CN202002985U - Confluence detection plate, monitoring plate and photovoltaic confluence box - Google Patents
Confluence detection plate, monitoring plate and photovoltaic confluence box Download PDFInfo
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- CN202002985U CN202002985U CN2011200309587U CN201120030958U CN202002985U CN 202002985 U CN202002985 U CN 202002985U CN 2011200309587 U CN2011200309587 U CN 2011200309587U CN 201120030958 U CN201120030958 U CN 201120030958U CN 202002985 U CN202002985 U CN 202002985U
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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 confluence detection plate, a monitoring plate and a photovoltaic confluence box. The confluence detection plate can be connected with external branches and the monitoring plate and comprises a control module, a high-precision detection circuit and an isolation communication module, wherein the high-precision detection circuit is connected with the external branches and the control module to conduct high-precision detection for current of the external branches so as to obtain detection data and process the detection data through the control module; the isolation communication module is connected with the control module to sends the detection data processed through the control module to the monitoring plate in a photoelectricity isolation way. In the utility model, the wiring of the photovoltaic confluence box is simple, the assembling is rapid, the anti-interference capacity is good, and safety isolation can be realized.
Description
Technical field
The utility model relates to photovoltaic header box field, specially refers to a kind of check-out console that confluxes, monitor board and photovoltaic header box.
Background technology
In photovoltaic generating system, the electric current that single group solar panel can be exported is very limited, has only 10 several amperes usually.In the prior art,, need usually will organize solar panel more, constitute solar panel array (PV array) by the parallel connection of photovoltaic header box for suitable power output is provided to photovoltaic DC-to-AC converter.Therefore, in powerful photovoltaic generating system, the equipment that the photovoltaic header box is normally indispensable.
Present photovoltaic header box, except can realizing the most basic " confluxing " function, part also possesses certain monitoring function, makes things convenient for user's remote monitoring photovoltaic header box and the duty of each solar panel of being connected thereto.The output voltage of solar panel for example, the state (as fuse and lightning protection device etc.) of each former device in the electric current of each cell panel and the photovoltaic header box, and be uploaded to the monitoring host computer of user side by communication module.
Current detecting in the existing photovoltaic header box is used the Hall detection scheme usually, utilizes hub, control module etc. to gather detection, realizes the integrated of monitoring and detection, and need connect a large amount of cables to every the branch road that confluxes from control module; Thus, can cause the wiring complexity in the photovoltaic header box in disorder, and poor expandability.
Summary of the invention
Fundamental purpose of the present utility model makes that for a kind of check-out console that confluxes, monitor board and photovoltaic header box are provided photovoltaic header box cabling is succinct, but and flexible expansion.
The utility model proposes a kind of check-out console that confluxes, be connected with outside branch road and monitor board; Comprise control module, this check-out console that confluxes also comprises:
The high Precision Detection circuit is connected with outside branch road and control module, and outside branch current is carried out high Precision Detection, obtains the detection data and handles by described control module;
Isolate communication module, be connected, will handle back detection data through described control module and be sent to monitor board by the photoelectricity isolation method with control module.
Preferably, described high Precision Detection circuit comprises:
Dividing cell is connected with outside branch road, carries out current detecting, is retrieved as the detection data of simulating signal;
Signal amplification unit is connected with dividing cell and control module, is converted to digital signal by processing module with described for the detection data of simulating signal.
Preferably, the described check-out console that confluxes further comprises:
Isolate accessory power supply, for described isolation communication module provides accessory power supply.
Preferably, described isolation communication module comprises:
Serial communication circuit.
The utility model also proposes a kind of monitor board, and check-out console and user side communication module are connected with confluxing; Described monitor board comprises:
The interface that confluxes is connected with the described check-out console that confluxes, and receives the detection data that the check-out console that confluxes sends by the photoelectricity isolation method;
The external communication module is connected with described user side communication module, and the described detection data that the interface that will conflux receives are sent to the user side communication module.
