A charging pile calibration device and system for separating strong and weak electricity
By designing a strong and weak electric separation structure in the charging pile verification device, the problem of leakage risk during the use and maintenance of the charging pile verification device in the prior art is solved, and a safe and reliable verification and testing method and system are realized.
Patent Information
- Application Number
- CN202311278467.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-07
- Publication Date
- 2025-04-08
AI Technical Summary
The existing charging pile verification devices are prone to interweaving of strong and weak electric current during use and maintenance, resulting in leakage risk, endangering personal safety and increasing design complexity and cost.
Design a charging pile verification device for strong and weak current separation. By setting up a strong and weak current chamber and weak current chamber in the device, and realizing digital signal connection and communication between the two through a digital signal connector, ensuring the separation of strong and weak current, thereby avoiding the risk of leakage.
The safe operation of the charging pile verification device is realized, the risk of leakage is reduced, the complexity and cost of electromagnetic interference design of digital circuits is reduced, and the safety and reliability of the system is improved.
Smart Images
Figure CN119780544A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a charging pile calibration device and system for separating strong and weak electricity, belonging to the technical field of electric vehicle charging pile calibration and detection. Background Art
[0002] As a new energy electric vehicle infrastructure, electric vehicle charging piles involve trade settlement and require measurement and verification of the amount of electricity they charge. With the rapid development of new energy electric vehicles, charging piles have developed rapidly, with both stock and incremental growth increasing rapidly, and demand for use increasing rapidly.
[0003] At the same time, the existing charging pile verification and testing devices are limited by traditional instrument design methods, and there is a situation where strong and weak electricity are intertwined. Whether in the verification and testing process or in the inspection and maintenance process, there is a risk of high voltage and high current leakage, which endangers the personal safety of personnel and causes economic losses. At the same time, it also increases the complexity of digital circuit electromagnetic interference design, thereby increasing the design difficulty and cost. In order to adapt to the rapid development of electric vehicle charging piles, there is an urgent need for a charging pile verification device with a strong and weak current separation design, and a verification and testing method and system that can be safely operated. Summary of the invention
[0004] In view of the above technical deficiencies, the purpose of the present invention is to provide a charging pile calibration device and system with strong and weak electricity separation, so as to solve the safety problem of leakage during the use and maintenance of the charging pile calibration device in the prior art.
[0005] In order to achieve the above technical purpose, the technical solution adopted by the present invention is as follows: A charging pile calibration device and system with strong and weak electricity separation, including a charging pile calibration device with strong and weak electricity separation, a cloud platform and a remote control APP.
[0006] Furthermore, the charging pile calibration device with separation of strong and weak electricity is characterized in that it includes a strong current chamber, a weak current chamber, and a digital signal connector. It is also characterized in that the strong current chamber and the weak current chamber are physically separated by insulation. It is also characterized in that the low-voltage digital circuit in the strong current chamber is connected to the low-voltage data signal circuit in the weak current chamber through the digital signal connector.
[0007] Furthermore, the high-voltage chamber is provided with a calibration charging plug, a calibration charging socket, an electric energy parameter collector, a charging plug locking mechanism, a temperature sensor, a humidity sensor and a digital signal connector.
[0008] The calibration charging plug is characterized in that it provides a terminal configuration that matches the certified charging pile and the certified charging pile plug, and realizes connection of corresponding terminals with the calibration charging socket. It is also characterized in that the calibration charging plug is directly connected to the calibration load or the electric vehicle serving as the calibration load.
[0009] The calibration charging socket is characterized in that it provides a socket interface and terminal configuration that matches the calibration charging pile and the calibration charging pile plug, and realizes connection of corresponding terminals with the calibration charging plug; it is also characterized in that when the charging plug of the calibration electric vehicle charging pile is connected to the calibration socket, and at the same time the calibration plug is connected to the calibration load or the charging socket of the electric vehicle serving as the calibration load, and the strong and weak current charging pile calibration device is in the state of data collection and data reporting, the calibration electric vehicle charging pile can start charging normally.
