spacer used for the solar cell array which concerns on the 1st Embodiment of this invention, (a) shows the perspective view of a spacer, (b) is the elements on larger scale of the F section of FIG.4 (b). is there. It is sectional drawing which shows the spacer used for the solar cell array which concerns on other embodiment of this invention. In the solar cell array which concerns on one Embodiment of this invention, it is a perspective view and sectional drawing which show a mode that a spacer is attached to the flame | frame of a solar cell module. It is a cross-sectional partial enlarged view which shows the solar cell array which concerns on other embodiment of this invention.

<First Embodiment>
Hereinafter, a solar cell array according to a first embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 (a) and 1 (b), the solar cell array 1 according to the first embodiment of the present invention is fixed on an inclined surface 2 (installation surface) made of a base plate, a field plate, and a rafter. Is done. Then, as shown in FIG. 1, the solar cell array 1 inclines the corners of a plurality of solar cell modules 3 arranged at intervals along the inclination direction of the inclined surface 2 and the adjacent solar cell modules 3. The fixing member 4 fixed to the surface 2 and the spacer 5 arrange | positioned between the solar cell modules 3 adjacent in the inclination direction (eave building direction) of the inclined surface 2 are provided.

  In the following, the inclination direction of the inclined surface 2 is the y-axis direction (first direction), the normal direction to the inclined surface 2 is the z-axis direction, and the y-axis direction and the direction orthogonal to the z-axis direction are the x-axis direction (second direction). Direction). Moreover, in this specification, among the solar cell modules 3 adjacent to each other in the y-axis direction (inclination direction), the solar cell module located on the eave side is referred to as a first solar cell module 3a, and the solar cell located on the ridge side. The module is called a second solar cell module 3b.

  In addition, in this embodiment, although the inclined surface 2 which inclines is illustrated as an installation surface, the solar cell array 1 may be installed in the installation surface which is not inclined.

  First, the solar cell module 3 is demonstrated using FIG. 1 (a), (b), FIG. 2 (a), and (b).

  As shown in FIG. 1A, the plurality of solar cell modules 3 are arranged along the y-axis direction and also arranged along the x-axis direction. And each solar cell module 3 has the solar cell panel 11 and the flame | frame 12 which reinforces the outer edge part of this solar cell panel, as shown to Fig.2 (a) and (b).

  As shown in FIG. 2B, the solar cell panel 11 has a light receiving surface 11a (one main surface of the translucent substrate 14) that mainly receives light and a non-light receiving surface 11b (corresponding to the back surface of the light receiving surface 11a). One main surface of the back surface protection member 13).

  Then, the solar cell panel 11 is sequentially surrounded by a light-transmitting substrate 14 that also serves as a substrate of the solar cell module 3, a pair of sealing materials 15 made of a thermosetting resin, and the sealing material 15 in order from the light receiving surface 11 a side. And a plurality of solar cell elements 17 that are electrically connected by inner leads 16.

  Furthermore, the solar cell panel 11 includes a back surface protection member 13 that protects the back surface of the solar cell module 3 and a terminal box 18 for taking out the output obtained by the solar cell element 17 to the outside.

  In addition, the non-light-receiving surface 11b is formed, for example, by forming the back surface protection member 13 and the sealing material 15 positioned between the solar cell element 17 and the back surface protection member 13 with a material having translucency. It may be configured to receive a part of light incident from the non-light-receiving surface 11b side.

  As the solar cell element 17, for example, a flat substrate made of single crystal silicon, polycrystalline silicon, or the like is used. When such a silicon substrate is used, adjacent silicon substrates may be electrically connected by the inner leads 16 as described above.

  Moreover, the kind in particular of the solar cell element 17 is not restrict | limited, For example, using the thin film solar cell which consists of amorphous silicon, a CIGS solar cell, a CdTe solar cell, the solar cell element 17 which formed the thin film amorphous on the crystalline silicon substrate, etc. Also good. For example, as the solar cell element 17 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 a light-transmitting substrate can be used. .

  The terminal box 18 has a box made of modified polyphenylene ether resin (modified PPE resin) or polyphenylene oxide resin (PPO resin), a terminal plate arranged in the box, and an output for deriving electric power to the outside of the box. A cable.

