KR102248879B1 - Cutter for solar cell repair - Google Patents

Abstract

The present invention relates to a cutter for the repair of a solar cell, which is for cutting the back sheet of a solar cell module. More specifically, the present invention relates to a cutter for the repair of a solar cell, which comprises: a thimble which includes an outer pipe body, the inner pipe body in which the outer circumferential surface with a spiral is apart from the inner circumferential surface of the outer pipe body for a certain distance and in which one side end is connected to the inner circumferential surface of the outer pipe body, and a head placed on the other side end of the inner pipe body; a sleeve which enters/exits between the outer pipe body and the inner pipe body to control a protruding length from the inner pipe body, having a pair of rotary rollers rotated by coming in contact with the back sheet by being placed on the outer circumferential surface; and a cutting blade in which one side end comes in close contact with the head, and the other side end incises the back sheet into a certain depth, and in which the incised depth on the back sheet can be controlled in accordance with the protruding length of the sleeve. The present invention is able to control the protruding length of the sleeve and easily control the incised depth of the cutting blade on the back sheet.

Description

Cutter for solar cell repair

The present invention relates to a solar cell repair cutter, and more particularly, to a solar cell repair cutter capable of removing EVA by cutting a back sheet in order to repair a solar cell of a solar module.

Technology for developing various kinds of nature-friendly energy as the demand for the development of eco-friendly green energy due to environmental pollution caused by fossil fuels and the development of alternative energy due to the depletion of fossil fuels such as petroleum and coal is required worldwide. It is a situation where development is actively taking place.

Among various types of nature-friendly energy, the development of photovoltaic technology that utilizes solar energy is being actively conducted. As such, research on solar power generation devices has been actively conducted, but research on the treatment of solar modules that have reached the end of their life or have failed is not actively conducted.

The industry sees the lifespan of a solar module for about 20 to 25 years, and there are many cases in which the solar module fails before the end of its life.

In general, a solar module is a tempered glass (1), an adhesive (Ethylene vinyl acetate: EVA, 2), a solar cell (3), an adhesive (EVA, 4), a back sheet (Back Sheet, 5), as simply shown in FIG. ) Are sequentially stacked from top to bottom, and a significant portion of the failure occurs in the solar cell side located inside.

Therefore, in the case of repairing a failed solar cell, it can be considered that the solar module can be reused, and for repairing the solar cell, it is necessary to cut the back sheet and remove the EVA laminated thereon.

However, since the thickness of the back sheet and EVA is very thin, about 1 to 1.2 mm, a precise cutter is required to incise and remove the back sheet and EVA, but such a cutter has not been proposed yet.

Registration Patent 10-1986837 (Application No.: 10-2017-0123957, Title of Invention: Solar Waste Module Recycling System)

The present invention has been conceived to solve the problems of the prior art, and an object of the present invention is to provide a solar cell repair cutter for removing EVA and cutting a back sheet in order to repair a solar cell of a solar module.

In addition, it is an object of the present invention to provide a cutter for repairing a solar cell capable of easily adjusting the cutting depth and precisely adjusting the cutting depth.

The solar cell repair cutter according to the present invention for solving the above problems is a cutter for cutting the back sheet of the solar module; A thimble consisting of an outer tube and a head provided at the other end of the inner tube and one end of the inner tube connected to the inner peripheral surface of the outer tube while the outer circumferential surface of the outer tube is spaced apart from the inner circumferential surface of the outer tube ; A sleeve (Sleeve) provided on an outer circumferential surface of a pair of rotating rollers which are in and out of the outer pipe body and the protruding length from the inner pipe body is adjusted, and a pair of rotating rollers which rotate in contact with the back sheet; And a cutting blade having one end in close contact with the head, and the other end cutting the backsheet to a predetermined depth, but adjusting the cutting depth of the backsheet according to the protruding length of the sleeve.

Here, the inner circumferential surface is spirally coupled to the outer circumferential surface of the head to press the one end of the cutting blade to the end of the head; is configured to further include.

In addition, a support roller rotating by contacting the back sheet is installed at an end of the outer circumferential surface of the sleeve to have a length shorter than that of the rotating roller.

In addition, the sleeve has an inner circumferential surface helically coupled to the outer circumferential surface of the inner tube and rotates, so that the protruding length from the inner tube is adjusted.

In addition, a scale indicating the protruding length of the sleeve is displayed on the outer tube and the sleeve.

In addition, the cutting blade is heated to a certain temperature by heat provided from the outside.

In addition, the cutting blade is heated indirectly by inserting a high-heat iron tip therein.

