新能源汽車電機冷卻系統壓力檢測
新能源汽車電機冷卻系統壓力檢測
New Energy Vehicle Motor cooling system Pressure Detection
新能源汽車是目前全球汽車產業發展的一個大趨勢，其中電動汽車為一個主要分支。電動機作為
電動汽車驅動可實現極低排放或零排放。電動汽車在驅動與回收能量的工作過程中，電動機定子
鐵芯、定子繞組在運動過程中都會產生損耗，這些損耗以熱量的形式向外發散。所以系統需要有
效的冷卻介質及冷卻方式來帶走熱量，保證電動機在一個穩定的冷熱循環平衡的通風系統中**
可靠運行。電動機冷卻系統設計的好壞將直接影響電動機的**運行和使用壽命。
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.
新能源汽車驅動電機冷卻系統一般與電力電子箱（PEB：Power electrical box）共用，PEB 和驅動
電機的工作溫度不能超過 75℃，*合適的工作溫度應該低于 65℃。將溫度控制在 75℃以下可以
更好的延長 PEB 和驅動電動機的使用壽命。
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.
所以廠家為了確認冷卻系統的可靠性和密封性，針對冷卻系統耐壓與密封性做出廠測試是必要
的。系統耐壓測試壓力范圍 0~1.5MpaG， 需求測試精度>=0.2%FS，校準溫度范圍-20~80℃。密封
測試壓力為 0.15MpaG，測試精度>=0.2%FS, 溫度范圍-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 ℃.
汽車測試行業是 Druck 傳感器的傳統應用行業，具有很高的市場占有率。針對于客戶需求，推薦
產品方案如下：
PTX5072-TB-A*-CA-PB，0-1.5barG/0~15barG. 具體精度可根據客戶實際需求配置。
通過與客戶相關應用技術溝通交流，已有國際*優越的新能源汽車企業正常安裝使用。綜合考慮
Druck 傳感器主要優勢有如下三點： Druck 產品高精度； 優良的長期穩定性；具有本地生產工廠
和技術支持可快速響應客戶需求。
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-PB，0-1.5barG/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.
