技术
- 传感器 - 红外传感器
- 传感器 - 热导传感器
适用行业
- 汽车
- 生命科学
用例
- 室外环境监测
- 根因分析与诊断
服务
- 硬件设计与工程服务
关于客户
Ballard Power Systems Inc. 是一家从事电力行业的加拿大公司。该公司设计、开发和制造零排放质子交换膜燃料电池堆。巴拉德动力系统公司正在与领先的汽车制造商合作开发比内燃机更高效、更清洁的下一代发动机。使用巴拉德燃料电池的发动机可以帮助制造商达到汽车动力所需的新的环保性能水平。该公司的 Ballard MK9 系列电池电压监测 (CVM) 系统是用于汽车燃料电池堆的电子设备,可监测电池在运行过程中产生的电压。
挑战
Ballard Power Systems Inc. 是一家设计、开发和制造零排放 PEM 燃料电池堆的加拿大公司,其 MK9 系列电池电压监测 (CVM) 系统面临着重大挑战。这些系统用于汽车燃料电池堆,监测电池在运行过程中产生的电压。然而,该公司遇到了 CVM 芯片焊点故障,这可能会向车辆控制单元发出错误的故障信号,从而可能导致燃料电池甚至整个燃料电池发动机停止运行。这个问题直接影响整个燃料电池堆的可靠性。 PCB 和灌封材料(保护 CVM 免受环境影响)的热膨胀导致变形,从而对焊点产生应力。该公司需要深入了解热循环过程中电子元件的结构负载,确定应力过大可能导致 CVM 芯片早期故障的可能区域,并确定不会对 CVM 元件施加热膨胀应力的灌封材料。
解决方案
为了应对这一挑战,Ballard Power Systems Inc. 使用 ANSYS Multiphysics 软件进行热结构耦合场分析。该分析有助于计算电路板变形对焊点造成的应力。在装配模型上识别出高应力区域和组件。该软件还用于通过称为子建模的过程来开发更精细的网格,用于单个芯片/焊点细节分析。此过程有效地帮助计算特定感兴趣区域的更准确结果。在确定焊点应力是 CVM 焊点失效的主要原因后,该公司选择了一种具有合适热膨胀系数 (CTE) 的新型灌封材料。这种新材料消除了 CVM 芯片的应力成分并避免了故障。灌封材料接近 PCB 的 CTE,消除了其他测试材料的“凸起”。
运营影响
数量效益
Case Study missing?
Start adding your own!
Register with your work email and create a new case study profile for your business.
相关案例.
Case Study
Integral Plant Maintenance
Mercedes-Benz and his partner GAZ chose Siemens to be its maintenance partner at a new engine plant in Yaroslavl, Russia. The new plant offers a capacity to manufacture diesel engines for the Russian market, for locally produced Sprinter Classic. In addition to engines for the local market, the Yaroslavl plant will also produce spare parts. Mercedes-Benz Russia and his partner needed a service partner in order to ensure the operation of these lines in a maintenance partnership arrangement. The challenges included coordinating the entire maintenance management operation, in particular inspections, corrective and predictive maintenance activities, and the optimizing spare parts management. Siemens developed a customized maintenance solution that includes all electronic and mechanical maintenance activities (Integral Plant Maintenance).
Case Study
Monitoring of Pressure Pumps in Automotive Industry
A large German/American producer of auto parts uses high-pressure pumps to deburr machined parts as a part of its production and quality check process. They decided to monitor these pumps to make sure they work properly and that they can see any indications leading to a potential failure before it affects their process.