QC/T 1204.2-2024 PDF English
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| QC/T 1204.2-2024 | English | 215 |
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Compatibility of on-board battery swap system for battery electric passenger vehicles - Part 2: Battery swap cooling interface
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Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: QC/T 1204.2-2024
QC/T 1204.2-2024: Compatibility of on-board battery swap system for battery electric passenger vehicles - Part 2: Battery swap cooling interface
---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/QCT1204.2-2024
QC
AUTOMOTIVE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040
CCS T 36
Compatibility of On-board Battery Swap System for Battery
Electric Passenger Vehicles - Part 2: Battery Swap Cooling
Interface
ISSUED ON: JULY 19, 2024
IMPLEMENTED ON: JANUARY 1, 2025
Issued by: Ministry of Industry and Information Technology of the People’s
Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 4
1 Scope ... 6
2 Normative References ... 6
3 Terms and Definitions ... 6
4 Interchangeability Requirements for Cooling Interface ... 7
5 Test Methods for the Interchangeability of Cooling Interface ... 9
Appendix A (informative) Cross-section Diagram and Matching Status Diagram of
Cooling Interface ... 12
Bibliography ... 16
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives
for Standardization - Part 1: Rules for the Structure and Drafting of Standardizing Documents.
This document is Part 2 of QC/T 1204 Compatibility of On-board Battery Swap System for
Battery Electric Passenger Vehicles. QC/T 1204 has issued the following parts:
---Part 1: Battery Swap Electrical Interface;
---Part 2: Battery Swap Cooling Interface;
---Part 3: Battery Swap Mechanism;
---Part 4: Battery Swap Pack;
---Part 5: Communication between Electric Vehicle and Battery Pack.
Please be noted that certain content of this document may involve patents. The institution
issuing this document does not undertake the responsibility of identifying these patents.
This document was proposed by and shall be under the jurisdiction of National Technical
Committee 114 on Auto of Standardization Administration of China (SAC/TC 114).
The drafting organizations of this document: NIO Technology (Anhui) Co., Ltd.; China
Automotive Technology and Research Center Co., Ltd.; Zhejiang Jizhi New Energy
Automobile Technology Co., Ltd.; Ningde Contemporary Amperex Technology Co., Ltd.
(CATL); SAIC Motor R&D Innovation Headquarters; Shanghai ENERGIEX Technology Co.,
Ltd.; CALT Co., Ltd.; New Energy Automotive Inspection Center (Tianjin) Co., Ltd. of China
Automotive Technology & Research Center Co., Ltd.; BAIC BJEV Co., Ltd.; Shanghai
CHINAUST Automotive Plastic Products Co., Ltd.; Ningbo DAYA Auto Parts Co., Ltd.;
Rickenite Fluid Control System (Zhenjiang) Co., Ltd.; Suzhou Recodeal Interconnect System
Co., Ltd.; AVIC JONHON Optronic Technology Co., Ltd.; Beijing Shengneng Energy
Technology Co., Ltd.; Aulton New Energy Automotive Technology Co., Ltd.; Hefei Gotion
High-tech Co., Ltd.; Shanghai Qiyuan Green Power Co., Ltd.; Hangzhou Hongtu Intelligent
Energy Technology Co., Ltd.
The main drafters of this document: Zeng Shizhe, Zheng Tianlei, Zhang Ning, Cao Dongdong,
Zhang Kai, Wu Bingli, Wang Guokang, Peng Fangyuan, Yuan Chengchao, Wang Kai, Zhang
Baoqiang, Wu Yuanhe, Zhang Jun, Gao Jianfeng, Yang Lin, Zhang Chao, Yang Guohua, Cai
Yanzhao, Li Yujun, Wang Feng, Guo Peng, Huang Chunhua, Wu Guanjun, Wang Ping, Xi
Shihong.
Compatibility of On-board Battery Swap System for Battery
Electric Passenger Vehicles - Part 2: Battery Swap Cooling
Interface
1 Scope
This document specifies the interchangeability requirements and test methods for the cooling
interface of on-board battery swap system for battery electric passenger vehicles.
This document is applicable to the cooling interface of on-board battery swap system for battery
electric passenger vehicles.
2 Normative References
The content of the following documents constitutes indispensable clauses of this document
through normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 19596 Terminology of Electric Vehicles
GB/T 30038 Road Vehicles - Degrees of Electrical Equipment Protection (IP-Code)
GB/T 32879-2016 General Requirements for Swapping Battery Pack Connector of Electric
Vehicle
GB 38031-2020 Electric Vehicles Traction Battery Safety Requirements
3 Terms and Definitions
The terms and definitions defined in GB/T 19596, and the following are applicable to this
document.
3.1 cooling connector assembly
An interface connecting the liquid cooling system of the complete vehicle and the liquid cooling
system of the battery swap pack.
NOTE: it has the function of automatically cutting off the coolant when disconnected and
automatically turning on the coolant when connected, including pack connector and
vehicle connector.
5.2 Accuracy of Test Instruments
The accuracy of the measurement instruments shall not be lower than the following
requirements:
a) Temperature measurement device: 1 C;
b) Time measurement device: 1% FS (above 1 min), 5% FS (below 1 min);
c) Flow measurement device: 0.2 L/min;
d) Pressure measurement device: 0.1% FS;
e) Mass measurement device: 0.1% FS.
5.3 Floating Capability Test
Install the cooling interface component on a special tooling that can adjust its displacement,
and respectively measure the maximum floating amount and maximum correction angle in the
X, Y and Z directions.
5.4 Air Tightness Test
Respectively carry out air tightness test on the cooling interface assembly, and pack-end and
vehicle-end parts, and choose one of the following three modes for testing:
a) Wet inspection: on the wet sealing performance test bench, pass 205 kPa compressed
air to the liquid cooling system immersed in water, and observe the bubbles in the
water for 120 s;
b) Dry inspection: on the dry sealing performance test bench, pass 205 kPa compressed
air into the liquid cooling system, inflate for 120 s, maintain pressure for 120 s, and
the test duration is 60 s;
c) Helium inspection: put the liquid cooling system into the helium inspection box, pass
205 kPa helium gas (concentration: 80%) into the liquid cooling system, maintain
pressure for 30 s, and the test duration is 60 s.
5.5 Plug-in and plug-out Force Test
In accordance with the requirements of 6.4 in GB/T 32879-2016, install the cooling interface
component of the battery pack for battery swap on an equipment that can measure pulling force
and pushing force. At a speed of 10 mm/s, perform plug-in and plug-out. After 30 cycles of
plug-in and plug-out, record the measured values of the plug-in and plug-out force.
5.6 Pressure Drop Test
5.6.1 After combining the cooling interface, connect the inlet and outlet to the flow pressure
drop machine, and the coolant temperature is 25 C.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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