WO2020113950A1 - 双玻光伏组件 - Google Patents

双玻光伏组件 Download PDF

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Publication number
WO2020113950A1
WO2020113950A1 PCT/CN2019/093536 CN2019093536W WO2020113950A1 WO 2020113950 A1 WO2020113950 A1 WO 2020113950A1 CN 2019093536 W CN2019093536 W CN 2019093536W WO 2020113950 A1 WO2020113950 A1 WO 2020113950A1
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WO
WIPO (PCT)
Prior art keywords
frame
double
laminate
photovoltaic module
glass photovoltaic
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/093536
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English (en)
French (fr)
Other versions
WO2020113950A8 (zh
Inventor
陈道远
李欣
张凯
刘玲玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI JA SOLAR TECHNOLOGY Co Ltd
Original Assignee
SHANGHAI JA SOLAR TECHNOLOGY Co Ltd
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
Priority claimed from CN201910199346.1A external-priority patent/CN109787549A/zh
Priority claimed from CN201920641985.4U external-priority patent/CN209748480U/zh
Priority to MYPI2020004847A priority Critical patent/MY200705A/en
Application filed by SHANGHAI JA SOLAR TECHNOLOGY Co Ltd filed Critical SHANGHAI JA SOLAR TECHNOLOGY Co Ltd
Priority to EP19892626.3A priority patent/EP3748842A4/en
Priority to AU2019391925A priority patent/AU2019391925B2/en
Priority to JP2021517098A priority patent/JP7083071B2/ja
Priority to KR1020207028334A priority patent/KR102426298B1/ko
Priority to US17/041,406 priority patent/US11522089B2/en
Publication of WO2020113950A1 publication Critical patent/WO2020113950A1/zh
Publication of WO2020113950A8 publication Critical patent/WO2020113950A8/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/93—Interconnections
    • H10F77/933—Interconnections for devices having potential barriers
    • H10F77/935—Interconnections for devices having potential barriers for photovoltaic devices or modules
    • H10F77/937—Busbar structures for modules
    • 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
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • H02S30/10—Frame structures
    • 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
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • H10F19/807—Double-glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/93—Interconnections
    • H10F77/933—Interconnections for devices having potential barriers
    • H10F77/935—Interconnections for devices having potential barriers for photovoltaic devices or modules
    • H10F77/939—Output lead wires or elements
    • 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

Definitions

  • the present disclosure relates to the field of photovoltaic technology, and in particular to a double glass photovoltaic module.
  • the double glass photovoltaic module is a photovoltaic module encapsulated by a double-sided glass, and the cover plate and the back plate of the laminate are both glass plates.
  • double-glass modules can be divided into single-sided double-glass photovoltaic modules (solar cells are single-sided solar cells, only the front of the module can generate electricity), and double-sided double-glass photovoltaic modules (solar (The battery is a double-sided solar cell, and both the front and back of the module can generate electricity).
  • a segmented frame 2' is installed on the long sides of both sides of the laminate 1, and the components are installed on the bracket through the segmented frame 2', wherein the bracket includes a longitudinal bracket 3 disposed along the long side of the laminate 1 'And a lateral bracket 4 provided along the short side of the laminate 2.
  • the horizontal bracket 4'in the installation method shown in FIG. 1 will affect the incident light on the back and affect the amount of power generated on the back of the double-glass module. Therefore, in the photovoltaic power generation system, double-sided The glass components are usually installed in the following ways:
  • a frame 2' is installed around the laminate 1.
  • the module is installed on the longitudinal bracket through the frame on the long side, and the back of the module is also not covered by the horizontal bracket.
  • the problem with this method is that since the component is usually placed at an angle to the ground, the lower frame of the component will block the light from the ground from radiating to the back of the component, reducing its power generation; and the lower frame also It is easy to accumulate ash and snow, and hot spots will be generated in the ash and snow parts, which will not only reduce the power generation of the module, but also damage the module to a certain extent.
  • An embodiment of the present disclosure provides a double-glass photovoltaic module, including a laminate, a junction box, and first and second frames only provided on the long sides of the laminate;
  • the laminate includes a cover glass, a first encapsulating film, a battery string, a second encapsulating film, a back glass, and a bus bar;
  • the back plate glass is provided with through holes
  • One end of the bus bar is connected to the battery string, and the other end of the bus bar passes through the through hole and is bent to form a bent edge and then connected to the junction box;
  • the bent edge of the bus bar does not contact the edge of the through hole.
  • first frame and the second frame are distributed axisymmetrically with the longitudinal centerline of the laminate as the axis of symmetry.
  • the distance between the bent edge of the bus bar and the edge of the through hole is more than 1 mm.
  • the first frame is distributed axisymmetrically with the transverse centerline of the laminate as the axis of symmetry, and/or the second frame is based on the laminate
  • the horizontal centerline is the axis of symmetry and is distributed axisymmetrically
  • the length of the first frame and the second frame account for more than 50% of the length of the long side of the laminate.
  • first frame and the second frame include: a first mounting plate, a second mounting plate and a connecting plate, the first mounting plate and the second mounting plate Oppositely arranged, and the first side of the first mounting plate and the first side of the second mounting plate are respectively connected to the connecting plate;
  • the laminate is disposed between the first mounting board and the second mounting board, and is fixed to the first mounting board and the second mounting board by an adhesive.
  • an elastic protector is further provided between the first mounting plate and the second mounting plate;
  • the elastic protector is formed as a U-shaped body, and the U-shaped body includes : Upper and lower parts arranged oppositely; and a connecting part connecting the upper and lower parts; the upper part, the lower part and the connecting part are fixed to the first connecting plate, the second connecting plate and the connecting plate, respectively ;
  • a part of the laminate is located between the upper part and the lower part, the part of the laminate located outside the elastic protection member and the first connection plate and the second connection plate by the bonding ⁇ Agent fixed.
  • a protrusion is formed above the upper part of the U-shaped body; the surface opposite to the first mounting plate and the second mounting plate is formed with the protrusion Part of the groove.
  • the free ends of the upper portion and the lower portion of the U-shaped body are respectively formed with a second side edge covering the first mounting plate and the second mounting plate The cladding of the second side edge.