  The frame 12 has a function of holding the solar cell panel 11. The frame 12 includes a fitting portion 12a that is fitted to the solar cell panel 11, a frame upper surface 12b that is positioned on the side that receives sunlight, and a rear surface side of the frame upper surface 12b when the solar cell array 1 described later is installed. A frame lower surface 12c, and a frame upper surface 12b and a frame side surface 12d that connects the frame lower surface 12c and faces outward. Such a frame 12 can be manufactured by extruding aluminum or the like.

  Next, the fixing member 4 will be described with reference to FIGS. 3 (a), 3 (b) and 4 (a).

  The fixing member 4 is not particularly limited as long as the solar cell module 3 can be fixed to the roof (frame). In the present embodiment, for example, as shown in FIG. 3B, the fixing member 4 includes a lower member 21, an intermediate member 22, an upper member 23, a fastening member 24, a wood screw 25, and an adhesive member 26. And comprising. With such a fixing member 4, the corner frames 12 of two solar cell modules 3 adjacent in the y-axis direction are sandwiched and fixed by the upper member 23 and the middle member 22.

  Specifically, as shown in FIGS. 3A and 3B, the lower member 21, the middle member 22, and the upper member 23 are integrated by a fastening member 24. As shown in FIG. 4A, the lower member 21 comes into contact with the frame lower surface 12c, and the middle member 22 comes into contact with the frame upper surface 12b. Thereby, the adjacent solar cell modules 3 are clamped and fixed by the fixing member 4. Further, the lower member 21 of the fixing member 4 is fixed to the inclined surface 2 by a wood screw 25. Thereby, the adjacent solar cell modules 3 are fixed to the inclined surface 2 by the fixing member 4 while being fixed to each other. At this time, the interval between two solar cell modules 3 adjacent in the y-axis direction is appropriately selected according to the spacer 5 and the fixing member 4 to be used. For example, two adjacent solar cell modules 3 are fixed with an interval of several mm to about 5 cm.

  Next, the spacer 5 will be described in detail with reference to FIGS. 1 (a), 4 (b), 5 (a) and 5 (b).

  As shown in FIG. 1A, the spacer 5 is disposed so as to abut on an intermediate portion of the frame side surface 12d of the first solar cell module 3a and the second solar cell module 3b adjacent in the y-axis direction. Here, the intermediate portion is a portion other than the end portion of the frame 12 of the solar cell module 3. In the present embodiment, the spacer 5 is disposed so as to abut the substantial center of the side of the frame 12 along the x direction. Thereby, the effect which reduces the bending by the twist deformation of the flame | frame 12 mentioned later can be heightened.

  As shown in FIGS. 5A and 5B, the spacer 5 contacts the first contact portion 31 that contacts the frame side surface 12d of the first solar cell module 3a and the side surface of the second solar cell module 3b. A main body portion 35 having a possible second contact portion 32.

  The main body 35 has an upper connecting portion 33 a and a lower connecting portion 33 b that define the distance between the first contact portion 31 and the second contact portion 32. The upper connecting portion 33 a connects the upper end of the first contact portion 31 and the upper end of the second contact portion 32. The lower connection portion 33b is connected to the lower end of the first contact portion 31 and the lower end of the second contact portion 32, and faces the upper connection portion 33a.

  Thus, in this embodiment, the main-body part 35 has a hollow structure. With such a configuration, the consumption of metal resources can be reduced, and the cost of the solar cell array 3 can be reduced.

  The spacer 5 can be manufactured by extruding a metal such as an aluminum alloy. In the case of using a material other than the aluminum alloy, it can be manufactured by roll forming or bender bending an alloy steel such as stainless steel or a plated steel plate.

  Such a spacer 5 is held by the attachment means 34 between the frame side surfaces 12b of the first solar cell module 3a or the second solar cell module 3b. The attachment means 34 can use fastening with an adhesive or a wood screw.

  As shown in FIG. 4B, the spacer 5 is separated from the inclined surface 2, unlike the fixing member 4. That is, the spacer 5 is sandwiched between the frame 12 of the first solar cell module 3a and the frame 12 of the second solar cell module 3b.

  Since the fixing member 4 can withstand the wind load blowing up the solar cell module 3, the fixing member 4 is fixed to the inclined surface 2 with screws. On the other hand, such a spacer 5 is used in combination with the fixing member 4 to reduce bending and twisting of the frame 12. Therefore, the spacer 5 can greatly simplify the structure and simplify the construction as compared with the fixing member 4 that fixes the corners of the frame 12 to the inclined surface 2.

