Direct current converter with intelligent power-off function

Abstract

The invention relates to the technical field of new energy automobile charging, and discloses a direct current converter with an intelligent power-off function, which comprises a shell, and is characterized in that the direct current converter is mounted in the shell, and the direct current converter comprises an input module, a conversion module, a locking control module, an output module and a monitoring and feedback module; the input module is used for receiving an external direct-current power supply, the conversion module is used for converting voltage and current parameters of the input direct-current power supply according to requirements, the locking control module is used for controlling locking and unlocking of the connection state of the direct-current converter, and the output module is used for transmitting the converted direct-current power supply to external equipment. The monitoring and feedback module is used for monitoring the working state of each module of the DC converter in real time. The intelligent and self-adaptive locking function is realized through the locking control module, stable connection between the plug and the socket is ensured, the power transmission reliability is greatly improved, and the problem that the locking function lacks intelligent sensing and self-adaptive adjustment is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle charging, in particular to a direct current converter with an intelligent power-off function. Background Art

[0002] With the development of the new energy electric vehicle market, the popularization of charging facilities has become the key. However, in daily charging, car owners encounter the problem of unstable charging connector connection. On the one hand, due to the complex and changeable environment of the charging site, such as wind, ground vibration caused by passing vehicles, and even inadvertent collisions by passers-by, etc., external interference factors; on the other hand, during the charging process of the electric vehicle, the on-off change of the current will cause a certain degree of internal mechanical vibration. The combined effect of these factors makes the existing charging connectors very easy to loosen and fall off.

[0003] The existing ones mostly use simple mechanical structures to achieve locking. The locking force is single and fixed, and it is difficult to adapt to external force impacts of different intensities. The locking may fail when encountering a slightly larger vibration or collision. In addition, they lack intelligent perception and adaptive adjustment capabilities, and cannot monitor changes in the connection status of the connector in real time. Even if the connector has begun to loosen, it cannot be detected and re-locked in time. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a DC converter with an intelligent power-off function, which solves the problem that the locking function lacks intelligent perception and adaptive adjustment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a DC converter with an intelligent power-off function, comprising a shell, a DC converter is installed inside the shell, the DC converter comprises an input module, a conversion module, a locking control module, an output module, and a monitoring and feedback module, the input module is used to receive an external DC power supply and provide a DC input for the module, the conversion module is used to convert the voltage and current parameters of the input DC power supply according to requirements, the locking control module is used to control the locking and unlocking of the connection status of the DC converter to ensure a stable connection, the output module is used to deliver the converted DC power supply to an external device, the monitoring and feedback module is used to monitor the working status of each module of the DC converter in real time, and feed back these data to the control unit, the DC converter is used to receive electrical signals sent by the input module, the conversion module, the locking control module, the output module, the monitoring and feedback module, and monitor and feedback the working status.

[0006] Preferably, an interface is provided on one side of the shell, terminal 1 is provided inside the interface, a card block is provided at the bottom end of the interface, a plug is provided at the other end of the shell, terminal 2 is provided inside the plug, and a push rod is provided at the top of the shell.

[0007] Preferably, the input module includes a power input interface and a filter circuit, wherein the power input interface is used to connect an external DC power supply and introduce the power into a DC converter, and the filter circuit is used to input voltage fluctuations of the DC power supply and suppress interference noise.

[0008] Preferably, the conversion module includes a power circuit power supply and a control circuit unit. The power circuit power supply is used to transform the voltage and current parameters of the input DC power supply and output a DC power supply that meets the requirements. The control circuit unit is used to control the DC conversion process and drive the power switch.

[0009] Preferably, the locking control module includes a control chip, a sensor system, and an executive component. The control chip is used to receive and process signals and generate control signals to drive the locking mechanism. The sensor system is used to measure the current flowing through the DC converter, the input and output voltages, the proximity status of the plug and the socket, and provide data to the control chip to determine whether to trigger the locking action. The executive component is used to receive signals from the control chip and realize locking or unlocking by turning the control circuit on and off.

