CN208299749U - Photovoltaic junction box can be monitored - Google Patents
Photovoltaic junction box can be monitored Download PDFInfo
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- CN208299749U CN208299749U CN201820447803.5U CN201820447803U CN208299749U CN 208299749 U CN208299749 U CN 208299749U CN 201820447803 U CN201820447803 U CN 201820447803U CN 208299749 U CN208299749 U CN 208299749U
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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
Photovoltaic junction box can be monitored.It is related to field of photovoltaic power generation more particularly to a kind of intelligent monitoring photovoltaic junction box.Provide it is a kind of bypass diode damage when can be effectively reduced photovoltaic module power consumption and safety it is good monitor photovoltaic junction box.Photovoltaic junction box can be monitored, it is connected in parallel on photovoltaic module, the photovoltaic module includes the photovoltaic cell of several series connections, including bypass diode component and clamp diode DX, the bypass diode component is parallel on the photovoltaic electrification component, and the clamp diode DX is connected in parallel on the bypass diode component.The utility model improves system effectiveness, reduces internal power consumption when system operates normally, and ensured terminal box stablizes safe operation, has ensured the safety of Field Force.
Description
Technical field
The utility model relates to field of photovoltaic power generation more particularly to a kind of intelligent monitoring photovoltaic junction boxes.
Background technique
As greatly developing for photovoltaic power generation, especially distributed power station are in resident, industrial and mining enterprises roof power station it is a large amount of
With to the safety of system, more stringent requirements are proposed.Photovoltaic plant is often made of multiple groups power generation module group in series and parallel.System
Voltage reaches hundreds of upper kilovolts.And traditional photovoltaic power generation mould group uses common terminal box directly and internal current conductor busbar phase
Connection, inside can not turn off, as long as there is illumination that will generate voltage and current, installation, operation maintenance personnel and disaster occurs in this
When rescue personnel produce great danger.And the photovoltaic power generation mould group enormous amount due to constituting power station, when blocking
Or user is difficult to find when failure, even and if have found and be also difficult to navigate to that specifically problem occurs for which mould group, to O&M
Management causes very big difficulty.On the one hand entire photovoltaic electrification component can be damaged, on the other hand increases entire light
The power consumption of component is lied prostrate, easily generation safety accident.
State Intellectual Property Office 2016-12-21 discloses a utility model patent, and (205829562 U of CN is used for light
Lie prostrate the freewheeling circuit and terminal box of component) disclose a kind of freewheeling circuit and terminal box for photovoltaic module.The afterflow electricity
Road includes providing the continued flow switch (4,5,6) of afterflow function, and the freewheeling circuit, which has, is up to 4 milliohms (m Ω) at 25 DEG C
And it is up to the resistance of 7 milliohms (m Ω) at 125 DEG C.Parasitic diode is made to be in optimal work using cooling device
Make temperature, this makes it possible to reduce the power consumption of parasitic diode at work to reduce heating efficiency.This mode is only capable of dropping
The shell temperature of low diode, the temperature inside diode still do not reduce, and are unfavorable for the steady operation of diode.
Utility model content
The utility model can be effectively reduced photovoltaic group in bypass diode damage in view of the above problems, providing one kind
Part power consumption and safety it is good monitor photovoltaic junction box.
The technical solution of the utility model is: photovoltaic junction box can be monitored, is connected in parallel on photovoltaic module, the photovoltaic module
Photovoltaic cell including several series connections, including bypass diode component and clamp diode DX, the bypass diode set
Part is parallel on the photovoltaic electrification component, and the clamp diode DX is connected in parallel on the bypass diode component；
The photovoltaic junction box that monitors further includes pulse switch and control circuit board, one end connection of the pulse switch
Onto photovoltaic module, the other end of the pulse switch is connect with the cathode of the clamp diode, the pulse switch and control
Circuit board processed is connected by signal wire, and the control circuit board controls pulse switch on-off.
