JP2017036662A - Solar cell array - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell array in which a load carrying capacity can be increased.SOLUTION: A solar cell array includes: two first solar cell modules 1 in a polygonal shape and one second solar cell module 2 in a square shape. The one first solar cell module is arranged so that a second side 1b of the one first solar cell module and an upper side 2a of the second solar cell module are opposed to each other. The other first solar cell module is arranged so that a third side 1c of the other first solar cell module and a second side 2d on a second side of the second solar cell module are opposed to each other. When a shortest distance from an intersection 1q between a virtual line 1pa extending from the other end 1h of a fourth side 1d of the first solar cell module along a longitudinal direction of the fourth side and a virtual line 1pb extending from the other end 1g of the second side 1b of the first solar cell module along a longitudinal direction of the second side up to the other end of the second side is D, a first side has a length of nD (n is an integer of 1 or more), the second side has a length of mD (m is an integer larger than n), and the upper side and a lower side have a length of 2D.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a solar cell array.

  In recent years, a solar cell array in which a plurality of solar cell modules are installed on a roof of a house has been promoted. Such a solar cell module is generally rectangular.

  However, there are various roof shapes on which the solar cell array is installed, for example, a dormitory roof. The shape of each surface of the dormitory roof (hereinafter referred to as the roof surface) is a triangle or a trapezoid. Therefore, when a rectangular solar cell module is used, it is difficult to install the solar cell module along the corner ridge. Therefore, the space between the corner building of the roof and the solar cell module increases, and the mounting capacity of the solar cell module (solar cell array) on the roof surface decreases.

  Thus, it has been proposed to use a solar cell module having a hypotenuse along the corner ridge of the dormitory roof (see, for example, Patent Document 1).

JP 2006-274660 A

  The shape of the roof surface on the dormitory roof varies. Therefore, the angle between the corner building and the eaves differs depending on the building. Therefore, the angle of the hypotenuse of the solar cell module is determined in accordance with the angle formed by the average corner ridge and the eaves.

  However, if the angle deviates from the average value, the difference between the angle along the corner ridge of the solar cell array on which the solar cell module is mounted and the angle formed between the corner ridge and the eaves of the roof surface is growing. Therefore, the distance between the solar cell array and the corner ridge on the roof surface tends to increase. Thereby, the mounting capacity of the solar cell array on the roof surface may be reduced.

  One object of the present invention is to provide a solar cell array having a high mounting capacity even in various roof surface shapes.

  A solar cell array according to an aspect of the present invention is a solar cell array having two polygonal first solar cell modules and one quadrangular second solar cell module, wherein the first solar cell module includes: The first side, the second side parallel to the first side, the third side connecting the one end of the first side and the one end of the second side so as to be orthogonal to the first side and the second side , One end is connected to the other end of the first side, the fourth side is inclined in a direction away from the third side as it goes from the first side to the second side, and the second side The second solar cell module has a fifth side parallel to the third side connecting the other end and the other end of the fourth side, and the second solar cell module includes an upper side, a lower side parallel to the upper side, the upper side and the One end of the upper side and one end of the lower side so as to be orthogonal to the lower side And a second side having the same length as the third side connecting the other end of the upper side and the other end of the lower side so as to be orthogonal to the upper side and the lower side. One of the first solar cell modules is arranged such that the second side of the one first solar cell module and the upper side of the second solar cell module face each other in parallel. The first solar cell module is arranged so that the third side of the other first solar cell module and the second side of the second solar cell module are parallel and both face each other over the entire length. A virtual line extending from the other end of the fourth side along the longitudinal direction of the fourth side and a virtual line extending from the other end of the second side along the longitudinal direction of the second side. When the shortest distance from the intersection to the other end of the second side is D, The length of the first side is nD (n is an integer of 1 or more), the length of the second side is mD (m is an integer larger than n), and the lengths of the upper side and the lower side are 2D.

  According to the above-described solar cell array, the virtual line extending from the other end portion of the fourth side of the first solar cell module along the longitudinal direction of the fourth side and the other end portion of the second side of the first solar cell module. The second solar cell module by the length (pitch) of the shortest distance D from the intersection with the imaginary line extending along the longitudinal direction of the second side to the other end of the second side of the first solar cell module Can be brought closer to the corner of the roof. Thereby, it becomes easy to arrange | position so that the 1st solar cell module located in the 2nd side edge side of a 2nd solar cell module may follow a corner ridge. As a result, the mounting capacity of the solar cell module on one roof surface increases.

It is a perspective view which shows a mode that the solar cell array was installed in the roof surface by 1st arrangement | positioning among the solar cell arrays which concern on 1st Embodiment of this invention. It is drawing which shows the solar cell array of the 1st arrangement | positioning which concerns on 1st Embodiment of this invention, (a) is a model figure which shows a mode that the solar cell array shown in FIG. 1 was seen from the light-receiving surface side, (b () Is a model diagram showing only the hatched portion of the solar cell array shown in FIG. 2 (a), and (c) is a model diagram showing the first solar cell module of the solar cell array. It is a perspective view which shows a mode that the solar cell array was installed in the roof surface by 2nd arrangement | positioning among the solar cell arrays which concern on 1st Embodiment of this invention. It is drawing which shows the solar cell array of 2nd arrangement | positioning which concerns on 1st Embodiment of this invention, (a) is a model figure which shows a mode that the solar cell array shown in FIG. 3 was seen from the light-receiving surface side, (b ) Is a model diagram showing the hatched portion of the solar cell array shown in FIG. It is a perspective view which shows a mode that the solar cell array was installed in the roof surface by 3rd arrangement | positioning among the solar cell arrays which concern on 1st Embodiment of this invention. It is drawing which shows the solar cell array of the 3rd arrangement | positioning which concerns on 1st Embodiment of this invention, (a) is a model figure which shows a mode that the solar cell array shown in FIG. 5 was seen from the light-receiving surface side, (b ) Is a model diagram showing the hatched portion of the solar cell array shown in FIG. It is a model figure which shows the cross section of the solar cell panel which is a part of solar cell module arrange | positioned at the solar cell array which concerns on 1st Embodiment of this invention. It is a figure which shows the 1st solar cell module used for the solar cell array which concerns on 1st Embodiment of this invention, (a) shows the top view seen from the light-receiving surface side, (b) shows Fig.8 (a). The top view which looked at the solar cell module from the back surface side is shown, (c) shows sectional drawing in the AA 'line of Drawing 8 (a), and (d) shows the BB' line of Drawing 8 (a). FIG. It is a figure which shows the 2nd solar cell module used for the solar cell array which concerns on 1st Embodiment of this invention, (a) shows the top view seen from the light-receiving surface side, (b) shows Fig.9 (a). The top view which looked at the solar cell module from the back side is shown, (c) shows the sectional view in the CC 'line of Drawing 9 (a), and (d) shows the DD' line of Drawing 9 (a). FIG. It is drawing which shows the solar cell array which concerns on 1st Embodiment of this invention, (a) shows sectional drawing in the EE 'line of FIG. 1, (b) expands the F section of Fig.10 (a). FIG. It is drawing which shows the solar cell array which concerns on 1st Embodiment of this invention, (a) is a perspective view which decomposes | disassembles and shows the F section of FIG. 10, (b) is the assembled state of the F section of FIG. It is a perspective view which shows a mode. It is a model figure which shows the solar cell array which concerns on 2nd Embodiment of this invention. The solar cell array which concerns on 3rd Embodiment of this invention is shown, (a) is a model figure, (b) is the model which extracts and shows the hatching part among solar cell arrays shown to Fig.13 (a). It is a figure, (c) is a model figure which takes out and shows the 1st solar cell module of a solar cell array. The solar cell array which concerns on 3rd Embodiment of this invention is shown, (a) is a model figure, (b) is a model figure which takes out and shows the hatching part of the solar cell array shown to Fig.14 (a). It is. The solar cell array which concerns on 3rd Embodiment of this invention is shown, (a) is a model figure, (b) is the model figure which takes out and shows the hatching part of the solar cell array shown to Fig.15 (a) It is. It is a model figure which shows the solar cell array which concerns on 4th Embodiment of this invention. The solar cell array which concerns on other embodiment is shown, (a) is a model figure, (b) is a model figure which extracts and shows a hatching part among solar cell arrays shown to Fig.17 (a). . The solar cell array which concerns on other embodiment is shown, (a) is a model figure, (b) is a model figure which takes out and shows the hatching part of the solar cell array shown to Fig.18 (a).

