US 11,888,359 B2
Motor-driven compressor
Koki Shinohara, Kariya (JP); Junya Yano, Kariya (JP); Yusuke Kinoshita, Kariya (JP); and Kenji Momma, Kariya (JP)
Assigned to KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya (JP)
Filed by KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya (JP)
Filed on Mar. 28, 2022, as Appl. No. 17/705,859.
Claims priority of application No. 2021-057403 (JP), filed on Mar. 30, 2021.
Prior Publication US 2022/0320973 A1, Oct. 6, 2022
Int. Cl. H02K 11/33 (2016.01); H02K 9/22 (2006.01); H02K 11/30 (2016.01); H02M 7/00 (2006.01); F25B 31/02 (2006.01); B60H 1/32 (2006.01); F25B 49/02 (2006.01)
CPC H02K 11/33 (2016.01) [H02K 9/22 (2013.01); H02K 9/227 (2021.01); H02K 11/30 (2016.01); B60H 1/3205 (2013.01); F25B 31/02 (2013.01); F25B 49/025 (2013.01); F25B 2600/021 (2013.01); H02K 2211/03 (2013.01); H02M 7/003 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A motor-driven compressor, comprising:
a compression portion configured to compress a fluid;
an electric motor configured to drive the compression portion;
an inverter configured to drive the electric motor; and
a metal housing that accommodates the inverter, wherein
the inverter includes:
three-phase switching elements configured to perform switching operation; and
a plastic holder that retains the three-phase switching elements,
the metal housing includes a thermal radiation surface thermally coupled to the three-phase switching elements,
the plastic holder includes a metal spring that presses a switching element at a middle of the three-phase switching elements toward the thermal radiation surface,
the plastic holder is fixed to the metal housing using at least two fasteners,
the three-phase switching elements are laid out between the two fasteners,
switching elements at opposite ends of the three-phase switching elements are pressed toward the thermal radiation surface by only the plastic holder, and
the switching element at the middle of the three-phase switching elements is pressed toward the thermal radiation surface by the plastic holder and the metal spring.