JPH09283783A - Frame of solar cell module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow the use of various kinds of metal materials which allow board-like molding and bending for a frame for a solar cell module by manufacturing frame constituting materials by bending the board material and connecting them. SOLUTION: Firstly, a board-like material is bent by means of a roll-forming method so as to manufacture frame-constituting materials 4A, 4B with a fitting groove part 16 each and cut to the lengths of four sides of a solar cell 2 followed by external fitting of this fitting groove part 16 to the outer periphery of a solar cell panel 2 so as to connect frame-constituting materials 4A, 4B along four sides of the solar cell 2 for manufacturing a frame. Further, as the board-shaped material a metal plate covered with a resin film consisting of vinyl chloride resin or the like is used for improving weather resistance and a plate thickness of this metal plate is set up to 0.3 to 0.8mm so as to reduce the weight of the frame to the utmost while securing strength and stiffness as the frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame of a solar cell module.

[0002]

2. Description of the Related Art A frame-shaped frame of a conventional general solar cell module is composed of a total of four frame components arranged one on each side of a solar cell panel. This frame-shaped frame is indispensable for ensuring the mechanical strength and reliability of the solar cell module,
In outdoor installations, it also has a function as a fixing means between the installation frame and the solar cell panel. As a conventional general frame component, aluminum or its alloy is widely used in consideration of weather resistance and weight reduction. As for the manufacturing method, the extrusion molding method, which enables continuous production, is widely adopted from the viewpoint of cost.

[0003]

However, although aluminum and its alloys are excellent in weather resistance and light in weight as compared with iron and the like, they are expensive materials, which is one of the causes for increasing the manufacturing cost. . In addition, in the extrusion molding method, since the lower limit of the plate thickness of the frame constituent material is limited and the plate thickness cannot be made thin, the material cost is further increased, which is one of the causes of the increase in the manufacturing cost of the solar cell module. Has become.

The present invention is to provide a frame-shaped frame for a solar cell module which can be manufactured at low cost and is lightweight.

[0005]

A frame-shaped frame of a solar cell module according to claim 1 is formed by bending a plate-shaped material so that the frame-shaped frame can be externally fitted to an outer edge portion of a solar cell panel and continuously fitted in the longitudinal direction. A frame component having a groove is manufactured, the fitting groove is externally fitted to the outer edge of the solar cell panel, and the frame component is connected and fixed in a frame shape along the outer edge of the solar cell panel.

Here, as described in claim 2, the frame constituent material is manufactured by a roll homing method.
As described above, a metal plate coated with a resin film is used as the plate-shaped material. As described in claim 4, the resin film is made of a resin material selected from vinyl chloride resin, fluorine resin, and acrylic resin. It is a preferred embodiment to use a metal plate, to set the plate thickness of the metal plate to 0.3 mm to 0.8 mm, as described in claim 5.

[0007]

In the frame-shaped frame of the solar cell module according to the present invention, the plate-shaped material is bent to form a frame constituent material, and the frame-shaped frame is manufactured by connecting the frame-shaped material to each other. As a metal material that can be formed into a plate shape and can be bent, various metal materials can be used. Further, since the frame constituent material is manufactured by using the plate-shaped material, it is possible to make the frame-shaped frame lightweight by reducing the plate thickness of the frame constituent material.

As a concrete method of manufacturing a frame-shaped frame, first, a plate-shaped material is bent by a roll homing method to manufacture a frame constituent material having a fitting groove portion, and the length of four sides of the solar cell panel is set. After cutting, the fitting groove portion is externally fitted to the outer edge portion of the solar cell panel, and the frame components are connected and fixed in a frame shape along the four sides of the solar cell panel,
A frame-shaped frame will be manufactured. Further, as the plate material, a metal plate coated with a resin film made of vinyl chloride resin, fluorine resin, acrylic resin, or the like is used to improve weather resistance, and the plate thickness of the metal plate is 0.3 mm to
The weight of the frame-shaped frame may be reduced as much as possible while maintaining the strength and rigidity of the frame-shaped frame by setting 0.8 mm.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2,
The solar cell module 1 includes a solar cell panel 2 and a frame 3 holding an outer edge thereof. The solar cell panel 2 has a generally flat, well-known configuration, in which a crystalline or amorphous solar cell element is disposed on the back side of a light-transmitting substrate.