  A solar cell array according to an embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIGS. 1 to 6, the solar cell array 11 according to the first embodiment includes a plurality of polygonal first solar cell modules 1 and a plurality of quadrangular second solar cell modules 2. ing. Furthermore, the solar cell array 11 has a rail member 13 that fixes the first solar cell module 1 and the second solar cell module 2 on the roof surface 12.

  Next, members constituting the solar cell array 11 will be described. In the following description, in the surface direction of the roof surface 12, a direction perpendicular to the inclination direction of the roof surface 12 is defined as an x direction, and a direction parallel to the inclination direction of the roof surface 12 is defined as a y direction. The direction perpendicular to the roof surface 12, that is, the direction perpendicular to both the x direction and the y direction is defined as the z direction. Moreover, in description of FIG.1, FIG.3 and FIG.5, the upward direction (ridge side) of the inclination of the roof surface 12 is made into upper side in each figure, and the downward direction (eave side) of the inclination of the roof surface 12 is made into lower side. .

≪Schematic configuration of solar cell module≫
The first and second solar cell modules include, for example, a solar cell panel 21 and a frame 22 disposed on the outer periphery of the solar cell panel 21 as shown in FIGS.

  As shown in FIG. 7, the solar cell panel 21 has a light receiving surface 21a that mainly receives light and a non-light receiving surface 21b corresponding to the back surface of the light receiving surface 21a. The solar cell panel 21 includes, in order from the light receiving surface 21a side, a plurality of solar cells 26, a filler 24, a back surface protection member 27, and a terminal box connected by a translucent substrate 23, a filler 24, and inner leads 25. 28. Therefore, in the present embodiment, the light receiving surface 21 a of the solar cell panel 21 is the surface (front surface) of the translucent substrate 23. On the other hand, the non-light-receiving surface 21 b of the solar cell panel 21 is the back surface of the back surface protection member 27.

  The translucent substrate 23 functions as a substrate for the first and second solar cell modules. Examples of such translucent substrate 23 include tempered glass or white plate glass.

  The pair of fillers 24 have a function of sealing the solar cells 26. Examples of such filler 24 include thermosetting resins such as ethylene vinyl acetylate copolymer.

  The inner lead 25 has a function of electrically connecting adjacent solar cells 26 to each other. As such an inner lead 25, for example, a copper foil coated with solder for connecting to the solar battery cell 26 can be cited.

  The solar battery cell 26 has a function of converting incident light into electricity. Such a solar battery cell 26 has, for example, a substrate made of single crystal silicon, polycrystalline silicon, or the like, and electrodes provided on the front surface (upper surface) and the rear surface (lower surface) of the substrate. The solar battery cell 26 having a single crystal silicon substrate or a polycrystalline silicon substrate has a quadrangular shape. At this time, the magnitude | size of the one side of the photovoltaic cell 26 should just be 100-200 mm, for example. In the solar cell 26 having such a silicon substrate, for example, an electrode located on the surface of one solar cell 26 and an electrode located on the back surface of the other solar cell 26 among the adjacent solar cells 26. Are electrically connected by an inner lead 25. Thereby, the some photovoltaic cell 26 is arranged so that it may be connected in series.

  In addition, the kind in particular of the photovoltaic cell 26 is not restrict | limited. For example, a thin film solar cell made of a material such as amorphous silicon, CIGS, or CdTe may be employed. As the thin film solar cell described above, for example, a glass substrate on which a photoelectric conversion layer such as an amorphous silicon layer, a CIGS layer, or a CdTe layer, a transparent electrode, and the like are appropriately stacked can be used. Such a thin film solar cell is obtained by patterning and integrating a photoelectric conversion layer and a transparent electrode on a glass substrate. Therefore, the thin film solar cell does not use the inner lead 25. Note that the thin film solar cell has a strip shape. In the case of a thin film solar cell, the area of each element needs to be the same. Therefore, for example, when a thin film solar cell is used for the pentagonal first solar cell module 1, the width of each solar cell is set so that the areas of the electrically connected solar cells are the same. May be used after adjusting. Furthermore, the solar battery cell 26 may be of a type in which a thin film of amorphous silicon is formed on a single crystal or polycrystalline silicon substrate.

  The back surface protection member 27 has a function of protecting the back surfaces of the first and second solar cell modules. Such a back surface protection member 27 is bonded to the filler 24 located on the non-light-receiving surface 21 b side of the solar cell panel 21.