Preferably, the described interface setting of confluxing is connected with bus.
Preferably, described external communication module comprises:
The RS485 serial ports.
The utility model proposes a kind of photovoltaic header box in addition, comprises being connected the monitor board that confluxes check-out console and be connected with conflux check-out console and user side communication module with outside branch road and monitor board;
The described check-out console that confluxes comprises control module, and also comprises:
The high Precision Detection circuit is connected with outside branch road and control module, and outside branch current is carried out high Precision Detection, obtains the detection data and handles by described control module;
Isolate communication module, be connected, will handle back detection data through described control module and be sent to monitor board by the photoelectricity isolation method with control module;
Described monitor board comprises:
The interface that confluxes is connected with the described check-out console that confluxes, and receives the detection data that the check-out console that confluxes sends by the photoelectricity isolation method;
The external communication module is connected with described user side communication module, and the described detection data that the interface that will conflux receives are sent to the user side communication module.
The utility model can make that the cabling of photovoltaic header box is succinct, and assembling is quick, and antijamming capability is strong, can realize the safety insulation simultaneously.
Description of drawings
Fig. 1 is conflux a structural representation among check-out console one embodiment of the utility model;
Fig. 2 is conflux another structural representation among check-out console one embodiment of the utility model;
Fig. 3 is the utility model structural representation that check-out console is connected with monitor board that confluxes among check-out console one embodiment that confluxes;
Fig. 4 is the structural representation among the utility model monitor board one embodiment;
Fig. 5 is the structural representation among the utility model photovoltaic header box one embodiment.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
The utility model adopts the scheme of disperseing detection, and the detection of analog quantity is substantially all finished on the check-out console that confluxes; Photovoltaic header box inside (confluxing between check-out console and the monitor board) is to transmit the communication mode of digital signal, and cabling is succinct, and assembling is quick, and antijamming capability is strong; And, can increase and decrease the quantity of confluxing and monitoring outside branch road flexibly by the quantity of the check-out console that confluxes in the increase and decrease photovoltaic header box, make the configuration of photovoltaic header box and expansion very flexible.
With reference to Fig. 1, an embodiment of a kind of check-out console that confluxes of the utility model is proposed.This check-out console that confluxes can be connected with outside branch road and monitor board; Comprise control module 21, this check-out console that confluxes also comprises:
High Precision Detection circuit 22 is connected with outside branch road and control module 21, and outside branch current is carried out high Precision Detection, obtains the detection data and handles by above-mentioned control module 21;
Isolate communication module 23, be connected, will handle back detection data through above-mentioned control module 21 and be sent to monitor board by the photoelectricity isolation method with control module 21.
Above-mentioned high Precision Detection circuit 22 to the current detecting of outside branch road (solar panel), obtains and detects data and handle.These detection data comprise the electric current of outside branch road and/or information of voltage etc.; This processing includes but not limited to AD conversion (analog to digital conversion).Wherein, data relevant with outside branch road in the header box are realized detecting by the check-out console that confluxes; These data comprise data such as branch current, voltage.And the total data relevant data such as (check-out console that confluxes) gathering with header box, because data volume is less, then can directly realize detecting by monitor board, these data comprise by the total PV voltage of high resistant isolation detection, detect the lightning protection device state, detect the master switch state of header box etc.
Above-mentioned isolation communication module 23 with these detection data after treatment, is sent to monitor board by the photoelectricity isolation method.This isolation communication module 23 comprises serial communication interface (TTL serial communication interface) at least, by serial communication and the monitor board communication that photoelectricity is isolated, realizes that outside branch road (solar panel) and the first road safety of user side communication interface insulate.
The check-out console that confluxes in the present embodiment obtains and handles detection signal by the high Precision Detection module, utilizes isolation communication module 23 to use photoelectricity to isolate again and sends; Realize the detection of analog quantity (simulating signal), and be converted to digital signal and send again; Advantages such as it is succinct that it has cabling, and assembling is quick, and antijamming capability is strong.
