US 11,990,800 B2
Motor-driven compressor
Yumin Hishinuma, Kariya (JP)
Assigned to KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya (JP)
Filed by KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya (JP)
Filed on Jul. 5, 2022, as Appl. No. 17/857,399.
Claims priority of application No. 2021-113570 (JP), filed on Jul. 8, 2021.
Prior Publication US 2023/0007909 A1, Jan. 12, 2023
Int. Cl. H02K 11/33 (2016.01); F04C 2/02 (2006.01)
CPC H02K 11/33 (2016.01) [F04C 2/025 (2013.01); F04C 2240/30 (2013.01); F04C 2240/403 (2013.01); F04C 2240/808 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A motor-driven compressor, comprising:
a compression unit configured to compress a fluid;
an electric motor configured to drive the compression unit;
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 operations; and
a holder made of a plastic, the holder retaining the three-phase switching elements,
the housing includes a heat dissipating surface that is thermally coupled to the three-phase switching elements,
the holder is fixed to the housing with fastening members and is configured to push the three-phase switching elements toward the heat dissipating surface,
the three-phase switching elements are arranged along a line segment that connects two of the fastening members,
the holder includes:
a first accommodating recess that directly contacts and at least partially receives one of the three-phase switching elements that is located in a middle; and
two second accommodating recesses that directly contact and at least partially receive two of the three-phase switching elements respectively that are located at opposite ends of said one of the three-phase switching elements,
each of the two second accommodating portions includes a tongue-shaped contact portion, the contact portion contacting a corresponding switching element, and
the contact portions are configured to be deformed to reduce a pushing force of the holder acting on the switching elements.