A power module includes a plurality of semiconductor devices constituting upper/lower arms of an inverter circuit, a plurality of conductive plates arranged to face electrode surfaces of the semiconductor devices and a module case configured to accommodate the semiconductor devices and the conductive plates, wherein the module case includes a heat radiation member made of plate-like metal and facing a surface of the conductive plate and a metallic frame body having an opening portion that is closed by the heat radiation member, and wherein a heat radiation fin unit having a plurality of heat radiation fins vertically arranged thereon is provided at a center of the heat radiation member, and a joint portion with the frame body is provided at an external peripheral edge of the heat radiation member, and the heat radiation member has a heat conductivity higher than that of the frame body, and the frame body is of a higher rigidity than that of the heat radiation member.
POWER MODULE AND POWER CONVERSION APPARATUS USING SAME
STROMMODUL UND STROMUMRICHTERVORRICHTUNG DAMIT
MODULE DE PUISSANCE ET APPAREIL DE CONVERSION DE PUISSANCE UTILISANT LEDIT MODULE
2017-02-08
Patent
Electronic Resource
English
IPC: | H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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