  • the covering portion is formed as a buckling portion extending outward of the U-shaped body.
  • the number of the elastic protection members is at least two, and two of the elastic protection members are located at two ends of the first connecting plate, respectively.
  • the battery string includes a plurality of solar cells, and the solar cells are single-sided solar cells or double-sided solar cells.
  • the battery string includes a plurality of solar cells, and the solar cells are whole solar cells or sliced solar cells.
  • An embodiment of the present disclosure also provides another double-glass photovoltaic module, including a laminate and first and second frames respectively disposed on long sides of the laminate.
  • the first frame and the second frame are distributed axisymmetrically with the longitudinal centerline of the laminate as the axis of symmetry.
  • the upper end of the first frame and the upper end of the second frame are flush with the upper short side of the laminate.
  • the length of the first frame and the second frame account for more than 50% of the length of the laminate.
  • Embodiments of the present disclosure provide a double-framed double-glass photovoltaic module, which is only provided with a frame on the long sides of both sides of the laminate.
  • the module When installing the double-glass photovoltaic module, the module is installed in the longitudinal direction through the frame on the long sides of the two sides On the support, and the bent edge of the bus bar in the double-glass photovoltaic module does not contact the edge of the through-hole of the back plate glass, so that the double-glass photovoltaic module can meet the load capacity requirements without the lateral support on the back And, because there is no frame on the lower side, it will not block the light on the ground from illuminating the back of the module, which will not affect the power generation of the back of the double glass photovoltaic module.
  • the double glass photovoltaic module provided by the embodiments of the present disclosure does not have a frame on the lower side, it is not easy to accumulate ash and snow, and reduces the risk of hot spots due to the ash and snow.
  • adopting the "double frame" design provided by the embodiments of the present disclosure can also reduce the weight of the double glass photovoltaic module and reduce the cost of the double glass photovoltaic module.
  • Figure 1 is a schematic diagram of the installation method of the existing single-sided double-glass assembly using a segmented frame
  • Figure 2 is a schematic diagram of the installation method of the existing double-sided double-glass assembly using a segmented frame
  • Figure 3 is a schematic diagram of the installation method of the existing double-sided double-glass assembly with a frame on all sides;
  • FIG. 4 is a schematic diagram of the light path of the ground light in the installation method shown in FIG. 3;
  • FIG. 5 is a schematic structural diagram of a double-glass photovoltaic module provided by an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of the positional relationship between the bent edge of the bus bar and the edge of the through hole of the back plate in the double glass photovoltaic module provided by the embodiment of the present disclosure
  • FIG. 8 is a schematic diagram of the ground light optical path after the installation of the double glass photovoltaic module provided by an embodiment of the present disclosure
  • FIG. 9 is a schematic diagram of an optional frame structure in a double-glass photovoltaic module provided by an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural view of an elastic protection member in a double-glass photovoltaic module provided by an embodiment of the present disclosure
  • the laminate 1 includes a cover glass, a first encapsulating film, a battery string, a second encapsulating film, a back glass, and a bus bar; the back glass is provided with a through hole 13.
  • the cover glass, the first encapsulating film, the battery string, the second encapsulating film and the back glass are stacked in this order.
  • One end of the bus bar 12 is connected to the battery string, and the other end of the bus bar 12 passes through the through hole 13 and is bent After the bent edge 121 is formed, it is connected to the junction box 3.
  • the double glass photovoltaic module is installed on the vertical support through the first frame 21 and the second frame 22, so that the double glass photovoltaic module is inclinedly arranged.
  • the short side of one side of the laminate 1 is upward (away from the ground), and the short side of the other side of the laminate 1 is downward (near the ground).
  • the double-glass photovoltaic module provided by the embodiment of the present disclosure, since no frame is provided on the lower side, light on the ground will not be blocked from irradiating the back of the module, so that the power generation amount on the back of the double-glass photovoltaic module will not be affected.
  • the bent edge 121 of the bus bar 12 is in direct contact with the edge 131 of the through-hole of the backplane glass, so that it is easy for the double-glass module to damage the through-hole of the backplane glass when subjected to a load The strength of the glass caused the back panel to burst.
  • the bent edge 121 of the bus bar 12 does not contact with the through-hole edge 131 of the back glass, so that the double glass photovoltaic module provided by the embodiment of the present disclosure is provided with a frame on only the long sides of both sides, and Without the horizontal bracket on the back, it can still pass the three-cycle 5400Pa/2400Pa load test to meet the requirements of the IEC standard.
  • the double glass photovoltaic module provided by the embodiments of the present disclosure does not have a frame on the lower side, it is not easy to accumulate ash and snow, and reduces the risk of hot spots due to the ash and snow.
  • the "double frame" design can also reduce the weight of double glass photovoltaic modules and reduce the cost of double glass photovoltaic modules.
  • the distance between the bent edge 121 of the bus bar 12 and the edge 131 of the through hole may be more than 0.1 mm, such as 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, etc., and may further be 1 mm Above, for example 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc. It should be noted that, as shown in FIG.
  • the double-glass photovoltaic module there are usually two bus bars 12 passing through and bending through the through holes 13, which makes the bending edge 121 of the design bus bar 12 and
  • the distance between the bent edges 121 of the two bus bars 12 is greater than zero, that is, the bent edges 121 of the two bus bars 12 should not be in contact.
  • the through-hole 13 of the back glass is generally circular, the edge 131 of the through-hole is arc-shaped, and the bent edge 121 of the bus bar 12 is generally linear, then the bus The distance between the bent edge 121 of the bar 12 and the edge 131 of the through hole is not equal everywhere.
  • the bent edge 121 of the bus bar 12 and the edge 131 of the through hole The distance refers to the minimum distance between them (the distance indicated by the reference symbol d in FIG. 6).
  • first frame 21 and the second frame 22 may be distributed axisymmetrically with the longitudinal centerline of the laminate 1 as the axis of symmetry, that is, the upper and lower ends of the first frame 21 and the second frame 22 are flush .
  • first frame 21 and the second frame 22 may not be distributed axisymmetrically about the longitudinal centerline of the laminate 1 as the axis of symmetry.
  • both ends of the first frame 21 and both ends of the second frame 22 are spaced from the short sides of the laminate 1.
