Photovoltaic rapid turn-off device with temperature control

Abstract

The invention discloses a photovoltaic rapid turn-off device with temperature control, which relates to the technical field of photovoltaic power generation safety equipment and comprises a control chip, a power supply module, a temperature control module, a switch module, a clock source, a bypass module, a positive input end, a negative input end, a positive output end, a negative output end, a communication module and a remote control platform. According to the invention, the temperature of the switch module can be detected in real time, when the temperature is higher than the set temperature, the turn-off device is turned off, and when the temperature is reduced to the set temperature, the turn-off device is turned on, so that the situation that the switch module is overheated due to overlarge current when the switch module works normally is prevented; the switch module works at high temperature for a long time or is damaged due to over-temperature, so that the service life of the quick turn-off device is effectively prolonged; and self-combustion of the turn-off device caused by over-temperature damage of the switch module can be prevented, so that fire-fighting potential safety hazards of the turn-off device and a photovoltaic system are effectively reduced, and the safety of properties and personnel is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation safety equipment, in particular to a photovoltaic fast shutdown device with temperature control. Background Art

[0002] With the rapid development of the photovoltaic power generation industry, the scale of photovoltaic systems continues to expand, and their application scenarios are becoming increasingly diverse. In photovoltaic power generation systems, photovoltaic rapid shutdown devices, as key devices for ensuring safe system operation, are becoming increasingly important. In actual operation, photovoltaic systems operate in a complex and changing environment, and temperature is a significant factor affecting the performance and lifespan of photovoltaic equipment. Excessive temperatures not only reduce the power generation efficiency of photovoltaic modules but can also cause hot spot effects, accelerate equipment aging, and even lead to safety accidents.

[0003] In the existing technology, traditional photovoltaic fast shut-off devices lack an effective temperature control mechanism. Most traditional shut-off devices only have basic circuit cutting functions and cannot monitor temperature changes inside the equipment in real time, let alone actively adjust according to temperature conditions. When the ambient temperature rises or the equipment itself heats up severely, the internal components work in a high-temperature environment for a long time, which is prone to performance degradation, damage and other problems, greatly shortening the service life of the equipment. There is even the possibility of the shut-off device itself catching fire, affecting the safety and stability of the photovoltaic system, and needs to be improved. Summary of the Invention

[0004] The object of the present invention is to provide a photovoltaic fast shutdown device with temperature control to solve the problems raised by the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic fast shutdown device with temperature control, comprising a control chip, a power module, a temperature control module, a switch module, a clock source, a bypass module, a positive input terminal, a negative input terminal, a positive output terminal, a negative output terminal, a communication module, and a remote control platform, wherein the negative input terminal is the power ground of the shutdown system, and all grounds in the shutdown system are connected to the negative input terminal;

[0006] The temperature control module includes a comparator, an NMOS switch tube, a PMOS switch tube, N+1 resistors, a diode and a voltage regulator diode. The fourth end of the switch module is connected to the inverting input pin of the comparator, the first end of the first resistor is connected to the negative input power ground, the second end of the first resistor is connected to the non-inverting input pin of the comparator, the first end of the second resistor is connected to the second end of the power module, the second end of the second resistor is connected to the non-inverting input pin of the comparator, the first end of the third resistor is connected to the power ground, the second end of the third resistor is connected to the inverting input pin of the comparator, the anode of the diode is connected to the non-inverting input pin of the comparator, the cathode of the diode is connected to the first end of the fourth resistor, the second end of the fourth resistor is connected to the output pin of the comparator, and the output pin of the comparator is connected to the ground pin of the power supply module. The output end is connected to the first end of the fifth resistor, the second end of the fifth resistor is connected to the second end of the power module, the first end of the first capacitor is connected to the power ground, the second end of the first capacitor is connected to the output pin of the comparator, the output pin of the comparator is connected to the gate of the NMOS switch tube, the drain of the NMOS switch tube is connected to the first end of the sixth resistor, the second end of the sixth resistor is connected to the gate of the PMOS switch tube, the source of the PMOS switch tube is connected to the second end of the seventh resistor and the positive input end, the drain of the PMOS switch tube is connected to the first end of the control chip, the first end of the seventh resistor is connected to the second end of the sixth resistor and the gate of the PMOS switch tube, the first end of the voltage regulator diode is connected to the gate of the PMOS switch tube, and the second end of the voltage regulator diode is connected to the source of the PMOS switch tube.

