CN202549886U - Photovoltaic junction box - Google Patents
Photovoltaic junction box Download PDFInfo
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- CN202549886U CN202549886U CN2012201456107U CN201220145610U CN202549886U CN 202549886 U CN202549886 U CN 202549886U CN 2012201456107 U CN2012201456107 U CN 2012201456107U CN 201220145610 U CN201220145610 U CN 201220145610U CN 202549886 U CN202549886 U CN 202549886U
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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
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- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model relates to a photovoltaic junction box which comprises one or more acquisition modules for acquiring the data of a photovoltaic substring and a data processing module for analyzing the data of the received photovoltaic substring, wherein the acquisition module comprises one or more data connecting ports; the data processing module comprises data connecting ports corresponding to the data connecting ports of the acquisition module; data connection pins are arranged in the data connecting ports; and the data processing module is connected with the acquisition module in such a manner that the data connecting pins are inserted into the data connecting ports. The photovoltaic junction box has the advantages that as the acquisition module is connected with the data processing module in an inserting manner, an external data connecting line is saved, the configuration of the photovoltaic junction box is simplified, and the production cost is reduced; and on the other hand, the change of the junction box, caused when additional photovoltaic substrings are arranged, is simplified in an inserting manner, so that the practicability and the universality of the junction box are improved.
Description
Technical field
The utility model relates to the Application of Solar Energy field, particularly a kind of photovoltaic header box.
Background technology
Photovoltaic is the abbreviation of solar photovoltaic generation system, is a kind of photovoltaic effect of utilizing the solar cell semi-conducting material, solar radiation can directly be converted into a kind of new-generation system of electric energy.
In solar photovoltaic generation system, header box be can use, photovoltaic header box, solar energy header box, photovoltaic array lightning protection header box etc. had another name called.The photovoltaic header box is together in series some, photovoltaic cell that specification is identical; Form photovoltaic tandem one by one; And then with several photovoltaic tandem parallel connection access header boxs; After in header box, confluxing, through controller, DC power distribution cabinet, photovoltaic DC-to-AC converter, AC power distribution cabinet/AC distribution panel etc., thereby supporting use constitutes complete photovoltaic generating system.
In the prior art, the layout of header box normally is connected in series on same plane, and usually in header box the front end of fuse or rear end increase monitoring element, and then conflux away.Granted publication number has illustrated a kind of photovoltaic array header box in the one Chinese patent application of CN201708732U, and with reference to shown in Figure 1, this photovoltaic array header box comprises: anodal busbar 7, cathode bus bar 8, fuse 1, circuit breaker 6; Each road anodal (S1+ as shown in fig. 1, S2+) of photovoltaic array is connected in parallel to anodal busbar 7 respectively with after a fuse 1, counnter attack diode 2 are connected, and each road negative pole (S1-as shown in fig. 1, S2-) is connected in parallel to cathode bus bar 8 respectively with after a fuse 1 is connected; The multichannel positive pole of photovoltaic array or multichannel negative pole after the busbar parallel connection through circuit breaker 6 output (S as shown in fig. 1 is total+, S is total-).
Continuation is with reference to figure 1; Said header box also comprises contactless dc current measurement device; Current sensor 4 and current detection module 5 as shown in fig. 1; Each road positive pole of photovoltaic array or each road negative pole are connected with a current sensor 4 respectively, and the signal of current sensor 4 is sent to current detection module 5.In addition, this header box also comprises lightning protection device 3, anodal busbar 7 is electrically connected respectively with the respective terminal of said lightning protection device 3 with cathode bus bar 8, thereby makes this photovoltaic array header box possess the function of anti-thunderbolt.
But each device is independent layout in the header box as shown in Figure 1; Thereby often make in the header box disorderly and unsystematicly, the header box of different size is arranged and is often had a long way to go, the consequence that causes be exactly the size of header box have multiple and size bigger; Wiring is more complicated also; Thereby cause relatively difficulty of newly-increased photovoltaic substring, more to the change of header box, constructional difficulties.On the other hand, owing to have multiple header box, and the specification of each header box is all inequality, thus make that the versatility of header box is bad; And make header box in application, have certain waste, production cost is also than higher.
In order to utilize the header box space biglyyer, also there is the way that increases header box thickness, adopt the way that builds up, make header box can increase the input way more.Fig. 2 shows the structural representation of the another kind of embodiment of prior art photovoltaic header box.
