CN203103330U - Intelligent photovoltaic lightning protection anti-reverse junction box - Google Patents
Intelligent photovoltaic lightning protection anti-reverse junction box Download PDFInfo
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- CN203103330U CN203103330U CN2013200566320U CN201320056632U CN203103330U CN 203103330 U CN203103330 U CN 203103330U CN 2013200566320 U CN2013200566320 U CN 2013200566320U CN 201320056632 U CN201320056632 U CN 201320056632U CN 203103330 U CN203103330 U CN 203103330U
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- copper bar
- fuse
- negative pole
- output
- measurement
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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 an intelligent photovoltaic lightning protection anti-reverse junction box, belonging to the technical field of a photovoltaic array junction box for photovoltaic power generation. The intelligent photovoltaic lightning protection anti-reverse junction box comprises a positive fuse, a negative fuse, a positive copper bar, a negative copper bar and a self-powered module. The negative fuse is connected with the negative copper bar. The positive fuse is connected with the positive copper bar through an array electrical quantity measuring plate and an anti-reverse diode array. The array electrical quantity measuring plate outputs a signal to a control unit. The positive copper bar and the negative copper bar are respectively connected with the corresponding terminals of a junction output end through a direct current output breaker. A direct current lightning protection device is in parallel connection between the positive copper bar and positive copper bar. The intelligent photovoltaic lightning protection anti-reverse junction box has a simple structure and functions of reverse prevention and current and voltage detection, the working condition of a DC source can be accurately monitored, the controllability of a power plant is raised, and the timeliness and efficiency of the maintenance are raised.
Description
Technical field
The utility model belongs to photovoltaic generation with photovoltaic array header box technical field, particularly relates to a kind of intelligent photovoltaic lightning protection counnter attack header box.
Background technology
Photovoltaic is the abbreviation of solar photovoltaic generation system, it is a kind of photovoltaic effect of utilizing the solar cell semi-conducting material, solar radiation can directly be converted to a kind of new-generation system of electric energy, independent operating is arranged and the dual mode that is incorporated into the power networks, in solar photovoltaic generation system, can use header box, have another name called the solar energy header box, the photovoltaic header box, photovoltaic array lightning protection header box, the solar power generation header box, photovoltaic generation header box or photovoltaic lightning protection header box etc., some, the photovoltaic cell that specification is identical is together in series, form photovoltaic tandem one by one, and then the header box that inserts in parallel, deliver to inverter after header box confluxes, through inverter with dc inversion for exchange and boost after deliver to electrical network.In the link of whole solar energy power generating, the direct current output has accounted for very big ratio, and in large-area solar cell array, electric equipments such as direct current cables, cable testing bridge, direct current header box are to arrange a large amount of interting.In order to reduce the photovoltaic array to the maintenance in the future of the connecting line between the inverter, the protection battery component must be at outdoor configuration photovoltaic array photovoltaic DC header box.The solar energy power generating project is usually placed in open smooth place, because of lacking the sudden strain of a muscle effect that connects of high-lager building and trees to direct lightning strike, the thunderbolt incident very easily takes place, in addition, solar photovoltaic cell panel overvoltage ability is relatively poor, and the area of photovoltaic generation field is big, and the probability that is struck by lightning is very high, if do not take lightning measure, then the overall optical photovoltaic generating system will produce the loss that can't estimate.
Simultaneously, at present common header box is comparatively simple mostly, has only combining functions, only be that the multichannel array that will import converges into one tunnel output, do not have modularization, be not easy to expansion, and do not have communication interface, can not detect the operating state of each group string solar cell in real time, do not have controllability.
The utility model content
Because the above-mentioned defective of prior art, technical problem to be solved in the utility model provides a kind of not fragile, the intelligent photovoltaic header box that can the counnter attack lightning protection has current detecting and voltage detecting function simultaneously.
For achieving the above object, the utility model provides a kind of intelligent photovoltaic lightning protection counnter attack header box, comprises casing, is provided with anodal fuse, negative pole fuse, anodal copper bar, negative pole copper bar and self-powered module in the described casing; Described negative pole fuse is connected with described negative pole copper bar, and described anodal fuse is connected described anodal copper bar by array electrical measurement plate successively with the counnter attack diode array, and the output of described array electrical measurement plate connects the first input end of measurement and control unit; Described anodal copper bar and described negative pole copper bar are connected the corresponding terminal of the output that confluxes respectively by dc circuit breaker; Be parallel with the DC lightning prevention device between described anodal copper bar and the described negative pole copper bar, described self-powered module is to described array electrical measurement plate and measurement and control unit power supply.
