Design and Optimization for a New Locomotive Power Battery Box

电池(电) 汽车工程 功率(物理) 结构工程 电池组 工程类 电气工程 量子力学 物理
作者
Sihui Dong,Jing Lv,Kang Wang,Wanjing Li,Yining Tian
出处
期刊:Sustainability [Multidisciplinary Digital Publishing Institute]
卷期号:14 (19): 12810-12810 被引量:3
标识
DOI:10.3390/su141912810
摘要

To solve the disadvantages of the low protection grade, high weight, and high cost of the existing locomotive power battery system, this study optimizes the existing scheme and introduces the design concept of two-stage protection. The purpose of the research is to improve the protection level of the battery pack to IP68, to optimize the sheet metal power battery box structure into a more lightweight frame structure, to simplify the cooling mode of the battery pack for natural air cooling, and to improve the battery protection level and maintain the heat exchange capability. In the course of the study, a design scheme with a two-stage protection function is proposed. The numerical model analyzes the self-load, transverse load, longitudinal load, mode, and fatigue, and optimizes the layout of the power tank cell. The optimized box model was physically tested and economically compared. The results show that: (1) The maximum load stress is 128.4 MPa, which is lower than 235 MPa, the ultimate stress of the box material, and the fatigue factor of the frame box structure is 3.75, which is higher than 1.0, and it is not prone to fatigue damage. (2) Under the low-temperature heating condition, the overall temperature rise of the battery pack is 4.3 °C, which is greater than 2.3 °C under the air conditioning heat dissipation scheme. Under the high-temperature charging condition, the overall temperature rise of the battery pack is 2.0 °C, and the temperature value is the same as the temperature rise under the air conditioning cooling scheme. Under the high-temperature discharge condition, the overall temperature rise of the battery pack is 3.0 °C, and the temperature value is greater than 2.1 °C under the air conditioning heat dissipation scheme. At the same time, the temperature rise under the three working conditions is less than the 15 °C stipulated in the JS175-201805 standard. The simulation results show that the natural airflow and two-stage protection structure can provide a good temperature environment for the power battery to work. (3) The optimized box prototype can effectively maintain the structural integrity of the battery cell in the box in extreme test cases, reducing the probability of battery fire caused by battery cell deformation. (4) The power battery adopts a two-stage protection design under the battery power level, which can simultaneously achieve battery protection and prevent thermal runaway, while reducing costs. The research results provide a new concept for the design of a locomotive power battery system. (5) The weight of the optimized scheme is 2020 kg, and the original scheme is 2470 kg; thus, the reduction in weight is 450 kg. Meanwhile, the volume of the optimized scheme is 1.49 m3, and the original scheme is 1.93 m3; thus, the reduction in volume is 0.44 m3.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刘摆乐发布了新的文献求助10
刚刚
在水一方应助lizzy采纳,获得10
1秒前
鸣笛应助younghippo采纳,获得30
2秒前
lilian完成签到,获得积分10
2秒前
8R60d8应助小羊采纳,获得10
3秒前
danpink完成签到,获得积分20
3秒前
坐忘道发布了新的文献求助10
3秒前
4秒前
5秒前
32完成签到,获得积分10
5秒前
蓝天应助鱿鱼坤采纳,获得10
7秒前
归途发布了新的文献求助30
7秒前
汪哈七完成签到,获得积分10
8秒前
alison完成签到 ,获得积分10
8秒前
陈皮完成签到,获得积分10
8秒前
8秒前
8秒前
萧晓发布了新的文献求助10
9秒前
充电宝应助wuweizhizhi采纳,获得10
9秒前
ding应助缥缈项链采纳,获得10
9秒前
会飞的包子完成签到,获得积分10
10秒前
10秒前
11关注了科研通微信公众号
11秒前
乐乐应助felix采纳,获得10
11秒前
11秒前
独特乘云完成签到,获得积分10
12秒前
Hello应助归途采纳,获得10
14秒前
14秒前
苏浩然发布了新的文献求助10
14秒前
15秒前
英姑应助会飞的包子采纳,获得30
15秒前
聪慧小霜应助肥仔采纳,获得20
16秒前
Liu发布了新的文献求助10
16秒前
nn完成签到,获得积分10
17秒前
17秒前
17秒前
坐忘道完成签到 ,获得积分10
18秒前
18秒前
18秒前
Binbin发布了新的文献求助10
19秒前
高分求助中
Manipulating the Mouse Embryo: A Laboratory Manual, Fourth Edition 1000
Determination of the boron concentration in diamond using optical spectroscopy 600
The Netter Collection of Medical Illustrations: Digestive System, Volume 9, Part III - Liver, Biliary Tract, and Pancreas (3rd Edition) 600
Founding Fathers The Shaping of America 500
A new house rat (Mammalia: Rodentia: Muridae) from the Andaman and Nicobar Islands 500
Writing to the Rhythm of Labor Cultural Politics of the Chinese Revolution, 1942–1976 300
On the Validity of the Independent-Particle Model and the Sum-rule Approach to the Deeply Bound States in Nuclei 220
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 物理化学 基因 催化作用 遗传学 冶金 电极 光电子学
热门帖子
关注 科研通微信公众号,转发送积分 4547686
求助须知:如何正确求助?哪些是违规求助? 3978585
关于积分的说明 12319234
捐赠科研通 3647114
什么是DOI,文献DOI怎么找? 2008560
邀请新用户注册赠送积分活动 1044062
科研通“疑难数据库(出版商)”最低求助积分说明 932684