CN204928743U - Collection flow box and photovoltaic module power generation system - Google Patents
Collection flow box and photovoltaic module power generation system Download PDFInfo
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- CN204928743U CN204928743U CN201520700374.4U CN201520700374U CN204928743U CN 204928743 U CN204928743 U CN 204928743U CN 201520700374 U CN201520700374 U CN 201520700374U CN 204928743 U CN204928743 U CN 204928743U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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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 collection flow box and photovoltaic module power generation system, wherein, the flow box that converges includes: a plurality of direct -current input branch roads, the positive negative input end of each direct -current input branch road is used for being connected with a photovoltaic module's positive and negative output, the busbar, the positive negative input end of busbar is connected with the positive and negative output of a plurality of direct -current input branch roads respectively for with the multichannel signal of telecommunication of a plurality of direct -current input branch roads output signal of telecommunication all the way that converges to become, and output circuit, output circuit's positive negative input end is connected with the positive and negative output of busbar respectively for the signal of telecommunication of the same kind after will converging is exported. The utility model discloses reducible among the photovoltaic module power generation system quantity of cable and the complexity of wiring, furtherly has also improved the security.
Description
Technical field
The utility model relates to photovoltaic module technical field, specifically, relates to a kind of header box and photovoltaic module electricity generation system.
Background technology
Along with the development of new forms of energy, heliotechnics as a kind of new energy technology of clean environment firendly be widely used in automobile, electronic product, etc. in every field, wherein, also comprise and utilize heliotechnics to carry out the photo-voltaic power generation station generated electricity.
In a big-and-middle-sized photovoltaic plant, the enormous amount of the equipment such as assembly and inverter, the cost of the auxiliary facility of cable itself and cabling can be very high, a large amount of cable laid that interts also can cause a lot of inconvenience to power plant maintenance personnel, needs to install a kind of equipment confluxed to save the consumption of cable; In addition, in big-and-middle-sized photovoltaic plant, power station is exposed on wide place, photovoltaic module is made easily to be subject to the impact of outdoor environment, the environmental factors such as such as thunder and lightning, can make assembly overvoltage cause the damage of assembly even to scrap, cause huge economic loss to user, therefore, the lightning protection of photovoltaic module is also a problem of can not ignore in the design in power station.
For the problems referred to above in correlation technique, at present solution effectively is not yet proposed.
Utility model content
The utility model provides a kind of header box and photovoltaic module electricity generation system, needs to use a large amount of cable in big-and-middle-sized photovoltaic module electricity generation system at least to solve prior art, causes cost high and the problem of the complicated not easy-maintaining of wiring.
Additional aspect of the present utility model and advantage will partly be set forth in the following description, and partly will become obvious from description, or can the acquistion by practice of the present utility model.
According to an aspect of the present utility model, provide a kind of header box, comprising: multiple direct current input branch road, the positive-negative input end of each direct current input branch road is used for being connected with the positive-negative output end of a photovoltaic module; Bus-bar, the positive-negative output end that the positive-negative input end of bus-bar inputs branch road with multiple direct current is respectively connected, and confluxes into a road signal of telecommunication for the multi-channel electric signal exported by multiple direct current input branch road; And output circuit, the positive-negative input end of output circuit is connected with the positive-negative output end of bus-bar respectively, and for confluxing, the Hou mono-road signal of telecommunication exports.
In an optional embodiment, direct current input branch road comprises: positive-negative input end, for being connected with the positive-negative output end of photovoltaic module; And fuse, the positive-negative input end of fuse is by cable and positive-negative input end sub-connection, and the positive-negative output end of fuse is connected with the positive-negative input end of bus-bar by cable.
In an optional embodiment, output circuit comprises: circuit breaker, and the positive-negative input end of circuit breaker is connected with the positive-negative output end of bus-bar; And positive-negative output end, be connected with the positive-negative output end of circuit breaker.
In an optional embodiment, output circuit also comprises: lightning protection device, and the positive-negative input end of lightning protection device is connected with the positive-negative output end of bus-bar respectively; And earth terminal, be connected with the earth terminal of lightning protection device by cable, for connecting earth signal.
In an optional embodiment, bus-bar is closed anti-electricity-theft terminal.
In an optional embodiment, circuit breaker is the four-pole circuit breaker of both positive and negative polarity series connection.
