US 12,308,724 B2
Inverter integrated gas supply device with sealing member for motor connector
Nobuyuki Ikeya, Tokyo (JP); Yuji Sasaki, Tokyo (JP); Masaya Taniguchi, Tokyo (JP); Gen Kuwata, Tokyo (JP); and Satoru Ohashi, Tokyo (JP)
Filed by IHI Corporation, Tokyo (JP)
Filed on Sep. 22, 2021, as Appl. No. 17/481,311.
Application 17/481,311 is a continuation of application No. PCT/JP2020/011851, filed on Mar. 17, 2020.
Claims priority of application No. 2019-059957 (JP), filed on Mar. 27, 2019.
Prior Publication US 2022/0006355 A1, Jan. 6, 2022
Int. Cl. H02K 5/10 (2006.01); H02K 5/20 (2006.01); H02K 5/22 (2006.01); H02K 9/197 (2006.01); H02K 11/33 (2016.01)
CPC H02K 5/10 (2013.01) [H02K 5/225 (2013.01); H02K 11/33 (2016.01); H02K 5/203 (2021.01); H02K 9/197 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An inverter integrated gas supply device comprising:
an electric motor having a motor casing and configured to drive a fluid machine that discharges air;
an inverter having an inverter casing and configured to supply a drive current for controlling the number of rotations of the electric motor to the electric motor;
a motor-side connection part attached to the motor casing and configured to receive the drive current; and
an inverter-side connection part attached to the inverter casing, connected to the motor-side connection part, and configured to supply the drive current to the motor-side connection part,
wherein the motor-side connection part includes:
a motor-side connector housing fixed to the motor casing, wherein the motor-side connector housing has a hole forming an inner wall surface, wherein the inner wall surface includes a large diameter portion that is located between a first portion of the inner wall surface and a second portion of the inner wall surface, and wherein the large-diameter portion has a greater diameter relative to both the first portion and the second portion;
a motor connector disposed in the hole of the motor-side connector housing and configured to receive the drive current from the inverter-side connection part;
a sealing member configured to seal a gap that is formed by the large diameter portion of the hole, between the motor side connector housing and the motor connector.