CN111129167A - Novel single-glass photovoltaic module - Google Patents
Novel single-glass photovoltaic module Download PDFInfo
- Publication number
- CN111129167A CN111129167A CN201811288871.2A CN201811288871A CN111129167A CN 111129167 A CN111129167 A CN 111129167A CN 201811288871 A CN201811288871 A CN 201811288871A CN 111129167 A CN111129167 A CN 111129167A
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- China
- Prior art keywords
- photovoltaic module
- bus bar
- busbar
- outgoing line
- lead
- 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.)
- Pending
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- 239000011521 glass Substances 0.000 title claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 21
- 229910052782 aluminium Inorganic materials 0.000 claims description 21
- 239000004411 aluminium Substances 0.000 claims 3
- 125000006850 spacer group Chemical group 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 10
- 238000010248 power generation Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005336 cracking Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
-
- 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
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a novel single-glass photovoltaic assembly, wherein six bus bar outgoing lines are arranged at one end of the photovoltaic assembly and are sequentially arranged in a straight line, three bus bar junction boxes are arranged on the back surface of the photovoltaic assembly, a first bus bar outgoing line is adjacent to a second bus bar outgoing line, the first bus bar outgoing line and the second bus bar outgoing line penetrate out together and are connected with one bus bar junction box on the back surface of the photovoltaic assembly, a third bus bar outgoing line is adjacent to a fourth bus bar outgoing line, the third bus bar outgoing line and the fourth bus bar outgoing line penetrate out together and are connected with the other bus bar junction box on the back surface of the photovoltaic assembly, and a fifth bus bar outgoing line is adjacent to the sixth bus bar outgoing line, the fifth bus bar outgoing line and the sixth bus bar outgoing. In the invention, the bus bar outgoing lines are led out in a split mode, and the bus bar outgoing lines are not overlapped, so that the bus bar outgoing lines are not in contact with each other, the short circuit phenomenon is avoided, a spacer bar is not required to be arranged, and the spacer bar and the labor cost are saved.
Description
Technical Field
The invention relates to a solar photovoltaic module, in particular to a novel single-glass photovoltaic module.
Background
The design of the conventional solar photovoltaic module is that, as shown in fig. 1 to 4, an EPE layer or similar isolation material (an isolation bar 6) is added at one end of a bus bar outgoing line 2 of the photovoltaic module, the isolation bar 6 is arranged between the back surface of a solar cell 13 and the bus bar outgoing line 2 to prevent the bus bar and the solar cell 13 from short circuit and contact between the bus bar outgoing line 2 and the bus bar outgoing line 2, so that the isolation bar 6 is added because the conventional bus bar outgoing line 2 and the bus bar outgoing line 2 are led out in a superposition mode, and the purpose is to share one bus bar junction box. The problems with the addition of the spacer 6 are: 1) the interlayer delamination risk exists when the isolation material runs in the assembly for a long time; 2) the cost of the small isolating strips (material cost, material preparation cost and the cost of workers for installing small materials) is increased, and the comprehensive cost accounts for about 2 percent of the total cost of the assembly; 3) in the installation or lamination process of the small isolating bars, the shearing force of the bus bars and the batteries is arranged at the positions of the isolating bars, the hidden cracking risk exists in the battery pieces at the positions of the outgoing lines, and in the production and manufacturing process of the actual assembly, the hidden cracking of the batteries at the positions of the isolating bars accounts for more than 50% of the total hidden cracking bad proportion. In addition, the traditional assembly layout design battery centered layout is adopted, the assembly is installed on a project and is eroded by long-term rainwater, a layer of stain is formed at the short edge end (the end far away from the bus bar outgoing line) of the assembly, and the influence of the system power generation amount and the hot spot phenomenon of the assembly are caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a novel single-glass photovoltaic module which leads out lead-out wires of all bus bars in a split mode and does not need to adopt an isolating bar.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a novel single glass photovoltaic module, photovoltaic module one end is equipped with six busbar lead-out wires, six busbar lead-out wires become a sharp arrangement in proper order, the photovoltaic module back has three busbar terminal box, and first busbar lead-out wire is adjacent with second busbar lead-out wire, and the two wears out jointly and is connected with a busbar terminal box on photovoltaic module's the back, and third busbar lead-out wire is adjacent with fourth busbar lead-out wire, and the two wears out jointly and is connected with another busbar terminal box on photovoltaic module's the back, and fifth busbar lead-out wire is adjacent with sixth busbar lead-out wire, and the two wears out jointly and is connected with the third busbar terminal box on photovoltaic module's the back.
