TWM627683U - Processing device prior to the removal of backsheet of solar panel - Google Patents

Abstract

A processing device adapted for a backsheet of a solar panel includes a base, a cut tool, and a holder, the cut tool is disposed on the base and is configured to peel part of the backsheet from an encapsulant of the solar panel, the holder is configured to support the solar panel and is movably disposed on the base so as to change the distance to the cut tool.

Description

Processing device for removing the back sheet of the solar panel

The present invention relates to a processing device, in particular to a processing device for removing the back sheet of a solar panel.

Fossil fuels are gradually exhausted due to the continuous exploitation of human beings, and solar power generation has become the focus of alternative energy development in countries around the world. However, with the increase in the use of solar panels, the number of waste solar panels that countries need to deal with in the future or even at this stage is also increasing.

Because the solar panel contains recyclable and reusable materials, such as aluminum frame (frame), glass (glass) and solar cells (solar cells) and so on. If the waste solar panels cannot be recycled and reused, these resources will be wasted as abandoned landfills, which will not only cause resource loss but also easily cause environmental and land pollution problems. Therefore, solar panels are generally processed for recycling. At present, in some solar energy recycling technologies, thermal cracking is used to recycle waste solar panels, which can effectively separate module materials and recover glass and solar cell fragments. The so-called thermal cracking refers to first removing the aluminum frame/junction box and then using high temperature to vaporize the encapsulation material (Ethylene Vinyl Acetate, referred to as "EVA") used to encapsulate the solar cell and the backsheet that carries the solar cell. To recycle high-value materials such as aluminum, silicon, copper, silver, and glass. However, since the backplane contains fluorine, the fluorocarbon gas generated after combustion will seriously damage the ozone layer. Therefore, the thermal cracking method also requires the establishment of equipment that can capture toxic gases before proper disposal, which makes thermal cracking. of solar energy recycling production lines require high cost of pollution prevention and treatment equipment.

Considering the aforementioned problems caused by thermal cracking, more and more manufacturers have adopted the method of separating the backplane with a machine to remove the backplane from the packaging material. However, there are still some doubts about this approach, because there is a considerable degree of adhesion between the packaging material and the backplane, so it is forced to pull The force or impact generated by pulling the backsheet can easily shatter other parts such as the glass layer of the solar panel, thereby reducing the difficulty and value of subsequent recycling of these materials, although some people have slowed down the speed of pulling and separating the backsheet to reduce the impact on solar energy. The impact of the battery and glass layer, but this makes the process time consuming and very limited.

In view of this, one of the objectives of the present invention is to provide a processing device for removing the back sheet of the solar panel, so as to pre-treat the back sheet of the solar panel, so as to effectively solve the related problems caused by the subsequent separation of the back sheet.

According to an embodiment of the present invention, a processing device is disclosed, which is used for a backplane of a solar panel. The processing device includes a base, a cutter and a holder. The tool is arranged on the base. The cutter is used to separate a part of the back sheet from an encapsulation material of the solar panel. The holder is used to support the solar panel. The holder is movably arranged on the base to change the distance from the tool.

According to the processing device for removing the back sheet of the solar panel disclosed in the foregoing embodiments of the present invention, since the processing apparatus has a cutter, it can be used to cut the seam between the back sheet of the solar panel and the encapsulating material to partially cut the back sheet. Cut and separate, whereby the back sheet can be lifted off the encapsulation material on one side of the solar panel, which is beneficial to reduce or avoid the subsequent separation to remove the back sheet. impact, thereby helping to shorten the time required to remove the back sheet, as well as helping to maintain the integrity of the glass layer and solar cells during the recycling process, thereby increasing the recyclable value of the solar panel.

The above description about the disclosure of the present invention and the following description of the embodiments are used to demonstrate and explain the spirit and principle of the present invention, and provide further explanation of the scope of the patent application of the present invention.

