CN103888064A - Remote monitor type photovoltaic connecting box based on semiconductor temperature measurement and RFID transmission - Google Patents
Remote monitor type photovoltaic connecting box based on semiconductor temperature measurement and RFID transmission Download PDFInfo
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- CN103888064A CN103888064A CN201410133289.4A CN201410133289A CN103888064A CN 103888064 A CN103888064 A CN 103888064A CN 201410133289 A CN201410133289 A CN 201410133289A CN 103888064 A CN103888064 A CN 103888064A
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- temperature measurement
- diode
- photovoltaic
- semiconductor temperature
- diode string
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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
Abstract
The invention discloses a remote monitor type photovoltaic connecting box based on semiconductor temperature measurement and RFID transmission. The remote monitor type photovoltaic connecting box comprises a diode string, photovoltaic cable interfaces, semiconductor temperature measurement circuit modules and an MCU microprocessor. The diode string comprises a plurality of diodes connected in series in the same direction, the number of the diodes is equal to that of photovoltaic cells, and the diodes and the photovoltaic cells are in one-to-one correspondence and are connected in parallel. The two photovoltaic cable interfaces are connected to the two ends of the diode string respectively. The semiconductor temperature measurement circuit modules are connected to lines of the diodes in the diode string respectively, and the output ends of the semiconductor temperature measurement circuit modules are connected with the MCU microprocessor. The MCU microprocessor is connected with a control host outside the photovoltaic connecting box through RFID. Semiconductor temperature measurement circuits are adopted to detect the temperature of the diode string, the MCU microprocessor with the monitor function is integrated, and when a semiconductor detects that the temperature of the diodes is too high, the monitored abnormal state is transmitted to the control host through the RFID, and real-time monitor on the temperature of the photovoltaic connecting box is achieved.
Description
Technical field
The present invention relates to field of photovoltaic power generation, relate in particular to the photovoltaic junction box being applied in photovoltaic generating system, particularly the remote monitoring type photovoltaic junction box of a kind of based semiconductor thermometric and RFID transmission.
Background technology
In the electric connection technology of photovoltaic generating system, conventionally adopting photovoltaic junction box to realize photovoltaic module is the electrical connection between solar battery group and inverter.Current photovoltaic junction box arranges an installation cavity between box body, is arranged in installation cavity with the conducting strip of diode.The quantity of diode is identical with the quantity of solar cell, and with solar cell one by one correspondence be connected in parallel.The effect of diode is to utilize the principle of its forward conduction, oppositely cut-off to prevent that reverse charging from damaging solar battery group, and prevents that the solar cell from opening circuit and cause whole solar battery group all cannot use.When solar battery group all when normal, do not have electric current to flow through diode; When having a solar cell because fortuitous event is cannot normal power generation time, diode protection state starts, and has larger electric current and flows through diode.Because diode is wanted the electric current of the about 10A of conducting in when work, can cause a large amount of hot stacks, produce higher temperature, along with the continuous rising of diode temperature, resistance in diode will constantly increase, cause diode to produce more heat, enter vicious circle thereby waste more electric power resource.Therefore, in order to guarantee the reliably working of photovoltaic junction box, the temperature of diode can not be very high, and the real-time monitoring of temperature is seemed to particularly important.
Summary of the invention
For the problems referred to above of existing photovoltaic junction box, applicant, through Improvement, provides the remote monitoring type photovoltaic junction box of a kind of based semiconductor thermometric and RFID transmission, realizes the real-time monitoring of photovoltaic junction box temperature.
Technical scheme of the present invention is as follows:
The remote monitoring type photovoltaic junction box of a kind of based semiconductor thermometric and RFID transmission, comprise the upper cover and the base that mutually cover, between upper cover and base, form cavity, in described cavity, comprise diode string, photovoltaic cable interface, semiconductor temperature measurement circuit module and MCU microprocessor; Described diode string comprises the diode of multiple series aiding connections, and the quantity of diode is identical with the quantity of photovoltaic cell, and with photovoltaic cell one by one correspondence be connected in parallel; Described photovoltaic cable interface has two, is connected to respectively the two ends of diode string; Described semiconductor temperature measurement circuit module is connected on the circuit of the each diode in diode string, and for detecting the temperature of each diode, the output of described semiconductor temperature measurement circuit module connects MCU microprocessor; Described MCU microprocessor connects the main control system outside photovoltaic junction box by RFID.
Useful technique effect of the present invention is:
The present invention uses semiconductor temperature measurement circuit to detect the temperature of diode string, and the integrated MCU microprocessor with monitoring function, the characteristic relation that utilizes semiconductor element and temperature to have, in the time that semiconductor detects that diode temperature is too high, the abnormality monitoring is transferred to main control system by RFID, has realized the real-time monitoring of photovoltaic junction box temperature.
