Power conversion device with reduced wiring distance
First Claim
1. A power converter that directly converts polyphase AC power to AC power, the power converter comprising:
- a converter circuit including a plurality of switching elements that are connected to each phase of the polyphase AC power to enable switching for turning on current-carrying bidirectionally; and
at least three condensers connected to the converter circuit,wherein;
the plurality of switching elements are adjacently arranged in such a manner that respective input terminals of switching elements of the plurality of switching elements form a first line in a first arrangement direction and respective output terminals of said switching elements of the plurality of switching elements form another line in parallel with the first line;
the three condensers are respectively placed at apexes of a triangle on a plane that is above and in parallel with a part-mounting surface on which the plurality of switching elements are actually mounted; and
two of the three condensers are adjacently placed and arranged along the first arrangement direction and the remaining one of the three condensers is arranged outside the two condensers with respect to the position of the output terminals.
1 Assignment
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Accused Products
Abstract
Provided is a power converter 3 that directly converts polyphase AC power to AC power. A converter circuit has a plurality of switching elements 311, 313, 315, 312, 314 and 316 which are connected to each phase R, S or T of the polyphase AC power to enable switching for turning on current-carrying bidirectionally. At least three condensers 821 to 826 are provided between phases of the converter circuit. The three condensers are respectively placed at apexes of a triangle on a plane that is in parallel with a part-mounting surface on which the switching elements are actually mounted. The wiring distance between the condensers and the switching elements can be shortened.
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Citations
6 Claims
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1. A power converter that directly converts polyphase AC power to AC power, the power converter comprising:
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a converter circuit including a plurality of switching elements that are connected to each phase of the polyphase AC power to enable switching for turning on current-carrying bidirectionally; and at least three condensers connected to the converter circuit, wherein; the plurality of switching elements are adjacently arranged in such a manner that respective input terminals of switching elements of the plurality of switching elements form a first line in a first arrangement direction and respective output terminals of said switching elements of the plurality of switching elements form another line in parallel with the first line; the three condensers are respectively placed at apexes of a triangle on a plane that is above and in parallel with a part-mounting surface on which the plurality of switching elements are actually mounted; and two of the three condensers are adjacently placed and arranged along the first arrangement direction and the remaining one of the three condensers is arranged outside the two condensers with respect to the position of the output terminals. - View Dependent Claims (2, 3, 4, 5)
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6. A power converter that directly converts polyphase AC power to AC power, the power converter comprising:
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a converter circuit including a plurality of switching elements that are connected to each phase of the polyphase AC power to enable switching for turning on current-carrying bidirectinally; and at least three condensers connected to the converter circuit, wherein; the plurality of switching elements are adjacently arranged in such a manner that respective input terminals of switching elements of the plurality of switching elements form a first line in a first arrangement direction and respective output terminals of said switching elements of the plurality of switching elements form another line in parallel with the first line; the three condensers are respectively placed at apexes of a triangle on a plane that is in parallel with a part-mounting surface on which the plurality of switching elements are actually mounted; two of the three condensers are adjacently placed and arranged along the first arrangement direction and the remaining one of the three condensers is arranged outside the two condensers with respect to the position of the output terminals; and at least one part of the triangle is overlapped with said switching elements along a direction perpendicular to the part-mounting surface.
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Specification