Particularly, please refer to Fig. 2, the importation of said photovoltaic header box is installed in the header box 20 at least two direct currents pcb board (printed circuit board) assembly unit 10 that confluxes side by side.When direct current confluxes pcb board assembly unit 10 when being two, two direct currents pcb board assembly unit 10 that confluxes only need be installed side by side, connect the positive pole and the negative pole of direct input respectively with a ground; When the direct current pcb board assembly unit 10 that confluxes is two when above, the conflux quantity of pcb board assembly unit 10 of the direct current that needs to install simultaneously is multiples of two; Conflux pcb board assembly unit 10 of two above direct currents is installed is adopted the fixed form of lamination up and down, and interleaved between two-layer, be convenient to the pcb board wiring.
But the integrated level of photovoltaic header box shown in Figure 2 is not high, and when increasing the photovoltaic substring, changes still very greatly, and the circuit that relates to is a lot, troublesome poeration, and operability is not strong.
Therefore, how to improve the versatility of header box and reduce cost and just become one of those skilled in the art's problem demanding prompt solution.
The utility model content
The problem that the utility model solves provides a kind of photovoltaic header box, with versatility and the integrated intelligent property that improves header box effectively, and reduces its production cost effectively.
For addressing the above problem, the utility model provides a kind of photovoltaic header box, comprising: one or more acquisition modules that are used to gather the data of photovoltaic substring; A data processing module that is used for the data of the photovoltaic substring that receives are carried out analyzing and processing; Said acquisition module comprises one or more data connecting holes; Said data processing module comprises and the corresponding data connecting hole of the data connecting hole of said acquisition module; Wherein, be provided with data in the said data connecting hole and connect pin, said data processing module connects through said data connecting hole is connected pin with data grafting with acquisition module.
Alternatively, said acquisition module comprises: fuse, counnter attack diode and be used to detect the electric current of said photovoltaic substring, and detected current data is transferred to the current detection circuit of data processing module; One end of said fuse connects the lead-out terminal of photovoltaic substring, and the other end connects an end of counnter attack diode; The other end of said counnter attack diode connects the input terminal of photovoltaic substring.
Alternatively, said current detection circuit comprises current sensor.
Alternatively, said data processing module comprises: A/D converting unit, processor unit; Said A/D converting unit connects said acquisition module and processor unit, be used for the data that acquisition module collects are changed, and the transfer of data after will changing is to processor unit; The data of said processor unit after to the conversion that receives are carried out analyzing and processing.
Alternatively, said data processing module also comprises: be used for data storage cell that the data that processor unit receives are stored, said data storage cell connection processing device unit.
Alternatively, said data processing module also comprises: be used for the display unit that the analysis processing result with processor unit shows, said demonstration connects said processor unit.
Alternatively, said data processing module also comprises the RS485 communication interface that is used to carry out transfer of data.
Alternatively, carry out communication through the Modbus communications protocol between said acquisition module and the said data processing module.
Alternatively, said photovoltaic header box also comprises circuit breaker; Said circuit breaker connects by the molecular anodal line concentration row of the input of said photovoltaic substring with by the molecular negative pole line concentration row of its output.
Alternatively, said photovoltaic header box also comprises Surge Protector; Said Surge Protector connects by the molecular anodal line concentration row of the input of said photovoltaic substring with by the molecular negative pole line concentration row of its output.
Compared with prior art, the photovoltaic header box of the utility model has the following advantages at least:
1) data processing module of the utility model photovoltaic header box is connected through inserting mode with acquisition module, and is connected the grafting realization acquisition module of pin and the transfer of data between the data processing module with data by the data connecting hole.Thereby avoided carrying out message transmission, made that the wiring of this photovoltaic header box is simple, dwindled the size of photovoltaic header box simultaneously through a large amount of aerial lugs.
2) acquisition module of the utility model photovoltaic header box adopts inserting mode to be connected with data processing module; Thereby can under different installation situation, freely increase and decrease the quantity of photovoltaic substring; Improve the application of photovoltaic header box, and reduced its cost effectively.
3) layout pattern of the utility model photovoltaic header box has been realized modularization, integrated.Quantity through the acquisition module of increase pegging graft just can the photovoltaic substring route, and do not need to change in addition other element of header box, thereby improved the versatility and the integrated intelligent property of photovoltaic header box.
4) carry out communication through the Modbus communications protocol between the acquisition module of the utility model photovoltaic header box and the data processing module, thus realized and different system between mutual communication, thereby improved the practicality of this photovoltaic header box further.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of photovoltaic header box in the prior art;
Fig. 2 is the structural representation of the another kind of embodiment of photovoltaic header box in the prior art;
Fig. 3 is the structural representation of a kind of embodiment of the utility model photovoltaic header box;
Fig. 4 is a kind of structural representation of acquisition module among Fig. 3;
Fig. 5 is a kind of structural representation of data processing module among Fig. 3;
Fig. 6 is the connected mode sketch map of acquisition module and data processing module among Fig. 3;
Fig. 7 is the principle schematic of photovoltaic header box shown in Figure 3.
