CN204721305U - Photovoltaic module - Google Patents
Photovoltaic module Download PDFInfo
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- CN204721305U CN204721305U CN201520337777.7U CN201520337777U CN204721305U CN 204721305 U CN204721305 U CN 204721305U CN 201520337777 U CN201520337777 U CN 201520337777U CN 204721305 U CN204721305 U CN 204721305U
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- Prior art keywords
- battery strings
- photovoltaic module
- busbar
- terminal box
- backboard
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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 provides a kind of photovoltaic module, and it comprises some being parallel to each other and the backboard of the battery strings extended longitudinally respectively and the described battery strings of carrying.The sensitive surface that some battery strings longitudinally become two row to be symmetrically distributed in backboard forms some unit groups be sequentially connected in series.Described battery strings has longitudinally near the outer end of back plate edges and the inner near backboard middle position.Each unit group is included in outer end and adopts the first busbar to be connected in series and be disposed adjacent side by side two string battery strings.Photovoltaic module also comprises the some terminal boxes be arranged on described backboard shady face, terminal box transversely interval arranges and is longitudinally positioned at the middle position of described backboard, two string battery strings in each unit group are made to share a described terminal box, be provided with diode in terminal box, two string battery strings the inners in each unit group are connected to positive pole and the negative pole of corresponding diodes inside terminal box respectively.Effectively can solve the wiring challenge of busbar thus.
Description
Technical field
The utility model relates to solar energy generation technology field, the photovoltaic module that particularly a kind of structure is simple and easily manufactured.
Background technology
Photovoltaic module is as the core component in solar photovoltaic generation system, and the battery component formed by lamination, terminal box and other external connecting function modules form.This external connecting function module can be used to the device realizing current conversion, as inverter.Wherein, described battery component is formed through lamination by glass, packaging adhesive film, the combination of battery tandem and backboard.The combination of battery tandem includes some battery tandems linked together by busbar.The battery tandem that present stage is most widely used normally is connected in series by the cell piece of several full slice systems.
But, because the loss of the cell piece of full slice system is higher, thus also engender some battery components be made up of half chip cell piece, the cell piece of this kind half chip is compared to the cell piece of full slice system, electric current can reduce one times, thus effectively reduces the power loss of photovoltaic module.But, in prior art, it is single-gang junction box that the photovoltaic module no matter with full slice system or half chip cell piece all adopts, for preventing hot spot, each battery tandem all needs to connect corresponding busbar of drawing to be connected to the diode in terminal box, as the configuration shows of photovoltaic module 100 ＇ in accompanying drawing 1, because diode concentrated setting is in same terminal box 11, after battery strings 12 is connected in parallel by busbar, still need to adopt the mode of busbar fly line the both positive and negative polarity of battery strings 12 to be connected to the two ends of respective diode in terminal box 11, thus, busbar is extended longer, and also need to adopt insulation strip to carry out insulation between multiple busbar and cell piece to arrange, and then make the wire laying mode of busbar in whole photovoltaic module 100 ＇ comparatively complicated, manufacture comparatively loaded down with trivial details.
Therefore, be necessary to provide a kind of photovoltaic module of improvement to solve the problem.
Utility model content
The utility model object is to provide a kind of structure simple and the photovoltaic module easily that connects up.
For realizing above-mentioned utility model object, the utility model provides a kind of photovoltaic module, comprise some being parallel to each other and the backboard of the battery strings extended longitudinally respectively and the described battery strings of carrying, the sensitive surface that some described battery strings longitudinally become two row to be symmetrically distributed in described backboard forms some unit groups be sequentially connected in series, battery strings described in each has longitudinally near the outer end of back plate edges and the inner near backboard middle position, unit group described in each is included in outer end and adopts the first busbar to be connected in series and be disposed adjacent side by side two string battery strings, described photovoltaic module also comprises the some terminal boxes be arranged on described backboard shady face, described terminal box transversely interval arranges and is longitudinally positioned at the middle position of described backboard, two string battery strings in each unit group are made to share a described terminal box, diode is provided with in described terminal box, two string battery strings the inners in each unit group aforementioned are connected to positive pole and the negative pole of corresponding diodes inside terminal box respectively.
