五、新型說明： 【新型所屬之技術領域】 本創作係有關於-種太陽能板触之封裝技術，制是一種太陽 能板模組之背板結構。 【先前技術】V. New description: [New technology field] This creation department has a kind of solar panel contact packaging technology, which is a back panel structure of solar panel module. [Prior Art]
Ik著節忐簡碳意識提高與綠色能源需求增加，太陽能發電成為重 要的替代性能源之-。—般太陽能板模組通常設置於戶外，戶外環境 之ί氣、ΐ溫等因素會不利於太陽模組，因此太陽能板模組之構成、 材貝構造等方Φ被要求充分的耐久性、耐候性，制是要求背板具有 耐候I·生且水③氣穿透率小。因為當封裝材因水分穿透而剝離或變色造 成線路腐辦，會職社輸㈣力本料成影響。 接續上述說明，如圖i所示，於—般太陽能板模組之結構中， 封入封裝中之組件稱為太陽電池模組100，太陽電池模組100之上下 層以由熱雖娜11Q(如乙命乙酸乙_旨共聚合麟，EVA)所組成 之f充材來封裝填補太陽電池模組100間隙。太陽電池模組100接受 太陽光照狀[般餘玻璃12G覆蓋。另外，太陽電池模組100内 面則由具耐熱、耐候性塑膠材料等之薄片所構成之背板13G保護。背 t製作多為塗伽合製程，且多需要於熟成室進行熟成 ，因此背板 製品熟成後展開會呈現翹曲狀態。 一般太陽能板模組之封裝多採用疊壓製程（laminati〇n P_SS)，溫度約15(rc上下’常因各膜材與太陽電池模組層疊時需多 道置放工序且膜材間翹曲程度不同，進而影響疊合良率。 【新型内容】 私排目的之-係提供—歡陽驗触之背缺構，藉由 出（extrusion)方式將密封材料層與電絕緣層整合 L…、 無需額外塗料貼合並省略熟成步驟且製品之㈣質低。1 背板’ 本創作目狀i顧—歡域蚊版 2财減少因高低差導致破片之機率，且具有低收縮率亦可 片與太陽電池模組線路不良之機率。 本創作目的之-係提供一種太陽能板模、组之背板結構，可減 、資合時空氣層’故可具有較快的抽氣排泡速率與較佳的層接著力。 本創作-實施例之—種太陽能板模組之背板結構， 編電，緣層，其材質為PC_PE合金；以及—密封材料層，係利用一孰 押出（a—方式直接成形於魏騎上且密封材料層之从 =係具有-表面壓花結構，其中密封材制之材f係為交聯型封裝材 以下藉由具體實施例配合所附的圖式詳加說明，冑更容易瞭解本 創作之目的、技術内容、特點及其所達成之功效。 【實施方式】 九圖2所示為根據本創作一實施之太陽能板模組之背板結構的示 意圖。於本實施例中，太陽能板模組之背板結構包括：一第一電絕 ^ 21G ;以及-密封材料層綱。其中，第—絕緣層21()之材質為 ♦蛟酸醋·»合金（PC_p〇iyestei· A丨丨Gy)。㈣材料層係利用一 熱融押出（eX_i〇n)方式直接成形於第—魏緣層⑽上。密封材 料層獅之材質為交聯型封裝材料，且密封材料層綱之上表面係具 有-表面壓花結構。其中，聚碳酸g卜聚s旨合金（pc_pGlyesterA1I〇y) 可為聚碳酸S旨·聚對¥二fg匕二醇g旨合金（pC_pETAll〇y)、聚碳酸 M396491 酯-二醇類改性對苯二甲酸乙二醇酯合金（PC-PETG Alloy)、聚碳酸 酯-聚對苯二酸丁二酯合金（PC-PBTAlloy)。 接續上述說明’於一實施例中，密封材料層300之材質係 為乙烯-醋酸乙烯酯共聚合物（ethylene-vinyl acetate copolymer， EVA)。於一實施例中，於密封材料層300中，可選擇性添加有機 或無機染料’如硫酸領（BaS〇4)、碳酸妈（CaC03)、二氧化鈦（Ti〇2) 或碳黑（carbon black)。又，於一實施例中，於第一電絕緣層210中 可選擇性添加有機或無機染料，如硫酸鋇（BaS04)、碳酸鈣（CaC03)、 二氧化鈦（Ti02)或碳黑（carbon black)。或是於另一實施例中，圖 上未示，可於第一電絕緣層210上表面或下表面可選擇性設置含有機 或無機染料之表面層（skin layer)，圖上未示。於一實施例中，亦可 於表面層中添加氟ι塑料（fluor〇plaSl；ics)。於一實施例中，圖上未示， 有機或無機染料亦可添加至第一電絕緣層210之内夾層中。於一實施 例中，於第一電絕緣層210之表面層（skin layer)亦可添加阻水材料， 如聚丙烯（Polypropylene ’ PP)、聚乙烯（p〇iyethlene，PE)、尼龍 (polyamide，PA)、乙烯-醋酸乙烯酯共聚合物（ethyiene_vinyiacetate copolymer，EVA)、三元乙丙橡膠（ethylene propylene diene terpolymer rubber ’ EPDM)、乙稀丙婦橡膠（ethylene pr〇pyiene mbber，epr)或 乙稀和乙烯醇共聚物(ethylene vinyl alcohol，EVOH) 〇 請參照圖3A ’於一實施例中，密封材料層3〇〇可為兩層結構， 由第一密封材料層310與第二密封材料層320組合而成《其中，上層 之第一密封材料層310具有表面壓花結構，而於一實施例中，下層之 第二密封材料層320可選擇性添加有機或無機染料（pigment)及抗 紫外光材料。 請參照圖3B，於一實施例中，密封材料層3〇〇可為三層結構， 由第-密封材料層310、第二密封材料層wo與第三密封材料層33〇 組合而成。其中，上層之第一密封材料層31〇具有表面壓花結構，而 5 M396491 於一實施例t ’中間層之第二密封材料層320可選擇性添加有機或無 機染料（pigment)及抗紫外光材料。 請參照圖4，於第一電絕緣層210之下方可設置一第二電絕緣 層220用作一耐候層。此第二電絕緣層220之材質可為熱塑性橡膠彈 性體（thermoplastic elastomer ’ TPE )’ 如聚烯烴系彈性體（thermopiastic Olefine ’ TP0) ’ 如二元乙丙橡膠（ethylene propylene diene terpolymer rubber，EPDM)、乙烯丙烯橡膠（ethylene propylene rubber，EPR)、 熱塑性硫化橡膠（Thermoplastic Vulcanizates，TPV)、敗素橡膠、石夕 氟橡膠、聚乙婦混合物（Poly-Vinyl Fluoride，PVF)、聚偏氟乙稀 (Poly-Vinyl-Idene Fluoride，PVDF)、乙烯、四氟乙烯之共聚物 (Ethylene-tetrafluoroethylene copolymer，ETFE)、或乙烯、四氟乙烯 和六說丙烯之共聚物（Perfluoronateci ethylene propylene copolymer， EFEP)。