US 12,178,000 B2
Electric compressor
Satoshi Okada, Aichi-ken (JP); Katsuya Usami, Aichi-ken (JP); Yoshifumi Tada, Aichi-ken (JP); and Yuta Wato, Aichi-ken (JP)
Assigned to KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya (JP)
Filed by KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya (JP)
Filed on Mar. 16, 2022, as Appl. No. 17/696,436.
Claims priority of application No. 2021-045477 (JP), filed on Mar. 19, 2021.
Prior Publication US 2022/0304178 A1, Sep. 22, 2022
Int. Cl. H05K 7/14 (2006.01); H02K 7/18 (2006.01); H02K 11/30 (2016.01); H05K 1/02 (2006.01)
CPC H05K 7/1417 (2013.01) [H02K 7/18 (2013.01); H02K 11/30 (2016.01); H05K 1/0216 (2013.01); H05K 7/1432 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An electric compressor to be mounted on a vehicle configured to compress a refrigerant and discharge the compressed refrigerant, comprising:
An electric motor configured to drive the electric compressor,
an inverter portion configured to control and drive the electric motor; and
an inverter housing accommodating the inverter portion, the inverter portion including:
a circuit board;
a busbar fixed to the inverter housing and electrically connecting an external power supply to the circuit board;
a noise reduction circuit mounted on the circuit board and configured to reduce a noise component contained in current flowing through the busbar;
a first fastener fastening the circuit board to the inverter housing; and
a second fastener fastening the busbar to the circuit board,
wherein the circuit board includes:
a first fastening hole through which the first fastener is inserted;
a second fastening hole through which the second fastener is inserted; and
a slit extending between the first fastening hole and the second fastening hole from a peripheral edge of the circuit board so as to have a length that is equal to or greater than a distance between the first fastening hole and the second fastening hole, wherein
the slit extends from the peripheral edge in a direction toward the noise reduction circuit,
a distance between the first fastening hole and the noise reduction circuit is shorter than a distance between the second fastening hole and the noise reduction circuit, and
the first fastener electrically connects the circuit board as a ground of the noise reduction circuit to the inverter housing.