As further improvement of the utility model, two unit groups symmetrical in two row share a described terminal box, be provided with two the described diodes oppositely arranged in terminal box described in each, two described diodes are connected in parallel two described unit groups respectively.
As further improvement of the utility model, described photovoltaic module also comprises the second busbar being transversely connected in series adjacent two unit groups in each row, it is inner that described second busbar specifically connects the two string battery strings be disposed adjacent in adjacent two unit groups, and all battery strings in often arranging all are sequentially connected in series.
As further improvement of the utility model, the second busbar being connected in series adjacent cells group in different lines is longitudinally arranged at interval.
As further improvement of the utility model, described photovoltaic module also comprises the 3rd busbar, and the two row battery strings longitudinally distributed are connected in series by the 3rd busbar in the inner, and the 3rd busbar and the second busbar transversely interval are arranged.
As further improvement of the utility model, described battery strings has longitudinally symmetrically arranged initiating terminal battery strings and tail end battery strings, described photovoltaic module also comprises the 4th busbar connecting initiating terminal battery strings and tail end battery strings the inner respectively, described photovoltaic module also comprises the some wiring holes running through backboard and be electrically connected for battery strings and terminal box, described wiring hole is distributed in the middle position longitudinally between symmetrically arranged two unit groups respectively, described battery strings is by described second busbar, 3rd busbar and the 4th busbar are each passed through described wiring hole and are connected to corresponding terminal box.
As further improvement of the utility model, described battery strings has the initiating terminal battery strings and tail end battery strings that are connected in series, described terminal box comprises the output end wiring box be connected with tail end battery strings with initiating terminal battery strings, and described photovoltaic module also comprises the positive wire and cathode conductor of drawing from output end wiring box.
As further improvement of the utility model, battery strings of often going here and there adopts interconnecting strip to be in series by some cell piece unit, and described cell piece unit comprises at least two equal and opposite in directions and the sub-pieces be mutually connected in series that are formed after waiting point cutting.
As further improvement of the utility model, in described photovoltaic module, to arrange the unit group quantity formed with every row battery strings corresponding identical for the quantity of terminal box.
As further improvement of the utility model, described photovoltaic module also comprises packaging adhesive film and glass cover-plate, and described battery strings is fixed between backboard and glass cover-plate by packaging adhesive film.
The beneficial effects of the utility model are: by the battery strings in photovoltaic module being two row symmetry arrangement and forming some unit groups be sequentially connected in series, simultaneously on backboard shady face, middle position longitudinally arranges several terminal boxes, the two string battery strings be connected in series in each unit group are so made to share a described terminal box, thus make battery strings can be connected to diode in corresponding terminal box nearby, and then make the utility model photovoltaic module on the basis preventing hot spot phenomenon, connect up more simple, and then simplify the overall structure of photovoltaic module and easily manufactured, also the energy loss on busbar can be reduced further, promote power output.
Accompanying drawing explanation
Fig. 1 is the structural representation of photovoltaic module in prior art;
Fig. 2 is the three-dimensional exploded view of the utility model photovoltaic module;
Fig. 3 is the enlarged drawing irising out part in Fig. 2;
Fig. 4 is the connection diagram of battery strings and terminal box in the utility model photovoltaic module;
Fig. 5 is the rearview of the utility model photovoltaic module.
Embodiment
Below with reference to execution mode shown in the drawings, the utility model is described in detail.But this execution mode does not limit the utility model, the structure that those of ordinary skill in the art makes according to this execution mode, method or conversion functionally are all included in protection range of the present utility model.
Please refer to Fig. 2 to the better embodiment that Figure 5 shows that the utility model photovoltaic module 100.Described photovoltaic module 100 comprises the battery component and some terminal boxes 5 that are formed by glass cover-plate 1, packaging adhesive film 2, battery strings combination and backboard 4 lamination.Described terminal box 5 is arranged on backboard 4, and combines with battery strings and be connected.
