Intelligent charging gun with protocol conversion function

Abstract

The application relates to the technical field of charging guns, in particular to an intelligent charging gun with protocol conversion function. The built-in control module of the application realizes real-time conversion between charging pile protocols and vehicle charging protocols, and is provided with a heat dissipation structure arranged around the control module, which comprises heat dissipation fins fixed on the surface of a processor unit and a heat conduction channel; the heat conduction channel comprises a heat conduction pipe and a heat conduction groove, one end of the heat conduction pipe is in thermal contact with the heat dissipation fins, the other end of the heat conduction pipe extends to the inner surface of the shell, and the heat conduction groove is distributed along the inner wall of the shell; a built-in communication antenna is electrically connected with the control module and supports 4G communication; a cable interface is arranged at the rear end of the shell and is electrically connected with the control module through a cable to connect a charging pile body. The application realizes cross-protocol charging compatibility, a single charging gun can be adapted to various standard vehicles, the utilization rate of charging infrastructure and user experience are improved, and the stable and reliable operation of the system under complex working conditions is ensured through the heat dissipation structure.

Description

Technical Field

[0001] This application relates to the technical field of charging guns, and in particular to a smart charging gun with protocol conversion function. Background Technology

[0002] With the globalization of the new energy vehicle industry, electric vehicle charging infrastructure is rapidly becoming widespread worldwide. However, there are significant differences in the charging protocol standards adopted by different countries and regions, such as China's GB / T standard, Japan's CHAdeMO standard, and Europe and the United States' CCS standard. These standards differ in terms of signal voltage, communication protocols, handshake procedures, and safety requirements, leading to increasingly prominent cross-border charging compatibility issues.

[0003] In existing technologies, charging guns typically only support the charging standards of specific countries or regions, failing to meet diverse charging needs. Furthermore, existing charging guns have insufficient heat dissipation performance, easily overheating during high-power charging, affecting equipment stability and lifespan. This situation needs further improvement. Summary of the Invention

[0004] To address the problem of insufficient heat dissipation performance in existing charging guns, which easily leads to overheating during high-power charging and affects equipment stability and lifespan, this application provides a smart charging gun with protocol conversion function, comprising: Charging gun casing; A charging connector is located at the front end of the charging gun housing and has a standardized plug-in structure. The control module, built into the charging gun housing, includes a processor unit and a storage unit. The processor unit is used to perform real-time conversion between the charging pile protocol and the vehicle charging protocol. The storage unit stores multiple charging protocol standards. The control module is electrically connected to the charging connector through internal wires. A heat dissipation structure is disposed around the control module, including a heat sink and a heat conduction channel. The heat sink is fixed to the surface of the processor unit. The heat conduction channel includes a heat conduction pipe and a heat conduction channel. One end of the heat conduction pipe is in thermal contact with the heat sink, and the other end extends to the inner surface of the charging gun housing. The heat conduction channel extends and is distributed along the inner wall of the charging gun housing. A communication antenna, built into the charging gun housing, is electrically connected to the control module and is used for 4G communication connection; The cable interface is located at the rear end of the charging gun housing and is electrically connected to the control module via a cable, for connecting to the main body of the charging pile.

[0005] By adopting the above technical solution, the charging gun shell provides structural support and protection for the entire system, and the charging connector at its front end adopts a standardized plug-in structure. The control module, as the core of the system, is built into the charging gun shell. The processor unit is used for real-time conversion between the charging pile protocol and the vehicle charging protocol, and the storage unit stores multiple charging protocol standards. The control module is electrically connected to the charging connector via internal wires. The system is equipped with a heat dissipation structure, located around the control module. The heat dissipation structure includes heat sinks and heat conduction channels. The heat sinks are fixed to the surface of the processor unit. The heat conduction channels include heat pipes and heat conduction grooves for heat conduction. One end of the tube is in thermal contact with the heat sink, and the other end extends to the inner surface of the charging gun housing. The heat conduction channels extend and are distributed along the inner wall of the charging gun housing. To achieve communication functionality, the system has a built-in communication antenna, which is electrically connected to the control module for 4G communication. A cable interface is provided at the rear of the charging gun housing, which is electrically connected to the control module via a cable for connecting to the charging pile body. Cross-protocol charging compatibility is achieved, and a single charging gun can be adapted to multiple standard vehicles, greatly improving the utilization rate of charging infrastructure and user experience. At the same time, the heat dissipation structure ensures the stable and reliable operation of the system under complex working conditions.

[0006] Optionally, the surface of the heat sink is provided with multiple parallel heat dissipation ridges.

