Jig for manufacturing solar cell module

Abstract

The present invention relates to a jig for manufacturing a solar cell module, which comprises: a first body unit in which a plurality of openings are spaced apart from each other in one area; and a second body unit disposed along the outer periphery of the first body unit, wherein the first body unit includes a contact surface in contact with one surface of the solar cell module. The thickness uniformity of the solar cell module can be improved during a lamination process.

Description

Jig for manufacturing solar cell modules

[0001] The present invention relates to a jig for manufacturing a solar cell module.

[0002] Generally, a solar cell module is formed by bonding a front glass plate, an encapsulant (e.g., EVA resin), a solar cell, an encapsulant, and a resin-based backsheet, so that power generation occurs on one side of the module. Meanwhile, there are also glass-to-glass type solar cell modules designed to improve durability and allow both sides of the solar cell module to contribute to power generation. A glass-to-glass type solar cell module is formed by bonding a first glass plate, an encapsulant, a solar cell, an encapsulant, and a second glass plate.

[0003] The lamination process of a solar cell module involves stacking the constituent elements of the module in sequence and then fixing them through an encapsulant by compressing them using a laminating device under high temperature and vacuum. In the lamination process, the solar cell module is pressed using a flat diaphragm sheet made of an elastic material such as silicone.

[0004] At this time, the corner edges of the solar cell module may be additionally pressed due to excessive pressure applied by the sagging of the diaphragm sheet. This causes non-uniformity in the thickness of the solar cell module, making it difficult to fasten the fixing frame for securing the solar cell module.

[0005] In addition, in the case of a glass-to-glass module, a hole for electrode wiring is machined in the rear glass and the location is sealed with Mini-Glass. However, since this part may protrude more than the rear glass, if it comes into contact with the diaphragm sheet, the Mini-Glass may break due to pressure unevenness.

[0006] Embodiments of the present invention can provide a jig for laminating a solar cell module that reduces or prevents damage to the solar cell module during the lamination process for manufacturing a solar cell module and improves the uniformity of the thickness of the solar cell module.

[0007] An embodiment of the present invention for achieving the above-described purpose discloses a jig for manufacturing a solar cell module, comprising a first body portion having a number of openings spaced apart from each other in a certain area, and a second body portion arranged along the outer circumference of the body portion, wherein the first body portion includes a contact surface that contacts one side of a solar cell module.

[0008] A jig for laminating a solar cell module according to an embodiment of the present invention has a plurality of holes located in the body portion to prevent damage to the mini-glass placed on the rear glass of the solar cell module, and a frame is arranged along the outer circumference of the body portion, thereby improving the uniformity of the thickness of the solar cell module during the lamination process.

[0009] FIG. 1 is a schematic plan view illustrating an example of a solar cell module mounted on a jig according to one embodiment of the present invention.

[0010] FIG. 2 is a schematic plan view illustrating an example of a jig for manufacturing a solar cell module according to an embodiment of the present invention.

[0011] FIG. 3 is a cross-sectional view schematically illustrating an example of a jig for manufacturing a solar cell module of FIG. 2.

[0012] FIG. 4 is a cross-sectional view schematically illustrating an example of a laminating process using the solar cell module manufacturing jig of FIG. 2.

[0013] FIG. 5 is a schematic plan view illustrating an example of a first frame of a jig for manufacturing a solar cell module of FIG. 2.

[0014] FIG. 6 is a schematic plan view illustrating an example of a third frame of a jig for manufacturing a solar cell module of FIG. 2.

[0015] Figure 7 is an enlarged view of part A of Figure 2.

[0016] Figure 8 is a drawing of Figure 7 viewed from direction B.

[0017] Figures 9a and 9b show the thickness of the solar cell module by region.

[0018] An embodiment of the present invention for achieving the above-described purpose discloses a jig for manufacturing a solar cell module, comprising a first body portion having a number of openings spaced apart from each other in a certain area, and a second body portion arranged along the outer circumference of the body portion, wherein the first body portion includes a contact surface that contacts one side of a solar cell module.