[0010] The digital signal connector realizes the connection and communication of digital signals between the strong current chamber and the weak current chamber.
[0011] The electric energy parameter collector is characterized in that it realizes the collection of electric energy parameters of the charging circuit between the calibration charging socket and the calibration charging plug, including current, voltage, electric energy and power parameters, and realizes the function of converting the aforementioned electric energy parameter analog signal into a digital signal. It is also characterized in that it realizes the connection and communication between the electric energy parameter digital signal and the weak current chamber through the digital signal connector.
[0012] The charging plug locking mechanism is actually characterized in that when the charging plug locking mechanism is in a locked state, the certification charging plug cannot be unplugged, and when the charging plug locking mechanism is in an open state, the certification charging plug can be unplugged.
[0013] The temperature sensor realizes the temperature collection function in the strong current chamber, and is connected and communicated with the weak current chamber through the digital signal connector.
[0014] The humidity sensor realizes the temperature collection function in the strong current chamber, and is connected and communicated with the weak current chamber through the digital signal connector.
[0015] Furthermore, the weak current chamber is characterized by comprising: a position acquisition module, a charging data acquisition module, a switch device, an end verification device, a battery power supply module, a main control module and a communication module.
[0016] The position acquisition module is characterized in that it realizes the acquisition of the location data of the verification site.
[0017] The charging data acquisition module is characterized in that, during the calibration process, the charging communication data between the charging pile and the calibration load or the electric vehicle serving as the calibration load is collected, including data collection of digital signals and analog signals.
[0018] The battery power supply module is characterized in that it provides working power to the strong and weak current charging pile verification device and is equipped with a dedicated charging interface to charge the internal power storage unit.
[0019] The switch device is characterized in that it can connect and disconnect the output power of the battery power module.
[0020] The end-of-verification device is characterized in that it sends an end-of-verification instruction to the main control module.
[0021] The main control module is characterized in that it can receive data collected by the electric energy parameter collector, temperature collection module, humidity collection module, position collection module, and charging data collection module, and send them to the communication module. It is also characterized in that it receives the end of calibration instruction from the end of calibration device and stops all data collection and data sending. It is also characterized in that it realizes the function of placing the charging plug locking mechanism in an open state or a locked state. It is also characterized in that it realizes the reception and execution of remote control instructions of the cloud platform through the communication module.
[0022] The communication module is characterized in that it realizes communication with the cloud platform, and is also characterized in that it receives data sent by the main control module and reports it to the cloud platform. It is also characterized in that it receives remote control instructions from the cloud platform and sends them to the main control module for execution.
[0023] Furthermore, the digital signal connector is characterized in that it realizes the connection and communication of digital signals between the high-current chamber and the low-current chamber, and the communication methods include RS485, CAN, TTL, serial port and the like.
[0024] Furthermore, the cloud platform is characterized in that it receives data collected and reported by the strong and weak electricity separation charging pile calibration device, generates calibration records and calibration reports, provides report management, provides report approval, viewing and downloading functions, provides storage and query of calibration history records, and is also characterized in that it sends remote status data of the strong and weak electricity separation charging pile calibration device to the remote control APP, and is also characterized in that it receives remote control instructions from the remote control APP, and sends the received control instructions of the remote control APP to the main control module.
[0025] Furthermore, the remote control APP is characterized in that it can be run on smart phones, tablet computers and other smart terminal devices. It is also characterized in that it realizes the remote status display and remote control functions of the charging pile calibration device with strong and weak electricity separation. It is also characterized in that the remote control APP can view the calibration results and calibration reports. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 System architecture diagram of charging pile calibration device and system with strong and weak electricity separation; Figure 2 The strong and weak electricity separation charging pile calibration device and system workflow diagram; Figure 3 Functional structure diagram of the charging pile calibration device and system with strong and weak current separation; Figure 4 Functional block diagram of the cloud platform of the charging pile calibration device and system with strong and weak electricity separation; Figure 5 Functional block diagram of the remote control APP of the charging pile calibration device and system with strong and weak electricity separation. DETAILED DESCRIPTION
[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.