此第二電絕緣層220之材質亦可為氟塑料（flu〇r〇plastics)。 第一電絕緣層210與第二電絕緣層22〇可利用共押方式組成。 於一實施例中，於第一電絕緣層210之下方可藉由接合劑或黏 著劑400設置一第二電絕緣層22〇，如圖5A所示。其中，第二電絕緣 層220之材質可為氟塑料(fluor〇plastics )，如聚乙烯混合物(poly_VinylIk's festivals have increased awareness of carbon and increased demand for green energy, and solar power has become an important alternative energy source. The solar panel module is usually installed outdoors, and the outdoor environment, such as tempering and temperature, is not conducive to the solar module. Therefore, the composition of the solar panel module, the structure of the shell, etc., are required to have sufficient durability and weather resistance. Sex, the system is required to have weather resistance I · raw and water 3 gas penetration rate is small. Because when the packaging material is peeled off or discolored due to moisture penetration, it will cause the line to be rotted. Following the above description, as shown in Figure i, in the structure of the general solar panel module, the component enclosed in the package is called the solar cell module 100, and the upper layer of the solar cell module 100 is heated by the heat 1111 (such as B. Acetate B. The co-polymerized lining, EVA) consists of a filling material to fill the gap of the solar cell module 100. The solar cell module 100 is exposed to the sun's light [over the surface of the glass 12G. Further, the inside of the solar cell module 100 is protected by a back sheet 13G composed of a sheet of heat-resistant and weather-resistant plastic material. The back t is mostly made by the glazing process, and it needs to be matured in the mature room. Therefore, the back sheet product will be warped after being cooked. Generally, the package of solar panel module adopts laminating process (laminati〇n P_SS), and the temperature is about 15 (the upper and lower sides of rc often require multiple placement processes and warpage between the membranes due to lamination of each membrane material and solar cell module. The degree is different, which in turn affects the yield of superposition. [New content] The purpose of private arrangement is to provide the structure of the back of the Huanyang touch, and to integrate the sealing material layer with the electrical insulation layer by means of extrusion. No need for additional paint paste and omitting the ripening step and the product (4) is low in quality. 