[0010] Preferably, the output module includes a power output interface, a circuit protection unit, and an output indicator light. The power output interface is used to connect the converted and processed DC power to an external device and provide power. The circuit protection unit is used to monitor the output circuit status and control the circuit on and off. The output indicator light is used to display the working status of the output module.

[0011] Preferably, the monitoring and feedback module includes a sensor unit, a data acquisition unit, and a communication unit. The sensor unit is used to collect various physical quantity information related to the DC converter and provide data basis for control and monitoring. The data acquisition unit is used to collect analog signals transmitted by the sensor unit and convert them into digital signals. The communication unit is used to transmit the collected data to other devices and systems, and perform data sharing and remote monitoring.

[0012] A DC converter with intelligent power-off function and an operating method, comprising the following steps: S1. Connect the external DC power supply to the power input interface in the interface on one side of the shell. After the power supply is processed by the filter circuit, the voltage fluctuation is smoothed and the interference clutter is suppressed, providing a relatively stable DC input for the subsequent modules; S2, the power circuit power supply in the conversion module transforms the input DC power supply parameters such as voltage and current according to the requirements, and outputs a DC power supply that meets the requirements. In this process, the control circuit unit controls the DC conversion process and drives the power switch; S3. The sensor unit of the monitoring and feedback module collects various physical quantity information of the DC converter, such as current, voltage, etc. The data acquisition unit collects the analog signal from the sensor and converts it into a digital signal. The communication unit can transmit the data to other devices or systems to realize data sharing and remote monitoring. At the same time, the sensor system of the locking control module monitors the current flowing through the DC converter, the input and output voltages, the proximity between the plug and the socket, etc., and provides data for the control chip. S4. The control chip receives and processes the data from the sensor system, generates a control signal to drive the locking mechanism, and the actuator receives the control chip signal to lock or unlock the connection between the plug and the socket by controlling the on / off of the circuit to ensure a stable connection. S5. The converted DC power supply is connected to the external device through the power output interface to supply power to it. The circuit protection unit monitors the output circuit status in real time. In case of abnormal conditions such as overload and short circuit, the circuit is controlled to be on and off for protection. The output indicator light intuitively displays the working status of the output module.

[0013] Working principle: Connect to the external DC power supply through the power input interface, introduce electric energy, and the filter circuit will immediately play a role, relying on the characteristics of capacitance and inductance to suppress voltage fluctuations and interference clutter, and provide stable DC input for subsequent modules. In the conversion module, the power circuit power supply converts the voltage and current parameters of the input DC by driving the power switch under the precise control of the control circuit unit according to the preset requirements, and outputs the power supply adapted to the external device. The locking control module is crucial. The sensor system monitors the current, voltage and the proximity of the plug and socket in real time, and transmits the data to the control chip. After processing, the chip sends a signal to the execution component once it determines that the connection is unstable. The execution component locks or unlocks the plug and socket through the circuit on and off to ensure a stable connection. In the output module, the power output interface transmits the converted electric energy to the external device, and the circuit protection unit monitors the output circuit in real time. In case of abnormalities such as overload and short circuit, the circuit is immediately cut off to ensure safe power off, and the output indicator light intuitively presents the working status. The sensor unit of the monitoring and feedback module collects various physical quantities, the data acquisition unit converts analog signals into digital signals, and the communication unit realizes data sharing and remote monitoring, which guarantees the reliable operation of the converter in all aspects.

[0014] The present invention provides a DC converter with intelligent power-off function. It has the following beneficial effects: 1. The present invention realizes an intelligent and adaptive locking function through a locking control module, ensuring that the plug and the socket are tightly and firmly connected, effectively avoiding safety hazards such as power transmission interruption caused by looseness, heating caused by poor contact, and even fire, greatly improving the reliability of power transmission. The problem of the lack of intelligent perception and adaptive adjustment of the locking function is solved.

[0015] 2. The present invention uses a card block to enable the interface to be quickly aligned when connected and to resist a certain degree of external force interference such as vibration and shaking during subsequent use, thereby maintaining the stability of the connection, reducing the risk of failure caused by loose connection, and solving the problems of unstable connection and inconvenient plugging and unplugging when the DC converter is connected to external devices.

[0016] 3. The present invention ensures the convenience and stability of connection with the external DC power supply through the power input interface, reduces the contact resistance, reduces the power loss and heating problems caused by poor connection, and ensures the continuous and stable introduction of electricity. It solves the problems of unstable external DC power supply access and poor input power quality.

[0017] 4. The present invention can transform the voltage and current parameters of the input DC power supply according to the requirements of different devices through the conversion module, and output an adaptive DC power supply to meet the diversified power demand. It solves the problems of unstable external DC power supply access, poor input power quality, and inflexible and inaccurate DC conversion.

[0018] 5. The present invention ensures stable power transmission through the power output interface; the circuit protection unit monitors and responds to abnormalities in real time, improves power safety, and reduces maintenance costs; the output indicator light 21 provides visual prompts for easy operation and troubleshooting. The problem of unstable DC power output and untimely safe power off is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front perspective schematic diagram of the present invention; Figure 2 It is a partial three-dimensional schematic diagram of the housing of the present invention; Figure 3 A system module architecture diagram of a DC converter of the present invention; Figure 4 A system module architecture diagram of an input module of the present invention; Figure 5 A system module architecture diagram of the conversion module of the present invention; Figure 6 A system module architecture diagram of a locking control module of the present invention; Figure 7 A system module architecture diagram of the output module of the present invention; Figure 8 This is a system module architecture diagram of the monitoring and feedback module of the present invention.

[0020] Among them, 1. Shell; 2. Card block; 3. Terminal 1; 4. Terminal 2; 5. Push rod; 6. DC converter; 7. Input module; 8. Conversion module; 9. Locking control module; 10. Output module; 11. Monitoring and feedback module; 12. Power input interface; 13. Filter circuit; 14. Power circuit power supply; 15. Control circuit unit; 16. Control chip; 17. Sensor system; 18. Actuator; 19. Power output interface; 20. Circuit protection unit; 21. Output indicator light; 22. Sensor unit; 23. Data acquisition unit; 24. Communication unit. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example:

[0022] Please refer to the attached Figure 1 -Attached Figure 8 The embodiment of the present invention provides a DC converter with an intelligent power-off function, including a housing 1, a DC converter 6 is installed inside the housing 1, and the DC converter 6 includes an input module 7, a conversion module 8, a locking control module 9, an output module 10, and a monitoring and feedback module 11. The input module 7 is used to receive an external DC power supply and provide a DC input for the module. The conversion module 8 is used to convert the voltage and current parameters of the input DC power supply according to requirements. The locking control module 9 is used to control the locking and unlocking of the connection state of the DC converter 6 to ensure a stable connection. The output module 10 is used to transmit the converted DC power supply to an external device. The monitoring and feedback module 11 is used to monitor the working state of each module of the DC converter 6 in real time and feed back these data to the control unit. The DC converter 6 is used to receive electrical signals sent by the input module 7, the conversion module 8, the locking control module 9, the output module 10, and the monitoring and feedback module 11, and monitor and feedback the working state.

[0023] Specifically, the modules of the DC converter 6 inside the housing 1 work together. The power input interface 12 in the input module 7 receives the external DC power supply, and the filter circuit 13 processes the input power supply to remove voltage fluctuations and interference clutter, and provide a stable DC input for subsequent modules; the power circuit power supply 14 in the conversion module 8 drives the power switch according to the demand using the control circuit unit 15 to convert the voltage and current parameters of the input DC power supply to obtain a DC power supply that meets the requirements; the locking control module 9 uses the sensor system 17 to monitor the current flowing through the DC converter 6, the input and output voltages, and the proximity status of the plug and the socket in real time, and transmits the data to the control chip 16, and the control chip 16 controls the current according to the preset The logic generates a control signal to drive the execution component 18 to lock and unlock the connection status by controlling the on / off of the circuit to ensure a stable connection; the power output interface 19 of the output module 10 transmits the converted DC power to the external device, the circuit protection unit 20 monitors the output circuit status, controls the on / off of the circuit when an abnormality occurs, and the output indicator light 21 displays the working status; the monitoring and feedback module 11 collects physical quantity information related to the DC converter 6 by the sensor unit 22, the data acquisition unit 23 collects the analog signal from the sensor unit 22 and converts it into a digital signal, and the communication unit 24 transmits the collected data to other devices and systems.

[0024] It realizes stable and efficient DC power conversion, meeting the needs of different external devices for DC power; ensures the stability of the connection between the DC converter 6 and the external device, and effectively resists the loose connection caused by vibration, impact and other factors; can monitor the working status of each module of the DC converter 6 in real time and comprehensively, and timely discover potential faults and hidden dangers. Through data sharing and remote monitoring, it is convenient for operation and maintenance personnel to carry out maintenance in advance and reduce equipment downtime; the protection function of the output module 10 reduces the risk of external equipment being damaged due to circuit abnormalities, and the output indicator light 21 intuitively presents the working status, which is convenient for operators to quickly judge. It solves the problem of unstable connection of the traditional DC converter 6 in a complex working environment, and avoids power transmission interruption due to loose connection.

[0025] Please refer to the attached Figure 1 -Attached Figure 2 An interface is provided on one side of the shell 1, a terminal 1 3 is provided in the interface, a card block 2 is provided at the bottom of the interface, a plug is provided at the other end of the shell 1, a terminal 2 4 is provided inside the plug, and a push rod 5 is provided at the top of the shell 1.

[0026] Specifically, the interface on one side of the housing 1 serves as the entrance for inputting electric energy. The terminal 1 3 in the interface is made of metal with good conductivity. It is in close contact with the corresponding interface of the external DC power supply to achieve electrical connection and introduce the external power supply into the converter. The card block 2 at the bottom of the interface, based on the mechanical structure design principle, when connected to the external docking component, the raised part of the card block 2 will be stuck in the card slot of the docking component, and the friction and the card position will be used to limit the displacement of the interface in the horizontal direction, ensuring that the initial positioning of the connection is accurate and stable.

[0027] The reliability of power input and output is ensured by terminal 1 3 and terminal 2 4, power loss or transmission interruption caused by poor contact is avoided, and power transmission efficiency is improved. The card block 2 enables the interface to be quickly aligned during connection and resists a certain degree of external interference such as vibration and shaking during subsequent use, maintains the stability of the connection, reduces the risk of failure caused by loose connection, and solves the problem of unstable connection and inconvenient plugging and unplugging when the DC converter 6 is connected to the external device.

[0028] Please refer to the attached Figure 3 -Attached Figure 4 The input module 7 includes a power input interface 12 and a filter circuit 13. The power input interface 12 is used to connect an external DC power supply and introduce the power supply into the DC converter 6. The filter circuit 13 is used to input voltage fluctuations of the DC power supply and suppress interference noise.

[0029] Specifically, the power input interface 12 adopts a standard interface adapted to the specifications of the DC power supply, and its internal contact is made of a metal material with excellent conductivity. It is connected to the output terminal of the external DC power supply through physical contact to form a low-resistance path, thereby smoothly introducing the external DC power supply into the DC converter 6. The filter circuit 13 is constructed based on the characteristics of capacitors and inductors. Capacitors can store and release charges, and have low impedance characteristics for high-frequency interference clutter, bypassing them to the ground to prevent clutter from entering the subsequent circuit; inductors, based on the principle of electromagnetic induction, have an obstructive effect on the changing current, and suppress low-frequency voltage fluctuations caused by changes in the power load through their own inductive reactance. The two cooperate with each other to make the current tend to be stable.

[0030] A stable and reliable DC power supply access is achieved. The power input interface 12 ensures the convenience and stability of the connection with the external DC power supply, reduces the contact resistance, reduces the power loss and heating problems caused by poor connection, and ensures the continuous and stable introduction of power. The problem of unstable external DC power supply access and poor input power quality is solved.

[0031] Please refer to the attached Figure 3 , Attachment Figure 5The conversion module 8 includes a power circuit power supply 14 and a control circuit unit 15. The power circuit power supply 14 is used to transform the voltage and current parameters of the input DC power supply and output a DC power supply that meets the requirements. The control circuit unit 15 is used to control the DC conversion process and drive the power switch.

[0032] Specifically, the conversion module 8 operates on this basis, and the power circuit power supply 14 adopts a circuit topology structure such as a Boost converter. When the input DC power supply is connected, the control circuit unit 15 drives the power switch tube to be turned on and off. During the on-time of the switch tube, the input power charges the inductor to store energy; when the switch tube is turned off, the inductor releases energy, and after diode rectification and capacitor filtering, the output voltage is reduced to achieve voltage conversion. The control circuit unit 15 monitors the output voltage and current in real time according to the preset voltage and current parameter requirements through the feedback control algorithm, compares them with the target value, dynamically adjusts the on-duty cycle of the power switch tube, accurately controls the DC conversion process, drives the power switch, and ensures that the output DC power supply meets the requirements.

[0033] The conversion module 8 can transform the voltage and current parameters of the input DC power supply according to the requirements of different devices, and output an adaptive DC power supply to meet the diversified power demand. Whether it is powering precision electronic equipment or dealing with high-power loads, it can ensure stable power supply and improve equipment operation efficiency. It solves the problems of unstable external DC power supply access, poor input power quality, and inflexible and inaccurate DC conversion.

[0034] Please refer to the attached Figure 3 , Attachment Figure 6 The locking control module 9 includes a control chip 16, a sensor system 17, and an executive component 18. The control chip 16 is used to receive and process signals and generate control signals to drive the locking mechanism. The sensor system 17 is used to measure the current flowing through the DC converter 6, the input and output voltages, and the proximity status of the plug and the socket, and provide data for the control chip 16 to determine whether to trigger the locking action. The executive component 18 is used to receive signals from the control chip 16 and realize locking or unlocking by turning the control circuit on and off.

[0035] Specifically, the sensor system 17 uses a variety of sensing technologies. The current transformer measures the current flowing through the DC converter 6 in real time, monitors the input and output voltages through the voltage divider sampling circuit, and uses the electromagnetic induction principle to continuously capture the proximity status of the plug and the socket. These real-time monitoring data will be transmitted to the control chip 16 in the form of electrical signals. The control chip 16 has a built-in microprocessor and runs complex intelligent algorithm logic. On the one hand, it performs real-time analysis on the received sensor data, compares the current and voltage values ​​with the preset normal working range thresholds, and once it exceeds the allowable fluctuation range, it preliminarily determines that the system may be abnormal; on the other hand, for the proximity data between the plug and the socket, multi-level warning thresholds are set according to different displacements, such as displacements between 0.1 mm and 0.5 mm are marked as slight looseness risks, 0.5 mm to 1 mm are moderate risks, and more than 1 mm are severe risks. When the comprehensive judgment system is in an unstable state, the control chip 16 quickly generates corresponding control signals based on preset strategies. The execution component 18 is mainly composed of electromagnetic relays, mechanical drive devices, etc. After receiving the control signal of the control chip 16, if it is a locking signal, the electromagnetic relay is quickly energized to generate a strong magnetic field to drive the mechanical drive device to move, push the card block 2 into the corresponding card slot, tighten the fastening device of the connecting cable, and enhance the mechanical stability of the connection between the plug and the socket; if it is an unlocking signal, the electromagnetic relay is de-energized, and the mechanical drive device moves in the opposite direction under the action of reset elements such as springs to achieve unlocking, making it convenient for plugging and unplugging the plug.

[0036] The intelligent and adaptive locking function is realized to ensure that the plug and the socket are tightly and firmly connected, effectively avoiding safety hazards such as power transmission interruption caused by looseness, heating caused by poor contact, and even fire, greatly improving the reliability of power transmission. The locking structure of the traditional DC converter 6 is simple and rigid, mostly using fixed locks, clips, etc., which cannot sense the change of connection status in real time, and cannot dynamically adjust the locking force and method according to current, voltage fluctuations and external force impacts, solving the problem of the lack of intelligent perception and adaptive adjustment of the locking function.

[0037] Please refer to the attached Figure 3 , Attachment Figure 7 The output module 10 includes a power output interface 19, a circuit protection unit 20, and an output indicator light 21. The power output interface 19 is used to connect the converted and processed DC power to an external device and provide power. The circuit protection unit 20 is used to monitor the output circuit status and control the circuit on and off. The output indicator light 21 is used to display the working status of the output module 10.

[0038] Specifically, the power output interface 19 is designed according to the electrical connection standard, and the internal conductive terminals are made of highly conductive and corrosion-resistant metals, which are in close contact with external devices to transmit DC power. The circuit protection unit 20 senses the current by a series current sensor, and closely monitors the output voltage by a voltage divider sampling circuit. Once it is detected that the current exceeds the preset overload current threshold, or the voltage deviates from the normal operating range, indicating that the output circuit is abnormal, the circuit protection unit 20 will respond quickly. It will immediately control the action of the actuator such as the relay switch, disconnect the circuit in time, block the excessive current, and effectively prevent dangerous conditions such as overheating and burning of the equipment caused by overload, ensure the safety of electricity use, and prevent equipment damage. The output indicator light 21 is linked with the power output interface 19 and the circuit protection unit 20. The green light is on for normal power supply, and the red light flashes for circuit abnormality to warn.

[0039] The power output interface 19 ensures stable power transmission; the circuit protection unit 20 monitors and responds to abnormalities in real time, improves power safety, and reduces maintenance costs; the output indicator light 21 provides visual prompts for easy operation and troubleshooting. This solves the problem of unstable DC power output and untimely power off.

[0040] Please refer to the attached Figure 3 , Attachment Figure 8 The monitoring and feedback module 11 includes a sensor unit 22, a data acquisition unit 23, and a communication unit 24. The sensor unit 22 is used to collect various physical quantity information related to the DC converter 6, and provide data basis for control and monitoring. The data acquisition unit 23 is used to collect analog signals transmitted by the sensor unit 22 and convert them into digital signals. The communication unit 24 is used to transmit the collected data to other devices and systems, and perform data sharing and remote monitoring.

[0041] Specifically, the sensor unit 22 uses a variety of sensing technologies, such as thermistors to sense the temperature of each module, current transformers to monitor the current size, voltage sensors to measure voltage values, displacement sensors to detect subtle displacement changes in the connection between the plug and the socket, etc., to collect various physical quantity information from different parts and different operating dimensions of the DC converter 6. This information reflects the working status of each module of the converter in real time. The data acquisition unit 23 is connected to the sensor unit 22 through a built-in high-precision analog-to-digital converter. When the sensor transmits an analog signal, the analog-to-digital converter samples the analog signal at a set frequency based on the sampling theorem, and converts the continuously changing analog quantity into a discrete digital quantity for subsequent processing and transmission, ensuring that the data is not distorted and accurate. The communication unit 24 uses wireless communication methods such as Bluetooth and Wi-Fi to package and encapsulate the digital signal converted by the data acquisition unit 23 according to the established communication protocol, and then transmits it to other devices and systems of the new energy electric vehicle, such as the vehicle's central control unit, remote operation and maintenance platform, etc., to realize data sharing and remote monitoring functions.

