CN205231081U - Two -sided electricity generation photovoltaic module - Google Patents
Two -sided electricity generation photovoltaic module Download PDFInfo
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- CN205231081U CN205231081U CN201521042973.8U CN201521042973U CN205231081U CN 205231081 U CN205231081 U CN 205231081U CN 201521042973 U CN201521042973 U CN 201521042973U CN 205231081 U CN205231081 U CN 205231081U
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- layer
- battery
- photovoltaic module
- generating electricity
- optimizer
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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
- Y02E10/52—PV systems with concentrators
Abstract
The utility model discloses a two -sided electricity generation photovoltaic module, including the lamination board, the lamination board includes from last glass layer, a EVA layer, group battery layer, the 2nd EVA layer and backsheet layer to superpose down, the group battery layer comprises a plurality of battery clusters, the horizontal array setting of a plurality of battery clusters group. Every battery cluster group is established ties by a plurality of battery pieces and constitutes, connects through the wire between the battery piece, and the battery piece is the battery piece of two -sided electricity generation, backsheet layer makes backsheet layer for transparent material, still include a plurality of optimizers, a string battery cluster group is connected to each optimizer to adjusting the output current or the voltage of every crosstalk pond piece, making the electric current of every crosstalk pond cluster group output unanimous, the electric current output that gathers is realized through the wire to a plurality of optimizer.
Description
Technical field
The utility model relates to photovoltaic module technical field, particularly a kind of generating electricity on two sides photovoltaic module.
Background technology
Along with the development of photovoltaic module technology, make the application of photovoltaic generation day by day universal and fast development, become the important sources of supply of electric power gradually, photovoltaic module under irradiation by sunlight, can be electric energy transform light energy, realizes photovoltaic generation.
At present, photovoltaic module adopts a large amount of solar battery sheets to be connected to form solar cell string, and encapsulates, then thereto, and this terminal box is the interface of outside output current.Transform light energy is become electric energy mainly through solar battery sheet by it, and therefore the intensity of sunlight directly affects the output variable of electric current.In order to solve this problem, existing photovoltaic module not only adopts double-side cell plate, and utilizes light deflection device to make solar irradiation be mapped to the back side of solar battery sheet, effectively improves generating efficiency.
Such as Chinese patent (CN203660980U) discloses a kind of generating electricity on two sides photovoltaic module with reflector, comprise frame and solar panel, solar panel is the double-side cell plate of generating electricity on two sides, reflector is provided with between solar panel and frame base plate, scuncheon is provided with draw-in groove, and reflector is arranged in draw-in groove.
The front that light is irradiated to solar panel makes its generation current, and the back side that light reflexes to cell panel through reflector makes its generation current, takes full advantage of illumination resource and generating efficiency is improved greatly.Because light is uneven, the electric current that solar panel can be caused to produce there are differences, if the series connection of each solar panel exported, can cause current mismatch, reduce efficiency.
Utility model content
Main purpose of the present utility model be to provide a kind of reliable, structure is simple and realize the photovoltaic module of generating electricity on two sides, and can be widely used in daily life.
Another object of the present utility model is to provide a kind of generating electricity on two sides photovoltaic module, wherein often goes here and there the voltage of battery strings or electric current by regulating, and the output current of battery strings of making often to go here and there is consistent, prevents current mismatch, and improves transform light energy rate.
For reaching above object, the utility model provides a kind of generating electricity on two sides photovoltaic module, and it comprises: laminated sheet, and described laminated sheet comprises glassy layer stacked from top to bottom, an EVA layer, battery layer, the 2nd EVA layer and backsheet layer;
Described battery layer is made up of multiple battery strings group, and multiple described battery strings group horizontal array is arranged; Each described battery strings group is U-shaped, and is composed in series by multiple cell piece, is connected, realize electric current and gather output between described cell piece by wire, and described cell piece is the cell piece of generating electricity on two sides;
Described backsheet layer is that backsheet layer made by transparent material;
Also comprise some optimizers, optimizer described in each connects a string described battery strings group, particularly, described optimizer connects often goes here and there the head and the tail two ends of described battery layer, and regulate and often go here and there the output current of described cell piece or voltage, the electric current that the described battery strings group that makes often to go here and there exports is consistent, and several optimizers realize electric current by wire and gather output.