The bypass diode component includes several bypass diode D1 ~ Dn, several bypass diode series aiding connections,
The clamp diode DX is connected in parallel on the both ends of the bypass diode component of series aiding connection, on each photovoltaic cell
A bypass diode in parallel.
The photovoltaic module includes the photovoltaic cell M1 being sequentially connected in series, photovoltaic cell M2 and photovoltaic cell M3, the bypass
Diode assembly includes bypass diode D1 ~ bypass diode D3；
The upper parallel connection bypass diode D2 of bypass diode D1, the photovoltaic cell M2 in parallel, institute on the photovoltaic cell M1
The anode of the cathode connection bypass diode D2 of parallel connection bypass diode D3, the bypass diode D1 on photovoltaic cell M3 are stated,
The anode of the cathode connection bypass diode D3 of the bypass diode D2, the anode of the two pole DX of clamper and the bypass two
The anode of pole pipe D1 connects, and the cathode of the clamp diode DX is connect with the cathode of the bypass diode D3, the clamper
Pulse switch is equipped between the cathode of diode DX and the cathode of the bypass diode D3；
One end of the control circuit board connects the anode and ground terminal of the bypass diode D1, the control circuit board
The other end connect with the pulse switch, for the control circuit board power；
The control circuit board is equipped with detection line, and one end of the detection line is connect with the control circuit board, described
The other end of detection line is connect with the pulse switch, detects the end voltage of the pulse switch；
The control circuit board connects the pulse switch by signal wire, sends instruction to the pulse switch.
The control circuit board includes power conversion module, radio receiving transmitting module, sensor module and central processing unit, institute
Stating sensor module can monitor in photovoltaic junction box set on described, including voltage sensor, current sensor and hygrosensor,
The voltage sensor, current sensor are respectively placed on photovoltaic electrification component, and the voltage sensor and the electric current pass
Sensor passes through signal wire respectively and connect with the central processing unit；
The power conversion module is the MP1584EN chip being integrated on central processing unit, and the radio receiving transmitting module is
The CC1101 chip or HZ3011 chip being integrated on the central processing unit, the central processing unit are at STM32F030F4
Manage device.
Host computer can read the number of each photovoltaic module by control circuit board in the utility model, send out in some photovoltaic
It can be positioned by photovoltaic module of the control circuit board to the number when electrical component failure, when control circuit board is sent
When fault message host computer can quick positioning control circuit plate position, enable maintenance when positioning failure in time photovoltaic
Component, when photovoltaic cell has that when blocking or damaging partially or in whole, control panel can detect failure in time in photovoltaic module
Information, such as component numerals, operating voltage, component temperature report host computer.Operation management is greatly facilitated, overhaul efficiency is improved.
After having the presence of clamp diode Dx, pulse switch to disconnect, pulse switch both end voltage is clamped at this group
In the difference of part output voltage and Dx conducting voltage, only about 36V or hereinafter, within the scope of the human safety voltage is not needed
The voltage for bearing the power generation of other photovoltaic modulies, reduces the resistance to pressure request to pulse switch, improves the reliability of pulse switch
And the service life.
Pulse switch is used as device for power switching using self-retaining magnetoelectricity switch, and high temperature resistance is good, solves general
Voluntarily puncture under semiconductor devices high temperature, causes the shortcomings that being unable to reliable turn-off.Meanwhile self-retaining magnetoelectricity switch is only executing
When receive pulse control signal, not needing continued power can be held on or off state for a long time, and usually not power consumption, mentions
System effectiveness has been risen, internal power consumption when system operates normally is reduced, it is energy saving.
When the multiple units of some photovoltaic electrification component block or failure or pulse switch damage, utilization is increased
One clamp diode forms new access, it is only necessary to undertake the power consumption of a clamp diode, power consumption is greatly reduced, and reduces
The power consumption of bypass diode, also just reduces heat generation rate, so that terminal box will not be bypassed the accumulated heat damage of diode, extension is connect
The service life of wire box, due to small power consumption, clamp diode can use general-purpose diode, also avoid Schottky diode
The defect that reverse withstand voltage is low, leakage current is big, ensured terminal box stablizes safe operation.