[0007] Preferably, the first end of the photovoltaic component is connected to the positive input end, the positive input end is connected to the first end of the switch module, the second end of the switch module is connected to the positive output end, the second end of the photovoltaic component is connected to the negative input end, the third end of the switch module is connected to the second end of the control chip, the fourth end of the switch module is connected to the second end of the temperature control module, the positive input end is connected to the first end of the temperature control module, and the third end of the temperature control module is connected to the control chip.

[0008] Preferably, the positive input terminal is connected to the first terminal of the power supply module, the second terminal of the power supply module is connected to the fourth terminal of the temperature control module, the negative input terminal is connected to the second terminal of the bypass module, the clock source is connected to the third terminal of the control chip, the positive output terminal is connected to the first terminal of the bypass module, and the negative output terminal is connected to the second terminal of the bypass module.

[0009] Preferably, the power module supplies power to the temperature control module, the temperature control module detects the temperature of the switch module and controls the power on and off of the control chip, and the clock source provides a clock signal to the control chip;

[0010] The power module draws power from the positive input terminal and steps down the high voltage provided by the photovoltaic module to a low voltage to power the temperature control module.

[0011] The temperature control module controls the on / off of the positive input terminal to the first terminal of the control chip by detecting the temperature of the switch module. The first terminal of the control chip is its power input terminal.

[0012] Preferably, the switching module consists of N+1 NMOS switching tubes and an NTC temperature detection resistor, the positive input end is connected to the drain of the NMOS switching tube, the source of the NMOS switching tube is connected to the positive output end and the first end of the bypass module, the gate of the NMOS switching tube and the third end of the switching module are both connected to the second end of the control chip, the first end of the NTC temperature detection resistor is connected to the second end of the power module, and the second end of the NTC temperature detection resistor is connected to the second end of the temperature control module.

[0013] Preferably, the first end of the control chip is the power input end, and the second end of the control chip is the control signal output end. By connecting the second end of the control chip to the third end of the switch module, the control chip can control the opening and closing of the switch module.

[0014] Preferably, the bypass module is N+1 ideal diodes, the anode of the ideal diode is connected to the negative output end, and the cathode of the ideal diode is connected to the positive output end.

[0015] Preferably, the communication module is connected to the control chip, the communication module is signal-connected to the remote control platform, and the remote control platform establishes a connection with the control chip through the communication module.

[0016] Preferably, the communication module is responsible for receiving control signals between the control chip and the remote control platform.

[0017] Preferably, the remote control platform: sends alarm information and device status data to computer terminals and mobile phone terminals.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the present invention, the temperature of the switch module can be detected in real time through the temperature detection module inside the rapid disconnector body. When the temperature is higher than the set temperature, the disconnector will be turned off. When the temperature drops to the set temperature, the disconnector will be turned on, thereby preventing the switch module from overheating due to excessive current during normal operation, causing the switch module to work at high temperature for a long time or be damaged by overheating, effectively increasing the service life of the rapid disconnector; it can also prevent the disconnector from burning itself due to overheating damage to the switch module, effectively reducing the fire safety risks of the disconnector itself and the photovoltaic system, thereby ensuring the safety of property and personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a system structure diagram of a photovoltaic fast shutdown device with temperature control according to the present invention;

[0021] Figure 2 The figure is a schematic diagram of the interior of a temperature control module in a photovoltaic fast shutdown device with temperature control according to the present invention. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] Example 1: Reference Figure 1 - Figure 2 As shown: A photovoltaic fast shutdown device with temperature control, including a control chip, a power module, a temperature control module, a switch module, a clock source, a bypass module, a positive input terminal, a negative input terminal, a positive output terminal, a negative output terminal, a communication module and a remote control platform. The negative input terminal is the power ground of the shutdown system, and all grounds in the shutdown system are connected to the negative input terminal;

