Remote system upgrading device of electric automobile direct current charger and electric automobile direct current charger

Abstract

The utility model discloses a remote system upgrading device of an electric automobile direct current charger and the electric automobile direct current charger. The remote system upgrading device comprises a remote control module, a time relay and a networking module, the remote control module communicates with a main control board of the charger through the networking module, and the remote control module is used for sending a control instruction to the main control board and sending an upgrade package to the main control board according to a feedback message of the main control board; the time relay is used for disconnecting the power supply after the main control board receives the control instruction so as to enable the main control board to discharge, and after the time relay is disconnected, the main control board is electrified and restarted after being automatically closed again after set time, and then a feedback message is sent to the remote control module. According to the utility model, enough time can be reserved for resetting of the main control board, and normal operation of the main control board after program upgrading can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to direct current charger remote control technical field, specifically speaking is a kind of electric vehicle direct current charger remote system upgrading device and electric vehicle direct current charger. BACKGROUND

[0002] With the rapid development of new energy technology, the renewal of electric vehicles is very rapid.As the energy supply equipment of electric vehicles, the upgrading of charger technology is also more frequent, and needs to be quickly matched with electric vehicles.If the charging program of the charger is not upgraded, it will cause many problems in the process of charging the electric vehicle with the charger, not only affect the charging speed of the electric vehicle, but also affect the safety of the charger.

[0003] In order to improve the traditional way when upgrading the charger, the operation and maintenance personnel need to go to the charger installation site, on-site disassembly, and sequentially upgrade the software of each charger.This process is tedious and consumes a lot of manpower and material resources.In the prior art, the charger is often upgraded remotely to quickly match the charger with the electric vehicle.In order to ensure sufficient upgrading of the charger, sufficient upgrading time is needed, but if the time is too long, the upgrading efficiency will be reduced, and if the time is too short, the upgrading effect will be affected. UTILITY MODEL CONTENTS

[0004] In order to solve the problem of the prior art that the upgrading time of the charger is too long or too short, the utility model provides a remote system upgrading device for electric vehicle direct current charger and electric vehicle direct current charger, which simplifies the upgrading steps of the electric vehicle direct current charger.

[0005] The utility model adopts the technical scheme that a remote system upgrading device for electric vehicle direct current charger comprises a remote control module, a time relay and a networking module.

[0006] The remote control module communicates with the main control board of the charger through the networking module, and the remote control module is used to send control instructions to the main control board and send upgrading packages to the main control board according to the feedback message of the main control board.

[0007] The time relay is used to disconnect the main control board to discharge after receiving the control instructions, and the time relay is automatically re-closed after a set time to make the main control board power on and send feedback messages to the remote control module after restarting.

[0008] As a further optimization of the utility model, the remote control module comprises a remote control submodule and a communication unit interface, and the remote control submodule is connected with the main control board through the communication unit interface.

[0009] As a further optimization of the utility model discloses a kind of remote system upgrade device of electric vehicle direct current charger: the time relay is connected with main control panel by the time relay connection port of main control panel.

[0010] The utility model discloses a kind of electric vehicle direct current charger, including main control panel, networking module and the remote system upgrade device described above, remote system upgrade device is used to remotely upgrade direct current charger, and main control panel is electrically connected with the time relay.

[0011] As a further optimization of the utility model discloses a kind of electric vehicle direct current charger: the main control panel includes direct current charging control module and alternating current power supply control module, and direct current charging control module includes direct current CPU submodule, and CPU submodule is connected with electronic lock control module, CC signal monitoring module and storage module, and alternating current power supply control module includes alternating current CPU submodule, and alternating current CPU submodule is connected with alternating current contactor, alternating current power supply interface and molded case circuit breaker, and the time relay is connected with alternating current contactor and the time relay control port respectively, and alternating current power supply interface is connected with the input end of molded case circuit breaker, and the output end of molded case circuit breaker is connected with alternating current contactor.

[0012] As a further optimization of the utility model discloses a kind of electric vehicle direct current charger: direct current charging control module includes communication port, insulation monitoring interface, temperature monitoring port, indicating lamp control port contactor control port and communication emergency stop control port connected with the direct current CPU submodule.

[0013] As a further optimization of the utility model discloses a kind of electric vehicle direct current charger: communication port includes first CAN communication subport and RS232 subport connected with the direct current CPU submodule.

[0014] As a further optimization of the utility model discloses a kind of electric vehicle direct current charger: communication emergency stop control port includes RS485 communication subport, second CAN communication subport and emergency stop subport.

