CN201708732U - Photovoltaic array junction box - Google Patents
Photovoltaic array junction box Download PDFInfo
- Publication number
- CN201708732U CN201708732U CN2010201524393U CN201020152439U CN201708732U CN 201708732 U CN201708732 U CN 201708732U CN 2010201524393 U CN2010201524393 U CN 2010201524393U CN 201020152439 U CN201020152439 U CN 201020152439U CN 201708732 U CN201708732 U CN 201708732U
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- China
- Prior art keywords
- photovoltaic array
- bus bar
- road
- anodal
- path
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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 photovoltaic array junction box, which comprises fuses, a circuit breaker, a positive electrode bus bar, a negative electrode bus bar and a non-contact type DC current detector, wherein the non-contact type DC current detector consists of a plurality of current sensors and a detection display module, each path of positive electrode and each path of negative electrode of the photovoltaic array are respectively connected in series with one fuse and are then connected in parallel to the corresponding positive electrode bus bar and the negative electrode bus bar, multiple paths of positive electrodes and multiple paths of negative electrodes of the photovoltaic array are respectively connected in parallel into one path through the corresponding bus bar and are then respectively output through the circuit breaker, and each path of positive electrode and each path of negative electrode of the photovoltaic array are respectively connected with one current sensor. The utility model can be conveniently used for carrying out real-time detection and monitoring on each group and series of current, a lightning protection device can also be connected between the positive electrode bus bar and the negative electrode bus bar, so the junction box has the lightning protection function, and the system safety can be improved.
Description
Technical field
The utility model relates to a kind of photovoltaic array header box of being connected between photovoltaic module and the inverter of being used for.
Background technology
For grid-connected photovoltaic system,, maintain easily in order to reduce connecting line between photovoltaic module and the inverter, improve reliability, generally need between photovoltaic module and inverter, increase the direct current collector-shoe gear, the array input of multichannel is converged into one tunnel output, make things convenient for the inverter wiring.At present common photovoltaic array header box is generally comparatively simple, only be that the multichannel component string access fuse that will import converges into one tunnel output, insert circuit breaker in the back of confluxing at most again, can not detect the current value of each group string and the fault of monitoring group string, can not be anti-lightning strike, thus the security reliability of whole system reduced.For example, the utility model patent ZL200920142949.X that announces on November 25th, 2009 has just disclosed a kind of like this photovoltaic array header box.
The utility model content
The utility model is at the deficiencies in the prior art, designed and developed out a kind of can detect and show each group crosstalk flow valuve and can be effectively anti-lightning strike, the photovoltaic array lightning protection header box that prevents the electric current adverse current.
The utility model is realized by following scheme:
A kind of photovoltaic array header box comprises anodal busbar, cathode bus bar, fuse, circuit breaker; Each road positive pole of photovoltaic array is connected in parallel to anodal busbar respectively with after a fuse is connected, and each road negative pole is connected in parallel to cathode bus bar respectively with after a fuse is connected; The multichannel positive pole or the multichannel negative pole of photovoltaic array are exported by circuit breaker after the busbar parallel connection; Can increase contactless dc current measurement device in circuit, this measurement mechanism comprises current sensor and current detection module, for example: based on the measurement mechanism of Hall element or the measurement mechanism that makes up based on the phase difference type magnetic modulation principle; With each string group of photovoltaic array, promptly anodal or each the road negative pole in each road inserts this measurement mechanism, can understand the electric current of each group string in real time and it is monitored in real time, has increased substantially fail safe, the reliability of photovoltaic array header box.
On the basis of above scheme, can also in circuit, increase a lightning protection device, anodal busbar and cathode bus bar are electrically connected respectively with the respective terminal of this lightning protection device, thereby make this photovoltaic array header box possess anti-lightning strike function, further improved fail safe.
Can also be on each road of photovoltaic array anodal or each road negative pole counnter attack diode of connecting respectively, thereby can prevent the electric current adverse current that fault causes.
Description of drawings
Fig. 1 is the utility model primary circuit schematic diagram.
Wherein: 1, fuse; 2, counnter attack diode; 3, lightning protection device; 4, current sensor; 5, current detection module; 6, circuit breaker; 7, anodal busbar; 8, cathode bus bar.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated:
Embodiment 1:
Shown in accompanying drawing, each road of photovoltaic array is anodal connects with a fuse 1 respectively with each road negative pole, and then is connected in parallel to anodal busbar 7 and cathode bus bar 8 respectively; Anodal or each the road negative pole in each road of photovoltaic array is connected with a current sensor 4 in the contactless direct current detection device respectively; The signal of current sensor 4 is sent to current detection module 5; The photovoltaic array multichannel anodal with the multichannel negative pole by anodal busbar 7 and cathode bus bar 8 respectively parallel connection be to be connected output by circuit breaker 6 after one the tunnel.