  • the first frame 21 may have a distance only between the upper end (or lower end) and the upper side (or lower side) of the laminate 1.
  • the second frame 22 may have a distance only between the upper end (or lower end) and the upper side (or lower side) of the laminate 1.
  • the first frame 21 may be distributed axisymmetrically with the lateral centerline of the laminate 1 as the axis of symmetry
  • the second frame 22 may also be distributed axisymmetrically with the lateral centerline of the laminate 1 as the axis of symmetry .
  • the length of the first frame 21 and the length of the second frame 22 may be equal or different.
  • the ratio of the length of the first frame 21 and the second frame 22 to the length of the long side of the laminate 1 may be more than 50%, for example, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 100%, etc.
  • the lengths of the first frame 21 and the second frame 22 can be adjusted adaptively.
  • the ratio of the length of the first frame 21 and the second frame 22 to the length of the long side of the laminate 1 may be more than 50% (for example, 50%, 55%, 60%, 65% , 70%, 75%, 80%, 85%, 90%, 95%, 100%, etc.); for the 72-plate version of the assembly, the length of the first frame 21 and the second frame 22 account for the long side of the laminate 1
  • the length ratio may be 60% or more (for example, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 100%, etc.).
  • the first frame 21 and the second frame 22 may adopt a frame structure as shown in FIG. 9.
  • the frame includes a first mounting plate a1, a second mounting plate a2, and a connecting plate a4, the first mounting plate a1 and the second mounting plate a2 are oppositely arranged, and the first side and the second mounting of the first mounting plate a1
  • the first sides of the board a2 are respectively connected to the connection board a4;
  • the laminate 1 is provided between the first mounting plate a1 and the second mounting plate a2, and is fixed to the first mounting plate a1 and the second mounting plate a2 by an adhesive.
  • the frame may further include a third mounting plate a3, which is opposite to the second mounting plate a2, and the second mounting plate a2 is located between the first mounting plate a1 and the third mounting plate a3 , And the first side of the third mounting plate a3 is also connected to the connection plate a4.
  • the first mounting plate a1, the second mounting plate a2, and the third mounting plate a3 are substantially parallel, and the connecting plate a4 is perpendicular to the first mounting plate a1, the second mounting plate a2, and the third mounting plate a3.
  • the third mounting plate a3 is used for the installation of the double glass photovoltaic module and the bracket.
  • the first mounting plate a1, the second mounting plate a2, and the third mounting plate a3 are substantially rectangular.
  • the first mounting plate a1 (the second mounting plate a2, the third mounting The two sides of the plate a3) in the width direction are called the two sides of the first mounting plate a1 (second mounting plate a2, third mounting plate a3), and the first mounting plate a1 (second mounting plate a2, third mounting plate a3) Both sides in the longitudinal direction are called both ends of the first mounting plate a1 (second mounting plate a2, third mounting plate a3).
  • the double glass photovoltaic module provided by the embodiment of the present disclosure can be installed on the bracket in the manner shown in FIG. 7, specifically, between two adjacent double glass photovoltaic modules are fixed by an intermediate clamp 4 and a vertical bracket 3 ′ at the most
  • the outer side of the outer double glass photovoltaic module is fixed to the longitudinal bracket 3'by an edge clamp 5.
  • the middle clamp 4 (edge clamp 5) presses the frame of the double glass photovoltaic module against the vertical bracket 3'
  • the middle clamp 4 (edge clamp 5) and the vertical bracket 3' are also correspondingly provided with mounting holes through which bolts pass
  • the mounting hole fixes the intermediate clamp 4 (edge clamp 5) and the vertical bracket 3', thereby fixing the double glass photovoltaic module and the vertical bracket 3'.
  • the double glass photovoltaic module provided by the embodiment of the present disclosure may also be installed with the bracket in the manner shown in FIG. 11.
  • a mounting hole a31 is provided on the third mounting plate a3 of the frame, and as shown in FIG. 11, the bolt passes through the mounting hole a31 on the third mounting plate a3 and the longitudinal bracket 3 ′
  • the installation hole directly fixes the double glass photovoltaic module and the vertical support 3'.
  • the adhesive that fixes the laminate 1 to the first mounting plate a1 and the second mounting plate a2 may be a sealant such as silica gel.
  • the elastic protection member X does not cover all the first mounting plate a1 and the second mounting plate a2, that is, only the laminate A part of 1 is located between the upper part X11 and the lower part X12 of the elastic protector X, and the part of the laminate 1 outside the elastic protector X is fixed to the first connection plate a1 and the second connection plate a2 by an adhesive, the laminate 1 and the elastic protection member X may not be fixed.
  • the elastic protection member X there is a certain gap between the edge of the laminate 1 and the first mounting plate a1, the second mounting plate a2, and the connecting plate a4, so that when the double glass photovoltaic module is subjected to When the load is applied, the glass of the double glass module has a certain moving space.
  • the glass of the double glass photovoltaic module is not easy to be crushed, thereby further improving the load capacity of the double-frame photovoltaic module of the embodiment of the present disclosure .
  • the free ends of the upper portion X11 and the lower portion 112 of the U-shaped body 11 are respectively formed with a covering portion X14 to respectively cover the second side edge of the first mounting plate a1 and the second side edge of the second mounting plate a2 .
  • the setting of the cladding portion X14 facilitates the edge of the laminate 1 to be placed between the first mounting plate a1 and the second mounting plate a2, and prevents the edge of the laminate 1 from being placed between the first mounting plate a1 and the second mounting During the process between the plates a2, the upper part X11 and the lower part X12 of the elastic protector X shrink back and wrinkle.
  • the covering portion X14 is formed as a buckling portion extending outward of the U-shaped body X1, and the buckling portions are respectively engaged with the second side edge of the first mounting plate a1 and the second side edge of the second mounting plate a2.
  • the number of the elastic protection members X is at least two, and two of the elastic protection members X are respectively located at both ends of the first connecting plate a1.
  • the first connection plate a1 that is, the second connection plate a2
  • the two ends of the frame 22 overflow, which ensures the cleanliness of the preparation process of the double glass photovoltaic module provided by the embodiment of the present disclosure, and also ensures the reliability of the bonding between the laminate 1 and the frame.