[0007] By adopting the above technical solution, multiple parallel heat dissipation ridges are set on the surface of the heat sink, which significantly increases the effective heat dissipation area of ​​the heat sink and improves the contact area with air, thereby greatly improving the heat dissipation efficiency. The parallel arrangement of the heat dissipation ridges forms a regular heat dissipation channel, which is conducive to air flow and heat conduction, and can dissipate the heat generated by the processor unit more quickly. This structural design can effectively prevent overheating when the processor is operating at high frequency, ensure the stability and reliability of the protocol conversion function, extend the service life of the equipment, and ensure the stable performance of the charging gun under long-term working conditions.

[0008] Optionally, the heat-conducting channel is a U-shaped groove structure disposed on the inner wall of the charging gun housing.

[0009] By adopting the above technical solution, a continuous and efficient heat conduction path is formed by designing the heat conduction channel as a U-shaped groove structure set on the inner wall of the charging gun shell. The U-shaped groove structure increases the contact area between the heat conduction channel and the inner wall of the shell, improves the heat conduction efficiency, and can better transfer heat from the control module to the shell surface. In addition, the U-shaped design allows the heat to be evenly distributed along the arc path of the groove, avoiding local overheating and realizing effective heat diffusion.

[0010] Optionally, the charging gun housing includes a gun body and a handle disposed on the end of the gun body away from the charging connector. The handle is provided with a finger groove and an anti-slip structure. The finger groove is a recessed groove structure, and the anti-slip structure is a raised texture disposed on the side of the handle.

[0011] By adopting the above technical solution, and designing the charging gun shell to include a gun body and a handle, and setting finger grooves and anti-slip structures on the handle, the user experience and safety of operators are significantly improved. The recessed groove structure of the finger groove provides operators with a comfortable grip position, conforms to ergonomic design, and reduces hand fatigue during long-term operation. The raised textured anti-slip structure on the side of the handle increases the friction when gripping, ensuring a stable grip even in wet or oily environments, and effectively preventing the charging gun from accidentally slipping.

[0012] Optionally, the gun body surface is provided with an identification patch area for attaching identification labels.

[0013] By adopting the above technical solution, an identification patch area is set on the surface of the charging gun, providing a dedicated location for affixing identification labels. This facilitates the labeling of key information such as the device's protocol conversion function, supported charging standard types, and technical parameters. The identification patch area allows operators to quickly identify the charging gun's protocol conversion capabilities and clearly understand the types of vehicles it can be used with, avoiding charging failures due to protocol incompatibility. At the same time, the identification patch area facilitates equipment management and maintenance, allowing for the affixing of management labels such as equipment number and maintenance date, thus improving the standardized management level of charging facilities.

[0014] Optionally, the control module further includes: A protocol parsing circuit, electrically connected to the processor unit, is used to parse the received charging protocol messages; The protocol conversion unit is integrated within the processor unit and is configured with a dynamic protocol mapping table; The encryption chip communicates bidirectionally with the processor unit and is used to perform AES encryption processing on the communication data; A temperature acquisition module is used to monitor the operating temperature of the processor unit in real time and feed it back to the processor unit.

[0015] By adopting the above technical solution, the control module integrates a protocol parsing circuit, a protocol conversion unit, an encryption chip, and a temperature acquisition module, significantly improving the intelligence level and safety performance of the charging gun. The protocol parsing circuit can accurately parse various charging protocol messages, ensuring the accuracy and reliability of protocol identification. The dynamic protocol mapping table configured in the protocol conversion unit enables flexible protocol conversion, allowing for dynamic adjustment of the conversion strategy according to actual needs. The encryption chip uses AES encryption to ensure the security of communication data, preventing data leakage and malicious attacks, and improving the system's information security level. The temperature acquisition module monitors the processor's operating temperature in real time and provides feedback, enabling the system to automatically adjust its operating status according to temperature changes, effectively preventing overheating damage and ensuring stable operation and service life of the equipment under various operating conditions.

[0016] Optionally, a prompting module is also included, which includes an indicator light and a buzzer, both of which are signal-connected to the control module.

[0017] By adopting the above technical solutions, the indicator lights can display the working status of the charging gun, the progress of protocol conversion, and the status of the charging process in real time through different colors or flashing modes, so that operators can clearly grasp the operation of the equipment; the buzzer provides a sound prompt function, and emits corresponding sound signals when the protocol conversion is completed, charging begins, charging ends, or when an abnormal situation occurs, so as to ensure that operators can obtain status feedback in a timely manner.

[0018] Optionally, the indicator light is an LED light structure, and the buzzer is a piezoelectric buzzer.