Please refer to shown in Fig. 2 to Fig. 4, described battery strings combination comprises some being parallel to each other and the busbar 32 of the battery strings 31 extended longitudinally respectively together with some described battery strings 31 being sequentially connected in series.Described battery strings 31 is fixed between glass cover-plate 1 and backboard 4 by packaging adhesive film 2.
The sensitive surface that some described battery strings 31 longitudinally become two row to be symmetrically distributed in described backboard 4 forms some unit groups 33 be sequentially connected in series.Unit group 33 described in each comprise mutually be connected in series and be disposed adjacent side by side two string described battery strings 31.Described busbar 32 comprise the adjacent two string battery strings 31 be transversely connected in series in each unit group 33 the first busbar 321, be transversely connected in series adjacent two unit groups 33 in each row the second busbar 322, be longitudinally connected in series the 3rd busbar 323 of two row battery strings 31.
Battery strings 31 described in each has longitudinally near the outer end at backboard 4 edge and the inner near backboard 4 middle position.In the present embodiment, described first busbar 321 connects the outer end being arranged on described battery strings 31.It is inner that described second busbar 322 is specifically connected to the two string battery strings 31 be disposed adjacent in adjacent two unit groups 33, and the battery strings 31 in often arranging all is sequentially connected in series.It is inner that described 3rd busbar 323 is specifically connected in two row the two string battery strings 31 being transversely positioned at a lateral edges, this two strings battery strings 31 is longitudinally symmetrical arranged, and forms to make all battery strings 31 in the utility model the structure first transversely, more longitudinally, be then transversely sequentially connected in series.In addition, the second busbar 322 being connected in series adjacent cells group 33 in different lines is longitudinally arranged at interval.3rd busbar 323 and the second busbar 322 are transversely arranged at interval.
In addition, described battery strings 31 is also included in the initiating terminal battery strings and tail end battery strings that are transversely positioned at opposite side edge in two row, described initiating terminal battery strings and tail end battery strings are also longitudinally symmetrical arranged, and described busbar 32 also comprises the 4th busbar 324 being connected to initiating terminal battery strings and tail end battery strings the inner.
The utility model photovoltaic module 100 comprises multiple described terminal box 5 be arranged on described backboard 4 shady face.Described terminal box 5 transversely interval arranges and is longitudinally positioned at the middle position of described backboard 4, and the longitudinal middle position making some described terminal boxes 5 correspond to two row battery strings 31 along photovoltaic module 100 thickness direction is arranged.Several Split type connecting boxes 5 being arranged on backboard 4 middle position are changed into by the single-gang junction box being arranged on backboard one end in prior art.Thus, in each unit group 33 two string battery strings 31 can be made can to share a described terminal box 5.Be provided with diode 51 in described terminal box 5, two string battery strings 31 the inners in each unit group 33 aforementioned can be connected to positive pole and the negative pole of diode 51 in corresponding terminal box 5 respectively nearby.
Particularly, described photovoltaic module 100 also comprises the some wiring holes 41 running through backboard 4 and be electrically connected for battery strings 31 and terminal box 5, and described wiring hole 41 is distributed in the middle position longitudinally between symmetrically arranged two unit groups 33 respectively.Described battery strings 31 is connected to corresponding terminal box 5 respectively by making the second busbar 322, the 3rd busbar 323 and the 4th busbar 324 through described wiring hole 41.The connected mode of the arrangement of this kind of terminal box 5 in the utility model and itself and battery strings 31, effectively can reduce the development length of the busbar 32 being connected to terminal box 5, and without the need to the layout of unnecessary insulation strip (not shown), the utility model photovoltaic module 100 overall routing mode can be simplified, also can reduce the energy loss on busbar further, promote power output.
Refer to shown in Fig. 4 and Fig. 5, because described terminal box 5 being longitudinally arranged at the middle position of described backboard 4 in the utility model, namely the longitudinal middle position making terminal box 5 correspond to two row battery strings 31 along photovoltaic module 100 thickness direction is arranged, thus can oppositely be provided with two diodes 51 in terminal box 5 described in each in present embodiment, make two unit groups 33 symmetrical in two row can share a described terminal box 5; Namely in two row, two symmetrical unit groups 33 are connected in parallel with two diodes 51 in same terminal box 5 respectively.
In some battery strings 31 of the present utility model, it is equal and adopt some cell piece unit 310 of being mutually connected in series of interconnecting strip 311 that described battery strings 31 of often going here and there includes quantity.For reducing power loss, in the present embodiment, described cell piece unit 310 comprises two equal and opposite in directions and the sub-pieces 3101,3102 be connected in series that are formed after cutting of halving, and sub-pieces 3101,3102 is of a size of 1/2 of conventional batteries sheet in prior art, all sub-pieces 3101,3102 in each battery strings 31 are connected in series.Certainly, cutting of halving is not limited to the cutting of cell piece, also can carries out trisection, quartering cutting according to application demand.
Please refer to shown in Fig. 4, as an embodiment of the present utility model, battery strings 31 of often going here and there is connected in series by the sub-pieces 3101,3102 of 10 half chips.Often row include 6 string battery strings 31, and totally 12 string battery strings 31, are called battery strings a to battery strings l.Correspondingly, in present embodiment, often row battery strings 31 is formed with 3 unit groups 33, and correspondence is provided with three described terminal boxes 5, and namely the quantity of described terminal box 5 is corresponding with unit group 33 quantity that every row battery strings 31 is formed is arranged.
Concrete connected mode also can refer to shown in Fig. 4, is connected successively by battery strings a to battery strings l.Wherein, the battery strings f, the g that are transversely positioned at wherein side edge in two row are longitudinally connected by the 3rd busbar 323, after battery strings a, b in first unit group 33 first adopt the first busbar 321 to connect, again the positive terminal of battery strings a is connected with the negative pole of one of them diode 51 in the terminal box 5 of its side by the 4th busbar 324, the negative pole end of battery strings b is connected with the positive pole of this diode 51 by the second busbar 322, complete the action that battery strings a, b are in parallel with diode 51 like this.Complete battery strings c, d equally again, battery strings e, f, battery strings g, h, battery strings i, j, battery strings k, l respectively with being connected in parallel of other diodes 51.As can be seen here, in present embodiment, battery strings 31 all can adopt the mode connected to complete to connect up with terminal box 5 and be connected nearby, makes overall routing simple, convenient.
In addition, from the above, battery strings a and l is respectively initiating terminal battery strings a in the present embodiment and tail end battery strings l.Described terminal box 5 comprises the output end wiring box 50 be connected with tail end battery strings l with initiating terminal battery strings a.Described photovoltaic module 100 also comprises the positive wire 52 and cathode conductor 53 of drawing from output end wiring box 50.
In summary, the utility model is by being two row symmetry arrangement by the battery strings 31 in photovoltaic module 100 and forming some unit groups 33 be sequentially connected in series, simultaneously on backboard 4 shady face, middle position longitudinally arranges several terminal boxes 5, the two string battery strings 31 be connected in series in each unit group 33 are so made to share a described terminal box 5, and then make battery strings 31 can be connected to diode 51 in corresponding terminal box 5 nearby, and then make the utility model photovoltaic module 100 on the basis preventing hot spot phenomenon, busbar 32 connects up more simple, and then simplify the overall structure of photovoltaic module 100 and easily manufactured.In addition, adopt the cell piece unit 310 of half chip in the utility model, its output current is the half of full slice system solar battery sheet, thus effectively reduces the power loss of described photovoltaic module 100 inside.
Be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, technical scheme in each execution mode also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility execution mode of the present utility model; they are also not used to limit protection range of the present utility model, all do not depart from the utility model skill equivalent implementations of doing of spirit or change all should be included within protection range of the present utility model.
Claims (10)
1. a photovoltaic module, comprise some being parallel to each other and the backboard of the battery strings extended longitudinally respectively and the described battery strings of carrying, it is characterized in that: the sensitive surface that some described battery strings longitudinally become two row to be symmetrically distributed in described backboard forms some unit groups be sequentially connected in series, battery strings described in each has longitudinally near the outer end of back plate edges and the inner near backboard middle position, unit group described in each is included in outer end and adopts the first busbar to be connected in series and be disposed adjacent side by side two string battery strings, described photovoltaic module also comprises the some terminal boxes be arranged on described backboard shady face, described terminal box transversely interval arranges and is longitudinally positioned at the middle position of described backboard, two string battery strings in each unit group are made to share a described terminal box, diode is provided with in described terminal box, two string battery strings the inners in each unit group aforementioned are connected to positive pole and the negative pole of corresponding diodes inside terminal box respectively.