  The terminal box 28 takes out the output obtained by the solar battery cell 26 to the outside. The terminal box 28 includes a box, a terminal plate disposed in the box, and an output cable for leading power to the outside of the box. Examples of the material of the box include modified polyphenylene ether resin (modified PPE resin) and polyphenylene oxide resin (PPO resin).

  Next, the structure of the 1st solar cell module 1 and the 2nd solar cell module 2 is demonstrated in detail using FIG. 8 and FIG.

<First solar cell module>
For example, as shown in FIG. 8A, the first solar cell module 1 has a pentagonal shape having a hypotenuse (fourth side) on the right side on the paper surface. More specifically, it has a pentagonal shape in which one corner of a rectangular solar cell module is cut off. In addition, as the 1st solar cell module 1, as shown in FIG. 2, the aspect which has a hypotenuse on the left side is also included, for example.

  As shown in FIG. 8A and the like, the first solar cell module 1 has a first side 1a located on the upper side and a second side 1b parallel to the first side 1a. Furthermore, the first solar cell module 1 has a third side 1c that connects one end of the first side 1a and one end of the second side 1b so as to be orthogonal to the first side 1a and the second side 1b. Further, the first solar cell module 1 has a fourth side 1d that extends from the other end of the first side 1a and that corresponds to a hypotenuse that inclines in a direction away from the third side 1c toward the second side 1b. . Furthermore, the first solar cell module 1 has a fifth side 1e that is orthogonal to the second side 1b and connects the other end of the second side 1b and one end of the fourth side 1d. Further, in the following description, the corner formed by the first side 1a and the fourth side 1d is the first corner 1f, the corner formed by the second side 1b and the fifth side 1e is the second corner 1g, A corner formed by the four sides 1d and the fifth side 1e is defined as a third corner 1h, and a corner formed by the first side 1a and the third side 1c is defined as a fourth corner 1k. In the 1st solar cell module 1, the some solar cell panel 21 is arrange | positioned in the area | region inside a 1st side thru | or a 5th side.

  The frame 22 of the first solar cell module 1 has a function of holding the solar cell panel 21. That is, the frame 22 is a long member that reinforces the outer periphery of the solar cell panel 21 as shown in FIGS. 8 (a) and 8 (b). More specifically, as shown in FIGS. 8C and 8D, the frame 22 has a fitting portion 22a, a frame upper surface 22b, a frame bottom surface 22c, and a frame side surface 22d. The fitting portion 22 a is a portion that fits into the solar cell panel 21. The frame upper surface 22b is a portion corresponding to one main surface located on the side receiving sunlight. The frame bottom surface 22c is a portion corresponding to the other main surface located on the back surface side of the frame top surface 22b. The frame side surface 22d is a side surface that connects the frame upper surface 22b and the frame bottom surface 22c and is exposed to the outside.

  The frame 22 of the first solar cell module 1 is composed of two types, a first frame 22A and a second frame 22B. In the first solar cell module 1, the first frame 22A is used at least on the first side 1a and the second side 1b. The first frame 22A has a frame recess 22e extending in the longitudinal direction of the frame side surface 22d. The frame recess 22e engages with a rail member 13 described later. Such a frame 22 can be manufactured, for example, by extruding aluminum.

  Further, when the solar battery panel 21 including the rectangular solar battery cell 26 using a single crystal silicon or a polycrystalline silicon substrate is used, as shown in FIG. Solar cells 26 are arranged along the same direction as the first side 1a of one solar cell module 1 (the horizontal direction in the figure). At this time, the length of the first side 1a of the first solar cell module 1 may be one or more times the length of one side of the solar cell 26. Thereby, since the photovoltaic cell 26 can be made to adjoin to the 1st edge | side 1a, the occupation rate of the photovoltaic cell 26 in the photovoltaic module 1 can be raised. In the present embodiment, the length of the first side 1a is less than twice the length of one side of the solar battery cell 26. Thereby, it can be set as the aspect which makes the photovoltaic cell 26 adjoin to the 1st edge | side 1a, shortening the length of the 1st edge | side 1a. As a result, while increasing the occupancy ratio of the solar cells 26 in the first solar cell module 1, the first solar cell module 1 can be easily placed close to the upper side of a trapezoidal roof having a short upper side. Become.

  Further, by providing the fifth side 1e that connects the second side 1b and the fourth side 1d and is parallel to the y direction, the filling rate of the solar cells 26 into the first solar cell module 1 is increased and the effective light receiving area is increased. Can be increased. In the 1st solar cell module 1, the length of the 5th edge | side 1e should just be 1 time or more of the length of 1 edge | side in the up-down direction of the photovoltaic cell 26 in Fig.8 (a). As a result, the solar cells 26 are likely to be disposed close to the fifth side 1e, so that the area contributing to the photoelectric conversion of the first solar cell module 1 tends to increase.

  In addition, the angle of the corner ridge of a typical dormitory roof is about 45 °. Therefore, from the viewpoint of bringing the fourth side 1d close to the corner ridge with good design, the angle θ formed by the line parallel to the second side 1b and the fourth side 1d may be 60 ° or less. In addition, the aspect which does not have the flame | frame 22 may be sufficient as the 1st solar cell module 1. FIG.

<Second solar cell module>
As shown in FIGS. 9A and 9B, the second solar cell module 2 has a quadrangular shape. In addition, in this embodiment, although the 2nd solar cell module 2 has shown the rectangular aspect, a square may be sufficient.

As shown in FIG. 9A and the like, the second solar cell module 2 has an upper side 2a located on the upper side and a lower side 2b parallel to the upper side 2a. Further, the second solar cell module 2 has a first side 2c that is orthogonal to the upper side 2a and the lower side 2b and connects one end of the upper side 2a and one end of the lower side 2b. Further, the second solar cell module 2 has a second side 2d that is orthogonal to the upper side 2a and the lower side 2b and connects the other end of the upper side 2a and the other end of the lower side 2b.

  The frame 22 of the second solar cell module 2 is composed of two types, a third frame 22C and a first frame 22A having the same shape as the first solar cell module 1. In the second solar cell module 2, the first frame 22A is used at least on the upper side 2a and the lower side 2b. In the second solar cell module 2 according to this embodiment, the third frame 22C is used for the first side 2c and the second side 2d. In addition, the aspect which does not have the flame | frame 22 may be sufficient as the 2nd solar cell module 2. FIG.

≪Solar cell module arrangement pattern≫
Next, the arrangement pattern of the first and second solar cell modules constituting the solar cell array 11 will be described.