Further, also comprise the VD measurement module, the output of described VD measurement module connects second input of described measurement and control unit, described VD measurement module connects the described output that confluxes, described VD measurement module is used to detect the voltage at output two ends of confluxing, described self-powered module is powered to described VD measurement module, when self-powered module both end voltage is unusual, fuse output disconnects the output circuit of self-powered module, makes the utility model safer.
Preferable, the PORT COM of described measurement and control unit is connected with the communication binding post.
Preferable, described array electrical measurement plate is the Hall element plate.
Further, also be provided with metallic plate in the described casing, described anodal fuse, the negative pole fuse, anodal copper bar, the negative pole copper bar, the self-powered module, array electrical measurement plate, the counnter attack diode array, dc circuit breaker, output confluxes, the DC lightning prevention device, the VD measurement module, fuse output and communication binding post are arranged on the one side of described metallic plate, described anodal fuse, the negative pole fuse, anodal copper bar, the negative pole copper bar, the self-powered module, array electrical measurement plate, the counnter attack diode array, dc circuit breaker, output confluxes, the DC lightning prevention device, the VD measurement module, connection lead between fuse output and the communication binding post is arranged on the another side of described metallic plate, can utilize metallic plate to form a screen like this, reduce the interference of electric current greatly, make integral layout clean and tidy simultaneously control module.
The beneficial effects of the utility model are: the utility model has solved header box and has been struck by lightning easily, photovoltaic generating system damages easily, can not detect simultaneously the problem of the operating state of each group string solar cell in real time, and the counnter attack diode is incorporated in the casing, make structure simpler, have counnter attack, electric current and voltage detecting function, operating state that can the precise monitoring DC source, improve the controllability in power station, improve the promptness and the efficient of maintenance, thereby the raising energy output is avoided power generation loss.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Embodiment one: as shown in Figure 1, a kind of intelligent photovoltaic lightning protection counnter attack header box, comprise casing 1, be provided with anodal fuse 2, negative pole fuse 3, anodal copper bar 4, negative pole copper bar 5, self-powered module 6, VD measurement module 12 and metallic plate in the described casing 1; Described negative pole fuse 3 is connected with described negative pole copper bar 5, described anodal fuse 2 is connected described anodal copper bar 4 by array electrical measurement plate 7 successively with counnter attack diode array 8, the output of described array electrical measurement plate 7 connects the first input end of measurement and control unit 15; Described anodal copper bar 4 and described negative pole copper bar 5 are connected the corresponding terminal of the output 10 that confluxes respectively by dc circuit breaker 9; Be parallel with DC lightning prevention device 11 between described anodal copper bar 4 and the described negative pole copper bar 5, described self-powered module 6 is to described array electrical measurement plate 7 and measurement and control unit 15 power supplies, and the earth terminal of described DC lightning prevention device 11 connects earth terminal.The output of described VD measurement module 12 connects second input of described measurement and control unit 15, described VD measurement module 12 connects the described output 10 that confluxes, described VD measurement module 12 is used to detect the voltage at output 10 two ends of confluxing, and described self-powered module 6 is to described VD measurement module 12 power supplies.The PORT COM of described measurement and control unit 15 is connected with communication binding post 14.Described array electrical measurement plate 7 is the Hall element plate.Described anodal fuse 2, negative pole fuse 3, anodal copper bar 4, negative pole copper bar 5, self-powered module 6, array electrical measurement plate 7, counnter attack diode array 8, dc circuit breaker 9, output 10 confluxes, DC lightning prevention device 11, VD measurement module 12, fuse output 13 and communication binding post 14 are arranged on the one side of described metallic plate, described anodal fuse 2, negative pole fuse 3, anodal copper bar 4, negative pole copper bar 5, self-powered module 6, array electrical measurement plate 7, counnter attack diode array 8, dc circuit breaker 9, output 10 confluxes, DC lightning prevention device 11, VD measurement module 12, connection lead between fuse output 13 and the communication binding post 14 is arranged on the another side of described metallic plate.
The utility model is provided with DC lightning prevention device 11 and counnter attack diode array 8; have counnter attack concurrently; lightning protection and anti-overvoltage performance; the protection solar photovoltaic cell panel exempts from the infringement of lightning strike induction voltage and switching overvoltage and operating mistake etc.; counnter attack diode array 8; anodal fuse 2 and negative pole fuse 3 are effectively protected when no matter which connects short circuit anti-or that output is produced; arrive when confluxing output 10 all by dc circuit breaker 9 at anodal copper bar 4 and negative pole copper bar 5; dc circuit breaker 9 is convenient to be safeguarded or is in emergency circumstances disconnecting being connected of photovoltaic array and inverter; thereby guaranteed the safety of photovoltaic electrical network, improved the reliability of system.
More than describe preferred embodiment of the present utility model in detail.Described measurement and control unit 15 adopts chip microcontroller, should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technical staff in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection range by claims.
