WO2017177829A1 - 双玻组件 - Google Patents

双玻组件 Download PDF

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Publication number
WO2017177829A1
WO2017177829A1 PCT/CN2017/078811 CN2017078811W WO2017177829A1 WO 2017177829 A1 WO2017177829 A1 WO 2017177829A1 CN 2017078811 W CN2017078811 W CN 2017078811W WO 2017177829 A1 WO2017177829 A1 WO 2017177829A1
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WO
WIPO (PCT)
Prior art keywords
eva
film
aluminum foil
double glass
glass assembly
Prior art date
Application number
PCT/CN2017/078811
Other languages
English (en)
French (fr)
Inventor
黄俊哲
赵志刚
刘洪明
闫德霖
林家辉
黄小龙
曹文兵
Original Assignee
珠海格力电器股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Priority to CA3021063A priority Critical patent/CA3021063C/en
Priority to US16/093,690 priority patent/US11258402B2/en
Priority to AU2017251411A priority patent/AU2017251411B2/en
Priority to EP17781805.1A priority patent/EP3444849B1/en
Priority to ES17781805T priority patent/ES2898902T3/es
Publication of WO2017177829A1 publication Critical patent/WO2017177829A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/20—Optical components
    • H02S40/22—Light-reflecting or light-concentrating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40—Thermal components
    • H02S40/42—Cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/12—Photovoltaic modules
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

Definitions

  • the present invention relates to the field of photovoltaic modules, and in particular to a double glass assembly.
  • the double-glass PV module Due to its good weather resistance, long life and excellent anti-PID performance, the double-glass PV module is especially suitable for islands and buildings combined with climate and salt spray.
  • the existing double glass assembly generally comprises a front panel glass, an EVA film, a solar cell panel, an EVA film, a rear panel glass, and a junction box under the rear panel glass.
  • the main component of the EVA film is ethylene-vinyl acetate, which functions as a glue, seal, insulation and protect the battery sheet in the assembly.
  • the EVA film close to the front glass is generally a high light transmission EVA film, and at the same time, in order to improve the light conversion efficiency of the double glass component, the EVA glue close to the back glass is provided.
  • the film is generally a high cut-off EVA film or a porcelain white EVA film.
  • the back plate of the double glass component is glass, the back plate reflection effect is lacked compared to the single glass component, resulting in a power of 5 to 8 W lower than that of the single glass component of the same specification.
  • the main object of the present invention is to provide a double glass assembly to solve the problem of low power of the double glass assembly in the prior art.
  • a double glass assembly comprising a front panel glass, a first adhesive film, a solar cell sheet group, a second adhesive film, an aluminum foil, which are sequentially stacked. Third film and back plate glass.
  • edge of the above second film is disposed around the edge of the aluminum foil.
  • the distance between the edge of the second adhesive film and the edge of the corresponding aluminum foil is 5 to 15 mm.
  • edge of the above third film is disposed around the edge of the aluminum foil.
  • the distance between the edge of the third adhesive film and the edge of the corresponding aluminum foil is 5 to 15 mm.
  • the first adhesive film is a high light transmission EVA adhesive film.
  • the second adhesive film and the third adhesive film are each independently selected from any one of a high cut-off EVA film and a porcelain white EVA film.
  • the double glass assembly further includes a junction box disposed on the surface of the rear panel glass away from the third adhesive film, the junction box being electrically connected to the solar cell panel and disposed adjacent to the short side of the rear panel glass.
  • the edge of the first adhesive film is disposed around the edge of the solar cell sheet group, and the first adhesive film, the second adhesive film and the solar cell chip group form an annular region, and the double glass component further includes an EVA blocking structure, and the EVA block The structure is embedded in an annular region between the first film and the second film.
  • the EVA blocking structure comprises: an EVA rubber block disposed at a top corner of the annular region, the EVA rubber block has a length to width dimension of 40 to 50*20 to 30 mm; and the first EVA rubber strip is disposed in the annular region.
  • the width of the first EVA strip is 30-40 mm, the length of the first EVA strip is equal to the length of the long side of the back panel glass;
  • the second EVA strip is disposed in the short side region of the annular region, wherein The length of the two EVA strips is equal to the length of the short side of the rear panel glass, and the width of the second EVA strip disposed near the short side of the junction box is 47 to 52 mm, which is located away from the short side area of the junction box.