  In the solar cell array 11, the first frame 22A of the first solar cell module 1 and the first frame 22A of the second solar cell module 2 are fixed on the rail member 13 extending in the x direction. Specifically, as shown in FIGS. 10 and 11, the frame recess 22 e of the first solar cell module 1 and the frame recess 22 e of the second solar cell module 2 are engaged with the rail projection 13 a on the rail member 13. Thus, the first solar cell module 1 and the second solar cell module 2 are fixed to the roof surface 12. The rail member 13 is fixed on a fixing member 14 fastened on the roof surface 12 with wood screws or the like. As described above, the frame concave portion 22e of the first frame 22A and the rail member convex portion 13a of the rail member 13 extend in the x direction, and the first solar cell module 1 and the second solar cell module 2 are connected to the x direction. It can be fixed at any position in the direction. Thereby, the 1st solar cell module 1 and the 2nd solar cell module 2 can be arrange | positioned with a various pattern with respect to the roof surface 12 by using the rail member 13. FIG.

  Next, the arrangement pattern of the solar cell modules, that is, the appearance shape of the solar cell array 11 will be described with reference to the drawings. Here, the arrangement shown in FIGS. 1 and 2 will be described as a first arrangement 11a, the arrangement shown in FIGS. 3 and 4 as a second arrangement 11b, and the arrangement shown in FIGS. 5 and 6 as a third arrangement 11c. . In the following description, the two first solar cell modules 1 indicated by hatching in FIGS. 2, 4 and 6 are arranged on the upper side of the second solar cell module 2 indicated by hatching. One solar cell module 1 is defined as a first solar cell module 1A, and the first solar cell module 1 disposed on the right side of the second solar cell module 2 is defined as a first solar cell module 1B. Further, in FIG. 2, FIG. 4, and FIG. 6, the width in the x direction surrounded by the dotted line extending in the y direction is one pitch.

  Thereby, as shown in FIG.2 (c), the length of the 1st edge | side 1a of the 1st solar cell module 1 will be 1 pitch, and the length of the 2nd edge | side 1b will be 3 pitches. Further, the length of the upper side 1b of the second solar cell module 2 is 2 pitches. Further, as shown in FIG. 2C, in the first solar cell module 1, a fourth hypothesis extending along the longitudinal direction of the fourth side 1d from the other end (third corner 1h) of the fourth side 1d. The other end of the second side 1b from the intersection 1q of the line 1pa and the fifth virtual line 1pb extending along the longitudinal direction of the second side 1b from the other end (second corner 1g) of the second side 1b ( The shortest distance to the second corner 1g) is one pitch. When this shortest distance is the distance D, the length of the first side 1a of the first solar cell module 1 is 1D, the length of the second side 1b of the first solar cell module 1 is 3D, and the second The length of the upper side 2b of the solar cell module 2 is 2D. Thereby, in this embodiment, each edge | side of the 1st solar cell module 1 and the 2nd solar cell module 2 is shown by the integral multiple of the distance D. FIG.

  In the first arrangement 11a, as shown in FIG. 2 (b), the first side 2c of the second solar cell module 2 is located on the extension line of the third side 1c of the first solar cell module 1A. Further, the second side 2d of the second solar cell module 2 is located on the inner side of the solar cell array by 1 pitch (1D length) from the extension line of the fifth side 1e of the first solar cell module 1A. Yes. Moreover, 1 A of 1st solar cell modules are arrange | positioned so that the 2nd side 1b and the upper side 2a of the 2nd solar cell module 2 may oppose. On the other hand, the first solar cell module 1B is arranged such that the third side 1c and the second side 2d of the second solar cell module 2 face each other.

  In the first arrangement 11a, as shown in FIG. 2A, the sum of the lengths of the lower sides of the solar cell module row A including the first solar cell modules 1A arranged in the x direction is 10 pitches. is there. Furthermore, the total sum of the lengths of the upper sides of the solar cell module row B including the first solar cell modules 1B arranged in the x direction is also 10 pitches. Therefore, the solar cell array 11 having the first arrangement 11a includes the second corner portions 1g at both ends in the x direction in the solar cell module row A and the first corners at both ends in the x direction in the solar cell module row B. The corner portion 1f is positioned substantially coaxially along the y direction.

  Here, as shown in FIG. 2A, in the solar cell array 11, the solar cell module rows composed of a plurality of solar cell modules arranged in the x direction are connected to the solar cell module rows Y 1, Y 2, Y3. The above-described solar cell module row A corresponds to the solar cell module row Y2, and the solar cell module row B corresponds to the solar cell module row Y3. At this time, the interval between the first solar cell modules 1 located on both sides of the solar cell module row Y2 is 4 pitches (4D). Moreover, the space | interval of the 1st solar cell module 1 located in the both sides of the solar cell module row | line | column Y3 is 8 pitches (8D). In this way, in the first arrangement 11a, the interval between the first solar cell modules 1 of each of the solar cell module rows arranged in the x direction is 4 pitches (4D each time the solar cell module row is lowered by 1 row in the -y direction. ) Will gradually increase. Further, as shown in FIG. 2 (b), the second side 2d of the second solar cell module 2 is one pitch (1D long) from the extension line of the fifth side 1e of the first solar cell module 1A. Is located inside the solar cell array. Thereby, the space | interval of the 1st solar cell module 1 located in the both sides of the solar cell module row | line | column arrange | positioned at x direction is the 1st solar cell module 1 whenever a solar cell module row | line falls 1 row | line in a -y direction. The length 3D of the second side 1b is increased by 2 times the length obtained by subtracting D from the length 3D. This is expressed by the following equation.

Interval of first solar cell module 1 = 2 · (3D−D) · (Y−1) Equation 1
Y is a number obtained by counting the solar cell module rows from the + y direction side. That is, in FIG. 2A, Y = 1 in the solar cell module row Y1. In the solar cell module row Y2, Y = 2. In the solar cell module row Y3, Y = 3. From Formula 1, since the space | interval of the 1st solar cell module 1 of each solar cell module row | line becomes an integral multiple of 2D, arrange | position the 2nd solar cell module 2 between the 1st solar cell modules 1 without a clearance gap substantially. Can do.

  In this embodiment, since it has the 5th edge | side 1e which connects the 2nd edge | side 1b and the 4th edge | side 1d, as shown to Fig.2 (a), the angle of the corner building of a roof is the 4th edge | side with respect to the 3rd edge | side 1c. Even if the angle is smaller than 1d, there is no portion corresponding to the intersection 1q shown in FIG. 2C, and therefore the portion corresponding to the intersection 1q does not protrude from the solar cell array 11. Thereby, a solar cell array can be arrange | positioned close to the corner ridge of a roof, and the filling rate of the solar cell array (solar cell module) with respect to a roof can be raised.

