新能源汽车电机冷却系统压力检测
发布时间:2021-01-28
新能源汽车电机冷却系统压力检测
新能源汽车是目前全球汽车产业发展的一个大趋势,其中电动汽车为一个主要分支。电动机作为
电动汽车驱动可实现极低排放或零排放。电动汽车在驱动与回收能量的工作过程中,电动机定子
新能源汽车电机冷却系统压力检测
新能源汽车是目前全球汽车产业发展的一个大趋势,其中电动汽车为一个主要分支。电动机作为
电动汽车驱动可实现极低排放或零排放。电动汽车在驱动与回收能量的工作过程中,电动机定子
铁芯、定子绕组在运动过程中都会产生损耗,这些损耗以热量的形式向外发散。所以系统需要有
效的冷却介质及冷却方式来带走热量,保证电动机在一个稳定的冷热循环平衡的通风系统中安全
可靠运行。电动机冷却系统设计的好坏将直接影响电动机的安全运行和使用寿命。
At present, new energy vehicle is a major trend in the development of the global auto industry, in which
electric vehicles is a major branch. Motor as an electric vehicle power resource can achieve very low or
zero emissions. In the process of driving and recovering energy of electric vehicle, the motor stator core
and stator winding will generate heat in the process of movement. Therefore, the system needs
effective cooling medium and cooling method to take away the heat to ensure the safe and reliable
operation of the motor in a stable cold. The design of motor cooling system will directly affect the safe
operation and service life of motor.
新能源汽车驱动电机冷却系统一般与电力电子箱(PEBPower electrical box)共用,PEB 和驱动
电机的工作温度不能超过 75℃,最合适的工作温度应该低于 65℃。将温度控制在 75℃以下可以
更好的延长 PEB 和驱动电动机的使用寿命。
The motor cooling system is generally shared with PEB Power electrical box. The operating temperature
of PEB and driving motor cannot exceed 75 , and optimum working temperature should be below
65 . Temperature control under than 75 can prolong the service life of PEB and drive motor.文章1.png
所以厂家为了确认冷却系统的可靠性和密封性,针对冷却系统耐压与密封性做出厂测试是必要
的。系统耐压测试压力范围 0~1.5MpaG, 需求测试精度>=0.2%FS,校准温度范围-20~80℃。密封
测试压力为 0.15MpaG,测试精度>=0.2%FS, 温度范围-20~80℃。
Therefore, the OEMs are necessary to verify cooling system reliability and sealing performance before
final assembly. The pressure range of over pressure test is 0~1.5MpaG, precision > = 0.2%FS, calibration
temperature range-20 ~ 80 . Sealing test pressure range is 0~0.15MpaG, test precision > = 0. 2%FS,
temperature range-20 ~ 80 .
汽车测试行业是 Druck 传感器的传统应用行业,具有很高的市场占有率。针对于客户需求,推荐
产品方案如下:
PTX5072-TB-A*-CA-PB0-1.5barG/0~15barG. 具体精度可根据客户实际需求配置。
通过与客户相关应用技术沟通交流,已有国际最领先的新能源汽车企业正常安装使用。综合考虑
Druck 传感器主要优势有如下三点: Druck 产品高精度; 优良的长期稳定性;具有本地生产工厂
和技术支持可快速响应客户需求。
Auto testing industry is a traditional application segment of Druck sensor which has high market
sharing. According to customer requirements, recommended schemes are as follows:
PTX5072-TB-A2-CA-PB0-1.5barG/0~15barG.
After the introduction of Druck’s pressure sensor and following extensive qualification and acceptance
sample test, the customer was very satisfied with UNIK5000’s high accuracy, reliability and long-term
stability as well as Druck’s localized technical support, production and service capability. 
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