CN207542261U - A kind of half piece back contact battery photovoltaic solar double-glass assemblies - Google Patents
A kind of half piece back contact battery photovoltaic solar double-glass assemblies Download PDFInfo
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- CN207542261U CN207542261U CN201721789716.XU CN201721789716U CN207542261U CN 207542261 U CN207542261 U CN 207542261U CN 201721789716 U CN201721789716 U CN 201721789716U CN 207542261 U CN207542261 U CN 207542261U
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- 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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Abstract
The utility model discloses a kind of half piece back contact battery photovoltaic solar double-glass assemblies, including front be horizontally set on the second encapsulating material layer its set spaced multiple half piece back contact batteries, battery is arranged in m * n matrix, wherein n is even number, the half piece back contact battery of each row connects to form the first battery strings, first battery strings are in parallel two-by-two to form the second battery strings, and the second battery strings connect to form total battery strings；The back side of half piece back contact battery is equipped with conductive glue medium tie point, and sealed insulation spacer material layer is equipped between conducting wire core plate；The first encapsulating material layer is equipped with above the conducting wire core plate；Float flat glass layer is equipped with above first encapsulating material layer；Second encapsulating material layer is located at high light transmission embossing toughened glass layer.The more conventional H-type welding solar double-glass assemblies power of the utility model is high, while has higher reliability compared with back contacts Normal back plate component, and power also obtains larger promotion.
Description
Technical field
The utility model is related to a kind of half piece back contact battery photovoltaic solar double-glass assemblies, belong to MWT solar cells
Component processing technique field.
Background technology
The main mesh that reliability lifting assembly power is photovoltaic industry is improved in solar cell photovoltaic component field at present
Mark, it is glass on one side that common solar components, which usually encapsulate battery and are made, in the market, is single glass of macromolecule backboard on one side
Structure, while battery is all based on the welding of H-type welding, this component have that reliability is weak due to its intrinsic material property, work(
Rate promotion encounters bottleneck, hidden the shortcomings of splitting risk that welding stress zone comes, therefore the disadvantage mentioned above to solve current photovoltaic module,
The technical specialists of photovoltaic industry constantly research and development improve product, and the photovoltaic module based on MWT back-contact battery technology is not yet
Exception, it is also desirable to which constantly research and development improve product, contribute to promote industry product quality.
Solar double-glass assemblies are always hot spot in the industry, there is good reliability, and hidden rate of splitting is low, it is anti-it is hidden split low, can bear higher
The advantages that system voltage, but the more conventional back board module of the power of solar double-glass assemblies is slightly lower, is largely determined by no back side white back of the body
The reflected light of plate.
Utility model content
Purpose of utility model：For problems of the prior art with insufficient, the utility model offer one kind two/
A piece of back contact battery photovoltaic solar double-glass assemblies, more conventional H-type welding solar double-glass assemblies power is high, while compared with back contacts Normal back plate group
Part has higher reliability, and power also obtains larger promotion.
Technical solution：Half piece back contact battery photovoltaic solar double-glass assemblies described in the utility model, including multiple two
/ a piece of back contact battery, multiple half piece back contact battery fronts are horizontally set on the second encapsulating material layer, more
A half piece back contact battery is equipped with interval between each other；Multiple half piece back contact batteries are arranged in m * n matrix
Cloth, wherein n are even number, and the half piece back contact battery of each row connects to form n the first battery strings, the first electricity of each two
Pond connection in series-parallel, forms n/2 the second battery strings, and n/2 the second battery strings connect to form total battery strings；Half piece back contacts
The back side of battery is equipped with the conductive glue medium tie point for its backplate to be connected with conducting wire core plate, half piece
Back contact battery is realized by conducting wire core plate and connected, and forms total battery strings, half piece back contact battery and conductor wire
A floor is equipped between the core plate of road and is used for the sealing for being dielectrically separated from the half piece back contact battery back side and conducting wire core plate
Insulative separator material layer；The first encapsulating material layer is equipped with above the conducting wire core plate；Above first encapsulating material layer
Equipped with float flat glass layer；Second encapsulating material layer is located at high light transmission embossing toughened glass layer.
