Inverter apparatus suitable for battery vehicle
First Claim
1. An inverter apparatus comprising:
- an insulated metal substrate on which an inverter output stage is mounted;
a conductive stud coupled to a main surface of said insulated metal substrate, and electrically connected with said inverter output stage;
a printed circuit board supported by said stud and having rear and main surfaces, wherein said stud is coupled on said rear surface, and a circuit connected to said inverter output stage is provided on said main surface;
a conductive spacer coupled to said main surface of said printed circuit board, and electrically connected with said stud; and
a bus bar coupled to said spacer.
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Accused Products
Abstract
An inverter apparatus is composed of an insulated metal substrate, a conductive stud, a printed circuit board, a conductive spacer, and a bus bar. An inverter output stage is mounted on the insulated metal substrate. The conductive stud is coupled to a main surface of the insulated metal substrate, and electrically connected with the inverter output stage. The printed circuit board is supported by the stud. The stud is coupled on the rear surface of the printed circuit board. Provided on the main surface of the printed circuit board is a circuit connected to the inverter output stage. The conductive spacer is coupled on the main surface of the printed circuit board, and electrically connected with the stud. The bus bar is coupled to the spacer.
21 Citations
18 Claims
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1. An inverter apparatus comprising:
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an insulated metal substrate on which an inverter output stage is mounted;
a conductive stud coupled to a main surface of said insulated metal substrate, and electrically connected with said inverter output stage;
a printed circuit board supported by said stud and having rear and main surfaces, wherein said stud is coupled on said rear surface, and a circuit connected to said inverter output stage is provided on said main surface;
a conductive spacer coupled to said main surface of said printed circuit board, and electrically connected with said stud; and
a bus bar coupled to said spacer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An inverter apparatus comprising:
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a U-phase output stage configured to output a U-phase voltage;
a V-phase output stage configured to output a V-phase voltage;
a W-phase output stage configured to output a W-phase voltage;
a printed circuit board on which a smoothing capacitor for stabilizing a DC power supply voltage fed to said U-phase, V-phase, and W-phase output stages;
a U-phase drive circuit provided on said printed circuit board, and configured to switch power transistors within said U-phase output stage;
a V-phase drive circuit provided on said printed circuit board, and configured to switch power transistors within said V-phase output stage; and
a W-phase drive circuit provided on said printed circuit board, and configured to switch power transistors within said W-phase output stage, wherein said U-phase drive circuit is positioned adjacent to a first edge of said printed circuit board, wherein said V-phase drive circuit is positioned adjacent to a second edge of said printed circuit board, and wherein said W-phase drive circuit is positioned adjacent to a third edge of said printed circuit board. - View Dependent Claims (12, 13, 14)
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15. An inverter apparatus comprising:
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at least one U-phase IMS board associated with a U-phase and mounting a U-phase output stage configured to output a U-phase voltage;
at least one V-phase IMS board associated with a U-phase, and mounting a V-phase output stage configured to output a V-phase voltage; and
at least one W-phase IMS board associated with a W-phase, and mounting a W-phase output stage configured to output a W-phase voltage, wherein said U-phase, V-phase, and W-phase IMS boards are arranged around a certain center point. - View Dependent Claims (16)
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17. An IMS board receiving a power supply level and a ground level to develop a voltage associated with one phase of a three-phase AC voltage, comprising:
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an insulated metal substrate;
a first stud provided on said insulated metal substrate to receive one of said power supply and ground levels;
a second stud provided on said insulated metal substrate to output said voltage associated with said one phase;
at least one third stud provided on said insulted metal substrate to receive another of said power supply and ground levels;
a plurality of first power transistors connected in parallel between said first and second studs; and
a plurality of second power transistors connected in parallel between said second stud and said at least one third stud, wherein said plurality of first power transistors are arranged in line in a first direction, wherein said plurality of second power transistors are arranged in line in said first direction, wherein said first stud is positioned misaligned from a line of said plurality of first power transistors in said first direction, wherein said second stud is positioned misaligned from a line of said plurality of second power transistors in a second direction opposite to said first direction, and wherein said at least one third stud is positioned misaligned from said lines of said first and second power transistors in a third direction orthogonal to said first direction. - View Dependent Claims (18)
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Specification