  And the virtual line (henceforth 1st virtual line 11at) which models the external shape of the solar cell array 11 nearest to the corner ridge of the roof in which the solar cell array 11 in the first arrangement can be installed is shown in FIG. Thus, it shows with the virtual line which each passes along the 3rd corner | angular part 1h of 1A of 1st solar cell modules and 1B of 1st solar cell modules.

  As shown in FIG. 4B, the second arrangement 11b includes the second side 2d of the second solar cell module 2 and the first solar cell module on the extension line of the fifth side 1e of the first solar cell module 1A. It differs from the first arrangement 11a in that the third side 1c of 1B is located.

  Moreover, in 2nd arrangement | positioning 11b, as shown to Fig.4 (a), the sum total of the length of the lower side of the solar cell module row | line | column Y2 is 12 pitches. On the other hand, the sum of the lengths of the upper sides of the solar cell module row Y3 is 14 pitches. Then, the fourth side 1d of the first solar cell module 1B is positioned on the extension line of the fourth side 1d of the first solar cell module 1A. At this time, as shown in FIG. 4B, the first corner portion 1f of the second solar cell module 1B extends the second side 1b of the first solar cell module 1A by one pitch in the inclination direction of the fourth side 1d. At the position P. The angle θ of the first solar cell module 1A and the angle θ of the first solar cell module 1B are substantially the same, and the first side 1a of the first solar cell module 1A and the first solar cell module 1B are the first. The side 1b is one pitch long. Accordingly, the fourth side 1d of the first solar cell module 1A and the fourth side 1d of the second solar cell module 1B are located on substantially the same straight line.

  The interval between the first solar cell modules 1 located on both sides of the solar cell module row Y2 is 6 pitches (6D). Moreover, the space | interval of the 1st solar cell module 1 located in the both sides of the solar cell module row | line | column Y3 is 12 pitches (12D). Thus, in the second arrangement 11b, the interval between the first solar cell modules 1 in each solar cell module row arranged in the x direction is 6 pitches (6D every time the solar cell module row is lowered in the -y direction). ) Will gradually increase. Further, as shown in FIG. 4B, the second side 2d of the second solar cell module 2 and the third side of the first solar cell module 1B are arranged on the extension line of the fifth side 1e of the first solar cell module 1A. Since the side 1c is located, the interval between the first solar cell modules 1 located on both sides of the solar cell module row arranged in the x direction is such that the solar cell module row goes down one row in the -y direction. The length of the second side 1b of the first solar cell module 1 is increased by twice the length 3D. This is expressed by the following equation.

Interval between first solar cell modules 1 = 2 · 3D · (Y−1) Equation 2
Y is a number obtained by counting the solar cell module rows from the + y direction side. That is, in FIG. 4A, Y = 1 in the solar cell module row Y1. In the solar cell module row Y2, Y = 2. In the solar cell module row Y3, Y = 3. From Formula 2, since the space | interval of the 1st solar cell module 1 becomes an integral multiple of 2D, the 2nd solar cell module 2 can be arrange | positioned between the 1st solar cell modules 1 without a clearance gap substantially.

  Thereby, the virtual line (henceforth 2nd virtual line 11bt) which models the external shape of the solar cell array 11 nearest to the corner ridge of the roof in which the solar cell array 11 in the second arrangement 11b can be installed is the first solar cell. It is indicated by imaginary lines passing through the fourth side 1d of the module 1A and the fourth side 1d of the first solar cell module 1B.

  In the third arrangement 11c, as shown in FIG. 6B, the fourth corner 1k of the first solar cell module 1B is located on the extended line of the fourth side 1d of the first solar cell module 1A. This is different from the first arrangement 11a and the second arrangement 11b. In other words, the second side 2d of the second solar cell module 2 is one pitch (1D length) on the outer side of the solar cell array from the extension line of the fifth side 1e of the first solar cell module 1A. Is located.

  Moreover, in the 3rd arrangement | positioning 11c, as shown to Fig.6 (a), the sum total of the length of the lower side of the solar cell module row | line | column Y2 is 14 pitches. On the other hand, the sum total of the lengths of the upper sides of the solar cell module row Y3 is 18 pitches.

  And the virtual line (henceforth the 3rd virtual line 11ct) which models the external shape of the solar cell array 11 nearest to the corner ridge of the roof in which the solar cell array 11 in the third arrangement 11c can be installed is the first solar cell module. It is indicated by imaginary lines passing through the first corner 1f of 1A and the first corner 1f of the first solar cell module 1B.

  Moreover, as shown to Fig.6 (a), as for the solar cell array 11, the space | interval of the 1st solar cell module 1 located in the both sides of the solar cell module row | line | column Y2 is 8 pitches (8D). Moreover, the space | interval of the 1st solar cell module 1 located in both sides is 8 pitches (8D). Moreover, the space | interval of the 1st solar cell module 1 located in the both sides of the solar cell module row | line | column Y3 is 16 pitches (16D). Thus, in the third arrangement 11c, the interval between the first solar cell modules 1 arranged in the x direction increases by 8 pitches (8D) every time the solar cell module row goes down in the -y direction. Become. In more detail, as shown in FIG. 6B, the position of the second side 2d of the second solar cell module 2 is from the extension line of the fifth side 1e of the first solar cell module 1A. Is also located outside the 1 pitch (1D length) solar cell array. Thereby, the space | interval of the 1st solar cell module 1 located in the both sides of the solar cell module row | line | column arrange | positioned at x direction is the 1st solar cell module 1 whenever a solar cell module row | line falls 1 row | line in a -y direction. The length 3D of the second side 1b is increased by twice the length 3D. This is expressed by the following equation.

Interval between first solar cell modules 1 = 2 · (3D + D) · (Y−1) Equation 3
Y is a number obtained by counting the solar cell module rows from the + y direction side. That is, in FIG. 2A, Y = 1 in the solar cell module row Y1. In the solar cell module row Y2, Y = 2. In the solar cell module row Y3, Y = 3. From Formula 3, since the space | interval of the 1st solar cell module 1 becomes an integral multiple of 2D, it arrange | positions the 2nd solar cell module 2 between the 3rd sides 1c of the 1st solar cell module 1 almost without gap. Can do.

  In this embodiment, as shown in FIGS. 2, 4, and 6, the first side 1a of the first solar cell module 1A, the second side 1b of the first solar cell module 1B, and the upper side of the second solar cell module 2 are used. The length ratio of 2a is 1D: 3D: 2D = 1: 3: 2.