1: Processing device

9: Solar panels

10: Pedestal

20: Knives

21: Blade tip

22: Middle guide part

23: rear guide part

30: Retainer

40: Heater

91: Backplane

93: Packaging materials

95: glass layer

97: Solar cells

99: Aluminum frame

211: Plane

221: Arc

D: direction of entry

H: distance

L: length

W: width

FIG. 1 is a simple three-dimensional schematic diagram of a processing device according to an embodiment of the present invention.

FIG. 2 is a schematic side view of the processing apparatus of FIG. 1 .

3 to 5 are schematic diagrams illustrating the operation of applying the processing device according to an embodiment of the present invention to a solar panel.

The detailed features and advantages of the present invention will be described in detail below by means of embodiments, the content of which is sufficient to enable any person skilled in the relevant art to understand the technical content of the present invention and implement accordingly, but it is only an example and does not limit the scope of the present invention in any respect. .

It is to be understood that the phraseology and terminology used below is for the purpose of description and should not be regarded as limiting. The terms "set up", "configure", "connect", "assemble", "install" and their variants may be used in the following text, but unless expressly stated otherwise, they shall include the direct and indirect "set up", "" Configuration", "Connection", "Assembly", "Installation", etc. The terms "communication", "circulation" and their variants may also be used hereinafter to refer to situations where a liquid or gas may flow in and between two or more objects or spaces being described. Terms such as "substantially", "approximately" and "substantially" may be used below, which refer to situations where there is a slight but still within manufacturing tolerance from the target value and the same effect as the target value. In addition, "at least one" may also be used below to describe the number of the referred elements, but unless explicitly stated otherwise, it should not be limited to the case where the number is "only one". The term "and/or" may also be used below, which should be understood to include any and all combinations of one or more of the listed items.

Hereinafter, some and other embodiments of the present invention will be described with reference to FIGS. 1 to 5 . However, it is understood that the various details described below are only for the purpose of example, rather than for limiting the present invention.

First, please refer to FIG. 1 , an embodiment of the present invention provides a processing device 1 , which can be used to remove the back sheet of a solar panel. As shown in the figure, the processing device 1 may include a base 10 , a cutter 20 and a Holder 30. The base 10 refers to the part on the processing device 1 where the cutter 20 and the holder 30 can be fixed and installed. The base 10 can be made of, but not limited to, any suitable material, such as wood, plastic, metal, and the like. In this embodiment, the base 10 can be manually removed by the operator It can be moved in a holding way, but the present invention is not limited to this. In some embodiments, the base 10 can also be placed or carried on any suitable moving vehicle (not shown) for movement in a desired direction.

The cutter 20 can be fixed at a suitable position on the base 10 in any suitable manner, and refers to a tool on the processing device 1 for cutting and separating parts of the backing plate. Knife 20 may be integrally formed from any suitable material with the desired rigidity commonly used for knives, such as metal or ceramic.

The holder 30 refers to the position on the processing device 1 that can be adjusted to support the solar panel or position the processing device 1 during the process of cutting and separating the back plate by the cutter 20, and it can be movably arranged on the processing device 1 in any suitable manner. The base 10 can change the distance between it and the tool 20 (eg, the distance H shown in the figure). For example, between the holder 30 and the base 10 , there may be a concave-convex matching sliding rail and a sliding groove extending in a specific direction, so that the holder 30 can slide relative to the base 10 in a specific direction on the base 10 . Thereby, the holder 30 can be relatively close to or away from the tool 20 . For the purpose of brevity of the drawings, the holder 30 will be represented by a simple block, and the specific connection relationship between the holder 30 and the base 10 is omitted and not shown.