1 Backboard' This creation has the objective of reducing the probability of fragmentation due to the difference between the height and the low shrinkage. The probability of poor solar cell module circuit. The purpose of this creation is to provide a solar panel mold and a back panel structure of the group, which can reduce the air layer when it is combined, so that it can have a faster pumping and discharging rate and better. The layer-by-layer force of the solar panel module, the braided layer, the material is PC_PE alloy; and the layer of sealing material is directly extruded (a-method directly) Formed on Wei riding and sealing material The layer has a surface embossed structure, wherein the material f of the sealing material is a cross-linked packaging material. The following is a detailed description of the specific embodiment with the accompanying drawings, so that it is easier to understand the purpose of the creation. The technical content, the features, and the effects achieved by the method. [Embodiment] FIG. 2 is a schematic diagram showing the structure of the backplane of the solar panel module according to the present invention. In this embodiment, the solar panel module The back plate structure comprises: a first electrical insulator 21G; and a sealing material layer, wherein the first insulating layer 21 () is made of ♦ citric acid vinegar» alloy (PC_p〇iyestei·A丨丨Gy). (4) The material layer is directly formed on the first-Wing edge layer (10) by means of a hot melt extrusion (eX_i〇n). The material of the sealing material layer is a cross-linked packaging material, and the surface layer of the sealing material layer has - The surface embossing structure, wherein the polycarbonate g s s alloy (pc_pGlyester A1I 〇 y) may be a polycarbonate S, a poly-p-f-g-glycol diol g alloy (pC_pETAll〇y), a polycarbonate M396491 ester-two Alcohol modified ethylene terephthalate alloy (PC-PETG Alloy) Polycarbonate-polybutylene terephthalate alloy (PC-PBTAlloy). Following the above description, in one embodiment, the material of the sealing material layer 300 is ethylene-vinyl acetate. Copolymer, EVA). In an embodiment, an organic or inorganic dye such as sulfuric acid (BaS〇4), carbonated mother (CaC03), titanium dioxide (Ti〇2) or carbon may be selectively added to the sealing material layer 300. Further, in an embodiment, an organic or inorganic dye such as barium sulfate (BaS04), calcium carbonate (CaC03), titanium dioxide (Ti02) or carbon may be selectively added to the first electrically insulating layer 210. Black (carbon black). Or in another embodiment, not shown, a skin layer containing an organic or inorganic dye may be selectively disposed on the upper surface or the lower surface of the first electrically insulating layer 210, not shown. In one embodiment, fluorophthalic plastic (fluor〇plaSl; ics) may also be added to the surface