CN201985131U - Photovoltaic array lightning-protection header box - Google Patents
Photovoltaic array lightning-protection header box Download PDFInfo
- Publication number
- CN201985131U CN201985131U CN2011200172620U CN201120017262U CN201985131U CN 201985131 U CN201985131 U CN 201985131U CN 2011200172620 U CN2011200172620 U CN 2011200172620U CN 201120017262 U CN201120017262 U CN 201120017262U CN 201985131 U CN201985131 U CN 201985131U
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- China
- Prior art keywords
- header box
- negative electrode
- positive
- circuit breaker
- lightning protection
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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 relates to a photovoltaic array lightning-protection header box, which comprises a quadrupole circuit breaker and a lightning-protection device arranged in the header box, wherein the positive electrode and the negative electrode of each photovoltaic module in a photovoltaic array are respectively converged and then are connected with the positive electrode input end and the negative electrode input end of the quadrupole circuit breaker, the positive electrode input end and the negative electrode input end of the quadrupole circuit breaker are connected with the lightning-protection device, and the positive electrode output end and the negative electrode output end of the quadrupole circuit breaker are respectively led out of the header box through a positive electrode converge output cable and a negative electrode converge output cable. The positive electrode and the negative electrode of the photovoltaic array can be input to the header box through a plurality of paths while output from the header box only through a positive electrode path and a negative electrode path. The photovoltaic array lightning-protection header box provided by the utility model not only can prevent high voltage and large current of lightning from damaging a components array, an inverter and other equipment, but also can enable circuits of a photovoltaic power station to be simplified and a large number of cables to be saved.
Description
Technical field
The utility model relates to the equipment that confluxes in the photovoltaic generating system, can prevent that especially thunder and lightning, anti-overvoltage and overcurrent from causing the apparatus technology of damage to assembly array, specifically is a kind of photovoltaic array lightning protection header box.
Background technology
In a big-and-middle-sized photovoltaic plant, the enormous amount of 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 cables of laying that intert also can cause a lot of inconvenience to the power plant maintenance personnel, need to install a kind of equipment that confluxes to save the consumption of cable; In addition, in big-and-middle-sized photovoltaic plant, the power station is exposed on the wide place, make photovoltaic module be subjected to the sudden strain of a muscle effect that connects of thunder and lightning easily, thunder and lightning can make the assembly overvoltage cause the damage of assembly even scrap, cause enormous economic loss to the user, therefore, the lightning protection of photovoltaic array is a problem of can not ignore in the design in power station.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of high-voltage large current simple in structure, that not only can prevent thunder and lightning equipment such as assembly array and inverter is worked the mischief, and also can make the circuit reduction of photovoltaic plant and save the photovoltaic array lightning protection header box of a large amount of cables.
For solving the problems of the technologies described above, the utility model provides a kind of photovoltaic array lightning protection header box, and it comprises: be located at four-pole circuit breaker and lightning protection device in the header box; Connect the positive and negative electrode input of described four-pole circuit breaker after the positive and negative electrode of each the road photovoltaic module in the photovoltaic array confluxes respectively respectively, the positive and negative electrode input of described four-pole circuit breaker is connected with lightning protection device; The positive and negative electrode output of described four-pole circuit breaker is drawn header box through the positive and negative electrode output cable that confluxes respectively.That is: the positive pole of photovoltaic module and negative pole input header box has a multichannel, and from anodal and the negative pole two-way of having only of header box output.
Further, the positive and negative fuse that extremely is in series with of described each road photovoltaic module.
Further, the bottom of described header box be provided with the input cable of the positive and negative electrode that is used to insert described each road photovoltaic module input waterproof terminal, be used to insert the conflux output waterproof terminal and being used to of output cable of described positive and negative electrode and insert the ground connection output waterproof terminal of the ground cable of described lightning protection device.
Further, the positive and negative extreme series connection fuse of described each road photovoltaic module inserts described four-pole circuit breaker in the back after closed anti-electricity-theft terminal confluxes.