[0015] Compared with prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a remote control module, time relay and networking module are set up, and remote control module is connected with the main control board of charger through networking module, and remote control module is used for sending control instruction to the main control board, and sends the upgrade package to the main control board according to the feedback message of main control board, and time relay is used for disconnecting after the main control board receives control instruction to make main control board discharge, and time relay makes main control board energization and sends feedback message to remote control module when re-closing automatically after disconnecting, can give main control board reset enough time, ensure that upgrade package can be successfully downloaded to main control board, make main control board program upgrade can normally operate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the structural diagram of the utility model;

[0018] Fig. 2 It is the schematic diagram of each port connection mode of remote system upgrade device;

[0019] Fig. 3 It is the circuit schematic diagram of the utility model. DETAILED DESCRIPTION

[0020] The utility model discloses a remote control module, time relay and networking module are set up, and remote control module is connected with the main control board of charger through networking module, and remote control module is used for sending control instruction to the main control board, and sends the upgrade package to the main control board according to the feedback message of main control board, and time relay is used for disconnecting after the main control board receives control instruction to make main control board discharge, and time relay makes main control board energization and sends feedback message to remote control module when re-closing automatically after disconnecting, can give main control board reset enough time, ensure that upgrade package can be successfully downloaded to main control board, make main control board program upgrade can normally operate.

[0021] A kind of remote system upgrade device of electric automobile direct current charger, such as Figs. 1-3As shown, including: remote control module, time relay and networking module. Networking module has 4G module. Each operator SIM card, card or through the network port connection industrial router, so that the whole system can realize the Internet of Things. Remote control module through the networking module and the main control board of the charger communication, remote control module is used to send control instructions to the main control board, and according to the feedback message of the main control board to the main control board to send upgrade package, realize the upload, download and upgrade of software. Under the condition of remote upgrade, reset each component of the charger, keep the original state, remote control module sends restart upgrade operation instruction to the charging control system through the networking module, so as to complete the upgrade iteration of the product, greatly simplify the cumbersome steps of charger system upgrade, make the upgrade process more intelligent, convenient, safe and reliable. Remote control module includes remote control submodule and communication unit interface, remote control submodule is connected with the main control board through the communication unit interface. Time relay is used to disconnect the power supply after the main control board receives the control instruction to make the main control board discharge, and the time relay is automatically re closed after the disconnection for a set time to make the main control board power on and restart to send feedback message to the remote control module, and the time relay is connected with the main control board through the time relay connection port of the main control board. The main control board controls the on-off of the time relay through the I / O port, and the time relay is always in the closed state under normal power-on condition, and the I / O port gives the time relay a reverse pulse, at this time, the time relay will be disconnected, because the time relay has the characteristics of delay on-off, it can reserve enough time for system reset, which can ensure that the system can be successfully downloaded into the main control board, and each component unit of the direct current charger will be upgraded together.

[0022] An electric vehicle DC charger includes a main control board, a networking module, and the aforementioned remote system upgrade device. The remote system upgrade device is used for remotely upgrading the DC charger. The main control board is electrically connected to the time relay. The main control board includes a DC charging control module and an AC power control module. The DC charging control module includes a DC CPU submodule, which is connected to an electronic lock control module, a CC signal monitoring module, and a storage module. The DC charging control module includes a communication port, an insulation monitoring interface, a temperature monitoring port, an indicator light control port, a contactor control port, and a communication emergency stop control port connected to the DC CPU submodule. The DC charging control module also includes a switch input interface, a display screen interface, an LED driver interface, a printer interface, a card reader module interface, and a relay control port. The DC CPU submodule uses an STM32F103ZET6 microcontroller with a maximum operating frequency of 72MHz, low power consumption, up to 80 fast I / O ports, and up to 9 communication interfaces. The DC CPU submodule is the core unit of the entire DC charging control system, and other internal units of the DC charger are controlled by programming the DC CPU submodule. The digital input interface connects to the auxiliary contacts of the DC contactor of the DC charger and the limit switch contacts for door opening / closing monitoring, monitoring the status of the DC contactor and limit switches to ensure the safe and reliable operation of the charger. The DC charging control module communicates with each module of the electric vehicle DC charger through the communication ports of the main control board, collecting real-time status and analog signals from each device. It can also issue control commands to each communication port to change the operating status of the controlled equipment to achieve the required functions.

[0023] The communication ports include a first CAN communication sub-port and an RS232 sub-port connected to the DC CPU sub-module. The emergency stop control port includes an RS485 communication sub-port, a second CAN communication sub-port, and an emergency stop sub-port. The RS485 communication sub-port connects to the DC charger's energy meter to monitor AC side voltage, current, and charging energy in real time. The second CAN communication sub-port connects to the charger's charging module CAN interface to control the charging module's operating status in real time via the CAN bus. The emergency stop sub-port connects to the DC charger's emergency stop button, enabling real-time control of the DC contactor coil's state for safer charging. The first and second CAN communication sub-ports are represented by the CAN communication sub-port in the diagram. The CAN communication sub-port communicates with the DC charger's components in real time via the CAN bus. The RS232 sub-port connects to the DC charger's touchscreen display, card reader module, and printer, enabling real-time data interaction with these devices. The communication ports also include a LAN communication sub-port, which can connect to an industrial router, providing network support for the charger's overall control system, allowing for program upload, download, and updates from remote terminals.

[0024] The communication port, temperature monitoring port and indicator light control port are directly provided by the direct current charging control module; the temperature monitoring port is connected with a thermistor in the direct current charger to form a monitoring loop, which can monitor the temperature of important parts in the cabinet to ensure safe operation of the charger. The indicator light control port includes an indicator light control loop, which reflects the working state of the charger in real time through the connection of the indicator light, including normal charging, fault, operation, shutdown, etc. of the charger. The time relay is connected with the coil side of the alternating current contactor and the relay control port respectively. The relay control port is connected with the time relay and the intermediate relay respectively, and the contactor control port provides a contactor control line to connect the coil of the direct current contactor, intermediate relay and alternating current contactor, which can control the direct current contactor, intermediate relay and alternating current contactor of the direct current charger power supply part to realize the output charging, power distribution, fan operation and residual current discharge of the direct current charger.

[0025] The contactor control port, relay control port and communication emergency stop control port are connected with external units through the charging monitoring unit interface board of the direct current charging control module; the insulation monitoring port is connected with the direct current side of the charger through the charging monitoring unit interface board of the direct current charger insulation monitoring unit. The insulation monitoring port is connected with the direct current side of the direct current charger, which can monitor the insulation resistance value of the direct current side of the direct current charger in real time to ensure the safety of the direct current side of the direct current charger.

[0026] The alternating current power supply control module includes an alternating current CPU submodule, and the alternating current CPU submodule is connected with an alternating current contactor, an alternating current power supply interface and a molded case circuit breaker. The time relay is connected with the alternating current contactor and the time relay control port respectively. The alternating current power supply interface is connected with the input end of the molded case circuit breaker, and the output end of the molded case circuit breaker is connected with the alternating current contactor. The alternating current power supply interface provides alternating current power supply for the overall control system of the electric vehicle charger and external debugging equipment (such as a notebook computer), so that the overall remote upgrading operation is more convenient and fast. The alternating current power supply interface of the alternating current power supply control module is also connected with a switching power supply, which provides stable and reliable direct current power supply for each component unit in the direct current charger. The alternating current power supply control module also includes an air switch.

[0027] The time relay is a switch for supplying power to the AC contactor, the AC contactor is a switch for controlling the power supply of the whole machine, the time relay closes to supply power to the coil of the AC contactor, the AC contactor is attracted to normally supply power to the whole machine, the time relay is disconnected to disconnect the power supply of the coil of the AC contactor, the AC contactor is disconnected, and the whole machine is in a state of not being powered on. Because of the time delay characteristic of the time relay, after the time relay receives the disconnection instruction, the AC contactor is disconnected, and the whole machine stops supplying power immediately. Under the control of the time relay, the whole machine will not be powered on immediately after being powered off, but will have a certain time buffer. This time is controlled according to different machine models. After the time relay reaches the preset time, the time relay is closed again, at this time the whole machine is powered on, the main control board reads the uploaded system, and starts to restart each component. The AC CPU submodule and the DC CPU submodule are integrated into the main control board.

[0028] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those of ordinary skill in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A remote system upgrade device for a DC charger for electric vehicles, characterized in that: include: Remote control module, time relay and networking module; The remote control module communicates with the charger's main control board via the network module. The remote control module is used to send control commands to the main control board and to send upgrade packages to the main control board based on feedback messages from the main control board. The time relay is used to disconnect after the main control board receives a control command to discharge the main control board. After the time relay is disconnected, it automatically closes again after a set time to power on the main control board and restart it before sending a feedback message to the remote control module.

2. The remote system upgrade device for an electric vehicle DC charger as described in claim 1, characterized in that: The remote control module includes a remote control submodule and a communication unit interface. The remote control submodule is connected to the main control board through the communication unit interface.

3. The remote system upgrade device for an electric vehicle DC charger as described in claim 1, characterized in that: The time relay is connected to the main control board via the time relay connection port of the main control board.

4. A DC charger for electric vehicles, characterized in that: It includes a main control board, a networking module, and a remote system upgrade device as described in any one of claims 1-3. The remote system upgrade device is used to remotely upgrade the DC charger, and the main control board is electrically connected to the time relay.

5. The electric vehicle DC charger as described in claim 4, characterized in that: The main control board includes a DC charging control module and an AC power control module. The DC charging control module includes a DC CPU sub-module, which is connected to an electronic lock control module, a CC signal monitoring module, and a storage module. The AC power control module includes an AC CPU sub-module, which is connected to an AC contactor, an AC power interface, and a molded case circuit breaker. The time relay is connected to the AC contactor and the control port of the time relay, respectively. The AC power interface is connected to the input terminal of the molded case circuit breaker, and the output terminal of the molded case circuit breaker is connected to the AC contactor.

6. The electric vehicle DC charger as described in claim 5, characterized in that: The DC charging control module includes a communication port, an insulation monitoring interface, a temperature monitoring port, an indicator light control port, a contactor control port, and a communication emergency stop control port, all connected to the DC CPU submodule.

7. The electric vehicle DC charger as described in claim 6, characterized in that: The communication ports include a first CAN communication sub-port and an RS232 sub-port connected to the DC CPU sub-module.

8. The electric vehicle DC charger as described in claim 6, characterized in that: The communication emergency stop control port includes an RS485 communication sub-port, a second CAN communication sub-port, and an emergency stop sub-port.

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