  • the elastic protection member X may be a rubber member, a silicone member, a thermoplastic member, or other elastic members.
  • the junction box 3 is disposed near the short side of the laminate 1, for example, a whole solar cell photovoltaic module. It should be noted that during installation of this type of double glass photovoltaic module, the short side of the side close to the junction box 3 is upward, away from the ground.
  • the solar cells 11 may also be arranged in a “tiling” manner, that is, the edges of adjacent solar cells in the same string of cells overlap.
  • the junction box is provided on the back of the laminate 1 and on the long side of the side close to the laminate 1.
  • first frame 21 and the second frame 22 are distributed axisymmetrically with the longitudinal centerline of the laminate 1 as the axis of symmetry.
  • the first frame 21 is distributed axisymmetrically with the lateral centerline of the laminate 1 as the axis of symmetry
  • the second frame 22 is distributed axisymmetrically with the lateral centerline of the laminate 1 as the axis of symmetry.

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Abstract

本公开涉及一种双玻光伏组件，属于光伏技术领域。该双玻光伏组件包括层压件、接线盒以及仅设置在层压件两侧长边的第一边框和第二边框；层压件包括盖板玻璃、第一封装胶膜、电池串、第二封装胶膜和背板玻璃及汇流条；背板玻璃上设置有通孔；汇流条的一端与电池串连接，汇流条的另一端穿过通孔并折弯形成折弯边后与接线盒连接；汇流条的折弯边不与通孔的边缘接触。该双玻光伏组件采用双边框设计，不仅能够满足载荷能力要求，而且由于安装至光伏发电系统后组件下侧边没有边框遮挡地面的光照射到组件背面，从而不会影响双玻光伏组件的背面发电量，并且不易积灰、积雪，还能够减轻双玻光伏组件的重量，降低双玻光伏组件的成本。

Description

双玻光伏组件
本公开要求以下专利申请的优先权：
于2018年12月6日提交中国国家知识产权局、申请号为201811487725.2、发明名称为“一种双玻光伏组件”的中国专利申请，
于2019年3月15日提交中国国家知识产权局，申请号为201910199346.1、发明名称为“双玻光伏组件”的中国专利申请，
于2019年5月7日提交中国国家知识产权局，申请号为201920641985.4、发明名称为“光伏组件边框用弹性保护件、光伏组件边框以及光伏组件”的中国专利申请，
其全部内容通过引用结合在本公开中。
技术领域
本公开涉及光伏技术领域，具体涉及一种双玻光伏组件。
背景技术
双玻光伏组件即双面玻璃封装的光伏组件，其层压件的盖板和背板均为玻璃板。按照双玻光伏组件中所用太阳能电池种类的不同，双玻组件可分为单面双玻光伏组件(太阳能电池为单面太阳能电池，仅组件正面可以发电)，及双面双玻光伏组件(太阳能电池为双面太阳电池，组件的正面和背面均可发电)。
在光伏发电系统中，单面双玻光伏组件通常采用如图1所示的安装方式。在层压件1的两侧长边上安装分段式边框2’，通过分段式边框2’将组件安装在支架上，其中，支架包括沿层压件1长边方向设置的纵向支架3’及沿层压件2短边方向设置的横向支架4’。
由于双面双玻组件正反两面均可发电，图1所示的安装方式中横向支架4’会影响背面光线入射，影响双玻组件背面发电量，因此，在光伏发电系统中，双面双玻组件通常采用以下的安装方式：
第一种方式：如图2所示，在层压件1的两侧长边上安装分段式边框2’，通过分段式边框2’将组件安装在纵向支架3’上，不设置横向支架4’，这种安装方式存在的问题是，双面双玻组件的载荷能力达不到5400Pa的IEC(International Electrotechnical Commission，国际电工委员会)标准要求。
第二种方式，如图3所示，在层压件1的四周安装边框2’，组件通过长边 上的边框安装在纵向支架上，组件背面同样没有横向支架遮挡。如图4所示，这种方式存在的问题是：由于组件通常与地面成倾斜设置，组件的下侧边框会阻挡地面的光照射到组件的背面，使其发电量降低；并且下侧边框还容易积灰、积雪，积灰、积雪部位会产生热斑，不但导致组件发电量降低，还会在一定程度上造成组件损坏。
公开内容
基于以上所述，本公开实施例提供了一种既能满足载荷能力要求，又不影响背面发电量的双玻光伏组件。
具体技术方案如下：
本公开实施例提供了一种双玻光伏组件，包括层压件、接线盒以及仅设置在所述层压件两侧长边的第一边框和第二边框；
