CN219739983U - Intelligent photovoltaic protection switch - Google Patents
Intelligent photovoltaic protection switch Download PDFInfo
- Publication number
- CN219739983U CN219739983U CN202223569249.3U CN202223569249U CN219739983U CN 219739983 U CN219739983 U CN 219739983U CN 202223569249 U CN202223569249 U CN 202223569249U CN 219739983 U CN219739983 U CN 219739983U
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- circuit
- protection
- mppt
- photovoltaic
- diodes
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Links
- 230000001052 transient effect Effects 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052744 lithium Inorganic materials 0.000 abstract description 5
- 230000001960 triggered effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses an intelligent photovoltaic protection switch which comprises a magnetic control switch circuit, a TVS protection circuit, an MPPT interface circuit, an inductance interface circuit, an LED indicator lamp circuit and a tripper wiring terminal circuit, wherein the TVS protection circuit comprises a plurality of diodes, a relay and a resistor, the tripper wiring terminal circuit comprises a resistor, and the diodes are connected in parallel to form a loop. According to the utility model, the anode and cathode loops between the photovoltaic panel and the MPPT can be rapidly cut off by adopting the photovoltaic charging protection box when the MPPT charging protection function is invalid (input/output is straight-through) and the lithium battery is triggered to be overcharged, so that the lithium battery is protected from being damaged or causing safety accidents.
Description
Technical Field
The utility model relates to the field of photovoltaics, in particular to an intelligent photovoltaic protection switch.
Background
The solar photovoltaic and other power generation functions are used as green new energy, so that the resource is convenient to obtain, the safety and the pollution-free performance are the necessary trend of new energy development. In terms of protection of the photovoltaic, the prior art adopts a photovoltaic module to an MPPT control module (buck type) and then to an energy storage module, when the MPPT charging control module (buck type) is damaged, the voltage of the photovoltaic module is generally 20-70V when the input and the output are directly communicated, and the energy storage module can only accept 14.6V to charge at most, so that the energy storage module can be charged up and even fire to cause a safety accident.
Aiming at the problems, the utility model provides an intelligent photovoltaic protection switch capable of intelligently powering off a protection circuit.
Disclosure of Invention
The utility model provides an intelligent photovoltaic protection switch capable of intelligently powering off a protection circuit.
The utility model aims to provide an intelligent photovoltaic protection switch which comprises a magnetic control switch circuit, a TVS protection circuit, an MPPT interface circuit, an inductance interface circuit, an LED indicator lamp circuit and a tripper wiring terminal circuit, wherein the TVS protection circuit comprises a plurality of diodes, a relay and a resistor, the tripper wiring terminal circuit comprises a resistor, and the diodes are connected in parallel to form a loop.
Further, the diode comprises a plurality of transient diodes and a common diode.
Further, the MPPT crossing circuit, the magnetic control switch circuit, the inductance interface circuit, the LED indicator light circuit and the tripper wiring terminal circuit are all connected with the TVS protection circuit.
The utility model has the following advantages: according to the utility model, the anode and cathode loops between the photovoltaic panel and the MPPT can be rapidly cut off by adopting the photovoltaic charging protection box when the MPPT charging protection function is invalid (input/output is straight-through) and the lithium battery is triggered to be overcharged, so that the lithium battery is protected from being damaged or causing safety accidents. The utility model has lower conduction loss, and can exactly ensure that the photovoltaic can be automatically closed when overhauling and under the condition of not closing the photovoltaic for a long time.
Drawings
FIG. 1 is a schematic diagram of a TVS protection circuit according to the present utility model;
FIG. 2 is a circuit diagram of a magnetically controlled switch according to the present utility model;
FIG. 3 is a circuit diagram of a trip terminal of the present utility model;
fig. 4 is a circuit diagram of an MPPT interface of the present utility model;
FIG. 5 is a circuit diagram of an inductance interface according to the present utility model;
fig. 6 is a circuit diagram of an LED indicator of the present utility model.
Detailed Description
The utility model provides an intelligent photovoltaic protection switch which comprises a magnetic control switch circuit, a TVS protection circuit, an MPPT interface circuit, an inductance interface circuit, an LED indicator lamp circuit and a tripper wiring terminal circuit, wherein the TVS protection circuit comprises a plurality of diodes, a relay and a resistor, the tripper wiring terminal circuit comprises a resistor, and the diodes are connected in parallel to form a loop.
In this embodiment, the diode includes a plurality of transient diodes and a common diode.
In this embodiment, the MPPT intersection circuit, the magnetic switch circuit, the inductance interface circuit, the LED indicator light circuit, and the trip terminal circuit are all connected with the TVS protection circuit.
In this embodiment, the photovoltaic board is connected to the PV port of MPPT after the direct current circuit breaker, and MPPT battery port is connected with lithium cell and photovoltaic protection shield that charges, and when the photovoltaic protection shield detected that the voltage of MPPT battery port reached 18V, output control voltage signal made the release trip linkage circuit breaker switch-off, the positive negative pole return circuit of disconnection photovoltaic board and MPPT.
Although specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, it should not be construed as limiting the scope of protection of the present patent. Various modifications and variations which may be made by those skilled in the art without the creative effort are within the scope of the patent described in the claims.
Claims (3)
1. The utility model provides an intelligence photovoltaic protection switch, including magnetic control switch circuit, TVS protection circuit, MPPT interface circuit, inductance interface circuit, LED pilot lamp circuit and release binding post circuit, its characterized in that: the TVS protection circuit comprises a plurality of diodes, a relay and a resistor, wherein the connecting terminal circuit of the tripping device comprises the resistor, and the diodes are connected in parallel to form a loop.
2. An intelligent photovoltaic protection switch as claimed in claim 1, wherein: the diode comprises a plurality of transient diodes and a universal diode.
3. An intelligent photovoltaic protection switch as claimed in claim 1, wherein: the MPPT interface circuit, the magnetic control switch circuit, the inductance interface circuit, the LED indicator light circuit and the tripper wiring terminal circuit are all connected with the TVS protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223569249.3U CN219739983U (en) | 2022-12-30 | 2022-12-30 | Intelligent photovoltaic protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223569249.3U CN219739983U (en) | 2022-12-30 | 2022-12-30 | Intelligent photovoltaic protection switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219739983U true CN219739983U (en) | 2023-09-22 |
Family
ID=88058339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223569249.3U Active CN219739983U (en) | 2022-12-30 | 2022-12-30 | Intelligent photovoltaic protection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219739983U (en) |
-
2022
- 2022-12-30 CN CN202223569249.3U patent/CN219739983U/en active Active
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