JPWO2016117083A1 - Solar cell module - Google Patents

Abstract

The solar cell module has a female output connector (20) attached to a solar cell panel (20) for converting sunlight into electric power and a first output cable (21) electrically connected to the solar cell panel (20). 23), a male output connector (24) attached to a second output cable (22) electrically connected to the solar cell panel (20), and a frame-like frame surrounding the solar cell panel (20) ( 10), the reinforcing frame (3) spanned over the frame-like frame (10) on the back side of the solar cell panel (20), and the solar cell panel (20) and the reinforcing frame (3). And a cushioning material (35) that suppresses the deflection of the solar cell panel (20). The cushioning material (35) includes a flat portion (36) in contact with the reinforcing frame (3) and a female output connector (23). ) And male type mating And (38), a female fitting portion fitted with the male type output connector (24) and (39).

Description

  The present invention relates to a solar cell module configured by arranging a plurality of solar cells.

  A solar cell changes sunlight into electric power. Conventionally, in a solar cell module, a transparent substrate is arranged on the light receiving surface side, and a plurality of solar cells connected in series are arranged side by side on the back side of the transparent substrate, and the plurality of solar cells are sealed with a sealing resin. The structure which seals and comprises a solar cell panel, attaches a flame | frame to the peripheral part of a solar cell panel, or attaches a terminal box to the back surface is used.

  The solar cells are connected in series by internal lead wires. On the other hand, two positive and negative output cables are connected to the solar cell panel in order to take out the electric power generated by the solar cells. Generally, a terminal box is attached to the back surface of the solar cell panel, and an internal lead wire drawn from the solar cell panel and the output cable are connected in the terminal box.

  That is, the two output cables extend from the terminal box provided on the back surface of the solar cell panel. The output cable is connected to other solar cell modules or control equipment, but if the output cable hangs down from the terminal box, it will come into contact with other solar cell modules or control equipment, resulting in an obstacle to connection work. Or

  On the other hand, Patent Document 1 proposes to provide a cable holding portion which is a cable clip for holding the output cable in an engaged state at a predetermined position on the back surface of the solar cell panel. The solar cell module of Patent Document 1 includes a frame-shaped frame that surrounds the solar cell panel, a reinforcing frame that is spanned between the frame-shaped frames on the back side of the solar cell panel, and a space between the solar cell panel and the reinforcing frame. And a cushioning material that suppresses the deflection of the solar cell panel. In the solar cell module of Patent Document 1, the buffer material is a solar cell panel that does not hang down by causing the cable holding portion that holds the buffer material body and the output cable to hold the output cable extending from the terminal box to the cable holding portion. Can be routed on the back side.

Japanese Patent No. 5328923

  However, in the solar cell module disclosed in Patent Document 1, the output connector attached to the output cable is not fitted, and the connection terminals inside the output connector are easily corroded by moisture in the air. There was a problem that.

  This invention is made | formed in view of the above, Comprising: It aims at obtaining the solar cell module which ensured the corrosion resistance of the output connector, preventing the sagging of an output cable.

  In order to solve the above-described problems and achieve the object, the present invention provides a solar cell panel that converts sunlight into electric power, and a first electric circuit that is electrically connected to the solar cell panel and extracts electric power generated by the solar cell panel. A first output cable, a second output cable, a first output connector attached to the first output cable, a second output connector attached to the second output cable, and a frame surrounding the solar cell panel A frame-shaped frame, a reinforcing frame that spans the frame-shaped frame on the back side of the solar cell panel, and a flat portion that is disposed between the solar cell panel and the reinforcing frame and suppresses the deflection of the solar cell panel The cushioning material is provided with a fitting portion that fits the first and second output connectors.

  The solar cell module according to the present invention has an effect that it is possible to obtain a solar cell module that ensures the corrosion resistance of the output connector while preventing the output cable from drooping.

The figure which shows the mode of the initial stage process of the assembly of the solar cell module concerning embodiment of this invention. The perspective view which shows a mode that a reinforcement frame is attached to the intermediate assembly which attached the frame-shaped frame to the outer edge part of the solar cell panel of the solar cell module concerning embodiment from the back surface The perspective view which shows the state which the attachment of the reinforcement frame to the intermediate assembly of the solar cell module concerning embodiment completed Sectional drawing which shows a mode that the solar cell panel of the solar cell module concerning embodiment does not contact a reinforcement frame even if it receives pressure from the front side and bends The perspective view of the shock absorbing material of the solar cell module concerning embodiment The figure which shows the state before fitting with the buffer material of the solar cell module concerning embodiment, and an output connector The figure which shows the state after fitting with the buffer material and output connector of the solar cell module concerning embodiment

  Below, the solar cell module concerning embodiment of this invention is demonstrated in detail based on drawing. Note that the present invention is not limited to the embodiments.