所述层压件包括盖板玻璃、第一封装胶膜、电池串、第二封装胶膜、背板玻璃及汇流条；
所述背板玻璃上设置有通孔；
所述汇流条的一端与所述电池串连接，所述汇流条的另一端穿过所述通孔并折弯形成折弯边后与所述接线盒连接；
所述汇流条的折弯边不与所述通孔的边缘接触。
在一种可选的实施方式中，所述第一边框和所述第二边框以所述层压件的纵向中心线为对称轴呈轴对称分布。
在另一种可选的实施方式中，所述汇流条的折弯边与所述通孔的边缘之间的距离为0.1毫米以上。
在另一种可选的实施方式中，所述汇流条的折弯边与所述通孔的边缘之间的距离为1毫米以上。
在另一种可选的实施方式中，所述第一边框的两端和所述第二边框的两端与所述层压件的两侧短边之间均留有距离。
在另一种可选的实施方式中，所述第一边框以所述层压件的横向中心线为对称轴呈轴对称分布，和/或，所述第二边框以所述层压件的横向中心线为对称轴呈轴对称分布，
在另一种可选的实施方式中，所述第一边框的长度和所述第二边框的长度相 等。
在另一种可选的实施方式中，所述第一边框和所述第二边框的长度占所述层压件的长边长度的50％以上。
在另一种可选的实施方式中，所述第一边框和所述第二边框包括：第一安装板、第二安装板及连接板，所述第一安装板和所述第二安装板相对设置，且所述第一安装板的第一侧和所述第二安装板的第一侧分别与所述连接板连接；
所述层压件设置在所述第一安装板和第二安装板之间，并通过粘接剂与所述第一安装板和第二安装板固定。
在另一种可选的实施方式中，所述第一安装板和所述第二安装板之间还设置有弹性保护件；所述弹性保护件形成为U形主体，所述U形主体包括：相对设置的上部和下部；以及连接所述上部和下部的连接部；所述上部、所述下部和所述连接部分别与所述第一连接板、第二连接板和所述连接板固定；所述层压件的一部分位于所述上部和所述下部之间，所述层压件位于弹性保护件以外的部分与所述第一连接板和所述第二连接板通过所述粘接剂固定。
在另一种可选的实施方式中，所述U形主体的上部的上方形成有凸起部；所述第一安装板与所述第二安装板相对的表面上形成有与所述凸起部相适配的凹槽。
在另一种可选的实施方式中，所述U形主体的所述上部和所述下部的自由端分别形成有包覆所述第一安装板的第二侧边缘和所述第二安装板的第二侧边缘的包覆部。
在另一种可选的实施方式中，所述包覆部形成为向所述U形主体外侧延伸的卡扣部。
在另一种可选的实施方式中，所述弹性保护件的数量为至少两个，且其中两个所述弹性保护件分别位于所述第一连接板的两端。
在另一种可选的实施方式中，所述电池串包括多个太阳能电池片，所述太阳能电池片为单面太阳能电池片或者双面太阳能电池片。
在另一种可选的实施方式中，所述电池串包括多个太阳能电池片，所述太阳能电池片为整片太阳能电池片或者切片太阳能电池片。
本公开实施例还提供了另一种双玻光伏组件，包括层压件和分别设置在所述 层压件两侧长边上的第一边框和第二边框。
在所述第一边框和所述第二边框以所述层压件的纵向中心线为对称轴呈轴对称分布。
在一种可选的实施方式中，所述第一边框的上端、所述第二边框的上端与所述层压件的上侧短边平齐。
在另一种可选的实施方式中，所述第一边框的两端、所述第二边框的两端与所述层压件的两侧短边之间均留有距离。
在另一种可选的实施方式中，所述第一边框以所述层压件的横向中心线为对称轴呈轴对称分布，所述第二边框以所述层压件的横向中心线为对称轴呈轴对称分布。
在另一种可选的实施方式中，所述第一边框、第二边框的长度占所述层压件长度的50％以上。
本公开实施例提供的技术方案的有益效果至少包括：
本公开实施例提供了一种双边框双玻光伏组件，仅在层压件的两侧长边上设置边框，在安装双玻光伏组件时，通过两侧长边上的边框将组件安装在纵向支架上，并且，该双玻光伏组件中汇流条的折弯边不与背板玻璃通孔的边缘接触，如此，该双玻光伏组件在背面不设置横向支架的情况下也能够满足载荷能力要求，而且由于下侧边没有边框，不会遮挡地面的光照射到组件背面，从而不会影响双玻光伏组件的背面发电量。并且，由于本公开实施例提供的双玻光伏组件的下侧边没有边框，因此不易积灰、积雪，降低了因积灰、积雪产生热斑的风险。此外，采用本公开实施例提供的“双边框”设计还能够减轻双玻光伏组件的重量，降低双玻光伏组件的成本。
附图说明
图1为现有采用分段式边框的单面双玻组件的安装方式示意图；
图2为现有采用分段式边框的双面双玻组件的安装方式示意图；
图3为现有四周均设置边框的双面双玻组件的安装方式示意图；
图4为图3所示的安装方式中地面光线光路示意图；
图5为本公开实施例提供的双玻光伏组件的结构示意图；
图6为本公开实施例提供的双玻光伏组件中汇流条折弯边与背板通孔边缘 之间的位置关系示意图；
图7为本公开实施例提供的双玻光伏组件的安装方式示意图；
图8为本公开实施例提供的双玻光伏组件安装后地面光线光路示意图；
图9为本公开实施例提供的双玻光伏组件中一种可选的边框结构示意图；
图10为本公开实施例提供的双玻光伏组件中弹性保护件的结构示意图；
图11为本公开实施例提供的双玻光伏组件的安装方式示意图。
图中附图标记分别表示：
1-层压件，11-太阳能电池片，12-汇流条，121-折弯边，13-通孔，
131-通孔的边缘，21-第一边框，22-第二边框，3-接线盒，4-中间夹具，
5-边缘夹具，a1-第一安装板，a2-第二安装板，a3-第三安装板，
a31-安装孔，a4-连接板，X-弹性保护件，X1-U形主体，X11-上部，
X12-下部，X13-连接部，X14-包覆部，X2-凸起部，
2’-现有双玻光伏组件的边框，
3’-纵向支架，
4’-横向支架。
具体实施方式
本公开实施例提供了一种双边框双玻光伏组件，图5示出了本公开实施例提供的双玻光伏组件的结构，如图5所示，该双玻光伏组件包括：层压件1、接线盒以及仅设置在层压件1两侧长边的第一边框21和第二边框22。本公开实施例中，层压件1的两侧短边不设置边框。
其中，层压件1包括盖板玻璃、第一封装胶膜、电池串、第二封装胶膜、背板玻璃及汇流条；背板玻璃上设置有通孔13。
