JP2014232740A - Solar cell module and photovoltaic array - Google Patents

Abstract

A highly reliable wiring of a solar cell module is realized without a component for fixing a cable for connecting a plurality of solar cell modules. A solar cell module including a solar cell panel and a frame for supporting the solar cell panel, the cable for hooking a cable for electrically connecting a plurality of solar cell modules to the frame. By providing the notch, it is possible to provide a highly productive solar cell module in which the wiring cable can be arranged with a simple structure. [Selection] Figure 1

Description

  The present invention relates to a solar cell module and a solar cell array in which a plurality of solar cell modules are connected.

  In recent years, solar power generation systems that can obtain clean power without emitting carbon dioxide due to an increase in carbon dioxide emissions resulting from mass consumption of fossil fuels by thermal power generation, etc. Yes. In order to generate an electromotive force from sunlight, the photovoltaic power generation system is configured to obtain desired power by combining a plurality of photovoltaic cells that are integrated with a plurality of photovoltaic cells that perform photovoltaic power generation.

  Usually, a solar cell module includes a light-receiving surface protection plate made of translucent glass or plastic material, a solar cell sealing material such as sheet-like ethylene vinyl acetate (EVA), and the solar cell sealing material. Single-crystal silicon, polycrystalline silicon, amorphous silicon, compound semiconductor, and other solar cells sealed inside, and a laminate of back films that protect the solar cell sealing material from the back surface are integrated into a frame. It is configured to be incorporated. Moreover, the terminal box for taking out the electric power which a photovoltaic cell produces | generates, and the output cable connected to a terminal box are provided.

  FIG. 9 is a perspective view showing a conventional solar cell module. The solar cell module 50 has a substantially rectangular flat plate shape, a solar cell panel 51 that converts sunlight into electric power, a first output cable 52 and a second output cable 53 that extract the generated electric power, and the solar cell panel 51. A terminal box 54 provided on the back surface for electrically connecting an internal lead wire built in the solar cell panel 51 with the first output cable 52 and the second output cable 53, and an outer edge portion of the solar cell panel 50. A rectangular frame-like frame 55 that surrounds the entire circumference, a reinforcing frame 56 attached to the frame-like frame 55, and the solar cell panel 51 and the reinforcing frame 56 are arranged to suppress the deflection of the solar cell panel. And a buffer material 57 to be used. The buffer material 57 is fixed to a position where the reinforcing frame 56 is provided on the back surface of the solar cell panel 51. Further, a cable holding portion 58 that holds the first output cable 52 and the second output cable 53 is provided in the vicinity of the buffer material 57.

  The length of the output cable in the solar cell module as described above is determined based on the length of the path connecting the terminal boxes of adjacent modules, but it corresponds to the longest possible path or maintenance. In order to cope with the work of moving the solar cell sometimes, the length is set with a margin, and for example, the cable holding member 58 is attached to the solar cell module so that the excess cable is slack and does not come into contact with the roof or the like. Such as parts, clips, clamps etc. were installed and fixed.

WO2011 / 033638

  However, in the structure as described above, parts for holding and fixing the wiring, such as a cable holding member, a clip, and a clamp, are necessary to arrange the wiring cable on the back surface of the solar cell panel. For this reason, the structure of the solar cell module is complicated, which causes an increase in cost.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a highly reliable solar cell module and solar cell array that can reduce costs with a simple structure.

  A solar cell module of the present invention is a solar cell module including a solar cell panel and a frame for supporting the solar cell panel, and a cable for electrically connecting a plurality of solar cell modules to the frame. A solar cell module provided with a notch for stopping.

  In the solar cell module of the present invention, the frame includes a flange, and the notch includes a corner portion of the solar cell module provided on the flange.

  Moreover, the solar cell module of this invention contains what a notch is L-shaped.

  The solar cell array of the present invention is a solar cell array in which a plurality of solar cell modules including a solar cell panel and a frame for supporting the solar cell panel are electrically connected, and the frame is notched. A cable for electrically connecting a plurality of solar cell modules to the notch is provided.

  In the solar cell array of the present invention, the frame body includes a flange, and a cable is arranged between the solar cell panel and the flange along the flange.

  According to the present invention, it is possible to provide a highly productive solar cell module and a solar cell array in which wiring cables can be arranged with a simple structure.