It, can be taking human as passing through host computer when natural calamity occurring or any other needs personnel to enter assembly array scene
To control panel send " shutdown " instruction, then control panel can issue shutdown pulse, make pulse switch act thus cutting assembly it is defeated
Out, the safety of Field Force has been ensured.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model,
Fig. 2 is the current trend figure one of the utility model,
Fig. 3 is the current trend figure two of the utility model,
Fig. 4 is the use state of the utility model with reference to figure,
Fig. 5 is the optimal enforcement mode structural schematic diagram of the utility model,
Fig. 6 is the optimal enforcement mode current trend figure one of the utility model,
Fig. 7 is the optimal enforcement mode current trend figure two of the utility model,
Fig. 8 is the optimal enforcement mode use state of the utility model with reference to figure,
Dotted arrow is current trend in figure.
Specific embodiment
The utility model can monitor photovoltaic junction box as shown in figures 1-8, be connected in parallel on photovoltaic module, the photovoltaic module packet
The photovoltaic cell (M1 ~ Mn) for including several series connections, can monitor photovoltaic junction box includes two pole of bypass diode component and clamper
Pipe DX, the bypass diode component are parallel on the photovoltaic electrification component, and the clamp diode DX is connected in parallel on the side
On the diode assembly of road；When photovoltaic electrification component blocks or when failure, is formed newly using an increased clamp diode
Access, it is only necessary to undertake the power consumption of a clamp diode, power consumption is greatly reduced, reduce bypass diode component function
Consumption, also just reduces heat generation rate, so that terminal box will not be bypassed the accumulated heat damage of diode assembly, extends the use of terminal box
Service life it is reversed can also to avoid Schottky diode using general-purpose diode as clamp diode because power consumption reduces
It is resistance to force down, the defect that leakage current is big, ensured terminal box stablize safe operation.
The photovoltaic junction box that monitors further includes pulse switch and control circuit board, one end difference of the pulse switch
Connection photovoltaic module and bypass diode component, the other end of the pulse switch are connect with the cathode of the clamp diode,
The pulse switch is connect with control circuit board by signal wire, and the control circuit board controls pulse switch on-off.Work as pulse
The clamp diode continues as a group string afterflow when switch disconnection, so that should be by between pulse switch and other photovoltaic modulies
The access of formation transfers do not influencing other photovoltaic modulies hair using access is formed between clamp diode and other photovoltaic modulies
While electric, so that end voltage clamping the leading in this component output voltage and clamp diode at the pulse switch both ends of disconnection
The difference (about 36V or so) for the pressure that is powered, that is to say, that when pulse switch disconnects, original power output circuit is disconnected, then from
Clamp diode output, in this way after pulse switch disconnection, pulse switch both ends do not need to bear the power generation of other photovoltaic modulies
Voltage, that is, by the voltage clamping at pulse switch both ends on lower voltage level (36V or so), the safety in human body
In voltage range, the resistance to pressure request to pulse switch is reduced.
If because sunlight blocked, in the case where the damage of photovoltaic module failure or pulse switch, this clamp diode
It can play the role of bypass, and due to the clamping action of the clamp diode, so that the power consumption on bypass diode can be obvious
It reduces, power consumption is about the 1/3 of conventional electrical connectors when especially occurring seriously to block, and reduces junction box temperature, improving can
By property.
Device for power switching is used as using pulse switch (self-retaining magnetoelectricity switch), high temperature resistance is good, solves one
As voluntarily puncture under semiconductor devices high temperature, cause the shortcomings that being unable to reliable turn-off.Meanwhile self-retaining magnetoelectricity switch is only being held
Receive pulse control signal when row, and do not need continued power to be held on for a long time or off state, does not consume usually
Electricity improves system effectiveness, reduces internal power consumption when system operates normally, energy saving.