In addition, optionally, the processing device 1 may further comprise a heater 40, which may be, but is not limited to, a metal wire or any other form of heating device suitable for energizing to generate thermal energy. For the sake of brevity, the heater 40 will be represented by a simple block, and the related wiring will be omitted and not shown. The heater 40 may be disposed on or in thermal contact with the holder 30 . For example, the heater 40 can be disposed on or in thermal contact with the surface of the holder 30 relatively far from the cutter 20, whereby the heater 40 can be used to heat the back sheet and the packaging material when or before the cutter 20 cuts and separates the back sheet, In order to reduce the adhesion between the backplane and the packaging material. Understandably, in the application where the heater 40 is disposed on the holder 30 to heat the solar panel through the holder 30 , the material of the holder 30 may have thermal conductivity, so as to facilitate conduction of the heat energy generated by the heater 40 . However, the present invention is not limited by the position of the heater 40 . For example, in other embodiments, the heater 40 may also be disposed in thermal contact with the surface of the holder 30 relatively close to the tool 20 . Alternatively, in some other embodiments, the heater 40 may also be disposed in the cutter 20 , and in this example, the material of the cutter 20 may have thermal conductivity, so as to facilitate conduction of the heat energy generated by the heater 40 .

Further to the cutter 20, as shown in the figure, in this embodiment, the cutter 20 may include a tip portion 21, a middle-section guide portion 22 and a rear-section guide portion 23, and the middle-section guide portion 22 is connected to the tip portion 21 and the rear-section guide portion 23. between the guide parts 23 . The cutting edge portion 21 refers to the tip of the cutting tool 20 for cutting into the seam of the laminated structure of the solar panel (eg, the seam between the back sheet and the package structure). Optionally, the tip portion 21 may have a flat surface 211 . The defining plane 211 may have a length L. In one example, the length L may be between 1 mm and 10 mm. In addition, the cutter 20 can be defined to have a width W, in one example, the width W can be between 5 mm and 50 mm. The middle guide portion 22 refers to the portion of the cutter 20 that is connected to the cutting edge portion 21 , and can be used to guide the structure (eg, the back plate) cut and separated by the cutting edge portion 21 in other directions. Optionally, the middle guide portion 22 may have an arc surface 221, and the arc surface 221 may have an arc of about 0˜π/2. The rear guide portion 23 refers to the part of the cutter 20 that is connected with the middle guide portion 22. It can extend outward from the middle guide portion 22 in a direction substantially perpendicular to the tool tip portion 21, so as to be used for the cutting tool 21. The structure (eg, the back plate) guided by the middle-section guide portion 22 is guided in a specific direction (eg, a direction substantially perpendicular to the cutting direction D of the cutter 20 ).

Hereinafter, referring to FIGS. 3 to 5 , the operation of the processing device 1 for removing the back sheet 91 of a solar panel 9 will be described to illustrate the use of the processing device 1 . First or before, the user forms the aluminum frame 99 of the solar panel 9 from the backsheet 91 , the encapsulant 93 , the glass layer 95 and the solar cells 97 as shown in the figure. Based on different designs, if there is a situation where the end of the back plate 91 covers the edge of the packaging material 93, for example, the end of the back plate 91 covering the packaging material 93 can be cut off with a suitable tool ( As shown by the dotted line), a cutout is formed to expose the connection line between the back plate 91 and the encapsulation material 93 . Then, the tool 20 of the processing device 1 can be used to lift the back plate 91 .

Specifically, as shown in FIGS. 4 to 5 , the holder 30 can be adjusted to an appropriate position relative to the cutter 20 so as to be attached to the glass layer 95 of the solar panel 9 , so that the processing device 1 can be stabilized or confirmed when or before the cutter 20 is cut and separated. The position of the processing device 1 and the angle of entry. At the same time or before the actual feeding of the tool 20, the heater 40 can be activated, so that the heater 40 can generate thermal energy and pass through the solid state. The holder 30 heats the part of the solar panel 9 that is expected to be cut apart by the cutter 20 , for example, the seam between the back sheet 91 and the encapsulation material 93 , so as to be lowered by the high temperature first, between the back sheet 91 and the encapsulation material 93 of adhesion.

