CN102820809B - Mini-type intelligent photovoltaic junction box - Google Patents
Mini-type intelligent photovoltaic junction box Download PDFInfo
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- CN102820809B CN102820809B CN201210341619.XA CN201210341619A CN102820809B CN 102820809 B CN102820809 B CN 102820809B CN 201210341619 A CN201210341619 A CN 201210341619A CN 102820809 B CN102820809 B CN 102820809B
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- junction box
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- 238000001514 detection method Methods 0.000 claims abstract description 45
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- 230000005355 Hall effect Effects 0.000 claims description 26
- 239000004411 aluminium Substances 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract 2
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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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- Photovoltaic Devices (AREA)
Abstract
The invention relates to a junction box, in particular to a mini-type intelligent photovoltaic junction box, belonging to the technical field of photovoltaic junction boxes. Through the technical scheme of the invention, the mini-type intelligent photovoltaic junction box comprises a box body consisting of a box bottom and an upper cover, wherein the box body is made of aluminum. According to the mini-type intelligent photovoltaic junction box disclosed by the invention, the box body is made of the aluminum so as to have small weight and reduced volume, and is also used as a heat-radiating fin of an IGBT (insulated gate bipolar transistor) device so as to have good heat-dispersion performance; a main control board is arranged in the box body, each IGBT device and a current detection circuit of the main control board form a detection control branch circuit, and a junction box controller on the main control board is used for controlling the state of the IGBT devices according to a current value inputted by the current detection circuit so as to reach a purpose of effectively monitoring a solar cell board; and the mini-type intelligent photovoltaic junction box disclosed by the invention has the advantages of capability of saving machining and using cost, high automation degree, convenience for machining and manufacturing, safety and reliability.
Description
Technical field
The present invention relates to a kind of header box, especially a kind of Mini-type intelligent photovoltaic junction box, belongs to the technical field of photovoltaic combiner box.
Background technology
Along with the development of society, the demand day of the energy is becoming tight.China's solar energy resources is very abundant, and the construction accelerating photovoltaic plant not only tallies with the national condition, and also can more effectively promote China's structural transformation of the economy and energy structure optimizing.In solar photovoltaic generation system, in order to the line reduced between solar-energy photo-voltaic cell array and inverter needs to use header box.
The material of current header box all adopts steel plate or engineering plastics to do, and is generally made up of following major part: casing, DC circuit breaker, lightning protection device, monitoring unit, fuse, counnter attack diode (blocking diode), binding post, cable or copper bar, guide rail etc.Main current loop is still by terminal, fuse, circuit breaker composition, and the device of monitoring unit part and main current loop is separately independent use, and monitoring unit part is selectable portion, not essential.The header box volume of said structure is large, and need during use to take larger space, use cost is high, and automaticity is low.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of Mini-type intelligent photovoltaic junction box, its convenient processing and manufacture, reduce volume, intelligence degree is high, safe and reliable.
According to technical scheme provided by the invention, described Mini-type intelligent photovoltaic junction box, comprises by the casing formed with upper cover at the bottom of box; Described casing is adopted and is formed from aluminium.
Be provided with master control borad in described casing, described master control borad comprises some IGBT device and to match the current detection circuit be connected with described IGBT device; Described IGBT device and current detection circuit form detection control branch road, by lightning protection device ground connection after described multiple detection control branch circuit parallel connection; Current detection circuit, lightning protection device are connected with the input of the header box controller on master control borad, and the output of header box controller is connected with the control end of IGBT device; Header box controller exports the on off operating mode of the Current Control IGBT device of corresponding detection control branch road according to current detection circuit.
Described casing forms the fin of IGBT device.
Described current detection circuit comprises chip type hall effect sensor, the described output of chip type hall effect sensor is connected with the in-phase end of operational amplifier, the output of operational amplifier is connected with the end of oppisite phase of operational amplifier by resistance, and the output of operational amplifier is by the 25 capacity earth.
Described chip type hall effect sensor adopts ACS712 chip.