  On the other hand, by providing the spacer 5, the distance between the first solar cell module 3 a and the second solar cell module 3 b is kept constant, so that torsional deformation toward the outside of the frame 12 can be prevented. it can. Thereby, it can reduce that the solar cell panel 11 falls from the flame | frame 12, and the intensity | strength of the solar cell array 1 can be raised.

  Furthermore, since the spacer 5 abuts against the intermediate portion of the opposed frames 12 and the distance between the opposed frames 12 is maintained, when the snow piled up on the solar cell module 3 slides, the snow slides in the y-axis direction. It is possible to reduce the deformation or dropping of the frame 12 in the (inclination direction).

  Thus, the solar cell array 1 of this embodiment can have excellent workability and high strength. Therefore, the size of the solar cell module 3 can be increased, and a solar cell array with a large power generation amount can be realized.

  In addition, the fixing member 4 in this embodiment is only an example, and the fixing member is not limited to the above-described structure as long as the corner of the solar cell module 3 can be fixed.

<Second Embodiment>
Next, the solar cell array which concerns on the 2nd Embodiment of this invention is demonstrated using Fig.6 (a).

  The solar cell array according to this embodiment is different from the first embodiment in the structure of the spacer 5 as shown in FIG.

  In this embodiment, it further has the spacer 5, the 1st upper flange 36 and the 1st lower flange 37 which extend toward the 1st solar cell module 3a.

  The first upper flange 36 contacts the frame upper surface 12b of the first solar cell module 3a, and the first lower flange 37 contacts the frame lower surface 12c of the first solar cell module 3a. The first upper flange 36 is formed continuously with the upper coupling portion 33a so that the upper surface thereof is located on the same plane as the upper surface of the upper coupling portion 33a. The first lower flange 37 is formed continuously with the lower connecting portion 33b so that the lower surface thereof is located on the same plane as the lower surface of the lower connecting portion 33b.

  With such a configuration, when the spacer 5 is attached between the first solar cell module 3a and the second solar cell module 3b, the first upper flange 36 and the first lower flange 37 indicate the attachment position of the spacer 5 in the solar cell. Since it functions as a guide in the Z-axis direction when positioning on the module 3, there is no positional shift up or down in the Z-axis direction, and construction becomes easy.

  The spacer 5 is sandwiched between the first solar cell module 3a and the second solar cell module 3b, and the frame 12 of the first solar cell module 3a is sandwiched between the first upper flange 36 and the first lower flange 37. , The spacer 5 can be prevented from falling off the frame 12.

  Furthermore, as described above, in the present embodiment, the first upper flange 36 and the first lower flange 37 are formed continuously with the upper connecting portion 33a and the lower connecting portion 33b, respectively. Thereby, since there is no level | step difference between the 1st upper flange 36 and the upper connection part 33a and between the 2nd lower flange 37 and the lower connection part 33b, it can reduce that a snowslide clogs.

  The length of the first upper flange 36 along the y-axis direction may be smaller than the length of the frame upper surface 12b along the y-axis direction so as not to cast a shadow on the power generation region of the solar cell module 3. Good. Further, the length along the y-axis direction of the first lower flange 37 as described above may be larger than the length along the y-axis direction of the frame lower surface 12c in order to improve the attachment strength to the frame 12. Further, the length of the first contact portion 31 and the second contact portion 32 along the z-axis direction is substantially the same as the length of the frame side surface 12 along the z-axis direction so that the frame 12 can be accurately fitted. May be.

<Third Embodiment>
Next, the solar cell array which concerns on the 3rd Embodiment of this invention is demonstrated using FIG.6 (b).

  The solar cell array according to the present embodiment is different from the second embodiment in the structure of the main body portion 35 of the spacer 5 as shown in FIG.

  In the present embodiment, the first contact portion 31 includes a first portion 31a extending from the upper connecting portion 33a toward the back surface, and a first portion 31a extending from the lower connecting portion 33b toward the light receiving surface. Two portions 31b. The first portion 31a and the second portion 31b are separated from each other. Further, as described above, the main body portion 35 has a hollow structure, and the second contact portion 32 is disposed with a space from the first contact portion 31.

  As described above, the first contact portion 31 is disposed so as to be spaced from the second contact portion 32, and the first portion 31a and the second portion 31b of the first contact portion 31 are separated from each other. Thus, the hinge point when the spacer 5 is fitted into the frame 12 can be arranged on the ridge side. Specifically, the connection point P1 between the second contact part 32 and the upper connection part 33a, which functions as a hinge point, and the connection part P2 between the second contact part 32 and the lower connection part 33b, and the action point at which the force acts. The distance in the y-axis direction between the tip end side of the first upper flange 36 and the tip end side of the first lower flange 36 can be increased, and the acting moment can be increased. As a result, the gap between the first upper flange 36 and the first lower flange 37 can be easily opened, the spacer 5 can be easily installed, and the workability can be improved.