The utlity model has positive effect: (1) photovoltaic array lightning protection of the present utility model header box, can prevent effectively that thunderbolt from causing damage to equipment such as assembly array, inverters, eliminated the potential safety hazard that the high voltage of thunder and lightning causes assembly array, its effect of confluxing can be photovoltaic plant and saves a large amount of cables.The positive pole and the negative pole of string assembly are inserted this equipment respectively, and each road electrode input end and negative input all are connected with fuse, can prevent that overvoltage and overcurrent from causing damage to photovoltaic array and equipment.The both positive and negative polarity input inserts four-pole circuit breaker respectively after conflux, and circuit breaker can be controlled the Kai Heguan of photovoltaic circuit, convenient for maintaining personnel's maintenance and maintenance.Both positive and negative polarity and earth electrode output insert lightning protection device respectively and export this equipment again.This equipment is used for being connected of control appliance of photovoltaic array and control machine room.(2) fuse is housed in casing, prevents that over-voltage and over-current from causing damage to equipment such as assembly and inverters, be connected to lightning protection device in the circuit, can prevent is struck by lightning causes the damage of equipment in the circuit.When (3) implementing, on the base plate in the insulation casing, board slot is fixed in the above, and what fix on board slot is the core circuit of this header box, at first is fuse (containing base and fuse), after picking out from fuse through closed electricity anti-stealing wiring terminal, after binding post confluxes, connect circuit breaker, insert the output waterproof terminal of header box after coming out from breaker connection, connect inverter after the output, at last with lightning protection device and be connected in the back of circuit breaker, the front of output waterproof terminal.Can be fixed on the board slot more than three with upper-part, this equipment that confluxes is installed between assembly array and the inverter.When described described assembly array inserted header box, each string all can be connected to a fuse.When described assembly array was exported header box after confluxing, anodal output and negative pole output inserted the four-pole circuit breaker of both positive and negative polarity series connection respectively.The string number of described positive pole and negative pole assembly input header box has multichannel, and from anodal and the negative pole two-way of having only of header box output.The several assembly array is inserted the input of header box, each road input connects a fuse, if the voltage on this road or electric current surpass the rated value of fuse, the cut-out circuit thereby fuse can fuse has protected other equipment in assembly array and the circuit to avoid damaging; Circuit breaker can safety cut-off circuit, the convenient for maintaining personnel overhaul circuit; Be connected with lightning protection device in the circuit, the harm that the meeting protective circuit is avoided being struck by lightning.In addition, multichannel input output after confluxing, the way of output is much smaller than the way of input, and this has just saved the consumption of cable greatly, thereby has reduced the cost in power station.(4) the beneficial effects of the utility model are, under the prerequisite of the cable consumption that reduces photovoltaic system, protected equipment in assembly array and the circuit to avoid being struck by lightning damage that high voltage causes has also made things convenient for maintenance personal's maintenance.Simple in structure, safe and reliable.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the circuit theory diagrams of the photovoltaic array lightning protection header box among the embodiment;
Fig. 2 is the front view of the photovoltaic array lightning protection header box among Fig. 1;
Fig. 3 is the upward view of the photovoltaic array lightning protection header box among Fig. 1;
Fig. 4 is the cut-away drawing of the photovoltaic array lightning protection header box among Fig. 1.
Reference numeral among the figure: 1--input waterproof terminal, 2--imports cable, FU--fuse, the closed anti-electricity-theft terminal of 4--, 5--fixture, 6--board slot, the 7--lightning protection device, K--four-pole circuit breaker, 9--ground connection lead-out terminal, 10--cable output end, 11--ground connection output cable, the 12--positive pole output cable that confluxes, 13--output waterproof terminal, 14--ground connection output waterproof terminal, 15--header box base plate, 16--header box, the 17-negative pole output cable that confluxes.
Embodiment
See Fig. 1-4, the photovoltaic array lightning protection header box of present embodiment, it comprises: be located at four-pole circuit breaker K and lightning protection device 7 in the header box 16; Connect the positive and negative electrode input of described four-pole circuit breaker K after the positive and negative electrode of each the road photovoltaic module in the photovoltaic array confluxes respectively respectively, the positive and negative electrode input of described four-pole circuit breaker K is connected with lightning protection device 7; The positive and negative electrode output of described four-pole circuit breaker K is drawn header box through the positive and negative electrode output cable 12,17 that confluxes respectively.
The positive and negative fuse FU that extremely is in series with of described each road photovoltaic module.