  The first solar cell module 1 includes a fourth imaginary line 1pa extending from the other end portion (third corner portion 1h) of the fourth side 1d along the longitudinal direction of the fourth side 1d, and the other end portion of the second side 1b. The shortest distance from the intersection 1q to the other end of the second side 1b (second corner 1g) with the fifth virtual line 1pb extending along the longitudinal direction of the second side 1b from the (second corner 1g) When D, the length of the first side 1a of the first solar cell module 1 is nD (n is an integer greater than 1), and the length of the second side 1b of the first solar cell module 1 is mD (m Is an integer greater than n), n = 1 and m = 3. The length of the upper side 2b of the second solar cell module 2 is 2D.

  Thereby, the arrangement | positioning which the solar cell module row | line | column A and the solar cell module row | line | column A spread one pitch at a time in the x direction can be selected now in order of the 1st arrangement | positioning 11a, the 2nd arrangement | positioning 11b, and the 3rd arrangement | positioning 11c. Therefore, the angles of the first imaginary line 11at, the second imaginary line 11bt, and the third imaginary line 11ct that represent the outer shape of each solar cell array 11 can be gradually changed. Therefore, for example, the arrangement of the solar cell modules can be set so that the angle of the corner building of the building roof on which the solar cell array 11 is installed substantially matches the virtual line of the solar cell array 11 described above. As a result, the mounting capacity of the solar cell module on one roof surface increases. In addition, the mounting capacity of the solar cell module is indicated by the ratio of the area when the installed solar cell module is viewed in plan with respect to the area of one roof surface.

  Furthermore, the space | interval of the 1st solar cell module 1 of each solar cell module row | line | column of the solar cell array 11 can be represented with the following Formula.

  Interval of first solar cell module 1 = 2 · (mD ± αD) · (Y−1) Equation 4

  In the above equation, mD is the length of the second side 1b of the first solar cell module 1. Y is a number obtained by counting the solar cell module rows from the + y direction side. That is, in FIG. 2A, FIG. 4A, and FIG. 6A, the solar cell module row Y1 is Y = 1. In the solar cell module row Y2, Y = 2. In the solar cell module row Y3, Y = 3. ± αD is a positional relationship between the fifth side 1e of the first solar cell module 1A and the second side 2d of the second solar cell module 2. Α is an integer. For example, as shown in FIG. 2 (a), the second solar cell module 2 has a pitch of 1 pitch inward of the solar cell array rather than on the extended line of the fifth side 1e of the first solar cell module 1A as in the first arrangement 11a. When the second side 2d is positioned, ± αD = −D. On the other hand, as in the third arrangement 11c, the second side 2d of the second solar cell module 2 is positioned at a pitch of 1 pitch outside the extension line of the fifth side 1e of the first solar cell module. If it is, ± αD = + D.

  From the equation 4, since the interval between the third sides 1c of the first solar cell module 1 is an integer multiple of 2D, the second solar cell module 2 is substantially placed between the third sides 1c of the first solar cell module 1. It can be arranged without a gap.

  Moreover, in this embodiment, since the solar cell module which has the ratio of the length of the side mentioned above is used, it can be set as regular arrangement | positioning. Thereby, the designability of the solar cell array 11 improves.

  Further, as described above, the length of the solar cell module rows arranged in the x direction can be increased or decreased in increments of 1 pitch. Therefore, like the solar cell module, the rail member 13 can use a common one in the first arrangement 11a and the second arrangement 11b, and selects either the first arrangement 11a or the second arrangement 11b. Also, the same type of rail member 13 can be used. The length of the rail member 13 is preferably M times the length of the first side 1a in the extending direction (M is an integer of 2 or more). At this time, the length of the rail member 13 should just be set to the extent which does not exceed the length in the x direction of a solar cell module row | line | column. Thereby, the number of rail members 13 can be reduced. In addition, for example, a plurality of rail members 13 having a length of 4 pitches and 6 pitches may be used in combination for the rail member 13 that supports the side having a length of 10 pitches, 12 pitches, or 14 pitches as described above. .

  The length of one pitch is not particularly limited, but may be, for example, 200 to 400 mm. The ratio of the lengths of the first side 1a of the first solar cell module 1A, the second side 1b of the first solar cell module 1B, and the upper side 2a of the second solar cell module 2 is 1: 3: 2. There may be an error of about ± 2%.

(Second Embodiment)
Next, a solar cell array according to a second embodiment of the present invention will be described with reference to FIG. The solar cell array 111A according to the present embodiment includes a third solar cell module having an upper side and a lower side N times (N is an integer of 2 or more) of the second solar cell module 2 in the x direction in the solar cell module row. 3 is different from the first embodiment in that 3 is used.

  In the solar cell array 111A according to this embodiment, since the third solar cell module 3 larger than the second solar cell module 2 in the first embodiment is used, the solar cell array 111A is installed on a relatively large roof. In this case, the number of solar cell modules used in the solar cell array 111A can be reduced. Furthermore, in this embodiment, the power transmission loss is reduced by reducing the number of wirings connecting the solar cell modules. Thereby, the loss of the generated electricity can be reduced. In addition, by using the third solar cell module 3 that is larger than the second solar cell module 2, the number of frames used per area of the solar cell array 111A can be reduced, and the number of manufacturing steps can be reduced.

  In addition, what is necessary is just to set the value of said N suitably in the range in which the length of the x direction of the 3rd solar cell module 3 does not exceed the length of the x direction of 111 A of solar cell arrays.

(Third embodiment)
Next, the solar cell array which concerns on 3rd Embodiment of this invention is demonstrated, referring FIG. 13 thru | or FIG. In the solar cell array 111C according to the present embodiment, the ratio of the lengths of the first side 1a of the first solar cell module 1, the second side 1b of the first solar cell module 1, and the upper side 2a of the second solar cell module 2 is the same. 2D: 5D: 2D = 2: 5: 2 is different from the solar cell arrays of the first and second embodiments.

  In the solar cell array 111C in the present embodiment, the first solar cell module 1 and the second solar cell module 2 have the following configuration. As shown in FIG.13 (c), the 1st solar cell module 1 is 4th virtual line 1pa extended along the longitudinal direction of 4th edge | side 1d from the other end part (3rd corner | angular part 1h) of 4th edge | side 1d. And the other end (second corner) of the second side 1b from the intersection 1q of the fifth virtual line 1pb extending from the other end (second corner 1g) of the second side 1b along the longitudinal direction of the second side 1b. When the shortest distance to the part 1g) is D, the length of the first side 1a is 2D, and the length of the second side 1b is 5D. Moreover, as shown in FIG.13 (b), the length of the upper side 2a of the 2nd solar cell module 2 is 2D. Thereby, the ratio of the lengths of the first side 1a of the first solar cell module 1, the second side 1b of the first solar cell module 1B, and the upper side 2a of the second solar cell module 2 is 2D: 5D: 2D. .