[0031] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments: Figure 1 As shown, a strong and weak current separation charging pile calibration device and system include a strong and weak current separation charging pile calibration device 1, a cloud platform 2 and a remote control APP 3. The function of the strong and weak current separation charging pile calibration device 1 is to realize the on-site calibration data collection of electric vehicle charging piles and report it to the cloud platform. The cloud platform uses the collected data reported by the strong and weak current separation charging pile calibration device 1 and the data uploaded by the remote control APP 3 to analyze and generate a calibration report, and provides a management function for the calibration report.
[0032] The specific workflow of the present invention is as follows Figure 1 , Figure 2 and Figure 3 The working process is as follows: 2-1, connect and fix the strong and weak current separation charging pile calibration device 1 to the calibration load or the electric vehicle serving as the calibration load through the calibration charging plug 1-4; S2, connect the charging plug of the electric vehicle charging pile to be tested to the calibration charging socket 1-3 of the strong and weak current separation charging pile calibration device 1; S3, the charging pile starts charging; S4, the strong and weak current separation charging pile calibration device 1 collects data, including charging voltage, current, electric energy, power, temperature data, humidity data, position data, and charging data, and uploads it to the cloud platform 2; S5, through the remote control APP 3, enter the charging pile and charging interface information required for calibration, the charging pile appearance calibration item information and the indication information of the charging pile electric energy metering, and upload them to the cloud platform 2; S6, the cloud platform 2 receives the data collected and reported by the strong and weak current separation charging pile calibration device 1 and the remote control APP 3, and conducts calibration analysis to generate a calibration report, providing calibration report and calibration record management functions; S7, the tested charging pile stops charging; S8, disconnects the charging plug of the tested charging pile from the calibration socket of the strong and weak current separation charging pile calibration device; S9, disconnects the strong and weak current separation charging pile calibration device from the calibration load or the electric vehicle serving as the calibration load through the calibration charging plug; S10, the calibration ends.
[0033] like Figure 1 and Figure 3As shown, the functional structure of the strong and weak current separation charging pile calibration device 1 includes: a strong current chamber 1-1 and a weak current chamber 1-2.
[0034] The high-voltage chamber 1-11 is equipped with the following functional modules: The calibration charging socket 1-3 is used to connect the charging gun of the charging pile, and the other end is fixed with a calibration charging plug 1-4, which can be directly connected to the calibration load or the electric vehicle used for the calibration load, and also plays the role of fixing the strong and weak current separation charging pile calibration device 1. The calibration charging socket 1-3 and the calibration charging plug 1-4 provide a socket interface and terminal configuration that matches the certified charging pile and the certified charging pile plug, and the corresponding terminals of the calibration charging socket 1-3 and the calibration charging plug 1-4 are connected. When the charging gun of the certified charging pile is connected to the calibration charging socket, and the calibration charging plug is connected to the calibration load or the vehicle used as the calibration load, the charging pile can start charging normally, and the strong and weak current separation charging pile calibration device 1 is also in working state. The types of the certified charging piles include but are not limited to DC charging piles, AC charging piles and super charging piles;
[0035] The electric energy parameter collector 1-5 realizes the collection of electric energy parameters including current, voltage, electric energy and power of the charging circuit connected between the calibration charging socket 1-3 and the calibration charging plug 1-4, wherein the circuit includes a DC circuit and an AC circuit, and outputs the metering data to the main control module 1-15; The temperature acquisition module 1-6 has a built-in non-strong and weak current separation type temperature sensor to realize the temperature data acquisition of the calibration site environment and output the data to the main control module 1-15; The humidity collection module 1-7 has a built-in humidity sensor for collecting humidity data at the calibration site and outputting the data to the main control module 1-15; The charging plug locking mechanism 1-8 is used to lock the test charging plug with the test load or the electric vehicle used to test the test load during the charging process. The test charging plug 1-4 cannot be pulled out, ensuring safe operation of the charging process.