[0019] By adopting the above technical solution, using LED light structures as indicator lights and piezoelectric buzzers, the performance and reliability of the prompting module are improved.

[0020] Optionally, the indicator lights are multiple parallel indicator light strips arranged on the upper side of the handle.

[0021] By adopting the above technical solution, the indicator lights are designed as multiple parallel indicator light strips set on the upper side of the handle, which realizes a more intuitive and richer status display function.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. This application utilizes a built-in control module to achieve real-time conversion between charging pile protocols and vehicle charging protocols, and is equipped with a heat dissipation structure located around the control module, including a heat sink fixed to the surface of the processor unit and heat conduction channels; the heat conduction channels include heat conduction pipes and heat conduction grooves, one end of the heat conduction pipe is in thermal contact with the heat sink, and the other end extends to the inner surface of the outer shell, and the heat conduction grooves are distributed along the inner wall of the outer shell; a built-in communication antenna is electrically connected to the control module, supporting 4G communication; a cable interface is provided at the rear of the outer shell, which is electrically connected to the control module via a cable, and then connected to the main body of the charging pile; cross-protocol charging compatibility is achieved, a single charging gun can be adapted to multiple standard vehicles, improving the utilization rate of charging infrastructure and user experience, while the heat dissipation structure ensures the stable and reliable operation of the system under complex working conditions; 2. This application provides multiple parallel heat dissipation ridges on the surface of the heat sink, which significantly increases the effective heat dissipation area of ​​the heat sink and improves the contact area with air, thereby greatly improving the heat dissipation efficiency; 3. This application forms a continuous and efficient heat conduction path by designing the heat conduction channel as a U-shaped groove structure set on the inner wall of the charging gun housing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the smart charging gun according to an embodiment of this application; Figure 2 This is a schematic diagram of the core architecture of the smart charging gun according to an embodiment of this application; Figure 3 This is a schematic diagram of the heat dissipation structure in the smart charging gun according to an embodiment of this application.

[0024] Explanation of reference numerals in the attached figures: 1. Charging gun shell; 11. Gun body; 111. Identification patch area; 12. Handle; 121. Finger groove; 122. Anti-slip structure; 2. Charging connector; 3. Control module; 4. Heat dissipation structure; 41. Heat sink; 411. Heat dissipation ridge; 42. Heat conduction channel; 421. Heat conduction pipe; 422. Heat conduction channel; 7. Indicator light; 71. Indicator light strip. Detailed Implementation

[0025] The terminology used in the following embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to include the plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this application refers to any or all possible combinations including one or more of the listed items.

[0026] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0027] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0028] Firstly, this application provides a smart charging gun with protocol conversion function, referring to... Figure 1 , Figure 2 and Figure 3 It includes a charging gun housing 1, a charging connector 2, a control module 3, a heat dissipation structure 4, a communication antenna (not shown in the figure), and a cable interface (not shown in the figure).

[0029] The charging gun housing 1 is made of high-strength engineering plastic, possessing excellent insulation properties and mechanical strength, providing structural support and environmental protection for the entire charging gun system. The charging connector 2 is located at the front end of the charging gun housing 1, employing a plug-in structure design that conforms to international standards, enabling reliable connection with different types of electric vehicle charging ports.

[0030] The control module 3, built into the charging gun housing 1, is the core component of the entire system. The control module 3 includes a processor unit and a storage unit. The processor unit adopts a high-performance MCU architecture and incorporates key algorithm modules such as a protocol conversion algorithm and a CP adaptive algorithm. The protocol conversion algorithm supports protocol adaptation between multiple standards, including the ISO 15118 international charging communication protocol and the DIN 70121 German charging protocol, and is specifically used for real-time conversion between charging pile protocols and vehicle charging protocols. The CP adaptive algorithm can dynamically adjust charging control parameters to optimize charging efficiency and safety. The processor unit also integrates network communication functions, charging control management functions, and fault analysis and diagnosis functions, enabling real-time monitoring and handling of abnormal states.

[0031] The storage unit contains a complete parameter library and communication specifications for various mainstream charging protocol standards, including Chinese national standard GB / T, European CCS, American CHAdeMO, and Japanese CHAdeMO, providing data support for protocol conversion algorithms. Control module 3 also includes a PLC module, based on power line communication technology, to achieve bidirectional transmission of control signals and data during charging, compatible with national standard GB / T and internationally used PLC protocols. Control module 3 establishes an electrical connection with charging connector 2 via internal wires, ensuring the stability and reliability of signal transmission.