  Next, the arrangement (fourth to sixth alternative arrangements) of the solar cell module in the present embodiment will be described with reference to the drawings.

  First, the 4th arrangement | positioning 11d of 111 C of solar cell arrays of 3rd Embodiment is demonstrated using FIG. In the fourth arrangement 11d, the second side 2d of the second side 2d of the second solar cell module 2 is 2 pitches (2D length) from the extension line of the fifth side 1e of the first solar cell module 1A. Is located inside the solar cell array. And in the 4th arrangement | positioning 11d, the space | interval of the 1st solar cell module 1 located in the both sides of the solar cell module row | line | column Y2 is 6 pitches (6D). Moreover, the space | interval of the 1st solar cell module 1 located in the both sides of the solar cell module row | line | column Y3 is 12 pitches (12D). As described above, in the fourth arrangement 11d, the interval between the first solar cell modules 1 located on both sides in the x direction is such that the solar cell module 1 goes down one row in the -y direction. The length of the second side 1b increases by 2 times the length 5D minus 2D. This is expressed by the following equation.

Interval of first solar cell module 1 = 2 · (5D-2D) · (Y-1) (5)
Y is a number obtained by counting the solar cell module rows from the + y direction side. That is, in FIG. 13A, Y = 1 in the solar cell module row Y1. In the solar cell module row Y2, Y = 2. In the solar cell module row Y3, Y = 3. From Formula 5, since the space | interval of the 1st solar cell module 1 becomes an integral multiple of 2D, a 2nd solar cell module can be arrange | positioned between the 1st solar cell modules 1 without a clearance gap substantially.

  Next, the fifth arrangement 11e of the solar cell array 111C of the third embodiment will be described with reference to FIG. In the fifth arrangement 11e, the second side 2d of the second solar cell module 2 is one pitch (1D length) longer than the extension of the fifth side 1e of the first solar cell module 1A. Located inside. And in the 5th arrangement | positioning 11e, the space | interval of the 1st solar cell module 1 located in the both sides of the solar cell module row | line | column Y2 is 8 pitches (8D). Moreover, the space | interval of the 1st solar cell module 1 located in the both sides of the solar cell module row | line | column Y3 is 16 pitches (16D). As described above, in the fifth arrangement 11e, the interval between the first solar cell modules 1 located on both sides in the x direction is such that the rows of the solar cell modules are lowered by one row in the -y direction. The length is increased by twice the length 5D of the second side 1b minus D. This is expressed by the following equation.

Interval of first solar cell module 1 = 2 · (5D−D) · (Y−1) Equation 6
Y is a number obtained by counting the solar cell module rows from the + y direction side. That is, in FIG. 14A, Y = 1 in the solar cell module row Y1. In the solar cell module row Y2, Y = 2. In the solar cell module row Y3, Y = 3. From Formula 6, since the space | interval of the 1st solar cell module 1 becomes an integral multiple of 2D, a 2nd solar cell module can be arrange | positioned between the 1st solar cell modules 1 without a clearance gap substantially.

  Next, the sixth arrangement 11f of the solar cell array 111C of the third embodiment will be described with reference to FIG. The sixth arrangement 11f is positioned such that the second side 2d of the second solar cell module 2 is on the extension line of the fifth side 1e of the first solar cell module 1A. The interval between the first solar cell modules 1 located on both sides of the solar cell module row Y2 is 10 pitches (10D). Moreover, the space | interval of the 1st solar cell module 1 located in the both sides of the solar cell module row | line | column Y3 is 20 pitches (20D). As described above, in the sixth arrangement 11f, the interval between the first solar cell modules 1 located on both sides in the x direction is such that the first solar cell module 1 has an interval of one row in the y direction. The length increases by twice the length 5D of the two sides 1b. This is expressed by the following equation.

Interval between first solar cell modules 1 = 2 · 5D · (Y-1) Equation 7
Y is a number obtained by counting the solar cell module rows from the + y direction side. That is, in FIG. 15A, Y = 1 in the solar cell module row Y1. In the solar cell module row Y2, Y = 2. In the solar cell module row Y3, Y = 3. From Formula 6, since the space | interval of the 1st solar cell module 1 becomes an integral multiple of 2D, a 2nd solar cell module can be arrange | positioned between the 1st solar cell modules 1 without a clearance gap substantially.

  In the third embodiment, as in the first embodiment, the solar cell module row Y2 and the solar cell module row Y2 are arranged by one pitch on one side in the x direction in the order of the fourth arrangement 11d, the fifth arrangement 11e, and the sixth arrangement 11f. You can choose the arrangement to spread. Therefore, the angles of the fourth imaginary line 11dt, the fifth imaginary line 11et, and the sixth imaginary line 11ft that represent the outer shape of each solar cell array 111C can be gradually changed. Therefore, for example, the arrangement of the solar cell modules can be set so that the angle of the corner building of the building roof on which the solar cell array 11 is installed substantially matches the virtual line of the solar cell array 11 described above. As a result, the mounting capacity of the solar cell module on one roof surface increases. Moreover, the designability is also improved.

  As described above, also in this embodiment, the fourth virtual line 1pa extending along the longitudinal direction of the fourth side 1d from the other end portion (third corner portion 1h) of the fourth side 1d of the first solar cell module 1, And the other end (second corner) of the second side 1b from the intersection 1q of the fifth imaginary line 1pb extending along the longitudinal direction of the second side 1b from the other end (second corner 1g) of the second side 1b. The shortest distance D to the portion 1g), the length of the first side 1a of the first solar cell module 1 is nD (n is an integer of 1 or more), and the length of the second side 1b of the first solar cell module 1 is mD (m is an integer larger than n), and the length of the upper side 2b of the second solar cell module 2 satisfies the relationship of 2D (hereinafter referred to as the size relationship of the solar cell module sides). Thereby, like this embodiment, the ratio of the length of the first side of the first solar cell module, the second side of the first solar cell module, and the length of the second solar cell module is 2D: 5D: 2D. Even if it exists, the effect of this invention can be acquired similarly.