Wherein, described cell piece is square silicon materials battery, and outer surface covers one deck anti-reflection protective film, and the wire made by silver connects two cell pieces, realizes electric current and gathers output.
Correspondingly, also comprise frame, described frame is used for fixing described laminated sheet, and is arranged on the peripheral position of described laminated sheet.
Correspondingly, also comprise terminal box, described set of terminal box is on described backsheet layer, and described terminal box is provided with the mounting groove placing described optimizer, described optimizer is fixed in described mounting groove.Correspondingly, the wire at described battery strings group head and the tail two ends of often going here and there connects optimizer described in this through described backboard.
As preferably, described terminal box adopts waterproof material to make, as plastics etc.Because described optimizer needs heat radiation, therefore by increasing described terminal box volume, and the effect that multiple air-vent realizes heat radiation is set.
In one embodiment, described backsheet layer is the backsheet layer that PEO (polyethylene glycol oxide) or PET (PETG) material are made.The thickness of described backboard is 0.2 ~ 0.4 micron.
As preferably, described backsheet layer upper and lower surface is respectively arranged with EVA tack coat and fluorine-containing rete, and described EVA tack coat is adjacent with described 2nd EVA layer.The thickness of described EVA tack coat and described fluorine-containing rete is all below 0.1 micron, and the stacked thickness added of described EVA tack coat, described backboard and described fluoropolymer membrane is 0.5 microns.
In one embodiment, described glassy layer upper surface is coated with layer of silicon dioxide.
In one embodiment, described glassy layer is the glassy layer that embossing tempered glass materials is made.
As preferably, the quantity of described battery strings group is 3 strings, and namely the quantity of described optimizer is also 3.
Owing to have employed above-mentioned technology, generating electricity on two sides photovoltaic module of the present utility model compared with prior art, the utility model generating electricity on two sides photovoltaic module, adopt the cell panel of generating electricity on two sides, and cooperatively interact with the backboard that transparent material is made, make more solar energy convert photoelectric current to, generating efficiency is improved greatly.By arranging optimizer, the voltage of regulating cell sheet or electric current, the output photoelectric stream of battery strings group of making often to go here and there can adjust to coupling, and reduces the loss.
The utility model is further illustrated below in conjunction with drawings and Examples.
Accompanying drawing explanation
Fig. 1 is the structural representation of laminated sheet described in the utility model;
Fig. 2 is the structural representation that battery layer described in the utility model is connected with optimizer.
Reference numeral
1 laminated sheet
2 glassy layers
3 the one EVA layers
4 battery layer
5 the 2nd EVA layers
6 backsheet layers
7 optimizers
8 cell pieces
9 wires
10 battery strings groups.
Embodiment
Below describe and realize the utility model for disclosing the utility model to enable those skilled in the art.Preferred embodiment in below describing only as an example, it may occur to persons skilled in the art that other apparent modification.The general principle of the present utility model defined in the following description can be applied to other embodiments, deformation program, improvement project, equivalent and not deviate from the other technologies scheme of spirit and scope of the present utility model.
As depicted in figs. 1 and 2, described generating electricity on two sides photovoltaic module comprises: laminated sheet 1 and frame, frame is used for fixed bed pressing plate 1, and is arranged on the peripheral position of laminated sheet 1, and laminated sheet 1 comprises glassy layer 2 stacked from top to bottom, an EVA layer 3, battery layer 4, the 2nd EVA layer 5 and backsheet layer 6;
Battery layer 4 is made up of multiple battery strings group 10, and multiple battery strings group 10 horizontal array is arranged, and each battery strings group 10 is U-shaped, and is composed in series by multiple cell piece 8, is connected between cell piece 8 by wire 9, and cell piece 8 is the cell piece of generating electricity on two sides;
Backsheet layer 6 makes backsheet layer for transparent material.Particularly, backsheet layer 6 is the backsheet layer that PEO or PET material are made;
Also comprise some optimizers 7, each optimizer 7 connects a string battery strings group 10, and regulates and often go here and there the output current of cell piece 8 or voltage, and the electric current that the battery strings group 10 that makes often to go here and there exports is consistent, and several optimizers 7 realize electric current by wire 9 and gather output.