In an optional embodiment, positive-negative input end, positive-negative output end are sub, earth terminal is waterproof terminal.
In an optional embodiment, header box also comprises: casing, and the base plate of casing is provided with board slot, and multiple direct current input branch road, bus-bar, output circuit are arranged at the board slot position of the base plate of casing.
In an optional embodiment, casing is the casing of insulation.
According to another aspect of the present utility model, provide a kind of photovoltaic module electricity generation system, comprise photovoltaic module, the header box of said structure, and inverter, be connected with the output circuit of header box, for the converting direct-current power into alternating-current power that output circuit is exported.
In the utility model, in photovoltaic module electricity generation system, without the need to using a large amount of cables, only the positive-negative output end of multiple photovoltaic module need be connected to positive-negative input end of header box, the earth terminal of header box is carried out ground connection, by the positive-negative input end of the positive-negative output end of header box access rectifier, photovoltaic module can be realized and to power generating, greatly reduce the consumption of cable and the complexity of wiring in photovoltaic module electricity generation system.In addition, in header box internal circuit, be provided with lightning protection device, fuse and circuit breaker, safe protection can be carried out to photovoltaic module generating, improve fail safe.
Accompanying drawing explanation
Describe its example embodiment in detail by referring to accompanying drawing, above-mentioned and further feature of the present utility model and advantage will become more obvious.
Fig. 1 is the optional structured flowchart of one of header box of the present utility model;
Fig. 2 is the optional electrical wiring schematic diagram of one of header box of the present utility model;
Fig. 3 is the schematic diagram of a kind of optional interior layout of header box of the present utility model;
Fig. 4 is the optional bottom schematic view of one of header box of the present utility model; And
Fig. 5 is the optional back panel wiring schematic diagram of one of header box of the present utility model.
Wherein, description of reference numerals is as follows:
1-inputs waterproof terminal, 2-input cable, 3-fuse, the closed anti-electricity-theft terminal of 4-, 5-fixture, 6 board slots, 7-lightning protection device, 8-circuit breaker, 9-ground connection lead-out terminal, 10-cable output end, 11-ground connection output cable, 12-output cable (positive pole), 13-exports waterproof terminal, and 14-ground connection exports waterproof terminal, 15-header box base plate, 16-header box casing, 17-output cable (negative pole), 102-direct current input branch road, 104-bus-bar, 106-output circuit.
Embodiment
More fully example embodiment is described referring now to accompanying drawing.But example embodiment can be implemented in a variety of forms, and should not be understood to be limited to execution mode set forth herein; On the contrary, these execution modes are provided to make the utility model comprehensively with complete, and the design of example embodiment will be conveyed to those skilled in the art all sidedly.Reference numeral identical in the drawings represents same or similar structure, thus will omit the repeated description to them.
Described feature, structure or characteristic can be combined in one or more execution mode in any suitable manner.In the following description, provide many details thus provide fully understanding execution mode of the present utility model.But one of ordinary skill in the art would recognize that, what do not have in specific detail is one or more, or adopts other method, constituent element, material etc., also can put into practice the technical solution of the utility model.In other cases, known features, material or operation is not shown specifically or describes to avoid fuzzy the utility model.
Embodiment 1
In the utility model preferred embodiment 1, provide a kind of header box, Fig. 1 illustrates the optional structured flowchart of the one of this header box, and as shown in Figure 1, header box comprises the input of multiple direct current branch road 102, bus-bar 104 and output circuit 106.
During specific implementation, the positive-negative input end of multiple each direct current of direct current input branch road 102 input branch road 102 is used for being connected with the positive-negative output end of a photovoltaic module; The positive-negative output end that the positive-negative input end of bus-bar 104 inputs branch road 102 with multiple direct current is respectively connected, and conflux into a road signal of telecommunication for the multi-channel electric signal exported by multiple direct current input branch road, preferably, bus-bar is closed anti-electricity-theft terminal; The positive-negative input end of output circuit 106 is connected with the positive-negative output end of bus-bar respectively, and for confluxing, the Hou mono-road signal of telecommunication exports.