(Fourth embodiment)
Next, the solar cell array which concerns on 4th Embodiment of this invention is demonstrated, referring FIG. In the solar cell array 111D according to the present embodiment, the ratio of the lengths of the first side 1a of the first solar cell module 1, the second side 1b of the first solar cell module 1, and the upper side 2a of the second solar cell module 2 is the same. 2D: 4D: 2D = 2: 4: 2 is different from the solar cell array of the first to third embodiments.

  Even in such a fourth embodiment, the above-described size relationship between the solar cell modules is satisfied. Specifically, in this embodiment, n = 2 and m = 4. As shown in FIG. 16, even if the ratio of the lengths of the first side 1a, the second side 1b and the upper side 2a of the second solar cell module of the first solar cell module is 2D: 4D: 2D, Similarly, the effect of the present invention can be obtained.

(Other embodiments)
Next, a solar cell array according to another embodiment will be described with reference to FIGS. 17 and 18. The solar cell array 111B according to the present embodiment is the first solar cell module 1 used in the first to fourth embodiments in that the first solar cell module 1 has a trapezoidal shape that does not have the fifth side 1e. Is different.

  For example, in the arrangement of the solar cell array 111Ba shown in FIG. 17, the fourth side 1d of the first solar cell module 1 is aligned on the first virtual line 111Bat. In the arrangement of the solar cell array 111Bb shown in FIG. 18, the second corner portion 1g of the first solar cell module 1A and the fourth corner portion 1k of the first solar cell module 1B are aligned substantially coaxially in the y direction. . Thereby, in this embodiment, while being able to arrange | position a solar cell module regularly with sufficient designability similarly to 1st Embodiment and 2nd Embodiment, according to the angle of the corner ridge of the roof surface 12, of a solar cell module. An arrangement with a high mounting capacity can be selected as appropriate.

  As mentioned above, although embodiment of this invention was illustrated, this invention is not limited to the said embodiment, It cannot be overemphasized that it can be made arbitrary, unless it deviates from the objective of this invention. Needless to say, the present invention includes various combinations of the above-described embodiments.

1: First solar cell module 1a: first side 1b: second side 1c: third side 1d: fourth side 1e: fifth side 1f: first corner 1g: second corner 1h: third corner 1k: 4th corner 1pa: 4th virtual line 1pb: 5th virtual line 1q: intersection 1A: first solar cell module (upper side)
1B: First solar cell module (right side)
2: Second solar cell module 2a: Upper side 2b: Lower side 2c: First side 2d: Second side 3: Third solar cell module 11, 111A, 111B, 111Ba, 111Bb, 111C, 111D: Solar cell array 11a : First arrangement 11b: second arrangement 11c: third arrangement 11d: fourth arrangement 11e: fifth arrangement 11f: sixth arrangement 11at: first virtual line 11bt: second virtual line 11ct: third virtual line 11dt: first 4 virtual line 11et: 5th virtual line 11ft: 6th virtual line 12: roof surface 13: rail member 13a: rail convex part 14: fixing member 21: solar cell panel 21a: light receiving surface 21b: non-light receiving surface 22: frame 22A : First frame 22B: second frame 22c: third frame 22a: fitting portion 22b: frame upper surface 22c: frame bottom surface 22d: frame side surface 22e: Frame recess 23: light transmitting substrate 24: Filling material 25: inner leads 26: solar cell 27: back side protective member 28: terminal box

Claims (6)

A solar cell array having two polygonal first solar cell modules and one quadrangular second solar cell module,
The first solar cell module includes a first side, a second side parallel to the first side, the one end of the first side and the second side so as to be orthogonal to the first side and the second side. A third side connecting one end, one end connected to the other end of the first side, and a fourth tilted away from the third side toward the second side from the first side And a fifth side parallel to the third side connecting the other end of the second side and the other end of the fourth side,
The second solar cell module includes an upper side, a lower side parallel to the upper side, a first side that connects one end of the upper side and one end of the lower side so as to be orthogonal to the upper side and the lower side, and the upper side and The second side having the same length as the third side connecting the other end of the upper side and the other end of the lower side so as to be orthogonal to the lower side;
One said 1st solar cell module is arrange | positioned so that the said 2nd side of this one 1st solar cell module and the said upper side of the said 2nd solar cell module may face in parallel, and other said 1st solar cell module The battery module is arranged so that the third side of the other first solar cell module and the second side of the second solar cell module are parallel and both face each other over the entire length,
From the intersection of a virtual line extending from the other end of the fourth side along the longitudinal direction of the fourth side and a virtual line extending from the other end of the second side along the longitudinal direction of the second side When the shortest distance to the other end of the second side is D, the length of the first side is nD (n is an integer of 1 or more), and the length of the second side is mD (m is n A solar cell array in which the length of the upper side and the lower side is 2D.   The other end portion of the first side of the other first solar cell module and the other end portion of the second side of the one first solar cell module are the first of the first solar cell modules. Located on the same axis along five sides, or the other end of the first side of the other first solar cell module, and the other end of the second side of the one first solar cell module 2. The solar cell array according to claim 1, wherein a distance in the direction along the second side is an integer multiple of 1 or more of D. 3.   The ratio of the lengths of the first side of the first solar cell module, the second side of the first solar cell module, and the upper side of the second solar cell module is 1: 3: 2. 3. The solar cell array according to 1 or 2. An upper side, a lower side parallel to the upper side, a first side connecting one end of the upper side and one end of the lower side so as to be orthogonal to the upper side and the lower side, and the upper side and the lower side so as to be orthogonal to the upper side A quadrangular third solar cell module having a second side connecting the other end of the upper side and the other end of the lower side;
In the third solar cell module, the second side of the third solar cell module and the first side of the second solar cell module face each other, and the upper side of the third solar cell module and the The upper side of the second solar cell module is arranged in a straight line, and the length of the upper side of the third solar cell module is N times the length of the upper side of the second solar cell module ( The solar cell array according to any one of claims 1 to 3, wherein N is an integer of 2 or more. The first solar cell module has a solar cell panel in which a plurality of rectangular solar cells are arranged in a region inside the first side to the fourth side,
The solar cell has one side of the solar cell arranged in the same direction as the first side of the first solar cell module,
The length of the first side of the first solar cell module is one or more times and less than twice the length of the one side of the solar cell. Solar array. Longitudinal directions of the second side of the first solar cell module and the upper side of the second solar cell module fixed to the second side of the first solar cell module and the upper side of the second solar cell module. A rail member extending to
The length of the rail member in the longitudinal direction is M times the length of the first side of the first solar cell module in the longitudinal direction (M is an integer of 2 or more). The solar cell array according to any one of 5.

Images