[0024] The temperature control module includes a comparator, an NMOS switch tube, a PMOS switch tube, N+1 resistors, a diode and a voltage regulator diode. The fourth end of the switch module is connected to the inverting input pin of the comparator, the first end of the first resistor is connected to the negative input power ground, the second end of the first resistor is connected to the non-inverting input pin of the comparator, the first end of the second resistor is connected to the second end of the power module, the second end of the second resistor is connected to the non-inverting input pin of the comparator, the first end of the third resistor is connected to the power ground, the second end of the third resistor is connected to the inverting input pin of the comparator, the anode of the diode is connected to the non-inverting input pin of the comparator, the cathode of the diode is connected to the first end of the fourth resistor, the second end of the fourth resistor is connected to the output pin of the comparator, and the output pin of the comparator is connected to the ground pin of the power supply module. The output end is connected to the first end of the fifth resistor, the second end of the fifth resistor is connected to the second end of the power module, the first end of the first capacitor is connected to the power ground, the second end of the first capacitor is connected to the output pin of the comparator, the output pin of the comparator is connected to the gate of the NMOS switch tube, the drain of the NMOS switch tube is connected to the first end of the sixth resistor, the second end of the sixth resistor is connected to the gate of the PMOS switch tube, the source of the PMOS switch tube is connected to the second end of the seventh resistor and the positive input end, the drain of the PMOS switch tube is connected to the first end of the control chip, the first end of the seventh resistor is connected to the second end of the sixth resistor and the gate of the PMOS switch tube, the first end of the Zener diode is connected to the gate of the PMOS switch tube, and the second end of the Zener diode is connected to the source of the PMOS switch tube;

[0025] By adjusting the resistance values of the first resistor and the second resistor according to the resistance values of the NTC temperature detection resistor and the third resistor, the temperature control module can be adjusted to open and close the power input of the control chip at a certain temperature, thereby controlling the operation and shutdown of the circuit breaker.

[0026] The first end of the photovoltaic module is connected to the positive input end, the positive input end is connected to the first end of the switch module, the second end of the switch module is connected to the positive output end, the second end of the photovoltaic module is connected to the negative input end, the third end of the switch module is connected to the second end of the control chip, the fourth end of the switch module is connected to the second end of the temperature control module, the positive input end is connected to the first end of the temperature control module, and the third end of the temperature control module is connected to the control chip; the positive input end is connected to the first end of the power module, the second end of the power module is connected to the fourth end of the temperature control module, the negative input end is connected to the second end of the bypass module, the clock source is connected to the third end of the control chip, the positive output end is connected to the first end of the bypass module, and the negative output end is connected to the second end of the bypass module; the power module supplies power to the temperature control module, the temperature control module detects the temperature of the switch module and controls the power on and off of the control chip, and the clock source provides a clock signal for the control chip;

[0027] The power module draws power from the positive input terminal and steps down the high voltage provided by the photovoltaic module to a low voltage to power the temperature control module.

[0028] The temperature control module controls the on / off of the positive input terminal to the first terminal of the control chip by detecting the temperature of the switch module. The first terminal of the control chip is its power input terminal.

[0029] The switch module comprises N+1 NMOS switch tubes and an NTC temperature detection resistor. The positive input terminal is connected to the drain of the NMOS switch tube, the source of the NMOS switch tube is connected to the positive output terminal and the first terminal of the bypass module, the gate of the NMOS switch tube and the third terminal of the switch module are both connected to the second terminal of the control chip, the first terminal of the NTC temperature detection resistor is connected to the second terminal of the power module, and the second terminal of the NTC temperature detection resistor is connected to the second terminal of the temperature control module. The first terminal of the control chip is the power input terminal, and the second terminal of the control chip is the control signal output terminal. By connecting the second terminal of the control chip to the third terminal of the switch module, the control chip can control the on and off of the switch module.

[0030] The control chip itself has the function of PLC communication, and controls the opening and closing of the switch module by parsing the information of PLC communication; the bypass module is N+1 ideal diodes, the anode of the ideal diode is connected to the negative output terminal, and the cathode of the ideal diode is connected to the positive output terminal.

[0031] In this embodiment, the photovoltaic module: as the power source of the entire system, it is connected to the rapid shutdown device through a line to provide it with power. In an actual photovoltaic power generation system, the photovoltaic module converts solar energy into electrical energy and is the core power generation unit of the system;

[0032] Rapid shutdown device: A key part of the entire system, consisting of multiple functional modules. It receives power input from the photovoltaic panels and, through the coordinated work of internal modules, controls and protects the circuit while communicating with external devices.

[0033] Power module: obtains high voltage from photovoltaic panels, steps it down to a low voltage suitable for the temperature control module, and supplies power to the temperature control module to ensure its normal operation;

[0034] Temperature control module: monitors the temperature of the switch module and controls the power supply of the control chip according to the temperature change. When the temperature of the switch module is too high, the power supply of the control chip is cut off, and the switch module is controlled to stop working, thereby protecting the equipment.