The VCC end of described chip type hall effect sensor is connected with power supply VCC, and by the 13 capacity earth; The FLT end of chip type hall effect sensor is by the 23 capacity earth; The GND of chip type hall effect sensor holds ground connection; The input of chip type hall effect sensor is connected with the output of photovoltaic battery panel.
The cathode power supply end of described operational amplifier is connected with power supply VCC, and by the 21 capacity earth; The negative power supply end ground connection of operational amplifier.
Advantage of the present invention: casing is adopted and is formed from aluminium, lightweight, reduces the volume of casing, simultaneously can also as the fin of IGBT device, perfect heat-dissipating; In casing, master control borad is set, on master control borad, each IGBT device and current detection circuit form a detection control branch road, header box controller on master control borad detects the state of the current value control IGBT device of input by current detection circuit, reach the object to solar panel effective monitoring; Can save processing and use cost, automaticity is high, convenient processing and manufacture, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of header box of the present invention.
Fig. 2 is the circuit theory diagrams of master control borad in header box of the present invention.
Fig. 3 is the circuit block diagram of master control borad in header box of the present invention.
Fig. 4 is the circuit theory diagrams of current detection circuit of the present invention.
Description of reference numerals: at the bottom of 1-box, 2-upper cover, 3-IGBT device, 4-current detection circuit, 5-lightning protection device and 6-header box controller.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Figure 1: photovoltaic combiner box of the present invention comprises casing, described casing to comprise at the bottom of box 1 and 1 mate the upper cover 2 be connected with at the bottom of described box, and wherein, casing is adopted and is formed from aluminium, and adopts after being formed from aluminium and conveniently can process casting; Simultaneously compared with existing photovoltaic combiner box, the volume of casing can be reduced, reduce area occupied when using.Usually, upper cover 2 to be hinged at the bottom of box on 1.
As shown in Figures 2 and 3: in order to monitor the working method of solar panel when casing uses and control, be provided with master control borad in casing of the present invention, described master control borad comprises some IGBT device 3 and to match the current detection circuit 4 be connected with described IGBT device 3; A described IGBT device 3 and a current detection circuit 4 form a detection control branch road, by lightning protection device 5 ground connection after described multiple detection control branch circuit parallel connection; Current detection circuit 4, lightning protection device 5 are connected with the input of the header box controller 6 on master control borad, and the output of header box controller 6 is connected with the control end of IGBT device 3; Header box controller 6 exports the on off operating mode of the Current Control IGBT device 3 of corresponding detection control branch road according to current detection circuit 4.One end of IGBT device 3 is connected with solar panel, exports for the current/voltage exported by solar panel, and the other end of IGBT device 3 is connected with lightning protection device 5 by current detection circuit 4, and is connected with the output OUT+ that confluxes.In the embodiment of the present invention, adopt due to casing and be formed from aluminium, can as the fin of IGBT device 3, use IGBT device 3 to combine with header box controller 6 and form the control system of whole solar panel and header box, the function of traditional counnter attack diode can be replaced, and replace the function of circuit breaker, an IGBT device 3 and a current detection circuit 4 corresponding with a solar panel, can control the detection control branch road on each road to make header box controller 6.When current detection circuit detects that the electric current of detection control branch road exceedes default current value, header box controller 6 can turn off separately a detection control branch road by the mode turning off IGBT device 3, guarantees the stable of solar panel output current and reliability.After above-mentioned setting, the structures such as the fin of large, the expensive circuit breaker of volume, fuse, counnter attack diode and counnter attack diode can be saved, again greatly can reduce the volume of header box, reduce processing and use cost.
As shown in Figure 4: current detection circuit 4 comprises chip type hall effect sensor U1, the output of described chip type hall effect sensor U1 is connected with the in-phase end of operational amplifier U21A, the output of operational amplifier U21A is connected with the end of oppisite phase of operational amplifier U21A by resistance R26, and the output of operational amplifier U21A is by the 25 electric capacity C25 ground connection.The output of operational amplifier U21A is connected with the input of header box controller 6.Header box controller 6 can adopt conventional micro-chip processor; Header box controller 6 can also provide communication interface, so that by the State-output of whole header box in outside watch-dog, and can by the operating state of lightning protection device 5.