Embodiment
Described in background technology, there is multiple device in the photovoltaic header box of prior art, and these device independence layouts, thereby under the more situation of photovoltaic substring, the layout in the case is disorderly and unsystematic; When needs increase the photovoltaic substring, also can be owing to factors such as the device that needs increase is more, and layout is unreasonable cause performance difficulty.In addition, because the layout disunity of header box makes that the header box specification of different model, different manufacturers is different, thereby has reduced its versatility.
The photovoltaic header box of the utility model; Adopt modular layout; It comprises acquisition module and data processing module; Said acquisition module and data processing module are connected the pin laggard data transfer of pegging graft through corresponding data connecting hole with data, connect thereby saved a large amount of outsides, have not only reduced production cost but also the size of having dwindled the photovoltaic header box greatly; On the other hand, easy to operate when making increase photovoltaic substring through this inserting mode, only need correspondingly to increase an acquisition module of pegging graft and get final product, other change be need not carry out, thereby the practicality and the versatility of this photovoltaic header box improved.
For above-mentioned purpose, the feature and advantage that make the utility model can be more obviously understandable, the embodiment of the utility model is done detailed explanation below in conjunction with accompanying drawing.
Set forth detail in the following description so that make much of the utility model.But the utility model can be different from alternate manner described here and implements with multiple, and those skilled in the art can do similar popularization under the situation of the utility model intension.Therefore the utility model does not receive the restriction of following disclosed embodiment.
Fig. 3 shows the structural representation of a kind of embodiment of the utility model photovoltaic header box.With reference to figure 3, said photovoltaic header box comprises: the negative input 100 and the header box protective grounding 200 of header box shell 800, data processing module 500, a plurality of acquisition module 600, photovoltaic system.Said data processing module 500 adopts the mode of pegging graft to be connected with acquisition module 600.
Said acquisition module 600 is used to gather the data of photovoltaic substring, and with the transfer of data that collects to data processing module 500; The data of the photovoltaic substring that 500 pairs of said data processing modules receive are carried out analyzing and processing.Electrode input end of photovoltaic substring is formed anodal line concentration row, and its negative input is formed negative pole line concentration row; Busbar wire 700 shown in said anodal line concentration row and the negative pole line concentration row composition diagram 3.
In the present embodiment, the quantity of said acquisition module 600 is 14, and data processing module 500 is one.Certainly, in other embodiments, the quantity of the photovoltaic substring that also can conflux as required increases or reduces the quantity of said acquisition module 600, and it should not limit the protection range of the utility model.
Fig. 4 shows a kind of structural representation of acquisition module in the present embodiment.With reference to figure 4, said acquisition module 600 comprises: fuse a, counnter attack diode c and current detection circuit f.
Wherein, the end of said fuse a connects the lead-out terminal h of photovoltaic substring, and the other end connects the end of counnter attack diode c; The other end of said counnter attack diode c connects the sub-d of negative input of photovoltaic substring; Said current detection circuit f is used to detect the electric current of said photovoltaic substring, and detected current data is transferred to data processing module 500.
Continuation is with reference to figure 4, and said acquisition module 600 is arranged on the bracket base e, and said acquisition module 600 also comprises data connecting hole b, comprises among the said data connecting hole b that data connect pin g.Said acquisition module 600 promptly connects the grafting and the transfer of data of pin g realization and data processing module 500 through said data connecting hole b and data wherein.
Particularly, in the present embodiment, said current detection circuit f can comprise current sensor, is used for the data of photovoltaic substring are detected and gather.Said current detection circuit f can be formed on the pcb board through prior art, and said current sensor can adopt any one current sensor in the prior art, and it should not limit the protection range of the utility model.
In the present embodiment, said acquisition module 600 adopts modularized designs, not only standard the layout of each device, but also saved arrangement space, be convenient to improve the versatility of photovoltaic header box.
Fig. 5 shows a kind of structural representation of data processing module in the present embodiment.With reference to figure 5, said data processing module 500 comprises: A/D converting unit (not shown), processor unit k.
Wherein, said A/D converting unit connects said acquisition module 600 and processor unit k, and the data that are used for acquisition module 600 is collected are carried out mould/number conversion, and the transfer of data after will changing is to processor unit k; The data of said processor unit k after to the conversion that receives are carried out analyzing and processing.