[0036] The weak current chamber 1-2 is equipped with the following functional modules: The position acquisition module 1-10 has a built-in positioning module, which can use Beidou positioning or GPS positioning technology to realize the location information data collection of the calibration site and output the data to the main control module 1-15; The charging data acquisition module 1-16 has a built-in analog signal module connected to the corresponding analog signal circuit according to different types of information to realize analog signal data acquisition, a built-in CAN communication module, and is connected to the CAN bus between the calibration charging socket 1-3 and the calibration charging plug 1-4 to realize the collection of charging communication data, and output the data to the main control module 1-15; The battery power supply module 1-11 provides working power to the strong and weak current separation type charging pile calibration device. The battery arranged inside the module can be lithium ion or other types, which can support the working power demand of the strong and weak current separation type charging pile calibration device 1, and is equipped with a dedicated charging interface to charge the battery; The switch device 1-12 is used to cut off the power supply output of the battery power supply module 1-11 by setting a switch key, so as to realize the function of shutting down the strong and weak current separation charging pile verification device 1; The end verification device 1-13 is used to send an end verification instruction to the main control module 1-15 by setting a switch key or button, so that the main control module 1-15 stops data collection and data reporting, and ends the charging pile verification operation; The main control module 1-15 receives data collected by the electric energy parameter collector, the temperature collection module, the humidity collection module, the position collection module, and the charging data collection module, and sends the data to the communication module 1-14. The main control module 1-15 can receive the end of the verification instruction of the verification device 1-13, and stop all data collection and data transmission; the main control module 1-15 can put the charging plug locking mechanism 1-8 in an open state or a locked state, so as to lock the verification charging plug on the verification load or the socket of the electric vehicle used for the verification load to ensure charging safety; The communication module 1-14 realizes communication with the cloud platform 2. The communication technology solution includes but is not limited to 2G, 3G, 4G, 5G, 6G, wifi, rola and other communication methods. It receives the data sent by the main control module 1-15 and reports it to the cloud platform 2.
[0037] The digital signal connector 1-9 realizes the connection and communication of digital signals between the strong current chamber 1-1 and the weak current chamber 1-2. The communication methods include RS485, CAN, TTL, serial port and the like.
[0038] like Figure 1 and Figure 4As shown, the cloud platform 2 receives all the collected and reported data 2-1 of the strong and weak current separation charging pile calibration device 1 through the wireless network; receives the data uploaded by the remote control APP3 and the remote control instructions 2-2 for the strong and weak current separation calibration device; sends the control instructions 2-3 of the remote control APP to the forced separation charging pile calibration device 1, generates calibration records and calibration reports 2-4, realizes the calibration report management function 2-5, and provides the calibration history record management function 2-6.
[0039] like Figure 1 and Figure 5 As shown, the remote control APP 3 is a terminal application, an application running on smart phones, tablet computers and other smart terminal devices, providing a user operation interface, supporting calibration personnel to input and upload cloud data 3-1, realize remote control 3-2 of the strong and weak separation charging pile calibration device 1, realize the calibration work management function 3-3, upload the input information and calibration device control instructions to the cloud platform 2 function 3-4, and can view the calibration results and calibration reports 3-6. The communication technology solutions adopted by the remote control APP 3 include but are not limited to 2G, 3G, 4G, 5G, 6G, wifi, rola and other communication methods.
Claims
1. A charging pile calibration device and system with strong and weak electricity separation, including a charging pile calibration device with strong and weak electricity separation, a cloud platform and a remote control APP.
2. The charging pile calibration device with strong and weak current separation according to claim 1 is characterized in that It includes a strong current chamber, a weak current chamber, and a digital signal connector. It is also characterized in that the strong current chamber and the weak current chamber are physically separated by insulation. It is also characterized in that the low-voltage digital circuit in the strong current chamber and the low-voltage data signal circuit in the weak current chamber are connected through the digital signal connector.