Control circuit board detects the end voltage at pulse switch both ends by detection line, when the end for detecting pulse switch both ends
When voltage is close, control circuit board just can determine that pulse switch is connected successfully, when detecting pulse switch opening state
Under end voltage it is not close when, then can determine that pulse switch is opened abnormal at this time, can pass through at this time according to information of voltage
Control circuit board sends a signal to host computer, prompts staff's maintenance.That is when pulse switch generation event in terminal box
When barrier, it can judge whether pulse switch breaks down, and pass through corresponding control circuit by detecting pulse switch both end voltage
The number of plate reports host computer and staff in time, searches fault point convenient for staff and carries out maintenance replacement in time.
Control circuit board is able to detect the voltage condition that photovoltaic module exports at work, controls when electric voltage exception reduces
Circuit board can also send a signal to host computer in time, so that host computer notifies staff to overhaul in time.
The bypass diode component includes several bypass diodes, several bypass diode series aiding connections, described
Clamp diode DX is connected in parallel on the concatenated bypass diode both ends, a bypass in parallel on each photovoltaic cell
Diode.
When photovoltaic cell blocks or damages, corresponding bypass diode conducting, by the corresponding photovoltaic for blocking or damaging
Cell bypass prevents the photovoltaic cell both ends of damage from being formed so that other photovoltaic cells in same photovoltaic module are working properly
High voltage causes the photovoltaic cell for blocking or damaging to be damaged because of overheat.When photovoltaic cells multiple in component are blocked or damaged
Bad when, clamp diode conducting do not influence and other concatenated photovoltaic groups of the photovoltaic module so that entire photovoltaic module is bypassed
The working condition of part.So that should transfer to use two pole of clamper by the access formed between pulse switch and other photovoltaic modulies
Access is formed between pipe and other photovoltaic modulies.That is when some assembly unit blocks or failure, corresponding side
Road diode opens afterflow, and being not this corresponding unit influences the work of other components and unit.Meanwhile it also protecting certainly
Body not because over-voltage or overheat caused by bigger loss.And when units multiple in some component block or when failure, two pole of clamper
Pipe conducting, so that multiple diodes convince fever by patient analysis and become only clamp diode fever in conventional electrical connectors, power consumption greatly reduced,
Improve system effectiveness.
If because of individual diode itself punch through damage, because the voltage and current of other components is forced through, can cause into
One step fever the shortcomings that leading to more major break down, clamper protection is provided to damage diode by clamp diode, avoid accident into
One step expands.
Due to the presence of clamp diode, so that the end voltage clamping at pulse switch both ends is in this component output voltage and pincers
The difference (about 36V or following) of the conducting voltage of position diode, that is to say, that when pulse switch disconnects, original power output is returned
Road disconnects, then exports from clamp diode, and in this way after pulse switch disconnection, pulse switch both ends do not need to bear other light
The voltage for lying prostrate component power generation, reduces the resistance to pressure request to pulse switch, pulse switch is protected not damaged by affected by high.
By photovoltaic module that three photovoltaic cells are constituted and it is corresponding for, the working principle of this case is described in detail.It is described
Photovoltaic module includes the photovoltaic cell M1 being sequentially connected in series, photovoltaic cell M2 and photovoltaic cell M3, the bypass diode component packet
Include bypass diode D1 ~ bypass diode D3；
The upper parallel connection bypass diode D2 of bypass diode D1, the photovoltaic cell M2 in parallel, institute on the photovoltaic cell M1
The anode of the cathode connection bypass diode D2 of parallel connection bypass diode D3, the bypass diode D1 on photovoltaic cell M3 are stated,
The anode of the cathode connection bypass diode D3 of the bypass diode D2, the anode of the two pole DX of clamper and the bypass two
The anode of pole pipe D1 connects, and the cathode of the clamp diode DX is connect with the cathode of the bypass diode D3, the clamper
Pulse switch is equipped between the cathode of diode DX and the cathode of the bypass diode D3；
The both ends of each photovoltaic cell bypass diode in parallel, and three bypass diode bypass diodes in series
Component, in a bypass diode component both ends clamp diode in parallel, the clamper if three photovoltaic cells all block
Diode current flow, power consumption are only the power consumption that single clamp diode forward voltage drop is formed, and are far smaller than only adopted in the prior art
The power consumption formed with bypass diode.
