標(biāo)準(zhǔn)編號(hào):	QC/T 1204.2-2024
中文名稱:	純電動(dòng)乘用車車載換電系統(tǒng)互換性 第2部分：換電冷卻接口
英文名稱:	Compatibility of on-board battery swap system for battery electric passenger vehicles - Part 2 : Battery swap cooling interface
中標(biāo)分類:	T36    電子、電氣設(shè)備
行業(yè)分類:	QC    汽車行業(yè)標(biāo)準(zhǔn)
ICS分類:	43.040 43.040    道路車輛裝置 43.040
發(fā)布機(jī)構(gòu):	中華人民共和國(guó)工業(yè)和信息化部
發(fā)布日期:	2024-07-05
實(shí)施日期:	2025-1-1
標(biāo)準(zhǔn)狀態(tài):	valid
翻譯語(yǔ)言:	英文
文件格式:	PDF
中文字符數(shù):	14000 字
翻譯價(jià)格(元):	980.0
交付時(shí)間:	付款后 1~3 個(gè)工作日

QC/T 1204.2-2024 Compatibility of on-board battery swap system for battery electric passenger vehicles - Part 2: Battery swap cooling interface 1 Scope This document specifies the requirements and test methods for the compatibility of the cooling interface of the on-board battery swap system for battery electric passenger vehicles. This document is applicable to the cooling interface of the on-board battery swap system for battery electric passenger vehicles. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 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 For the purposes of this document, the terms and definitions given in GB/T 19596 and the following apply. 3.1 cooling connector assembly interface connecting the liquid cooling system of the complete vehicle and that of the battery swap pack Note: It consists of the pack connector and the vehicle connector, and can automatically cut off the coolant when disconnected and automatically turn on the coolant when connected. 3.2 pack connector part of the cooling interface connected with the battery pack Note: Generally, it has guiding function and a floatable valve core inside, referred to as "pack end" for short. 3.3 vehicle connector part of the cooling interface connecting to the electric vehicle or charging rack Note: Generally, it has the feature of floating mechanisms, including the side where the valve body can be opened, and the valve core is wrapped when plugged into each other, referred to as the "vehicle end" for short. 3.4 floating mechanism mechanism in the cooling interface that can correct the matching error between the pack end and the vehicle end 4 Requirements for compatibility of cooling interface 4.1 Interface requirements 4.1.1 Critical dimensions The critical dimensions and parameters of the cooling interface shall meet those specified in Table 1. 4.1.2 Spring force It is based on the spring force value during interactions; the compatibility can be realized only after meeting those specified in Table 2. 4.1.3 Cooling medium The cooling medium shall be 50% ethylene glycol and 50% water. 4.1.4 Water inlet and outlet The water inlet and outlet of the battery pack shall be located at the right and left side of the direction of vehicle forward motion, as shown in Figure A.7. 4.1.5 Sealing method Radial seal shall be adopted for the valve core. 4.2 Interface performance requirements 4.2.1 Floating requirements The floating mechanism of the cooling interface may allow the plug and socket to be mated and separated with a certain offset error. After the floating capacity test is carried out as per 5.3, the error correction ability in X, Y and Z directions shall be within the range of -5 mm to 5 mm. See Figure A.8 for details of horizontal floating range. At the same time, the angle error correction ability shall be -1° to 1°. Note: Refer to the definition of vehicle coordinate system given in GB/T 12673 for X, Y and Z directions. 4.2.2 Air tightness After the air tightness test is completed as per 5.4, at least one of the following requirements shall be met; a) Wet test: There shall be no visible bubbles; b) Dry test: The leakage from the cooling interface shall not exceed 0.5 mL/min; c) Ammonia test: The leakage from the cooling interface shall not exceed 2×10-6 Pa·m3/s. 4.2.3 Requirements for insertion-withdrawal force After the insertion-withdrawal force test is completed as per 5.5, the insertion-withdrawal force applied on the cooling interface shall not be greater than 350 N. 4.2.4 Requirements for pressure drop The pressure drop value at room temperature after the vehicle end and the pack end is assembled shall meet those specified in Table 3.

