GB/T 20234.3-2023 PDF EnglishUS$260.00 · In stock · Download in 9 seconds
GB/T 20234.3-2023: Connection set for conductive charging of electric vehicles - Part 3: DC charging coupler Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 20234.3: Historical versions
Similar standardsGB/T 20234.3-2023: Connection set for conductive charging of electric vehicles - Part 3: DC charging coupler---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT20234.3-2023 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.040.99 CCS T 35 Replacing GB/T 20234.3-2015 Connection Set for Conductive Charging of Electric Vehicles – Part 3.DC Charging Coupler Issued on: SEPTEMBER 7, 2023 Implemented on: SEPTEMBER 7, 2023 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 Introduction... 5 1 Scope... 6 2 Normative References... 6 3 Terms and Definitions... 6 4 General Requirements... 6 5 Ratings... 7 6 Connection Functions... 7 6.1 Connection interface and contact arrangement... 7 6.2 Contact parameters and functions... 8 6.3 Contact connection interface... 9 6.4 Locking device... 10 7 Structural Dimensions of Charging Coupler... 10 7.1 General... 10 7.2 Vehicle plug... 10 7.3 Vehicle socket... 12 8 Installation Examples of the Vehicle Socket... 13 8.1 Front installation method... 13 8.2 Rear installation method... 14 8.3 Integrated structure... 15 9 Space Dimension of the Vehicle Plug... 16 10 Structural Example of Locking Device... 17ForewordThis Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents. This Document was Part 3 of GB/T 20234 Connection Set for Conductive Charging of Electric Vehicles. GB/T 20234 consists of the following parts. --- Part 1.General requirements; --- Part 2.AC charging coupler; --- Part 3.DC charging coupler. This Document replaced GB/T 20234.3-2015 Connection Set for Conductive Charing of Electric Vehicles – Part 3.DC Charging Coupler. Compared with GB/T 20234.3-2015, the major technical changes of this Document are as follows besides the structural adjustments and editorial modifications. a) Change the rated voltage and rated current of the DC charging interface (see Clause 1, Tables 1 and 2 of this Edition; Clause 1, Tables 1 and 2 of the 2015 Edition); b) Add requirements for locking devices (see 6.4 of this Edition); c) Change the height dimensions of the vehicle socket CC2 plug bush (see 7.3 of this Edition; Appendix A of the 2015 Edition); d) Added structural examples of locking devices (see Clause 10 of this Edition). Please note some contents of this Document may involve patents. The issuing agency of this Document shall not assume the responsibility to identify these patents. This Document was proposed by the Ministry of Industry and Information Technology of the People’s Republic of China. This Document shall be under the jurisdiction of National Technical Committee of Auto Standardization (SAC/TC 114). Drafting organizations of this Document. BYD Auto Industry Company Limited; China Automotive Technology and Research Center Co., Ltd.; China Association of Automobile Manufacturers; NIO Technology (Anhui) Co., Ltd.; Guangzhou Greater Bay Technology Co., Ltd.; Guangzhou Xiaopeng Motors Technology Co., Ltd.; China Automotive Research Institute New Energy Motor Inspection Center (Tianjin) Co., Ltd.; China FAW Co., Ltd.; GAC Ai’an New Energy Automobile Co., Ltd.; Dongfeng Motor Group Co., Ltd.; Contemporary Amperex Technology Co., Ltd.; Chongqing Changan New Energy Vehicle Co., Ltd.; Xi’an Linchr New Energy Technology Co., Ltd.; Shenzhen Busbar SCI-Tech Development Co., Ltd.; Beiqi FotonIntroductionConductive charging is the basic way to realize electric energy supply for electric vehicles. GB/T 20234 aims to standardize the technical requirements and test methods of charging connection devices and unify the interface type and structural size of charging interfaces, thereby realizing the interconnection between electric vehicles and charging infrastructure. GB/T 20234 is planned to consist of the following 4 parts. --- Part 1.General requirements. It aims to establish the general performance requirements for charging connection devices and ensure the functionality and reliability of the product. --- Part 2.AC charging coupler. It aims to establish the contact definition, contact connection interface, structural dimensions, etc. of the AC charging coupler to achieve the interchangeability of the AC charging coupler. --- Part 3.DC charging coupler. It aims to establish the contact definition, contact connection interface, structural dimensions, etc. of the DC charging coupler (including high-power charging) to achieve the interchangeability of the DC charging coupler. --- Part 4.High-power DC charging coupler. It aims to establish the composition, coupler function and layout, cable requirements, thermal management system, technical requirements, test methods, etc. of the DC charging connection device, as well as the definition, technical