CN208189613U - Photovoltaic module - Google Patents
Photovoltaic module Download PDFInfo
- Publication number
- CN208189613U CN208189613U CN201820821342.3U CN201820821342U CN208189613U CN 208189613 U CN208189613 U CN 208189613U CN 201820821342 U CN201820821342 U CN 201820821342U CN 208189613 U CN208189613 U CN 208189613U
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- Prior art keywords
- cell piece
- back side
- photovoltaic module
- several
- electric current
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- 230000037361 pathway Effects 0.000 claims abstract description 30
- 238000003466 welding Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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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- Photovoltaic Devices (AREA)
Abstract
The utility model provides a kind of photovoltaic module, several interconnecting strips including several cell pieces and connection cell piece, it is connected between two neighboring cell piece by several interconnecting strips and is formed with several electric current carrying pathways, the back side of the cell piece is equipped with several row rear electrodes covered by several interconnecting strips, is connected between adjacent two electric current carrying pathways by least one interface channel.The utility model photovoltaic module is by the way that each electric current carrying pathway at the cell piece back side to be attached, the current anomaly problem that can occur in each electric current carrying pathway of very good solution, the connection reliability at the cell piece back side or the problem of contact resistance unevenness can be improved, influence of the also maskable bad cell piece to normal battery piece, and the adverse consequences of bad cell piece itself generation is weakened, be conducive to the generating efficiency and service life that improve photovoltaic module.
Description
Technical field
The utility model relates to photovoltaic art more particularly to a kind of photovoltaic modulies.
Background technique
As shown in Figure 1, all being concatenated by welding B between cell piece A, being connected respectively by welding B mostly in existing photovoltaic module
It is connected to the front electrode and rear electrode of two neighboring cell piece A, realizes the electric connection of the two, the welding B and cell piece A
Front electrode and rear electrode C between using be welded to connect, but due to welding procedure control bad or battery plate electrode sheet
The defect of body, so that it is bad or connect often to there is connection reliability between welding B and cell piece A in certain positions or region
The uneven problem of electric shock resistance, for example, being contacted if a certain cell piece carries on the back electric field D because of it with rear electrode C in entire photovoltaic module
Resistance is uneven and when there is current anomaly, due to the connection type of existing welding, there is abnormal cell piece and usually influence whether
Other normal battery pieces in photovoltaic module, so that the case where normal battery piece also will appear current unevenness, and then cause
The performance of photovoltaic module can further deteriorate, and be unfavorable for the long-time service of photovoltaic module.
Utility model content
In view of this, the present invention provides a kind of photovoltaic modulies, electricity occur to improve the cell piece back side in the prior art
The problem of throat floater.
Specifically, the utility model is achieved by the following technical solution: providing a kind of photovoltaic module comprising several
Cell piece and several interconnecting strips for connecting cell piece, are connected and are formed by several interconnecting strips between two neighboring cell piece
There are several electric current carrying pathways, the back side of the cell piece is equipped with several row rear electrodes covered by several interconnecting strips,
It is connected between adjacent two electric current carrying pathways by least one interface channel.
Further, the interface channel be an independent conductive strips, the conductive strips by welding simultaneously with
At least two interconnecting strip connections at the single battery piece back side, and conductive strips and the link position of interconnecting strip are located in the interconnecting strip
The region of rear electrode is not covered.
Further, the conductive strips are welded to connect with each interconnecting strip simultaneously, and the both ends of conductive strips are no more than first trip
Position where rear electrode and footline rear electrode.
Further, the extending direction of the conductive strips and the extending direction of the interconnecting strip are mutually perpendicular to, and conductive strips
By the geometric center of the cell piece.
Further, the single battery piece back side is connected at least two conductive strips, and parallel to each other between the conductive strips.
Further, the interface channel is the strip auxiliary electrode for being printed in the cell piece back side, the auxiliary electrode
At least two electric current carrying pathways are connected simultaneously.
Further, the extension side for extending perpendicularly to the electric current carrying pathway and interconnecting strip of the auxiliary electrode
To, and the rear electrode at auxiliary electrode and the cell piece back side is printed in the back side of the cell piece simultaneously and is integrally joined to each other.
Further, the auxiliary electrode at the single battery piece back side has several columns, and each column auxiliary electrode has concatenated phase
The rear electrode being located in same position in adjacent two row rear electrodes.
Further, the column of the auxiliary electrode of the quantity and cell piece back side of the rear electrode in every a line rear electrode
Number is identical.
Further, the electric current carrying pathway is connected to the back side of adjacent cell piece from the front of a cell piece.
The utility model photovoltaic module, can be good by the way that each electric current carrying pathway at the cell piece back side to be attached
It solves the problems, such as the current anomaly occurred in each electric current carrying pathway, the connection reliability or contact electricity at the cell piece back side can be improved
Uneven problem, influence of the also maskable bad cell piece to normal battery piece are hindered, and weakens bad cell piece itself generation
Adverse consequences is conducive to the generating efficiency and service life that improve photovoltaic module.
Detailed description of the invention
Fig. 1 is the back side connection schematic diagram between the adjacent cell piece of photovoltaic module in the prior art.
