CN106803739A - A kind of inexpensive alarm type photovoltaic component terminal box - Google Patents
A kind of inexpensive alarm type photovoltaic component terminal box Download PDFInfo
- Publication number
- CN106803739A CN106803739A CN201710179609.3A CN201710179609A CN106803739A CN 106803739 A CN106803739 A CN 106803739A CN 201710179609 A CN201710179609 A CN 201710179609A CN 106803739 A CN106803739 A CN 106803739A
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- China
- Prior art keywords
- terminal box
- alarm
- module
- output
- type photovoltaic
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- 238000012544 monitoring process Methods 0.000 claims abstract description 33
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 241000282693 Cercopithecidae Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
-
- 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)
- Emergency Alarm Devices (AREA)
Abstract
The present invention proposes a kind of inexpensive alarm type photovoltaic component terminal box, including box body, and multiple binding posts are provided with it, is connected by diode between every two neighboring binding post；Voltage output positive pole and negative pole；Monitoring alarm unit, which is provided with alarm element, and described monitoring alarm unit is electrically connected by wire with each binding post；Described monitoring alarm unit includes monitoring alarm unit power module, component substring voltage acquisition module and signal transacting and output module.Described terminal box, solar components fault monitoring circuit is set in terminal box, using the self-powered set up, effective monitoring and the alert when failure occurs can be carried out to photovoltaic module working condition, structure is easily realized, low cost, effect is good and the investment repayment time is short, it is non-maintaining, it is to avoid corded power carrier wave and wireless telecommunications monitoring have a high cost, investment repayment time shortcoming long.
Description
Technical field
The present invention relates to solar photovoltaic technology field, more particularly to a kind of inexpensive alarm type photovoltaic module wiring
Box.
Background technology
Accreditation with the world to clean energy resource, solar energy power generating is considered as a kind of preferable most sustainable development
The renewable energy power generation technology of feature (most rich in natural resources and most clean power generation process).Solar energy power generating is to utilize
, used as basic generator unit, over time, the decay of the generated output of photovoltaic module is must for solar photovoltaic assembly
Right phenomenon, power attenuation refers to the phenomenon that the power output of component is gradually reduced with the growth of light application time.Its relaxation phenomenon
Four classes can be roughly divided into：The first kind, because power is decayed suddenly caused by monkey wrench, monkey wrench is referred mainly in component
Occur failure welding, packaging technology in production process and there is starved phenomenon, or due to being operated not in carrying, installation process
When, in addition in use component internal it is hidden split, the serious phenomenon such as broken of cell piece；Equations of The Second Kind, initial photo attenuation, i.e.,
There is decline by a relatively large margin in the power output of photovoltaic module, but then tend towards stability in initial several days for just having begun to use；
3rd class, the extremely slow power down phenomenon that the aging decay of component, i.e. solar panel occur in long-term use；The
Four classes, the members in the subregion of component or photovoltaic plant occur to block for a long time.
The monolithic monitoring technology of existing component hair dotted state has two ways：One is corded power ZAP, and two is nothing
Line mechanics of communication, both modes all suffer from some problems.In actual applications, there is many not in corded power ZAP
Foot, such as have impulse disturbances in itself；There is the very big loss of signal on line；Power line causes reduction high to carrier signal, works as electricity
When load is very heavy in the line of force, transmission range is short；And wireless communication technique is vulnerable to interference under forceful electric power magnetic environment；Both modes
Also there is high cost, investment repayment is long, is less susceptible to the shortcomings of safeguarding.In addition, in many practical applications, user only need to and
Problem and be subject to timely failture evacuation in Shi Faxian component power generation processes, and need not be complicated signals transmission, therefore,
Need to propose that a kind of practicality is high, cost is lower, the extremely short component generating state monitoring system of investment repayment.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of low cost and efficient alarm type photovoltaic group
Part terminal box, the generating efficiency variable condition of the battery pack string that it can at any time in monitoring assembly, and give power plant maintenance personnel hair
Go out warning.
To achieve the object of the present invention, a kind of inexpensive alarm type photovoltaic component terminal box of the invention includes box body, its
Multiple binding posts are inside provided with, are connected by diode between every two neighboring binding post；Voltage output positive pole and negative pole；
Monitoring alarm unit, which is provided with alarm element, and described monitoring alarm unit is electric respectively with each binding post by wire
Connection；Described monitoring alarm unit includes monitoring alarm unit power module, component substring voltage acquisition module and signal
Treatment and output module.
Preferably, described power module uses TL431 controllable accurate voltage stabilizing source circuits, its positive pole and negative pole respectively with connect
Positive pole and the negative pole connection of line box, its output end are connected with the input of signal transacting and output module.
Further preferably, the input of the component substring voltage acquisition module corresponds to three groups of single battery component respectively
The output voltage of string, binding post of its output end respectively with signal transacting and output module is connected.
