CN209434204U - A kind of slice photovoltaic module - Google Patents
A kind of slice photovoltaic module Download PDFInfo
- Publication number
- CN209434204U CN209434204U CN201822211871.4U CN201822211871U CN209434204U CN 209434204 U CN209434204 U CN 209434204U CN 201822211871 U CN201822211871 U CN 201822211871U CN 209434204 U CN209434204 U CN 209434204U
- Authority
- CN
- China
- Prior art keywords
- solar battery
- electric conductor
- cell piece
- photovoltaic module
- battery sheet
- 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.)
- Expired - Fee Related
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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
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a kind of slice photovoltaic module, including skin glass, upper encapsulated layer, solar battery string layer, lower encapsulated layer and the backboard set gradually from top to bottom, the solar battery string layer includes several solar battery strings, every group of solar battery string includes several solar battery sheets connected using the first electric conductor and the second electric conductor, the solar battery sheet is slice cell piece, solar battery sheet is connected in series in front in first electric conductor, and solar battery sheet is overleaf connected in series in the second electric conductor.The utility model reduces optical loss by the reflection of increase conductive regions and solar battery sheet gap area light, by reducing component internal electric current and series resistance, reduces electricity loss, the output power and transfer efficiency of component is finally substantially improved.
Description
Technical field
The utility model relates to technical field of solar more particularly to a kind of slice photovoltaic modulies.
Background technique
Solar energy is receive more and more attention as a kind of clean renewable new energy, and application is also increasingly wider
General, one most important application of solar energy at present is exactly photovoltaic power generation.Photovoltaic power generation is using photovoltaic effect directly by solar energy
Electric energy is converted to, the basic unit of photovoltaic power generation is solar battery, in specific application, usually by multiple solar-electricities
Pond piece constitutes solar cell module, then again connects each solar cell module and constitutes whole electric current output.
Conventional photovoltaic assemblies are essentially all to be made of tempered glass, solar battery sheet and backboard, tempered glass with
EVA encapsulating material is equipped between solar battery sheet, solar battery sheet and backboard.In the encapsulation process of photovoltaic module, meeting
Certain encapsulation power loss is generated, so that the real output of component is less than the sum of the power of all cell pieces after encapsulation.
In general, encapsulation loss is broadly divided into optical loss and electricity loss.The spectral response range of silicon solar cell is generally
300nm-1100nm, the factor that any light for making this wave band enters battery reduction can all cause loss optically, such as tempering
Glass and EVA can cause certain optical loss to blocking etc. for light to the absorption and reflection of light, welding part.In addition, too
It is positive can the mismatch of battery electric property, welding, the resistance of convergent belt and terminal box, the contact resistance between different materials can also make
It is lost at certain electricity.For the power loss that resistance generates, formula P=I can be used2* R is indicated, it can be seen that, it reduces
Electric current and resistance can reduce power loss.
Therefore, the power loss during component package how is reduced to greatest extent, increases the output power of component and is turned
Efficiency is changed to be a technical problem that technical personnel in the field need to solve at present.
Summary of the invention
The purpose of this utility model aims to solve the problem that the above problem, by increasing conductive regions and solar battery sheet gap
The reflection of area light reduces optical loss；By reducing component internal electric current and series resistance, electricity loss is reduced, finally greatly
The output power and transfer efficiency of width lifting assembly.
A kind of slice photovoltaic module in the utility model, including set gradually from top to bottom skin glass, upper encapsulated layer,
Solar battery string layer, lower encapsulated layer and backboard, the solar battery string layer include several solar battery strings, every group of sun
Energy battery strings include several solar battery sheets connected using the first electric conductor and the second electric conductor, the solar battery sheet
To be sliced cell piece, solar battery sheet, the second electric conductor overleaf company of series connection is connected in series in front in first electric conductor
Connect solar battery sheet.
Solar battery sheet in the solar battery string includes p-type cell piece and N-type battery slice, p-type cell piece and N
Type cell piece is arranged alternately, and is connected in its front using the first electric conductor between adjacent p-type cell piece and N-type battery slice, the back side
It is connected using the second electric conductor.
First electric conductor and the second electric conductor have different sections, and the first electric conductor sectional area is less than the second conduction
Body section product.
First electric conductor and the second electric conductor are to apply tin copper strips or conducting resinl.
First electric conductor front is equipped with reflective membrane.
The solar battery sheet is half cell piece or 1/n piece cell piece, and n is greater than or equal to 3, same solar battery
Solar battery sheet in string is of the same size.
The upper encapsulated layer and lower encapsulated layer be vinyl-vinyl acetate copolymer, polyolefin, polyvinyl butyral or
Silicone.
Compared with the prior art, the advantages of the present invention are: being reduced by reducing electricity loss and optical loss
Power loss during component package.In terms of reducing electricity loss, by using slice cell piece, the work of component is reduced
Make electric current, to reduce power loss caused by resistance；By simplifying p-type cell piece and N-type battery slice combined use
Connection type between cell piece realizes the ipsilateral connection of adjacent cell piece, since the second electric conductor is connected at the cell piece back side
It connects, therefore reduces the series resistance of component by using the second electric conductor of bigger sectional area, further reduced resistance and make
At electricity loss.In terms of reducing optical loss, the reflective membrane of the first electric conductor front setting can be irradiated to this region
The light overwhelming majority be reflected to solar battery sheet surface and reuptaked utilization, thus reduce the first electric conductor to light
Optical loss caused by blocking；Since the cell piece in component is slice cell piece, there are more clearance planes between cell piece
The reflection of product, this area light increases, and further reduced optical loss.Therefore, electricity loss and optics during component package
The reduction of loss improves the peak power output and transfer efficiency of component.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of sectional view for being sliced photovoltaic module of the utility model.