Fig. 2 is the connection schematic diagram between the adjacent cell piece of photovoltaic module in the utility model first embodiment.
When Fig. 3 is that the photovoltaic module monolithic battery piece back side is connected with a plurality of conductive strips in the utility model first embodiment
Connection schematic diagram.
Fig. 4 is the schematic rear view of the cell piece of photovoltaic module in the utility model second embodiment.
Fig. 5 is the connection schematic diagram between the adjacent cell piece of photovoltaic module in the utility model second embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The example of the consistent device and method of some aspects be described in detail in the appended claims, the utility model.
It is only to be not intended to be limiting this reality merely for for the purpose of describing particular embodiments in the term that the utility model uses
With novel.In the "an" of the utility model and singular used in the attached claims, " described " and "the"
Most forms are intended to include, unless the context clearly indicates other meaning.It is also understood that term used herein " and/
Or " refer to and include that one or more associated any or all of project listed may combine.
The utility model provides a kind of photovoltaic module, the interconnecting strip including several cell pieces and connection cell piece, the electricity
The front of pond piece is equipped with several front electrodes, and the back side of cell piece is equipped with back electric field and several row rear electrodes, the back side
The line number of electrode is identical as the quantity of the front electrode and the extending direction of the two is identical.Pass through between two neighboring cell piece
The interconnecting strip connection, and interconnecting strip is connected on the rear electrode and front electrode, realizes the phase between adjacent cell piece
It connects.
When between two neighboring cell piece being series relationship, one end of the interconnecting strip is being connected to a cell piece just
On the electrode of face, the other end is connected in the rear electrode of adjacent cell piece, when between two neighboring cell piece being parallel relationship,
The both ends of the interconnecting strip are respectively connected in the rear electrode of two neighboring cell piece, no matter be between two neighboring cell piece
Series connection or in parallel, is required to realize electric current transmission by the interconnecting strip, therefore, formd between two neighboring cell piece by
Several electric current carrying pathways that the interconnecting strip is constituted, make electric current flow to another cell piece, and the electricity from a cell piece
The quantity for flowing transmission path is identical as the line number of the rear electrode, when even the rear electrode line number of cell piece is 4 row, the electricity
The interconnecting strip quantity connected needed for the piece back side of pond is also 4, to form 4 electric current carrying pathways, each electric current carrying pathway
Between keep be parallel to each other and extended on another cell piece from a cell piece, established between two neighboring cell piece
Play connection relationship, it is worth mentioning at this point that, at least one has been also set up between two neighboring electric current carrying pathway in the utility model
Interface channel, the direction for extending perpendicularly to the electric current carrying pathway of the interface channel, and every a connection channel is at least
Two electric current carrying pathways are connected simultaneously, in this way, can make the adjacent of the single battery piece back side by the overlap joint of interface channel
Establish current channel between two row rear electrodes, be conducive to carry out electric current redistribute, can effectively reduce back electric field with
Rear electrode contact resistance unevenness bring influences, and ought wherein an electric current carrying pathway when something goes wrong can be by connection
Electric current transmission is realized in channel, to improve the service life of photovoltaic module.
As shown in Fig. 2, the two neighboring cell piece 10 of the photovoltaic module passes through in the utility model first embodiment
Several interconnecting strips 20 connect, and the back side of the cell piece 10 is equipped with several row rear electrodes 11, and each interconnecting strip 20 is along the back side
The extending direction of electrode 11 is soldered in that a line rear electrode 11 corresponding to it, and one end of interconnecting strip 20 is connected to one
It in the rear electrode 11 of cell piece 10, and is to be welded to connect with the rear electrode 11.In the present embodiment, the same battery
Being overlapped by conductive strips 12 between several electric current carrying pathway S1-S5 at 10 back side of piece, it is logical as connection by the conductive strips 12
Road, and the quantity of the conductive strips 12 can be one, be also possible to more disposed in parallel (as shown in figure 3, single battery piece
The conductive strips 12 at the back side at least two, and parallel to each other between the conductive strips 12), specifically, the conductive strips 12 are straight
Overlap joint is connect to each interconnecting strip 20 at 10 back side of cell piece, so that several interconnecting strips 20 at 10 back side of monolithic battery piece be overlapped
Get up, so that realizes between each electric current carrying pathway S1-S5 at 10 back side of cell piece gangs up, and conductive strips 12 and interconnection
The link position of item 20 is located at the region for not covering rear electrode 11 in the interconnecting strip 20.In addition, the conductive strips 12 use
The mode of welding or bonding is overlapped to each interconnecting strip 20, and conductive strips 12 are perpendicular to the interconnecting strip 20, the conductive strips
12 pass through the geometric center of the cell piece 10.The quantity of the interconnecting strip 20 is at least 4, the conductive strips 12 at least 1
Item, and the both ends of the conductive strips 12 are no more than the position where first trip rear electrode and footline rear electrode.