Assuming that the electric current flowed through is 8A, the forward voltage drop of each diode is 0.5V, while in bypass diode component
There are three for bypass diode, then when not having clamp diode, terminal box will undertake the loss of 0.5V*8A*3=12W, and
When a clamp diode in parallel in bypass diode component, it is only necessary to undertake the loss of a clamp diode i.e.
The loss of 0.5V*8A=4W, power consumption are greatly reduced, and reduce the power consumption of bypass diode, also just reduce heat generation rate, so that connecing
Wire box will not be bypassed the accumulated heat damage of diode, extend the service life of terminal box, simultaneously because lower power consumption, can use
General-purpose diode also avoids the defect that Schottky diode reverse withstand voltage is low, leakage current is big as clamp diode, protects
Hindered terminal box stablizes safe operation.
Assuming that the electric current flowed through is 8A, the forward voltage drop of each diode is 0.5V, while in bypass diode component
There are three for bypass diode, when occurring, one of photovoltaic cell is blocked and just corresponding bypass diode damages
When breakdown, at this point, the bypass diode of breakdown is equivalent to a low resistance (about 100 Ω of resistance value) depositing due to clamp diode
, the voltage at the bypass diode both ends punctured at this time is clamped at lower value, by taking photovoltaic electrification component is 32V component as an example,
The voltage at the bypass diode both ends of breakdown is clamped at 24V or so, and power consumption is 5.76W at this time, still is below in the prior art
Power consumption.So that terminal box will not be bypassed the accumulated heat damage of diode, extend the service life of terminal box, simultaneously because using
General-purpose diode, also avoids the defect that Schottky diode reverse withstand voltage is low, leakage current is big, has ensured the steady of terminal box
Fixed safe operation.
One end of the control circuit board is separately connected the anode and ground terminal of the bypass diode D1, the control electricity
The other end of road plate is connect with the pulse switch, is powered for the control circuit board；The control circuit board is equipped with detection
Line, one end of the detection line are connect with the control circuit board, and the other end of the detection line is connect with the pulse switch,
Detect the end voltage of the pulse switch；The control circuit board connects the pulse switch by signal wire, gives the pulse
Switch sends instruction.Control circuit board detects the end voltage at pulse switch both ends by detection line.During pulse switch is opened,
When the end voltage for detecting pulse switch both ends is close, control circuit board just can determine pulse switch success, pulse switch
Under off state, the voltage at detection pulse switch upper end (the namely cathode of clamp diode) end should be close with its conducting voltage
(about 0.5 ~ 0.7V) then can determine that pulse switch turns off normal at this time according to information of voltage, otherwise can criterion pulse switch not
Energy normal turn-off, can send a signal to host computer by control circuit board at this time, prompt staff's maintenance.
It is then able to detect the voltage condition that photovoltaic module exports at work when pulse switch is in the conductive state, works as electricity
Control circuit board can also send a signal to host computer in time when reduce off-flavor often reduces, so that host computer notifies work in time
Make personnel's maintenance.
