Abstract: A power converter apparatus that includes a substrate, plate-like positive and negative interconnection members, and capacitors is disclosed. Pairs of groups of switching elements are mounted on the substrate. Each of the positive interconnection member and the negative interconnection member has a terminal portion. The terminal portion has a joint portion that is electrically joined to a circuit pattern on the substrate. The switching elements are arranged in the same number on both sides of the joint portion of at least the positive interconnection member of the positive and negative interconnection members.

Abstract: A power converter apparatus includes a substrate 22 on which switching elements Q, Q1 to Q6 are mounted, positive and negative terminal interconnection members 27, 28 mounted on the substrate, and a capacitor 17 having a positive terminal 17a connected to the main body of the positive terminal interconnection member 27 and a negative terminal 17b connected to the main body of the negative terminal interconnection member 28. The interconnection members each have a plate-like main body 27a, 28a that is located above and parallel to the substrate 22. The main bodies of the interconnection members are stacked to be close to each other while being electrically insulated from each other. Each of the positive terminal interconnection member and the negative terminal interconnection member further includes a plate-like extension 27b, 28b that extends from the corresponding main body toward the substrate, and a terminal portion 27c, 28c that extends from the extension and is joined to the substrate.

Abstract: A structure for mounting a heat-generating component includes a circuit board on which a heat-generating component is mounted, a base on which the circuit board is disposed upright, a cover having thermal conductivity, a heat-conductive member electrically isolated from the heat-generating component and a heat transfer plate. The heat transfer plate is attached to the circuit board so as to extend in the sliding direction of the cover to cover a surface of the heat-conductive member. The cover presses the heat transfer plate by an inner surface thereof against the heat-conductive member in a direction perpendicular to the heat-conductive member so that the heat-generating component is thermally connected to the inner surface of the cover through the heat-conductive member and the heat transfer plate.

Abstract: A structure for mounting a heat-generating component includes a circuit board on which a heat-generating component is mounted, a base on which the circuit board is disposed upright, a cover having thermal conductivity, a heat-conductive member electrically isolated from the heat-generating component and a heat transfer plate. The heat transfer plate is attached to the circuit board so as to extend in the sliding direction of the cover to cover a surface of the heat-conductive member. The cover presses the heat transfer plate by an inner surface thereof against the heat-conductive member in a direction perpendicular to the heat-conductive member so that the heat-generating component is thermally connected to the inner surface of the cover through the heat-conductive member and the heat transfer plate.

Abstract: A semiconductor unit includes a semiconductor chip, a ceramic substrate having a circuit pattern on which the semiconductor chip is mounted, and a temperature sensor for detecting a temperature. The semiconductor unit further includes a pressing member for retaining the temperature sensor by pressing against the ceramic substrate.

Abstract: A power converter apparatus that includes a substrate, plate-like positive and negative interconnection members, capacitors, and a cover is disclosed. Pairs of groups of switching elements are mounted on the substrate. The cover is arranged over the substrate to encompass the switching elements, the positive interconnection member, the negative interconnection member, and the capacitor. The positive interconnection member and the negative interconnection member each have a terminal portion that is joined to a circuit pattern on the substrate by ultrasonic bonding.

Abstract: A power converter apparatus that includes a substrate, plate-like positive and negative interconnection members, and capacitors is disclosed. Pairs of groups of switching elements are mounted on the substrate. Each of the positive interconnection member and the negative interconnection member has a terminal portion. The terminal portion has a joint portion that is electrically joined to a circuit pattern on the substrate. The switching elements are arranged in the same number on both sides of the joint portion of at least the positive interconnection member of the positive and negative interconnection members.

Abstract: A power converter apparatus includes a substrate 22 on which switching elements Q, Q1 to Q6 are mounted, positive and negative terminal interconnection members 27, 28 mounted on the substrate, and a capacitor 17 having a positive terminal 17a connected to the main body of the positive terminal interconnection member 27 and a negative terminal 17b connected to the main body of the negative terminal interconnection member 28. The interconnection members each have a plate-like main body 27a, 28a that is located above and parallel to the substrate 22. The main bodies of the interconnection members are stacked to be close to each other while being electrically insulated from each other. Each of the positive terminal interconnection member and the negative terminal interconnection member further includes a plate-like extension 27b, 28b that extends from the corresponding main body toward the substrate, and a terminal portion 27c, 28c that extends from the extension and is joined to the substrate.

Abstract: An electronic unit includes a first circuit board having a power semiconductor device and an electrolytic capacitor and a second circuit board having an electronic component to control the power semiconductor device. The second circuit board is arranged perpendicular to the first circuit board and along the surface of the electrolytic capacitor. The electronic unit further includes a connecting member being jointed at one end thereof to the first circuit board and jointed at the other end thereof to the second circuit board for electrical connection between the first and second circuit boards.

Abstract: A power converter includes a base plate having thereon a switching device, and positive and negative conductors respectively including main portions disposed parallel to the base plate. One of the main portions is placed over the other of the main portions. The main portions are disposed adjacent to and parallel to each other. The main portions are insulated from each other. The power converter includes a capacitor having positive and negative terminals electrically connected to the respective main portions of the positive and negative conductors. Each of the positive and negative conductors includes a side portion extending from the main portion toward the base plate, and a terminal portion extending from the side portion and joined to the base plate. The side portion is formed with a cutout extending from the end adjacent to the base plate to the opposite end connected to the main portion.