Contents Foreword III Introduction IV 1 Scope 2 Normative references 3 Terms and definitions 4 Requirements for compatibility of cooling interface 5 Test method for compatibility of cooling interface Annex A (Informative) Sectional view and fitting status diagram of cooling interface Bibliography

純電動(dòng)乘用車車載換電系統(tǒng)互換性 第2部分：換電冷卻接口 1 范圍 本文件規(guī)定了純電動(dòng)乘用車車載換電系統(tǒng)冷卻接口的互換性要求和試驗(yàn)方法。 本文件適用于純電動(dòng)乘用車車載換電系統(tǒng)冷卻接口。 2 規(guī)范性引用文件 下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文 件，僅該日期對(duì)應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本(包括所有的修改單)適用于 本文件。 GB/T 19596 電動(dòng)汽車術(shù)語(yǔ) GB/T 30038 道路車輛電氣電子設(shè)備防護(hù)等級(jí)(IP 代碼) GB/T 32879-2016 電動(dòng)汽車更換用電池箱連接器通用技術(shù)要求 GB 38031-2020 電動(dòng)汽車用動(dòng)力蓄電池安全要求 3 術(shù)語(yǔ)和定義 GB/T 19596界定的以及下列術(shù)語(yǔ)和定義適用于本文件。 3.1 冷卻接口總成 cooling connector assembly 連接整車液冷系統(tǒng)與換電電池包液冷系統(tǒng)的接口。 注：具有斷開時(shí)冷卻液自動(dòng)截止及連接時(shí)冷卻液自動(dòng)導(dǎo)通功能，包含電池包端連接器和車身端連接器。 3.2 電池包端連接器 pack connector 冷卻接口中，與電池包連接在一起的部分。 注：一般含有導(dǎo)向特征且內(nèi)部閥芯可浮動(dòng)，簡(jiǎn)稱“包端”。 3.3 車身端連接器 vehicle connector 冷卻接口中，與電動(dòng)汽車或充電架連接在一起的部分。 注：一般包含浮動(dòng)機(jī)構(gòu)特征，包含可開啟閥體，且在相互插接時(shí)閥芯被包裹的那一側(cè)，簡(jiǎn)稱“車端”。 3.4 浮動(dòng)機(jī)構(gòu) floating mechanism 冷卻接口中可以修正包端與車端配合誤差的機(jī)構(gòu)。 4 冷卻接口互換性要求 4.1 界面要求 4.1.1 關(guān)鍵尺寸 對(duì)于冷卻接口的關(guān)鍵尺寸及參數(shù)按表1的規(guī)定進(jìn)行。 4.1.2 彈簧力 基于相互作用中的彈簧力值，實(shí)現(xiàn)互換應(yīng)滿足表2中相關(guān)參數(shù)的要求。 4.1.3 冷卻介質(zhì) 冷卻介質(zhì)應(yīng)為50%的乙二醇和50%的水。 4.1.4 進(jìn)出水口 車輛前進(jìn)方向右側(cè)應(yīng)為電池包進(jìn)水口，左側(cè)應(yīng)為出水口，詳見圖A.7。 4.1.5 密封方式 閥芯的密封方式應(yīng)為徑向密封。 4.2 界面性能要求 4.2.1 浮動(dòng)要求 冷卻接口的浮動(dòng)機(jī)構(gòu)可以允許插頭插座帶有一定偏移誤差進(jìn)行配合和分離。按照5.3進(jìn)行浮動(dòng)能力試驗(yàn)后，X，Y，Z方向誤差糾正能力應(yīng)在 -5mm ~ 5mm 范圍內(nèi)；水平浮動(dòng)范圍詳見圖A.8; 同時(shí)角度誤差糾正能力應(yīng)在-1°~1°。 注：X，Y，Z 方向參考GB/T 12673中整車坐標(biāo)系定義。 4.2.2 氣密性要求 按照5.4進(jìn)行氣密性試驗(yàn)后，應(yīng)滿足以下要求之一； a) 濕檢：應(yīng)無肉眼可見的氣泡； b) 干檢：冷卻接口泄漏量應(yīng)不超過0.5 mL/min; c) 氨檢：冷卻接口泄漏量應(yīng)不超過2×10-6 Pa·m3/s。 4.2.3 插拔力要求 按照5.5進(jìn)行插拔力試驗(yàn)后，冷卻接口插入插拔力應(yīng)不大于350 N。 4.2.4 壓降要求 車端和包端組合后常溫下的壓力壓降值應(yīng)滿足表3。