[0035] Switch module: It consists of multiple NMOS switch tubes and NTC temperature detection resistors. It realizes the conduction and shutdown of the circuit under the control of the control chip. At the same time, the NTC temperature detection resistor feeds back the temperature signal to the temperature control module.

[0036] Control chip: It is the control core of the fast shutdown device, receives the clock signal provided by the clock source, and controls the opening and closing of the switch module. At the same time, it has PLC communication function, receives the control signal of the remote control platform through the communication module, and opens the switch module when receiving the control signal, and automatically closes the switch module when no control signal is received;

[0037] Bypass module: When the circuit breaker is closed, it provides a bypass channel for the current, allowing the photovoltaic system to continue working and ensuring that some functions of the system are not affected;

[0038] Overcurrent detection circuit: monitors the current in the circuit in real time. Once it detects that the current exceeds the set threshold, it immediately sends a signal to the control chip. After receiving the signal, the control chip controls the switch module to cut off the circuit to protect the device from damage caused by excessive current.

[0039] Clock source: Provides a stable clock signal for the control chip to ensure that the control chip can work according to the established timing and ensure the synchronization and stability of the operation of the entire system;

[0040] The internal temperature detection module can detect the temperature of the switch module in real time. When the temperature is higher than the set temperature, the circuit breaker is turned off and when the temperature drops to the set temperature, it is turned on. This can effectively prevent the switch module from overheating due to excessive current, avoid it from working at high temperature for a long time or being damaged by overheating, thereby extending the service life of the fast circuit breaker. At the same time, it can also prevent the switch module from being damaged by overheating and causing the circuit breaker itself to burn, reducing the fire safety risks of the circuit breaker itself and the photovoltaic system, and ensuring the safety of property and personnel.

[0041] Example 2: Figure 1 As shown, the communication module is connected to the control chip, and the communication module is connected to the remote control platform signal. The remote control platform establishes a connection with the control chip through the communication module. The communication module is responsible for data transmission between the control chip and the remote control platform, uploading equipment operation data and fault information, and downloading remote control instructions. The remote control platform receives the data uploaded by the communication module, processes and analyzes it, and sends alarm information and equipment status data to the computer terminal and mobile phone terminal to facilitate remote monitoring and management by operators.

[0042] In this embodiment, the communication module: realizes data transmission between the control chip and the remote control platform, uploads information such as the temperature and current of the device to the remote control platform, and receives control instructions sent by the remote control platform;

[0043] Remote control platform: Receives data uploaded by the communication module, processes and analyzes the data, sends alarm information to computer terminals and mobile terminals when abnormal conditions occur in the equipment (such as overtemperature, overcurrent, etc.), and provides operators with real-time data display of the equipment's operating status, facilitating remote monitoring and management;

[0044] In the cooperation of remote temperature monitoring, communication module and remote control platform;

[0045] Real-time remote monitoring: Through the communication module and remote control platform, operators can remotely obtain real-time data on the operating status, temperature, current, and other data of the circuit breakers. In large-scale photovoltaic power plants, there are many circuit breakers and they are widely distributed. With this function, operation and maintenance personnel do not need to go to the site to check each circuit breaker one by one. They can keep track of the status of each circuit breaker at any time in the monitoring center, identify potential problems in a timely manner, and improve operation and maintenance efficiency.

[0046] Fault early warning and rapid response: The system monitors the operating parameters of the circuit breaker in real time. When an anomaly occurs, the communication module quickly uploads the fault information to the remote control platform, which immediately issues an alarm to notify maintenance personnel. For example, when a fault such as overtemperature or overcurrent occurs, maintenance personnel can obtain the information immediately and take measures, such as remotely controlling the circuit breaker to cut off the circuit, to prevent the fault from escalating, thereby reducing the risk of equipment damage and repair costs.

[0047] Optimizing system performance: Based on data collected by the remote control platform, operations and maintenance personnel can analyze the operating trends of the circuit breaker and the entire PV system and optimize the system. By analyzing temperature data and power output over different time periods, they can rationally adjust equipment layout or optimize heat dissipation measures to improve the power generation efficiency of PV panels and enhance the performance and stability of the entire system.

[0048] Centralized management and scheduling: Multiple distributed photovoltaic power stations can be centrally managed through a remote control platform. Managers can monitor the operation of circuit breakers in different power stations on the same platform and centrally dispatch resources. When a problem occurs in a power station, personnel and materials can be deployed in a timely manner to deal with it, thereby improving management efficiency and reducing operating costs.