  • the second EVA strip has a width of 20 to 30 mm.
  • aluminum foil is added before the back plate glass of the double glass component, and since the aluminum foil has high light reflectivity, the reflection effect on the transmitted light energy is increased, and the power of the double glass component is significantly improved.
  • the aluminum foil since the aluminum foil has good thermal conductivity, the heat generated by the solar cell chip group can be dissipated in time, so that the temperature of the double glass component can be reduced in time, thereby reducing the temperature coefficient influence factor and prolonging the daily average high efficiency of the double glass component. Output time.
  • the cost of aluminum foil is relatively low, and the cost advantage is particularly obvious in comparison with the prior art scheme of using porcelain white EVA and high cutoff EVA to increase reflection.
  • FIG. 1 shows a schematic structural view of a double glass assembly provided in accordance with an exemplary embodiment of the present application
  • FIG. 2 is a schematic view showing the structure of an EVA blocking structure and a solar cell sheet set on a first adhesive film of a double glass assembly provided by a preferred embodiment of the present application.
  • the back plate of the prior art double glass component is glass, and the backlight of the single glass component is lacking, so that the power is 5-8W lower than that of the single glass component of the same specification.
  • This application provides a double glass
  • the assembly as shown in FIG. 1, includes a front glass 10, a first film 20, a solar cell panel 30, a second film 40, an aluminum foil 50, a third film 60, and a rear layer. Plate glass 70.
  • the aluminum foil 50 is added before the back glass of the double glass assembly. Since the aluminum foil 50 has high light reflectivity, the reflection effect on the transmitted light energy is increased, and the power of the double glass assembly is significantly improved. At the same time, since the aluminum foil 50 has good thermal conductivity, the heat generated by the solar cell panel 30 can be dissipated in time, so that the temperature of the double glass component can be reduced in time, thereby reducing the temperature coefficient influence factor and prolonging the daily average of the double glass component. Efficient power output time. In addition, the cost of the aluminum foil 50 is relatively low, and the cost advantage is particularly obvious in comparison with the prior art scheme of using porcelain white EVA and high cutoff EVA to increase reflection.
  • the inventor has verified through experiments that the power of the double-glass component containing 60 solar cells can be increased by about 5W, and the effect is remarkable.
  • the edge of the second film 40 is disposed around the edge of the aluminum foil 50.
  • the distance between the edge of the second adhesive film 40 and the edge corresponding to the aluminum foil 50 is 5 to 15 mm.
  • the edge of the third film 60 is disposed around the edge of the aluminum foil 50 to utilize the second film 40 and the third film. 60 wrapped in aluminum foil 50. Further, also for the safety and convenience of the laminating operation, as shown in Fig. 1, it is preferable that the distance between the edge of the third adhesive film 60 and the edge of the corresponding aluminum foil 50 is 5 to 15 mm.
  • the size of the aluminum foil 50 described above is equal to the size of the battery sheet group 30.
  • the first film 20 is a high light transmission EVA film.
  • the high light transmission EVA film is used to increase the probability of light entering the solar cell panel 30, thereby increasing the power of the double glass component.
  • the second adhesive film 40 and the third adhesive film 60 are each independently selected from any of the high cut-off EVA film and the porcelain white EVA film. One.
  • the double glass assembly further includes a junction box 80 disposed on the surface of the rear plate glass 70 away from the third adhesive film 60, the junction box 80 and the solar cell sheet.
  • the set 30 is electrically connected and disposed adjacent to the short side of the rear panel glass 70.
  • the junction box 80 is utilized to facilitate the outward transfer of electrical energy generated by the dual glass assemblies of the present application.
  • the edge of the first film 20 is disposed around the edge of the solar cell panel 30, first.
  • An annular region is formed between the adhesive film 20, the second adhesive film 40 and the solar cell chip group 30.
  • the double glass component further includes an EVA blocking structure 90 embedded in the first adhesive film 20 and the second adhesive film 40. Between the ring areas. By embedding the EVA blocking structure 90 in the annular region between the first adhesive film 20 and the second adhesive film 40, the EVA barrier structure 90 is used to fill the space of the aluminum foil 50 and the glass after the deformation in the lamination process, thereby Reduce the appearance of bubbles.
