CN206907783U - A kind of two-sided photovoltaic module - Google Patents
A kind of two-sided photovoltaic module Download PDFInfo
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- CN206907783U CN206907783U CN201720408260.1U CN201720408260U CN206907783U CN 206907783 U CN206907783 U CN 206907783U CN 201720408260 U CN201720408260 U CN 201720408260U CN 206907783 U CN206907783 U CN 206907783U
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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 two-sided photovoltaic module, and it includes multiple double-side cell pieces, the laterally adjacent double-side cell piece it is positive oppositely arranged, and the adjacent double-side cell piece is welded to form battery strings by welding.The two-sided photovoltaic module, by by laterally adjacent double-side cell piece in cascade process, adjacent double-side cell piece is oppositely arranged, so when being welded by welding, because welding is needed the dissimilar electrode connection of adjacent double-side cell piece, therefore welding only needs to put adjacent double-side cell piece welding, welding as welding manner of the prior art without being bent, so that the welding process of welding becomes simple, improve welding efficiency, and because same welding is welded in homonymy, battery has been reduced or avoided in list, welding is to stress caused by cell piece during series welding, reduce battery and hidden split occurs, the probability of fragmentation, improve welding quality.
Description
Technical field
Photovoltaic module technical field is the utility model is related to, more particularly to a kind of two-sided photovoltaic module.
Background technology
With energy crisis, the continuous aggravation of environmental pollution, while making rapid progress for science and technology causes making for new energy
Declined to a great extent with cost, while the supplement as traditional energy, its proportion is also increasing, and in new energy
Photovoltaic generation also obtains more and more extensive application.Photovoltaic generation be the photovoltaic effect using interface and by the sun
A kind of generation technology of electric energy can be directly translated into.What the technology utilized is reproducible solar energy, safely can in power generation process
Lean on, noiseless, environmental pollution will not be caused, and do not limited by resource distribution region, there is vast potential for future development, current light
Volt, which generates electricity, has been subjected to the extensive concern of countries in the world, and photovoltaic industry also has been developed as a new industry.
Photovoltaic cell mainly has crystal silicon battery and hull cell at present, wherein the crystal silicon battery as main flow can be divided into list
Face battery and double-side cell.Conventional one side battery is usually the boundary of n+/p types structure made of p-type silicon material, p layers and n-layer
P-n junction is just formed at face, n-layer top heavy doping n+ layers are made in battery front side as emitter stage as negative pole, p layers in cell backside
For positive pole, one side battery only has front to receive light, produces electric energy.And the double-side cell of main flow is usually that n-type is two-sided at present
Battery, different from conventional P-type battery, its structure is P++/n/n++ types.P++ layers are in battery front side as positive pole, and n++ layers are in electricity
As negative pole, positive and negative has passivating film at the pond back side, and metal electrode is completed by silk-screen printing, and positive and negative grid line structure is all conventional
H- types.Therefore, not only front can absorb light to double-side cell, and its back side can also absorb light so as to produce additional power.With skill
The development of art, battery positive and negative efficiency are possible to close, and turning into a kind of has higher efficiency battery.
Series connection, the typesetting of existing double-side cell are connected using the positive and negative of one side battery, type-setting mode, such as Fig. 1
It is shown.Because double-side cell piece 1 is relatively thin, when positive and negative is used in series the welding of welding 2, welding can produce stress, electricity to cell piece
Pond easily produce it is hidden split, fragmentation situations such as.
Utility model content
The purpose of this utility model there is provided a kind of two-sided photovoltaic module, improve cell piece in two-sided photovoltaic device process
The single, efficiency of series welding technique, and reduce cell piece it is hidden split, the probability of fragmentation.
In order to solve the above technical problems, the utility model embodiment provides a kind of two-sided photovoltaic module, including it is multiple double
Face cell piece, the laterally adjacent double-side cell piece it is positive oppositely arranged, and by welding by the adjacent two-sided electricity
Pond piece welds to form battery strings.
Wherein, the quantity of the double-side cell piece of the adjacent battery strings is equal.
Wherein, longitudinally adjacent multiple battery strings are connected in series by busbar.
Wherein, longitudinally adjacent multiple battery strings are connected in parallel by busbar.
Wherein, in addition to terminal box, multiple battery strings are connected after connecting with the Diode series of the terminal box.
Wherein, the quantity of the battery strings is even number, and the positive pole and negative pole drawn after multiple battery strings connections are located at
The homonymy of the battery strings.
Wherein, the generating efficiency of the front and back of the double-side cell piece is equal.