With reference to Fig. 2, above-mentioned high Precision Detection circuit 22 comprises dividing cell 221 and signal amplification unit 222; This dividing cell 221 is connected with outside branch road, carries out current detecting, is retrieved as the detection data of simulating signal; This signal amplification unit 222 is connected with dividing cell 221 and control module 21, is converted to digital signal by processing module with above-mentioned for the detection data of simulating signal.
In the present embodiment, above-mentioned dividing cell 221 can be shunt, and above-mentioned signal amplification unit 222 can be precision amplifier.This shunt and precision amplifier constitute the high Precision Detection circuit 22 of solar panel branch road (outside branch road) electric current, so the trueness error that detects can be controlled at below 0.1 ampere.Simultaneously, the high Precision Detection circuit 22 that this shunt and precision amplifier are formed can reduce taking up room, and reduce cost.(with reference to Fig. 3)
The above-mentioned check-out console that confluxes further comprises the isolation accessory power supply, for above-mentioned isolation communication module 23 provides accessory power supply.
The above-mentioned check-out console that confluxes can integrate and conflux and measuring ability, and can will detect data by serial communication and offer monitor board, makes that the cabling of photovoltaic header box is succinct, and assembling is quick, and antijamming capability is strong, can realize the safety insulation simultaneously.
With reference to Fig. 4, an embodiment of a kind of monitor board of the utility model is proposed.This monitor board can be connected with conflux check-out console and user side communication module; Above-mentioned monitor board comprises:
The interface 32 that confluxes is connected with the above-mentioned check-out console that confluxes, and receives the detection data that the check-out console that confluxes sends by the photoelectricity isolation method;
Above-mentioned monitor board comprises that also processing module 30 carries out control and treatment.This monitor board can be sent to the user side communication module by the photoelectricity isolation method again with the check-out console that confluxes by the detection data that the photoelectricity isolation method sends, and uses this detection data for user side.This monitor board also can be to header box total voltage isolation detection, and detects lightning protection device, master switch state etc. in the header box.
The analog quantity of obtaining by detection detects data, is converted to digital signal on the check-out console that confluxes, and provides photoelectricity to isolate by the check-out console that confluxes again and is sent to monitor board; This monitor board provides photoelectricity to isolate once more, will detect data and be sent to user side; The photoelectricity of above-mentioned two-stage is isolated, and more reliably and has easily realized the solar panel and the insulation of the safety between the user side communication module of band high-tension electricity (may lie prostrate up to more than 1000).Said external communication module 31 comprises the RS485 serial ports.
The above-mentioned interface 32 that confluxes is provided with and is connected with bus.But this monitor board bus connects several check-out consoles that confluxes simultaneously, the detection of confluxing.And wherein some check-out consoles that confluxes can't influence the current detecting of other check-out consoles that conflux on the same monitor board.
Above-mentioned monitor board can realize that the photoelectricity of two-stage isolates with the check-out console that confluxes, and can will detect data by serial communication and offer user side, makes that the cabling of photovoltaic header box is succinct, and assembling is quick, and antijamming capability is strong, can realize that safety insulate simultaneously.
With reference to Fig. 5, an embodiment of a kind of photovoltaic header box of the utility model is proposed.This photovoltaic header box comprises with outside branch road and monitor board and is connected the check-out console that confluxes, and the monitor board that is connected with conflux check-out console and user side communication module;
The above-mentioned check-out console that confluxes comprises control module 21, and also comprises:
High Precision Detection circuit 22 is connected with outside branch road and control module 21, and outside branch current is carried out high Precision Detection, obtains the detection data and handles by above-mentioned control module 21;
Isolate communication module 23, be connected, will handle back detection data through above-mentioned control module 21 and be sent to monitor board by the photoelectricity isolation method with control module 21;
Above-mentioned monitor board comprises:
The interface 32 that confluxes is connected with the above-mentioned check-out console that confluxes, and receives the detection data that the check-out console that confluxes sends by the photoelectricity isolation method;
Above-mentioned high Precision Detection circuit 22 to the current detecting of outside branch road (solar panel), obtains and detects data and handle.These detection data comprise electric current and/or information of voltage etc.; This processing includes but not limited to AD conversion (analog to digital conversion).Wherein, data relevant with outside branch road in the header box are realized detecting by the check-out console that confluxes; These data comprise data such as branch current, voltage.And the total data relevant data such as (check-out console that confluxes) gathering with header box, because data volume is less, then can directly realize detecting by monitor board, these data comprise by the total PV voltage of high resistant isolation detection, detect the lightning protection device state, detect the master switch state of header box etc.