3. The high-voltage chamber according to claim 2 is provided with a calibration charging plug, a calibration charging socket, an electric energy parameter collector, a charging plug locking mechanism, a temperature sensor, a humidity sensor and a digital signal connector; The test charging plug is characterized in that: Providing a terminal configuration that matches the tested charging pile and the tested charging pile plug, and realizing the connection of the corresponding terminals with the tested charging socket, wherein the tested charging plug is directly connected to the tested load or the electric vehicle serving as the tested load, and such connection is realized without any additional connecting cables and connector devices; The calibration charging socket is characterized in that it provides a socket interface and terminal configuration that matches the calibration charging pile and the calibration charging pile plug, and realizes the connection of corresponding terminals with the calibration charging plug; it is also characterized in that when the charging plug of the calibration electric vehicle charging pile is connected to the calibration socket, and the calibration plug is connected to the calibration load or the charging socket of the electric vehicle serving as the calibration load, and the contact charging pile calibration device is in the state of data collection and data reporting, the calibration electric vehicle charging pile can start charging normally; A digital signal connector realizes the connection and communication of digital signals between the strong current chamber and the weak current chamber; The electric energy parameter collector is characterized in that it realizes the collection of electric energy parameters of the charging circuit between the calibration charging socket and the calibration charging plug, including current, voltage, electric energy and power parameters, and realizes the function of converting the analog signal of the above-mentioned electric energy parameters into a digital signal. It is also characterized in that it realizes the connection and communication between the electric energy parameter digital signal and the weak current chamber through the digital signal connector; The charging plug locking mechanism is characterized in that when the charging plug locking mechanism is in a locked state, the verification charging plug cannot be unplugged, and when the charging plug locking mechanism is in an open state, the verification charging plug can be unplugged; The temperature sensor realizes the temperature collection function in the strong current chamber, and is connected and communicated with the weak current chamber through the digital signal connector; The humidity sensor realizes the temperature collection function in the strong current chamber, and is connected and communicated with the weak current chamber through the digital signal connector.
4. The weak current chamber according to claim 2, characterized in that include: Position acquisition module, charging data acquisition module, switch device, end verification device, battery power supply module, main control module and communication module; The position acquisition module is characterized in that it realizes the acquisition of the position data of the verification site; The charging data acquisition module is characterized in that, during the verification process, the charging communication data between the charging pile and the verification load or the electric vehicle serving as the verification load is collected, including data collection of digital signals and analog signals; The battery power supply module is characterized in that it provides working power to the contact charging pile verification device and is equipped with a dedicated charging interface to charge the internal power storage unit; The switch device is characterized in that it cuts off the output power of the battery power module; The end-of-verification device is characterized in that it sends an end-of-verification instruction to the main control module; The main control module is characterized in that it can receive data collected by the electric energy metering acquisition module, the temperature acquisition module, the humidity acquisition module, the position acquisition module, and the charging data acquisition module, and send the data to the communication module. It is also characterized in that it receives the end verification instruction of the end verification device and stops all data collection and data transmission; it is also characterized in that it realizes the function of placing the charging plug locking mechanism in an open state or a locked state; it is also characterized in that it realizes receiving and executing the remote control instructions of the cloud platform through the communication module; The communication module is characterized in that it realizes communication with the cloud platform, and is also characterized in that it receives data sent by the main control module and reports it to the cloud platform. It is also characterized in that it receives remote control instructions from the cloud platform and sends them to the main control module for execution.
5. The digital signal connector according to claim 2, characterized in that: The digital signal connection and communication between the strong current chamber and the weak current chamber are realized, and the communication methods include RS485, CAN, TTL, serial port and the like.
6. The cloud platform according to claim 1, characterized in that: Receive data collected and reported by the strong and weak electricity separation charging pile calibration device, generate calibration records and calibration reports, provide report approval management, provide report approval, viewing and download functions, provide storage and query of calibration history records, and its characteristics are also that the remote status data of the strong and weak electricity separation charging pile calibration device is sent to the remote control APP, and its characteristics are also that the remote control instructions of the remote control APP are received, and the control instructions of the remote control APP received are sent to the main control module.
7. The remote control APP according to claim 1, characterized in that: An application that can run on smartphones, tablets and other smart terminal devices. Its feature is that it realizes the remote status display and remote control functions of the charging pile calibration device with strong and weak electricity separation, and its feature is that the remote control APP can view the calibration results and calibration reports.