[0019] The plurality of openings can each correspond to a plurality of mini glasses disposed on one side of the solar cell module.

[0020] Each of the above mini glasses may protrude further than one side of the solar cell module.

[0021] The thickness of the first body part may correspond to the thickness of the protruding mini glass.

[0022] The above solar cell module has a wiring hole located on one side for electrode wiring to protrude outward, and the wiring hole can be covered by the mini glass.

[0023] The second body part may include a plurality of holes on the side that penetrate the second body part.

[0024] The above plurality of holes can discharge air contained in the solar cell module to the outside.

[0025] The diameter of each of the above plurality of holes may be 1.5Φ to 3Φ.

[0026] The second body part includes a short side part and a long side part, the short side part includes a first frame and a second frame, and the long side part may include a third frame.

[0027] The first frame and the second frame may include a shape that is vertically symmetrical to each other.

[0028] The first frame, the second frame, and the third frame have connecting portions disposed on both sides, and the connecting portions can connect the first frame, the second frame, and the third frame to each other.

[0029] The above connecting part may include a frame connecting part and a first body connecting part.

[0030] The frame connecting portion connects the first frame, the second frame, and the third frame to each other, and the first body connecting portion can connect the first body portion to each of the first frame, the second frame, and the third frame.

[0031] The frame connecting portion may be positioned to face outward from the jig for manufacturing the solar cell module, and the first body connecting portion may be positioned to face inward from the jig for manufacturing the solar cell module.

[0032] The above frame connecting part and the above first body connecting part can be fixed by a fixing member.

[0033] The first body part may include one or more selected from Teflon (PTFE: Polytetrafluoroethylene), PFA (Per Fluoro Alkoxy), FEP (Fluoro Ethylene Propylene), ETFE (Ethylene Tetrafluoro Ethylene), CTFE (Chlorotrifluoroethylene), and PCTFE (Polychlorotrifluoroethylene).

[0034] The shape of the first body part above may correspond to the size and shape of the solar cell module.

[0035] The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms.

[0036] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted.

[0037] In the following embodiments, terms such as first, second, etc. are used not in a limiting sense, but for the purpose of distinguishing one component from another component.

[0038] In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0039] In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added.

[0040] In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, so the present invention is not necessarily limited to what is illustrated.

[0041] Where an embodiment can be implemented differently, a specific process sequence may be performed differently from the order described. For example, two processes described consecutively may be performed substantially simultaneously or proceed in the reverse order of the description.

[0042] One embodiment of the present invention for achieving the above-described purpose relates to a jig for manufacturing a solar cell module, comprising a first body portion having a number of openings spaced apart from each other in one area, and a second body portion arranged along the outer circumference of the body portion, wherein the first body portion includes a contact surface that contacts one side of a solar cell module, and is described with reference to FIGS. 1 to 9.

[0043] FIG. 1 is a schematic plan view illustrating an example of a solar cell module mounted on a jig according to an embodiment of the present invention, FIG. 2 is a schematic plan view illustrating an example of a jig for manufacturing a solar cell module according to an embodiment of the present invention, FIG. 3 is a schematic cross-sectional view illustrating an example of a jig for manufacturing a solar cell module according to FIG. 2, and FIG. 4 is a schematic cross-sectional view illustrating an example of a laminating process using the jig for manufacturing a solar cell module according to FIG. 2.

[0044] Referring to FIGS. 1 to 4, a jig (100) for manufacturing a solar cell module may include a first body part (110) and a second body part (111) arranged along the outer circumference of the first body part.