Then, the cutter 20 can be made to cut into the seam between the back plate 91 and the packaging material 93 along the cutting direction (as shown by arrow D). During the process, the cutter 20 first separates the backing plate 91 from the packaging material 93 with its cutting edge 21 . As the cutter 20 cuts deeper into the seam, the backing plate 91 will follow the middle guide portion 22 and the rear portion of the cutter 20 in sequence. The guide portion 23 is guided in a direction relatively away from the blade edge portion 21 . This helps to avoid the situation where the cut and separated backing plate 91 sticks back to the encapsulation material 93 . In addition, in some applications, the guidance of the middle guide portion 22 and the rear guide portion 23 helps to push the backing plate 91 cut and separated by the cutting edge portion 21 to the next recycling processing station. For example, the middle guide part 22 and the rear guide part 23 can deliver the back plate 91 to the relevant dismantling device for separating the back plate 91, so that the cut and separated back plate 91 can be connected to the next one. Processing workstation. Understandably, when the cutter 20 cuts across one side of the solar panel 9 , the back panel 91 can be partially peeled off from the encapsulation material 93 , so that the back panel 91 on one side of the solar panel 9 is separated from the encapsulation material 93 and warped. In this state, it is beneficial to reduce or avoid the influence of separating the back sheet 91 on the glass layer 95 and the solar cell 97 in the process of subsequent separation to remove the back sheet 91, thereby helping to shorten the time required for removing the back sheet 91. It also helps to maintain the integrity of the glass layer 95 and the solar cell 97 during the recycling process, so as to reduce the difficulty of recycling and the value of recycling.

According to the processing device for removing the back sheet of the solar panel disclosed in the foregoing embodiments of the present invention, since the processing apparatus has a cutter, it can be used to cut the seam between the back sheet of the solar panel and the encapsulating material to partially cut the back sheet Therefore, the back sheet can be lifted off the encapsulation material on one side of the solar panel, which is beneficial to reduce or avoid the subsequent separation to remove the back sheet. impact, thereby helping to shorten the time required to remove the back sheet, as well as helping to maintain the integrity of the glass layer and solar cells during the recycling process, thereby increasing the recyclable value of the solar panel.

Although the present invention is disclosed in the foregoing embodiments, it is not intended to limit the present invention. new. Changes and modifications made without departing from the spirit and scope of the present invention belong to the scope of patent protection of the present invention. For the protection scope defined by this new model, please refer to the attached patent application scope.

1: Processing device

10: Pedestal

20: Knives

21: Blade tip

30: Retainer

40: Heater

22: Middle guide part

23: rear guide part

211: Plane

221: Arc

H: distance

L: length

W: width

Claims (10)

A processing device for a backplane of a solar panel, the processing device comprising: a base; a cutter, disposed on the base, wherein the cutter is used to separate a part of the back sheet from an encapsulation material of the solar panel; and a holder for supporting the solar panel, wherein the holder can It is movably arranged on the base to change the distance from the tool. The processing device according to claim 1, further comprising a heater disposed on the holder. The processing device of claim 2, wherein the heater is located on a surface of the holder relatively remote from the tool. The processing device according to claim 1, further comprising a heater disposed in the tool. The processing device of claim 1, wherein the cutter has a width of 5 mm to 50 mm. The processing device of claim 1, wherein the tool includes a tip portion having a flat surface. The processing device according to claim 6, wherein the cutting edge portion has a length of 1 mm to 10 mm. The processing device according to claim 6, wherein the tool further comprises a middle guide portion connected to the tool tip portion, and the middle guide portion has an arc surface. The processing device of claim 8, wherein the arc surface has a radian of 0~π/2. The processing device according to claim 8, wherein the tool further comprises a rear guide part connected between the middle guide part and the tool tip part, the rear guide part from the middle guide part to substantially It extends outward in a direction perpendicular to the tip portion.

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