  Further, the spacer 5 is attached to the frame 12 by making the distance in the z-axis direction between the first upper flange 36 and the first lower flange 37 slightly smaller than the length along the z-axis direction of the frame side surface 12d. Later, the pressing force by which the spacer 5 holds the frame 12 can be applied. Thereby, the effect of reducing the drop-off of the spacer 5 from the frame 12 is further increased, and the strength of the solar cell array can be further increased.

<Fourth Embodiment>
Next, the solar cell array which concerns on the 4th Embodiment of this invention is demonstrated using FIG.6 (c).

  As shown in FIG. 6C, the solar cell array according to the present embodiment is different from the third embodiment in the structure of the first upper flange 36 and the first lower flange 37.

  In the present embodiment, the first upper flange 36 has a first convex portion 41 that engages with the frame upper surface 12b at the distal end, and the first lower flange 37 engages with the frame lower surface 12c at the distal end. It has the 2nd convex part 42 to do.

  Such first convex portion 41 and second convex portion 42 engage with the frame 12 and function as a stopper for the spacer 5 to be removed from the frame 12. Accordingly, the strength of the solar cell array 1 can be increased by increasing the attachment strength of the spacer 5 to the frame 12 without using an adhesive that causes UV degradation or screw fastening that requires consideration for corrosion between different metals. it can.

<Fifth Embodiment>
Next, the solar cell array which concerns on the 5th Embodiment of this invention is demonstrated using FIG.6 (d).

  The solar cell array according to this embodiment is different from the fourth embodiment in the structure of the first contact portion 31 as shown in FIG.

  In the present embodiment, the second portion 31b of the first contact portion 31 has a third convex portion 43 that engages with the frame side surface 12d at the tip portion.

  With such a configuration, the third convex portion 43 presses the frame side surface 12d when the spacer 5 is attached. As a result, the second portion 31 b bends, and tension is generated to sandwich the frame 12 between the second convex portion 42 and the third convex portion 43, and the spacer 5 can be attached to the frame 12 more firmly. As a result, dropping of the spacer 5 from the frame 12 can be reduced.

  In addition, when the area | region which contact | abuts the frame lower surface 12c among the 1st lower flanges 37 is made into a lower contact area | region, in order to produce the tension | tensile_strength effectively, the length along the y-axis direction of this lower contact area | region. In addition, the frame lower surface 12c may be slightly shorter than the length along the y-axis direction. Thereby, while having simple construction property, the intensity | strength of the solar cell array 1 can be raised.

  Moreover, in this embodiment, the 2nd part 31b of the 1st contact part 31 has the buffer member 47 in the surface facing the frame side surface 12d of the 1st part 31a. As such a buffer member 47, EPDM, rubber, or the like can be used.

  With such a configuration, a tension for sandwiching the frame upper surface 12b between the second convex portion 42 and the buffer member 47 is generated, and the spacer 5 can be attached to the frame 12 more firmly. As a result, the effect of reducing the drop-off of the spacer 5 from the frame 12 can be enhanced. Furthermore, since the buffer member 47 improves the frictional force generated between the second dividing portion 31b and the frame side surface 12d, the effect of reducing the dropout of the spacer 5 from the frame 12 can be further enhanced.

  In addition, when the area | region which contact | abuts the flame | frame upper surface 12b among the 1st upper flanges 36 is made into an upper contact area | region, in order to produce tension | tensile_strength effectively, the length along the y-axis direction of this upper contact area | region It may be slightly shorter than the length along the y-axis direction.

<Sixth Embodiment>
Next, the solar cell array which concerns on the 6th Embodiment of this invention is demonstrated using FIG.6 (e).

  FIGS. 7 (a) to 7 (f) are drawings for explaining the attachment of the spacer 5 used in the solar cell array according to a seventh embodiment of the present invention to be described later. Specifically, FIG. 7A to FIG. 7C are perspective views showing the relationship between the spacer 5 and the frame 12 at each stage of attachment, and FIG. 7D to FIG. FIG. 8 is a cross-sectional view corresponding to FIG. 7 (a) to FIG. 7 (c), respectively. Since the spacer 5 according to the present embodiment and the spacer according to the seventh embodiment to be described later have the same shape on the first solar cell module 3a side, the spacer 5 according to the present embodiment is used with reference to these drawings. The attachment to the first solar cell module 3a will be described.

