CN202183743U - Photovoltaic confluence box - Google Patents
Photovoltaic confluence box Download PDFInfo
- Publication number
- CN202183743U CN202183743U CN201120316803XU CN201120316803U CN202183743U CN 202183743 U CN202183743 U CN 202183743U CN 201120316803X U CN201120316803X U CN 201120316803XU CN 201120316803 U CN201120316803 U CN 201120316803U CN 202183743 U CN202183743 U CN 202183743U
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- photovoltaic
- monitor
- path
- header box
- multichannel
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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 confluence box which comprises a box body, a confluence circuit and a monitor. The confluence circuit is arranged in the box body; the monitor is arranged in the box body; the confluence circuit comprises multi-path positive electrodes, multi-path negative electrodes, a positive electrode bus, a negative electrode bus, a direct current circuit breaker and an output end; each path of the positive electrode and a path of negative electrode compose a path of photovoltaic branch; the multi-path positive electrodes are connected in parallel to the positive electrode bus and are converged into one path through the positive electrode bus; the multi-path negative electrodes are connected in parallel to the negative electrode bus and are converged into one path through the negative electrode bus; the positive electrode bus and the negative electrode bus are respectively connected to the direct current circuit breaker and is connected with the output end through the direct current circuit breaker; and the monitor acquires electricity parameters of the multi-path photovoltaic branches to monitor each path of photovoltaic branches in real time. The monitor monitors the electricity parameters of the multi-path photovoltaic branches to monitor each path of photovoltaic branches in real time to realize each path of photovoltaic branches, so that the photovoltaic serial errors can be found in time, and the power loss and waste can be effectively avoided.
Description
[technical field]
The utility model relates to a kind of header box, relates in particular to a kind of photovoltaic header box.
[background technology]
At present, energy problem is serious day by day, and clean energy resource is the inevitable developing direction of current low-carbon environment-friendly life, and solar energy is as the main energy in future, and each Sunpower Corp. emerges like the mushrooms after rain.Along with the growth of solar power generation market scale, arise at the historic moment in the large-sized photovoltaic power station, in solar photovoltaic generation system; In order to reduce the line between solar-energy photo-voltaic cell array and the inverter; Can some, photovoltaic cell that specification is identical be together in series, form photovoltaic tandem one by one, and then several photovoltaic tandems parallel connections are inserted the photovoltaic header box; After in the photovoltaic header box, confluxing, with the supporting use of photovoltaic DC-to-AC converter.
Usually, once overhaul at set intervals in the power station, and general every half a year once.In the meantime, when wherein one or more photovoltaic tandems of photovoltaic header box break down since the power station repair time be every half a year once; Photovoltaic group string fault can not be in time found in the power station; Just find fault after half a year, thereby can cause a large amount of power loss, cause great waste.
[utility model content]
Based on this, be necessary to provide a kind of photovoltaic header box that can in time find photovoltaic tandem fault.
A kind of photovoltaic header box comprises casing and is arranged on the circuit that confluxes in the casing, also comprises the monitor that is arranged in the casing; The said circuit that confluxes comprises multichannel positive pole, multichannel negative pole, anodal busbar, cathode bus bar, dc circuit breaker and output; Each road is anodal all to constitute one road photovoltaic branch road with one road negative pole, and the multichannel positive pole is connected in parallel to said anodal busbar, through the anodal busbar Cheng Yilu that confluxes; The multichannel negative pole is connected in parallel to said cathode bus bar; Through the cathode bus bar Cheng Yilu that confluxes, said positive electrode bus and negative pole bus are connected to said dc circuit breaker respectively, connect said output through dc circuit breaker; Said monitor obtains the electrical quantity of multichannel photovoltaic branch road in real time, monitors each road photovoltaic branch road in real time.
Preferably, the said circuit that confluxes also comprises a plurality of fuses, fuse series connection of anodal each Lu Junyu of said multichannel.
Preferably, fuse series connection of each Lu Junyu of said multichannel negative pole.
Preferably, the said circuit that confluxes also comprises lightning protection device, and said lightning protection device connects said positive electrode bus and negative pole bus and ground connection.
Preferably, said monitor has alarm unit, and said alarm unit is reported to the police when open circuit takes place the photovoltaic branch road.
Preferably, the said circuit that confluxes comprises Hall element, and said monitor obtains multichannel anodal electric current and voltage through Hall element.
Preferably, said monitor also has communication interface, is used for telecommunication.
Preferably, said monitor comprises the switching value input unit, is used to gather said dc circuit breaker state and gathers said lightning protection device state.
Preferably, said monitor also comprises the relay output unit, is used to realize Long-distance Control, drives the automatic divide-shut brake of said dc circuit breaker.