Wherein, optimizer 7 regulates often goes here and there the output current of cell piece 8 and voltage, and the electric current that the cell piece 8 that makes often to go here and there exports is consistent.For example:
Existing three string battery strings groups, the gross power of photovoltaic module is 240W, and often the input power of string battery strings group is 80W, and input voltage is 10V, and input current is 8A.If a wherein cell piece of a string battery strings group sunlight that cannot be irradiated to, when not adopting optimizer, the electric current of this string battery strings group is 0, and therefore the gross output P of this photovoltaic module is 160W.
And when adopting optimizer, optimizer regulates the voltage and current of often string battery strings group, the output current of battery strings group of making often to go here and there is consistent, and particularly, the input current of this string battery strings group is 4A, input voltage is 11V, output current is made to be 8A, because input power is equal with power output, therefore, this output voltage is 5.5V, and namely the gross output of this photovoltaic module is P=5.5X8+10X8+10X8=204W.
This cell piece 8 is the cell piece of generating electricity on two sides, when cell piece 8 front by solar light irradiation generation current, due to backsheet layer 6 for transparent material is made, therefore cell piece 8 the back side by reflection solar light irradiation and generation current.Erecting bed is utilized to realize reflection, such as ground etc.Meanwhile, also can increase by a reflex reflector, sunlight be reflexed to the back side of cell piece.
Correspondingly, also comprise terminal box, set of terminal box is on backsheet layer, and terminal box is provided with the mounting groove placing optimizer, optimizer is fixed in mounting groove.Correspondingly, often the wire at string battery strings group head and the tail two ends connects this optimizer through backboard.
Wherein, terminal box adopts waterproof material to make, as plastics etc.Because optimizer needs heat radiation, therefore by increasing terminal box volume, and the effect that multiple air-vent realizes heat radiation is set.
Wherein, frame is the frame that anodised aluminium section bar is made, and also can be plastic frame, or directly with the peripheral position of rubber belt sealing laminated sheet.
Wherein, glassy layer 2 adopts ultrawhite low iron embossing toughened glass.By using embossed pattern, effectively can avoid the mirror-reflection of sunlight, adding the transmitance of sunlight, effectively improve service efficiency, strengthen the energy output of cell piece.
Correspondingly, glassy layer 2 upper surface is coated with layer of silicon dioxide.Further increase the transmitance of sunlight, reduce the energy loss that reverberation brings.
Wherein, backsheet layer 6 upper and lower surface is respectively arranged with EVA tack coat and fluorine-containing rete, and EVA tack coat is adjacent with the 2nd EVA layer.
Backsheet layer 6 thickness is 0.2 ~ 0.4 micron, in order to stop entering of steam.Stick the fluorocarbon film containing fluorine element respectively in the upper and lower surface of backsheet layer 6, thickness, below 0.1 micron, is used for stoping the ultraviolet of sunlight to the erosion of PET material, and intercepts entering of steam.
Due to sunlight uneven irradiation, the electric current that every block cell piece is produced is variant.Owing to often going here and there battery strings group for being connected in series, once a cell piece can not be irradiated to sunlight, the electric current of whole string battery strings group can be affected.Now optimizer regulates often going here and there the electric current of battery strings group and voltage, when keeping total output energy constant, automatically regulating each string battery strings group output current, reaching consistent adjustment, thus avoid the loss of emergent power.
According to described preferred embodiment, the utility model also provides following advantage:
(1) simple and reliable for structure;
(2) the utility model adopts the cell piece of generating electricity on two sides, realizes generating electricity on two sides, and cooperatively interacts with the backboard that transparent material is made, make more solar energy convert photoelectric current to, generating efficiency is improved greatly.
(3) the utility model adopts voltage or the electric current of optimizer regulating cell sheet, and the output current of battery strings group of making often to go here and there is consistent, thus avoids the loss of emergent power.
(4) the utility model is by having a terminal box, and optimizer is fixed in terminal box, plays the effect of protection optimizer, effectively increases the service life.
