WO2020113950A1 - 双玻光伏组件 - Google Patents
双玻光伏组件 Download PDFInfo
- 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
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- double
- laminate
- photovoltaic module
- glass photovoltaic
- Prior art date
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- 239000011521 glass Substances 0.000 title claims abstract description 120
- 239000005357 flat glass Substances 0.000 claims abstract description 6
- 230000001012 protector Effects 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 238000005253 cladding Methods 0.000 claims description 4
- 239000006059 cover glass Substances 0.000 claims description 4
- 238000010248 power generation Methods 0.000 abstract description 9
- 239000002313 adhesive film Substances 0.000 abstract 2
- 238000005538 encapsulation Methods 0.000 abstract 2
- 239000000428 dust Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000005611 electricity Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Classifications
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- 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
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
- H01L31/0201—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules comprising specially adapted module bus-bar structures
-
- 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
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
- H01L31/02013—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules comprising output lead wires elements
-
- 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
- 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
-
- 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
Description
Claims (22)
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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)。
- 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。
- 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。
- 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。
- 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。
- 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)。
- 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。
- 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。
- 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。
- 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。
- 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。
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CN115138537B (zh) * | 2022-07-01 | 2023-06-16 | 润达光伏盐城有限公司 | 一种单双玻光伏组件的边框加装设备 |
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CN115262818B (zh) * | 2022-07-27 | 2023-10-03 | 中建八局第一建设有限公司 | 一种层间防火太阳能光电幕墙 |
CN116180625A (zh) * | 2022-12-09 | 2023-05-30 | 中国科学院西北生态环境资源研究院 | 光伏防眩板组件、光伏发电系统及光伏路基系统 |
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