  • the EVA blocking structure 90 includes an EVA rubber block 91, a first EVA strip 92, and a second EVA strip 93.
  • the EVA block 91 is disposed in the annular region. At the top corner, the EVA block 91 has a length to width dimension of 40 to 50*20 to 30 mm, preferably 45*25 mm; the first EVA strip 92 is disposed in the long side region of the annular region, and the width of the first EVA strip 92 is The size is 30-40, preferably 35mm, the length of the first EVA strip 92 is equal to the length of the long side of the back panel glass 70; the second EVA strip 93 is disposed in the short side area of the annular region, wherein the second EVA strip 93 The length of the second EVA strip 93 disposed adjacent to the short side region of the junction box 80 is 47 to 52 mm, preferably 49 mm, and is located away from the short side of the junction box 80.
  • the second EVA strip 93 provided in the region has a width dimension of 20 to 30 mm, preferably 25 mm.
  • Different shapes and sizes of EVA are set for different positions and deformations in the lamination process, which further reduces the appearance of bubbles. Due to the serious deformation of the lamination process at the four corners of the assembly, the stress is greatest at the end of the lamination, resulting in more molten EVA film extrusion, so the size of the EVA rubber block at the top corner can be filled and squeezed.
  • the molten EVA in addition to the EVA edge, melts into the solar cell stack to act as a gradient to relieve stress and prevent backflow of bubbles into the assembly.
  • the tempered glass is lifted onto the laminating workbench with the glass suede facing up, and the tempered glass is inspected for defects as a front glass;
  • the first film on the front glass ensures that the pile is facing up, taking care to ensure the flatness of the first film and the edge. Place the solar cell on the first film, pay attention to the positive and negative positions and check for the phenomenon of cracking or soldering.
  • the distance between the strings is 4.2 ⁇ 0.5mm, and there is no obvious deviation between the string spacing.
  • the short side margin of the front panel glass is 14 ⁇ 1mm, and there is no obvious deviation between the margins; the template is adhered with tape to ensure the edge of the glass of the front panel is flush, and the bus bar is welded according to the template, and the remaining material is lightly cut. It is a 90mm*295mm insulating backing plate, and the upper and lower dimensions are 100mm*305mm EVA film to form a solar cell panel;
  • the first EVA strip with a width of 35 mm is disposed on the long side of the film.
  • the width of the second EVA strip near the short side of the junction box is 49 mm, away from the junction box.
  • the short side second EVA strip has a width dimension of 25 mm and a control dimensional deviation of ⁇ ⁇ 2 mm, and the length of the strip is equal to the edge length of the corresponding solar cell sheet.
  • the prepared aluminum foil paper is cut and laid on the second adhesive film, it is ensured that the aluminum foil is flat and has no obvious wrinkles, and the direct contact between the aluminum foil paper and the bus bar is prevented to cause a short circuit problem;
  • Covering the back glass with the third film prevents the battery from being fractured, ensuring that the bus bar is aligned with the position of the terminal, and the upper and lower glass are jammed with the two-handed tiger mouth, and the process is to prevent the battery from shifting.
  • the first EVA film is Svik's high-transmission EVA
  • the second EVA film and the third EVA film are both Svik's high-cut EVA.
  • the double glass assembly includes a front panel glass, a first EVA film, a solar cell panel, a second EVA film, and a back panel glass which are sequentially stacked.
  • the double glass assembly added an aluminum foil and a third EVA film between the second EVA film and the back plate glass of Comparative Example 1. Moreover, the length and width dimensions of the EVA rubber block are 45*25 mm; the length and width dimensions of the first EVA rubber strip are 35*25 mm; and the length and width dimensions of the second EVA rubber strip are 49*25 mm.
  • the solar standard test conditions were adopted: spectrum AM1.5, irradiance 1000 W/m2, component temperature 25 ° C, and test equipment for Voc, Isc, Vm, Im, and Pm by Boss Solar Module I-V Tester. The test results are shown in Table 1.
  • the component power of the embodiment 1 in which the reflective aluminum foil was added was increased by 2.4% compared with the component power of the comparative example 1, and the calculation of the component converted to 250 W was equivalent to an increase in the power of the module by 6 W.