In the embodiment of the present invention, described chip type hall effect sensor U1 adopts ACS712 chip; And when chip type hall effect sensor U1 adopts ACS712 chip, the VCC end of described chip type hall effect sensor U1 is connected with power supply VCC, and by the 13 electric capacity C13 ground connection; The FLT end of chip type hall effect sensor U1 is by the 23 electric capacity C23 ground connection; The GND of chip type hall effect sensor U1 holds ground connection; IP+, IP-input of chip type hall effect sensor U1 is connected with the output of photovoltaic battery panel.The cathode power supply end of described operational amplifier U21A is connected with power supply VCC, and by the 21 electric capacity C21 ground connection; The negative power supply end ground connection of operational amplifier U21A.
Chip type hall effect sensor U1 of the present invention adopts ACS712 chip, and compared with existing conventional current sensor, reduce the volume of current Hall effect sensor in monitoring of confluxing, every road detection control branch current can reach positive and negative 20A.After being connected with the output of photovoltaic battery panel by chip type hall effect sensor U1, the output of corresponding photovoltaic battery panel can be detected, by being detected electric current accordingly after operational amplifier U21A, simple and compact for structure, safe and reliable.
As shown in Fig. 1 ~ Fig. 4: during use, according to the quantity of solar panel, corresponding IGBT device 3 and current detection circuit 4 are set in the casing that aluminium is made, the control end of IGBT device 3 is connected with the output of header box controller 6, the electric current that current detection circuit 4 exports for detecting each solar panel; Header box controller 6 can detect according to current detection circuit 4 on off operating mode that the current value inputted controls IGBT device 3, with the on off operating mode regulating solar panel place to export branch road, reaches the object to solar panel effective monitoring.
Casing of the present invention is adopted and is formed from aluminium, lightweight, is convenient to transport, reduces the volume of casing, simultaneously can also as the fin of IGBT device 3, perfect heat-dissipating; In casing, master control borad is set, on master control borad, each IGBT device 3 and current detection circuit 4 form a detection control branch road, header box controller 6 on master control borad detects the state of the current value control IGBT device 3 of input by current detection circuit 4, reach the object to solar panel effective monitoring; Can save processing and use cost, automaticity is high, convenient processing and manufacture, safe and reliable.
Claims (3)
1. a Mini-type intelligent photovoltaic junction box, comprises the casing be made up of (1) at the bottom of box and upper cover (2); It is characterized in that: described casing is adopted and is formed from aluminium;
Be provided with master control borad in described casing, described master control borad comprises some IGBT device (3) and to match the current detection circuit (4) be connected with described IGBT device (3); Described IGBT device (3) and current detection circuit (4) form detection control branch road, by lightning protection device (5) ground connection after multiple described detection control branch circuit parallel connection; Current detection circuit (4), lightning protection device (5) are connected with the input of the header box controller (6) on master control borad, and the output of header box controller (6) is connected with the control end of IGBT device (3); According to the output of current detection circuit (4), the on off operating mode of the Current Control IGBT device (3) of the corresponding detection control branch road of header box controller (6);
Described current detection circuit (4) comprises chip type hall effect sensor (U1), the output of described chip type hall effect sensor (U1) is connected with the in-phase end of operational amplifier (U21A), the output of operational amplifier (U21A) is connected with the end of oppisite phase of operational amplifier (U21A) by resistance (R26), and the output of operational amplifier (U21A) is by the 25 electric capacity (C25) ground connection;
The VCC end of described chip type hall effect sensor (U1) is connected with power supply VCC, and chip type hall effect sensor (U1) also passes through the 13 electric capacity (C13) ground connection; The FLT end of chip type hall effect sensor (U1) is by the 23 electric capacity (C23) ground connection; The GND of chip type hall effect sensor (U1) holds ground connection; The input of chip type hall effect sensor (U1) is connected with the output of photovoltaic battery panel;
The cathode power supply end of described operational amplifier (U21A) is connected with power supply VCC, and operational amplifier (U21A) also passes through the 21 electric capacity (C21) ground connection; The negative power supply end ground connection of operational amplifier (U21A).