requirements, test methods, inspection rules, etc. of the adapter. In order to cover more charging scenarios, it is necessary to expand the rating of the DC charging coupler to meet the use requirements of high-power DC charging and low-power DC charging, respectively. As the physical connection interface between electric vehicles and charging infrastructure, the charging coupler needs to maintain compatibility and interchangeability with already produced electric vehicles and built charging equipment. Connection Set for Conductive Charging of Electric Vehicles – Part 3.DC Charging Coupler1 ScopeThis Document specifies the general requirements, ratings, connection interface, contact arrangement, contact function, model, structural dimensions and other requirements for the DC charging coupler for conductive charging of electric vehicles. This Document applies to DC charging couplers with rated voltage not exceeding DC 1500V and rated current (continuous maximum operating current) not exceeding 800 A.2 Normative ReferencesThe provisions in following documents become the essential provisions of this Document through reference in this Document. For the dated documents, only the versions with the dates indicated are applicable to this Document; for the undated documents, only the latest version (including all the amendments) is applicable to this Document. GB/T 19596 Terminology of electric vehicles GB/T 20234.1 Connection set for conductive charging of electric vehicles - Part 1.General requirements GB/T 29317 Terminology of electric vehicle charging/battery swap infrastructure3 Terms and DefinitionsFor the purposes of this Document, the terms and definitions given in GB/T 19596, GB/T 20234.1 and GB/T 29317 apply.4 General Requirements4.1 The technical requirements and test methods of the DC charging coupler shall comply with the provisions of GB/T 20234.1. 4.2 The control guidance circuit and control principle applicable to the DC charging coupler shall meet the requirements of relevant standards or documents. 4.3 The communication protocol applicable to the DC charging coupler shall meet the requirements of relevant standards or documents.5 RatingsThe ratings of the DC charging coupler shall comply with the provisions of Table 1.6 Connection Functions6.1 Connection interface and contact arrangement The connection interface and contact arrangement of the vehicle plug and vehicle socket shall comply with the provisions of Figures 1 and 2, respectively. 6.2 Contact parameters and functions The vehicle plug and vehicle socket shall contain 9 contacts respectively, and the electrical parameter values and function definitions of the contacts shall comply with the provisions of Table 2. 6.3 Contact connection interface 6.3.1 The sequence of contact coupling when the vehicle plug is inserted into the vehicle socket is. protective earthing (3), charging connection confirmation CC2 (7), DC power DC± (1 and 2), low-voltage auxiliary power A± (8 and 9), charging communication S± (4 and 5), charging connection confirmation CC1 (6). When the vehicle plug is pulled out from the vehicle socket, the sequence of contact disengagement is reverse to that during insertion. 6.3.2 The schematic diagram of the contact connection interface of the DC charging coupler is shown in Figure 3. Figure 3 -- Schematic Diagram of Contact Connection Interface 6.4 Locking device 6.4.1 The DC charging coupler shall have a mechanical locking device. The mechanical locking device shall be able to prevent accidental disconnection of the charging coupler during normal working conditions. The vehicle plug shall be equipped with a mechanical locking rod, mechanical lock head, pin and other mechanisms; and the vehicle socket shall be equipped with a mechanical locking notch that can match the mechanical lock head. 6.4.2 The vehicle plug should have an electronic locking device, and the electronic locking device should be able to lock and unlock the movement of the mechanical locking rod. The vehicle plug should have an emergency unlocking function, and should be able to unlock the mechanical locking lever when the electronic locking device is powered off or fails. 6.4.3 If the vehicle plug is used in an automatic charging connection device that cannot be directly plugged and unplugged manually, the vehicle plug does not need to have a locking device. The function of maintaining the charging interface during the power transmission process and preventing plugging and unplugging under load can be provided by the charging automatic connection device.7 Structural Dimensions of Charging Coupler7.1 General The structural dimension of charging coupler products shall not exceed the scope specified in 7.2 and 7.3. 7.2 Vehicle plug The structural dimension of the vehicle plug shall comply with the provisions in Figure 4. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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