Patent ID: 8228660
Filing Date: 2012-07-24
Classification: H01G

Abstract:
1. A case-molded capacitor comprising: a capacitor element including a first electrode and a second electrode, the first electrode being provided at one end of the capacitor element, the second electrode being provided at another end of the capacitor element; a first busbar including a first connection terminal and a first electrode terminal for external connection, the first connection terminal being joined directly to the first electrode of the capacitor element; a second busbar including a second connection terminal and a second electrode terminal for external connection, the second connection terminal being joined directly to the second electrode of the capacitor element; a case having an upper surface opening and made of metal, the case accommodating the capacitor element, the first busbar, and the second busbar therein; a mold resin filling the case to cover the capacitor element, the first busbar, and the second busbar except for the first electrode terminal and the second electrode terminal exposed from the mold resin; and a thermally-conductive insulator layer provided between the capacitor element and a bottom surface of the case and between the mold resin and the bottom surface of the case, the thermally-conductive insulator having a higher thermally-conductivity than the mold resin, wherein: the first and second electrodes extend perpendicularly with respect to the bottom surface of the case, the first and second connection terminals extend toward the bottom surface of the case and perpendicularly with respect to the bottom surface of the case, the first connection terminal is longer than the second connection terminal, the first connection terminal contacts the thermally-conductive insulator layer, and the second connection terminal does not contact the thermally-conductive insulator layer.