盖板玻璃、第一封装胶膜、电池串、第二封装胶膜及背板玻璃依次层叠设置，汇流条12的一端与电池串连接，汇流条12的另一端穿过通孔13并折弯形成折弯边121后与接线盒3连接。
如图6所示，汇流条12的折弯边121不与通孔13的边缘接触。
如图7所示，本公开实施例提供的双玻光伏组件在安装时，通过第一边框21和第二边框22将双玻光伏组件安装在纵向支架上，使双玻光伏组件呈倾斜设置，层压件1的一侧短边向上(远离地面)，层压件1的另一侧短边向下(靠近 地面)。双玻光伏组件背面不设置横向支架。
本公开实施例中，层压件1基本呈长方形，为了便于描述，将双玻光伏组件安装后，层压件1向上的一侧短边称为上侧边，向下的一侧短边称为下侧边；将第一边框21、第二边框22向上的一端称为上端，向下的一端称为下端，并且，本公开实施例中，“纵向”是指与层压件1长边平行的方向，“横向”是指与层压件1短边平行的方向。
本公开实施例提供的双玻光伏组件中，由于下侧边没有设置边框，因此不会遮挡地面的光照射到组件背面，从而不会影响双玻光伏组件的背面发电量。
同时，本公开实施例提供的双玻光伏组件中，汇流条12的折弯边121不与背板玻璃通孔的边缘131接触，即汇流条12的折弯边121与背板玻璃通孔的边缘131之间的距离大于零。
如图6所示，本公开实施例中，汇流条12的折弯边121是指汇流条12折弯的部位，在层压件1中，汇流条12的一部分位于背板玻璃内侧，另一部分位于背板玻璃的外侧，折弯边则是连接这两部分的部位。
目前现有的双玻光伏组件中，汇流条12的折弯边121与背板玻璃通孔的边缘131是直接接触的，这样就容易使双玻组件在受到载荷作用时破坏背板玻璃通孔的强度，造成背板玻璃爆裂。
而本公开实施例中，汇流条12的折弯边121不与背板玻璃的通孔边缘131接触，从而使本公开实施例提供的双玻光伏组件在仅有两侧长边设置边框，且背面没有横向支架的的情况下仍能够通过三个循环5400Pa/2400Pa的载荷测试，满足IEC标准要求。
此外，由于本公开实施例提供的双玻光伏组件的下侧边没有设置边框，因此不易积灰、积雪，降低了因积灰、积雪产生热斑的风险。“双边框”的设计还能够减轻双玻光伏组件的重量，降低双玻光伏组件的成本。
本公开实施例中，汇流条12的折弯边121与通孔的边缘131之间的距离可以为0.1毫米以上，例如0.2毫米、0.3毫米、0.4毫米、0.5毫米等，进一步地可以为1毫米以上，例如1.5毫米、2毫米、2.5毫米、3毫米、3.5毫米、4毫米、4.5毫米、5毫米等。需要说明的是，如图6所示，双玻光伏组件中，通常会有两个汇流条12从通孔13中穿过并折弯，这就使得在设计汇流条12的折 弯边121与通孔的边缘131之间的距离时需要注意，两个汇流条12的折弯边121之间的距离要大于零，即两个汇流条12的折弯边121之间不要接触。
还需要说明的是，双玻光伏组件中，背板玻璃的通孔13通常呈圆形，通孔的边缘131呈圆弧形，而汇流条12的折弯边121通常呈直线形，则汇流条12的折弯边121与通孔的边缘131之间的距离不是处处相等的，对于这种情况，本公开实施例中，汇流条12的折弯边121与通孔的边缘131之间的距离是指二者之间的最小距离(如图6中附图标记d所指示的距离)。
本公开实施例中，第一边框21和第二边框22可以以层压件1的纵向中心线为对称轴呈轴对称分布，即第一边框21和第二边框22的上端和下端分别平齐。
当然，第一边框21和第二边框22也可不以层压件1的纵向中心线为对称轴呈轴对称分布。
本公开实施例中，第一边框21的两端和第二边框22的两端与层压件1的两侧短边之间均留有距离。
第一边框21也可以仅上端(或下端)与层压件1的上侧边(或下侧边)之间留有距离。第二边框22也可以仅上端(或下端)与层压件1的上侧边(或下侧边)之间留有距离。
本公开实施例中，第一边框21可以以层压件1的横向中心线为对称轴呈轴对称分布，第二边框22也可以以层压件1的横向中心线为对称轴呈轴对称分布。
第一边框21的长度和第二边框22的长度可以相等，也可以不相等。
本公开实施例中，第一边框21和第二边框22的长度占层压件1的长边长度的比例可以为50％以上，例如50％、55％、60％、65％、70％、75％、80％、85％、90％、95％、100％等。对于不同版型组件来说，第一边框21和第二边框22的长度可以做适应性调整。例如，对于60片版型组件，第一边框21和第二边框22的长度占层压件1的长边长度的比例为可以为50％以上(例如50％、55％、60％、65％、70％、75％、80％、85％、90％、95％、100％等)；对于72片版型组件，第一边框21和第二边框22的长度占层压件1的长边长度的比例为可以为60％以上(例如60％、65％、70％、75％、80％、85％、90％、95％、100％等)。
本公开实施例中，第一边框21、第二边框22可以采用如图9所示的边框结构。具体来说，边框包括第一安装板a1、第二安装板a2及连接板a4，第一安装 板a1和第二安装板a2相对设置，且第一安装板a1的第一侧和第二安装板a2的第一侧分别与连接板a4连接；
层压件1设置在第一安装板a1和第二安装板a2之间，并通过粘接剂与第一安装板a1和第二安装板a2固定。
如图9所示，边框还可以包括第三安装板a3，第三安装板a3与第二安装板a2相对设置，且第二安装板a2位于第一安装板a1和第三安装板a3之间，并且第三安装板a3的第一侧也与连接板a4连接。在可能的实现方式中，第一安装板a1、第二安装板a2和第三安装板a3基本平行，连接板a4与第一安装板a1、第二安装板a2、第三安装板a3垂直。第三安装板a3用于双玻光伏组件与支架的安装。
一般来说，第一安装板a1、第二安装板a2和第三安装板a3基本呈长方形，本公开实施例中为了便于描述，将第一安装板a1(第二安装板a2、第三安装板a3)宽度方向的两侧边称为第一安装板a1(第二安装板a2、第三安装板a3)的两侧，将第一安装板a1(第二安装板a2、第三安装板a3)长度方向的两侧边称为第一安装板a1(第二安装板a2、第三安装板a3)的两端。
