Types and Standards of Electric Car Charging Sockets

The popularization of electric vehicles (EV) is rapidly changing the way we travel, and electric car charging sockets have become the core technology in this transformation. Electric car charging sockets are not only an essential interface connecting the vehicle and the charging facility but also ensure the safe and efficient transmission of electricity. This article provides an in-depth analysis of the types and standards of electric car charging sockets, along with practical advice on purchasing and maintenance.

Design and Standards of On-board Electric Car Charging Sockets

Theon-board electric car charging socket is the bridge between the electric vehicle and the charging facility. It is usually located at the front, rear, or side fender of the vehicle for ease of operation during charging. The design of theon-board electric car charging socket needs to comply with specific charging standards to ensure compatibility with the charging gun on the charging pile, thereby achieving efficient charging.

Theon-board electric car charging socket not only needs to provide stable electrical connections but also should have safety protection mechanisms, such as electronic locks and temperature sensors, to ensure the safety of the charging process. Additionally, the on-board charging socket typically has built-in communication interfaces for data exchange with the charging pile, regulating charging current and voltage to ensure efficient and safe charging.

Charging Pile Electric Car Charging Sockets and Their Role

The electric car charging socket on the charging pile is the output end of the charging facility. Its role is to transfer electrical energy to the on-board charging socket of the electric vehicle. The electric car charging socket on the charging pile must be compatible with the on-board charging socket to ensure a smooth connection between the two.

Charging pile electric car charging sockets come in various types, supporting different charging standards and power levels. Whether it is a home wall-mounted charging pile or a public column-mounted charging pile, the internal sockets need to have electrical connections, safety protection, and communication functions. Through the charging control unit and power conversion module, the charging pile can safely and stably deliver AC or DC power to the vehicle's battery system.

Main Types and Standards of Electric Car Charging Sockets

AC Charging Sockets

Type 1 (J1772)

Mainly used in North American and Japanese markets, supporting single-phase or three-phase AC charging with a maximum rated current of32A. This type of electric car charging socket is suitable for home and public slow charging scenarios, designed to be simple and easy to popularize.

Type 2 (IEC 62196-2)

Widely used in Europe and China, supporting single-phase and three-phase AC charging, with a maximum current of63A. This type of electric car charging socket is usually equipped with an electronic locking device to ensure a stable connection between the plug and the socket during charging, improving charging safety and efficiency.

DC Charging Sockets

CHAdeMO

A standard led by Japan, supporting fast DC charging with a maximum current of200A. This type of electric car charging socket is suitable for fast charging stations, providing a large amount of electrical energy to the vehicle in a short period.

CCS (Combined Charging System)

Includes CCS1 (American version) and CCS2 (European version), integrating AC slow charging and DC fast charging functions. CCS sockets are usually equipped with additional DC charging connectors, supporting up to500A charging current, greatly improving the charging speed.

GB/T (China National Standard)

Unique to China, the DC charging standard is divided into DC charging guns and charging sockets. China's electric car charging sockets typically have a nine-hole design, supporting high-power DC fast charging, providing users with a convenient charging experience.