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31.发明申请公开(公告)号：US20200319048A1
公开(公告)日：2020-10-08
申请号：US16303679
申请日：2017-05-24
Applicant: Nidec Tosok Corporation
Inventor： Yoshiyuki KOBAYASHI , Shigehiro KATAOKA , Yoshihiro KAMIMURA
Abstract: A pressure detection apparatus includes a base plate including a first surface, a second surface, and an opening, a pressure sensor disposed on the first surface so as to cover the opening of the base plate and outputting an electric signal according to a pressure of measured fluid inside the opening, a lead terminal electrically connected to the pressure sensor, a housing holding the base plate and the lead terminal and including an exposed portion in which a portion of the lead terminal is exposed, and a capacitor protecting the pressure sensor. The housing includes a capacitor housing portion, the capacitor being electrically connected to the lead terminal inside the exposed portion, and a positioning portion that positions, inside the capacitor housing portion, the capacitor that has been mounted in the capacitor housing portion.
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公开(公告)号：US20200018309A1
公开(公告)日：2020-01-16
申请号：US16484580
申请日：2018-02-23
Applicant: Nidec Tosok Corporation
Inventor： Yoshiyuki KOBAYASHI , Kazuhiro HOMMA , Koji HIGUCHI , Yosuke ITO
Abstract: A pump apparatus includes a motor that rotates a shaft, and a pump that is driven by the shaft, suctions an oil, and delivers the oil to the motor. The pump apparatus includes a first flow channel to suction an oil into the pump through a suction port provided in a pump cover using a negative pressure in the pump, a second flow channel to deliver an oil to the inside of the motor through a delivery port provided in a pump body using pressurization of the pump, a third flow channel provided between a stator and a rotor, a fourth flow channel provided between the stator and a housing, and a fifth flow channel to discharge an oil inside the motor through a discharge port provided in the housing.
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公开(公告)号：US20200003210A1
公开(公告)日：2020-01-02
申请号：US16489711
申请日：2018-03-12
Applicant: Nidec Tosok Corporation
Inventor： Yoshiyuki KOBAYASHI , Koji HIGUCHI , Shigehiro KATAOKA
Abstract: An oil pump includes a motor including a shaft disposed along a center axis, a rotor rotating around the shaft, a stator disposed to face the rotor, a housing accommodating the rotor and the stator, and a pump. The pump includes a pump rotor rotating together with the shaft, and a pump housing including an accommodating portion that accommodates the pump rotor. The pump housing includes a suction port that suctions in oil, a discharge port that discharges oil, and a pressure sensor that detects hydraulic pressure of oil in a partial flow passage allowing communication between the discharge port and the accommodating portion. The pressure sensor is disposed outside the housing of the motor, and the housing includes a wall that blocks electromagnetic waves.
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Patent Agency Ranking
公开(公告)号：US20200003209A1
公开(公告)日：2020-01-02
申请号：US16489710
申请日：2018-03-12
Applicant: Nidec Tosok Corporation
Inventor： Takamitsu ETO , Yoshiyuki KOBAYASHI , Koji HIGUCHI , Shigehiro KATAOKA
Abstract: An oil pump includes a motor including a shaft disposed along a central axis extending in an axial direction, a rotor rotatable around the shaft, a stator disposed to face the rotor, a housing that accommodates the rotor and the stator, a pump including a pump rotor rotatable together with the shaft to suction and discharge oil, and a pump housing including an accommodation portion that accommodates the pump rotor. The pump housing includes an intake port through which the oil is suctioned, a discharge port through which the oil is discharged, and a pressure sensor disposed between the discharge port and the accommodation portion.
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公开(公告)号：US20190271309A1
公开(公告)日：2019-09-05
申请号：US16320555
申请日：2017-07-24
Applicant: Nidec Tosok Corporation
Inventor： Yoshiyuki KOBAYASHI , Shigehiro KATAOKA
Abstract: An electric pump includes a motor, a pump, an electric pump case, a pressure sensor device to measure a pressure of fluid, and a circuit board. The pump includes a pump gear to rotate along with rotation of a shaft, and a pump body including a pump chamber recessed from a surface and housing the pump gear, and a through-hole with openings at two ends in an axial direction, one of the openings being opened to the pump chamber. The pressure sensor device includes a pressure sensor device body between the pump and the motor, and an electrical connection cable electrically connecting the pressure sensor device body and the circuit board. The electrical connection cable is routed from the pressure sensor device body to the circuit board inside of the electric pump case.
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公开(公告)号：US20190271307A1
公开(公告)日：2019-09-05
申请号：US16320125
申请日：2017-07-25
Applicant: NIPPON SEIKI CO., LTD. , Nidec Tosok Corporation
Inventor： Yoshihiro KAMIMURA , Yoshiyuki KOBAYASHI , Shigehiro KATAOKA
Abstract: A pressure sensor device for an electrically powered pump includes a pressure sensor that measures a pressure of a fluid inside the electrically powered pump, first and second terminals that project from the pressure sensor in a first direction extending toward one side in the horizontal direction, a third terminal that projects from the pressure sensor in a second direction extending toward another side in the horizontal direction, a fourth terminal that projects from the pressure sensor in the second direction and that is electrically connected to the second terminal; a first capacitor that is located on one side, in the horizontal direction, of the pressure sensor and that is connected between the first terminal and the second terminal, and a second capacitor that is located on another side, in the horizontal direction, of the pressure sensor and that is connected between the third terminal and the fourth terminal.
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公开(公告)号：US20190195349A1
公开(公告)日：2019-06-27
申请号：US16218501
申请日：2018-12-13
Applicant: NIDEC TOSOK CORPORATION
Inventor： Shigehiro KATAOKA , Yoshiyuki KOBAYASHI
CPC classification number: F16H61/0031 , B60W10/30 , F01M1/02 , F01M2001/0215 , F01M2001/0253 , F01M2001/0284 , F01M2001/0292
Abstract: An electric oil pump includes a motor part having a shaft; a pump part that is driven by the motor part via the shaft and discharges oil; and a control part configured to control an operation of the motor part. The motor part includes a rotor, a stator, and a motor housing in which the rotor and the stator are accommodated. The pump part includes a pump rotor attached to the shaft and a pump housing having a housing part in which the pump rotor is accommodated. The control part includes an electronic component and a board having a surface on which the electronic component is mounted. The board is disposed outside the stator in a radial direction and within a range of the motor part in the axial direction, and the surface of the board is disposed to face the stator and extends in the axial direction.
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公开(公告)号：US20190036409A1
公开(公告)日：2019-01-31
申请号：US16048378
申请日：2018-07-30
Applicant: NIDEC TOSOK CORPORATION , NIDEC CORPORATION
Inventor： Shigehiro KATAOKA , Kazuhiro HOMMA , Yoshiyuki KOBAYASHI , Hideaki UCHISE , Masato AONO , Akihiro OKITA
Abstract: A motor includes a rotor having a shaft centered on a central axis that extends in an axial direction, a stator which is disposed to face the rotor and includes a plurality of coils, a housing in which the rotor and the stator are housed, and a bus bar assembly that is disposed on one side of the shaft in the axial direction, wherein the bus bar assembly includes a plurality of bus bars that are electrically connected to the plurality of coils of the stator and a bus bar holder that holds the plurality of bus bars, and wherein at least one bus bar among the plurality of bus bars is placed on a disposition surface part provided on the bus bar holder and extends in a direction crossing the central axis.
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