Above-mentioned isolation communication module 23 with these detection data after treatment, is sent to monitor board by the photoelectricity isolation method.This isolation communication module 23 comprises serial communication interface (TTL serial communication interface) at least, by serial communication and the monitor board communication that photoelectricity is isolated, realizes that outside branch road (solar panel) and the first road safety of user side communication interface insulate.
Above-mentioned high Precision Detection circuit 22 comprises dividing cell 221 and signal amplification unit 222; This dividing cell 221 is connected with outside branch road, carries out current detecting, is retrieved as the detection data of simulating signal; This signal amplification unit 222 is connected with dividing cell 221 and control module 21, is converted to digital signal by processing module with above-mentioned for the detection data of simulating signal.(with reference to Fig. 2)
Above-mentioned monitor board comprises that also processing module 30 carries out control and treatment.This monitor board can be sent to the user side communication module by the photoelectricity isolation method again with the check-out console that confluxes by the detection data that the photoelectricity isolation method sends, and uses this detection data for user side.This monitor board also can be to header box total voltage isolation detection, and detects lightning protection device, master switch state etc. in the header box.
The analog quantity of obtaining by detection detects data, is converted to digital signal on the check-out console that confluxes, and provides photoelectricity to isolate by the check-out console that confluxes again and is sent to monitor board; This monitor board provides photoelectricity to isolate once more, will detect data and be sent to user side; The photoelectricity of above-mentioned two-stage is isolated, and more reliably and has easily realized the solar panel and the insulation of the safety between the user side communication module of band high-tension electricity (may lie prostrate up to more than 1000).Said external communication module 31 comprises the RS485 serial ports.
The above-mentioned interface 32 that confluxes is provided with and is connected with bus.This monitor board can connect several check-out consoles that confluxes simultaneously by bus, the detection of confluxing.And wherein some check-out consoles that confluxes can't influence the current detecting of other check-out consoles that conflux on the same monitor board.
The photovoltaic header box of present embodiment is to adopt to realize confluxing and to disperse by the check-out console that confluxes to detect, and isolate the detection data that receive the connected check-out console that confluxes concentrating by monitor board, and isolation is sent to user side.Wherein, this check-out console that confluxes conflux, detect and (AD) conversion of signals independently realize, make that on monitor board the increase and decrease check-out console that confluxes is very convenient, and do not disturb the work of miscellaneous part.
The above-mentioned check-out console that confluxes can be realized the photoelectricity isolation of two-stage with monitor board; It is digital signal that this check-out console that confluxes at first detects data conversion with detected analog quantity, is sent to monitor board should detecting data isolation by serial communication; This monitor board can offer user side by serial communication with isolating the detection data that receive, and makes that the cabling of photovoltaic header box is succinct, and assembling is quick, and antijamming capability is strong, can realize the safety insulation simultaneously.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (10)
1. the check-out console that confluxes is characterized in that, is connected with outside branch road and monitor board; Comprise control module, this check-out console that confluxes also comprises:
The high Precision Detection circuit is connected with outside branch road and control module, and outside branch current is carried out high Precision Detection, obtains the detection data and handles by described control module;
Isolate communication module, be connected, will handle back detection data through described control module and be sent to monitor board by the photoelectricity isolation method with control module.