[0049] Data recording and analysis: The remote control platform can store a large amount of historical operating data of the circuit breaker, providing a basis for subsequent analysis. By mining historical data, it can summarize the patterns of equipment failures, provide strong data support for equipment maintenance plan formulation, equipment selection and system upgrades, and help promote the continuous advancement and improvement of photovoltaic system technology.

[0050] The working principle of the present invention is as follows: First, the NTC temperature detection resistor in the temperature control module is closely connected to the switch module, sensing the temperature change of the switch module in real time. The temperature change will cause the resistance value of the NTC resistor to change. This resistance change is converted into a voltage signal and input into the comparator. The comparator compares this signal with the reference voltage set by multiple resistors. When the temperature is higher than the set threshold, the comparator output signal flips, triggering the subsequent circuit action, cutting off the power supply of the control chip, and then stopping the switch module to prevent it from being damaged by overheating;

[0051] Overcurrent detection circuits typically use current sensors connected in series to monitor the current in real time. Once the current exceeds a preset safety threshold, the current sensor generates a corresponding electrical signal and transmits it to the control chip. Upon receiving the overcurrent signal, the control chip quickly responds by controlling the switch module to cut off the circuit, preventing damage to the device caused by excessive current.

[0052] The power detection circuit collects the output power of the photovoltaic module in real time, measures the voltage and current, and calculates the real-time power value according to the power calculation formula. The data is transmitted to the control chip. The control chip calculates the appropriate switch module conduction time and current size based on the preset power regulation strategy and the current load demand, and sends a control signal to the switch module to achieve dynamic power matching and improve energy utilization efficiency.

[0053] The control chip, as the core controller, receives signals from the temperature control module, overcurrent detection circuit, and power detection circuit (if any). Based on these signals, the control chip sends control instructions to the switch module through its control signal output terminal. When the circuit needs to be cut off, the control chip turns off the NMOS switch tube in the switch module to disconnect the circuit. When the system is normal and the conduction conditions are met, the control chip turns on the NMOS switch tube to ensure normal power supply to the circuit.

[0054] The clock source provides a stable clock signal for the control chip. The control chip performs precise timing control based on the clock signal to ensure the coordinated work between various functional modules, orderly data processing and transmission, and maintain stable operation of the system.

[0055] The communication module is connected to the control chip and receives various data collected by the control chip, including temperature, current, power, switch status, and fault information. The communication module encapsulates this data according to a specific communication protocol and sends it wirelessly (such as 4G / 5G, Wi-Fi) or wired (such as Ethernet). The data is transmitted through the network and finally reaches the remote control platform;

[0056] Command reception and execution: The remote control platform analyzes and processes the received data. When the circuit breaker needs to be remotely controlled, the platform sends a control command to the communication module. After receiving the command, the communication module processes it and transmits it to the control chip. The control chip controls the switch module and other related components according to the command requirements to realize the remote control function.

[0057] The remote control platform receives and analyzes the data uploaded by the communication module and displays it to the operator in an intuitive interface. The operator can view the various operating parameters and working status of the circuit breaker in real time, analyze the data change trends through charts and reports, and fully understand the operation status of the photovoltaic power generation system.

[0058] The platform sets normal threshold ranges for various parameters. When the received data exceeds the threshold, the alarm mechanism is immediately triggered. The platform notifies the operation and maintenance personnel through SMS, email, pop-up windows, etc. The operation and maintenance personnel quickly determine the type and location of the fault based on the alarm information and the detailed data provided by the platform, formulate a maintenance plan, and handle the fault in a timely manner to ensure the safe and stable operation of the system.