The bottom of described header box be provided with the input cable 2 of the positive and negative electrode that is used to insert described each road photovoltaic module input waterproof terminal 1, be used to insert the conflux output waterproof terminal 13 and being used to of output cable 12,17 of described positive and negative electrode and insert the ground connection output waterproof terminal 14 of the ground cable of described lightning protection device 7.
The positive and negative extreme series connection fuse FU of described each road photovoltaic module inserts described four-pole circuit breaker K in the back after closed anti-electricity-theft terminal 4 confluxes.
In accompanying drawing 2 header box interior layout figure, shared 3 board slots 6 are fixed on the base of header box with screw respectively, and nethermost the right and left is fuse FU, and the centre is that cable output end 10 and ground connection lead-out terminal 9 usefulness fixtures clip 5; The middle part of header box is 2 closed anti-electricity-theft terminals 4, is used for confluxing; Topmost the left side is a lightning protection device 7, and the upper right corner is a circuit breaker 8, and these components and parts all are that the draw-in groove by the bottom is fixed on the board slot 5
The bottom of header box is that input waterproof terminal 1 and output waterproof terminal 13, ground connection are exported waterproof terminal 14.Be used for inserting or picking out cable and earth connection.
Photovoltaic array inserts fuse FU by input waterproof terminal 1; each road meets a fuse FU; fuse FU inserts circuit breaker 8 after closed anti-electricity-theft terminal 4 confluxes; after picking out again behind cable output end 10; after picking out header box, output waterproof terminal 13 connects inverter; in order to prevent that thunderbolt from causing damage to circuit, so with protective circuit in lightning protection device 7 places in circuit.When the electric current and voltage in the assembly array was excessive, fuse FU can fuse, thereby had protected the equipment in the entire circuit; When the needs open circuit overhauls, circuit breaker 8 is disconnected the back maintenance, can guarantee maintainer's personal safety.
The foregoing description only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection range of the present utility model.
Claims (4)
1. a photovoltaic array lightning protection header box is characterized in that comprising: be located at four-pole circuit breaker (K) and lightning protection device (7) in the header box (16); Connect the positive and negative electrode input of described four-pole circuit breaker (K) after the positive and negative electrode of each the road photovoltaic module in the photovoltaic array confluxes respectively respectively, the positive and negative electrode input of described four-pole circuit breaker (K) is connected with lightning protection device (7); The positive and negative electrode output of described four-pole circuit breaker (K) is drawn header box through the positive and negative electrode output cable (12,17) that confluxes respectively.
2. a kind of photovoltaic array lightning protection header box according to claim 1 is characterized in that: the positive and negative fuse (FU) that extremely is in series with of described each road photovoltaic module.
3. a kind of photovoltaic array lightning protection header box according to claim 2 is characterized in that: the bottom of described header box be provided with the input cable (2) of the positive and negative electrode that is used to insert described each road photovoltaic module input waterproof terminal (1), be used to insert the conflux output waterproof terminal (13) and being used to of output cable (12,17) of described positive and negative electrode and insert the ground connection output waterproof terminal (14) of the ground cable of described lightning protection device (7).
4. a kind of photovoltaic array lightning protection header box according to claim 3 is characterized in that: the positive and negative extreme series connection fuse (FU) of described each road photovoltaic module inserts described four-pole circuit breaker (K) in the back after closed anti-electricity-theft terminal (4) confluxes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200172620U CN201985131U (en) | 2011-01-19 | 2011-01-19 | Photovoltaic array lightning-protection header box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200172620U CN201985131U (en) | 2011-01-19 | 2011-01-19 | Photovoltaic array lightning-protection header box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985131U true CN201985131U (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200172620U Expired - Fee Related CN201985131U (en) | 2011-01-19 | 2011-01-19 | Photovoltaic array lightning-protection header box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201985131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579157A (en) * | 2015-01-16 | 2015-04-29 | 苏州长风自动化科技有限公司 | Photovoltaic convergence box with lightning protection failure early warning function |
-
2011
- 2011-01-19 CN CN2011200172620U patent/CN201985131U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579157A (en) * | 2015-01-16 | 2015-04-29 | 苏州长风自动化科技有限公司 | Photovoltaic convergence box with lightning protection failure early warning function |
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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: 20110921 Termination date: 20130119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |