An electric-power conversion apparatus has a heat sink (137) in which one side portion (1371) out of a pair of side portions that extend in a direction perpendicular to the axial direction of a motor (21) is formed shorter than the other side portion (1372) thereof; a lower case (102) to which the heat sink (137) is fixed is fastened to a driving apparatus (2) through the intermediary of fixing portions (103,104,105,106) at the both end portions of each of the pair of side portions of the heat sink (137) or at respective positions in the vicinity of the both end portions of each of the pair of side portions of the heat sink (137); at least one of a reactor (134) and capacitors (132,133) is disproportionately disposed to be closer to said one side portion (1371) than to said the other side portion (1372) of the heat sink (137).
本发明的功率转换装置具有在与电动机(21)的轴方向正交的方向上延伸的一对边部中的一个边部(1371)的尺寸形成为比另一个边部(1372)的尺寸要短的散热器(137),对散热器(137)进行固定的下侧壳体(102)在散热器(137)的一对边部各自的两端部或两端部附近的位置通过固定部(103、104、105、106)紧固至驱动装置(2),电抗器(134)和电容器(132、133)中的至少一方被配置为比散热器(137)的另一个边部(1372)更偏向一个边部(1371)的一侧。
ELECTRIC-POWER CONVERSION APPARATUS
功率转换装置
2021-07-06
Patent
Elektronische Ressource
Chinesisch
IPC: | H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 / H05K PRINTED CIRCUITS , Gedruckte Schaltungen |