[0059] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A photovoltaic fast shutdown device with temperature control, characterized by: It includes a control chip, a power module, a temperature control module, a switch module, a clock source, a bypass module, a positive input terminal, a negative input terminal, a positive output terminal, a negative output terminal, a communication module and a remote control platform. The negative input terminal is the power ground of the shutdown system, and all grounds in the shutdown system are connected to the negative input terminal. The temperature control module includes a comparator, an NMOS switch tube, a PMOS switch tube, N+1 resistors, a diode and a voltage regulator diode. The fourth end of the switch module is connected to the inverting input pin of the comparator, the first end of the first resistor is connected to the negative input power ground, the second end of the first resistor is connected to the non-inverting input pin of the comparator, the first end of the second resistor is connected to the second end of the power module, the second end of the second resistor is connected to the non-inverting input pin of the comparator, the first end of the third resistor is connected to the power ground, the second end of the third resistor is connected to the inverting input pin of the comparator, the anode of the diode is connected to the non-inverting input pin of the comparator, the cathode of the diode is connected to the first end of the fourth resistor, the second end of the fourth resistor is connected to the output pin of the comparator, and the output pin of the comparator is connected to the ground pin of the power supply module. The output end is connected to the first end of the fifth resistor, the second end of the fifth resistor is connected to the second end of the power module, the first end of the first capacitor is connected to the power ground, the second end of the first capacitor is connected to the output pin of the comparator, the output pin of the comparator is connected to the gate of the NMOS switch tube, the drain of the NMOS switch tube is connected to the first end of the sixth resistor, the second end of the sixth resistor is connected to the gate of the PMOS switch tube, the source of the PMOS switch tube is connected to the second end of the seventh resistor and the positive input end, the drain of the PMOS switch tube is connected to the first end of the control chip, the first end of the seventh resistor is connected to the second end of the sixth resistor and the gate of the PMOS switch tube, the first end of the voltage regulator diode is connected to the gate of the PMOS switch tube, and the second end of the voltage regulator diode is connected to the source of the PMOS switch tube.

2. A photovoltaic rapid shutdown device with temperature control according to claim 1, characterized in that: The first end of the photovoltaic module is connected to the positive input end, the positive input end is connected to the first end of the switch module, the second end of the switch module is connected to the positive output end, the second end of the photovoltaic module is connected to the negative input end, the third end of the switch module is connected to the second end of the control chip, the fourth end of the switch module is connected to the second end of the temperature control module, the positive input end is connected to the first end of the temperature control module, and the third end of the temperature control module is connected to the control chip.

3. A photovoltaic rapid shutdown device with temperature control according to claim 2, characterized in that: The positive input terminal is connected to the first terminal of the power module, the second terminal of the power module is connected to the fourth terminal of the temperature control module, the negative input terminal is connected to the second terminal of the bypass module, the clock source is connected to the third terminal of the control chip, the positive output terminal is connected to the first terminal of the bypass module, and the negative output terminal is connected to the second terminal of the bypass module.

4. The photovoltaic rapid shutdown device with temperature control according to claim 1, characterized in that: The power module supplies power to the temperature control module, which detects the temperature of the switch module and controls the power on and off of the control chip. The clock source provides a clock signal to the control chip. The power module draws power from the positive input terminal and steps down the high voltage provided by the photovoltaic module to a low voltage to power the temperature control module. The temperature control module controls the on / off of the positive input terminal to the first terminal of the control chip by detecting the temperature of the switch module. The first terminal of the control chip is its power input terminal.

5. The photovoltaic rapid shutdown device with temperature control according to claim 1, characterized in that: The switch module consists of N+1 NMOS switch tubes and an NTC temperature detection resistor. The positive input end is connected to the drain of the NMOS switch tube, the source of the NMOS switch tube is connected to the positive output end and the first end of the bypass module, the gate of the NMOS switch tube and the third end of the switch module are both connected to the second end of the control chip, the first end of the NTC temperature detection resistor is connected to the second end of the power module, and the second end of the NTC temperature detection resistor is connected to the second end of the temperature control module.

6. The photovoltaic rapid shutdown device with temperature control according to claim 5, characterized in that: The first end of the control chip is the power input end, and the second end of the control chip is the control signal output end. By connecting the second end of the control chip to the third end of the switch module, the control chip can control the opening and closing of the switch module.

7. The photovoltaic rapid shutdown device with temperature control according to claim 6, characterized in that: The bypass module is N+1 ideal diodes, the anodes of the ideal diodes are connected to the negative output terminal, and the cathodes of the ideal diodes are connected to the positive output terminal.

8. The photovoltaic rapid shutdown device with temperature control according to claim 1, characterized in that: The communication module is connected to the control chip, the communication module is connected to the remote control platform signal, and the remote control platform establishes a connection with the control chip through the communication module.

9. The photovoltaic rapid shutdown device with temperature control according to claim 8, characterized in that: Communication module: responsible for receiving control signals between the control chip and the remote control platform.

10. The photovoltaic rapid shutdown device with temperature control according to claim 8, characterized in that: Remote control platform: Send alarm information and equipment status data to computer terminals and mobile terminals.

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