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公开(公告)号：US12132359B2
公开(公告)日：2024-10-29
申请号：US17892210
申请日：2022-08-22
发明人： Takamitsu Suzuki , Kei Sato , Masaya Furushou
摘要： An electric actuator includes a motor, an output shaft, a detent plate, an elastic portion including a contacted portion, a first rotation sensor, a second rotation sensor, and a controller. In a case where an abnormality has occurred in the second rotation sensor, the controller executes causing the motor to rotate to cause the contacted portion to abut a first side wall portion located on one end side in the circumferential direction of a first valley portion in the detent plate, acquiring the first rotation angle when the contacted portion abuts on the first side wall portion, reversely rotating the motor to an angle, and determining that the contacted portion is stationary at the parking position.
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公开(公告)号：US12088175B2
公开(公告)日：2024-09-10
申请号：US17848402
申请日：2022-06-24
发明人： Tomohiro Sakata , Shigehiro Kataoka
CPC分类号： H02K5/225 , H02K7/14 , H02K11/33 , H02K3/522 , H02K11/38 , H02K2203/03 , H02K2213/03
摘要： An electric pump includes a motor including a rotor rotatable about an axis extending in an axial direction and a stator with a coil wire, a pump connected to the rotor, a circuit board on a first side in the axial direction of the motor, and a coil guide between the motor and the circuit board. The coil wire extends to the first side in the axial direction and is connected to the circuit board. The coil guide includes a first portion guiding the coil wire along the axial direction, and a second portion which faces the motor and in which the first portion is opened. The second portion is a surface inclined to the first side in the axial direction toward an opening of the first portion. A width of the second portion as viewed from the axial direction decreases toward the opening of the first portion.
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公开(公告)号：US11973380B2
公开(公告)日：2024-04-30
申请号：US17577331
申请日：2022-01-17
发明人： Yoshiyuki Kobayashi , Tomohiro Sakata , Yuzo Nagai , Hideo Nagai
IPC分类号： H02K11/33
CPC分类号： H02K11/33 , F04C2240/808
摘要： An aspect of an electric pump of the present invention is an electric pump attached to a predetermined object. The electric pump includes a motor having a rotor rotatable about a center axis extending in an axial direction, a pump mechanism coupled to the rotor, a circuit board located radially outside the motor and having a plate face directed in a radial direction, an electrolytic capacitor attached to the plate face of the circuit board, and a housing that houses the motor, the pump mechanism, the circuit board, and the electrolytic capacitor therein. The housing has a mounting face attached to a predetermined object. The mounting face is a face directed radially outward. The plate face of the circuit board is disposed along a direction intersecting the mounting face. The electrolytic capacitor is disposed at a position closer to the mounting face than the center axis in the direction orthogonal to the mounting face.
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公开(公告)号：US11920591B2
公开(公告)日：2024-03-05
申请号：US17290305
申请日：2019-09-20
发明人： Koji Higuchi , Yutaka Hashimoto , Yoshiyuki Maki , Kohei Kubo
CPC分类号： F04C2/102 , F04C11/008 , F04C13/002 , F04C15/06 , F04C2210/206 , F04C2240/40
摘要： An electric oil pump includes a motor including a motor shaft, a pump assembly including a vane pump driven by the motor to suction and discharge oil, and an inverter to drive the motor. The motor includes a rotor, a stator on a side outward from the rotor in a radial direction, and a motor housing containing the rotor and the stator. The motor housing includes a suction port through which the vane pump suctions oil from outside, and a discharge port through which the vane pump discharges oil to outside. The motor housing includes flat surface portions in a portion of an outer periphery thereof. The suction port and the discharge port are located in a first surface of side surfaces which are the flat surface portions of the motor housing and are parallel or substantially parallel to the axial direction.
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公开(公告)号：US11555545B2
公开(公告)日：2023-01-17
申请号：US17486915
申请日：2021-09-28
摘要： An electromagnetic valve includes: a solenoid having a plunger movably supported along an axial direction; a flow path member having a fluid passage flow path and a valve element housing portion; and a valve element disposed in the valve element housing portion and movable along the axial direction together with the plunger. The valve element includes: a body part in a tubular shape having a wall portion closing one axial end side and an opening at the other axial side; a valve part fixed to one axial side of the wall portion for opening and closing the flow path as moving together with the plunger; and a core member in a columnar shape that is movable along the axial direction inside the body part, and that is in contact with the wall portion on the one axial side and the plunger on the other axial side.
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公开(公告)号：US20230012331A1
公开(公告)日：2023-01-12
申请号：US17858072
申请日：2022-07-06
发明人： Yoshiyuki SHIZUKU , Shigehiro KATAOKA , Takanobu YAHATA , Thao LETHITHANH , Nguyen Thi Thanh TAM
摘要： One aspect of a pump of the present invention includes a rotor rotatable about a central axis, a stator assembly located radially outside the rotor and surrounding the rotor, a pump unit connected to a first side in an axial direction of the rotor, a support member including a rotor accommodating portion, the rotor accommodating portion being located radially inside the stator assembly and accommodates the rotor therein, and a resin housing in which the stator assembly and the support member are molded. The rotor accommodating portion includes a lid portion that covers the rotor from a second side in the axial direction, and a tubular portion that is located between the rotor and the stator assembly in a radial direction and is open to the first side in the axial direction. The stator assembly includes a stator core having an annular shape, a plurality of coils mounted on the stator core, and a stator cover that covers the plurality of coils.
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公开(公告)号：US20230003311A1
公开(公告)日：2023-01-05
申请号：US17844666
申请日：2022-06-20
发明人： Saori NUIYA , Sho TANABE
摘要： Improvement of maintainability in a device on which a solenoid valve is mounted. An aspect of an electromagnetic valve module includes a cover detachably attached to an attachment portion of a housing as a part of the housing enclosing a fluid control device that controls fluid by a detachably attached electromagnetic valve, and an electromagnetic valve attached to the cover and mounted on the fluid control device as the cover is attached to the attachment portion.
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公开(公告)号：US11522404B2
公开(公告)日：2022-12-06
申请号：US16747552
申请日：2020-01-21
发明人： Shuichi Kinjo , Hiroshi Shirai , Yutaka Uematsu
摘要： An electric actuator includes a motor which has a rotor having a motor shaft extending along a central axis and a stator facing the rotor in a radial direction, a motor case for housing the motor, and a deceleration mechanism coupled to one axial side of the motor shaft. The motor case has a case cylinder portion, a lid for covering, and a plurality of screws. The case cylinder portion has a plurality of screw fixing portions. The lid has a top plate portion, an outer cylinder portion which surrounds the case cylinder portion from a radial outer side, an annular groove portion, and a seal member which seals the opening portion of the case cylinder portion. In the lid, an axial thickness of a region which overlaps the annular groove portion as viewed in the axial direction is larger than an axial thickness of the top plate portion.
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公开(公告)号：US20220307623A1
公开(公告)日：2022-09-29
申请号：US17699188
申请日：2022-03-21
摘要： An electromagnetic valve includes: a solenoid having a plunger movably supported along an axis O1 direction; a flow path member having a fluid passage flow path and a valve element housing portion; and a valve element in a columnar shape that is disposed in the valve element housing portion, is movable along the axis O1 direction together with the plunger, and can switch between an open state and a closed state. The flow path member has an abutment portion that abuts on the valve element in the valve element housing portion, and a biasing member that biases the valve element. The valve element has an enlarged-diameter portion on the radially outer side. The enlarged-diameter portion has an opposing surface portion opposing the abutment portion at least in the axis O1 direction. The opposing surface portion is in contact with the abutment portion in the open state.
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公开(公告)号：US20220307620A1
公开(公告)日：2022-09-29
申请号：US17697933
申请日：2022-03-18
发明人： Tomohiko NAKANISHI , Hiroki SHIMIZU
摘要： To provide an electromagnetic valve capable of preventing damage due to stress of a buffer member. An electromagnetic valve includes a solenoid having a case, a flow path member, and a columnar valve element that is housed in the valve element housing portion of the flow path member and moves with a plunger of the solenoid to open and close a flow path. A seat member with which the plunger comes into contact is disposed in the case of the solenoid. The seat member includes a core portion with which the plunger comes into contact, and a plurality of protruding portions protruding radially outward from an outer peripheral surface on the radially outer side of the core portion.
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