[0045] Meanwhile, the jig (100) for manufacturing a solar cell module can be applied during the laminating process for manufacturing a solar cell module (10), and during the laminating process, it receives the pressure of the diaphragm sheet (P) on behalf of the solar cell module (10) to prevent the solar cell module (10) from being damaged. Here, the diaphragm sheet (P) is a member that covers and presses the solar cell module (10) during the laminating process. Furthermore, the solar cell module (10) can be formed by the components (e.g., a first glass plate (14), a sealing material (12), a solar cell (11), a sealing material (13), and a second glass plate (15) or a front glass plate, a sealing material, a solar cell, a sealing material, and a back sheet) being overlapped before the laminating process, and the sealing material being cross-linked through the laminating process so that the components are compressed as a single unit.

[0046] At this time, the solar cell (11) may include a perovskite solar cell having a structure selected from one of a nip mesoscopic structure, a nip planar structure, a pin planar structure, and a pin mesoscopic structure, and may include a perovskite solar cell having a perovskite photoactive layer, may include a silicon solar cell having an n-type silicon semiconductor, a p-type silicon semiconductor, a single crystal, or a polycrystalline silicon as a photoactive layer, and may include a tandem solar cell having both a perovskite photoactive layer and a silicon photoactive layer.

[0047] The first body part (110) may include a polygonal plate shape, and, for example, may include a shape corresponding to the size and shape of the solar cell module to be manufactured. As a specific example, the first body part (110) may have a size and shape corresponding to one side of the solar cell module, and one side of the first body part (110) may cover one side of the solar cell module. At this time, one side of the first body part (110) may be a contact surface that contacts one side of the solar cell module, and the other side of the first body part (110) may be a surface to which pressure is applied by the diaphragm sheet (P) during the laminating process.

[0048] Meanwhile, in one area of ​​the first body part (110), a plurality of openings (h) may be spaced apart from each other, and each opening (h) may be positioned to correspond to each of the plurality of mini-glasses (17) placed on one side of the solar cell module (10). Meanwhile, a second glass plate (15) placed on one side of the solar cell module (10) may have a hole processed for the electrode wiring (16) protruding outward, and may be sealed by covering the corresponding location with a mini-glass (17). At this time, the mini-glass (17) may protrude further than one side of the solar cell module, so there is a problem of being damaged by pressure applied by the diaphragm sheet (P) during the laminating process.

[0049] In order to solve this problem, a plurality of openings (h) may be positioned in the first body portion (110) of a jig (100) for manufacturing a solar cell module according to one embodiment of the present invention, at positions corresponding to each of the plurality of mini glass (17) placed on the second glass plate (15) of the solar cell module (10), and the thickness of the first body portion (110) corresponds to the protruding thickness of the mini glass (17), thereby preventing the mini glass (17) from being damaged by the diaphragm sheet (P) during the laminating process.

[0050] Meanwhile, if the mini glass (17) is damaged during the laminating process, it becomes difficult to seal the solar cell module (10), and thus the solar cell (11) located inside the solar cell module (10) cannot be protected from the external environment. In particular, the solar cell (11) containing a perovskite photoactive layer is vulnerable to moisture, so if the solar cell module (10) is not properly sealed, serious performance degradation and reliability reduction problems may occur due to moisture entering from the outside.

[0051] Meanwhile, the laminating process temperature is up to 200°C, and the first body part (110) can be made of a heat-resistant material capable of withstanding the laminating process temperature. As an example, the heat-resistant material may include a fluorine-based polymer, and as a specific example, it may include one or more selected from Teflon (PTFE: Polytetrafluoroethylene), PFA (Per Fluoro Alkoxy), FEP (Fluoro Ethylene Propylene), ETFE (Ethylene Tetrafluoro Ethylene), CTFE (Chlorotrifluoroethylene), and PCTFE (Polychlorotrifluoroethylene).

[0052] The second body part (111) may be arranged to surround the outer circumference of the first body part (110). For example, the second body part (111) may include a frame that surrounds the outer circumference of the first body part (110). In this case, the second body part (111) may include a soft polymer, and specifically, as an example, may include polyether ether ketone (PEEK). Additionally, as an optional embodiment, the second body part (111) may include aluminum.