Fig. 2 is a kind of partial schematic diagram for being sliced photovoltaic module of the utility model.
Wherein, 1 is skin glass, and 2 be upper encapsulated layer, and 3 be solar battery string layer, and 4 be lower encapsulated layer, and 5 be backboard, 6
It is the first electric conductor for solar battery sheet, 7,8 be the second electric conductor, and 9 be reflective membrane.
Specific embodiment
For that can further appreciate that the technical characteristics of the utility model and content, it is illustrated with reference to the accompanying drawing.
As shown in Figures 1 and 2, a kind of slice photovoltaic module, including skin glass 1, the upper envelope set gradually from top to bottom
Filling layer 2, solar battery string layer 3, lower encapsulated layer 4 and backboard 5, the solar battery string layer includes several solar batteries
String, every group of solar battery string include several solar battery sheets 6 connected using the first electric conductor 7 and the second electric conductor 8, institute
Solar battery sheet is stated as slice cell piece, solar battery sheet is connected in series in front in first electric conductor, and second is conductive
Solar battery sheet is overleaf connected in series in body.
Solar battery sheet in the solar battery string includes p-type cell piece and N-type battery slice, in same solar energy
In battery strings, p-type cell piece and N-type battery slice are arranged alternately, and such arrangement mode makes adjacent p-type cell piece and N-type cell
Piece is in ipsilateral two sides and is negative with different polarity, such as p-type cell piece front polarity, and N-type battery slice front polarity is
Just, therefore using the first electric conductor adjacent p-type cell piece front is connected with N-type battery slice front, two panels battery may be implemented
The series connection of piece；Similarly, the adjacent p-type cell piece back side is connected using the second electric conductor with the N-type battery slice back side and is also able to achieve two
The series connection of piece cell piece.Since the second electric conductor is attached at the cell piece back side, led using the second of bigger sectional area
Electric body can reduce the series resistance of component, to reduce the loss of electricity caused by resistance.In the present embodiment, cutting in component
Piece cell piece is half cell piece, so that the operating current in single battery string is the half of conventional batteries piece, in addition drop
Low component series resistance, the electricity loss during component package are greatly reduced.
First electric conductor front is provided with reflective membrane, which can make the light overwhelming majority for being irradiated to this region anti-
It is mapped to solar battery sheet surface and is reuptaked utilization, thus reduce the first electric conductor and optics caused by the blocking of light is damaged
It loses；Since the cell piece in component is slice cell piece, there is more interval areas, the reflection of this area light between cell piece
Increase, both reflection superpositions will greatly improve solar battery sheet to the utilization rate of luminous energy, significantly reduce optical loss.Cause
This, by reduce component package during electricity loss and optical loss, greatly improve component peak power output and
Transfer efficiency.
Above embodiments are intended merely to illustrate the purpose of this utility model, and are not used as the restriction to the utility model,
Related technical personnel in the art can carry out multiplicity in the range of without departing from the utility model technical idea completely
Change and modification.As long as will all be fallen in the essential scope of the utility model to variation, the modification of embodiment described above
In the scope of the claims of the utility model.
Claims (7)
1. a kind of slice photovoltaic module, including set gradually from top to bottom skin glass, upper encapsulated layer, solar battery string
Layer, lower encapsulated layer and backboard, it is characterised in that: the solar battery string layer includes several solar battery strings, every group of sun
Energy battery strings include several solar battery sheets connected using the first electric conductor and the second electric conductor, the solar battery sheet
To be sliced cell piece, solar battery sheet, the second electric conductor overleaf company of series connection is connected in series in front in first electric conductor
Connect solar battery sheet.
2. photovoltaic module as described in claim 1, it is characterised in that: the solar battery sheet in the solar battery string
Including p-type cell piece and N-type battery slice, p-type cell piece and N-type battery slice are arranged alternately, adjacent p-type cell piece and N-type cell
It is connected in its front using the first electric conductor between piece, the back side is connected using the second electric conductor.
3. photovoltaic module as described in claim 1, it is characterised in that: first electric conductor and the second electric conductor have not
Same section, the first electric conductor sectional area is less than the second electric conductor sectional area.
4. photovoltaic module as described in claim 1, it is characterised in that: first electric conductor and the second electric conductor are to apply tin
Copper strips or conducting resinl.
5. photovoltaic module as described in claim 1, it is characterised in that: first electric conductor front is equipped with reflective membrane.
6. photovoltaic module as described in claim 1, it is characterised in that: the solar battery sheet is half cell piece or 1/n
Piece cell piece, n are greater than or equal to 3, and the solar battery sheet in same solar battery string is of the same size.
7. photovoltaic module as described in claim 1, it is characterised in that: the upper encapsulated layer and lower encapsulation layer material are ethylene-
Vinyl acetate copolymer, polyolefin, polyvinyl butyral or silicone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822211871.4U CN209434204U (en) | 2018-12-26 | 2018-12-26 | A kind of slice photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822211871.4U CN209434204U (en) | 2018-12-26 | 2018-12-26 | A kind of slice photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209434204U true CN209434204U (en) | 2019-09-24 |
Family
ID=67973984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822211871.4U Expired - Fee Related CN209434204U (en) | 2018-12-26 | 2018-12-26 | A kind of slice photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209434204U (en) |
-
2018
- 2018-12-26 CN CN201822211871.4U patent/CN209434204U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190924 Termination date: 20201226 |