It is a top view which shows the solar cell array of this invention. It is a fragmentary sectional view of the solar cell module of the present invention. It is a perspective view of the corner | angular part of the solar cell module of this invention. It is a perspective view of the corner | angular part of the solar cell module of this invention. It is a perspective view of the corner | angular part of the solar cell module of this invention. It is explanatory drawing which shows the corner | angular part of the solar cell module of a comparative example. It is a figure which shows the solar cell module which is the 2nd Embodiment of this invention. It is a figure which shows the solar cell module which is the 3rd Embodiment of this invention. It is a perspective view which shows the conventional solar cell module.

(Embodiment 1)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  FIG. 1 is a plan view showing a solar cell array of the present invention. This figure shows a part of the solar cell array as viewed from the lower side opposite to the light receiving surface. The solar cell array 1 is configured by electrically connecting a plurality of solar cell modules with cables. In FIG. 1, the solar cell module 10 and the solar cell module 10a are electrically connected.

  The solar cell module 10 includes a solar cell panel 11 that generates power using solar cells arranged on the light receiving surface, and a frame body 12 and a frame body 13 that are fitted on each side of the solar cell panel. Is provided with a flange 17. A terminal box 14 is attached to the surface of the solar battery panel 11 opposite to the light receiving surface, and is electrically connected to the solar cells arranged on the light receiving surface side. A connector 19 a provided at one end of the cable 18 a is connected to the plus terminal 15 of the terminal box 14. A connector 19b provided at one end of the cable 18b is connected to the negative terminal 16 of the terminal box 14.

  In the solar cell array 1, the solar cell module 10 and the solar cell module 10a are electrically connected in the longitudinal direction of the frame 12 of the solar cell module. Moreover, the longitudinal direction of the frame 13 is a direction orthogonal to the electrical connection direction of the solar cell module 10 and the solar cell module 10 a, and the cable is disposed so as to straddle the frame 13.

  Cutouts 20 a, 20 b, 20 c, and 20 d are provided in the flange 17 of the frame 12 at each of the four corners of the solar cell module 10. The cable 18a extending from the terminal box 14 is hooked on the notch 20a, and is wired between the flange 17 of the frame 12 and the solar cell panel 11 through the notch 20a so as to crawl on the flange. A connector 19c is attached to the end of the cable 18a opposite to the terminal box 14, and the connector 19c is connected to a connector 19d at the end of the cable 18c extending from the adjacent solar cell module 10a. A connection portion between the connector 19 c and the connector 19 d is between the flange 17 and the solar cell panel 11.

  The cable 18c is hooked to the notches 20b and 20e, and is routed to the terminal box 14a of the adjacent solar cell module 10a through the notches 20b and 20e. The connector 19e of the cable 18c is connected to the minus terminal 16a of the terminal box 14a. At the boundary between the solar cell modules 10 and 10a, the cable 18c is wired so as to pass under the flange and under the frame 13.

  The cable 18b is hooked to a notch 20c at the other corner of the solar cell module, and is connected to a terminal box of a solar cell module (not shown) on the right side through the notch 20c. Further, the connector 19f of the cable 18d is connected to the plus terminal 15a of the terminal box 14a provided in the solar cell module 10a. The cable 18d is hooked on the notch 20f, and is routed between the flange 17 of the frame 12 and the solar cell panel 11 through the notch 20f.

  The connector 19g of the cable 18d is connected to the connector 19h of the cable 18e. The cable 18e is hooked on the notch 20h, and further connected to a terminal box of a solar cell module (not shown) on the left side through the notch 20h.

  By providing the notch in the flange, the cable over the flange can be hooked with the notch, and the position of the cable is stabilized without using wiring members such as clips and clamps.

  In addition, since the notch is in the corner of the solar cell module, the cable is notched in the frame of the adjacent solar cell module via the lower side of the frame at the boundary with the adjacent solar cell module. Therefore, the wiring at the boundary portion between the adjacent solar cell modules becomes easy, and the workability during construction is improved.

  By hooking the cable connected to the terminal of the terminal box installed on the back side of the solar cell panel to the notch provided in the flange of the frame, there is no need to provide a clip or clamp for fixing the cable Since the cable can be properly wired, the cost can be reduced and workability at the time of construction is improved.

  In addition, the position of the solar cell module may need to be changed when performing post-construction inspection or panel replacement. In this case, it may be necessary to remove the cable or change the position. In the present invention, since the notch is provided in the frame portion of the solar cell module, it is easy to reach and the cable that has been laid on the flange becomes free just by removing the cable from the notch. Workability at the time of replacement and post-construction inspection is improved. The conventional cable holding portion is near the center of the panel, and is difficult to reach and inferior in workability.