In the process realizing photovoltaic module generating, photovoltaic module each in multiple photovoltaic module can be accessed respectively a direct current input branch road 102 of header box, the electrode input end of the direct current input branch road 102 of the cathode output end access header box of photovoltaic module, the negative input of the direct current input branch road 102 of the cathode output end access header box of photovoltaic module; Then, the positive-negative output end of output circuit 106 is connected to next unit device (as inverter) and carries out current conversion, the generating that can realize photovoltaic module is powered.This circuit connecting mode by header box, greatly reduces the consumption of cable and the complexity of wiring in photovoltaic module electricity generation system.
As the optional execution mode of one, direct current input branch road 102 comprises: positive-negative input end and fuse, this positive-negative input end is used for being connected with the positive-negative output end of photovoltaic module, the positive-negative input end of this fuse is by cable and positive-negative input end sub-connection, and the positive-negative output end of fuse is connected with the positive-negative input end of bus-bar respectively by input cable.Preferably, in the utility model during photovoltaic module access header box, the branch road that each photovoltaic module is corresponding all can be connected to a fuse.
Above-mentioned preferred embodiment in; by increasing fuse in each direct current input branch road; ensure that this branch road exceedes fuse rating at the signal of telecommunication of voltage or electric current, fuse disconnect thus cut off circuit, protection photovoltaic module and header box internal circuit in other equipment from damage.
As the optional execution mode of one, output circuit 106 comprises: circuit breaker and positive-negative output end, and the positive-negative input end of this circuit breaker is connected with the positive-negative output end of bus-bar respectively, and positive-negative output end is connected with the positive-negative output end of circuit breaker respectively.Preferably, when in the utility model, each branch road carries out signal output after confluxing, positive pole exports and negative pole exports the four-pole circuit breaker accessing both positive and negative polarity series connection respectively.
Above-mentioned preferred embodiment in, by arranging circuit breaker in output circuit, can realize safe cut-offfing circuit, convenient for maintaining personnel overhaul circuit, in emergency circumstances disconnect circuit at other meanwhile, improve the coefficient of safety of circuit.
Of the present utility model one preferred embodiment in, also further optimization is carried out to above-mentioned header box, specifically, output circuit 106 also comprises: lightning protection device and earth terminal, and the positive-negative input end of this lightning protection device is connected with the positive-negative output end of bus-bar respectively; Earth terminal is connected with the earth terminal of lightning protection device by cable, for connecting earth signal.
Above-mentioned preferred embodiment in, by arranging lightning protection device in output circuit, the harm that the high-voltage large current of thunder and lightning causes equipment such as inverters in photovoltaic module and system can be prevented, ensureing the safety of circuit under thunder and lightning environment.
Embodiment 2
Based on the header box provided in above-described embodiment 1, provide a kind of photovoltaic module electricity generation system in the present embodiment, this system comprises one or more photovoltaic module, header box, and inverter.Wherein, inverter, is connected with the output circuit of header box, for the converting direct-current power into alternating-current power exported by output circuit.
Fig. 2 illustrates the optional electrical wiring schematic diagram of the one of the header box of native system, as shown in Figure 2, and the branch road of the totally six positive negative inputs in tunnel, in each branch road, input cable 2 connects a road fuse 3, connect circuit breaker 8 after confluxing, then parallel connection connects lightning protection device 7, then pick out header box through output cable 17.
Fig. 3 is the schematic diagram of a kind of optional interior layout of the header box of native system, in figure 3, shared 3 board slots 6, be screwed in respectively on the base of header box, nethermost the right and left is fuse 3, and centre is that cable output end 10 and ground connection lead-out terminal 9 fixture 5 clip; The middle part of header box is 2 closed anti-electricity-theft terminals 4, is used to conflux; Topmost the left side is lightning protection device 7, and the upper right corner is circuit breaker 8, and these components and parts are all be fixed on board slot 6 by the draw-in groove of bottom.
Fig. 4 is the optional bottom schematic view of one of the header box of native system, and the bottom of header box is input waterproof terminal 1 and exports waterproof terminal 13, ground connection output waterproof terminal 14, is used for accessing or picking out cable and earth connection.
Fig. 5 is the optional back panel wiring schematic diagram of one of the header box of native system; in Figure 5; photovoltaic module accesses fuse 3 by input waterproof terminal 1; each road connects a fuse 3; fuse 3 accesses circuit breaker 8 after closed anti-electricity-theft terminal 4 confluxes, and after picking out again after cable output end 10, after output waterproof terminal 13 picks out header box, connects inverter; in order to prevent thunderbolt from causing damage to circuit, therefore by protective circuit in lightning protection device 7 place in circuit.When the electric current and voltage in photovoltaic module is excessive, fuse 3 can fuse, thus protects the equipment in whole circuit; When needs open circuit overhauls, circuit breaker 8 is disconnected rear maintenance, the personal safety of maintainer can be ensured.