The control circuit board includes power conversion module, radio receiving transmitting module, sensor module and central processing unit, institute
Stating sensor module can monitor in photovoltaic junction box set on described, including voltage sensor, current sensor and hygrosensor,
The voltage sensor, current sensor are respectively placed on photovoltaic electrification component, and the voltage sensor and the electric current pass
Sensor passes through signal wire respectively and connect with the central processing unit；The power conversion module is to be integrated on central processing unit
MP1584EN chip, the radio receiving transmitting module are the CC1101 chip or HZ3011 core being integrated on the central processing unit
Piece, the central processing unit are STM32F030F4 processor.Host computer can read the component numerals in control circuit board first,
When control circuit board sends fault message host computer can quick positioning control circuit plate position, that is to say, that with control electricity
The number of road plate positions corresponding component, enable maintenance when positioning failure in time photovoltaic cell, improve overhaul efficiency.It is logical
Voltage sensor, current sensor and the temperature sensor crossed in control circuit board detect the state of photovoltaic module, so that
Control circuit board can judge whether photovoltaic module is normal, facilitate user maintenance management, increase working efficiency, improve response speed
Degree.
The working method that photovoltaic junction box can be monitored, when in photovoltaic module photovoltaic cell not all damage and bypass diode
When not breakdown, work step is as follows:
A1 corresponding photovoltaic module number) can be stored in control circuit board, when one of control circuit board is sent information to
Host computer can determine rapidly the position of the photovoltaic module when host computer, so as to reduce maintenance positioning time, promote maintenance
Efficiency.
A2) the corresponding bypass diode conducting in parallel of the photovoltaic cell damaged,
A2.1) voltage sensor detects photovoltaic component voltage, and when photovoltaic cell breaks down, voltage declines,
A2.2) temperature sensor transmits temperature signal, if photovoltaic cell corresponding bypass diode breakdown, temperature at this time
Rise,
A3) voltage, the electric current that control circuit board receives damage assembly unit decline,
A3.1) control circuit board calculates voltage fall by the voltage after failure compared with the voltage before failure,
A3.2) bypass diode or clamp diode conducting, the photovoltaic module of non-failure work normally, and clamp diode is led
Logical, so that multiple diodes open fever and become only clamp diode fever in conventional electrical connectors, power consumption is greatly reduced, and improves
System effectiveness.
A4) faulty component numerals and parameter are sent to host computer by control circuit board, and staff is notified to overhaul；It can
Manually by host computer, into each component, circuit board sends " shutdown " signal, then corresponding component output is cut off by pulse switch.
Support personnel's safety and reduction causality loss.It can judge whether pulse switch occurs event by detecting pulse switch both end voltage
Barrier, and host computer and staff are reported by the number of corresponding control circuit board in time, failure is searched convenient for staff
Point simultaneously carries out maintenance replacement in time.
The working method that photovoltaic junction box can be monitored, when units multiple in photovoltaic module damage or multiple bypass diodes are led
When logical, work step is as follows:
B1 corresponding photovoltaic module number) can be stored in control circuit board,
B2) clamp diode is connected, which is bypassed,
B3) remaining photovoltaic module continues to generate electricity because of clamp diode forming circuit,
When natural calamity occurring or any required personnel enter assembly array scene, it can manually pass through host computer to each group
Circuit board sends " shutdown " signal in part, then corresponding component output is cut off by pulse switch.Support personnel's safety and reduction thing
Therefore it loses.
Claims (4)
1. photovoltaic junction box can be monitored, it is connected in parallel on photovoltaic module, the photovoltaic module includes the photovoltaic electric of several series connections
Pond, which is characterized in that including bypass diode component and clamp diode DX, the bypass diode component is parallel to the light
It lies prostrate on electrification component, the clamp diode DX is connected in parallel on the bypass diode component；
The photovoltaic junction box that monitors further includes pulse switch and control circuit board, and one end of the pulse switch is connected to light
It lies prostrate on component, the other end of the pulse switch is connect with the cathode of the clamp diode, the pulse switch and control electricity
Road plate is connected by signal wire, and the control circuit board controls pulse switch on-off.
2. according to claim 1 monitor photovoltaic junction box, which is characterized in that if the bypass diode component includes
Dry bypass diode D1 ~ Dn, several bypass diode series aiding connections, the clamp diode DX are connected in parallel on series aiding connection
The both ends of the bypass diode component, a bypass diode in parallel on each photovoltaic cell.