[0053] Meanwhile, the second body part (111) may be arranged with thickness, and the first body part (110) may be arranged on the top of the second body part (111), so that a space formed by the first body part (110) and the second body part (111) can be defined. For example, a solar cell module (10) may be accommodated in this space.

[0054] Meanwhile, when a solar cell module (10) is accommodated in the space defined by the first body part (110) and the second body part (111) and a laminating process is performed, the thickness of the solar cell module (10) may follow the thickness of the space defined by the first body part (110) and the second body part (111). Accordingly, the thickness of the second body part may be adjusted differently depending on the thickness of the solar cell module (10) to be manufactured.

[0055] The second body part (111) may include a short side part (120) and a long side part (130), wherein a first frame (121) and a second frame (122) may be disposed in the short side part (120), and a third frame (131) may be disposed in the long side part (130).

[0056] FIG. 5 is a schematic plan view illustrating an example of a first frame of a jig for manufacturing a solar cell module of FIG. 2, and FIG. 6 is a schematic plan view illustrating an example of a third frame of a jig for manufacturing a solar cell module of FIG. 2.

[0057] Referring to FIGS. 5 and 6, the first frame (121) may have a plurality of holes (150) penetrating the first frame (121) on its side, and these holes (150) may serve as air passages for discharging air contained within the solar cell module (10) to the outside during the laminating process. Additionally, since the laminating process is performed in a vacuum, smooth vacuum exhaust may be required, so the holes (150) may serve as exhaust passages for vacuum exhaust.

[0058] In an optional embodiment, the first frame (121) may include three holes (150) on the side that penetrate the first frame (121).

[0059] At this time, the diameter of the hole (150) may be 1.5Φ to 3Φ. If the diameter of the hole (150) is less than 1.5Φ, it may be difficult to discharge the air contained in the solar cell module (10), and if it exceeds 3Φ, there may be a problem of external air flowing back in through the hole (150).

[0060] The second frame (121) may be identical to the first frame (122) when reflected vertically. Accordingly, the side of the second frame (122) may include three holes (150) that penetrate the second frame (122).

[0061] At this time, the diameter of the hole (150) may be 1.5Φ to 3Φ. If the diameter of the hole (150) is less than 1.5Φ, it may be difficult to discharge the air contained in the solar cell module (10), and if it exceeds 3Φ, there may be a problem of external air flowing back in through the hole (150).

[0062] A plurality of holes (150) penetrating the third frame (131) may be located on the side of the third frame (131), and these holes (150) may serve as air passages for discharging air contained within the solar cell module (10) to the outside during the laminating process. Additionally, since the laminating process is carried out in a vacuum, smooth vacuum exhaust may be required, so the holes (150) may serve as vacuum paths.

[0063] In an optional embodiment, the third frame (131) may include four holes (150) on the side that penetrate the third frame (131).

[0064] At this time, the diameter of the hole (150) may be 1.5Φ to 3Φ. If the diameter of the hole (150) is less than 1.5Φ, it may be difficult to discharge the air contained in the solar cell module (10), and if it exceeds 3Φ, there may be a problem of external air flowing back in through the hole (150).

[0065] Meanwhile, the first frame (121), the second frame (122), and the third frame (131) each have a connecting portion (140) located on both sides, so that they can be connected to each other through the connecting portion (140) to form the second body portion (111). As a specific example, the second body portion (111) may include a rectangular shape comprising two short side portions (120) and two long side portions (130). At this time, the first frame (121) and the second frame (122) may be connected and arranged on the short side portion (120) of the second body portion (111), and two third frames (131) may be connected and arranged on the long side portion (130), so that the length of the third frame (131) may be longer than that of the first frame (121) and the second frame (122). Accordingly, the third frame (131) positioned on the long side (130) has more holes than the first frame (121) and the second frame (122) to facilitate exhaust.

[0066] Figure 7 is an enlarged view of part A of Figure 2, and Figure 8 is a view of Figure 7 from direction B.