As a further improvement of the above technical solution, preferably, an aluminum frame is disposed around the photovoltaic module, and a distance L4 between one end of the photovoltaic module having the outgoing line and the aluminum frame is greater than a distance L3 between the other end of the photovoltaic module and the aluminum frame.
As a further improvement of the above technical solution, preferably, one end of the photovoltaic module, which is far away from the bus bar outgoing line, is attached to the aluminum frame.
As a further improvement of the above technical solution, preferably, the photovoltaic module includes a back plate, an upper EVA layer, a solar cell, a lower EVA layer, and glass, which are sequentially disposed from top to bottom, and the bus bar is connected to the solar cell.
As a further improvement of the above technical solution, preferably, the bus bar outgoing line is vertically led out from between the upper EVA layer and the back sheet, and is connected to the bus bar junction box on the back of the photovoltaic module.
As a further improvement of the above technical solution, it is preferable that a bypass diode is installed in each of the bus bar junction boxes.
Compared with the prior art, the invention has the advantages that:
(1) according to the novel single-glass photovoltaic assembly, the outgoing lines of the bus bars are led out in a split mode, and the outgoing lines of the bus bars are not overlapped, so that the bus bars are not in contact with each other, the short circuit phenomenon cannot occur, an isolating bar does not need to be arranged, the isolating bar and labor cost are saved, and the reliability risk caused by the use of the isolating bar is avoided; meanwhile, the three split bus bar junction boxes are adopted to replace the traditional centralized junction box, so that the heat of the junction box is reduced, and the cost of cables and bus bars is saved.
(2) According to the novel single-glass photovoltaic assembly, the distance L3 between one end of the photovoltaic assembly, provided with the outgoing line, and the aluminum frame is larger than the distance L4 between the other end of the photovoltaic assembly and the aluminum frame, so that the distance between the end of the outgoing line and the aluminum frame is increased, the photovoltaic assembly is integrally arranged in the opposite direction of the outgoing line, and therefore, the distance between a cell (a power generation unit) and the right-end aluminum frame is large; generally, when the photovoltaic module is used, the outlet wire end is arranged downwards, so that the shielding of rainwater stains and accumulation on a battery can be reduced, the power generation amount of the module is improved, and the influence of hot spots of the module is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a photovoltaic module of the prior art.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is a cross-sectional view of a bus bar terminal end of a photovoltaic module according to the prior art.
Fig. 4 is an enlarged view of fig. 3 at B.
Fig. 5 is a schematic structural view of a photovoltaic module of the present invention.
Fig. 6 is an enlarged view at C in fig. 5.
Fig. 7 is a cross-sectional view of the bus bar terminal end of the photovoltaic module of the present invention.
Fig. 8 is an enlarged view at D in fig. 7.
Fig. 9 is a schematic view of the installation of the photovoltaic module of the present invention.
The reference numerals in the figures denote:
1. a photovoltaic module; 11. a back plate; 12. an EVA layer is arranged; 13. a solar cell sheet; 14. a lower EVA layer; 15. glass; 2. a bus bar lead-out wire; 3. an aluminum frame; 6. and (4) a spacing strip.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples of the specification.
As shown in fig. 5 to 8, the novel single-glass photovoltaic module of this embodiment, photovoltaic module 1 one end is equipped with six bus bar outgoing lines 2, six bus bar outgoing lines 2 are arranged in a straight line in proper order, photovoltaic module 1 back has three bus bar terminal box (not shown in the figure), first bus bar outgoing line 2 is adjacent with second bus bar outgoing line 2, and the two wears out jointly and is connected with a bus bar terminal box on photovoltaic module 1's the back, third bus bar outgoing line 2 is adjacent with fourth bus bar outgoing line 2, the two wears out jointly and is connected with another bus bar terminal box on photovoltaic module 1's the back, fifth bus bar outgoing line 2 is adjacent with sixth bus bar outgoing line 2, the two wears out jointly and is connected with the third bus bar terminal box on photovoltaic module 1's the back. Three busbar junction boxes are also referred to as a three-part junction box.
