US 2007/0183130 A1 · Power conversion apparatus

Abstract

A power conversion apparatus comprising a base 110 which includes a first fixation portion 110a and a second fixation portion 110b that are coupled to each other at a desired angle, wherein power modules IPM1, IPM2 and IPM3 are fixed on the first fixation portion 110a of the base 110, a control circuit board 10 is fixed with its first principal surface 10a held in direct or indirect touch with the second fixation portion 110b of the base 110, and components constituting a control circuit are packaged on the second principal surface 10b of the control circuit board 10. Owing to the configuration, a versatility for the installation of the power conversion apparatus on a vehicle becomes high, the vibration-proofness of the control circuit board is enhanced, and heats generated by the electronic components, etc. packaged on the control circuit board are sufficiently emitted.

Claims14

Dependent claims

A power conversion apparatus comprising power modules which include semiconductor elements constituting a power conversion circuit for converting powers between DC and AC, a control circuit board on which components constituting a control circuit for driving and controlling said semiconductor elements are packaged, bus bars which connect said power conversion circuit and an external equipment, and a base on which, at least, said power modules and said control circuit board are fixed;

wherein said base includes a first fixation portion and a second fixation portion which are coupled to each other at a desired angle, said power modules are fixed on said first fixation portion of said base, said control circuit board is fixed with its first principal surface held in direct or indirect touch with said second fixation portion of said base, and said components are packaged on a second principal surface of said control circuit board.

A power conversion apparatus comprising a plurality of pairs of power modules which include semiconductor elements constituting a power conversion circuit for converting powers between DC and AC, a plurality of control circuit boards on which components constituting control circuits for driving and controlling said semiconductor elements are packaged, bus bars which connect said power conversion circuit and an external equipment, and a base on which, at least, said power modules and said control circuit boards are fixed;

wherein said base includes a first fixation portion, a second fixation portion which is coupled to one end of said first fixation portion, and a third fixation portion which is coupled to the other end of said first fixation portion;
said first fixation portion and said second fixation portion, and said first fixation portion and said third fixation portion are respectively coupled to each other at desired angles;
said plurality of pairs of power modules are fixed on said first fixation portion of said base;
at least one of said plurality of control circuit boards is fixed with its first principal surface held in direct or indirect touch with said second fixation portion of said base;
said components are packaged on a second principal surface of said at least one control circuit board;
at least one other control circuit board is fixed with its first principal surface held in direct or indirect touch with said third fixation portion of said base;
and said components are packaged on a second principal surface of said at least one other control circuit board.

4 more elements

Dependencies are inferred from the claim text.

Power conversion apparatus

Life of this patent

Power conversion apparatus

Life of this patent

Abstract

Claims14