CN203827276U - Remote monitoring type photovoltaic junction box based on semiconductor temperature measurement and one-way communication protocol - Google Patents
Remote monitoring type photovoltaic junction box based on semiconductor temperature measurement and one-way communication protocol Download PDFInfo
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- CN203827276U CN203827276U CN201420160849.0U CN201420160849U CN203827276U CN 203827276 U CN203827276 U CN 203827276U CN 201420160849 U CN201420160849 U CN 201420160849U CN 203827276 U CN203827276 U CN 203827276U
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- diode
- junction box
- temperature measurement
- photovoltaic
- photovoltaic junction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a remote monitoring type photovoltaic junction box based on semiconductor temperature measurement and a one-way communication protocol. The remote monitoring type photovoltaic junction box comprises a diode string, two photovoltaic cable interfaces, a semiconductor temperature measurement circuit module and an MCU microprocessor. The diode string comprises a plurality of diodes which are connected in series in the same direction, the number of the diodes is same with that of photovoltaic cells, and the diodes are in corresponding parallel connection with the photovoltaic cells. The two photovoltaic cable interfaces are respectively connected to the two ends of the diode string. The semiconductor temperature measurement circuit module is respectively connected to the line of each diode in the diode string, and the output end of the semiconductor temperature measurement circuit module is connected with the MCU microprocessor. The MCU microprocessor is connected with a control host machine outside the photovoltaic junction box through the one-way communication protocol. According to the remote monitoring type photovoltaic junction box, when a semiconductor defects that the diode temperature is too high, the monitored abnormal state is transmitted to the control host machine through the one-way communication protocol, and the real-time monitoring of the temperature of the photovoltaic junction box is realized.
Description
Technical field
The utility model relates to field of photovoltaic power generation, relates 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 single-wire communication agreement.
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, with the conducting strip of diode, is arranged in installation cavity.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 when working, can cause a large amount of hot stacks, produce higher temperature, continuous rising along with diode temperature, resistance in diode will constantly increase, cause diode to produce more heat, thereby waste more electric power resource, enter vicious circle.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.
Utility model content
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 single-wire communication agreement, realizes the real-time monitoring of photovoltaic junction box temperature.
The technical solution of the utility model is as follows:
The remote monitoring type photovoltaic junction box of a kind of based semiconductor thermometric and single-wire communication agreement, 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 a plurality of 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 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 single-wire communication agreement.
Useful technique effect of the present utility model is:
The utility model is used 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, at semiconductor, diode temperature detected when too high, the abnormality monitoring is arrived to main control system by single-wire communication protocol transmission, realized the real-time monitoring of photovoltaic junction box temperature.
Advantage of the present utility model will provide in embodiment description partly below, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As shown in Figure 1, photovoltaic junction box of the present utility model, 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 a plurality of 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.A plurality of semiconductor temperature measurement circuit modules 3 are connected on the circuit of 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 single-wire communication agreement.In semiconductor temperature measurement circuit module 3, this diode temperature detected when too high, the abnormal data of acquisition is gone out to main control system 6 with single-wire communication protocol transmission by MCU microprocessor 4, realize the temperature remote real-time monitoring of photovoltaic junction box.Semiconductor temperature measurement circuit module 3 described in the utility model and MCU microprocessor 4, main control system 6 are commercial goods.Described single-wire communication agreement is prior art.
Above-described is only preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate under the prerequisite that does not depart from spirit of the present utility model and design, within all should thinking and being included in protection range of the present utility model.
Claims (1)
1. the remote monitoring type photovoltaic junction box of a based semiconductor thermometric and single-wire communication agreement, 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 a plurality of 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) is connected on the circuit of 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 single-wire communication agreement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160849.0U CN203827276U (en) | 2014-04-03 | 2014-04-03 | Remote monitoring type photovoltaic junction box based on semiconductor temperature measurement and one-way communication protocol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160849.0U CN203827276U (en) | 2014-04-03 | 2014-04-03 | Remote monitoring type photovoltaic junction box based on semiconductor temperature measurement and one-way communication protocol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203827276U true CN203827276U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420160849.0U Expired - Fee Related CN203827276U (en) | 2014-04-03 | 2014-04-03 | Remote monitoring type photovoltaic junction box based on semiconductor temperature measurement and one-way communication protocol |
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| CN (1) | CN203827276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888063A (en) * | 2014-04-03 | 2014-06-25 | 苏州边枫电子科技有限公司 | Remote monitor type photovoltaic connecting box based on semiconductor temperature measurement and single-wire communication protocol |
-
2014
- 2014-04-03 CN CN201420160849.0U patent/CN203827276U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888063A (en) * | 2014-04-03 | 2014-06-25 | 苏州边枫电子科技有限公司 | Remote monitor type photovoltaic connecting box based on semiconductor temperature measurement and single-wire communication protocol |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20150403 |
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| EXPY | Termination of patent right or utility model |