  As shown in FIG. 6E, the solar cell array according to the present embodiment is different from the fifth embodiment in the structure of the first lower flange 37.

  In the present embodiment, the first lower flange 37 of the spacer 5 has a concave bent portion 44 on the side facing the solar cell module 3.

  By providing the bent portion 44 in the first lower flange 37 in this way, the corners of the frame 12 rotate inside the concave bent portion 44 as shown in FIGS. it can. Thereby, the deformation amount of the spacer 5 functioning as a hinge can be reduced. As a result, the rigidity of the spacer 5 can be increased, and the pressing force for holding the frame 12 between the first upper flange 36 and the first lower flange 37 after the spacer 5 is attached to the frame 12 can be increased. The strength of attachment to the frame 12 can be increased.

  Furthermore, in the present embodiment, the first inclined surface 44a located on the concave bent portion 44 and the second convex portion 42 side, the second inclined surface 44b located on the main body portion 35 side, and the first inclined surface 44a And a flat surface 44c positioned between the second inclined surface 44b. The inclination angle of the first inclined surface 44a is larger than the inclination angle of the second inclined surface 44b. That is, when the spacer 5 is fitted into the frame 12, the first inclined surface 44 a that first approaches the frame 12 has an inclination angle that is greater than the inclination angle of the second inclined surface 44 b that approaches the frame 12 later. ing.

  With such a configuration, when the spacer 5 is fitted into the frame 12, when the fitting is started, the inclination angle of the first inclined surface 44a is steep, so that the corner portion of the frame 12 falls to the flat surface 44c at an early stage. As a result, the frame 12 is easily brought into contact with the rotation starting point, and the frame 12 is easily rotated. Further, since the inclination angle of the second inclined surface 44b is gentle at the end of fitting, the spacer 5 that functions as a hinge can be elastically deformed while rotating the frame 12, reducing the occurrence of large resistance. it can. As a result, while having high workability, the intensity | strength of the solar cell array 1 can be raised.

<Seventh Embodiment>
Next, the solar cell array which concerns on the 7th Embodiment of this invention is demonstrated using FIG.6 (f).

  The solar cell array according to this embodiment is different from the sixth embodiment in the structure of the spacer 5 as shown in FIG.

  In the present embodiment, the spacer 5 further has a second lower flange 45 that extends from the lower connecting portion 33b toward the second solar cell module 3b and contacts the frame lower surface 12c of the second solar cell module 3b.

  With such a configuration, the frame 12 of the second solar cell module 3b can be supported from the lower surface 12c side by the second lower flange 45. Therefore, even when a snow load is applied and the solar cell array 1 is easily deformed, the distance between the first solar cell module 3a and the second solar cell module 3b can be stably maintained at a desired size. The torsional deformation and bending of the frame 12 can be reduced.

  In addition, the 2nd lower flange 45 may have the inclination part 45a which inclines below as it goes to a front-end | tip, ie, toward a ridge side. Thereby, the inclination part 45a can work as a guide at the time of installing the 2nd solar cell module 3b, and can improve workability.

  In the present embodiment, the spacer 5 extends from the upper coupling portion 33a of the spacer 5 toward the second solar cell module 3b and is in contact with the frame upper surface 12b of the second solar cell module 3b. 46.

  With such a configuration, the second lower flange 45 and the second upper flange 46 can be engaged with the frame 12 of the second solar cell module 3b, and the dropout of the spacer 5 can be more preferably reduced. The upper surface of the second upper flange 45 can be substantially parallel to the frame upper surface 12b.

  The length along the y-axis direction of the second upper flange 46 may be smaller than the length along the y-axis direction of the frame upper surface 12b so as not to cast a shadow on the power generation region of the solar cell module 3.

<Eighth Embodiment>
Next, a solar cell array according to an eighth embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 8, the solar cell array according to the present embodiment is different from the first to seventh embodiments in the structure of the spacer 5.

  In this embodiment, the spacer 5 has the leg part 48 which protrudes toward the non-light-receiving surface side from the lower connection part 33b. The leg 48 is also separated from the inclined surface 2 as shown in FIG. Therefore, also in the present embodiment, the spacer 5 is held by the frame 12 of the first solar cell module 3a and the frame 12 of the second solar cell module 3b.