The photovoltaic module 1 mainly comprises a back plate 11, an upper EVA layer 12, a solar cell piece 13, a lower EVA layer 14 and glass 15 which are sequentially arranged from top to bottom, and the bus bar outgoing line 2 is connected with the solar cell piece 13. The solar cell 13 has 6 strings of cells, each bus bar outgoing line 2 is arranged between every 2 strings (2 independent bus bar outgoing lines 2 are arranged every 2 strings, and 6 bus bar outgoing lines 2 are arranged in total), the bus bar outgoing lines 2 are vertically led out from the space between the upper EVA layer 12 and the back plate 11 and are connected with one junction box of the three-split junction box on the back of the photovoltaic module 1, a bypass diode is arranged in each bus bar junction box to reduce the influence of hot spots of the module, and meanwhile, the power generation of the photovoltaic module 1 is led out through the three split junction boxes. In the embodiment, the bus bar outgoing lines 2 are led out in a split mode, and the bus bar outgoing lines 2 are not overlapped, so that the bus bar outgoing lines 2 are not in contact with each other, and the short circuit phenomenon cannot occur, so that an isolating bar is not required to be arranged, the isolating bar and the labor cost are saved, and the reliability risk caused by the use of the isolating bar is avoided; meanwhile, the three split bus bar junction boxes are adopted to replace the traditional centralized junction box, so that the heat of the junction box is reduced, and the cost of cables and bus bars is saved.
In this embodiment, the aluminum frame 3 is disposed around the photovoltaic module 1, and a distance L3 between one end of the photovoltaic module 1 having the outgoing line and the aluminum frame 3 is greater than a distance L4 between the other end of the photovoltaic module and the aluminum frame 3, as shown in fig. 5. The distance between the lead-out wire end (right end) and the aluminum frame 3 is increased, the photovoltaic module 1 is integrally arranged in the opposite direction (left end) of the lead-out wire, and thus the distance between the solar cell 13 (power generation unit) and the right aluminum frame 3 is large; generally, when the photovoltaic module 1 is used, the outlet end is installed downwards (as shown in fig. 9), so that the shielding of rainwater stain accumulation on the battery can be reduced, the power generation amount of the module is improved, and the influence of hot spots of the module is reduced. As shown in fig. 1, in the prior art, the layout of the photovoltaic module 1 is designed as a centered layout, that is, the distances L1 and L2 between the photovoltaic module 1 and the aluminum frames 3 on both sides are equal, so that when the photovoltaic module 1 is in use, one end (right end) of the outgoing line is low, and the other end (left end) of the outgoing line is high, so that rainwater and dirt easily flow to one end of the outgoing line, and since L2 is small, the photovoltaic module 1 easily contacts with the rainwater and dirt, which affects the power generation effect and the module reliability.
In this embodiment, one end (right end) of the photovoltaic module 1 away from the bus bar outgoing line 2 is attached to the aluminum frame 3 as much as possible (L3 is zero), so as to ensure that the outgoing line end and the aluminum frame 3 have an increased distance (L4).
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (6)
1. The utility model provides a novel single glass photovoltaic module, photovoltaic module (1) one end is equipped with six busbar lead-out wires (2), its characterized in that: six busbar lead-out wires (2) become a straight line in proper order and arrange, photovoltaic module (1) back has three busbar terminal box, and first busbar lead-out wire (2) are adjacent with lead-out wire (2) of second busbar, and the two wears out jointly and is connected with a busbar terminal box on photovoltaic module (1)'s the back, and third busbar lead-out wire (2) are adjacent with fourth busbar lead-out wire (2), and the two wears out jointly and is connected with another busbar terminal box on photovoltaic module (1)'s the back, and fifth busbar lead-out wire (2) are adjacent with sixth busbar lead-out wire (2), and the two wears out jointly and is connected with the third busbar terminal box on photovoltaic module (1)'s the back.