As shown in Figure 4, Figure 5, in the utility model second embodiment, the back side of the cell piece 50 of the photovoltaic module is set
There are back electric field 501 and several row rear electrodes 51, includes the rear electrode 51 of several equidistantly distributeds in every a line, in a line
Several rear electrodes 51 concatenated by interconnecting strip 60, and the quantity of the rear electrode 51 in every a line is all the same.In this implementation
In example, overlapped between each electric current carrying pathway S1-S5 at 50 back side of cell piece by strip auxiliary electrode 52, by the auxiliary
Electrode 52 has connected each electric current carrying pathway S1-S5, the auxiliary electrode 52 and the rear electrode 51 as interface channel
The back side of the cell piece 50 is printed on by the way of printing, specifically, the extending direction of the auxiliary electrode 52 is vertical
In the electric current carrying pathway S1-S5 and interconnecting strip 60, and auxiliary electrode 52 and rear electrode 51 are printed by same printing screen plate
It forms, the two is shaped in 50 back side of cell piece and is integrally joined to each other.It is preferential, 50 back side of single battery piece it is auxiliary
Help electrode 52 that there are several columns, and each column auxiliary electrode 52 has concatenated the back being located in same position in each row rear electrode 51
Face electrode 51, to be connected in series each electric current carrying pathway at 50 back side of cell piece by auxiliary electrode 52, the auxiliary
The columns of electrode 52 is equal to the quantity of rear electrode 51 in every a line rear electrode 51.
In conclusion the utility model is by taking each electric current carrying pathway S1-S5 of cell piece 10,50 back sides
It connects, the current anomaly problem that can occur in each electric current carrying pathway of very good solution can improve the company of cell piece 10,50 back sides
Connect the problem of reliability or contact resistance unevenness, the influence of also maskable 10,50 pairs of normal battery pieces 10,50 of bad cell piece,
And the adverse consequences of bad cell piece 10,50 itself generation is weakened, the generating efficiency for improving photovoltaic module is conducive to and uses the longevity
Life.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model
Within the scope of protection.
Claims (10)
1. a kind of photovoltaic module, including several cell pieces and several interconnecting strips of cell piece are connected, between two neighboring cell piece
Several electric current carrying pathways are connected and are formed with by several interconnecting strips, and the back side of the cell piece is equipped with by described several
Several row rear electrodes of interconnecting strip covering, which is characterized in that connect between adjacent two electric current carrying pathways by least one
Connect road connection.
2. photovoltaic module as described in claim 1, which is characterized in that the interface channel is an independent conductive strips, described
Conductive strips by way of welding or bonding simultaneously connect at least two interconnecting strips at the single battery piece back side, and conductive strips and
The link position of interconnecting strip is located at the region for not covering rear electrode in the interconnecting strip.
3. photovoltaic module as claimed in claim 2, which is characterized in that the conductive strips are welded with each interconnecting strip simultaneously to be connected
It connects, and the both ends of conductive strips are no more than the position where first trip rear electrode and footline rear electrode.
4. photovoltaic module as claimed in claim 3, which is characterized in that the extending direction of the conductive strips and the interconnecting strip
Extending direction is mutually perpendicular to, and conductive strips pass through the geometric center of the cell piece.
5. photovoltaic module as claimed in claim 2, which is characterized in that the single battery piece back side is connected at least two conductions
Band, and it is parallel to each other between the conductive strips.
6. photovoltaic module as described in claim 1, which is characterized in that the interface channel is the length for being printed in the cell piece back side
Bar shaped auxiliary electrode, the auxiliary electrode connect at least two electric current carrying pathways simultaneously.
7. photovoltaic module as claimed in claim 6, which is characterized in that the auxiliary electrode extends perpendicularly to the electricity
The extending direction of transmission path and interconnecting strip is flowed, and the rear electrode at auxiliary electrode and the cell piece back side is printed in the electricity simultaneously
It the back side of pond piece and is integrally joined to each other.
8. photovoltaic module as claimed in claim 7, which is characterized in that the auxiliary electrode at the single battery piece back side has several
Column, and each column auxiliary electrode has concatenated the rear electrode being located in same position in adjacent rows rear electrode.
9. photovoltaic module as claimed in claim 8, which is characterized in that the quantity of the rear electrode in every a line rear electrode with
The columns of the auxiliary electrode at the cell piece back side is identical.
10. photovoltaic module as claimed in any one of claims 1 to 9, which is characterized in that the electric current carrying pathway is from one
The front of cell piece is connected to the back side of adjacent cell piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820821342.3U CN208189613U (en) | 2018-05-30 | 2018-05-30 | Photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820821342.3U CN208189613U (en) | 2018-05-30 | 2018-05-30 | Photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208189613U true CN208189613U (en) | 2018-12-04 |
Family
ID=64427680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820821342.3U Active CN208189613U (en) | 2018-05-30 | 2018-05-30 | Photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208189613U (en) |
-
2018
- 2018-05-30 CN CN201820821342.3U patent/CN208189613U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" | ||
| CP03 | "change of name, title or address" |
Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee after: Atlas sunshine Power Group Co.,Ltd. Patentee after: Changshu Artes Sunshine Power Technology Co.,Ltd. Address before: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee before: CSI SOLAR POWER GROUP Co.,Ltd. Patentee before: Changshu Artes Sunshine Power Technology Co.,Ltd. |