Embodiment 2:
Shown in accompanying drawing, anodal busbar 7 is connected with the respective terminal of lightning protection device 3 respectively with cathode bus bar 8, and remainder is with embodiment 1.
Embodiment 3:
Shown in annex map, each road positive pole or each road negative pole of photovoltaic array are connected with a counnter attack diode respectively, and remainder is with embodiment 1.
Embodiment 4:
Shown in accompanying drawing, each road positive pole or each road negative pole of photovoltaic array are connected with a counnter attack diode respectively, and remainder is with embodiment 2.
Claims (3)
1. a photovoltaic array header box comprises anodal busbar, cathode bus bar, fuse, circuit breaker; Anodal and each the road negative pole in each road of photovoltaic array is connected respectively and is connected in parallel to corresponding anodal busbar and cathode bus bar behind the fuse; Anodal and the multichannel negative pole of the multichannel of photovoltaic array is all exported by circuit breaker after parallel connection is one the tunnel respectively through busbar accordingly, it is characterized in that: also comprise the contactless dc current measurement device of a cover, this measurement mechanism comprises current sensor and current detection module; Each road positive pole or each road negative pole of photovoltaic array all connect a current sensor.
2. photovoltaic array header box as claimed in claim 1 is characterized in that: also comprise a lightning protection device, described anodal busbar, cathode bus bar insert the respective terminal of lightning protection device respectively.
3. photovoltaic array header box as claimed in claim 1 or 2 is characterized in that: also comprise some counnter attack diodes, each road positive pole or each road negative pole of photovoltaic array are connected with a counnter attack diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201524393U CN201708732U (en) | 2010-04-07 | 2010-04-07 | Photovoltaic array junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201524393U CN201708732U (en) | 2010-04-07 | 2010-04-07 | Photovoltaic array junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201708732U true CN201708732U (en) | 2011-01-12 |
Family
ID=43445882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201524393U Expired - Lifetime CN201708732U (en) | 2010-04-07 | 2010-04-07 | Photovoltaic array junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201708732U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255571A (en) * | 2011-07-20 | 2011-11-23 | 浙江尖山光电股份有限公司 | Photovoltaic array intelligent junction box |
| CN102820809A (en) * | 2012-09-15 | 2012-12-12 | 无锡隆玛科技股份有限公司 | Mini-type intelligent photovoltaic junction box |
| CN103248007A (en) * | 2013-05-20 | 2013-08-14 | 中节能东台太阳能发电有限公司 | PID (Potential Induced Degradation)-resistant circuit and monitoring device thereof |
-
2010
- 2010-04-07 CN CN2010201524393U patent/CN201708732U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255571A (en) * | 2011-07-20 | 2011-11-23 | 浙江尖山光电股份有限公司 | Photovoltaic array intelligent junction box |
| CN102820809A (en) * | 2012-09-15 | 2012-12-12 | 无锡隆玛科技股份有限公司 | Mini-type intelligent photovoltaic junction box |
| CN102820809B (en) * | 2012-09-15 | 2015-06-10 | 无锡隆玛科技股份有限公司 | Mini-type intelligent photovoltaic junction box |
| CN103248007A (en) * | 2013-05-20 | 2013-08-14 | 中节能东台太阳能发电有限公司 | PID (Potential Induced Degradation)-resistant circuit and monitoring device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA MERCHANTS NEW ENERGY (SHENZHEN) CO., LTD. Free format text: FORMER OWNER: GCL SOLAR CO., LTD. Effective date: 20130702 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210008 NANJING, JIANGSU PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130702 Address after: 518000, Guangdong, Shenzhen, Nanshan District coastal road, former Bay bonded port area (Park), merchants bonded Qianhai No. three warehouse room 3501 Patentee after: China Merchants New Energy (Shenzhen) Co., Ltd. Address before: 210008 No. 68 Sheng Sheng Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu, China Patentee before: GCL Solar System Limited |
|
| C56 | Change in the name or address of the patentee |
Owner name: UNITED PHOTOVOLTAICS (SHENZHEN) CO., LTD. Free format text: FORMER NAME: CHINA MERCHANTS NEW ENERGY (SHENZHEN) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518000, Guangdong, Shenzhen, Nanshan District coastal road, former Bay bonded port area (Park), merchants bonded Qianhai No. three warehouse room 3501 Patentee after: United photovoltaic (Shenzhen) Co., Ltd. Address before: 518000, Guangdong, Shenzhen, Nanshan District coastal road, former Bay bonded port area (Park), merchants bonded Qianhai No. three warehouse room 3501 Patentee before: China Merchants New Energy (Shenzhen) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |
|
| CX01 | Expiry of patent term |