  • the addition of reflective aluminum foil can increase the profit of photovoltaic modules by 24 yuan.
  • the structural laminated structure of the double glass assembly is the same as that of the first embodiment, and an EVA blocking structure is added.
  • the length and width dimensions of the EVA rubber block are 45*25 mm; the width dimension of the first EVA rubber strip is 35 mm; and the short edge area near the junction box is located.
  • the second EVA strip is disposed to have a width dimension of 49 mm, and the second EVA strip disposed away from the short side region of the junction box has a width dimension of 25 mm, and the length of the strip is opposite to the edge length of the corresponding solar cell sheet. equal.
  • the structure of the double-glass assembly is the same as that of the first embodiment, and an EVA blocking structure is added.
  • the length and width dimensions of the EVA rubber block are 40*30 mm; the length and width of the first EVA rubber strip are 30 mm; and the short side of the junction box is located near the short side of the junction box.
  • the width of the second EVA strip set in the area is 52 mm, and the width of the second EVA strip located away from the short side area of the junction box is 20 mm, and the length of the strip is corresponding to the edge of the corresponding solar cell sheet. The length is equal.
  • the structural laminated structure of the double glass assembly is the same as that of the first embodiment, and an EVA blocking structure is added.
  • the length and width dimensions of the EVA rubber block are 30*20 mm; the length and width dimensions of the first EVA rubber strip are 40*20 mm;
  • the second EVA strip disposed in the short side area has a width dimension of 47 mm, and the second EVA strip disposed away from the short side area of the junction box has a width dimension of 30 mm, and the length of the strip is corresponding to the solar cell sheet.
  • the edges are equal in length.
