An inverter comprises a shell and a power unit, the shell is provided with an accommodating cavity, a liquid inlet hole and a liquid outlet hole, the accommodating cavity is filled with cooling liquid, and the liquid inlet hole and the liquid outlet hole are respectively communicated with the accommodating cavity; the power unit is arranged in the accommodating cavity, and the power unit is immersed in the cooling liquid. The invention further provides a power assembly and an electric vehicle. The inverter adopts an immersion cooling design, the power unit in the shell is immersed in cooling liquid, and a cooling water pipeline does not need to be additionally arranged, so that the size of the inverter can be reduced; and an immersion mode is adopted, so that the contact area between the power unit and the cooling liquid is increased, the heat dissipation efficiency is improved, and the power of the inverter is further improved.
一种逆变器,包括壳体及功率单元,所述壳体设有收容腔、进液孔及出液孔,所述收容腔填充有冷却液体,所述进液孔及所述出液孔分别与所述收容腔连通;所述功率单元设于所述收容腔中,所述功率单元浸在所述冷却液体中。本申请还提供一种动力总成及电动车。所述逆变器采用浸没冷却设计,将壳体中的功率单元浸在冷却液体中,不需要额外设置冷却水管道,从而可减小逆变器的体积;并且采用浸没的方式,提升了功率单元与冷却液体的接触面积,提高了散热效率,进一步提升逆变器的功率。
Inverter, power assembly and electric vehicle
逆变器、动力总成及电动车
2022-04-05
Patent
Elektronische Ressource
Chinesisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H05K PRINTED CIRCUITS , Gedruckte Schaltungen |