Embodiment.
The whole structure of the solar cell module concerning embodiment of this invention is demonstrated using FIGS. 1-4. FIG. 1 is a diagram showing a state of an initial process of assembling a solar cell module according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating a state in which the reinforcing frame is attached from the back surface to the intermediate assembly in which the frame-like frame is attached to the outer edge portion of the solar cell panel of the solar cell module according to the embodiment. FIG. 3 is a perspective view illustrating a state where the attachment of the reinforcing frame to the intermediate assembly of the solar cell module according to the embodiment is completed. FIG. 4 is a cross-sectional view showing a state in which the solar cell panel of the solar cell module according to the embodiment does not come into contact with the reinforcing frame even when the solar cell panel is bent by pressure from the front side, and is a cross-section along line IV-IV in FIG. Is shown. In addition, FIG. 1 has shown a mode that the solar cell panel was seen from the light-receiving surface side. On the other hand, FIG.2 and FIG.3 has shown a mode that the solar cell panel was seen from the back surface side.

  The solar cell module 50 has a substantially rectangular flat plate shape, converts a solar cell panel 20 that converts sunlight into electric power, a first output cable 21 and a second output cable 22 that extract the generated electric power, and the solar cell panel 20. A terminal box 25 provided on the back surface for electrically connecting an internal lead wire built in the solar cell panel 20 to the first output cable 21 and the second output cable 22; and an outer edge of the solar cell panel 20 A rectangular frame-like frame 10 that surrounds the entire circumference, the reinforcing frame 3 attached to the frame-like frame 10, the solar cell panel 20, and the reinforcing frame 3. And a cushioning material 35 for suppressing the above. A female output connector 23 as a first output connector is attached to the first output cable 21, and a male output connector 24 as a second output connector is attached to the second output cable 22. ing. The female output connector 23 is attached to the end of the first output cable 21. The male output connector 24 is attached to the end of the second output cable 22. The buffer material 35 is fixed to a position where the reinforcing frame 3 is provided on the back surface of the solar cell panel 20.

  As shown in FIG. 1, the solar battery panel 20 is formed by arranging a plurality of solar battery cells 15 vertically and horizontally and has a substantially rectangular flat plate shape. The plurality of solar cells 15 are connected in series by internal lead wires (not shown). The frame-like frame 10 includes a pair of opposed long side frames 1, 1 and a pair of short side frames 2, 2 connected between both ends of the long side frames 1, 1. The pair of long side frames 1, 1 and the pair of short side frames 2, 2 are connected to each other to form a rectangular frame 10.

  As shown in FIG. 2, the buffer material 35 has a substantially flat plate shape and is fixed to the back surface of the solar cell panel 20. The buffer material 35 can be formed using a hard resin. The cushioning material 35 is fitted to the female output connector 24 attached to the female output connector 23 and the female output connector 23 attached to the female output connector 23 attached to the first output cable 21 and the second output cable 22. A female fitting part 39 is provided. The male fitting portion 38 and the female fitting portion 39 are fitting portions that are fitted to the female output connector 23 and the male output connector 24 that are the first and second output connectors.

  As shown in FIG. 3, notches 1 a and 1 a for fitting the reinforcing frame 3 are provided in the center of the back surface of the long side frames 1 and 1. The reinforcing frame 3 is assembled to the long side frames 1, 1 with the end portions 3 a, 3 a dropped into the notches 1 a, 1 a of the long side frames 1, 1 from the back side. The reinforcing frame 3 is attached to the frame-shaped frame 10 so as to span the pair of long-side frames 1, 1 facing the frame-shaped frame 10 at a position where the cushioning material 35 is sandwiched between the reinforcing frame 3.

  As shown in FIG. 4, the cushioning material 35 is large enough that the back surface of the solar cell panel 20 does not come into contact with the reinforcing frame 3 even when the solar cell panel 20 is bent under pressure from the front side as indicated by an arrow F in FIG. And a height that forms a gap.