  • the aluminum foil is added before the back glass of the double glass assembly. Since the aluminum foil has high light reflectivity, the reflection effect on the transmitted light energy is increased, and the power of the double glass assembly is significantly improved. At the same time, since the aluminum foil has good thermal conductivity, the heat generated by the solar cell chip group can be dissipated in time, so that the temperature of the double glass component can be reduced in time, thereby reducing the temperature coefficient influence factor and prolonging the daily average high efficiency of the double glass component. Output time. In addition, the cost of aluminum foil is relatively low, and the cost advantage is particularly obvious in comparison with the prior art scheme of using porcelain white EVA and high cutoff EVA to increase reflection.

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Abstract

一种双玻组件，包括依次叠置的前板玻璃（10）、第一胶膜（20）、太阳能电池片组（30）、第二胶膜（40）、铝箔（50）、第三胶膜（60）和后板玻璃（70）。在双玻组件的后板玻璃之前增加了铝箔，由于铝箔具有高反光性，因此增加了对透射光能的反射作用，使双玻组件功率显著提升。同时，由于铝箔具备较好的导热性能，可及时将太阳能电池片组产生的热量传导散失，使双玻组件温度得到及时降低，从而降低了温度系数影响因子，延长双玻组件的日平均高效功率输出时间。另外，铝箔的成本较低，相对于现有技术中采用瓷白EVA和高截止EVA增加反射作用的方案其成本优势尤为明显。

Description

双玻组件 技术领域
本发明涉及光伏组件领域，具体而言，涉及一种双玻组件。
背景技术
双玻光伏组件由于具备耐候性好、寿命长、抗PID性能优异等特点，特别适合于气候湿润盐雾的海岛及与建筑结合部分。
现有的双玻组件一般包括依次叠置的前板玻璃、EVA胶膜、太阳能电池片组、EVA胶膜、后板玻璃，后板玻璃的下方还设有接线盒。其中，EVA胶膜的主要成分是乙烯-醋酸乙烯酯，在组件中起胶联、密封、绝缘以及保护电池片的作用。此外，为了提高双玻组件正面的透光率，靠近前板玻璃的EVA胶膜一般为高透光EVA胶膜，同时，为了提高双玻组件对光的转换效率，靠近后板玻璃的EVA胶膜一般为高截止EVA胶膜或者瓷白EVA胶膜。
但由于双玻组件的背板为玻璃，相对于单玻组件缺少背板反光作用，造成功率相对同规格单玻组件低5～8W。
发明内容
本发明的主要目的在于提供一种双玻组件，以解决现有技术中的双玻组件功率低的问题。
为了实现上述目的，根据本发明的一个方面，提供了一种双玻组件，该双玻组件包括依次叠置的前板玻璃、第一胶膜、太阳能电池片组、第二胶膜、铝箔、第三胶膜和后板玻璃。
进一步地，上述第二胶膜的边缘围绕铝箔的边缘设置。
进一步地，上述第二胶膜的边缘与对应铝箔的边缘的距离为5～15mm。
进一步地，上述第三胶膜的边缘围绕铝箔的边缘设置。
进一步地，上述第三胶膜的边缘与对应铝箔的边缘的距离为5～15mm。
进一步地，上述第一胶膜为高透光EVA胶膜。
进一步地，上述第二胶膜和第三胶膜各自独立地选自高截止EVA胶膜和瓷白EVA胶膜中的任意一种。
进一步地，上述双玻组件还包括设置在后板玻璃的远离第三胶膜表面上的接线盒，接线盒与太阳能电池片组电连接且靠近后板玻璃的短边设置。