Further preferably, described alarm element is connected with the output end of signal transacting and output module.
Further preferably, described alarm element is LED and/or buzzer.
Further preferably, when between three voltages of substring of the photovoltaic module of component substring voltage acquisition module collection
Difference when reaching a predetermined value, the signal transacting and output module send alarm signal by alarm element.
Further preferably, the voltage sum of three substrings of the photovoltaic module for being gathered when the component substring voltage acquisition module
During less than a predetermined value, the signal transacting and output module send alarm signal by alarm element.
A kind of inexpensive alarm type photovoltaic component terminal box of the invention, sets solar components failure prison in terminal box
Slowdown monitoring circuit, using the self-powered set up, effective monitoring can be carried out to photovoltaic module working condition and is sent when failure occurs
Warning message, structure easily realizes, low cost, effect is good and the investment repayment time is short, non-maintaining, it is to avoid corded power carrier wave
There is high cost, investment time shortcoming long with wireless telecommunications monitoring.
Brief description of the drawings
By detailed description below in conjunction with the accompanying drawings, the present invention is foregoing will to be become with other objects, features and advantages
Obviously.Wherein：
Fig. 1 show a kind of structural representation of inexpensive alarm type photovoltaic component terminal box of the invention；
Fig. 2 show the comprising modules schematic diagram of the monitoring alarm unit of the terminal box of Fig. 1；
Fig. 3 show the circuit theory diagrams of the power module of the monitoring alarm unit of the terminal box of Fig. 1；
Fig. 4 show the circuit theory diagrams of the component substring voltage acquisition module of the monitoring alarm unit of the terminal box of Fig. 1；
Fig. 5 show the signal transacting and the circuit theory diagrams of output module of the monitoring alarm unit of the terminal box of Fig. 1.
Specific embodiment
With reference to accompanying drawing, details are as follows for structure of the invention, principle and advantage.
The structural representation of the of the invention a kind of inexpensive alarm type photovoltaic component terminal box shown in reference picture 1, it is described
Terminal box include box body 10, binding post 121,122,123 and 124 is provided with it in, often between two neighboring binding post
Connected by diode 101；Voltage output positive pole 14 and negative pole 16；Monitoring alarm unit 20, which is provided with alarm element 22, institute
The monitoring alarm unit 20 stated is electrically connected by wire with each binding post.Reference picture 2, described monitoring alarm unit
20 include monitoring alarm unit power module, component substring voltage acquisition module and signal transacting and output module.
With reference to accompanying drawing 3 to 5, the monitoring warning of terminal box of the invention is described in detail as a example by including three components of substring
The structure composed and operation principle of unit 20 are as follows.
The circuit theory diagrams of the power module of the monitoring alarm unit shown in reference picture 3, power module is controllable using TL431
Precision voltage regulator circuit, its positive pole P and negative pole N are connected with the positive pole 14 and negative pole 16 of terminal box respectively, its output end VDD with letter
Number treatment and output module input connect (referring to Fig. 5)；Reference picture 4, the input PV+ of component substring voltage acquisition module
A, PV+B, PV+C correspond to three output voltages of group string of battery component, its output end PV+A1, PV+B1, PV+C1 difference respectively
It is connected with the binding post of signal transacting and output module (reference picture 5), alarm element 22 and signal transacting and output module
Output end is connected, one preferred embodiment in, described alarm element 22 is LED and/or buzzer.
Inexpensive alarm type photovoltaic component terminal box of the invention, by power module from solar components self-powered,
NPN type triode is controlled by TL431 precision shunts conditioned circuit, solar components input voltage is converted into 3.3V stabilizations
Voltage.The input voltage range of this circuit is extremely wide, can reach 10V to 75V, can cover current all solar components.
Component substring voltage acquisition module gathers 3 substrings of solar photovoltaic assembly by 8 single-chip microcomputers respectively
Voltage, is compared to the output voltage of three substrings of component and the value of voltage addition is judged, specific voltage
Comparing method is：1st, judge whether three voltages of substring of solar photovoltaic assembly are close, if three substrings differ greatly
(such as than more than or equal to 3V), single-chip microcomputer judges failure after being processed collection value, is flashed by alarm element such as LED
And/or buzzer call is pointed out；2：When assembly surface has foreign matter to block, component can be caused to export the relatively low (ratio of total voltage output
Such as less than be equal to 31V), single-chip microcomputer to collection value be compared treatment after judge failure, by alarm element such as LED flicker or/
And buzzer call is pointed out.
A kind of inexpensive alarm type photovoltaic component terminal box of the invention, sets solar components failure prison in terminal box
Slowdown monitoring circuit, using the self-powered set up, can enter to the substring working condition and the working condition of whole component in photovoltaic module
Row effective monitoring and the alert when failure occurs, structure easily realizes, low cost, and effect is good and the investment repayment time
It is short, it is non-maintaining.