Continuation is with reference to figure 5, and in the present embodiment, said data processing module 500 can also comprise: display unit i; Said display unit i connects said processor unit k, is used for the analysis processing result of processor unit k is shown.In the present embodiment, said display unit i is a LCD, and certainly in other embodiments, said display unit i can also adopt other display unit, and it should not limit the protection range of the utility model.
Continuation is with reference to figure 5, and said data processing module 500 can also comprise: data connecting hole b comprises among the said data connecting hole b that data connect the pin (not shown).Said data connecting hole b is corresponding with the data connecting hole b in the acquisition module 600 shown in Figure 4, to realize the grafting between these two modules.
In the present embodiment, said data processing module 5 is arranged on the bracket base e; And said data processing module 500 can also comprise RS485 communication interface m.Data processing module 500 can carry out communication to realize data interaction through the said RS485 communication interface m system different with other.Said data processing module 500 system different with other can adopt the Modbus communications protocol when carrying out communication, thereby improves the practicality of photovoltaic header box.
Need to prove that in other embodiments, said data processing module 500 can also comprise data storage cell.Said data storage cell can connection processing device unit k, and data that are used for processor unit k is received or the analysis processing result of processor unit k are stored.Said data storage cell can adopt any one storage device in the prior art, Flash memory or the like for example, and it should not limit the protection range of the utility model.
Fig. 6 shows the connected mode sketch map between the acquisition module 600 and data processing module 500 in the present embodiment.With reference to shown in Figure 6, said acquisition module 600 is realized pegging graft through corresponding data connecting hole with data processing module 500, and connects the transmission that pin has been realized data through the data in the data connecting hole.In this mode, when increasing the way of photovoltaic substring, the quantity that only needs to increase the acquisition module 600 of pegging graft gets final product, and does not need to carry out other change again, thereby makes that the installation of photovoltaic header box is very simple, convenient; And this inserting mode has also been saved the volume of photovoltaic header box greatly.
In the present embodiment, after said acquisition module 600 and data processing module 500 were pegged graft and installed, it can carry out communication through the Modbus communications protocol.
With reference to figure 3, the photovoltaic header box of present embodiment also comprises Surge Protector 300 and circuit breaker 400 again.Said Surge Protector 300 arranges with the corresponding respectively molecular anodal line concentration of input that is connected the photovoltaic substring of circuit breaker 400 and the molecular negative pole line concentration of output of photovoltaic substring is arranged.
In the present embodiment, Surge Protector is similar in the structure of said Surge Protector 300 and operation principle and the prior art, so repeat no more at this.Said circuit breaker 400 can adopt any one dc circuit breaker in the prior art, certainly, in other embodiments, also can adopt the circuit breaker of other types according to actual needs, and it should not limit the protection range of the utility model.
Fig. 7 shows the principle schematic of photovoltaic header box in the present embodiment.With reference to figure 7, acquisition module 600 of the corresponding respectively connection of the electrode input end of each photovoltaic substring (INPUT 01+～INPUT 14+ as shown in Figure 7); Transfer of data to the data processing module 500 of each photovoltaic substring that said acquisition module 600 will collect is analyzed and is handled by 500 pairs of data of said data processing module.
The electrode input end of each photovoltaic substring compiles the back and forms anodal line concentration row 110, and the negative input of each photovoltaic substring (INPUT 01-～INPUT 14-as shown in Figure 7) compiles the back and forms negative pole line concentration row 120; Surge Protector 300 is connected said anodal line concentration row 110 and negative pole line concentration row 120 with circuit breaker 400 difference correspondences.Through forming cathode output end OUTPUT+ and cathode output end OUTPUT-behind the said photovoltaic header box.
Need to prove; The structure of photovoltaic header box is not limited to illustrating of present embodiment; In other embodiments; Can do simple deformation to the layout of each module and assembly as required, and can increase or reduce each assembly or type of module or quantity in the photovoltaic header box according to actual needs.
Though the utility model with preferred embodiment openly as above; But it is not to be used for limiting the utility model; Any those skilled in the art are in spirit that does not break away from the utility model and scope; Can utilize the method and the technology contents of above-mentioned announcement that the utility model technical scheme is made possible change and modification, therefore, every content that does not break away from the utility model technical scheme; To any simple modification, equivalent variations and modification that above embodiment did, all belong to the protection range of the utility model technical scheme according to the technical spirit of the utility model.
