Patent ID: 7969735
Filing Date: 2011-06-28
Classification: B60L,H02M,H05K,Y02T

Abstract:
1. A power converter, comprising: a semiconductor module constituting a main circuit for power conversion; a capacitor electrically connected to the main circuit; a drive circuit that provides the main circuit with a drive signal used in power conversion operation; a control circuit that provides the drive circuit with a control signal used to prompt the drive circuit to provide the drive signal; and a cooling chamber comprising a coolant passage formed therein, all housed inside a casing, wherein: a chamber wall of the cooling chamber is formed with a thermally conductive material; at least the semiconductor module is housed inside the cooling chamber; and at least the capacitor and be control circuit are disposed outside the cooling chamber, further wherein the coolant passage is located over a lower area of the cooling chamber; and the capacitor, thermally isolated from the semiconductor module via the coolant passage, is disposed on a lower side relative to the cooling chamber and is also thermally connected to the coolant passage.