POWER CONVERTER
First Claim
1. A power converter comprising:
- semiconductor modules each having a semiconductor element mounted thereon;
a cooler for cooling the semiconductor module;
control boards that control the semiconductor modules; and
a current detector that detects one of an input current and an output current of the semiconductor module,wherein the semiconductor modules are arranged on both surfaces of the cooler,wherein the current detector is arranged to face a surface of the cooler, which comes out of contact with the semiconductor module,wherein at least two of the control boards are arranged to hold the cooler, the semiconductor modules, and the current detector therebetween, andwherein the current detector has a wiring that electrically connects between the control boards.
1 Assignment
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Accused Products
Abstract
In a power converter in which semiconductor modules are arranged on both surfaces of a cooler for downsizing, an excellent connection between control boards and a low inductance connection between smoothing capacitors and the semiconductor modules are performed at the same time. The semiconductor modules are disposed on both surfaces of the cooler, and control boards that control the semiconductor modules are arranged opposite to the respective semiconductor modules. The semiconductor modules and the cooler are held between the control boards. A current detector or a terminal block is disposed at a position perpendicular to a surface on which the cooler and the semiconductor modules contact each other, opposite to the cooler. The respective control boards disposed on both surfaces of the cooler are electrically connected by using wirings provided in the current detector or the terminal block.
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Citations
27 Claims
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1. A power converter comprising:
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semiconductor modules each having a semiconductor element mounted thereon; a cooler for cooling the semiconductor module; control boards that control the semiconductor modules; and a current detector that detects one of an input current and an output current of the semiconductor module, wherein the semiconductor modules are arranged on both surfaces of the cooler, wherein the current detector is arranged to face a surface of the cooler, which comes out of contact with the semiconductor module, wherein at least two of the control boards are arranged to hold the cooler, the semiconductor modules, and the current detector therebetween, and wherein the current detector has a wiring that electrically connects between the control boards. - View Dependent Claims (2, 3, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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4. A power converter comprising:
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semiconductor modules each having a semiconductor element mounted thereon; a cooler for cooling the semiconductor module; control boards that control the semiconductor modules; and an input or output terminal block for connecting an input wiring or an output wiring, which is connected to the semiconductor modules, to an external wiring of the power converter, wherein the semiconductor modules are arranged on both surfaces of the cooler, wherein the terminal block is arranged to face a surface of the cooler, which comes out of contact with the semiconductor modules, wherein at least two of the control boards are arranged to hold the cooler, the semiconductor modules, and the terminal block therebetween, and wherein the terminal blocks mechanically hold at least two of the control boards, and have a wiring that electrically connects between the respective control boards. - View Dependent Claims (5)
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7. A power converter, comprising:
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semiconductor modules each having a semiconductor element mounted thereon; a cooler having front and rear surfaces on which the semiconductor modules are mounted for cooling the semiconductor modules; a first control board disposed to face one of the semiconductor modules; a second control board disposed to face the other semiconductor module; a third control board disposed to face an opposite surface of the surface of the second control board opposite the semiconductor module; and one of a current detector and a terminal block disposed to face a surface of the cooler, which comes out of contact with the semiconductor modules, and detects one of an input current and an output current of the semiconductor modules, wherein driver circuits that drive the semiconductor modules opposite to the respective control boards are mounted on the first control board and the second control board, wherein an output control circuit that operates the semiconductor modules and controls an output of the power converter is mounted on the third control board, and wherein wirings that electrically connect among the respective control boards is provided in the current detector or the terminal block.
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Specification