As shown in FIGS. 1 to 5, the frame-like frame 3 is provided with a pair of frame components 4A extending in the vertical direction and a pair of frame components 4B extending in the horizontal direction. The frame components 4A and 4B are connected to each other by a connecting means 5 described later, so that the solar cell panel 2 is assembled in a frame shape in the outer edge portion. Incidentally, here, the frame components 4A, 4
B is different only in length, and the other configurations are exactly the same, but different configurations may be used.

The frame components 4A and 4B are manufactured by bending a plate-shaped material 6 as will be described later, and have a pair of vertical wall portions 10 and 11 arranged in series vertically and a vertical wall portion. 1
It has four extending portions 12 to 15 extending from one end of each of 0 and 11 to one side.

The two extension portions 12 and 13 on the upper side are arranged in parallel with each other with a distance substantially equal to the thickness of the solar cell panel 2, and the vertical wall portion 10 on the upper side and the upper side 2 on the upper portions of the frame components 4A and 4B. The solar cell panel 2 is formed by the extending portions 12 and 13 of the sheet.
Fitting groove portion 16 which is opened to one side for externally fitting and holding the outer edge portion of the
Are formed. Although not shown, it is possible to fill a sealant between the outer edge portion of the solar cell panel 2 and the fitting groove portion 16 or attach an elastic member. However, in this case, the distance between the extended portions 12 and 13 is set to be slightly larger than the thickness of the solar cell panel 2.

The lower vertical wall portion 11 and the lower two extending portions 1
Reference numerals 4 and 15 are for increasing the strength and rigidity of the frame components 4A and 4B. However, the frame components 4A, 4
If the cross-sectional shape of B has the fitting groove portion 16,
The frame-shaped frame 3 can be appropriately set in accordance with use conditions and assembly conditions, such as improvement or reduction of the strength of the frame-shaped frame 3 or a request when the frame-shaped frame 3 is mounted outdoors.

Both ends of the frame components 4A and 4B are about 4
The frame constituent members 4A and 4B are notched obliquely at 5 ° and the frame constituent members 4A and 4B are abutted at a substantially right angle, so that the end portions of the frame constituent members 4A and 4B that are adjacent to each other at the corners of the frame-shaped frame 3 are connected to each other without a gap. Incidentally, reference numeral 24 is a folded-back portion provided so as not to damage the fingers when assembling the frame-shaped frame 3.

The connecting means 5 for connecting the frame components 4A and 4B will be described. As shown in FIGS. 3 to 5, the frame members 4A and 4B are connected to the lower wall portion 11 near both ends thereof. Is formed with a pair of upper and lower bolt insertion holes 17, and between the vertical wall portions 11 on the lower sides of the adjacent frame components 4A and 4B, a substantially L-shaped connecting plate 1 is formed along the inner surface thereof.
8 are provided. Then, the adjacent frame components 4A, 4B are fastened to the connecting plate 18 applied from the inside by the two bolts 19 and the nuts 20, respectively, with the ends abutting each other at a substantially right angle. Are connected by. However, it is also possible to form a screw hole in the connecting plate 18 and omit the nut 20.
It is also possible to connect with rivets, eyelets, etc. instead of the nut 20.

Next, a method of manufacturing the frame components 4A and 4B will be briefly described. First, as shown in FIG.
The flat metal plate 21 is covered with the resin film 22 to manufacture the plate-shaped raw material 6. A steel plate, a stainless steel plate, or the like can be used as the metal plate 21, and its plate thickness is to sufficiently reduce the weight while sufficiently securing the strength and rigidity of the frame-shaped frame 3,
It is preferably set to 0.3 to 0.8 mm. Also,
The resin film 22 is preferably made of a resin material such as vinyl chloride resin, fluorine resin, acrylic resin, etc., which has excellent weather resistance and is inexpensive.