2. the check-out console that confluxes according to claim 1 is characterized in that, described high Precision Detection circuit comprises:
Dividing cell is connected with outside branch road, carries out current detecting, is retrieved as the detection data of simulating signal;
Signal amplification unit is connected with dividing cell and control module, is converted to digital signal by processing module with described for the detection data of simulating signal.
3. the check-out console that confluxes according to claim 1 and 2 is characterized in that, the described check-out console that confluxes further comprises:
Isolate accessory power supply, for described isolation communication module provides accessory power supply.
4. the check-out console that confluxes according to claim 1 and 2 is characterized in that, described isolation communication module comprises:
Serial communication circuit.
5. a monitor board is characterized in that, check-out console and user side communication module are connected with confluxing; Described monitor board comprises:
The interface that confluxes is connected with the described check-out console that confluxes, and receives the detection data that the check-out console that confluxes sends by the photoelectricity isolation method;
The external communication module is connected with described user side communication module, and the described detection data that the interface that will conflux receives are sent to the user side communication module.
6. monitor board according to claim 5 is characterized in that, the described interface setting of confluxing is connected with bus.
7. according to claim 5 or 6 described monitor boards, it is characterized in that described external communication module comprises:
The RS485 serial ports.
8. a photovoltaic header box is characterized in that, comprises being connected the monitor board that confluxes check-out console and be connected with conflux check-out console and user side communication module with outside branch road and monitor board;
The described check-out console that confluxes comprises control module, and also comprises:
The high Precision Detection circuit is connected with outside branch road and control module, and outside branch current is carried out high Precision Detection, obtains the detection data and handles by described control module;
Isolate communication module, be connected, will handle back detection data through described control module and be sent to monitor board by the photoelectricity isolation method with control module;
Described monitor board comprises:
The interface that confluxes is connected with the described check-out console that confluxes, and receives the detection data that the check-out console that confluxes sends by the photoelectricity isolation method;
The external communication module is connected with described user side communication module, and the described detection data that the interface that will conflux receives are sent to the user side communication module.
9. photovoltaic header box according to claim 8 is characterized in that, the described check-out console that confluxes is each described check-out console that confluxes in the claim 2 to 4.
10. according to Claim 8 or 9 described photovoltaic header boxs, it is characterized in that described monitor board is each described monitor board in claim 6 or 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200309587U CN202002985U (en) | 2011-01-28 | 2011-01-28 | Confluence detection plate, monitoring plate and photovoltaic confluence box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200309587U CN202002985U (en) | 2011-01-28 | 2011-01-28 | Confluence detection plate, monitoring plate and photovoltaic confluence box |
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| Publication Number | Publication Date |
|---|---|
| CN202002985U true CN202002985U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200309587U Expired - Lifetime CN202002985U (en) | 2011-01-28 | 2011-01-28 | Confluence detection plate, monitoring plate and photovoltaic confluence box |
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| CN (1) | CN202002985U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633936A (en) * | 2013-11-30 | 2014-03-12 | 国家电网公司 | Photovoltaic header box automatic test system |
| WO2016173161A1 (en) * | 2015-04-29 | 2016-11-03 | 京东方科技集团股份有限公司 | Photovoltaic combiner box monitoring system |
-
2011
- 2011-01-28 CN CN2011200309587U patent/CN202002985U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633936A (en) * | 2013-11-30 | 2014-03-12 | 国家电网公司 | Photovoltaic header box automatic test system |
| CN103633936B (en) * | 2013-11-30 | 2016-03-02 | 国家电网公司 | A kind of photovoltaic header box automatic test system |
| WO2016173161A1 (en) * | 2015-04-29 | 2016-11-03 | 京东方科技集团股份有限公司 | Photovoltaic combiner box monitoring system |
| US10193496B2 (en) | 2015-04-29 | 2019-01-29 | Boe Technology Group Co., Ltd. | Photovoltaic combiner box monitoring system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |