Connection device for conductive charging of electric vehicles

Test standard: GB/T 20234-2023

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GB/T 20234-2023 is a series of national standards for conductive charging connection devices for electric vehicles. These standards specify the technical requirements, test methods and inspection rules for electric vehicle charging connection devices. The following are some key information about GB/T 20234-2023 detected by Ankejie:

1. GB/T 20234-2023 Release and Implementation

Date: September 7, 2023

implementation time: implementation starts on the day of release

2. GB/T 20234-2023 Standard Content Overview

The GB/T 20234-2023 standard series consists of multiple parts, each of which is aimed at different charging interfaces and connecting devices. Among them, the more important is Part 1: General Requirements, which specifies the basic technical requirements, test methods and inspection rules for the connection device for conductive charging of electric vehicles.

3. main technical changes (compared to the 2015 version)

to change the rated voltage/current: the rated voltage of the DC link is changed from the original maximum DC 1000V to DC 1500V.
current rating changed from maximum DC 400A to DC 1000A.
added terms and definitions: Simplified charging connection diagram.
adds the cable assembly terminology and the cable device description is more detailed.
Terms and definitions of locking device, rated current, thermal management device of liquid cooling system, gauge, etc. are added to the
.
: the protection level information shall be clearly marked on the connection device, and the protection level of the terminal and end cavity in the new plug shall be IPX6.
increase the test requirements for contact and terminal resistance to overheating, including high and low temperature resistance test, alternating damp heat test, etc.
The
adds the requirements for the nominal cross-sectional area of the non-earthing conductor and the protective earthing conductor.
increase the thermal management system and liquid medium cooling device related requirements and tests.
increase the temperature monitoring function and the test requirements of the monitoring function (including liquid cooling).
subdivides the mechanical strength and increases the requirements for components with liquid cooling media.
verification of anti-electric shock protection and integrity confirmation of liquid cooling device after rolling test of newly added vehicles.
Other changes
the
: the electronic locking device shall be installed when the rated current of the AC charging interface is specified> 16A, and the tolerance and service life requirements of the electronic lock shall be added.
to delete the breaking capacity requirements of the DC charging interface, and the number of unified segmented cycles is 3.
increase the specific location and parameter requirements of the measuring point for the temperature rise test.
clear clearance/creepage distance control pilot and signal circuit requirements.

4. the impact and application

of GB/T 20234-2023 The implementation of GB/T 20234-2023 is of great significance to the construction of electric vehicle charging infrastructure and the development of electric vehicle industry. It standardizes the technical requirements of the charging connection device, unifies the interface type and structural size of the charging interface, and promotes the interconnection of electric vehicles and charging infrastructure. At the same time, the new standard puts forward more stringent requirements on the charging gun in terms of safety, durability and reliability, which is conducive to improving the safety and user experience of the charging process of electric vehicles.