  Next, the buffer material 35 of the solar cell module 50 according to the embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a perspective view of the buffer material of the solar cell module according to the embodiment. The cushioning material 35 has a flat surface portion 36 with which the reinforcing frame 3 contacts, a male fitting portion 38 with which the female output connector 23 is fitted, and a female fitting portion 39 with which the male output connector 24 is fitted. doing. The cushioning material 35 is preferably formed by molding the flat portion 36, the male fitting portion 38, and the female fitting portion 39 with a single mold, but the flat portion 36, the male fitting portion 38, and the female fitting. A structure in which the mating portion 39 and the mating portion 39 are separately molded and the male fitting portion 38 and the female fitting portion 39 are fixed to the flat portion 36 using an adhesive or a fitting structure may be used.

  FIG. 6 is a diagram illustrating a state before the buffer material of the solar cell module according to the embodiment is fitted to the male output connector and the female output connector. The female output connector 23 is pushed into the male fitting portion 38 from the direction indicated by the arrow in FIG. 6, and the male output connector 24 is pushed into the female fitting portion 39, whereby the female output connector 23 and the male fitting are fitted. The mating portion 38 is fitted, and the male output connector 24 and the female fitting portion 39 are fitted.

  FIG. 7 is a diagram illustrating a state after the buffer material of the solar cell module according to the embodiment is fitted to the male output connector and the female output connector. The female output connector 23 is fitted to the male fitting portion 38 and the male output connector 24 is fitted to the female fitting portion 39 to prevent the first output cable 21 and the second output cable 22 from drooping. can do. Furthermore, since the terminals of the female output connector 23 and the male output connector 24 are not exposed to air, corrosion due to moisture in the air can be suppressed.

  If the female output connector 23 and the male output connector 24 have an engagement structure, the female output connector 23 is provided by providing the male fitting portion 38 and the female fitting portion 39 with the same structure. However, it is possible to realize a structure in which it is difficult for the male output connector 24 to fall off from the male fitting portion 38 and the male output connector 24 to drop off from the female fitting portion. As the engagement structure, a structure in which a claw is provided on one of the female output connector 23 and the male output connector 24, a groove is provided on the other, and the claw and the groove are engaged can be applied. That is, when a claw is provided on one of the female output connector 23 and the male output connector 24 and a groove is provided on the other, a claw is provided on one of the male fitting portion 38 and the female fitting portion 39. By providing a groove on the other side, the male output connector 24 is less likely to drop off from the female fitting portion 39, and the female output connector 23 is less likely to drop off from the male fitting portion 38. it can.

  Thus, the solar cell module according to the embodiment can suppress the drooping of the first and second output cables and the corrosion of the output connector without significantly increasing the manufacturing cost.

  In addition, packing is provided in the male fitting part 38 and the female fitting part 39 so that the terminal part is hermetically sealed when the female output connector 23 and the male output connector 24 are fitted. Thus, the corrosion resistance of the terminal can be further increased.

  The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

  DESCRIPTION OF SYMBOLS 1 Long side frame, 1a Notch, 2 Short side frame, 3 Reinforcement frame, 3a End part, 10 Frame-shaped frame, 15 Solar cell, 20 Solar cell panel, 21 1st output cable, 22 2nd output cable , 23 female output connector, 24 male output connector, 35 cushioning material, 36 plane portion, 38 male fitting portion, 39 female fitting portion, 50 solar cell module.

Claims (5)

A solar panel that converts sunlight into electricity;
A first output cable and a second output cable that are electrically connected to the solar cell panel and take out the electric power generated in the solar cell panel;
A first output connector attached to the first output cable;
A second output connector attached to the second output cable;
A frame-like frame surrounding the solar cell panel;
A reinforcing frame spanned over the frame-like frame on the back side of the solar cell panel;
A cushioning material that is disposed between the solar cell panel and the reinforcing frame and has a flat surface portion that suppresses the deflection of the solar cell panel;
The said buffer material is provided with the fitting part fitted to the said 1st and 2nd output connector, The solar cell module characterized by the above-mentioned. The first output connector is attached to an end of the first output cable;
The solar cell module according to claim 1, wherein the second output connector is attached to an end portion of the second output cable.   The solar cell module according to claim 1 or 2, wherein the flat portion and the fitting portion are integrally formed.   The solar cell module according to claim 1 or 2, wherein the flat portion and the fitting portion are fixed by an adhesive.   The solar cell module according to claim 1 or 2, wherein the flat portion and the fitting portion are fixed by a fitting structure.

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