  In addition, the cable and the cable connection section that lay over the flange are between the flange and the solar panel, and each cable is hooked at both ends of the flange, so the position of the connection section is stable. Therefore, the possibility of disconnecting the connector is reduced.

  FIG. 2 is a partial cross-sectional view of the solar cell module of the present invention. In the solar cell module 10, the end of the solar cell panel 11 is fitted to the frame body 12. The frame 12 has a flange 17 extending toward the inside of the solar cell module 10. The flange 17 is below the solar cell panel, and the cable 18 passes between the solar cell panel 11 and the flange 17. That is, the cable 18 is disposed between the flange 17 and the solar cell panel 11. By storing the cable 18 between the flange 17 and the solar cell panel 11, it is possible to prevent the cable from loosening and coming into contact with the roof or the like.

  FIG. 3 is a perspective view of a corner portion of the solar cell module of the present invention. Frame bodies 12 and 13 are fitted to each side of solar cell panel 11, and notch 20 is formed in flange 17 of frame body 12. The notch 20 includes a notch 22 in the short side direction of the flange 17 and a notch 23 in the long side direction. A gap having a width slightly larger than the diameter of the cable to be passed is formed between the flange 17 and the frame body 13 by the notch 22 in the short side direction. A notch 23 is formed in communication with the notch 22 in the long side direction of the flange 17. The width of the notch 23 is formed to a width corresponding to the diameter of the cable passing through the notch. Further, the back of the notch 23 is formed in a semicircular shape.

  Since the cutout at the corner of the solar cell module is an L-shaped cutout 20 comprising a cutout 22 in the short side direction and a cutout 23 in the long side direction, the cable is inserted into the cutout 22 and the flange 17 When guided in the direction, the cable is caught in the notch 23 and hooked, so that the cable can be easily fixed.

  In addition, when the solar cell module is moved for maintenance or the like, workability is improved because the cable can be opened simply by removing the hooked cable from the notch.

  FIG. 4 is a perspective view of the corner portion of the solar cell module of the present invention, and is a perspective view showing the periphery of the notch 20a of FIG. The cable 18a connected to the terminal box 14 is inserted from between the notch 22a and the frame 13, and is hooked by being pushed into the notch 23a. Further, the cable 18a hooked on the notch 20a is arranged so as to pass between the flange 17 and the solar cell panel 11 via the notch 20a.

  FIG. 5 is a perspective view of a corner portion of the solar cell module of the present invention. It is a perspective view which shows the notches 20b and 20e periphery of FIG. The cable 18c passes between the flange 17 and the solar cell panel 11, but is hooked on the notch 20b and passes through the outside of the flange 17 via the notch 20b. The frame 13 and the frame body 13 of the solar cell module 10a are passed through the notch 20e and are routed to the terminal box 14a via the notch 20e. Since the cable 18c is hooked by the notches 20b and 20e, the position of the cable is stabilized. Therefore, the workability at the time of construction is good, and the trouble of the cable hardly occurs.

The method of latching with the notch increases the work efficiency because the cable can be opened only by removing the cable from the notch even when the solar cell is moved for maintenance or the like.
(Comparative example)
FIG. 6 is an explanatory diagram showing corner portions of a solar cell module of a comparative example, and is an explanatory diagram showing a state of wiring when there is no notch. When there is no corner notch, the cable 38 needs to pass through a place deviating from the width of the flange 37 in order to cross the frame 33 at the boundary of the adjacent solar cell module. Moreover, since there is no place to latch, it becomes difficult to arrange | position a cable in the fixed place, without using a clip etc.
(Embodiment 2)
Next, a solar cell module according to a second embodiment of the present invention will be described with reference to the drawings.

  FIG. 7 is a diagram showing a solar cell module according to the second embodiment of the present invention. The configuration other than the shape of the frame and the wiring is the same as that of the solar cell module shown in FIG.

  Notches 20 a and 20 b are formed at both ends of the frame body 24, and notches 21 a and 21 b are formed near the center of the frame body 24. The cutouts 21a and 21b have a slightly larger width than the cable 18a, and the back is a semicircular cutout.