The utility model is intended to create a new technical solution, is made of half piece back contact battery double
Glass component, more common back plate type back contacts component can improve assembly reliability, improve system voltage, higher fire-protection rating, and zero
PID effects prevent hidden split.The processing procedure fragment that can solve common welded type solar double-glass assemblies simultaneously is more, big face caused by welding stress
Product it is hidden splits, hoisting power has encountered technical bottleneck, and cell piece easily deviates, unsightly the shortcomings of.
Full wafer battery design so that component string battery current mismatch loss is big, and then the heat loss that string is caused to hinder is larger,
Power is not high enough, and hoisting power encounters bottleneck.The connection in series-parallel design of half piece back contact battery, can will flow through in component
The current reduction of battery or even halve, so as to reduce ohmic loss, while ratio can be obtained based on back contact battery component technology
Traditional components are up to the component power of 15w.In addition, the thickness of copper foil can be reduced further on the conduction core plate of the back side, reach drop
This purpose.
In the utility model, half piece back contact battery, that is, half back contact battery is connect the full wafer back of the body using laser
Electric shock pond (such as size be 156.75*156.75mm or 158.50*158.50mm), which is cut, partly to be obtained, can from the front of battery or
It cuts at the person back side.
Preferably, half piece back contact battery adjacent in each row connects to form the first battery strings.
Preferably, two the first battery strings for forming the second battery strings are adjacent.
Preferably, the quantity of half piece back contact battery is 120,144,96 or 108.
Preferably, m=20,24,12 or 18, n=6.
Preferably, the float flat glass layer is float glass process tablet tempering or semi-tempered glass, float flat glass layer
On be provided with hole, for drawing the positive and negative anodes of photovoltaic double-glass assembly and connecting terminal box.
Preferably, terminal box is split terminal box.
Preferably, the high light transmission embossing toughened glass layer is the super white patterned tempering of low iron or semi-tempered glass.
Compared with prior art, the beneficial effects of the utility model are：
(1) the more common H-type welded type group of half piece back contact battery photovoltaic solar double-glass assemblies made of the utility model
The high 15W of part power.
(2) the common full slice system group of half piece back contact battery photovoltaic solar double-glass assemblies power ratio made of the utility model
The high 5w of part power, while temperature coefficient is low, generated energy is high by 2%.
(3) half piece back contact battery photovoltaic solar double-glass assemblies reliability made of the utility model is high, photovoltaic module
Quality guarantee can extend to 30 years.
(4) the utility model assembly making method is simply easy to industrialization, and yield is high.
Description of the drawings
Fig. 1 is the schematic cross-section of half piece back contact battery photovoltaic solar double-glass assemblies；
Fig. 2 is half piece back contact battery component conducting wire core plate series circuit figure；
Fig. 3 is half piece back contact battery component conducting wire core plate series-parallel circuit figure；
Fig. 4 is 120 half piece back contact battery series-parallel circuit connection diagrams；
1- float flat glass layers；The first encapsulating material layers of 2-；3- conducting wire core plates；One on 301- conducting wire core plates
The corresponding cathode point of piece half piece battery；The corresponding anode of another half piece battery on 302- conducting wire core plates
Point；4- sealed insulation spacer material layers；5- conduction glue medium tie points；6- half piece back contact batteries；The first electricity of 601-
It goes here and there in pond；The second battery strings of 602-；The second encapsulating material layers of 7-；8- high light transmissions are embossed toughened glass layer；9- terminal boxes.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate.
Such as Fig. 1, the present embodiment half piece back contact battery photovoltaic solar double-glass assemblies connect including multiple half pieces back of the body
Electric shock pond 6, multiple 6 fronts of half piece back contact battery are horizontally set on 7 on the second encapsulating material layer, multiple halfs
Piece back contact battery is equipped with interval between each other；Multiple half piece back contact batteries 6 are arranged in m * n matrix, and wherein n is
Even number not less than 2, adjacent half piece back contact battery connects to form n the first battery strings in each row, adjacent
First battery strings are in parallel two-by-two, form n/2 the second battery strings 602, and n/2 the second battery strings connect to form total battery strings；Two
The back side of/a piece of back contact battery is equipped with the conductive glue medium company for its backplate to be connected with conducting wire core plate 3
Contact 5, half piece back contact battery are realized by conducting wire core plate 3 and connected, and form total battery strings, the half piece back of the body
It contacts and is used between battery 6 and conducting wire core plate 3 equipped with one layer by the half piece back contact battery back side and conducting wire
The sealed insulation spacer material layer 4 that core plate is dielectrically separated from；3 top of conducting wire core plate is equipped with the first encapsulating material layer 2；First envelope
Float flat glass layer 1 is equipped with above package material layer；Second encapsulating material layer 7 is located at high light transmission embossing toughened glass layer 8.