layer. In one embodiment, an organic or inorganic dye may also be added to the inner interlayer of the first electrically insulating layer 210, not shown. In an embodiment, a water blocking material such as polypropylene (PP), polyethylene (polypropylene propylene), polyethylene (polyamide) may be added to the skin layer of the first electrically insulating layer 210. PA), ethylene-vinyl acetate copolymer (EVA), ethylene propylene diene terpolymer rubber (EPDM), ethylene pr〇pyiene mbber (epr) or ethylene And ethylene vinyl alcohol (EVOH), please refer to FIG. 3A. In an embodiment, the sealing material layer 3 can be a two-layer structure, and the first sealing material layer 310 and the second sealing material layer 320. The first sealing material layer 310 of the upper layer has a surface embossing structure, and in an embodiment, the second sealing material layer 320 of the lower layer can selectively add an organic or inorganic pigment and anti-ultraviolet light. material. Referring to FIG. 3B, in one embodiment, the sealing material layer 3A may have a three-layer structure, and is composed of a first sealing material layer 310, a second sealing material layer wo, and a third sealing material layer 33〇. Wherein, the upper first sealing material layer 31 has a surface embossing structure, and 5 M396491 in an embodiment t 'the intermediate layer of the second sealing material layer 320 can selectively add an organic or inorganic dye (pigment) and anti-ultraviolet light material. Referring to FIG. 4, a second electrically insulating layer 220 may be disposed under the first electrically insulating layer 210 as a weatherable layer. The material of the second electrically insulating layer 220 may be a thermoplastic elastomer 'TPE' such as a polyolefinic elastomer (TP0) such as ethylene propylene diene terpolymer rubber (EPDM). , ethylene propylene rubber (EPR), thermoplastic vulcanizates (TPV), sulphate rubber, sulphur rubber, poly-Vinyl Fluoride (PVF), polyvinylidene fluoride (Poly) -Vinyl-Idene Fluoride, PVDF), Ethylene-tetrafluoroethylene copolymer (ETFE), or a copolymer of ethylene, tetrafluoroethylene and propylene (Perfluoronateci ethylene propylene copolymer, EFEP). The material of the second electrically insulating layer 220 may also be fluoroplastics. The first electrically insulating layer 210 and the second electrically insulating layer 22 can be formed by a co-pushing manner. In one embodiment, a second electrically insulating layer 22 is disposed under the first electrically insulating layer 210 by a bonding agent or adhesive 400, as shown in FIG. 5A. The material of the second electrical insulating layer 220 may be fluorinated plastics, such as a mixture of polyethylene (poly_Vinyl).
