公开(公告)号：US20240052819A1

公开(公告)日：2024-02-15

申请号：US18358233

申请日：2023-07-25

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Hiroki ISHIHARA ,  Katsuya USAMI ,  Atsushi OSHIMA ,  Satoshi OKADA ,  Yoshifumi TADA ,  Takuya SAGAWA

IPC: F04B35/04

CPC classification number: F04B35/04 ,  F04B2203/0208

Abstract: A motor-driven compressor for a vehicle includes a control device and a detection circuit. The detection circuit includes an AD conversion circuit. The AD conversion circuit converts an on-voltage from an analog signal to a digital signal. The control device is configured to determine that a battery is in an overvoltage state and stop the motor-driven compressor for the vehicle when a value of the on-voltage detected from the digital signal is larger than an overvoltage determination threshold value.

公开(公告)号：US20210320566A1

公开(公告)日：2021-10-14

申请号：US17223527

申请日：2021-04-06

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Kouki YAMAMOTO ,  Mikio YOSHIDA ,  Kenji HAYAKAWA ,  Takuya SAGAWA ,  Yusuke KINOSHITA ,  Shunsuke AMBO ,  Junya KAIDA

IPC: H02K11/33 ,  H03H7/42 ,  H02K5/06 ,  B60H1/32 ,  F04D25/06 ,  F04D29/66 ,  F04D29/40

Abstract: An electric compressor includes a compression part, an electric motor, an inverter device, and a housing. The inverter device includes an inverter circuit, a noise reduction unit, and a circuit board. The noise reduction unit includes a common mode choke coil and a smoothing capacitor. The common mode choke coil includes an annular core, a pair of winding wires, and an annular electrical conductor. The electrical conductor is split into a first metal plate and a second metal plate in a circumferential direction. The first metal plate is thermally coupled to the housing. The second metal plate is electrically connected to the first metal plate. An electrical resistance value of the first metal plate is larger than that of the second metal plate.

公开(公告)号：US20210301803A1

公开(公告)日：2021-09-30

申请号：US17209958

申请日：2021-03-23

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Shunsuke AMBO ,  Yoshiki NAGATA ,  Takashi KAWASHIMA ,  Hiroshi FUKASAKU ,  Kaida JUNYA ,  Takeshi HARASAWA ,  Kenji HAYAKAWA ,  Takuya SAGAWA ,  Fumihiro KAGAWA ,  Mikio YOSHIDA ,  Kouki YAMAMOTO

IPC: F04B35/04 ,  H02K11/33

Abstract: A vehicle electric compressor includes a compression part, an electric motor, and an inverter device. The inverter device includes a noise reduction unit that includes a common mode choke coil. The common mode choke coil includes a core, a first winding wire, a second winding wire, and an electrical conductor that covers the core. The electrical conductor has a first insulation layer and a second insulation layer. The first insulation layer, the electrical conductor, and the second insulation layer form a laminated body including a loop-shaped portion that covers the core and a joint portion.