[0032] Reference Figure 3 , Figure 3This is an internal structural diagram of the charging gun. The heat dissipation structure 4 is located around the control module 3 and includes a heat sink 41 and a heat conduction channel 42. The heat sink 41 is made of aluminum alloy and is directly fixed to the surface of the processor unit, ensuring good thermal contact through thermal grease. The heat conduction channel 42 includes a heat pipe 421 and a heat conduction channel 422. The heat pipe 421 is made of copper, with one end in thermal contact with the heat sink 41 and the other end extending to the inner surface of the charging gun housing 1, where it is located in the heat conduction channel 422, establishing an effective heat conduction path. The heat conduction channel 422 extends along the inner wall of the charging gun housing 1, effectively reducing the system operating temperature.

[0033] The communication antenna is built into the charging gun housing 1 and is electrically connected to the control module 3 via an RF cable. It supports 4G communication and can realize functions such as remote monitoring, status reporting and firmware upgrade.

[0034] The cable interface is located at the rear end of the charging gun housing 1, employing an industrial-grade connector design with an IP65 protection rating. The cable interface is electrically connected to the control module 3 via a dedicated cable, used to connect to the charging pile body and transmit power signals and control commands.

[0035] The working principle of this embodiment is as follows: When the electric vehicle connects to the charging gun, the control module 3 first receives the protocol identification signal sent by the vehicle through the charging connector 2. The processor unit identifies the charging protocol type used by the vehicle based on the characteristics of the received signal. Subsequently, the processor unit retrieves the corresponding protocol parameters from the storage unit, executes the protocol conversion algorithm, and converts the communication protocol of the charging pile into a protocol format that the vehicle can recognize, thereby realizing effective communication between the charging pile and the electric vehicle. During the protocol conversion process, the heat dissipation structure 4 continuously operates to effectively dissipate the heat generated by the processor operation, ensuring stable system operation. The communication antenna sends charging status and protocol conversion information to the background management system in real time, facilitating remote monitoring and management.

[0036] In one embodiment, refer to Figure 3 The heat sink 41 has multiple parallel heat dissipation ridges 411 on its surface. These ridges are made of the same aluminum alloy as the heat sink 41 and are formed directly on the surface of the heat sink through machining. The multiple parallel heat dissipation ridges 411 significantly increase the effective heat dissipation area of ​​the heat sink, improve the contact area with air, and form a regular heat dissipation channel, which is beneficial for airflow and heat conduction. The heat conduction channel 422 is a U-shaped groove structure located on the inner wall of the charging gun housing 1, spirally distributed along the inner wall to form a continuous heat conduction path. The U-shaped groove structure increases the contact area between the heat conduction channel and the inner wall of the housing, improving heat conduction efficiency and allowing heat to be evenly distributed along the arc-shaped path of the groove, avoiding localized overheating.

[0037] Reference Figure 1The charging gun housing 1 includes a gun body 11 and a handle 12 located at the end of the gun body 11 away from the charging connector 2. The handle 12 has finger grooves 121 and an anti-slip structure 122. The finger grooves 121 are recessed grooves designed ergonomically to provide a comfortable grip for the operator. The anti-slip structure 122 consists of raised textures on the side of the handle 12, increasing friction during gripping and ensuring a stable grip in wet or oily environments. The surface of the gun body 11 has an identification patch area 111 for attaching identification labels. The surface of the identification patch area is specially treated to enhance adhesion. The identification patch area 111 facilitates the attachment of management labels such as protocol conversion function indicators, supported charging standard types, and device serial numbers.

[0038] Reference Figure 2 The control module 3 also includes a PLC module, a protocol parsing circuit, a protocol conversion unit, an encryption chip, a temperature acquisition module, a PMU power management unit, and an AI module.

[0039] The PLC module, located at the top of the control architecture, utilizes power line communication technology to enable bidirectional transmission of control signals and data during charging. It is compatible with national standard GB / T and internationally recognized PLC protocols, connecting to national standard charging piles and European, American, and Japanese standard new energy vehicles via bidirectional communication. The protocol parsing circuit, a core component of the MCU module, is electrically connected to the processor unit and uses a dedicated protocol parsing chip to parse received charging protocol messages. The protocol conversion unit, integrated within the processor unit, incorporates a built-in protocol conversion algorithm, supporting ISO 15118 international charging communication protocol, DIN 70121 German charging protocol, and other standards, achieving protocol adaptation between different standards. The processor unit also integrates a CP adaptive algorithm to dynamically adjust charging control parameters such as current and voltage, optimizing charging efficiency and safety. It also possesses basic functions such as network communication, charging control management, and fault analysis and diagnosis. The encryption chip communicates bidirectionally with the processor unit, employing hardware encryption (AES-256) to encrypt communication data, ensuring communication security. The temperature acquisition module includes multiple temperature sensors distributed around the processor unit, monitoring the temperature of critical components such as the charging gun cable and battery interface in real time to prevent overheating risks and feeding the temperature data back to the processor unit. The power management unit (PMU) is responsible for power distribution during battery charging and discharging, voltage and current monitoring, and overcharge and over-discharge protection.