The solar cell repair cutter of the present invention configured as described above has the advantage of being able to easily adjust the cutting depth of the cutting blade with respect to the back sheet by adjusting the protruding length of the sleeve.

In addition, since the rotating roller and the support roller are in contact with the back sheet of the solar module and rotate while the cutting blade cuts the back sheet, there is an advantage that the cutting process is easy because the cutter is only pushed forward to cut the back sheet.

In addition, since the sleeve and the inner tube are helically coupled, the cutting edge can be adjusted only by rotating the sleeve and the inner tube, so that the cutting depth can be easily adjusted.

In addition, since the protruding length of the sleeve can be adjusted while looking directly at the scale, there is an advantage in that the cutting edge can be precisely adjusted.

In addition, since the cutting edge is in a high temperature state by the iron tip, there is an advantage in that the EVA of the solar module can be easily removed.

1 is a diagram showing a general photovoltaic module.
Figure 2 is a perspective view showing a solar cell repair cutter according to the present invention.
Figure 3 is an exploded perspective view of the solar cell repair cutter shown in Figure 2;
Figure 4 is a view showing a state in which the iron tip is coupled to the cutter for solar cell repair according to the present invention.
Figure 5 is a view showing a state in which the cutter for solar cell repair according to the present invention is used on a horizontal plane.
Figure 6 is a view showing a state in which the cutter for solar cell repair according to the present invention is used on an inclined surface.

Hereinafter, an embodiment of a cutter for repairing a solar cell according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view showing a solar cell repair cutter according to the present invention, Figure 3 is an exploded perspective view of the solar cell repair cutter shown in Figure 2, Figure 4 is an iron tip to the solar cell repair cutter according to the present invention This is a diagram showing a combined appearance.

And, Figure 5 is a view showing a state that the solar cell repair cutter according to the present invention is used on a horizontal surface, Figure 6 is a view showing a state that the solar cell repair cutter according to the present invention is used on an inclined surface.

The solar cell repair cutter according to the present invention is for cutting a back sheet constituting the outer surface of the solar module in order to repair the solar cell located inside the solar module, and a thimble (10) And, a sleeve (20) coupled to the thimble (10), a cutting blade (30) connected to the thimble (10), and a cap (40) for fixing the cutting blade (30) to the thimble (10) ).

The thimble 10 is composed of an outer tube 11, an inner tube 12 integrally formed with the outer tube 11, and a head 13 integrally formed with the inner tube 12.

Since the outer tube 11 takes a shape of a pipe having a short length and a thickness gradually decreases as the tip portion goes toward the end, an inclined surface 11a is formed at the tip portion.

The inner tube 12 has a longer pipe shape than the outer tube 11, and one end is integrally connected to the inner circumferential surface of the outer tube 11 while the outer circumferential surface is spaced apart from the inner circumferential surface of the outer tube 11 by a certain distance. . One end of the inner tube 12 is integrally connected to the middle of the inner circumferential surface of the outer tube 11, and a spiral is formed on the outer circumferential surface.

The head 13 is formed smaller than the diameter of the inner tube 12, is integrally provided at the other end of the inner tube 12, and a spiral is formed on the outer circumferential surface.

The sleeve 20 has a pipe shape having a length longer than that of the outer tube 11, and the protruding length from the inner tube 12 is adjusted by entering and leaving between the outer tube 11 and the inner tube 12.

In addition, the sleeve 20 is spirally coupled to the outer peripheral surface of the inner tube body 12 by spirally formed on the inner circumferential surface of the sleeve 20 and rotates. In this way, the length of the protrusion from the inner tube body 12 is adjusted by spirally rotating the sleeve 20 in the inner tube body 12.

In addition, a pair of rotating rollers 21 which are rotated by contacting the back sheet are provided in the middle of the outer circumferential surface of the sleeve 20. In addition, at the end of the outer circumferential surface of the sleeve 20, a support roller 22 that rotates in contact with the back sheet is installed to have a shorter length than that of the rotary roller 21. Therefore, when the rotary roller 21 and the support roller 22 are brought into contact with the horizontal surface, the sleeve 20 takes a shape inclined downward toward the support roller 22.

Meanwhile, a scale S indicating the protruding length of the sleeve 20 is displayed on the outer tube 11 and the sleeve 20. In addition, a micrometer-type scale S is displayed on the inclined surface 11a of the outer tube 11 and the outer surface of the sleeve 20 adjacent to the inclined surface 11a. Therefore, it is possible to clearly see how much the sleeve 20 protrudes from the inner tube 12 through the scale S, as well as rotating the thimble 10 while looking at the scale S to determine the protruding length of the sleeve 20 Can be adjusted.