本公开实施例提供的双玻光伏组件可以采用如图7所示的方式与支架安装，具体来说，相邻两个双玻光伏组件之间通过中间夹具4与纵向支架3’固定，位于最外侧的双玻光伏组件的外侧边通过边缘夹具5与纵向支架3’固定。其中，中间夹具4(边缘夹具5)将双玻光伏组件的边框压在纵向支架3’上，并且中间夹具4(边缘夹具5)和纵向支架3’上还对应设置有安装孔，螺栓穿过安装孔将中间夹具4(边缘夹具5)与纵向支架3’固定，从而将双玻光伏组件与纵向支架3’固定。
或者，本公开实施例提供的双玻光伏组件还可以采用如图11所示的方式与支架安装。具体来说，如图9所示，在边框的第三安装板a3上设置安装孔a31，如图11所示，螺栓穿过第三安装板a3上的安装孔a31和纵向支架3’上的安装孔，直接将双玻光伏组件与纵向支架3’固定。
本公开实施例中，将层压件1与第一安装板a1、第二安装板a2固定的粘接剂可以为硅胶等密封胶。
如图9所示，本公开实施例提供的双玻光伏组件中，可以在第一边框21、 第二边框22的第一安装板a1和第二安装板a2之间设置弹性保护件X。如图10所示，弹性保护件X形成为U形主体X1，U形主体X1包括：相对设置的上部X11和下部X12；以及连接上部X11和下部X12的连接部X13；上部X11、下部X12和连接部X13分别与第一连接板a1、第二连接板a2和连接板a4固定。
本公开实施例中，在沿第一安装板a1、第二安装板a2的长度方向上，弹性保护件X并未覆盖全部的第一安装板a1、第二安装板a2，即仅层压件1的一部分位于弹性保护件X的上部X11和下部X12之间，层压件1位于弹性保护件X以外的部分与第一连接板a1和第二连接板a2通过粘接剂固定，层压件1与弹性保护件X之间可以不固定。可以理解的是，通过设置弹性保护件X，层压件1的边缘与第一安装板a1、第二安装板a2及连接板a4之间均具有一定的间隙，如此，当双玻光伏组件受到载荷作用时，双玻组件的玻璃有一定的活动空间，在加之弹性保护件的缓冲作用，双玻光伏组件的玻璃不容易被挤破，从而进一步提升本公开实施例双边框光伏组件的载荷能力。
本公开实施例中，弹性保护件10可通过粘结剂(例如硅胶)与第一安装板a1、第二安装板a2及连接板a4固定，也可通过机械连接结构与第一安装板a1、第二安装板a2及连接板a4固定。
可选地，如图10所示，U形主体X1的上部X11的上方还形成有凸起部X2；第一安装板a1与第二安装板a2相对的表面上形成有与凸起部X2相适配的凹槽，凸起部X2卡入第一安装板a1的凹槽内。
可选地，U形主体11的上部X11和下部112的自由端分别形成有包覆部X14，以分别包覆第一安装板a1的第二侧边缘和第二安装板a2的第二侧边缘。包覆部X14的设置易于层压件1的边缘置于第一安装板a1和第二安装板a2之间，并且可防止将层压件1的边缘置于第一安装板a1和第二安装板a2之间的过程中，弹性保护件X的上部X11和下部X12后缩起皱。作为优选，包覆部X14形成为向U形主体X1外侧延伸的卡扣部，卡扣部分别卡合在第一安装板a1的第二侧边缘和第二安装板a2的第二侧边缘。
在本公开实施例可能的实现方式中，弹性保护件X的数量为至少两个，且其中两个弹性保护件X分别位于第一连接板a1的两端。通过在第一连接板a1(也即第二连接板a2)的两端分别设置弹性保护件X，可以防止用于粘接层压件1和 边框的粘接剂从第一边框21、第二边框22的两端溢出，保证了本公开实施例提供的双玻光伏组件制备过程的清洁，也保证了层压件1与边框之间的粘接可靠性。
对于设置在两端的弹性保护件X之间的弹性保护件X的数量，本公开实施例没有严格限制，可以根据第一边框21、第二边框22的长度来确定。
本公开实施例中，弹性保护件X可以为橡胶制件、硅胶制件、热塑胶制件或者其他弹性制件。
进一步地，双玻光伏组件中通常包括多串电池串，每串电池串包括多个太阳能电池片11，多个太阳能电池片11通过互连条连接，汇流条12则通过与互连条连接来收集电池串的电流。
太阳能电池片11可以为单面太阳能电池片或者双面太阳能电池片，也就是说本公开实施例提供的双玻光伏组件结构不仅适用于双面双玻光伏组件，对于单面双玻光伏组件同样适用。
太阳能电池片11可以为整片太阳能电池片也可以为切片太阳能电池片。整片太阳能电池片是指呈正方形或者切角正方形的电池片，切片太阳能电池片是对整片太阳能电池片进行切割得到，形状可以呈长方形，切割比例可以是二分之一、三分之一、四分之一、五分之一等。上文中提到的60片版型组件和72片版型组件中60片、72片即是指整片太阳能电池片的数量。
本公开实施例中，接线盒3的位置可根据组件版型确定。
对于一些版型的组件来说，接线盒3靠近层压件1的一侧短边设置，例如整片太阳能电池片光伏组件。需要说明的是，该类型双玻光伏组件在安装时，靠近接线盒3的一侧短边向上，远离地面。
对于一些版型的组件来说，接线盒3设置在层压件1长度方向的中间位置，例如半片(二分之一切片)太阳能电池片光伏组件。
可以理解的是，背板玻璃上的通孔13的位置与接线盒3的位置相对应。
本公开实施例提供的双玻光伏组件中，太阳能电池片11之间还可通过“叠瓦”方式排列，即同一串电池串中相邻太阳能电池片的边缘重叠。对于采用“叠瓦”方式排列的双玻光伏组件来说，接线盒设置在层压件1背面且靠近层压件1的一侧长边。
本公开实施例还提供了另一种双玻光伏组件，包括层压件1和分别设置在层 压件1两侧长边上的第一边框21和第二边框22。
可选地，第一边框21和第二边框22以层压件1的纵向中心线为对称轴呈轴对称分布。
可选地，第一边框21的上端、第二边框22的上端与层压件1的上侧短边平齐。
可选地，第一边框21的两端、第二边框22的两端与层压件1的两侧短边之间均留有距离。
可选地，第一边框21以层压件1的横向中心线为对称轴呈轴对称分布，第二边框22以层压件1的横向中心线为对称轴呈轴对称分布。
上述实施例为本公开较佳的实施方式，但本公开的实施方式并不受上述实施例的限制，其他的任何未背离本公开的精神实质与原理下所作的改变、修饰、替代、组合、简化，均应为等效的置换方式，都包含在本公开的保护范围。

