Patent ID: 11888359
Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F  B | IPC B  F  H

Claim 0:
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.