The quantity of half piece back contact battery can be 120,144,96 or 108.
Cell piece is connected with special conducting wire core plate 3 by conductive glue medium tie point 5, intermediate one layer of sealing
Insulative separator material layer 4 is used to cell backside and conducting wire core plate being dielectrically separated from, it is ensured that the positive and negative anodes of each battery are not short
Road does not need to the welding used using conventional grid line cell encapsulation.The material of conducting wire core plate 3 can be that copper can also be
Aluminium.
Illustrate that its circuit is connected by taking 120 half piece back contact batteries as an example, such as Fig. 4,120 half piece back ofs the body
Battery is contacted to arrange in 20 × 6 matrixes, in each row, 20 half piece back contact batteries connect to form the first battery strings,
6 the first battery strings 601 are formed altogether, and then the first battery strings are in parallel two-by-two, form 3 the second battery strings 602,3 second
Battery strings connect to form total battery strings.Fig. 2 shows four half piece back contact battery series circuit figures；Fig. 3 is shown
Output circuit figure after two half piece back contact battery string end parallel connections.Encircled portion is conducting wire in Fig. 2 and Fig. 3
Core plate corresponds to the printing part of the positive pole 302 of half piece battery, cathode point 301 and conductive glue medium tie point, just
Pole and cathode point are in matrix distribution, odd number behavior cathode point, even number behavior anode point, serpentine-like on conducting wire core plate
Conducting wire pattern and conductive glue medium tie point connect positive pole, cathode point.
Positive high light transmission embossing toughened glass layer is the super white patterned tempering of low iron or semi-tempered glass, and the float glass process at the back side is put down
Glass sheet layer 1 is float glass process tablet tempering or semi-tempered glass, hole is provided on float flat glass layer, for drawing photovoltaic double-glass
The positive and negative anodes of component simultaneously connect terminal box, and thickness of glass can be 2,2.5mm, and the back side does not use the backboard of routine MWT encapsulation,
And float glass process plate tempered glass is used, it is the structure of double glazing, without aluminium frame.Terminal box is split terminal box, and simplification is led
Electric line graphic designs, while terminal box cable is saved, the structure of split terminal box and installation are routine techniques.
First encapsulating material layer 2 and the second encapsulating material layer 7 are EVA or POE encapsulating materials, and the first encapsulating material layer 2 can
To be transparent or white, the second encapsulating material layer 7 is transparent, for battery receptacle sunlight, two layers of encapsulation
Material layer is located at the inside of two surface glasses respectively.
It is first that the first layer float flat glass layer 1 of component is horizontal positioned during realization, then the first encapsulating material layer 2 is placed,
Conducting wire core plate 3 is placed again, is then coated with conductive glue medium tie point 5, covers sealed insulation spacer material layer 4, then successively
The half piece back contact battery 6 being cut by laser is placed, half piece back contact battery 6 cannot contact from each other,
The second encapsulating material layer 7 is laid with, finally places high light transmission pattern glass layer 8, finally installation connects terminal box 9 in laminate.
Such as to make 120 half piece battery components, first that first layer float glass process toughened glass layer 1 is horizontal positioned, glass
Glass size is 1647*986mm, then places the first encapsulating material layer 2, and size requirement can be with cover glass, then places special
Conducting wire core plate 3, then coat conductive glue medium tie point 5, covering sealed insulation spacer material layer 4, then be sequentially placed sharp
120 half back contact battery pieces, 6,120 half cell pieces of light well cutting cannot contact from each other, paving
If second layer encapsulating material 7, high light transmission embossing toughened glass layer 8 is finally placed, finally installation connects terminal box 9 in laminate.
The half battery component of other quantity and so on, it can be made into corresponding various sizes of component.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, under the premise of the utility model principle is not departed from, several improvement can also be made, these improvement also should be regarded as
The scope of protection of the utility model.