Can find out from the above description, in the utility model in photovoltaic module electricity generation system, without the need to using a large amount of cables, only the positive-negative output end of multiple photovoltaic module need be connected to positive-negative input end of header box, the earth terminal of header box is carried out ground connection, by the positive-negative input end of the positive-negative output end of header box access rectifier, photovoltaic module generating can be realized, greatly reduce the consumption of cable and the complexity of wiring in photovoltaic module electricity generation system.In addition, in header box internal circuit, be provided with lightning protection device, fuse and circuit breaker, safe protection can be carried out to photovoltaic module generating, improve fail safe.
Below illustrative embodiments of the present utility model is illustrate and described particularly.Should be appreciated that, the utility model is not limited to disclosed execution mode, and on the contrary, the utility model intention contains the various amendment and equivalent replacement that comprise within the scope of the appended claims.
Claims (10)
1. a header box, is characterized in that, comprising:
Multiple direct current input branch road, described in each, the positive-negative input end of direct current input branch road is used for being connected with the positive-negative output end of a photovoltaic module;
Bus-bar, the positive-negative output end that the positive-negative input end of described bus-bar inputs branch road with described multiple direct current is respectively connected, and confluxes into a road signal of telecommunication for the multi-channel electric signal exported by described multiple direct current input branch road; And
Output circuit, the positive-negative input end of described output circuit is connected with the positive-negative output end of described bus-bar respectively, for being exported by the described road signal of telecommunication after confluxing.
2. header box as claimed in claim 1, is characterized in that, described direct current input branch road comprises:
Positive-negative input end, for being connected with the positive-negative output end of described photovoltaic module; And
Fuse, the positive-negative input end of described fuse is by cable and described positive-negative input end sub-connection, and the positive-negative output end of described fuse is connected by the positive-negative input end of cable with described bus-bar.
3. header box as claimed in claim 2, it is characterized in that, described output circuit comprises:
Circuit breaker, the positive-negative input end of described circuit breaker is connected with the positive-negative output end of described bus-bar; And
Positive-negative output end, is connected with the positive-negative output end of described circuit breaker.
4. header box as claimed in claim 3, it is characterized in that, described output circuit also comprises:
Lightning protection device, the positive-negative input end of described lightning protection device is connected with the positive-negative output end of described bus-bar respectively; And
Earth terminal, is connected, for connecting earth signal by the earth terminal of cable with described lightning protection device.
5. header box as claimed in claim 1, it is characterized in that, described bus-bar is closed anti-electricity-theft terminal.
6. header box as claimed in claim 3, it is characterized in that, described circuit breaker is four-pole circuit breaker.
7. header box as claimed in claim 4, is characterized in that, described positive-negative input end, described positive-negative output end, described earth terminal are waterproof terminal.
8. header box as claimed in claim 1, is characterized in that, also comprise:
Casing, the base plate of described casing is provided with board slot, and described multiple direct current input branch road, described bus-bar, output circuit are arranged at the board slot position of the base plate of described casing.
9. header box as claimed in claim 8, is characterized in that, described casing is the casing of insulation.
10. a photovoltaic module electricity generation system, is characterized in that, comprises photovoltaic module, the header box described in any one of claim 1-9, and
Inverter, is connected with the output circuit of described header box, for the converting direct-current power into alternating-current power exported by described output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520700374.4U CN204928743U (en) | 2015-09-10 | 2015-09-10 | Collection flow box and photovoltaic module power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520700374.4U CN204928743U (en) | 2015-09-10 | 2015-09-10 | Collection flow box and photovoltaic module power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204928743U true CN204928743U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520700374.4U Expired - Fee Related CN204928743U (en) | 2015-09-10 | 2015-09-10 | Collection flow box and photovoltaic module power generation system |
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| Country | Link |
|---|---|
| CN (1) | CN204928743U (en) |
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2015
- 2015-09-10 CN CN201520700374.4U patent/CN204928743U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20200910 |
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| CF01 | Termination of patent right due to non-payment of annual fee |