3. according to claim 2 monitor photovoltaic junction box, which is characterized in that the photovoltaic module includes being sequentially connected in series
Photovoltaic cell M1, photovoltaic cell M2 and photovoltaic cell M3, the bypass diode component includes bypass diode D1 ~ bypass two
Pole pipe D3；
The upper parallel connection bypass diode D2 of bypass diode D1, the photovoltaic cell M2 in parallel, the light on the photovoltaic cell M1
Lie prostrate the cathode connection bypass two of parallel connection bypass diode D3, the bypass diode D1 on parallel connection bypass diode D3 on battery M3
The anode of pole pipe D2, the anode of the cathode connection bypass diode D3 of the bypass diode D2, the sun of the two pole DX of clamper
Pole is connect with the anode of the bypass diode D1, the cathode of the clamp diode DX and the bypass diode D, 3 yin
Pole connection, is equipped with pulse switch between the cathode of the clamp diode DX and the cathode of the bypass diode D3；
One end of the control circuit board connects the anode and ground terminal of the bypass diode D1, the control circuit board it is another
One end is connect with the pulse switch, is powered for the control circuit board；
The control circuit board is equipped with detection line, and one end of the detection line is connect with the control circuit board, the detection
The other end of line is connect with the pulse switch, detects the end voltage of the pulse switch；
The control circuit board connects the pulse switch by signal wire, sends instruction to the pulse switch.
4. according to claim 1 to 3 monitor photovoltaic junction box, which is characterized in that the control circuit board includes
Power conversion module, radio receiving transmitting module, sensor module and central processing unit, the sensor module can be monitored set on described
In photovoltaic junction box, including voltage sensor, current sensor and hygrosensor, the voltage sensor, current sensor
Be respectively placed on photovoltaic electrification component, and the voltage sensor and the current sensor pass through respectively signal wire and it is described in
Central processor connection；
The power conversion module is the MP1584EN chip being integrated on central processing unit, and the radio receiving transmitting module is integrated
CC1101 chip or HZ3011 chip on the central processing unit, the central processing unit are STM32F030F4 processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820447803.5U CN208299749U (en) | 2018-03-29 | 2018-03-29 | Photovoltaic junction box can be monitored |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820447803.5U CN208299749U (en) | 2018-03-29 | 2018-03-29 | Photovoltaic junction box can be monitored |
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| Publication Number | Publication Date |
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| CN208299749U true CN208299749U (en) | 2018-12-28 |
Family
ID=64695193
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| CN201820447803.5U Active CN208299749U (en) | 2018-03-29 | 2018-03-29 | Photovoltaic junction box can be monitored |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462465A (en) * | 2018-03-29 | 2018-08-28 | 江苏通灵电器股份有限公司 | One kind can monitor photovoltaic junction box and its working method |
| CN109672404A (en) * | 2019-03-05 | 2019-04-23 | 海宁昱能电子有限公司 | A kind of intelligent photovoltaic component |
| CN113675892A (en) * | 2021-09-27 | 2021-11-19 | 阳光电源股份有限公司 | Photovoltaic power generation system, control method thereof and power converter |
-
2018
- 2018-03-29 CN CN201820447803.5U patent/CN208299749U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462465A (en) * | 2018-03-29 | 2018-08-28 | 江苏通灵电器股份有限公司 | One kind can monitor photovoltaic junction box and its working method |
| CN109672404A (en) * | 2019-03-05 | 2019-04-23 | 海宁昱能电子有限公司 | A kind of intelligent photovoltaic component |
| CN113675892A (en) * | 2021-09-27 | 2021-11-19 | 阳光电源股份有限公司 | Photovoltaic power generation system, control method thereof and power converter |
| CN113675892B (en) * | 2021-09-27 | 2024-05-14 | 阳光电源股份有限公司 | Photovoltaic power generation system, control method thereof and power converter |
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