Fluoride ’ PVF)、聚偏氟乙烯（p〇iy_vinyi_jdene Fluoride，PVDF)、乙 婦四氟乙稀共《物（Ethylene-tetrafluoroethylene copolymer，ETFE) 或乙烯、四氟乙烯和六氟丙烯之共聚物（Perflu〇r〇nated ethylene propylene copolymer，EFEP)。 請參照圖5B，於一實施例中，於第一電絕緣層21〇與第二電絕 緣層22G間’可藉由接合劑或黏著劑設置一阻水阻氣層挪，如 一鋁箔層，用以阻隔外界之水氣。 4參照圖6,為本創作太陽能板模組之背板結構的製法之示意 圖於本只施例中’此製法包括下列步驟：提供一電絕緣以 及利用-熱_出（extrusiQn)方式將—密封材料層3⑻由模頭駕 6 M396491 擠出直接成型於電絕緣層200上且密封材料層300之上表面係具有一 表面壓花結構。於不同實施例中’電絕緣層200可為單層或多層結構， 若為多層結構可利用黏著組合或共同押出成型。又，密封材料層300 亦可為單層或多層結構’若為多層結構可利用共押出成型。Fluoride 'PVF), polyvinylidene fluoride (PVDF), Ethylene-tetrafluoroethylene copolymer (ETFE) or copolymer of ethylene, tetrafluoroethylene and hexafluoropropylene (Perflu) 〇r〇nated ethylene propylene copolymer, EFEP). Referring to FIG. 5B, in an embodiment, a water-blocking gas barrier layer may be disposed between the first electrically insulating layer 21 and the second electrically insulating layer 22G by using a bonding agent or an adhesive, such as an aluminum foil layer. To block the outside water. 4, referring to FIG. 6, a schematic diagram of a method for fabricating a backplane structure of a solar panel module. In the present embodiment, the method includes the following steps: providing an electrical insulation and sealing by an extrusion method. The material layer 3 (8) is directly molded on the electrically insulating layer 200 by die driving 6 M396491 and the surface of the sealing material layer 300 has a surface embossed structure. In various embodiments, the electrically insulating layer 200 can be a single layer or a multilayer structure, and if it is a multilayer structure, it can be formed by adhesive bonding or co-extrusion. Further, the sealing material layer 300 may have a single layer or a multilayer structure. If it is a multilayer structure, it can be formed by co-extrusion.
本創作之密封材料層與電絕緣層雖為共押出之產品，然而，因兩 種材料之融熔溫度並不相同，因此無法使用同模具共押出。故利用 不同模頭成型方式，先共押出電絕緣層，再共押出密封材料層直接成 型於電絕緣層上，故可獲得低收縮複合材料之背板結構。另外，若電 絕緣層係利用黏著組合成之多層材料時，雖於前述說明並未提及或圖 不’但可理解的是，其層與層間可利用額外之接合劑或黏著劑加以組 合0Although the sealing material layer and the electrical insulating layer of the present invention are co-extruded products, since the melting temperatures of the two materials are not the same, it is impossible to use the same mold for co-extrusion. Therefore, different die forming methods are used to first electrically push out the electrical insulating layer, and then the sealing material layer is directly formed on the electrical insulating layer, so that the back plate structure of the low shrinkage composite material can be obtained. Further, if the electrically insulating layer is formed by a combination of a plurality of layers of adhesive, it is not mentioned or illustrated in the foregoing description, but it is understood that the layers and layers may be combined with an additional bonding agent or adhesive.
於本創作中，密封材料層係直接成型於電絕緣層上。密封材料層 t可添加交聯劑，故背板進行太陽能板模組封裝之壓合程序時，因^ 口 ’皿度產生交聯，可直接封裝保護太陽電池模組。當密封材料層為多 層組合時’可讓不㈤層具有不同㈣程度，故可控繼合交聯速率並 消除快速交聯之應力殘留。又，可於單層或不同添加有機或無機 材料用以形成光線反射層或光線遮蔽層。若密封材料層使用職，其 醋酸乙稀（vinylacetate)高含量可提供優異的透明性。本創作之密去; 材料層表面具有特殊壓花形狀設計，於私製程時，密封材料層因融 熔而流動包覆太陽電池模組’配合抽氣負壓環境下，氣泡會因材料流 動而排出。密珊料層之材_亦可添加可化學鍵結接著材料，故於 壓合製程時’可產生接著反應。密封材料層亦可加入耐黃變添加劑，、 防止長時間溫度反應之裂化或黃化。又，亦可加入紫外線吸收劑 止太陽光曝曬後強烈紫外光破壞分解背板之材料。 稣分上述 (extrusion)方式將密封材 與電絕緣層整合為—複合式她，無需解塗·合並省略塗佈膠; 所需之數日誠倾且製品之_健；其倾結構平射減少^ 低差導致破片之卿1具有低錄轉可減少心辭與太陽電= 7 M396491 模組線路不良之機率；以及可減少封裝疊合時空氣層的產生，具有較 快的抽氣排泡速率與較佳的層接著力。 '、 以上所述之實施例僅係為說明本創作之技術思想及特點， 的在使熟訊概藝之人士能_解本創作之够並據施，二 能以之限定本創狀糊顏，即纽依本舰 ^不 均等變化或修飾，仍應涵蓋在本創作之專 ㈣所作之 8 M396491 【圖式簡單說明】 圖1習知太陽能板模組之示意圖。 圖2為本創作一實施例之示意圖。 圖3A與圖3B本創作不同實施例之示意圖。 圖4為本創作一實施例之示意圖。 圖5A與圖5B本創作不同實施例之示意圖。 圖6為本創作太陽能板模組之背板結構的製法示意圖。