[0067] Referring to FIG. 7, the connecting portion (140) may include a frame connecting portion (141) and a first body connecting portion (142), wherein the frame connecting portion (141) may be positioned to face the outside of the jig (100) for manufacturing a solar cell module, and the first body connecting portion (142) may be positioned to face the inside of the jig (100) for manufacturing a solar cell module.

[0068] The frame connecting part (141) serves to connect the first frame (121), the second frame (122), and the third frame (131) to each other, and the first body connecting part (142) can serve to connect the first body part (110) to the first frame (121), the second frame (122), and the third frame (131) respectively.

[0069] Meanwhile, the first frame (121), the second frame (122), and the third frame (131) are arranged in four different directions to surround the first body part (110), and the connecting parts (140) arranged on both sides of each of the first frame (121), the second frame (122), and the third frame (131) are arranged to face in different directions, so that the first body part (110) can be surrounded simply by rotating each of the first frame (121), the second frame (122), and the third frame (131), and the frame connecting part (141) can be arranged to face the outside of the solar cell module manufacturing jig (100), and the first body connecting part (142) can be arranged to face the inside of the solar cell module manufacturing jig (100).

[0070] Referring to FIG. 8, the frame connecting portion (141) and the first body connecting portion (142) can be connected to each other by being firmly fixed by a fixing member(s). For example, the fixing member may include a screw, but is not limited thereto, and may include any member capable of fixing the frame to the frame.

[0071] Figures 9a and 9b show the thickness of the solar cell module by region.

[0072] Referring to FIGS. 9a and 9b, FIG. 9a shows the thickness of a solar cell module by region when the solar cell module is manufactured without using a jig, and FIG. 9b shows the thickness of a solar cell module by region when the solar cell module is manufactured using a jig for manufacturing a solar cell module according to an embodiment of the present invention.

[0073] Comparing Fig. 9a and Fig. 9b, it can be seen that the thickness of the corners is uniform in both Fig. 9a and Fig. 9b. However, regarding the corner edge region, it can be seen that Fig. 9a has a significant difference from the thickness at the corners, whereas Fig. 9b has a thickness similar to that at the corners. In other words, it can be seen that the solar cell module manufactured using the jig for manufacturing a solar cell module according to one embodiment of the present invention has improved thickness uniformity in all regions.

[0074] As a result, the jig for manufacturing a solar cell module according to an embodiment of the present invention has a plurality of holes located in the first body portion to prevent damage to the mini glass placed on the rear glass of the solar cell module, and by having a frame placed along the outer circumference of the body portion, the uniformity of the thickness of the solar cell module can be improved during the lamination process.

[0075] As such, the present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims.

[0076] The specific implementations described in the embodiments are examples and do not limit the scope of the embodiments in any way. For the sake of brevity of the specification, descriptions of conventional electronic configurations, control provision methods, software, and other functional aspects of said provision methods may be omitted. Additionally, the connections of lines or connecting members between components shown in the drawings are illustrative of functional connections and / or physical or circuit connections, and may be replaced or additionally represented as various functional connections, physical connections, or circuit connections in actual devices. Furthermore, unless specifically stated as "essential," "importantly," etc., a component may not be absolutely necessary for the application of the present invention.

[0077] In the specification of the embodiments (particularly in the claims), the use of the term "the above" and similar descriptive terms may be in both singular and plural. Furthermore, where a range is described in the embodiments, it is considered to include the invention with respect to individual values ​​within said range (unless otherwise stated), and is equivalent to describing each individual value constituting said range in the detailed description. Finally, regarding the steps constituting the method according to the embodiments, unless explicitly stated in order or otherwise stated, said steps may be performed in a suitable order. The embodiments are not necessarily limited by the order in which said steps are described. The use of any examples or exemplary terms (e.g., etc.) in the embodiments is merely for the purpose of describing the embodiments in detail, and the scope of the embodiments is not limited by said examples or exemplary terms unless limited by the claims. Furthermore, those skilled in the art will understand that various modifications, combinations, and changes may be made according to design conditions and factors within the scope of the claims or equivalents.