  Since the solar cell array of the present embodiment has the above-described leg portion 48, even when a large snow load is applied to the solar cell array 1, the frame 12 of the solar cell module 3 is formed by the leg portion 48. Can be supported to reduce bending. Thereby, the intensity | strength of the solar cell array 1 can be raised further.

  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 array 2: Inclined surface 3: Solar cell module 3a: First solar cell module 3b: Second solar cell module 4: Fixing member 5: Spacer 11: Solar cell panel 11a: Light receiving surface 11b: Non-light receiving surface 12 : Frame 12a: Fitting portion 12b: Frame upper surface 12c: Frame lower surface 12d: Frame side surface 13: Back surface protection member 14: Translucent substrate 15: Sealing material 16: Inner lead 17: Solar cell element 18: Terminal box 21: Lower member 22: Middle member 23: Upper member 24: Fastening member 25: Wood screw 26: Adhesive member 31: 1st contact part 31a: 1st part 31b: 2nd part 32: 2nd contact part 33a: Upper connection part 33b: Lower connecting portion 34: Mounting means 35: Body portion 36: First upper flange 37: First lower flange 41: First convex portion 42: Second convex portion 43: Third convex portion 44: Bent portion 4 a: first inclined plane 44b: second inclined plane 44c: flat surface 45: second lower flange 45a: inclined section 46: second upper flange 47: the buffer material 48: leg

Claims (14)

A plurality of solar cell modules having a frame at the outer edge and arranged along the first direction;
A fixing member for fixing a corner of the frame to an installation surface;
A solar cell disposed between two solar cell modules adjacent to each other in the first direction and having a spacer disposed in an intermediate portion of the frame in a second direction perpendicular to the first direction; array. The spacer is
A main body having a first contact portion that contacts the frame of one of the two solar cell modules, and a second contact portion that contacts the frame of the other solar cell module;
A first upper flange and a first flange extending from the main body portion toward the one solar cell module and abutting the upper surface and the lower surface of the frame of the one solar cell module to sandwich the one solar cell module, respectively. The solar cell array according to claim 1, comprising a lower flange. The main body has an upper connecting part and a lower connecting part that connect the first contact part and the second contact part,
The first contact portion is disposed on the other solar cell module side so as to be separated from the second contact portion, and is connected to the upper connection portion from the upper connection portion to the lower connection portion. A first portion extending toward the upper portion, and a second portion spaced apart from the first portion and connected to the lower connecting portion and extending from the lower connecting portion toward the upper connecting portion. The solar cell array according to claim 2.   4. The solar cell array according to claim 3, wherein the second portion of the first contact portion has a third convex portion that engages with a side surface of the frame of the one solar cell module at a tip portion. .   5. The solar cell array according to claim 3, wherein the first portion of the first contact portion includes a buffer member disposed on a surface of the one solar cell module on the frame side. The first upper flange has a first convex portion that engages with the upper surface of the frame of the one solar cell module at a tip portion,
6. The solar cell array according to claim 2, wherein the first lower flange has a second convex portion that engages with the lower surface of the frame of the one solar cell module at a tip portion. .   The solar cell array according to claim 2, wherein the first lower flange has a concave bent portion on the solar cell module side. The bent portion includes a first inclined surface positioned on the tip end side, a second inclined surface positioned on the main body portion side, and a flat surface positioned between the first inclined surface and the second inclined surface. Have
The solar cell array according to claim 7, wherein an inclination angle of the first inclined surface with respect to the flat surface is larger than an inclination angle of the second inclined surface with respect to the flat surface.   The spacer further includes a second lower flange that extends from the main body portion toward the other solar cell module and contacts the lower surface of the frame of the other solar cell module. The solar cell array according to any one of 8.   The solar potential array according to claim 9, wherein the second lower flange has an inclined portion that is inclined downward toward the tip at the tip.   11. The spacer according to claim 10, further comprising a second upper flange that extends from the main body portion toward the other solar cell module and abuts against an upper surface of the frame of the other solar cell module. Solar array.   12. The solar cell array according to claim 11, wherein an upper surface of the second upper flange is a flat surface substantially parallel to an upper surface of the frame of the other solar cell module.   The solar cell array according to any one of claims 2 to 12, wherein the spacer further includes a leg portion projecting from the lower connection portion toward the non-light-receiving surface. The solar cell array according to any one of claims 1 to 13, wherein the spacer is disposed apart from the installation surface.