Claims (10)
1. a photovoltaic header box is characterized in that, comprising: one or more acquisition modules that are used to gather the data of photovoltaic substring; A data processing module that is used for the data of the photovoltaic substring that receives are carried out analyzing and processing; Said acquisition module comprises one or more data connecting holes; Said data processing module comprises and the corresponding data connecting hole of the data connecting hole of said acquisition module; Wherein, be provided with data in the said data connecting hole and connect pin, said data processing module connects through said data connecting hole is connected pin with data grafting with acquisition module.
2. photovoltaic header box as claimed in claim 1; It is characterized in that; Said acquisition module comprises: fuse, counnter attack diode and be used to detect the electric current of said photovoltaic substring, and detected current data is transferred to the current detection circuit of data processing module; One end of said fuse connects the lead-out terminal of photovoltaic substring, and the other end connects an end of counnter attack diode; The other end of said counnter attack diode connects the input terminal of photovoltaic substring.
3. photovoltaic header box as claimed in claim 2 is characterized in that said current detection circuit comprises current sensor.
4. photovoltaic header box as claimed in claim 1 is characterized in that, said data processing module comprises: A/D converting unit, processor unit; Said A/D converting unit connects said acquisition module and processor unit, be used for the data that acquisition module collects are changed, and the transfer of data after will changing is to processor unit; The data of said processor unit after to the conversion that receives are carried out analyzing and processing.
5. photovoltaic header box as claimed in claim 4 is characterized in that, said data processing module also comprises: be used for data storage cell that the data that processor unit receives are stored, said data storage cell connection processing device unit.
6. photovoltaic header box as claimed in claim 4 is characterized in that, said data processing module also comprises: be used for the display unit that the analysis processing result with processor unit shows, said display unit connects said processor unit.
7. photovoltaic header box as claimed in claim 4 is characterized in that, said data processing module also comprises the RS485 communication interface that is used to carry out transfer of data.
8. photovoltaic header box as claimed in claim 1 is characterized in that, carries out communication through the Modbus communications protocol between said acquisition module and the said data processing module.
9. photovoltaic header box as claimed in claim 1 is characterized in that, said photovoltaic header box also comprises circuit breaker; Said circuit breaker connects by the molecular anodal line concentration row of the input of said photovoltaic substring with by the molecular negative pole line concentration row of its output.
10. photovoltaic header box as claimed in claim 1 is characterized in that, said photovoltaic header box also comprises Surge Protector; Said Surge Protector connects by the molecular anodal line concentration row of the input of said photovoltaic substring with by the molecular negative pole line concentration row of its output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201456107U CN202549886U (en) | 2012-04-09 | 2012-04-09 | Photovoltaic junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201456107U CN202549886U (en) | 2012-04-09 | 2012-04-09 | Photovoltaic junction box |
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| Publication Number | Publication Date |
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| CN202549886U true CN202549886U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201456107U Expired - Fee Related CN202549886U (en) | 2012-04-09 | 2012-04-09 | Photovoltaic junction box |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092949A (en) * | 2014-05-19 | 2015-11-25 | 北京人民电器厂有限公司 | Plastic shell type current acquisition module for photovoltaic combiner box |
| WO2015176577A1 (en) * | 2014-05-20 | 2015-11-26 | 北京人民电器厂有限公司 | Miniature photovoltaic combiner box |
| CN107294487A (en) * | 2017-07-11 | 2017-10-24 | 奥特斯维能源（太仓）有限公司 | A kind of header box |
| CN109038247A (en) * | 2017-06-12 | 2018-12-18 | 天津市中力防雷技术有限公司 | Light current module and power distribution cabinet |
| CN111313827A (en) * | 2020-03-13 | 2020-06-19 | 许昌许继风电科技有限公司 | Direct current collection flow box |
-
2012
- 2012-04-09 CN CN2012201456107U patent/CN202549886U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092949A (en) * | 2014-05-19 | 2015-11-25 | 北京人民电器厂有限公司 | Plastic shell type current acquisition module for photovoltaic combiner box |
| WO2015176577A1 (en) * | 2014-05-20 | 2015-11-26 | 北京人民电器厂有限公司 | Miniature photovoltaic combiner box |
| CN109038247A (en) * | 2017-06-12 | 2018-12-18 | 天津市中力防雷技术有限公司 | Light current module and power distribution cabinet |
| CN107294487A (en) * | 2017-07-11 | 2017-10-24 | 奥特斯维能源（太仓）有限公司 | A kind of header box |
| CN111313827A (en) * | 2020-03-13 | 2020-06-19 | 许昌许继风电科技有限公司 | Direct current collection flow box |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130409 |