Above-described embodiment is only for illustration of technological thought of the present utility model and feature, its object is to enable those skilled in the art understand content of the present utility model and implement according to this, only can not limit the scope of the claims of the present utility model with the present embodiment to adopt, namely the equal change done of all spirit disclosed according to the utility model or modification, still drop on the scope of the claims of the present utility model.
Claims (8)
1. a generating electricity on two sides photovoltaic module, comprise laminated sheet (1), described laminated sheet (1) comprises glassy layer (2) stacked from top to bottom, an EVA layer (3), battery layer (4), the 2nd EVA layer (5) and backsheet layer (6), it is characterized in that:
Described battery layer (4) is made up of multiple battery strings group (10), multiple described battery strings group (10) horizontal array is arranged, each described battery strings group (10) is U-shaped, and be composed in series by multiple cell piece (8), connected by wire (9) between described cell piece (8), the cell piece that described cell piece (8) is generating electricity on two sides;
Described backsheet layer (6) makes backsheet layer for transparent material;
Also comprise some optimizers (7), optimizer described in each (7) connects a string described battery strings group (10), and regulate and often go here and there the output current of described cell piece (8) or voltage, the electric current that the described battery strings group (10) that makes often to go here and there exports is consistent, and optimizer described in several (7) realizes electric current by described wire (9) and gathers output.
2. generating electricity on two sides photovoltaic module as claimed in claim 1, is characterized in that: the backsheet layer that described backsheet layer (6) is made for PEO or PET material.
3. generating electricity on two sides photovoltaic module as claimed in claim 1, is characterized in that: the glassy layer that described glassy layer (2) is made for embossing tempered glass materials.
4. generating electricity on two sides photovoltaic module as claimed in claim 1, is characterized in that: described glassy layer (2) upper surface is coated with layer of silicon dioxide.
5. generating electricity on two sides photovoltaic module as claimed in claim 1, it is characterized in that: described backsheet layer (6) upper and lower surface is respectively arranged with EVA tack coat and fluorine-containing rete, described EVA tack coat is adjacent with described 2nd EVA layer.
6. generating electricity on two sides photovoltaic module as claimed in claim 1, it is characterized in that: also comprise terminal box, described set of terminal box is on described backsheet layer (6), described terminal box is provided with the mounting groove placing described optimizer (7), described optimizer (7) is fixed in described mounting groove.
7. generating electricity on two sides photovoltaic module as claimed in claim 1, is characterized in that: described backsheet layer (6) thickness is 0.2 ~ 0.4 micron.
8. generating electricity on two sides photovoltaic module as claimed in claim 1, is characterized in that: also comprise frame, and described frame is used for fixing described laminated sheet (1), and is arranged on the peripheral position of described laminated sheet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521042973.8U CN205231081U (en) | 2015-12-15 | 2015-12-15 | Two -sided electricity generation photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521042973.8U CN205231081U (en) | 2015-12-15 | 2015-12-15 | Two -sided electricity generation photovoltaic module |
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| Publication Number | Publication Date |
|---|---|
| CN205231081U true CN205231081U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521042973.8U Expired - Fee Related CN205231081U (en) | 2015-12-15 | 2015-12-15 | Two -sided electricity generation photovoltaic module |
Country Status (1)
| Country | Link |
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| CN (1) | CN205231081U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405906A (en) * | 2015-12-15 | 2016-03-16 | 上海正硅实业发展有限公司 | Double-sided power-generating photovoltaic assembly |
| CN106452352A (en) * | 2016-11-09 | 2017-02-22 | 常州天合光能有限公司 | Double-sided photovoltaic module |
| CN106784099A (en) * | 2016-12-19 | 2017-05-31 | 韩华新能源（启东）有限公司 | A kind of method for increasing double-side assembly back side generated energy |
-
2015
- 2015-12-15 CN CN201521042973.8U patent/CN205231081U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405906A (en) * | 2015-12-15 | 2016-03-16 | 上海正硅实业发展有限公司 | Double-sided power-generating photovoltaic assembly |
| CN106452352A (en) * | 2016-11-09 | 2017-02-22 | 常州天合光能有限公司 | Double-sided photovoltaic module |
| CN106784099A (en) * | 2016-12-19 | 2017-05-31 | 韩华新能源（启东）有限公司 | A kind of method for increasing double-side assembly back side generated energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20181215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |