JP5641502B2 - Solar panel wiring structure - Google Patents

Description

  The present invention relates to a solar cell panel wiring structure in which a solar cell panel can be directly laid on a field material or the like, and wiring work can be easily performed at the time of maintenance or replacement at the time of breakage.

2. Description of the Related Art Conventionally, two types of solar cell panels known as a pedestal type and a roof material type are known.
The pedestal type solar panel is a structure in which a support pedestal is assembled in a frame shape on an existing roof, and the panel itself does not require rain performance as a roof (not considered) ) And rain is dependent on the existing roof.
The roof type solar cell panel has a saddle-like member that allows rainwater to flow down on the base (base plate, steel frame) together with the crosspieces (vertical crosspieces, horizontal crosspieces) or as an integrated crosspiece. In this structure, a solar cell panel is installed on a crosspiece, and the rain is achieved by connecting hook-shaped members.

The gantry-type solar cell panel has an advantage that it can be applied to various roof surfaces, but on the other hand, since it is installed on the roof, it basically requires a roof and has a problem in design. Compared with this, since the solar cell panel of the said roof material type | mold itself comprises a roof surface, it is excellent in the designability.
The structure proposed in Patent Document 1 is an example of the solar cell panel of the roof material type, and a configuration in which a collar portion is formed on a rail-like support member is disclosed.

JP-A-7-180310

  In the structure of Patent Document 1, the description relating to the wiring of the solar cell panel cable is not mentioned at all. However, in many conventional structures, a method of wiring on the back surface side of the solar cell panel is employed. However, the method of wiring on the back side of the solar cell panel during maintenance or replacement at the time of breakage has a problem that the operation is extremely troublesome because it involves a removal operation every time.

  Therefore, the present invention provides a solar cell panel wiring structure in which a solar cell panel can be directly laid on a field material or the like, and wiring work can be easily performed at the time of maintenance or replacement at the time of breakage. The purpose is to propose.

The present invention has been proposed in view of the above, and is a wiring structure of a solar cell panel including a solar energy conversion module and a frame material surrounding the periphery thereof, and is arranged on at least one of the water side and the left and right sides. The frame material to be used includes an inner casing (horizontal inner casing, vertical inner casing) located on the back side of the solar energy conversion module and an outer casing (lateral outer casing, vertical outer casing) located on the outer side, respectively. Inner frame (= horizontal inner frame and vertical inner frame) between the frame material arranged on the water side and the frame material arranged on either one of the left and right sides, and outer cages (= horizontal outer cage) The vertical outer rods) are connected to each other, and the lower ends of the vertical piece portions hanging from the holding portions that hold the edge of the solar energy conversion module of the other frame material are located in the outer rods of the left and right frame materials. connected state, adjacent at the outer trough in It relates wiring structure of a solar cell panel, wherein the cable between the solar cell panel is connected.

  Further, in the wiring structure of the solar cell panel according to the present invention, each frame material arranged on the four sides includes a holding part that holds an edge of the solar energy conversion module, and a vertical piece part that hangs down from the holding part. The present invention also proposes a wiring structure for a solar cell panel, characterized in that, is provided.

  Furthermore, in the wiring structure of the solar cell panel according to the present invention, a drain cover is provided between the left and right frame members and the other frame member. A wiring structure is also proposed.

Wiring structure of a solar cell panel of the present invention, the lower end of the other side of the frame member are connected in a state located in the outer trough on one side of the frame member in the horizontal direction (Tategaitoi) at the outer trough in Since the solar panel cable is connected, the wiring work can be performed near the surface, so it is not always necessary to perform wiring on the back side of the conventional solar panel, especially when performing maintenance or replacement when damaged. There is no need to remove the solar cell panel and work can be carried out very easily.

  In addition, when each frame material arranged on the four sides is provided with a holding part that holds the edge of the solar energy conversion module and a vertical piece part that hangs down from the holding part, the space for performing the wiring work is left and right. It is carried out in a space surrounded by the vertical piece of the frame material.

  Furthermore, when a drainage cover is installed between the frame material on one side of the left and right and the frame material on the other side, for example, the connection part between the cables is not directly exposed to rainwater. There is no accelerated aging. In addition, when a light-shielding material is used as the drainage cover, aging due to irradiation with sunlight can be suppressed.

(A) The perspective view which shows one Example of the solar cell panel of this invention, (b) The top view. (A) It is a top view which shows the state which connected the said solar cell panel 2 steps | paragraphs in the flow direction, and 2 rows in the direction of a shift, (b) The side sectional view, (c) The front sectional view. (A) Front sectional view of a connecting portion in a state where the left and right frame members are close to each other, (b) a plan view showing the water-side edge, (c) the water It is a top view which shows a lower edge.

The solar cell panel used for the wiring structure of the solar cell panel of the present invention is composed of a solar energy conversion module and a frame material surrounding the periphery thereof, and at least the frame material arranged on either the water side or the left and right sides , Inner casing (horizontal inner casing, longitudinal inner casing) that is located on the back side of the solar energy conversion module and continuous in the length direction, and outer casing (lateral outer casing, located on the outer side and continuous in the length direction) And a vertical outer rod).
More specifically, the frame material arranged on the water side is provided with a horizontal inner rod and a horizontal outer rod that are continuous in the length direction, that is, the carry direction (lateral direction), on either one of the left and right sides. The arranged frame material is provided with a longitudinal inner rod and a longitudinal outer rod that are continuous in the length direction, that is, the flow direction (longitudinal direction).

And, inner frame (= horizontal inner frame and vertical inner frame) of the frame material arranged on the water side and the frame material arranged on either one of the left and right sides, outer cages (= horizontal outer frame and vertical outer) Ii) has been contacted.
More specifically, the horizontal inner collar of the frame material arranged on the water side and the vertical inner collar of the frame material arranged on either the left or right side are connected in an inverted L shape and arranged on the water upper side. A horizontal outer casing of the frame member and a vertical outer casing of the frame member arranged on either the left or right side are connected in an inverted L shape.

Each frame material arranged on the four sides is preferably provided with a holding portion for holding the edge of the solar energy conversion module and a vertical piece portion depending from the holding portion.
In this case, rain water can be guided to the outer casing through the outer surface side of the vertical piece portion, and condensed water can be guided to the inner casing through the inner surface side of the vertical piece portion.

  As for the frame material on the water side and the frame material on one side of the left and right, as described above, the inner casing and the outer casing are provided as essential components, but any other configuration may be adopted. Good. In addition, the frame material on the underwater side and the frame material on the other side on the left and right do not necessarily require such a configuration. For example, a simple configuration including a holding portion and a vertical piece portion may be used. Any configuration other than the above may be adopted.

As described above, the solar energy conversion module surrounds its periphery with a frame material, and various types of seal materials may be integrated around the periphery and held by the frame material via the seal material. The configuration and shape are not limited.
As this solar energy conversion module, any solar cell such as polycrystal, single crystal, and amorphous may be used. Generally, a solar cell is composed of a conductive substrate, a back surface reflection layer, a semiconductor layer as a photoelectric conversion member, and a transparent conductive layer. Examples of the conductive substrate include steel plates, copper, titanium, aluminum, stainless steel, and carbon sheets. In addition, a resin film such as polyester, polyimide, polyethylene naphthalide, and epoxy provided with a conductive layer, ceramics, and the like can also be used. The semiconductor layer is not particularly limited, and a compound semiconductor such as an amorphous silicon semiconductor, a polycrystalline silicon semiconductor, a crystalline silicon semiconductor, or copper indium selenide can be used. For example, recently proposed amorphous silicon solar cells having flexibility are preferable because they are extremely thin and lightweight.

Further, it is desirable that the frame material disposed on the water side is provided with an engagement receiving portion directed to the water side above the holding portion, and the frame material disposed on the water side has a lower end of the vertical piece portion. It is desirable to provide an engaging portion toward the water side.
When the engagement receiving portion and the engagement portion are provided in this way, the engagement portion can be engaged with the engagement receiving portion in the laying state, and positioning is properly performed when connecting in the flow direction. In addition, it can be temporarily fixed at an appropriate position when fixing the screw, and rainwater and condensed water can be reliably guided to the lower solar cell panel.

The wiring structure of the present invention using the solar cell panel having such a configuration is connected in a state where the lower end of the frame material on the other side is positioned within the outer casing (vertical outer casing) of the left and right frame members. The cable of the solar cell panel is connected (coupled) above the outer casing (vertical outer casing).
In addition, the upper side in the outer casing (vertical outer casing) means that the cable is disposed at a position where it does not immerse in the rainwater flowing through the bottom of the outer casing (vertical outer casing).

In this way, between the left and right frame material is the connection point of the cable, as shown in the illustrated embodiment described later, a drain cover mounting portion is provided at the upper ends of the left and right frame materials and the other side frame material. It is desirable that rainwater flow down in the flow direction on the upper surface of the drainage cover attached to the attachment portion.
This drainage cover is intended to prevent a large amount of rainwater from flowing into the outer fence (vertical outer fence) when there is a lot of rainfall such as heavy rain, and is connected above the outer fence (vertical outer fence). To prevent the cable from being exposed to rainwater or being soaked.
Of course, the cable itself and its connecting part are made of a material that is highly water-resistant (waterproof), but any material that can be exposed to or immersed in rainwater is preferable. It is desirable to install such a drainage cover.

  In addition, since it is desirable that the lower ends of the left and right frame members on the left and right sides are stably standing on the vertical outer flange of the one side frame member, the lower ends of the vertical piece portions are inward ( Alternatively, a standing portion bent in a substantially horizontal shape may be provided on the outer side.

  And in this wiring structure of this invention, it connects in the state which the lower end of the frame material of the other side is located in the outer casing (longitudinal outer casing) of the frame material of one side on either side, and it is a solar cell in this outer casing. Since the panel cable is connected, wiring work can be performed close to the surface, especially when performing maintenance or replacement when damaged, etc. Since there is no need to work, the work can be carried out very easily.

  The solar cell panel 1 used for the wiring structure of the present invention includes a solar energy conversion module 10 (hereinafter referred to as a solar cell) and frame materials 2A to 2D surrounding the periphery thereof, on either the water side or the left and right sides. The frame members 2A and 2B are arranged on the back surface side of the solar cell 10 and continuous in the length direction with the inner rods 23 (horizontal inner rods 23A and vertical inner rods 23B) and on the outer side and long. An outer casing 24 (lateral outer casing 24A, vertical outer casing 24B) that is continuous in the vertical direction is provided.

Each frame member 2A to 2D arranged on the four sides of the illustrated embodiment is provided with a holding portion 21 that holds the edge of the solar cell 10 and a vertical piece portion 22 that hangs down from the holding portion 21. .
Further, in the frame material 2A disposed on the right back side in FIG. 1A and on the water side shown in the upper side in FIG. 1B, a horizontal inner wall that is continuous in the length direction, that is, the carry direction (lateral direction). 23A and a lateral outer rod 24A are provided. The frame material 2B arranged on the right front side in FIG. 1A and on the right side in FIG. 1B has a length direction, that is, a flow direction (vertical direction). A vertical inner rod 23B and a vertical outer rod 24B that are continuous in the direction) are provided.
And the inner rods of the frame material 2A arranged on the water side and the frame material 2B arranged on the one side (= the horizontal inner rod 23A and the vertical inner rod 23B), the outer rods (= the horizontal outer rod 24A and the vertical outer rod)樋 24B) is connected in an inverted L shape.
In addition, in drawing, the edge of the solar cell 10 was shown with the dashed-two dotted line.

The holding portion 21 of the illustrated embodiment is formed in a substantially U shape in each of the frame materials 2A to 2D, and the vertical piece portion 22 is formed in a vertical plane shape.
Further, the inner collar 23 (horizontal inner collar 23A, vertical inner collar 23B) is formed from a substantially horizontal bottom surface and a vertical planar side surface extending inward from the vertical piece portion 22 in the frame materials 2A and 2B, The outer casing 24 (the lateral outer casing 24A and the vertical outer casing 24B) is formed from a substantially horizontal bottom surface and a vertical side surface extending outward from the vertical piece portion 22, respectively.

Further, the frame material 2A disposed on the water side is provided with an engagement receiving portion 25 directed to the water side above the holding portion 21, and the frame piece 2D disposed on the water side has a vertical piece 22. An engaging portion 26 directed toward the water side is provided at the lower end of the head.
Since the engagement receiving portion 25 and the engagement portion 26 are provided as described above, the engagement portion 26 can be engaged with the engagement receiving portion 25 in the laid state as shown in FIG. When connecting in the flow direction, the positioning is properly performed, and it can be temporarily fixed at an appropriate position when fixing the screw, and rainwater and dew condensation water can be reliably guided to the lower solar cell panel 1.

The solar cell panel 1 having such a configuration can be easily connected in a columnar shape in the flow direction and in a parallel shape in the carry direction as shown in FIG.
Moreover, about each frame material 2A-2D, it prepares as an extrusion type material of the cross-sectional shape as shown in figure, respectively, and each length should just be determined according to the dimension (length and width) of the solar cell 10 to be used, The solar cell panel 1 can be easily formed for any size solar cell 10.
In addition, about attachment (fixation of a corner part) of each frame material 2A-2D, it does not specifically limit, Although it is common to attach with a screw stop etc., you may make it fix by welding etc. Good. Moreover, since the operation | work which attaches each frame material 2A-2D to the periphery of the solar cell 10 and forms the solar cell panel 1 does not need to be performed on-site, and can be implemented in a factory, the operation on-site is performed. It can be minimized. For this reason, it is possible to minimize the noise and other problems that occur in the vicinity of the site.

Then, by using this solar cell panel 1, as shown in FIG. 2 (c), the vertical piece of the frame material 2C on the other side in the outer frame 24 (vertical outer frame 24B) of the frame material 2B on the left and right sides. The cable 101 is connected in a state where the lower end of the portion 22 is positioned, and the cable 101 extending from the terminal box 102 disposed on the back surface side of the solar cell panel 1 above the outer casing 24 (vertical outer casing 24B) can be freely vertically and horizontally. A wiring structure to be connected (linked) can be constructed.
In addition, the lower end of the vertical piece portion 22 of the frame member 2C on the other side of the illustrated embodiment is provided with a standing portion 221 bent in a substantially horizontal shape so as to be stably supported (standing).

Further, in the illustrated embodiment, a mounting portion 27 of the drainage cover 3 is provided in a substantially U shape at the upper ends of the frame material 2B on one side and the frame material 2C on the other side, and on the upper surface of the drainage cover 3 attached to the mounting portion 27. The rainwater was made to flow down in the flow direction.
As long as the drainage cover 3 is attached to the attachment portions 27, 27 formed at the upper ends of the frame members 2B, 2C, the specific configuration, shape, and material are not limited in any way. Thus, the left and right side edges may be bent upward, or may be a simple plate having a certain thickness, and may be made of metal, resin, or elastic rubber.

In the wiring structure of the present invention, the lower end (standing portion 221) of the vertical piece portion 22 of the frame material 2C on the other side is positioned in the outer rod 24 (vertical outer rod 24B) of the left and right frame materials 2B. Since the cable 101 of the solar cell panel 1 is connected in the outer casing 24B, the wiring work can be performed near the surface, especially in the case of maintenance, replacement at the time of breakage, etc. Since it is not always necessary to remove and operate the solar cell panel as in the case of wiring on the back side, the operation can be performed very easily. As described above, the cables 101 are connected to each other in the flow direction, so that the cable 101 is led from the lower end of the vertical piece portion 22 of the frame material 2B into the lower outer casing 24B, and the lower solar panel. 1 is connected to the cable 101 of the lower solar cell panel 1 by extending the inside of the vertical outer casing 24B.
As described above, in the illustrated embodiment, the cables 101 of the solar cell panels 1 adjacent to each other in the flow direction are connected in the lower vertical casing 24B, and the wiring structure is formed in series in the flow direction (vertical direction). However, the present invention is not limited to this, and the cables 101 of the solar cell panels 1 adjacent in the direction of the girder are connected in the lateral outer casing 24A on the lower side, and the wiring structure is connected in series in the direction of girder (lateral direction). May be formed, or may be connected vertically and horizontally as appropriate.