Claims (5)
1. an intelligent photovoltaic lightning protection counnter attack header box comprises casing (1), is provided with anodal fuse (2), negative pole fuse (3), anodal copper bar (4), negative pole copper bar (5) and self-powered module (6) in the described casing (1); Described negative pole fuse (3) is connected with described negative pole copper bar (5), it is characterized in that: described anodal fuse (2) is connected described anodal copper bar (4) by array electrical measurement plate (7) with counnter attack diode array (8) successively, and the output of described array electrical measurement plate (7) connects the first input end of measurement and control unit (15); Described anodal copper bar (4) and described negative pole copper bar (5) are connected the corresponding terminal of the output that confluxes (10) respectively by dc circuit breaker (9); Be parallel with DC lightning prevention device (11) between described anodal copper bar (4) and the described negative pole copper bar (5), described self-powered module (6) is to described array electrical measurement plate (7) and measurement and control unit (15) power supply.
2. intelligent photovoltaic lightning protection counnter attack header box as claimed in claim 1, it is characterized in that: also comprise VD measurement module (12), the output of described VD measurement module (12) connects second input of described measurement and control unit (15), described VD measurement module (12) connects the described output that confluxes (10), described VD measurement module (12) is used for detecting the voltage at output (10) two ends of confluxing, and described self-powered module (6) is powered to described VD measurement module (12).
3. intelligent photovoltaic lightning protection counnter attack header box as claimed in claim 1 or 2, it is characterized in that: the PORT COM of described measurement and control unit (15) is connected with communication binding post (14).
4. intelligent photovoltaic lightning protection counnter attack header box as claimed in claim 1 or 2, it is characterized in that: described array electrical measurement plate (7) is the Hall element plate.
5. intelligent photovoltaic lightning protection counnter attack header box as claimed in claim 3, it is characterized in that: described casing also is provided with metallic plate in (1), described anodal fuse (2), negative pole fuse (3), anodal copper bar (4), negative pole copper bar (5), self-powered module (6), array electrical measurement plate (7), counnter attack diode array (8), dc circuit breaker (9), output (10) confluxes, DC lightning prevention device (11), VD measurement module (12), fuse output (13) and communication binding post (14) are arranged on the one side of described metallic plate, described anodal fuse (2), negative pole fuse (3), anodal copper bar (4), negative pole copper bar (5), self-powered module (6), array electrical measurement plate (7), counnter attack diode array (8), dc circuit breaker (9), output (10) confluxes, DC lightning prevention device (11), VD measurement module (12), connection lead between fuse output (13) and the communication binding post (14) is arranged on the another side of described metallic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200566320U CN203103330U (en) | 2013-01-31 | 2013-01-31 | Intelligent photovoltaic lightning protection anti-reverse junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200566320U CN203103330U (en) | 2013-01-31 | 2013-01-31 | Intelligent photovoltaic lightning protection anti-reverse junction box |
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| Publication Number | Publication Date |
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| CN203103330U true CN203103330U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013200566320U Expired - Fee Related CN203103330U (en) | 2013-01-31 | 2013-01-31 | Intelligent photovoltaic lightning protection anti-reverse junction box |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065335A (en) * | 2014-06-04 | 2014-09-24 | 北京京东方能源科技有限公司 | Photovoltaic concentration device |
| CN106357215A (en) * | 2016-11-09 | 2017-01-25 | 天津开合电力科技有限公司 | Intelligent photovoltaic convergence box |
| CN106788219A (en) * | 2017-01-23 | 2017-05-31 | 沈小红 | A kind of photovoltaic generation header box |
| CN108964604A (en) * | 2018-07-27 | 2018-12-07 | 易事特新能源合肥有限公司 | A kind of photovoltaic array intelligent DC header box |
-
2013
- 2013-01-31 CN CN2013200566320U patent/CN203103330U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065335A (en) * | 2014-06-04 | 2014-09-24 | 北京京东方能源科技有限公司 | Photovoltaic concentration device |
| US9742349B2 (en) | 2014-06-04 | 2017-08-22 | Boe Technology Group Co., Ltd. | PV junction unit, PV junction box and method for monitoring current in PV string |
| CN106357215A (en) * | 2016-11-09 | 2017-01-25 | 天津开合电力科技有限公司 | Intelligent photovoltaic convergence box |
| CN106788219A (en) * | 2017-01-23 | 2017-05-31 | 沈小红 | A kind of photovoltaic generation header box |
| CN108964604A (en) * | 2018-07-27 | 2018-12-07 | 易事特新能源合肥有限公司 | A kind of photovoltaic array intelligent DC header box |
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Legal Events
| 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: 20130731 Termination date: 20160131 |
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| EXPY | Termination of patent right or utility model |