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公开(公告)号：US12203480B2
公开(公告)日：2025-01-21
申请号：US17688208
申请日：2022-03-07
Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Inventor： Takeshi Okochi , Yusuke Kinoshita , Junya Yano , Shogo Urabe
Abstract: A motor-driven compressor includes a rotary shaft, an electric motor, a compression unit, an inverter, a housing, and an inverter case. The housing includes a housing end wall and a housing circumferential wall, which extends from a housing end wall in an axial direction of the rotary shaft. The inverter case includes a case end wall, which extends in the axial direction from the case end wall. The seal circumferential wall includes a proximal end connected to the case end wall and an end face located at a distal end. The housing circumferential wall includes an opposed surface that is opposed to the end face. An annular seal member is provided between the seal circumferential wall and the housing circumferential wall. The seal member extends in a radial direction of the rotary shaft between the end face and the opposed surface.
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公开(公告)号：US11646624B2
公开(公告)日：2023-05-09
申请号：US16824192
申请日：2020-03-19
Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Inventor： Shumpei Yamakage , Yusuke Kinoshita , Junya Yano
Abstract: An electric compressor includes a cylindrical motor housing, an inverter case, and a conductive member. The inverter case is joined to an end portion of the motor housing. The inverter case includes a cylindrical case peripheral wall surrounding the end portion. The end portion has an end face that extends in a radial direction of the motor housing and a peripheral surface that extends in an axial direction of the motor housing and is connected to the end face. A ring-shaped sealing member is disposed between the peripheral surface and the case peripheral wall. An accommodation groove for accommodating the sealing member is recessed in the peripheral surface. The sealing member is held by the peripheral surface and the case peripheral wall in a radial direction of the sealing member to seal a space in which the conductive member is disposed.
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公开(公告)号：US10087942B2
公开(公告)日：2018-10-02
申请号：US14312848
申请日：2014-06-24
Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Inventor： Junya Yano , Akio Fujii , Junichi Takahata
Abstract: A motor-driven compressor that includes a compression unit adapted to compress refrigerant, an electric motor adapted to drive the compression unit, and a housing that accommodates the compression unit and the electric motor and includes a coupling member. A motor driving circuit drives the electric motor. The motor driving circuit includes a circuit board and a capacitor, which is electrically connected to the circuit board. A capacitor holder holds the capacitor and is coupled to the coupling member. One of the capacitor holder and the coupling member includes a projection, and the other one of the capacitor holder and the coupling member includes an engagement portion that engages with the projection. Engagement between the projection and the engagement portion positions the capacitor holder relative to the coupling member.
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公开(公告)号：US09790944B2
公开(公告)日：2017-10-17
申请号：US14558975
申请日：2014-12-03
Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Inventor： Junya Yano , Tsuyoshi Yamaguchi , Tatsuya Koide , Ken Suitou , Yoshiki Nagata
IPC: F04D13/06 , F04D15/02 , F04C23/00 , F04C28/06 , H02P27/08 , H02P23/00 , H02P29/024 , H02P29/68 , F04C18/02
CPC classification number: F04D15/0263 , F04C18/0215 , F04C23/008 , F04C28/06 , F04C2270/19 , F04C2270/70 , F04D13/06 , H02P23/009 , H02P27/08 , H02P29/0241 , H02P29/68
Abstract: A motor-driven compressor includes an electric motor driven by a motor driver, which includes a switching element that converts DC voltage from a battery to AC voltage. A temperature detector detects the temperature of the switching element. A voltage detector detects DC voltage applied to the switching element from the battery. A control unit suspends the switching operation of the switching element when the detected temperature rises to a temperature threshold. The control unit reduces counter electromotive force generated by the electric motor. The controller changes the temperature threshold such that the temperature threshold gradually increases from when the detected DC voltage is the highest voltage in the applicable voltage range of the battery to when the detected DC voltage is the lowest voltage in the applicable voltage range.
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公开(公告)号：US11486378B2
公开(公告)日：2022-11-01
申请号：US17157488
申请日：2021-01-25
Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Inventor： Takeshi Okochi , Junya Yano , Yusuke Kinoshita , Shumpei Yamakage
Abstract: An electric compressor includes a housing, an inverter, an inverter case, a case bottom wall, and a case peripheral wall. The inverter case has a seal peripheral wall. The seal peripheral wall has a cylindrical shape and extends from the case bottom wall in a direction opposite to a direction in which the case peripheral wall extends. The seal peripheral wall surrounds a part of an outer peripheral surface of the housing. A seal member having an annular shape seals a gap between an inner peripheral surface of the seal peripheral wall and the outer peripheral surface of the housing.
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Patent Agency Ranking
公开(公告)号：US20220320949A1
公开(公告)日：2022-10-06
申请号：US17706096
申请日：2022-03-28
Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Inventor： Koki SHINOHARA , Junya Yano , Yusuke Kinoshita
Abstract: A fluid machine includes an inverter compartment defined by a housing and a cover, the inverter compartment accommodating an inverter, and a wire electrically connected to an external connector and supplying power to a circuit board of the inverter. The wire includes a board coupling portion electrically connected to the circuit board, a connector coupling portion electrically connected to the external connector, and an extended portion extending along a wall surface of the cover and connecting the board coupling portion and the connector coupling portion. The fluid machine further includes a plastic mold covering the extended portion, and an anchor formed integrally with the plastic mold and engaged with a through-hole of the cover. The extended portion is held on the wall surface of the cover by the anchor.
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公开(公告)号：US11171537B2
公开(公告)日：2021-11-09
申请号：US16366377
申请日：2019-03-27
Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Inventor： Yusuke Kinoshita , Shingo Enami , Junya Yano , Shigehiro Kasho , Masato Tsukahara
Abstract: An electric compressor for a vehicle includes an inverter, a motor, and a first connector and a second connector electrically connecting an in-vehicle power supply and the motor with the first connector and the second connector being fitted to each other. The first connector includes a tubular receiving portion made of resin and a first conductive portion disposed inside the receiving portion. The second connector includes a tubular insertion portion made of resin and insertable into the receiving portion, and a second conductive portion disposed inside the insertion portion and connected to the first conductive portion. A rib is disposed between an inner surface of the receiving portion and an outer surface of the insertion portion. The rib is formed integrally with one of the inner surface and the outer surface, and is in contact with the other of the inner surface and the outer surface.
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公开(公告)号：US10677262B2
公开(公告)日：2020-06-09
申请号：US15853028
申请日：2017-12-22
Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Inventor： Yusuke Kinoshita , Shingo Enami , Junya Yano
Abstract: A motor-driven compressor includes collars, which maintain the gap between a cover and an outer surface of a first housing member. Fasteners fasten the cover to the first housing member. Each collar is arranged to face a seating surface of the head of the corresponding fastener such that the cover is sandwiched between the collars and the seating surfaces. Each collar thus includes a facing portion, which faces the seating surface and receives a pressing force from the seating surface via the cover, and a transmitting portion, which transmits the pressing force received at the facing portion to a base member. Accordingly, the pressing force applied through the seating surface of the fastener is transmitted to the base member through the collar, so that the base member is pressed against the outer surface of the first housing member.
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公开(公告)号：US10107293B2
公开(公告)日：2018-10-23
申请号：US15082101
申请日：2016-03-28
Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Inventor： Yusuke Kinoshita , Ken Suitou , Tatsuya Koide , Junya Yano
IPC: H02K11/00 , F04D25/06 , H02K5/22 , H01R13/187
Abstract: An electric compressor has a hermetic terminal unit that is electrically connected to a motor side wire and a drive circuit side wire and inserted through a through hole formed through a separation wall separating a motor chamber and an accommodating chamber. The hermetic terminal unit has a first connecting terminal that is electrically connected to the motor side wire and elastically deformable, a second connecting terminal that is electrically connected to the drive circuit side wire and elastically deformable, and a conductive member that is fitted to the first connecting terminal and the second connecting terminal and electrically connects the first connecting terminal and the second connecting terminal. The first connecting terminal is elastically deformed and holds the motor side wire by a restoring force thereof. The second connecting terminal is elastically deformed and holds the drive circuit side wire by a restoring force thereof.
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公开(公告)号：US09831747B2
公开(公告)日：2017-11-28
申请号：US14463885
申请日：2014-08-20
Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Inventor： Yusuke Kinoshita , Ken Suitou , Tatsushi Mori , Kazuhiro Kuroki , Tatsuya Koide , Junya Yano , Takuro Mizuno
Abstract: A motor-driven compressor includes a metal housing accommodating a compression unit and an electric motor and a cover coupled to the housing. The cover and the housing define an accommodation chamber that accommodates a motor driving circuit that drives the electric motor. The cover includes a metal shield that blocks electromagnetic noise, a resin outer insulator that is fixed to an outer side of the shield and includes an outer circumferential portion, and a resin inner insulator that is fixed to an inner side of the shield and includes an outer circumferential portion. The shield, the outer insulator, and the inner insulator are separate from one another and stacked together. The shield is held between the outer insulator and the inner insulator. The outer circumferential portion of the outer insulator is joined to the outer circumferential portion of the inner insulator.
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