Advantage of the present invention will provide in the description of embodiment part below, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 1, photovoltaic junction box of the present invention, by comprising diode string 1, photovoltaic cable interface 2, semiconductor temperature measurement circuit module 3 and MCU microprocessor 4 in the cavity forming between upper cover and base.Diode string 1 comprises the diode of multiple series aiding connections, and the quantity of diode is identical with the quantity of photovoltaic cell 5, and with photovoltaic cell 5 one by one correspondence be connected in parallel.Two photovoltaic cable interfaces 2 are connected to respectively the two ends of diode string 1.Multiple semiconductor temperature measurement circuit modules 3 are connected on the circuit of the each diode in diode string 1, and for detecting the temperature of each diode, the output of semiconductor temperature measurement circuit module 3 connects MCU microprocessor 4.MCU microprocessor 4 connects the output of each semiconductor temperature measurement circuit module 3, and the output of MCU microprocessor connects the main control system 6 outside photovoltaic junction box by RFID.In the time that semiconductor temperature measurement circuit module 3 detects that this diode temperature is too high, the abnormal data of acquisition is transferred out to main control system 6 with RFID by MCU microprocessor 4, realize the temperature remote real-time monitoring of photovoltaic junction box.Semiconductor temperature measurement circuit module 3 of the present invention and MCU microprocessor 4, main control system 6 are commercial goods.
Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate without departing from the spirit and concept in the present invention, within all should thinking and being included in protection scope of the present invention.
Claims (1)
1. the remote monitoring type photovoltaic junction box of a based semiconductor thermometric and RFID transmission, comprise the upper cover and the base that mutually cover, between upper cover and base, form cavity, it is characterized in that: in described cavity, comprise diode string (1), photovoltaic cable interface (2), semiconductor temperature measurement circuit module (3) and MCU microprocessor (4); Described diode string (1) comprises the diode of multiple series aiding connections, and the quantity of diode is identical with the quantity of photovoltaic cell (5), and same photovoltaic cell (5) one by one correspondence be connected in parallel; Described photovoltaic cable interface (2) has two, is connected to respectively the two ends of diode string (1); Described semiconductor temperature measurement circuit module (3) respectively be connected on the circuit of the each diode in diode string (1), for detecting the temperature of each diode, the output of described semiconductor temperature measurement circuit module (3) connects MCU microprocessor (4); Described MCU microprocessor (4) connects the main control system (6) outside photovoltaic junction box by RFID.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133289.4A CN103888064A (en) | 2014-04-03 | 2014-04-03 | Remote monitor type photovoltaic connecting box based on semiconductor temperature measurement and RFID transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133289.4A CN103888064A (en) | 2014-04-03 | 2014-04-03 | Remote monitor type photovoltaic connecting box based on semiconductor temperature measurement and RFID transmission |
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| Publication Number | Publication Date |
|---|---|
| CN103888064A true CN103888064A (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410133289.4A Pending CN103888064A (en) | 2014-04-03 | 2014-04-03 | Remote monitor type photovoltaic connecting box based on semiconductor temperature measurement and RFID transmission |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202024830U (en) * | 2011-03-31 | 2011-11-02 | 李徐辉 | High-precision temperature sensor capable of measuring solar cell panel |
| CN102683446A (en) * | 2011-03-11 | 2012-09-19 | 上海上斯电子有限公司 | Diode module for protecting solar photovoltaic battery component |
| WO2013026539A1 (en) * | 2011-08-19 | 2013-02-28 | Phoenix Contact Gmbh & Co Kg | Socket for a solar panel with a protective circuit |
| CN203827277U (en) * | 2014-04-03 | 2014-09-10 | 苏州边枫电子科技有限公司 | Remote monitoring type photovoltaic junction box based on semiconductor temperature measurement and RFID transmission |
-
2014
- 2014-04-03 CN CN201410133289.4A patent/CN103888064A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683446A (en) * | 2011-03-11 | 2012-09-19 | 上海上斯电子有限公司 | Diode module for protecting solar photovoltaic battery component |
| CN202024830U (en) * | 2011-03-31 | 2011-11-02 | 李徐辉 | High-precision temperature sensor capable of measuring solar cell panel |
| WO2013026539A1 (en) * | 2011-08-19 | 2013-02-28 | Phoenix Contact Gmbh & Co Kg | Socket for a solar panel with a protective circuit |
| CN203827277U (en) * | 2014-04-03 | 2014-09-10 | 苏州边枫电子科技有限公司 | Remote monitoring type photovoltaic junction box based on semiconductor temperature measurement and RFID transmission |
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Application publication date: 20140625 |