进一步地，上述第一胶膜的边缘围绕太阳能电池片组的边缘设置，第一胶膜、第二胶膜与太阳能电池片组之间形成环形区域，双玻组件还包括EVA阻挡结构，EVA阻挡结构嵌设在第一胶膜与第二胶膜之间的环形区域中。
进一步地，上述EVA阻挡结构包括：EVA胶块，设置在环形区域的顶角处，EVA胶块的长宽尺寸为40～50*20～30mm；第一EVA胶条，设置在环形区域的长边区域，第一EVA胶条的宽度尺寸为30～40mm，第一EVA胶条长度与后板玻璃的长边长度相等；第二EVA胶条，设置在环形区域的短边区域，其中，第二EVA胶条的长度与后板玻璃的短边长度相等，位于靠近接线盒的短边区域所设置的第二EVA胶条的宽度尺寸为47～52mm，位于远离接线盒的短边区域所设置的第二EVA胶条的宽度尺寸为20～30mm。
应用本发明的技术方案，在双玻组件的后板玻璃之前增加了铝箔，由于铝箔具有高反光性，因此增加了对透射光能的反射作用，使双玻组件功率显著提升。同时，由于铝箔具备较好的导热性能，可及时将太阳能电池片组产生的热量传导散失，使双玻组件温度得到及时降低，从而降低了温度系数影响因子，延长双玻组件的日平均高效功率输出时间。另外，铝箔的成本较低，相对于现有技术中采用瓷白EVA和高截止EVA增加反射作用的方案其成本优势尤为明显。
附图说明
构成本申请的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1示出了根据本申请一种典型实施方式提供的双玻组件的结构示意图；以及
图2示出了本申请一种优选实施例提供的双玻组件的设置在第一胶膜上的EVA阻挡结构和太阳能电池片组的结构示意图。
其中，上述附图包括以下附图标记：
10、前板玻璃；20、第一胶膜；30、太阳能电池片组；40、第二胶膜；50、铝箔；60、第三胶膜；70、后板玻璃；80、接线盒；90、EVA阻挡结构；91、EVA胶块；92、第一EVA胶条；93、第二EVA胶条。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。
如背景技术中所记载的，现有技术的双玻组件的背板为玻璃，相对于单玻组件缺少背板反光作用，造成功率相对同规格单玻组件低5～8W，为了解决该问题，本申请提供了一种双玻 组件，如图1所示，该双玻组件包括依次叠置的前板玻璃10、第一胶膜20、太阳能电池片组30、第二胶膜40、铝箔50、第三胶膜60和后板玻璃70。
在双玻组件的后板玻璃之前增加了铝箔50，由于铝箔50具有高反光性，因此增加了对透射光能的反射作用，使双玻组件功率显著提升。同时，由于铝箔50具备较好的导热性能，可及时将太阳能电池片组30产生的热量传导散失，使双玻组件温度得到及时降低，从而降低了温度系数影响因子，延长双玻组件的日平均高效功率输出时间。另外，铝箔50的成本较低，相对于现有技术中采用瓷白EVA和高截止EVA增加反射作用的方案其成本优势尤为明显。
发明人经过试验验证，采用该技术可将含有60片太阳能电池片的双玻组件的功率提升5W左右，效果较为显著。
为了避免铝箔50与太阳能电池片组30接触引起意外的短路问题，如图1所示，优选第二胶膜40的边缘围绕铝箔50的边缘设置。同时为了层压操作的安全性和方便性，如图1所示，优选上述第二胶膜40的边缘与对应所述铝箔50的边缘的距离为5～15mm。
进一步地，为了保证铝箔50在胶膜之间的稳固性，如图1所示，优选上述第三胶膜60的边缘围绕铝箔50的边缘设置，以利用第二胶膜40和第三胶膜60包裹住铝箔50。此外，同样是为了层压操作的安全性和方便性，如图1所示，优选上述第三胶膜60的边缘与对应铝箔50的边缘的距离为5～15mm。上述铝箔50的大小与电池片组30的大小相等。
为了进一步提高双玻组件的功率，优选上述第一胶膜20为高透光EVA胶膜。利用高透光EVA胶膜增加光线进入太阳能电池片组30的几率，进而增加双玻组件的功率。
在成本可接受的前提下，为了更加优化双玻组件的功率，优选第二胶膜40和所述第三胶膜60各自独立地选自高截止EVA胶膜和瓷白EVA胶膜中的任意一种。
在本申请一种优选的实施例中，如图1所示，上述双玻组件还包括设置在后板玻璃70的远离第三胶膜60表面上的接线盒80，接线盒80与太阳能电池片组30电连接且靠近后板玻璃70的短边设置。利用该接线盒80便于本申请的双玻组件产生的电能向外输送。
在层压过程中，由于铝箔50的硬度相对于胶膜较大，因此容易出现气泡问题，如图2所示，优选第一胶膜20的边缘围绕太阳能电池片组30的边缘设置，第一胶膜20、第二胶膜40与太阳能电池片组30之间形成环形区域，双玻组件还包括EVA阻挡结构90，该EVA阻挡结构90嵌设在第一胶膜20与第二胶膜40之间的环形区域中。通过在第一胶膜20和第二胶膜40之间的环形区域中嵌设EVA阻挡结构90，在层压过程中利用该EVA阻挡结构90填补铝箔50和玻璃形变后空出的空间，进而减少了气泡的出现。
