US 9,812,929 B2
Electric rotating machine
Yuji Shirakata, Chiyoda-ku (JP); Dai Nakajima, Chiyoda-ku (JP); Masahiko Fujita, Chiyoda-ku (JP); and Masaki Kato, Chiyoda-ku (JP)
Assigned to Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo (JP)
Appl. No. 14/372,493
Filed by Yuji Shirakata, Chiyoda-ku (JP); Dai Nakajima, Chiyoda-ku (JP); Masahiko Fujita, Chiyoda-ku (JP); and Masaki Kato, Chiyoda-ku (JP)
PCT Filed Apr. 16, 2012, PCT No. PCT/JP2012/060219
§ 371(c)(1), (2), (4) Date Jul. 16, 2014,
PCT Pub. No. WO2013/157065, PCT Pub. Date Oct. 24, 2013.
Prior Publication US 2014/0361648 A1, Dec. 11, 2014
Int. Cl. H02K 9/00 (2006.01); H02K 11/04 (2016.01); H02P 27/06 (2006.01); H02K 11/05 (2016.01); H02K 5/08 (2006.01); H02K 5/14 (2006.01); H02K 5/22 (2006.01); H02K 15/12 (2006.01); H02K 11/33 (2016.01)
CPC H02K 9/00 (2013.01) [H02K 11/046 (2013.01); H02K 11/048 (2013.01); H02K 11/05 (2016.01); H02P 27/06 (2013.01); H02K 5/08 (2013.01); H02K 5/141 (2013.01); H02K 5/225 (2013.01); H02K 11/33 (2016.01); H02K 15/12 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An electric rotating machine comprising:
a rotor fixed on a rotor shaft;
a stator that is disposed in such a way as to face the rotor and is provided with a stator winding;
a case that pivotably supports the rotor shaft and holds the stator; and
a control apparatus that is fixed to the case and has a power module composite provided with an electric-power conversion circuit that performs electric-power conversion between the stator winding and an external DC power source and the control apparatus having a control circuit unit that controls the electric-power conversion circuit,
wherein the electric-power conversion circuit provided in the power module composite is controlled by the control circuit unit so as to convert DC power from an external DC power source into AC power and supply the AC power to the stator winding or so as to convert AC power generated across the stator winding into DC power and supply the DC power to the DC power source,
wherein the power module composite includes a power module provided with switching devices included in the electric-power conversion circuit, a housing containing the power module, and a heat sink that is fixed to the housing and refrigerates the power module,
wherein the power module includes a first lead frame connected with a first electrode of at least one of the switching devices, a second lead frame connected with a second electrode of at least one of the switching devices, a third lead frame connected with a third electrode of at least one of the switching devices, and a molding resin for integrally molding the first lead frame, the second lead frame, and the third lead frame and for insulating the first lead frame, the second lead frame, and the third lead frame from one another,
wherein the heat sink adheres to the power module via an insulating material,
wherein the first lead frame and the second lead frame both protrude from one side face of the molding resin to the outside of the molding resin,
wherein the third lead frame protrudes from an other side face of the molding resin to the outside of the molding resin, and
wherein the one side face is provided along a first plane and the other side face is provide along a second plane different from the first plane.