1. Overview of new energy AC charging gun

The new energy AC charging gun is a device used to convert AC power to DC power and provide charging services for electric vehicles through the charging interface. It is usually composed of a charging gun body, a cable, a plug, a control unit and other parts. During the charging process, the alternating current is connected to the charging interface of the electric vehicle through the charging gun, and then the alternating current is transmitted to the battery of the electric vehicle through the charging interface. In this process, the role of the charging gun is to convert alternating current into direct current, because the battery of an electric car can only accept direct current.

As a low-carbon and environmentally friendly mode of travel, new energy vehicles are gradually becoming the mainstream of the future transportation field. The charging facilities of new energy vehicles, as an important infrastructure to support their operation, their technological development and improvement are crucial to the popularization and promotion of new energy vehicles. Among them, the new energy AC charging gun is a key device connecting charging piles and electric vehicles, and its design, performance and ease of use are of great significance to improve the charging experience and safety of new energy vehicles.

As an important supporting facility, charging facilities have also been widely concerned and applied. In the charging process of new energy vehicles, the AC charging gun acts as a bridge connecting the charging pile and the electric vehicle, and its safety and reliability are directly related to the safety and efficiency of the charging process. As a key component of the charging gun, the function and performance of the G9 microswitch have an important impact on the whole charging process.

G9 micro switch

  1. The role of G9 microswitch in new energy AC charging gun

The G9 microswitch plays an important role in power failure protection and control signal transmission in the charging gun. When the charging gun is inserted into the charging interface of the electric vehicle, the G9 microswitch is activated, sending a signal to the charging pile to start charging. At the same time, the G9 microswitch is also responsible for monitoring the connection status of the charging gun to ensure that the connection between the charging gun and the electric vehicle is stable and reliable during the charging process. Once the charging is complete or the charging gun is pulled out, the G9 microswitch will immediately cut off the power and stop the charging process to avoid damage to the electric vehicle and charging equipment.

The G9 micro switch also has the function of safety protection in the new energy AC charging gun. By monitoring the connection status of the charging gun, the G9 microswitch can effectively prevent electrical safety hazards caused by improper connection. When the charging gun is not correctly inserted into the charging interface of the electric vehicle, the G9 microswitch will not start the charging process, thereby avoiding safety accidents caused by excessive current or short circuit.

The G9 micro switch also has the function of electrical protection in the new energy AC charging gun. By precisely controlling the on-off of the current, the G9 microswitch ensures that the charging starts and stops accurately. This can not only ensure the safety of power transmission, but also avoid possible electrical failures. At the same time, the G9 micro switch can also automatically adjust the charging current and voltage according to the battery capacity and charging needs of electric vehicles to achieve a more efficient and safe charging process.

The introduction of the G9 microswitch makes the operation of the new energy AC charging gun more convenient. Through a simple plug and unplug action, users can easily insert or remove the charging gun from the charging interface of the electric vehicle. At the same time, the G9 micro switch can also realize the automatic identification and matching between the charging gun and the charging pile, without requiring complex Settings and operations by the user.

The G9 micro switch can also achieve seamless docking with other control systems in the new energy AC charging gun. Through the connection and communication with the charging management system, vehicle control system and other devices, the G9 micro switch can achieve a higher level of functional integration and intelligent control. For example, when the electric vehicle’s power is about to run out, the G9 microswitch can automatically trigger the charging function of the charging pile to provide timely charging services for electric vehicles.

  1. Technical parameters and performance requirements of G9 microswitch

As a key component of the new energy AC charging gun, the G9 microswitch’s technical parameters and performance requirements have an important impact on the safety and efficiency of the entire charging process. The rated voltage and rated current of the G9 microswitch should be selected according to the power of the charging gun and the charging needs of the electric vehicle. In general, the rated voltage should meet the voltage requirements of charging piles and electric vehicles, and the rated current should meet the charging current requirements of electric vehicles.

The mechanical life of the G9 microswitch should meet the needs of long time and high frequency use. In general, the mechanical life of the G9 microswitch should reach tens of thousands of times or more to ensure that there will be no failure or failure during long-term use. The G9 microswitch should have a high level of protection to cope with the harsh use environment. For example, waterproof, dustproof, anti-corrosion and other properties should be guaranteed to ensure that the G9 microswitch can still work normally in rain, snow, wet and other environments.

The electrical performance of the G9 microswitch should meet the requirements of the charging gun. For example, contact resistance, disconnect capacity, voltage resistance and other performance should meet certain standards to ensure that there will be no electrical failure or safety hazards during the charging process. G9 microswitch should have good safety performance, such as overvoltage protection, overcurrent protection, short circuit protection and other functions should be guaranteed. These safety features can protect electric vehicles and charging devices from damage during charging.

The definition and classification of new energy AC charging gun

The new energy AC charging gun is a device that converts AC power to DC power and provides charging services for electric vehicles through the charging interface. It is usually composed of the charging gun body, cable, plug, control unit and other parts, and is the key equipment to realize the charging process of electric vehicles. New energy AC charging guns can be divided into many types according to different standards and uses.

(1) According to the charging method: divided into AC slow charge gun and DC fast charge gun. Ac slow charge gun is mainly suitable for slow charging at home and public places, the charging power is generally between 5-10kW; Dc fast charging gun is suitable for highway service areas, commercial parking lots and other places that need fast charging, charging power can reach tens or even hundreds of kW.

(2) Classified by interface Type: there are mainly three interface types: Type 1, Type 2 and GB/T. The Type 1 interface is mainly used in the United States and countries with close relations with Japan; The Type 2 interface is widely used in European countries; GB/T interface is China’s national standard interface.

(3) Classification by portability: divided into portable charging guns and fixed charging guns. Portable charging gun small size, easy to carry, suitable for family or business trips; The fixed charging gun is installed on the charging pile, which has higher stability and safety.

The working principle of new energy AC charging gun

The working principle of the new energy AC charging gun mainly involves power conversion, current control and safety protection. The new energy AC charging gun converts the input AC power into DC power through the internal rectifier to meet the charging needs of electric vehicle batteries. At the same time, the charging gun also needs to automatically adjust the output voltage and current according to the battery capacity and charging needs of the electric vehicle to ensure a safe and efficient charging process.

In the charging process, the new energy AC charging gun monitors the charging status and demand of the electric vehicle battery in real time through the internal charging control circuit, and adjusts the charging current and voltage according to this information. Through precise current control, the charging gun can ensure that the battery will not be overcharged or overdischarged during the charging process, while improving charging efficiency and safety.

In the design and manufacturing process of the new energy AC charging gun, safety protection measures need to be fully considered. This includes over voltage protection, over current protection, short circuit protection and other functions to ensure that there is no damage to electric vehicles and charging equipment during the charging process. At the same time, the charging gun also needs to meet the electrical safety standards of the relevant countries and regions to ensure the safety of use.

Application scenario of new energy AC charging gun

The application scenarios of new energy AC charging guns are very wide, including home charging, public charging and fast charging stations. Home charging is one of the main application scenarios of new energy AC charging guns. In the family home, the user can charge the electric vehicle by installing the home charging pile and using the AC charging gun. This charging method is low-cost, easy to operate, suitable for daily use and short trips.

Charging in public places is another important application scenario of new energy AC charging guns. In public places such as shopping malls, supermarkets, office buildings, users can find charging piles and use AC charging guns to charge electric vehicles. This charging method is convenient and fast, and can meet the charging needs of users in the process of travel.

Fast charging station is the high-end application scenario of new energy AC charging gun. In places where fast charging is needed, such as highway service areas and commercial parking lots, users can find DC fast charging piles and use DC fast charging guns to charge electric vehicles. This charging method can fully charge electric vehicles in a short period of time, improving the user’s travel efficiency and convenience.

The charging station uses a new energy AC charging gun equipped with a G9 micro switch. In actual use, the G9 microswitch can accurately monitor the connection status of the charging gun, ensuring that the connection between the charging gun and the electric vehicle is stable and reliable during the charging process. At the same time, the G9 microswitch also has overvoltage protection, overcurrent protection and other safety functions.

The development trend of new energy AC charging gun

With the continuous expansion of the new energy vehicle market and the continuous progress of technology, the new energy AC charging gun will also face more development opportunities and challenges. With the continuous development of technologies such as the Internet of Things and cloud computing, the new energy AC charging gun will gradually realize intelligence and interconnection. Through connection and communication with other smart devices, the charging gun can achieve a higher level of functional integration and intelligent control, improving charging efficiency and user experience.

With the continuous progress of electric vehicle battery technology and the increasing charging demand, the new energy AC charging gun will pay more attention to efficiency and safety. By optimizing the charging algorithm, improving the charging power and enhancing the safety protection function, the charging gun can achieve faster charging speed and higher security.

With the continuous expansion of the new energy vehicle market and the improvement of the degree of internationalization, the new energy AC charging gun will gradually achieve standardization and modularization. By developing a unified international standard and adopting a modular design, the charging gun can achieve wider compatibility and lower manufacturing costs, promoting the sustainable development of the new energy vehicle industry.