Next, as shown in FIG. 7, the plate-shaped material 6 is cut into a length substantially the same as the side length of the solar cell panel 2 by pressing, and the plate-shaped material 6 is frame-structured. A notch 23, which is a notch at both ends of 4A and 4B, and a bolt insertion hole 17 are sequentially formed.

Next, the pressed frame components 4A and 4B are bent by the roll homing method along the fold line indicated by the one-dot chain line in FIG.
A and 4B are manufactured. However, the resin film 22 is formed on the metal plate 2
1 may be applied after being molded into the shape of the frame components 4A and 4B.

Further, a long metal plate 21 having a predetermined width is continuously bent into the same cross-sectional shape as the frame components 4A and 4B by a roll homing method without cutting or pressing, and this is bent into a solar cell. Even if the frame components 4A and 4B are manufactured by sequentially cutting the panel 2 into substantially the same length as the side length, cutting both ends obliquely at an angle of about 45 °, and further forming the bolt insertion holes 17. Good.

[0020]

According to the frame-shaped frame of the solar cell module of the present invention, various metal materials can be used as materials, so that the material cost can be easily reduced. Further, since the plate thickness of the frame constituent material can be reduced, the material cost of the entire frame-shaped frame can be suppressed even when a relatively expensive material is used. Furthermore, since the plate thickness of the frame constituent material can be made thin, the frame-shaped frame can be made lightweight. Furthermore, it is possible to easily change the strength and rigidity of the frame-shaped frame by changing the cross-sectional shape of the frame constituent material.

When the frame constituent material is manufactured by the roll homing method as described in claim 2, the molding cost of the frame constituent material can be reduced. When a metal plate coated with a resin film is used as the plate-shaped material as described in claims 3 and 4, the weather resistance of the frame can be sufficiently ensured. When the plate thickness of the metal plate is set to 0.3 mm to 0.8 mm, the weight of the frame can be reduced as much as possible while ensuring the strength and rigidity of the frame.

[Brief description of drawings]

FIG. 1 is a perspective view of a solar cell module including a frame-like frame according to the present invention.

FIG. 2 is a vertical cross-sectional view of the solar cell module in the vicinity of a frame

FIG. 3 is a perspective view of a frame-shaped frame according to the present invention.

FIG. 4 is a perspective view of the vicinity of a connecting portion of the frame-like frame.

FIG. 5 is a transverse cross-sectional view of the frame-shaped frame in the vicinity of a connecting portion.

FIG. 6 is a vertical sectional view of the plate-shaped material.

FIG. 7 is a plan view of a plate-shaped material that has been pressed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Solar cell module 2 Solar cell panel 3 Frame-shaped frame 4A Frame constituent material 4B Frame constituent material 5 Connecting means 6 Plate-shaped material 10 Vertical wall part 11 Vertical wall part 12 Extension part 13 Extension part 14 Extension part 15 Extension Part 16 Fitting groove part 17 Bolt insertion hole 18 Connection plate 19 Bolt 20 Nut 21 Metal plate 22 Resin film 23 Notch part 24 Folded part

Claims (5)

[Claims] 1. By bending a plate-shaped material, a frame component having a fitting groove portion continuous in the longitudinal direction that can be externally fitted to the outer edge portion of the solar cell panel is manufactured, and the fitting groove portion is formed on the solar cell panel. A frame-shaped frame for a solar cell module, which is externally fitted to the outer edge portion, and frame-forming members are connected and fixed in a frame shape along the outer edge portion of the solar cell panel. 2. The frame-shaped frame for a solar cell module according to claim 1, wherein the frame constituent material is manufactured by a roll homing method. 3. The frame-shaped frame for a solar cell module according to claim 1, wherein a metal plate coated with a resin film is used as the plate-shaped material. 4. The frame-like frame for a solar cell module according to claim 3, wherein the resin film is made of a resin material selected from vinyl chloride resin, fluorine resin, and acrylic resin. 5. The plate thickness of the metal plate is 0.3 mm to 0.8.
The frame-shaped frame of the solar cell module according to claim 3 or 4, wherein the frame-shaped frame is set to mm.