[0042] Please refer to the attached Figure 1 -Attached Figure 8 , a DC converter with intelligent power-off function and an operating method, comprising the following steps: S1, connect the external DC power supply to the power input interface 12 in the interface on one side of the housing 1, and the power supply is processed by the filter circuit 13 to smooth the voltage fluctuation and suppress interference and clutter, so as to provide a relatively stable DC input for subsequent modules; S2, the power circuit power supply 14 in the conversion module 8 transforms the input DC power supply parameters such as voltage and current according to the requirements, and outputs a DC power supply that meets the requirements. In this process, the control circuit unit 15 controls the DC conversion process and drives the power switch; S3, the sensor unit 22 of the monitoring and feedback module 11 collects various physical quantity information of the DC converter 6, such as current, voltage, etc., the data acquisition unit 23 collects the analog signal from the sensor and converts it into a digital signal, and the communication unit 24 can transmit the data to other devices or systems to realize data sharing and remote monitoring; at the same time, the sensor system 17 of the locking control module 9 monitors the current flowing through the DC converter 6, the input and output voltages, the proximity of the plug and the socket, etc., and provides data for the control chip 16; S4, the control chip 16 receives and processes the data from the sensor system 17, generates a control signal to drive the locking mechanism, and the actuator 18 receives the signal from the control chip 16, and realizes the locking or unlocking of the connection state between the plug and the socket by controlling the on and off of the circuit to ensure a stable connection; S5. The converted DC power supply is connected to the external device through the power output interface 19 to supply power to it. The circuit protection unit 20 monitors the output circuit status in real time. When encountering abnormal situations such as overload and short circuit, the circuit is controlled to be on and off for protection. The output indicator light 21 intuitively displays the working status of the output module 10.

[0043] Specifically, the power input interface 12 on one side of the housing 1 is connected to the external DC power supply by its interface structure and high-conductivity contact parts adapted to the external DC power supply according to the standard electrical connection specification. The filter circuit 13 is based on the synergistic effect of the characteristics of capacitors and inductors. The capacitor uses its own low-impedance bypass characteristics for high-frequency clutter, and the inductor relies on the inductive impedance barrier characteristics for low-frequency voltage fluctuations to deliver stable DC to the subsequent modules. The power circuit power supply 14 adopts the Boost mature circuit topology structure. When the input power is connected, the control circuit unit 15 accurately controls the on and off time of the power switch tube according to the preset conversion requirements, allowing the inductor to store energy when the switch tube is turned on, and the inductor releases energy when it is turned off and is subsequently rectified and filtered to achieve on-demand conversion of voltage and current parameters and output an adapted DC power supply. The sensor unit 22 uses a variety of sensing technologies, such as current transformers and voltage sensors to accurately capture current and voltage physical quantities. The data acquisition unit 23 uses analog-to-digital conversion technology to digitize analog signals according to the set sampling frequency. The communication unit 24 transmits data to other equipment systems based on wired or wireless communication protocols. At the same time, the sensor system 17 of the locking control module 9 uses electromagnetic induction, optical ranging and other means to monitor key status data and transmit it to the control chip 16 in real time. The control chip 16 has a built-in intelligent algorithm to quickly analyze the received data from the sensor system 17 and compare it with the preset threshold. Once it is determined that the connection is unstable, it will immediately generate a control signal. After receiving the signal, the executive component 18 controls the circuit on and off through electromagnetic drive and mechanical transmission to achieve the locking or unlocking of the plug and socket. The power output interface 19 is designed with a reliable electrical connection to output the converted electrical energy to external devices. The circuit protection unit 20 uses a series current sensor and a voltage sampling circuit for real-time monitoring. Once the current exceeds the load threshold or the voltage is abnormal, it immediately controls the relay to cut off the circuit. The output indicator light 21 is based on the circuit state. The normal light is green, and the abnormal light is red and flashing.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A DC converter with intelligent power-off function, comprising a housing (1), characterized in that: A direct current converter (6) is installed inside the housing (1). The direct current converter (6) comprises an input module (7), a conversion module (8), a locking control module (9), an output module (10), and a monitoring and feedback module (11). The input module (7) is used to receive an external direct current power supply and provide a direct current input for the module. The conversion module (8) is used to convert the voltage and current parameters of the input direct current power supply according to requirements. The locking control module (9) is used to control the locking and unlocking of the connection state of the direct current converter (6) to ensure a stable connection. The output module (10) is used to transmit the converted direct current power supply to an external device. The monitoring and feedback module (11) is used to monitor the working state of each module of the direct current converter (6) in real time and feed back these data to the control unit. The direct current converter (6) is used to receive electrical signals sent by the input module (7), the conversion module (8), the locking control module (9), the output module (10), and the monitoring and feedback module (11), and monitor and feedback the working state.