The invention is not limited in described embodiment, those skilled in the art is not departing from spirit of the invention i.e. public affairs
In the range of opening, can still make some amendments or change, thus the scope that is limited with claims of the scope of the present invention as
It is accurate.
Claims (7)
1. a kind of inexpensive alarm type photovoltaic component terminal box, it is characterised in that the terminal box includes box body, is provided with it
Multiple binding posts, are connected between every two neighboring binding post by diode；Voltage output positive pole and negative pole；Monitoring warning
Unit, which is provided with alarm element, and described monitoring alarm unit is connected respectively by wire with each binding post；Described
Monitoring alarm unit includes monitoring alarm unit power module, component substring voltage acquisition module and signal transacting and output mould
Block.
2. a kind of inexpensive alarm type photovoltaic component terminal box as claimed in claim 1, it is characterised in that described power supply mould
Block uses TL431 controllable accurate voltage stabilizing source circuits, and its positive pole and negative pole are connected with the positive pole and negative pole of terminal box respectively, its output
End is connected with the input of signal transacting and output module.
3. a kind of inexpensive alarm type photovoltaic component terminal box as claimed in claim 2, it is characterised in that the component substring
The input of voltage acquisition module corresponds to three output voltages of group string of single battery component respectively, its output end respectively with letter
Number treatment and output module binding post connection.
4. a kind of inexpensive alarm type photovoltaic component terminal box as claimed in claim 3, it is characterised in that described alarm unit
Part is connected with the output end of signal transacting and output module.
5. a kind of inexpensive alarm type photovoltaic component terminal box as claimed in claim 4, it is characterised in that described alarm unit
Part is LED and/or buzzer.
6. a kind of inexpensive alarm type photovoltaic component terminal box as claimed in claim 1, it is characterised in that when component
When difference between three voltages of substring of the photovoltaic module of string voltage acquisition module collection reaches a predetermined value, the signal
Treatment and output module send alarm signal by alarm element.
7. a kind of inexpensive alarm type photovoltaic component terminal box as claimed in claim 1, it is characterised in that when component
String voltage acquisition module collection photovoltaic module three substrings voltage sum be less than a predetermined value when, the signal transacting and
Output module sends alarm signal by alarm element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179609.3A CN106803739A (en) | 2017-03-23 | 2017-03-23 | A kind of inexpensive alarm type photovoltaic component terminal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179609.3A CN106803739A (en) | 2017-03-23 | 2017-03-23 | A kind of inexpensive alarm type photovoltaic component terminal box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106803739A true CN106803739A (en) | 2017-06-06 |
Family
ID=58981468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710179609.3A Pending CN106803739A (en) | 2017-03-23 | 2017-03-23 | A kind of inexpensive alarm type photovoltaic component terminal box |
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| Country | Link |
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| CN (1) | CN106803739A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417348A (en) * | 2018-04-28 | 2019-11-05 | 北京汉能光伏投资有限公司 | Solar assembly junction box, solar energy system and solar components control method |
Citations (5)
| 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 |
| CN205407728U (en) * | 2016-02-24 | 2016-07-27 | 广州硕耐节能光电技术有限公司 | Photovoltaic combiner box |
| CN105978485A (en) * | 2016-07-01 | 2016-09-28 | 云南犀鸟科技有限公司 | Method and system for online detection of photovoltaic modules |
| CN106160660A (en) * | 2016-08-30 | 2016-11-23 | 中国华能集团清洁能源技术研究院有限公司 | photovoltaic module fault monitoring system |
| CN206559311U (en) * | 2017-03-23 | 2017-10-13 | 苏州快可光电科技有限公司 | A kind of inexpensive alarm type photovoltaic component terminal box |
-
2017
- 2017-03-23 CN CN201710179609.3A patent/CN106803739A/en active Pending
Patent Citations (5)
| 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 |
| CN205407728U (en) * | 2016-02-24 | 2016-07-27 | 广州硕耐节能光电技术有限公司 | Photovoltaic combiner box |
| CN105978485A (en) * | 2016-07-01 | 2016-09-28 | 云南犀鸟科技有限公司 | Method and system for online detection of photovoltaic modules |
| CN106160660A (en) * | 2016-08-30 | 2016-11-23 | 中国华能集团清洁能源技术研究院有限公司 | photovoltaic module fault monitoring system |
| CN206559311U (en) * | 2017-03-23 | 2017-10-13 | 苏州快可光电科技有限公司 | A kind of inexpensive alarm type photovoltaic component terminal box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417348A (en) * | 2018-04-28 | 2019-11-05 | 北京汉能光伏投资有限公司 | Solar assembly junction box, solar energy system and solar components control method |
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| PB01 | Publication | ||
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Application publication date: 20170606 |