Preferably, said lightning protection device has the thunder and lightning counter, the said lightning protection device action frequency of said thunder and lightning counter records.
Above-mentioned photovoltaic header box; A plurality of photovoltaic tandems connect a plurality of photovoltaic branch roads; Parallel connection converges to the photovoltaic header box, and monitor is monitored the electrical quantity of a plurality of photovoltaic branch roads in real time, monitors each road photovoltaic branch road in real time; Thereby can in time find photovoltaic tandem fault, effectively avoid power loss and waste.Simple in structure, easy to maintenance, the long service life of this photovoltaic header box.
[description of drawings]
Fig. 1 is the internal structure sketch map of photovoltaic header box among the embodiment.
[embodiment]
Below in conjunction with accompanying drawing, the embodiment of the utility model is described in detail.
Fig. 1 is the structural representation of photovoltaic header box among the embodiment.This photovoltaic header box comprises casing, is installed in conflux circuit 100 and monitor 200 in the casing.The circuit 100 that confluxes comprises multichannel positive pole 110, multichannel negative pole 120, anodal busbar 130, cathode bus bar 140, dc circuit breaker 150, fuse 160, lightning protection device 170 and output 180.
Casing waterproof and dustproof, antirust, sun-proof.Bottom half is provided with a plurality of cable fixing head, is used for fixing to connect multichannel positive pole, multichannel negative pole and output.The cable fixing head adopts the water-proof cable sleeve pipe, makes under the employing of casing turnover line to advance, go out down mode.Casing degree of protection IP65 reaches more than 25 years useful life.
Because the short circuit current of a plurality of photovoltaic tandems is greater than the electric current of single photovoltaic tandem, thereby can cause fuse 160 fusing with isolated fault photovoltaic tandem, the photovoltaic tandem is played the effect of protection.Fuse 160 is in time isolated the photovoltaic tandem that breaks down, and improves generating efficiency (photovoltaic panel breaks down when not generating electricity, and then becomes the consumed power load), also for avoiding erection stage misconnection or other reasons to cause the overcurrent harm that the local anomaly wiring forms.Among this embodiment, fuse 160 adopts the special high-pressure dc fuse, and specification is 1000VDC, 1A～20A.
Monitor 200 obtains the electrical quantity (at least one in electric current, the voltage) of multichannel photovoltaic branch road in real time, monitors each road photovoltaic branch road in real time.Monitor 200 has alarm unit, and alarm unit is reported to the police when open circuit takes place the photovoltaic branch road.Among this embodiment, monitor 200 comprises the employing Hall element, obtains the electric current and the voltage of multichannel photovoltaic branch road through Hall element.Hall element obtains the electric current and the voltage of photovoltaic branch road through the noncontact mode, gives monitor 200, makes monitor 200 monitor each road photovoltaic branch road with isolation method, when monitor 200 breaks down, does not influence the circuit 100 that confluxes.
In addition, monitor 200 comprises the switching value input unit, is used to gather dc circuit breaker 150 states and gathers lightning protection device 170 states.Monitor 200 also comprises the relay output unit, is used to realize Long-distance Control, drives the automatic divide-shut brake of dc circuit breaker 150.Monitor 200 also comprises communication interface, is used for telecommunication, and electrical quantity and state are uploaded.Communication interface is the redundant RS485 interface of two-way, supports Modbus RTU communications protocol, and address, baud rate, data mode all can freely be set.Further, monitor 200 also provides type sensor input interfaces such as temperature, irradiation, wind speed.
This photovoltaic header box, a plurality of photovoltaic tandems connect a plurality of photovoltaic branch roads, and parallel connection converges to the photovoltaic header box; The electric current and the voltage of 200 pairs of a plurality of photovoltaic branch roads of monitor are monitored in real time; Monitor each road photovoltaic branch road in real time, thereby can in time find photovoltaic tandem fault, and when the photovoltaic branch road breaks down; Report to the police, effectively avoid power loss and waste.Simple in structure, easy to maintenance, the long service life of this photovoltaic header box.
The above embodiment has only expressed several kinds of execution modes of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model.Therefore, the protection range of the utility model patent should be as the criterion with accompanying claims.
Claims (10)
1. a photovoltaic header box comprises casing and is arranged on the circuit that confluxes in the casing, it is characterized in that, also comprises the monitor that is arranged in the casing; The said circuit that confluxes comprises multichannel positive pole, multichannel negative pole, anodal busbar, cathode bus bar, dc circuit breaker and output; Each road is anodal all to constitute one road photovoltaic branch road with one road negative pole, and the multichannel positive pole is connected in parallel to said anodal busbar, through the anodal busbar Cheng Yilu that confluxes; The multichannel negative pole is connected in parallel to said cathode bus bar; Through the cathode bus bar Cheng Yilu that confluxes, said positive electrode bus and negative pole bus are connected to said dc circuit breaker respectively, connect said output through dc circuit breaker; Said monitor obtains the electrical quantity of multichannel photovoltaic branch road in real time, monitors each road photovoltaic branch road in real time.