[0040] Specifically, the entire control module is embedded in the charging gun cable. It communicates with the battery and the external vehicle through a two-way connection, and locally and intelligently processes real-time data such as current fluctuations and temperature anomalies during the charging process. Combined with AI algorithms, it optimizes the charging strategy, realizes dynamic power distribution, and improves charging efficiency and safety.

[0041] Furthermore, refer to Figure 1The system also includes a notification module, which comprises indicator lights 7 and a buzzer (not shown in the figure). Both indicator lights 7 and the buzzer are connected to the control module 3. Indicator lights 7 display the charging gun's working status, protocol conversion progress, and other information through different colors and flashing patterns. The buzzer emits corresponding sound signals when protocol conversion is complete, charging begins, charging ends, or when an abnormality occurs. Indicator lights 7 are LED lights, and the buzzer is a piezoelectric buzzer. Indicator lights 7 are multiple parallel indicator light strips 71 located on the upper side of the handle 12. Indicator light strips 71 include four parallel LED strips. Multiple indicator light strips 71 can simultaneously display various information such as charging progress, protocol conversion status, and temperature status. Operators can directly observe the status display while holding the charging gun, improving operational convenience and safety.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A smart charging gun with protocol conversion function, characterized in that, include: Charging gun casing (1); The charging connector (2) is located at the front end of the charging gun housing (1) and has a standardized plug-in structure; The control module (3) is built into the charging gun housing (1) and includes a processor unit and a storage unit. The processor unit is used to perform real-time conversion between the charging pile protocol and the vehicle charging protocol. The storage unit stores multiple charging protocol standards. The control module (3) is electrically connected to the charging connector (2) through internal wires. The heat dissipation structure (4) is disposed around the control module (3) and includes a heat sink (41) and a heat conduction channel (42). The heat sink (41) is fixed on the surface of the processor unit and forms thermal contact through thermal grease. The surface of the heat sink (41) is provided with multiple parallel heat dissipation ridges (411). The heat conduction channel (42) includes a heat conduction pipe (421) and a heat conduction channel (422). One end of the heat conduction pipe (421) is in thermal contact with the heat sink (41), and the other end extends to the inner surface of the charging gun housing (1) and is disposed in the heat conduction channel (422). The heat conduction channel (422) extends along the inner wall of the charging gun housing (1) and is a U-shaped groove structure disposed on the inner wall of the charging gun housing (1). A communication antenna is built into the charging gun housing (1) and electrically connected to the control module (3) for 4G communication connection; The cable interface is located at the rear end of the charging gun housing (1) and is electrically connected to the control module (3) via a cable for connecting the charging pile body; The control module (3) also includes: A protocol parsing circuit, electrically connected to the processor unit, is used to parse the received charging protocol messages; The protocol conversion unit is integrated within the processor unit and is configured with a dynamic protocol mapping table; The encryption chip communicates bidirectionally with the processor unit and is used to perform AES encryption processing on the communication data; A temperature acquisition module is used to monitor the operating temperature of the processor unit in real time and feed it back to the processor unit.

2. The intelligent charging gun with protocol conversion function according to claim 1, characterized in that, The charging gun housing (1) includes a gun body (11) and a handle (12) disposed at one end of the gun body (11) away from the charging connector (2). The handle (12) is provided with a finger groove (121) and an anti-slip structure (122). The finger groove (121) is a recessed groove structure, and the anti-slip structure (122) is a raised texture disposed on the side of the handle (12).

3. The intelligent charging gun with protocol conversion function according to claim 2, characterized in that, The gun body (11) has an identification patch area (111) on its surface for attaching identification labels.

4. The intelligent charging gun with protocol conversion function according to claim 3, characterized in that, It also includes a prompting module, which includes an indicator light (7) and a buzzer, both of which are signal-connected to the control module (3).

5. The intelligent charging gun with protocol conversion function according to claim 4, characterized in that, The indicator light (7) is an LED light structure, and the buzzer is a piezoelectric buzzer.

6. The intelligent charging gun with protocol conversion function according to claim 5, characterized in that, The indicator lights (7) are multiple parallel indicator light strips (71) arranged on the upper side of the handle (12).

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