2. A DC converter with intelligent power-off function according to claim 1, characterized in that: An interface is provided on one side of the housing (1), a terminal 1 (3) is provided inside the interface, a clamping block (2) is provided at the bottom end of the interface, a plug is provided at the other end of the housing (1), a terminal 2 (4) is provided inside the plug, and a push rod (5) is provided at the top end of the housing (1).

3. A DC converter with intelligent power-off function according to claim 1, characterized in that: The input module (7) comprises a power input interface (12) and a filter circuit (13); the power input interface (12) is used to connect an external DC power supply and introduce the power supply into the DC converter (6); and the filter circuit (13) is used to input voltage fluctuations of the DC power supply and suppress interference noise.

4. A DC converter with intelligent power-off function according to claim 1, characterized in that: The conversion module (8) comprises a power circuit power supply (14) and a control circuit unit (15); the power circuit power supply (14) is used to convert voltage and current parameters of an input DC power supply and output a DC power supply that meets the requirements; and the control circuit unit (15) is used to control the DC conversion process and drive the power switch.

5. The DC converter with intelligent power-off function according to claim 1, characterized in that: The locking control module (9) comprises a control chip (16), a sensor system (17), and an execution component (18); the control chip (16) is used to receive and process signals and generate control signals to drive the locking mechanism; the sensor system (17) is used to measure the current flowing through the DC converter (6), the input and output voltages, and the proximity state of the plug and the socket, and provide data to the control chip (16) to determine whether to trigger the locking action; and the execution component (18) is used to receive signals from the control chip (16) and realize locking or unlocking by turning the control circuit on and off.

6. A DC converter with intelligent power-off function according to claim 1, characterized in that: The output module (10) comprises a power output interface (19), a circuit protection unit (20), and an output indicator light (21); the power output interface (19) is used to connect the converted and processed DC power to an external device and provide power; the circuit protection unit (20) is used to monitor the state of the output circuit and control the on and off of the circuit; and the output indicator light (21) is used to display the working state of the output module (10).

7. A DC converter with intelligent power-off function according to claim 1, characterized in that: The monitoring and feedback module (11) comprises a sensor unit (22), a data acquisition unit (23), and a communication unit (24); the sensor unit (22) is used to collect various physical quantity information related to the DC converter (6) and provide data basis for control and monitoring; the data acquisition unit (23) is used to collect analog signals transmitted by the sensor unit (22) and convert them into digital signals; and the communication unit (24) is used to transmit the collected data to other devices and systems and to perform data sharing and remote monitoring.

8. A DC converter with intelligent power-off function and operating method according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, connecting an external DC power supply to a power input interface (12) in an interface on one side of the housing (1), and after the power supply is processed by a filter circuit (13), voltage fluctuations are smoothed and interference clutter is suppressed, thereby providing a relatively stable DC input for subsequent modules; S2, the power circuit power supply (14) in the conversion module (8) converts the input DC power supply parameters such as voltage and current according to the requirements, and outputs a DC power supply that meets the requirements. During this process, the control circuit unit (15) controls the DC conversion process and drives the power switch; S3, the sensor unit (22) of the monitoring and feedback module (11) collects various physical quantity information from the DC converter (6), such as current, voltage, etc., the data acquisition unit (23) collects analog signals from the sensor and converts them into digital signals, and the communication unit (24) can transmit the data to other devices or systems to realize data sharing and remote monitoring; at the same time, the sensor system (17) of the locking control module (9) monitors the current flowing through the DC converter (6), the input and output voltages, the proximity between the plug and the socket, etc., and provides data for the control chip (16); S4, the control chip (16) receives and processes the data transmitted by the sensor system (17), generates a control signal to drive the locking mechanism, and the actuator (18) receives the signal from the control chip (16), and realizes locking or unlocking of the connection state between the plug and the socket by controlling the on and off of the circuit, thereby ensuring a stable connection; S5. The converted DC power is connected to an external device through the power output interface (19) to supply power to the external device. The circuit protection unit (20) monitors the state of the output circuit in real time and controls the circuit on and off for protection in case of abnormal conditions such as overload and short circuit. The output indicator light (21) intuitively displays the working state of the output module (10).

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