In the present creation, the sealing material layer is directly formed on the electrically insulating layer. The sealing material layer t can be added with a crosslinking agent. Therefore, when the backing plate is subjected to the pressing process of the solar panel module package, the solar cell module can be directly packaged and protected by cross-linking. When the sealing material layer is a multi-layer combination, the degree of the (five) layers can be different (four), so that the cross-linking rate can be controlled and the stress residue of the rapid cross-linking can be eliminated. Further, an organic or inorganic material may be added in a single layer or differently to form a light reflecting layer or a light shielding layer. If the sealing material layer is used, its high content of vinylacetate provides excellent transparency. The surface of the material layer has a special embossed shape design. In the private process, the sealing material layer flows and encapsulates the solar cell module due to melting. discharge. The material of the dense layer can also be chemically bonded to the material, so that a subsequent reaction can be produced during the pressing process. The sealing material layer may also be added with a yellowing resistant additive to prevent cracking or yellowing of the long-term temperature reaction. In addition, an ultraviolet absorber may be added to prevent the ultraviolet light from damaging the material of the decomposition back sheet after exposure to sunlight. In the above (extrusion) way, the sealing material and the electric insulating layer are integrated into a composite type, which does not need to be uncoated and combined to omit the coating glue; the required number of days is pleasing to the product; the tilting structure of the product is reduced by ^ The low difference leads to the fragmentation of Qing 1 which can reduce the rhetoric and solar power = 7 M396491 module circuit line probability; and can reduce the generation of air layer when the package is superimposed, with a faster pumping rate and A preferred layer adhesion force. 'The above-mentioned embodiments are only for explaining the technical ideas and characteristics of this creation, and those who can make the experience of the acquaintance can solve the creation and the second one can limit the creation of the creation. , that is, the New Zealand ship unequal change or modification, should still cover the 8 M396491 made by the author of this creation (4) [Simplified illustration] Figure 1 Schematic diagram of the conventional solar panel module. FIG. 2 is a schematic diagram of an embodiment of the present invention. 3A and 3B are schematic views of different embodiments of the present creation. 4 is a schematic diagram of an embodiment of the present invention. 5A and 5B are schematic views of different embodiments of the present creation. FIG. 6 is a schematic view showing the manufacturing method of the back plate structure of the solar panel module.
【主要元件符號說明】 100 太陽電池模組 110 熱塑性塑膠層 120 玻璃 130 背板 200 電絕緣層 210 第一電絕緣層 220 第二電絕緣層 230 阻水阻氣層 300 密封材料層 310 第一密封材料層 320 第二密封材料層 330 第三密封材料層 M396491 400 接合劑或黏著劑 500 模頭[Main component symbol description] 100 solar cell module 110 thermoplastic plastic layer 120 glass 130 back plate 200 electrically insulating layer 210 first electrically insulating layer 220 second electrically insulating layer 230 water blocking gas barrier layer 300 sealing material layer 310 first sealing Material layer 320 second sealing material layer 330 third sealing material layer M396491 400 bonding agent or adhesive 500 die