The two-sided photovoltaic module that the utility model embodiment is provided, compared with prior art, there is advantages below：
The two-sided photovoltaic module that the utility model embodiment provides, including multiple double-side cell pieces, laterally adjacent is described
Double-side cell piece it is positive oppositely arranged, and the adjacent double-side cell piece is welded to form battery strings by welding.
The two-sided photovoltaic module, by by laterally adjacent double-side cell piece in cascade process, adjacent two-sided electricity
Pond piece is oppositely arranged, so when being welded by welding, because welding is needed the dissimilar electrode company of adjacent double-side cell piece
Connect, therefore welding only needs to put adjacent double-side cell piece welding, welding without as welding manner of the prior art that
Sample is bent so that and the welding process of welding becomes simple, improves welding efficiency, and because same welding is in homonymy
Welding, battery welding during list, series welding, which has been reduced or avoided, to stress caused by cell piece, it is hidden to reduce battery generation
Split, the probability of fragmentation, improve welding quality.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the series connection composing structure schematic diagram of two-sided photovoltaic module of the prior art；
Fig. 2 is a kind of structural representation of the embodiment for the two-sided photovoltaic module that the utility model embodiment provides
Figure；
Fig. 3 is that a kind of composing structure of the embodiment for the two-sided photovoltaic module that the utility model embodiment provides shows
It is intended to.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 2~Fig. 3 is refer to, Fig. 2 is a kind of specific implementation for the two-sided photovoltaic module that the utility model embodiment provides
The structural representation of mode；Fig. 3 is a kind of embodiment for the two-sided photovoltaic module that the utility model embodiment provides
Composing structure schematic diagram.
In a kind of embodiment, the two-sided photovoltaic module, including multiple double-side cell pieces 10, it is laterally adjacent
The double-side cell piece 10 it is positive oppositely arranged, and the adjacent double-side cell piece 10 is welded to form electricity by welding 20
Go here and there in pond.
Pass through double-side cell adjacent in oppositely arranged battery strings so that in welding process, welding 20 need not carry out curved
Song, so allows for double-side cell list, series welding process becomes simple, improves welding efficiency, and because same welding 20 is
Welded in the homonymy of battery strings, battery welding 20 during list, series welding has been reduced or avoided and, to stress caused by cell piece, has subtracted
Lacked battery occur it is hidden split, the probability of fragmentation, improve welding quality.
Due to the fixation of the size of uniform photovoltaic module, in order to enter neat arrangement, both make it that photovoltaic module was beautiful
See, also cause photovoltaic module to accommodate most double-side cell pieces 10 as far as possible, improve light-receiving area, therefore, the adjacent electricity
The quantity of the double-side cell piece 10 of pond string is equal, and the manufacture of such battery strings can also standardize, and improve manufacture efficiency, reduces
Manufacturing cost.
Can be to be connected or multiple battery strings in parallel, i.e., longitudinally adjacent between multiple battery strings
It can be connected in series by busbar, longitudinally adjacent multiple battery strings can also be connected in parallel by busbar, this reality
This is not especially limited with new, the quantity of the double-side cell piece 10 in battery strings is not especially limited.
In the utility model, double-side cell piece 10 can be n-type double-side cell piece 10 or p-type double-side cell
Piece 10, the utility model is not especially limited to this.
The structure of double-side cell piece 10 that the utility model collects is glass-encapsulating material-cell piece-encapsulating material-glass
Interlayer structure, without installation frame, wherein glass is that photovoltaic is generally photovoltaic EVA adhesive film with safety glass, encapsulating material,
Cell piece is double-side cell piece 10.
In one embodiment of the present utility model, the manufacturing process of photovoltaic module is by just by the cell piece of predetermined quantity
Up, the back side upward, face-up, the back side upward ... successively interval line up battery strings, pass through welding 20 between cell piece
Single weldering, series welding, heating that the front electrode of preceding a piece of battery is connected with the rear a piece of negative electrode of battery welds together, due to phase
The positive direction of adjacent cell piece is opposite, therefore in the welding process of welding 20,20 need of welding are placed horizontally in adjacent cell
On piece, without as in the prior art, welding is needed because the front of all cell pieces all faces upward or downward, during welding
20 bendings connect different electrode, and so allowing for welding process becomes simple, welding 20 by that analogy, by the battery of slices
Piece, which is together in series, forms battery strings；Then by after the battery strings typesetting being welded, diode in busbar and terminal box etc. is passed through
Series connection, positive and negative electrode is drawn, then photovoltaic module is ultimately formed by a series of establishment of component techniques.
Therefore, the two-sided photovoltaic module also includes terminal box, after multiple battery strings connections with the terminal box
Diode series connect.
In order that obtaining circuit connection becomes succinct, the producing efficiency of photovoltaic module, the positive pole and negative pole of photovoltaic module are improved
Position it is preferably closer to the distance, therefore the quantity of the battery strings is even number, the positive pole drawn after multiple battery strings connections
It is located at the homonymy of the battery strings with negative pole.
It is pointed out that the two-sided photovoltaic module that the utility model embodiment provides, for the quantity of battery strings, for
The quantity of cell piece in battery strings is not specifically limited.
Because the generating efficiency of the front and back of existing double-side cell piece 10 is different, general positive generating efficiency is big
Generating efficiency in the back side so that using in the welding manner of prior art, the generating efficiency of two-sided photovoltaic module can reach
Maximum, in order to reduce welding difficulty, while improving welding quality and welding efficiency, improve the generating effect of two-sided photovoltaic module
Rate, the generating efficiency of the front and back of the double-side cell piece 10 is equal, so will not be because of the discovery of double-side cell piece 10
Set and the generating efficiency of whole two-sided photovoltaic module is caused to decline.
It is pointed out that the utility model is not done specifically for the generating efficiency of the front and back of double-side cell piece 10
Limit.
In summary, the two-sided photovoltaic module that the utility model embodiment provides, by by laterally adjacent double-side cell
For piece in cascade process, adjacent double-side cell piece is oppositely arranged, so when being welded by welding, because welding is needed phase
The dissimilar electrode connection of adjacent double-side cell piece, therefore welding only needs to put adjacent double-side cell piece welding, welding without
It need to be bent as welding manner of the prior art so that the welding process of welding becomes simple, improves welding effect
Rate, and because same welding is welded in homonymy, battery welding during list, series welding has been reduced or avoided cell piece is produced
Raw stress, reduce battery occur it is hidden split, the probability of fragmentation, improve welding quality.
Two-sided photovoltaic module provided by the utility model is described in detail above.It is used herein specifically individual
Example is set forth to principle of the present utility model and embodiment, and the explanation of above example is only intended to help and understands this reality
With new method and its core concept.It should be pointed out that for those skilled in the art, this is not being departed from
On the premise of utility model principle, some improvement and modification can also be carried out to the utility model, these are improved and modification also falls
Enter in the protection domain of the utility model claims.
Claims (7)
- A kind of 1. two-sided photovoltaic module, it is characterised in that including multiple double-side cell pieces, the laterally adjacent double-side cell piece It is positive oppositely arranged, and the adjacent double-side cell piece is welded to form battery strings by welding.
- 2. two-sided photovoltaic module as claimed in claim 1, it is characterised in that the number of the double-side cell piece of the adjacent battery strings Measure equal.
- 3. two-sided photovoltaic module as claimed in claim 2, it is characterised in that longitudinally adjacent multiple battery strings are by confluxing Bar is connected in series.
- 4. two-sided photovoltaic module as claimed in claim 2, it is characterised in that longitudinally adjacent multiple battery strings are by confluxing Bar is connected in parallel.
- 5. the two-sided photovoltaic module as described in claim 3 or 4, it is characterised in that also including terminal box, multiple battery series windings The rear Diode series with the terminal box are connect to be connected.
- 6. two-sided photovoltaic module as claimed in claim 5, it is characterised in that the quantity of the battery strings is even number, multiple described The positive pole and negative pole drawn after battery strings connection are located at the homonymy of the battery strings.
- 7. two-sided photovoltaic module as claimed in claim 6, it is characterised in that the generating of the front and back of the double-side cell piece Efficiency is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720408260.1U CN206907783U (en) | 2017-04-18 | 2017-04-18 | A kind of two-sided photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720408260.1U CN206907783U (en) | 2017-04-18 | 2017-04-18 | A kind of two-sided photovoltaic module |
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| Publication Number | Publication Date |
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| CN206907783U true CN206907783U (en) | 2018-01-19 |
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ID=61290386
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| CN201720408260.1U Active CN206907783U (en) | 2017-04-18 | 2017-04-18 | A kind of two-sided photovoltaic module |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878568A (en) * | 2018-06-20 | 2018-11-23 | 晶科能源科技（海宁）有限公司 | A kind of the series welding structure and method of double-sided solar battery component |
| CN109449229A (en) * | 2018-12-20 | 2019-03-08 | 苏州腾晖光伏技术有限公司 | A kind of imbrication photovoltaic module |
| CN109659384A (en) * | 2018-11-16 | 2019-04-19 | 中建材浚鑫科技有限公司 | Component edition type design method for double-side cell |
| CN110416320A (en) * | 2019-07-30 | 2019-11-05 | 苏州迈展自动化科技有限公司 | A kind of no main grid photovoltaic module |
| CN111200036A (en) * | 2020-01-13 | 2020-05-26 | 任建丽 | Arrangement mode of photovoltaic cells in crystalline silicon photovoltaic cell assembly |
| CN111200037A (en) * | 2020-01-13 | 2020-05-26 | 任建丽 | Connection mode of photovoltaic cell in crystalline silicon photovoltaic cell assembly |
| CN111366456A (en) * | 2018-12-25 | 2020-07-03 | 泰州隆基乐叶光伏科技有限公司 | Method for testing mechanical load capacity of battery piece |
| CN111451657A (en) * | 2020-01-13 | 2020-07-28 | 任建丽 | Series welding method for photovoltaic cell string in crystalline silicon photovoltaic cell assembly |
| CN111755570A (en) * | 2020-06-17 | 2020-10-09 | 无锡先导智能装备股份有限公司 | Battery string lamination method, battery string preparation device and series welding equipment |
| CN112186059A (en) * | 2020-08-31 | 2021-01-05 | 晶澳（扬州）太阳能科技有限公司 | Photovoltaic module and preparation method and application thereof |
| WO2021120655A1 (en) * | 2019-12-17 | 2021-06-24 | 杭州福斯特应用材料股份有限公司 | Double-sided cell assembly structure |
| CN113084408A (en) * | 2021-04-16 | 2021-07-09 | 科圣达(苏州)智能科技有限公司 | Series welding equipment and double-sided battery piece series welding method |
| WO2023050906A1 (en) * | 2021-09-28 | 2023-04-06 | 中国华能集团清洁能源技术研究院有限公司 | Internal tandem-type battery piece photovoltaic assembly and packaging structure manufacturing method |
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2017
- 2017-04-18 CN CN201720408260.1U patent/CN206907783U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878568A (en) * | 2018-06-20 | 2018-11-23 | 晶科能源科技（海宁）有限公司 | A kind of the series welding structure and method of double-sided solar battery component |
| CN109659384A (en) * | 2018-11-16 | 2019-04-19 | 中建材浚鑫科技有限公司 | Component edition type design method for double-side cell |
| CN109449229A (en) * | 2018-12-20 | 2019-03-08 | 苏州腾晖光伏技术有限公司 | A kind of imbrication photovoltaic module |
| CN109449229B (en) * | 2018-12-20 | 2023-12-15 | 苏州腾晖光伏技术有限公司 | Shingled photovoltaic module |
| CN111366456A (en) * | 2018-12-25 | 2020-07-03 | 泰州隆基乐叶光伏科技有限公司 | Method for testing mechanical load capacity of battery piece |
| CN111366456B (en) * | 2018-12-25 | 2024-02-09 | 芜湖隆基光伏科技有限公司 | Method for testing mechanical load capacity of battery piece |
| CN110416320A (en) * | 2019-07-30 | 2019-11-05 | 苏州迈展自动化科技有限公司 | A kind of no main grid photovoltaic module |
| WO2021120655A1 (en) * | 2019-12-17 | 2021-06-24 | 杭州福斯特应用材料股份有限公司 | Double-sided cell assembly structure |
| CN111451657A (en) * | 2020-01-13 | 2020-07-28 | 任建丽 | Series welding method for photovoltaic cell string in crystalline silicon photovoltaic cell assembly |
| CN111200037A (en) * | 2020-01-13 | 2020-05-26 | 任建丽 | Connection mode of photovoltaic cell in crystalline silicon photovoltaic cell assembly |
| CN111200036A (en) * | 2020-01-13 | 2020-05-26 | 任建丽 | Arrangement mode of photovoltaic cells in crystalline silicon photovoltaic cell assembly |
| CN111755570A (en) * | 2020-06-17 | 2020-10-09 | 无锡先导智能装备股份有限公司 | Battery string lamination method, battery string preparation device and series welding equipment |
| CN112186059A (en) * | 2020-08-31 | 2021-01-05 | 晶澳（扬州）太阳能科技有限公司 | Photovoltaic module and preparation method and application thereof |
| CN113084408A (en) * | 2021-04-16 | 2021-07-09 | 科圣达(苏州)智能科技有限公司 | Series welding equipment and double-sided battery piece series welding method |
| WO2023050906A1 (en) * | 2021-09-28 | 2023-04-06 | 中国华能集团清洁能源技术研究院有限公司 | Internal tandem-type battery piece photovoltaic assembly and packaging structure manufacturing method |
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