2. Mini-type intelligent photovoltaic junction box according to claim 1, is characterized in that: described casing forms the fin of IGBT device (3).
3. Mini-type intelligent photovoltaic junction box according to claim 1, is characterized in that: described chip type hall effect sensor (U1) adopts ACS712 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210341619.XA CN102820809B (en) | 2012-09-15 | 2012-09-15 | Mini-type intelligent photovoltaic junction box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210341619.XA CN102820809B (en) | 2012-09-15 | 2012-09-15 | Mini-type intelligent photovoltaic junction box |
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| Publication Number | Publication Date |
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| CN102820809A CN102820809A (en) | 2012-12-12 |
| CN102820809B true CN102820809B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210341619.XA Active CN102820809B (en) | 2012-09-15 | 2012-09-15 | Mini-type intelligent photovoltaic junction box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106304489A (en) * | 2016-08-25 | 2017-01-04 | 安徽朗越能源股份有限公司 | A kind of energy-conservation lithium electricity type solar street light intelligence control system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149890A (en) * | 2013-01-25 | 2013-06-12 | 上海友邦电气(集团)股份有限公司 | Current convergence monitoring device |
| CN103472272B (en) * | 2013-07-25 | 2015-10-21 | 浙江方圆电气设备检测有限公司 | A kind of photovoltaic combiner box DC current regulates test unit |
| CN104158484A (en) * | 2014-07-21 | 2014-11-19 | 保定市瑞高电气有限公司 | Branch-controllable intelligent combiner box based on IGBT technology, and photovoltaic system |
| CN106656020B (en) * | 2016-10-12 | 2018-10-19 | 江苏海克力斯电力科技有限公司 | Intelligent junction box with monitor protective system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201360157Y (en) * | 2008-12-31 | 2009-12-09 | 李明斌 | Solar photovoltaic electricity generating system |
| CN201708732U (en) * | 2010-04-07 | 2011-01-12 | 中环光伏系统有限公司 | Photovoltaic array junction box |
| CN202058769U (en) * | 2011-05-27 | 2011-11-30 | 无锡隆玛科技股份有限公司 | Solar energy photovoltaic direct current confluence box |
| CN202085097U (en) * | 2011-02-17 | 2011-12-21 | 博耳(宜兴)电力成套有限公司 | Intelligent controller for photovoltaic confluence box |
-
2012
- 2012-09-15 CN CN201210341619.XA patent/CN102820809B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201360157Y (en) * | 2008-12-31 | 2009-12-09 | 李明斌 | Solar photovoltaic electricity generating system |
| CN201708732U (en) * | 2010-04-07 | 2011-01-12 | 中环光伏系统有限公司 | Photovoltaic array junction box |
| CN202085097U (en) * | 2011-02-17 | 2011-12-21 | 博耳(宜兴)电力成套有限公司 | Intelligent controller for photovoltaic confluence box |
| CN202058769U (en) * | 2011-05-27 | 2011-11-30 | 无锡隆玛科技股份有限公司 | Solar energy photovoltaic direct current confluence box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106304489A (en) * | 2016-08-25 | 2017-01-04 | 安徽朗越能源股份有限公司 | A kind of energy-conservation lithium electricity type solar street light intelligence control system |
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| CN102820809A (en) | 2012-12-12 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Mini-type intelligent photovoltaic junction box Effective date of registration: 20160603 Granted publication date: 20150610 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: 2016990000472 |
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Date of cancellation: 20200522 Granted publication date: 20150610 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: 2016990000472 |
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Denomination of invention: Mini-type intelligent photovoltaic junction box Effective date of registration: 20200522 Granted publication date: 20150610 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: Y2020990000509 |
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Date of cancellation: 20220527 Granted publication date: 20150610 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: Y2020990000509 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Miniature intelligent photovoltaic combiner box Effective date of registration: 20220601 Granted publication date: 20150610 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: Y2022320000259 |
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Granted publication date: 20150610 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: Y2022320000259 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Micro intelligent photovoltaic combiner box Granted publication date: 20150610 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: Y2024980022189 |