2. photovoltaic module according to claim 1, it is characterized in that: two unit groups symmetrical in two row share a described terminal box, be provided with two the described diodes oppositely arranged in terminal box described in each, two described diodes are connected in parallel two described unit groups respectively.
3. photovoltaic module according to claim 1, it is characterized in that: described photovoltaic module also comprises the second busbar being transversely connected in series adjacent two unit groups in each row, it is inner that described second busbar specifically connects the two string battery strings be disposed adjacent in adjacent two unit groups, and all battery strings in often arranging all are sequentially connected in series.
4. photovoltaic module according to claim 3, is characterized in that: the second busbar being connected in series adjacent cells group in different lines is longitudinally arranged at interval.
5. photovoltaic module according to claim 3, it is characterized in that: described photovoltaic module also comprises the 3rd busbar, the two row battery strings longitudinally distributed are connected in series by the 3rd busbar in the inner, and the 3rd busbar and the second busbar transversely interval are arranged.
6. photovoltaic module according to claim 5, it is characterized in that: described battery strings has longitudinally symmetrically arranged initiating terminal battery strings and tail end battery strings, described photovoltaic module also comprises the 4th busbar connecting initiating terminal battery strings and tail end battery strings the inner respectively, described photovoltaic module also comprises the some wiring holes running through backboard and be electrically connected for battery strings and terminal box, described wiring hole is distributed in the middle position longitudinally between symmetrically arranged two unit groups respectively, described battery strings is by described second busbar, 3rd busbar and the 4th busbar are each passed through described wiring hole and are connected to corresponding terminal box.
7. photovoltaic module according to claim 1, it is characterized in that: described battery strings has the initiating terminal battery strings and tail end battery strings that are connected in series, described terminal box comprises the output end wiring box be connected with tail end battery strings with initiating terminal battery strings, and described photovoltaic module also comprises the positive wire and cathode conductor of drawing from output end wiring box.
8. photovoltaic module according to claim 1, it is characterized in that: battery strings of often going here and there adopts interconnecting strip to be in series by some cell piece unit, described cell piece unit comprises at least two equal and opposite in directions and the sub-pieces be mutually connected in series that are formed after waiting point cutting.
9. photovoltaic module according to claim 1, is characterized in that: in described photovoltaic module, to arrange the unit group quantity formed with every row battery strings corresponding identical for the quantity of terminal box.
10. photovoltaic module according to claim 1, is characterized in that: described photovoltaic module also comprises packaging adhesive film and glass cover-plate, and described battery strings is fixed between backboard and glass cover-plate by packaging adhesive film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520337777.7U CN204721305U (en) | 2015-05-22 | 2015-05-22 | Photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520337777.7U CN204721305U (en) | 2015-05-22 | 2015-05-22 | Photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204721305U true CN204721305U (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520337777.7U Active CN204721305U (en) | 2015-05-22 | 2015-05-22 | Photovoltaic module |
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| CN (1) | CN204721305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328764A (en) * | 2016-08-30 | 2017-01-11 | 江阴鑫辉太阳能有限公司 | Semi-piece assembly stringing and laminating method |
-
2015
- 2015-05-22 CN CN201520337777.7U patent/CN204721305U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328764A (en) * | 2016-08-30 | 2017-01-11 | 江阴鑫辉太阳能有限公司 | Semi-piece assembly stringing and laminating method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215300 Suzhou high tech Zone, Jiangsu, Lu Shan Road, No. 199 Co-patentee after: Changshu Canadian Solar Inc. Patentee after: Artes sunshine Power Group Co. Ltd. Address before: 215300 Suzhou high tech Zone, Jiangsu, Lu Shan Road, No. 199 Co-patentee before: Changshu Canadian Solar Inc. Patentee before: Canadian (China) Investment Co., Ltd. |
|
| 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. |