The cutting blade 30 cuts the back sheet to a certain depth, one end is in close contact with the head 13, the other end cuts the back sheet to a certain depth, but the back sheet according to the protruding length of the sleeve 20 The incision depth for is adjusted.

In addition, the depth of the cutting blade 30 inserted into the back sheet is adjusted depending on whether the sleeve 20 is further removed outward or further inserted inward. The sleeve 20 is cut by rotating the thimble 10 in one direction. If it protrudes more toward the blade (30), the depth of cut by the cutting blade (30) becomes shallow, and if the sleeve (20) enters the opposite side of the cutting blade (30) by rotating the thimble (10) in the other direction, the cutting blade The incision depth is deepened by (30). That is, when comparing the protruding length of the sleeve 20 when the protruding length of the sleeve 20 is short (L1) and long (L2) when referring to FIGS. 5 and 6, the cutting edge 30 is compared to when the short (L1) is longer (L2). ), the incision depth becomes deeper.

By finely adjusting the cutting depth by the cutting blade 30 in the same way as above, the backsheet of the solar module having a thin thickness can be cut.

In addition, in order to repair the solar cell of the solar module, it is also necessary to remove the EVA (Ethylene vinyl acetate, ethylene vinyl acetate resin) laminated on the back sheet together with the incision of the back sheet.

In order to better remove EVA, it is preferable that the temperature of the cutting blade 30 is high, so in the present invention, heat is provided from the outside so that the cutting blade 30 can be heated to a certain temperature by the heat.

In more detail, a high-heat iron tip (T) is inserted into the cutting blade (30) so that the cutting blade (30) is indirectly heated by the iron tip (T). When the cutting blade 30 becomes high in this way, the EVA can be removed more effectively as if scraping off.

The cap 40 has a spiral formed on the inner circumferential surface and is helically coupled to the outer circumferential surface of the head 13. By this helical coupling, one end of the cutting blade 30 is firmly pressed to the end of the head 13. Therefore, it is possible to prevent the head 13 from shaking or rotating during the backsheet cutting process.

The solar cell repair cutter according to the present invention configured as described above may cut the back sheet and remove the EVA while placing the solar module on a horizontal surface as shown in FIG. 5, but as shown in FIG. With the solar module tilted at a certain angle, the backsheet can be cut and the EVA removed.

10: thimble 11: outer tube
11a: slope 12: inner tube
13: head 20: sleeve
21: rotary roller 22: support roller
30: cutting edge 40: cap
S: Scale T: Iron tip

Claims (7)

As a cutter for cutting the backsheet of the solar module,
The outer tube 11 and the outer circumferential surface on which the spiral is formed are spaced apart from the inner circumferential surface of the outer tube 11 by a certain distance, and one end is connected to the inner circumferential surface of the outer tube 11, and the inner tube 12 A thimble (10) made of a head 13 provided at the other end of the );
The protruding length from the inner tube 12 is adjusted by entering between the outer tube 11 and the inner tube 12, and a pair of rotary rollers 21 rotating by contacting the back sheet are provided on the outer circumferential surface. And, a sleeve (Sleeve, 20) in which a support roller (22) that rotates by contacting the back sheet at an end of the outer circumferential surface is installed to have a shorter length than the rotation roller (21);
One end is in close contact with the head 13, the other end cuts the back sheet to a certain depth, but the incision depth for the back sheet is adjusted according to the protruding length of the sleeve 20, and the inside of the iron tip of high heat ( A cutting blade 30 into which T) is inserted and heated indirectly;
The inner circumferential surface is helically coupled to the outer circumferential surface of the head 13 to press the one end of the cutting blade 30 to the end of the head 13; and a cap 40;
The sleeve 20 has an inner circumferential surface helically coupled to the outer circumferential surface of the inner tube 12 and rotates to adjust the protruding length from the inner tube 12,
When the thimble 10 is rotated in one direction so that the sleeve 20 protrudes more toward the cutting blade 30, the incision depth by the cutting blade 30 becomes shallow, and the thimble 10 is rotated in the other direction to make the sleeve ( A cutter for solar cell repair, characterized in that when 20) enters the opposite side of the cutting blade 30, the depth of cut by the cutting blade 30 increases.
delete delete delete The method according to claim 1,
A solar cell repair cutter, characterized in that a scale (S) indicating the protruding length of the sleeve (20) is displayed on the outer tube (11) and the sleeve (20).
delete delete

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