在另一种优选的实施例中，如图2所示，上述EVA阻挡结构90包括EVA胶块91、第一EVA胶条92和第二EVA胶条93，EVA胶块91设置在环形区域的顶角处，EVA胶块91的长宽尺寸为40～50*20～30mm，优选为45*25mm；第一EVA胶条92设置在环形区域的长边区域，第一EVA胶条92的宽度尺寸为30～40，优选为35mm，第一EVA胶条92长度与后板玻璃70的长边长度相等；第二EVA胶条93设置在环形区域的短边区域，其中，第二EVA胶条93 的长度与后板玻璃的短边长度相等，位于靠近接线盒80的短边区域所设置的第二EVA胶条93的宽度尺寸为47～52mm，优选为49mm，位于远离接线盒80的短边区域所设置的第二EVA胶条93的宽度尺寸为20～30mm，优选为25mm。针对不同位置在层压过程中的受力以及形变不同，设置不同形状和大小的EVA，进而更明显地减少了气泡的出现。由于组件四个边角处层压过程变形教严重，层压结束后该处应力最大，导致挤出的熔化EVA胶膜较多，所以顶角处的EVA胶块的尺寸稍大可以填充被挤出的熔化EVA，此外EVA边缘在熔化后伸入太阳能电池片组下起梯度缓解应力的作用，且防止气泡倒流灌入组件。
为了本领域技术人员更好地实施本申请，以下将对本申请双玻组件的设置和层压方法进行描述：
钢化玻璃抬至叠层工作台上，玻璃绒面朝上，检查钢化玻璃有无缺陷，作为前板玻璃；
在前板玻璃上铺设第一胶膜保证绒面向上，注意保证第一胶膜的平整性及与边缘平齐。将太阳能电池片铺排在第一胶膜上，注意正负极位同时检查有无隐裂、虚焊等现象，各电池串间距为4.2±0.5mm，且串间距间无明显偏差，外端两串距前板玻璃短边边距14±1mm，边距间无明显偏差；用胶带粘敷设模板保证与前板玻璃边缘平齐，按照模板焊接汇流条后轻剪余料，引出孔处铺尺寸为90mm*295mm绝缘背板，并上下铺尺寸为100mm*305mm EVA膜，形成太阳能电池片组；
在太阳能电池片组上铺设第二胶膜，在汇流条引出端处切孔，在第一胶膜的顶角处垫三层EVA长宽尺寸分别为45mm*25mm的EVA胶块，在第一胶膜的长边区域设置宽度尺寸为35mm的第一EVA胶条，在第一胶膜的短边区域，靠近接线盒的短边的第二EVA胶条的宽度尺寸为49mm，远离接线盒的短边的第二EVA胶条的宽度尺寸为25mm，控制尺寸偏差≤±2mm，上述胶条的长度与对应的太阳能电池片的边缘长度相等。
将准备好的铝箔纸裁切好后铺设于该第二胶膜之上，注意保证铝箔平整、无明显褶皱，防止铝箔纸与汇流条之间直接接触引发短路问题；
在铺设平整的铝箔纸之上铺设第三胶膜将铝箔纸包裹于第二胶膜和第三胶膜之间，最好保证胶膜平正同时尺寸超过铝箔纸边缘10mm；
将背板玻璃覆盖于第三胶膜上防止压裂电池片，保证汇流条与接线口位置对齐，用双手虎口将上下玻璃卡齐，过程注意防止电池片偏移。
层压前对组件进行E-L测试，查看有无隐裂、碎片、虚焊等，确保无品质缺陷后进行组件层压，设定层压参数将组件放入层压机层压，保证层压完后的组件无气泡、裂片以及汇流条位移等现象。层压完成后进行E-L测试保证组件无明显缺陷，后用削边到削掉边角EVA余量保证组件边缘平齐美观性。将层压后的铝箔反光组件防置于L-V测试仪上，进行组件功率测试。
以下将结合实施例和对比例，进一步说明本申请的有益效果。
以太阳能电池片组中具有6片太阳能电池片为例，第一EVA胶膜为斯维克的高透EVA，第二EVA胶膜和第三EVA胶膜均为斯维克的高截止EVA。
对比例1
双玻组件包括依次叠置的前板玻璃、第一EVA胶膜、太阳能电池片组、第二EVA胶膜、后板玻璃。
实施例1
双玻组件在对比例1的第二EVA胶膜和后板玻璃之间增加铝箔和第三EVA胶膜。且EVA胶块的长宽尺寸为45*25mm；第一EVA胶条的长宽尺寸为35*25mm；第二EVA胶条的长宽尺寸为49*25mm。
采用太阳能标准测试条件：光谱AM1.5，辐照度1000W/m2,组件温度25℃,测试设备为博硕太阳能组件I-V测试仪检测Voc、Isc、Vm、Im和Pm，检测结果见表1。
表1
  对比例1 实施例1
Voc(V) 3.30 3.33
Isc(A) 8.60 8.72
Vm(V) 2.63 2.65
Im(A) 7.97 8.09
Pm(W) 20.95 21.40
由上述数据对比可以看出，增加了反光铝箔的实施例1的组件功率比对比例1的组件功率提高了2.4％，换算成250W的组件计算，相当于使组件功率提高6W。假设光伏组件的售价是4元/W，增加反光铝箔可以使光伏组件利润提高24元。
实施例2