2. photovoltaic header box according to claim 1 is characterized in that, the said circuit that confluxes also comprises a plurality of fuses, fuse series connection of anodal each Lu Junyu of said multichannel.
3. photovoltaic header box according to claim 2 is characterized in that, fuse series connection of each Lu Junyu of said multichannel negative pole.
4. photovoltaic header box according to claim 1 is characterized in that, the said circuit that confluxes also comprises lightning protection device, and said lightning protection device connects said positive electrode bus and negative pole bus and ground connection.
5. photovoltaic header box according to claim 1 is characterized in that said monitor has alarm unit, and said alarm unit is reported to the police when open circuit takes place the photovoltaic branch road.
6. photovoltaic header box according to claim 1 is characterized in that, the said circuit that confluxes comprises Hall element, and said monitor obtains multichannel anodal electric current and voltage through Hall element.
7. photovoltaic header box according to claim 1 is characterized in that said monitor also has communication interface, is used for telecommunication.
8. photovoltaic header box according to claim 4 is characterized in that said monitor comprises the switching value input unit, is used to gather said dc circuit breaker state and gathers said lightning protection device state.
9. photovoltaic header box according to claim 8 is characterized in that said monitor also comprises the relay output unit, is used to realize Long-distance Control, drives the automatic divide-shut brake of said dc circuit breaker.
10. photovoltaic header box according to claim 4 is characterized in that said lightning protection device has the thunder and lightning counter, the said lightning protection device action frequency of said thunder and lightning counter records.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120316803XU CN202183743U (en) | 2011-08-26 | 2011-08-26 | Photovoltaic confluence box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120316803XU CN202183743U (en) | 2011-08-26 | 2011-08-26 | Photovoltaic confluence box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202183743U true CN202183743U (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120316803XU Expired - Fee Related CN202183743U (en) | 2011-08-26 | 2011-08-26 | Photovoltaic confluence box |
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| Country | Link |
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| CN (1) | CN202183743U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983628A (en) * | 2012-10-31 | 2013-03-20 | 泰豪科技(深圳)电力技术有限公司 | Photovoltaic combiner box |
| CN104734747A (en) * | 2013-12-24 | 2015-06-24 | 郭绍光 | Power line carrier detection communication system of solar photovoltaic cell panel |
| CN109391228A (en) * | 2018-11-15 | 2019-02-26 | 安徽永安电子科技有限公司 | A kind of intellectual photovoltaic DC header box |
| CN110224669A (en) * | 2019-05-10 | 2019-09-10 | 许昌许继风电科技有限公司 | A kind of direct current conflux case |
| CN111030597A (en) * | 2019-12-31 | 2020-04-17 | 国网思极神往位置服务（北京）有限公司 | Solar fault diagnosis method for automatic charging station of unmanned aerial vehicle |
| CN117007911A (en) * | 2023-09-27 | 2023-11-07 | 陕西陶网新智软件科技有限公司 | Fault detection device, system and use method of Direct Current (DC) bus line |
-
2011
- 2011-08-26 CN CN201120316803XU patent/CN202183743U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983628A (en) * | 2012-10-31 | 2013-03-20 | 泰豪科技(深圳)电力技术有限公司 | Photovoltaic combiner box |
| CN102983628B (en) * | 2012-10-31 | 2015-04-22 | 泰豪科技(深圳)电力技术有限公司 | Photovoltaic combiner box |
| CN104734747A (en) * | 2013-12-24 | 2015-06-24 | 郭绍光 | Power line carrier detection communication system of solar photovoltaic cell panel |
| CN109391228A (en) * | 2018-11-15 | 2019-02-26 | 安徽永安电子科技有限公司 | A kind of intellectual photovoltaic DC header box |
| CN110224669A (en) * | 2019-05-10 | 2019-09-10 | 许昌许继风电科技有限公司 | A kind of direct current conflux case |
| CN111030597A (en) * | 2019-12-31 | 2020-04-17 | 国网思极神往位置服务（北京）有限公司 | Solar fault diagnosis method for automatic charging station of unmanned aerial vehicle |
| CN111030597B (en) * | 2019-12-31 | 2021-08-10 | 国网思极神往位置服务（北京）有限公司 | Solar fault diagnosis method for automatic charging station of unmanned aerial vehicle |
| CN117007911A (en) * | 2023-09-27 | 2023-11-07 | 陕西陶网新智软件科技有限公司 | Fault detection device, system and use method of Direct Current (DC) bus line |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20180826 |