  The cable 18a connected to the terminal box 14 is hooked on the notch 20a, passes through the notch 20a, passes between the flange 17 of the frame 24 and the solar cell panel 11, and passes through the notch 21a. Then, it passes under the flange 17. The connector 19c of the cable 18a is connected to the connector 19d of the cable 18c that is connected to the terminal box of the adjacent solar cell module on the lower surface of the flange 17. The cable 18c passes between the flange 17 of the frame 24 and the solar cell panel 11 via the notch 21b, and is connected to the terminal box of the adjacent solar cell module via the notch 20b.

  Since the cables 18a and 18c are hooked to the frame body 24 by the four cutouts 20a, 20b, 21a and 21b, the cable can be securely routed along the flange 17 and the cable can be prevented from being displaced. Can do.

  Further, since the cable 18a is hooked in the vicinity of the connector 19c and the cable 18c is hooked in the vicinity of the connector 19d, the position of the connector connecting portion is between the notch 21a and the notch 21b. Since the position of is stable, the possibility of disconnection of the connector is reduced.

Further, since the cable connectors 19c and 19d are connected on the lower surface of the flange 17, the wiring can be checked from the outside, so that the maintenance work is simplified.
(Embodiment 3)
Next, a solar cell module according to a third embodiment of the present invention will be described with reference to the drawings.

  FIG. 8 is a diagram showing a solar cell module according to the third embodiment of the present invention. The configuration other than the shape of the frame and the wiring is the same as that of the solar cell module shown in FIG.

  Notches 20 a and 20 b are formed at both ends of the frame body 25. Further, notches 21 a and 21 b are formed near the center of the frame 25. Further, notches 21c and 21d are provided between the notches 20a and 21a. A notch 21e and a notch 21f are formed between the notch 20b and the notch 21b. The notches 21a, 21b, 21c and 21d each have a slightly larger width than the cable 18a, and the inner part of the notch is formed in a semicircular shape.

  The cable 18a connected to the terminal box 14 is hooked on the notch 20a and passes between the flange 17 of the frame 25 and the solar cell panel 11 via the notch 20a. Then, after passing through the lower surface of the flange 17 through the notch 21c, it passes between the flange 17 and the solar battery panel 11 through the notch 21d, and again through the notch 21a. It passes through the lower surface. Then, on the lower surface of the flange 17, the connector 19c of the cable 18a is connected to the connector 19d of the cable 18c.

  The cable 18c passes through the notch 21b, passes between the flange 17 and the solar cell panel 11, passes through the notch 21e, passes through the lower surface of the flange again, and is cut between the flange 17 and the solar cell panel 11 at the notch 21f. Pass between. And it connects to the terminal box of the solar cell module adjacent to power distribution of the adjacent solar cell module via the notch 20b.

  In this example, since the cables 18a and 18c are hooked by the notches 20a, 20b, 21a, 21b, 21c, 21d, 21e, and 21f of the frame body 25, the positions of the cables are stabilized. Moreover, even if the solar cell module becomes larger and the length of one side of the solar cell module becomes longer, it is possible to more reliably perform wiring along the frame body 25 by notching at appropriate intervals. Become.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 1 Solar cell array 10, 10a Solar cell module 11 Solar cell panel 12, 13, 24, 25 Frame 14, 14a Terminal box 15, 15a Positive terminal 16, 16a Negative terminal 17 Flange 18, 18a, 18b, 18c, 18d, 18e Cable 19a, 19b, 19c, 19d, 19e, 19f, 19g, 19h Connector 20a, 20b, 20c, 20d, 20e, 20f, 20g, 20h Notch 21a, 21b, 21c, 21d, 21e, 21f Notch 22 Notch Notch 23 Notch

Claims (5)

A solar panel,
A solar cell module including a frame for supporting the solar cell panel,
The solar cell module which provides the said frame with the notch for latching the cable which electrically connects a several solar cell module. The frame has a flange;
The solar cell module according to claim 1, wherein the notch is a corner of the solar cell module and is provided on the flange.   The solar cell module according to claim 1, wherein the notch is L-shaped. A solar panel,
A solar cell array formed by electrically connecting a plurality of solar cell modules including a frame for supporting the solar cell panel,
Provide a notch in the frame,
A solar cell array formed by hooking a cable for electrically connecting a plurality of solar cell modules to the notch. The frame has a flange;
The solar cell array according to claim 4, wherein the cable is arranged along the flange between the solar cell panel and the flange.