Claims (22)

  1. 一种双玻光伏组件，其特征在于，包括层压件(1)、接线盒(3)以及仅设置在所述层压件(1)两侧长边的第一边框(21)和第二边框(22)；
    所述层压件(1)包括盖板玻璃、第一封装胶膜、电池串、第二封装胶膜、背板玻璃及汇流条(12)；
    所述背板玻璃上设置有通孔(13)；
    所述汇流条(12)的一端与所述电池串连接，所述汇流条的另一端穿过所述通孔(13)并折弯形成折弯边(121)后与所述接线盒(3)连接；
    所述汇流条(12)的折弯边(121)不与所述通孔的边缘(131)接触。
  2. 根据权利要求1所述的双玻光伏组件，其特征在于，所述汇流条(12)的折弯边(121)与所述通孔的边缘(131)之间的距离为0.1毫米以上。
  3. 根据权利要求2所述的双玻光伏组件，其特征在于，所述汇流条(12)的折弯边(121)与所述通孔的边缘(131)之间的距离为1毫米以上。
  4. 根据权利要求1所述的双玻光伏组件，其特征在于，所述第一边框(21)和所述第二边框(22)以所述层压件(1)的纵向中心线为对称轴呈轴对称分布。
  5. 根据权利要求1所述的双玻光伏组件，其特征在于，所述第一边框(21)的两端和所述第二边框(22)的两端与所述层压件(1)的两侧短边之间均留有距离。
  6. 根据权利要求3所述的双玻光伏组件，其特征在于，所述第一边框(21)以所述层压件(1)的横向中心线为对称轴呈轴对称分布，和/或，所述第二边框(22)以所述层压件(1)的横向中心线为对称轴呈轴对称分布。
  7. 根据权利要求1所述的双玻光伏组件，其特征在于，所述第一边框(21)的长度和所述第二边框(22)的长度相等。
  8. 根据权利要求1～7任一项所述的双玻光伏组件，其特征在于，所述第一边框(21)和所述第二边框(22)的长度占所述层压件(1)的长边长度的50％以上。
  9. 根据权利要求1～8任一项所述的双玻光伏组件，其特征在于，所述第一边框(21)和所述第二边框(22)包括：第一安装板(a1)、第二安装板(a2)及连接板(a4)，所述第一安装板(a1)和所述第二安装板(a2)相对设置，且 所述第一安装板(a1)的第一侧和所述第二安装板(a2)的第一侧分别与所述连接板(a4)连接；
    所述层压件(1)设置在所述第一安装板(a1)和第二安装板(a2)之间，并通过粘接剂与所述第一安装板(a1)和第二安装板(a2)固定。
  10. 根据权利要求9所述的双玻光伏组件，其特征在于，所述第一安装板(a1)和所述第二安装板(a2)之间还设置有弹性保护件(X)；
    所述弹性保护件(X)形成为U形主体(X1)，所述U形主体(X1)包括：
    相对设置的上部(X11)和下部(X12)；以及，
    连接所述上部(X11)和下部(X12)的连接部(X13)；
    所述上部(X11)、所述下部(X12)和所述连接部(X13)分别与所述第一连接板(a1)、第二连接板(a2)和所述连接板(a4)固定；
    所述层压件(1)的一部分位于所述上部(X11)和所述下部(X12)之间，所述层压件(1)位于弹性保护件(X)以外的部分与所述第一连接板(a1)和所述第二连接板(a2)通过所述粘接剂固定。
  11. 根据权利要求10所述的双玻光伏组件，其特征在于，所述U形主体(X1)的上部(X11)的上方形成有凸起部(X2)；
    所述第一安装板(a1)与所述第二安装板(a2)相对的表面上形成有与所述凸起部(X2)相适配的凹槽。
  12. 根据权利要求10所述的双玻光伏组件，其特征在于，所述U形主体(11)的所述上部(X11)和所述下部(X12)的自由端分别形成有包覆所述第一安装板(a1)的第二侧边缘和所述第二安装板(a2)的第二侧边缘的包覆部(X14)。
  13. 根据权利要求12所述的双玻光伏组件，其特征在于，所述包覆部(X14)形成为向所述U形主体(X1)外侧延伸的卡扣部。
  14. 根据权利要求10～13任一项所述的双玻光伏组件，其特征在于，所述弹性保护件(X)的数量为至少两个，且其中两个所述弹性保护件(X)分别位于所述第一连接板(a1)的两端。
  15. 根据权利要求1所述的双玻光伏组件，其特征在于，所述电池串包括多个太阳能电池片，所述太阳能电池片为单面太阳能电池片或者双面太阳能电池片。
  16. 根据权利要求1所述的双玻光伏组件，其特征在于，所述电池串包括多 个太阳能电池片，所述太阳能电池片为整片太阳能电池片或者切片太阳能电池片。
  17. 一种双玻光伏组件，包括层压件(1)和分别设置在所述层压件(1)两侧长边上的第一边框(21)和第二边框(22)。
  18. 根据权利要求17所述的双玻光伏组件，其特征在于：所述第一边框(21)和所述第二边框(22)以所述层压件(1)的纵向中心线为对称轴呈轴对称分布。
  19. 根据权利要求18所述的双玻光伏组件，其特征在于：所述第一边框(21)的上端、所述第二边框(22)的上端与所述层压件(1)的上侧短边平齐。
  20. 根据权利要求18所述的双玻光伏组件，其特征在于：所述第一边框(21)的两端、所述第二边框(22)的两端与所述层压件(1)的两侧短边之间均留有距离。
  21. 根据权利要求20所述的双玻光伏组件，其特征在于：所述第一边框(21)以所述层压件(1)的横向中心线为对称轴呈轴对称分布，所述第二边框(22)以所述层压件(1)的横向中心线为对称轴呈轴对称分布。
  22. 根据权利要求19～21任一项所述的双玻光伏组件，其特征在于：所述第一边框(21)、第二边框(22)的长度占所述层压件(1)长度的50％以上。
PCT/CN2019/093536 2018-12-06 2019-06-28 双玻光伏组件 Ceased WO2020113950A1 (zh)

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