[0078] [Explanation of the symbol]

[0079] 10: Solar cell module 11: Solar cell

[0080] 12: Bag material 13: Sealing material

[0081] 14: First glass plate 15: Second glass plate

[0082] 16: Electrical wiring 17: Diaphragm sheet

[0083] 100: Jig for manufacturing solar cell modules 110: First body part

[0084] 111: Second body part 120: Short side part

[0085] 121: Frame 1 122: Frame 2

[0086] 130: Long side 131: Third frame

[0087] 140: Connection part 141: Frame connection part

[0088] 142: First body connection part 150: Hole

[0089] P: Diaphragm seat h: Opening

Claims

1. A first body part having a number of openings spaced apart from each other in a single area; and A second body portion disposed along the outer circumference of the first body portion; comprising The first body part includes a contact surface that contacts one side of a solar cell module. Jig for manufacturing solar cell modules.

2. In Paragraph 1, A jig for manufacturing a solar cell module, wherein the plurality of openings each correspond to a plurality of mini glasses disposed on one surface of the solar cell module.

3. In Paragraph 2, Each of the above mini glasses is a jig for manufacturing a solar cell module, protruding further than one side of the solar cell module.

4. In Paragraph 3, A jig for manufacturing a solar cell module, wherein the thickness of the first body part corresponds to the thickness of the protruding mini glass.

5. In Paragraph 2, The above solar cell module has a wiring hole located on one side for electrode wiring to protrude outward, and A jig for manufacturing a solar cell module, wherein the wiring hole is covered by the mini glass.

6. In Paragraph 1, A jig for manufacturing a solar cell module, wherein the second body part comprises a plurality of holes penetrating the second body part on the side.

7. In Paragraph 6, The above plurality of holes are a jig for manufacturing a solar cell module, which discharges air contained within the solar cell module to the outside.

8. In Paragraph 6, A jig for manufacturing a solar cell module, wherein the diameter of each of the plurality of holes is 1.5Φ to 3Φ.

9. In Paragraph 1, The second body part above includes a short side part and a long side part, and The above-mentioned short side includes a first frame and a second frame, and The above-mentioned long side is a jig for manufacturing a solar cell module, comprising a third frame.

10. In Paragraph 9, A jig for manufacturing a solar cell module, wherein the first frame and the second frame have shapes that are vertically symmetrical to each other.

11. In Paragraph 9, The first frame, the second frame, and the third frame have connecting parts disposed on both sides, and The above connecting portion is a jig for manufacturing a solar cell module, which connects the first frame, the second frame, and the third frame to each other.

12. In Paragraph 11, The above-mentioned connecting portion is a jig for manufacturing a solar cell module, comprising a frame connecting portion and a first body connecting portion.

13. In Paragraph 12, The above frame connecting portion connects the first frame, the second frame, and the third frame to each other, and A jig for manufacturing a solar cell module, wherein the first body connecting portion connects the first body portion to the first frame, the second frame, and the third frame, respectively.

14. In Paragraph 12, The above frame connecting portion is positioned to face outward from the jig for manufacturing the solar cell module, and A jig for manufacturing a solar cell module, wherein the first body connection portion is positioned to face the internal direction of the jig for manufacturing a solar cell module.

15. In Paragraph 12, A jig for manufacturing a solar cell module, wherein the frame connecting portion and the first body connecting portion are fixed by a fixing member.

16. In Paragraph 1, A jig for manufacturing a solar cell module, wherein the first body part comprises one or more selected from Teflon (PTFE: Polytetrafluoroethylene), PFA (Per Fluoro Alkoxy), FEP (Fluoro Ethylene Propylene), ETFE (Ethylene Tetrafluoro Ethylene), CTFE (Chlorotrifluoroethylene), and PCTFE (Polychlorotrifluoroethylene).

17. In Paragraph 1, The shape of the first body part above is a jig for manufacturing a solar cell module, corresponding to the size and shape of the solar cell module.

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