双玻组件的结构层叠结构与实施例1相同，增设了EVA阻挡结构，EVA胶块的长宽尺寸为45*25mm；第一EVA胶条的宽度尺寸为35mm；位于靠近接线盒的短边区域所设置的第二EVA胶条的宽度尺寸为49mm，位于远离接线盒的短边区域所设置的第二EVA胶条的宽度尺寸为25mm，上述胶条的长度与对应的太阳能电池片的边缘长度相等。
实施例3
双玻组件的结构层叠结构与实施例1相同，增设了EVA阻挡结构，EVA胶块的长宽尺寸为40*30mm；第一EVA胶条的长宽尺寸为30mm；位于靠近接线盒的短边区域所设置的第二EVA胶条的宽度尺寸为52mm，位于远离接线盒的短边区域所设置的第二EVA胶条的宽度尺寸为20mm，上述胶条的长度与对应的太阳能电池片的边缘长度相等。
实施例4
双玻组件的结构层叠结构与实施例1相同，增设了EVA阻挡结构，EVA胶块的长宽尺寸为30*20mm；第一EVA胶条的长宽尺寸为40*20mm；位于靠近接线盒的短边区域所设置的第二EVA胶条的宽度尺寸为47mm，位于远离接线盒的短边区域所设置的第二EVA胶条的宽度尺寸为30mm，上述胶条的长度与对应的太阳能电池片的边缘长度相等。
经观察，实施例2至4的气泡明显少于实施例1，且实施例2几乎没有气泡。
从以上的描述中，可以看出，本发明上述的实施例实现了如下技术效果：
在双玻组件的后板玻璃之前增加了铝箔，由于铝箔具有高反光性，因此增加了对透射光能的反射作用，使双玻组件功率显著提升。同时，由于铝箔具备较好的导热性能，可及时将太阳能电池片组产生的热量传导散失，使双玻组件温度得到及时降低，从而降低了温度系数影响因子，延长双玻组件的日平均高效功率输出时间。另外，铝箔的成本较低，相对于现有技术中采用瓷白EVA和高截止EVA增加反射作用的方案其成本优势尤为明显。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种双玻组件，其特征在于，包括依次叠置的前板玻璃(10)、第一胶膜(20)、太阳能电池片组(30)、第二胶膜(40)、铝箔(50)、第三胶膜(60)和后板玻璃(70)。
  2. 根据权利要求1所述的双玻组件，其特征在于，所述第二胶膜(40)的边缘围绕所述铝箔(50)的边缘设置。
  3. 根据权利要求1所述的双玻组件，其特征在于，所述第二胶膜(40)的边缘与对应所述铝箔(50)的边缘的距离为5～15mm。
  4. 根据权利要求1至3中任一项所述的双玻组件，其特征在于，所述第三胶膜(60)的边缘围绕所述铝箔(50)的边缘设置。
  5. 根据权利要求4所述的双玻组件，其特征在于，所述第三胶膜(60)的边缘与对应所述铝箔(50)的边缘的距离为5～15mm。
  6. 根据权利要求1所述的双玻组件，其特征在于，所述第一胶膜(20)为高透光EVA胶膜。
  7. 根据权利要求1所述的双玻组件，其特征在于，所述第二胶膜(40)和所述第三胶膜(60)各自独立地选自高截止EVA胶膜和瓷白EVA胶膜中的任意一种。
  8. 根据权利要求1所述的双玻组件，其特征在于，所述双玻组件还包括设置在所述后板玻璃(70)的远离所述第三胶膜(60)表面上的接线盒(80)，所述接线盒(80)与所述太阳能电池片组(30)电连接且靠近所述后板玻璃(70)的短边设置。
  9. 根据权利要求8所述的双玻组件，其特征在于，所述第一胶膜(20)的边缘围绕所述太阳能电池片组(30)的边缘设置，所述第一胶膜(20)、所述第二胶膜(40)与所述太阳能电池片组(30)之间形成环形区域，所述双玻组件还包括EVA阻挡结构(90)，所述EVA阻挡结构(90)嵌设在所述第一胶膜(20)与所述第二胶膜(40)之间的环形区域中。
  10. 根据权利要求9所述的双玻组件，其特征在于，所述EVA阻挡结构(90)包括：
    EVA胶块(91)，设置在所述环形区域的顶角处，所述EVA胶块(91)的长宽尺寸为40～50*20～30mm；
    第一EVA胶条(92)，设置在所述环形区域的长边区域，所述第一EVA胶条(92)的宽度尺寸为30～40mm，所述第一EVA胶条(92)长度与所述后板玻璃(70)的长边长度相等；
    第二EVA胶条(93)，设置在所述环形区域的短边区域，其中，所述第二EVA胶条(93)的长度与所述后板玻璃的短边长度相等，位于靠近所述接线盒(80)的短边区域所设置的所述第二EVA胶条(93)的宽度尺寸为47～52mm，位于远离所述接线盒(80)的短边区域所设置的所述第二EVA胶条(93)的宽度尺寸为20～30mm。
PCT/CN2017/078811 2016-04-14 2017-03-30 双玻组件 WO2017177829A1 (zh)

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