2. The novel single-glass photovoltaic module of claim 1, wherein: photovoltaic module (1) is equipped with aluminium frame (3) all around, photovoltaic module (1) has the one end of busbar lead-out wire (2) and is greater than the distance L3 between the other end and aluminium frame (3) apart from L4 between aluminium frame (3).
3. The novel single-glass photovoltaic module of claim 2, wherein: one end, far away from the bus bar outgoing line (2), of the photovoltaic module (1) is attached to the aluminum frame (3).
4. The novel single-glass photovoltaic module according to any one of claims 1 to 3, characterized in that: photovoltaic module (1) includes from last backplate (11), last EVA layer (12), solar wafer (13), lower EVA layer (14) and glass (15) that set gradually extremely down, busbar lead-out wire (2) are connected with solar wafer (13).
5. The novel single-glass photovoltaic module according to any one of claims 1 to 3, characterized in that: the bus bar outgoing line (2) is vertically led out from the space between the upper EVA layer (12) and the back plate (11) and is connected with a bus bar junction box on the back of the photovoltaic module (1).
6. The novel single-glass photovoltaic module of claim 5, wherein: and a bypass diode is arranged in each bus bar junction box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288871.2A CN111129167A (en) | 2018-10-31 | 2018-10-31 | Novel single-glass photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288871.2A CN111129167A (en) | 2018-10-31 | 2018-10-31 | Novel single-glass photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111129167A true CN111129167A (en) | 2020-05-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811288871.2A Pending CN111129167A (en) | 2018-10-31 | 2018-10-31 | Novel single-glass photovoltaic module |
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| Country | Link |
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| CN (1) | CN111129167A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201655820U (en) * | 2010-04-20 | 2010-11-24 | 常州天合光能有限公司 | Circuit overlap structure of photovoltaic assembly |
| CN102709372A (en) * | 2012-06-13 | 2012-10-03 | 海南英利新能源有限公司 | Photovoltaic module |
| CN103050562A (en) * | 2012-12-07 | 2013-04-17 | 常州大学 | Material-saving and consumption-reducing photovoltaic component |
| CN103165701A (en) * | 2013-03-18 | 2013-06-19 | 中南大学 | Photovoltaic cell module |
| CN203085608U (en) * | 2013-02-17 | 2013-07-24 | 英利集团有限公司 | Solar battery assembly adopting novel bus bar lead-out mode |
| CN205039162U (en) * | 2015-10-08 | 2016-02-17 | 阿特斯(中国)投资有限公司 | Prevent deposition photovoltaic module |
| CN205609542U (en) * | 2016-04-17 | 2016-09-28 | 国家电网公司 | Can cushion sedimentary photovoltaic module of bottom dust |
| CN209708996U (en) * | 2019-06-18 | 2019-11-29 | 苏州携创新能源科技有限公司 | A kind of ultra dense arrangement photovoltaic module of heat resistanceheat resistant spot |
-
2018
- 2018-10-31 CN CN201811288871.2A patent/CN111129167A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201655820U (en) * | 2010-04-20 | 2010-11-24 | 常州天合光能有限公司 | Circuit overlap structure of photovoltaic assembly |
| CN102709372A (en) * | 2012-06-13 | 2012-10-03 | 海南英利新能源有限公司 | Photovoltaic module |
| CN103050562A (en) * | 2012-12-07 | 2013-04-17 | 常州大学 | Material-saving and consumption-reducing photovoltaic component |
| CN203085608U (en) * | 2013-02-17 | 2013-07-24 | 英利集团有限公司 | Solar battery assembly adopting novel bus bar lead-out mode |
| CN103165701A (en) * | 2013-03-18 | 2013-06-19 | 中南大学 | Photovoltaic cell module |
| CN205039162U (en) * | 2015-10-08 | 2016-02-17 | 阿特斯(中国)投资有限公司 | Prevent deposition photovoltaic module |
| CN205609542U (en) * | 2016-04-17 | 2016-09-28 | 国家电网公司 | Can cushion sedimentary photovoltaic module of bottom dust |
| CN209708996U (en) * | 2019-06-18 | 2019-11-29 | 苏州携创新能源科技有限公司 | A kind of ultra dense arrangement photovoltaic module of heat resistanceheat resistant spot |
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Application publication date: 20200508 |