  In the illustrated embodiment, since the drainage cover 3 is arranged as described above, it is possible to prevent a large amount of rainwater from flowing in when there is a large amount of precipitation such as heavy rain. It is possible to prevent the connected cable 101 from being immersed in rainwater.

FIG. 3 shows a state in which the left and right frame members 2B and 2C are close to each other, and the left and right in the state where the cable 101 does not need to be connected as described above. It can also be said to be a connecting portion of adjacent panels.
However, in the case of connecting the solar cell panels 1 to the left and right, it is common that a predetermined work interval is required and an operator inserts a hand or a jig into the interval to perform the connection work. Connection work cannot be performed in close proximity.
Therefore, this FIG. 3 can also be said to be a mode in which the space between the left and right frame members 2B and 2C is not used as a connection space for the cable 101.

In addition, rainwater that enters from the gap between the solar cell panels 1 and 1 in the illustrated embodiment travels outside the vertical piece 22 to the inverted L-shaped outer casing 24 (lateral outer casing 24A, vertical outer casing 24B). Condensed water which is guided and is generated on the back side of the solar cell panel 1 is guided to the inverted L-shaped inner rod 23 (horizontal inner rod 23A, vertical inner rod 23B) along the inner side of the vertical piece portion 22, As apparent from the side sectional view shown in FIG. 2 (b), it is possible to construct a drainage structure in which these rainwater and dew condensation water are connected so as to be led to the outer casing 24 of the solar cell panel 1 adjacent to the lower stage.
That is, in the illustrated embodiment, the underwater side of the longitudinal inner collar 23B and the longitudinal outer collar 24B formed in the frame material 2B on one side is cut out (= the dimension is shortened), and the solar cell panel 1 whose lower edge is the lower stage. Therefore, the dew condensation water flowing through the vertical inner rod 23B and the rainwater flowing through the vertical outer rod 24B are surely guided to the outer rod 24 of the lower solar cell panel 1.

  In this drainage structure, rainwater entering from the gap between the solar cell panels 1 and 1 and dew condensation water generated on the back side of the solar cell panel 1 are drained in separate flow paths, and the conventional roofing material It is not necessary to arrange a separate bowl-like member like a solar cell panel of the type, and it is very easy to construct with only the solar cell panel 1 and does not require various sealing materials, and fulfills rain. Can do.

DESCRIPTION OF SYMBOLS 1 Solar cell panel 10 Solar cell 101 Cable 102 Terminal box 2A (Water side upper side) Frame material 2B (One side) Frame material 2C (Other side) Frame material 2D (Water side lower side) Frame material 21 Holding part 22 Vertical Single portion 221 Standing portion 23 Inner rod 23A Horizontal inner rod 23B Vertical inner rod 24 Outer rod 24A Horizontal outer rod 24B Vertical outer rod 25 Engagement receiving portion 26 Engaging portion 27 Mounting portion 3 Drain cover

Claims (3)

A solar cell panel wiring structure comprising a solar energy conversion module and a frame material surrounding its periphery,
The frame material disposed on at least one of the water upper side and the left and right sides is provided with an inner rod located on the back side of the solar energy conversion module and an outer rod located on the outer side, respectively. The inner collars of the frame material arranged on the side and the frame material arranged on either one of the left and right sides, the outer cages are communicated with each other,
Connected with the lower end of the vertical piece hanging from the holding part holding the edge of the solar energy conversion module of the other side frame material in the outer frame of the left and right side frame material , A solar cell panel wiring structure, wherein adjacent solar cell cables are connected to each other .   The frame material arranged on the four sides is provided with a holding portion that holds an edge of the solar energy conversion module, and a vertical piece portion that hangs down from the holding portion. Wiring structure of solar cell panel.   The wiring structure for a solar cell panel according to claim 1 or 2, wherein a drainage cover is provided between the left and right frame members and the other frame member.

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