Claims (8)
1. a kind of half piece back contact battery photovoltaic solar double-glass assemblies, which is characterized in that connect including multiple half pieces back of the body
Electric shock pond (6), multiple half piece back contact battery fronts are horizontally set on the second encapsulating material layer (7), multiple two points
A piece of back contact battery between each other be equipped with interval；Multiple half piece back contact batteries are arranged in m * n matrix, wherein n
For even number, the half piece back contact battery of each row connects to form n the first battery strings (601), the first battery of each two
Connection in series-parallel, forms n/2 the second battery strings (602), and n/2 the second battery strings connect to form total battery strings；Half piece is carried on the back
The back side of contact battery is equipped with the conductive glue medium tie point (5) for its backplate to be connected with conducting wire core plate (3),
Half piece back contact battery is realized by conducting wire core plate and connected, and forms total battery strings, half piece back contacts electricity
One layer is equipped between pond and conducting wire core plate to be used to insulate at the half piece back contact battery back side and conducting wire core plate
The sealed insulation spacer material layer (4) of isolation；The first encapsulating material layer (2) is equipped with above the conducting wire core plate (3)；It is described
Float flat glass layer (1) is equipped with above first encapsulating material layer (2)；Second encapsulating material layer (7) is located at high light transmission pressure
Flower toughened glass layer (8).
2. half piece back contact battery photovoltaic solar double-glass assemblies according to claim 1, which is characterized in that in each row
Adjacent half piece back contact battery connects to form the first battery strings.
3. half piece back contact battery photovoltaic solar double-glass assemblies according to claim 1, which is characterized in that form second
Two the first battery strings of battery strings are adjacent.
4. half piece back contact battery photovoltaic solar double-glass assemblies according to claim 1, which is characterized in that half
The quantity of piece back contact battery is 120,144,96 or 108.
5. half piece back contact battery photovoltaic solar double-glass assemblies according to claim 1, which is characterized in that m=20,
24th, 12 or 18, n=6.
6. half piece back contact battery photovoltaic solar double-glass assemblies according to claim 1, which is characterized in that the float glass process
Plate glass layer is float glass process tablet tempering or semi-tempered glass, and hole is provided on float flat glass layer, double for drawing photovoltaic
The positive and negative anodes of glass component simultaneously connect terminal box.
7. half piece back contact battery photovoltaic solar double-glass assemblies according to claim 6, which is characterized in that terminal box is
Split terminal box.
8. half piece back contact battery photovoltaic solar double-glass assemblies according to claim 1, which is characterized in that described high saturating
Photo-embossing toughened glass layer is the super white patterned tempering of low iron or semi-tempered glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721789716.XU CN207542261U (en) | 2017-12-20 | 2017-12-20 | A kind of half piece back contact battery photovoltaic solar double-glass assemblies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721789716.XU CN207542261U (en) | 2017-12-20 | 2017-12-20 | A kind of half piece back contact battery photovoltaic solar double-glass assemblies |
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| Publication Number | Publication Date |
|---|---|
| CN207542261U true CN207542261U (en) | 2018-06-26 |
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ID=62618944
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721789716.XU Active CN207542261U (en) | 2017-12-20 | 2017-12-20 | A kind of half piece back contact battery photovoltaic solar double-glass assemblies |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459614A (en) * | 2019-08-05 | 2019-11-15 | 江苏日托光伏科技股份有限公司 | A kind of back contacts copper aluminium conducting wire core plate splicing component and its joining method |
| CN112838142A (en) * | 2020-12-22 | 2021-05-25 | 泰州隆基乐叶光伏科技有限公司 | Preparation method of solar cell module |
-
2017
- 2017-12-20 CN CN201721789716.XU patent/CN207542261U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459614A (en) * | 2019-08-05 | 2019-11-15 | 江苏日托光伏科技股份有限公司 | A kind of back contacts copper aluminium conducting wire core plate splicing component and its joining method |
| CN112838142A (en) * | 2020-12-22 | 2021-05-25 | 泰州隆基乐叶光伏科技有限公司 | Preparation method of solar cell module |
| CN112838142B (en) * | 2020-12-22 | 2022-12-06 | 泰州隆基乐叶光伏科技有限公司 | Preparation method of solar cell module |
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Address after: 214028 Xishi Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: Jiangsu Rituo Photovoltaic Technology Co., Ltd. Address before: 211800 No. 29 Buyue Road, Pukou Economic Development Zone, Nanjing City, Jiangsu Province Patentee before: Nanjing day care PV Polytron Technologies Inc |