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公开(公告)号：US20200308999A1
公开(公告)日：2020-10-01
申请号：US16790771
申请日：2020-02-14
Applicant: Nidec Tosok Corporation
Inventor： Yoshiyuki KOBAYASHI , Shigehiro KATAOKA
Abstract: In an electric oil pump, a motor includes a main body including a coil, bus bars electrically connected to lead wires of the coil, and a shaft including a portion on one side in an axial direction protruding from an end of the main body on the one side in the axial direction and connected to a pump, a control board includes a power supply input portion and a power supply output portion and is disposed in a posture in which any one of a first surface and a second surface of the control board lies in the axial direction, the power supply input portion is at an end portion of the control board on the other side in the axial direction, and bus bar terminals are disposed on one side of the main body in the axial direction.
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公开(公告)号：US20200232457A1
公开(公告)日：2020-07-23
申请号：US16486177
申请日：2018-02-23
Applicant: Nidec Tosok Corporation
Inventor： Shigehiro KATAOKA , Yoshiyuki KOBAYASHI
Abstract: A pump device includes a motor including a shaft along a central axis, a pump on one side of the motor in an axial direction and driven by the motor via the shaft to discharge oil, and an inverter circuit to drive the pump. The motor includes a housing to accommodate a rotor and a stator. The pump includes a pump rotor attached to the shaft, a pump body to accommodate the pump rotor, and a pump cover to cover an opening on one side of the pump body in the axial direction. The pump cover includes a cover extension extending from an outer edge portion of the pump cover in a radial direction and extending to the outside of a sidewall of the housing. The pump cover is provided to come into thermal contact with the inverter circuit.
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公开(公告)号：US20200217309A1
公开(公告)日：2020-07-09
申请号：US16711475
申请日：2019-12-12
Applicant: Nidec Tosok Corporation
Inventor： Shigehiro KATAOKA , Yoshiyuki KOBAYASHI
Abstract: A filter module includes an attachment attached to an attachment catch. The attachment of the filter module on the attachment catch of the electric oil pump main body to the attachment catch is fixed in a posture where an outlet port of the filter module is caused to communicate with the suction port of the electric oil pump main body.
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公开(公告)号：US20190383291A1
公开(公告)日：2019-12-19
申请号：US16484970
申请日：2018-02-23
Applicant: Nidec Tosok Corporation
Inventor： Yoshiyuki KOBAYASHI , Kazuhiro HOMMA , Koji HIGUCHI , Yosuke ITO
IPC: F04C29/04
Abstract: A pump apparatus includes a motor including a shaft rotatable around a central axis, and a pump that is positioned on one side in an axial direction thereof, is driven via the shaft, and discharges an oil. The motor includes a rotor, a stator, a housing accommodating the rotor and the stator, a wall partitioning the stator and the rotor, and a motor side discharge port to discharge an oil. The pump includes a pump rotor, a pump case accommodating the pump rotor, a pump side suction port to suction an oil, and a pump side delivery port to deliver an oil to the inside of the motor. A pump apparatus includes a first flow channel to cause an oil to flow into the pump through a pump side suction port, a second flow channel to cause an oil to flow to a stator region through the pump side delivery port, and a third flow channel to cause an oil to flow into the stator.
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公开(公告)号：US20190265120A1
公开(公告)日：2019-08-29
申请号：US16320126
申请日：2017-07-25
Applicant: Nidec Tosok Corporation
Inventor： Yoshihiro KAMIMURA , Yoshiyuki KOBAYASHI , Shigehiro KATAOKA
Abstract: A sensor case of pressure sensor device includes a sensor housing portion, a first terminal housing portion that extends from the sensor housing portion in a first direction, and a second terminal housing portion that extends from the sensor housing portion in a second direction. The first terminal housing portion includes a first upper-side opening that opens upward, and a first lower-side opening that opens downward. The second terminal housing portion includes a second upper-side opening that opens upward, and a second lower-side opening that opens downward. A first terminal part includes a first exposed portion including an upper surface exposed to outside of the first terminal housing portion through the first upper-side opening and a lower surface exposed to outside of the first terminal housing portion through the first lower-side opening. A second terminal includes a second exposed portion including an upper surface exposed to outside of the second terminal housing portion through the second upper-side opening and a lower surface exposed to outside of the second terminal housing portion through the second lower-side opening. The first exposed portion includes a first lead wire connection portion to which a first lead wire is connected. The second exposed portion includes a second lead wire connection portion to which a second lead wire is connected.
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Patent Agency Ranking
公开(公告)号：US20220320941A1
公开(公告)日：2022-10-06
申请号：US17707960
申请日：2022-03-30
Applicant: NIDEC TOSOK CORPORATION
Inventor： Shigehiro KATAOKA , Yoshiyuki KOBAYASHI
Abstract: A rotary electric machine includes a rotor, a stator, a substrate, a bus bar, a housing having a stator housing portion and a substrate housing portion, and a cover member. The substrate housing portion is located radially outside the stator housing portion. The housing has a connection hole connecting the stator housing portion and the substrate housing portion. The bus bar radially passes through the connection hole. The bus bar includes a coil connection portion electrically connected to the coil in the stator housing portion, and a substrate connection portion electrically connected to the substrate in the substrate housing portion. The bus bar is located on one side in the axial direction of the stator. The cover member has an opposing portion located on one side in the axial direction of the bus bar in the stator housing portion, and having an axial positioning portion for the bus bar.
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公开(公告)号：US20220235765A1
公开(公告)日：2022-07-28
申请号：US17577331
申请日：2022-01-17
Applicant: NIDEC TOSOK CORPORATION
Inventor： Yoshiyuki KOBAYASHI , Tomohiro SAKATA , Yuzo NAGAI , Hideo NAGAI
Abstract: 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：US20190195348A1
公开(公告)日：2019-06-27
申请号：US16218500
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. The pump part includes a pump rotor and a pump housing having a housing part. The control part includes a plurality of electronic components and a board. The motor housing has a cylindrical part in which the rotor and the stator are accommodated, a plurality of heat dissipating fins that extend from the cylindrical part, and a fin support that supports the heat dissipating fins. The heat dissipating fins are disposed at intervals in the axial direction. The fin support has an inter-fin through-hole between a pair of heat dissipating fins adjacent in the axial direction.
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公开(公告)号：US20190195347A1
公开(公告)日：2019-06-27
申请号：US16218499
申请日：2018-12-13
Applicant: NIDEC TOSOK CORPORATION
Inventor： Shigehiro KATAOKA , Yoshiyuki KOBAYASHI
CPC classification number: F16H61/0031 , F04B17/03 , F16H57/0436 , F16H57/0446 , F16H2061/0037
Abstract: An electric oil pump includes a motor part having a shaft; and a pump part that is driven by the motor part via the shaft and discharges oil. The motor part includes a rotor, a stator disposed to face the rotor, a coil provided in the stator, and a motor housing having a cylindrical part 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 motor housing includes a bearing that supports the shaft, a tubular bearing housing that holds the bearing, and a bus bar assembly connected to a coil end of the coil that extends from the stator. In this feature, the stator, the bus bar assembly, and the bearing housing are sequentially disposed from the pump part to the motor part.
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公开(公告)号：US20190036415A1
公开(公告)日：2019-01-31
申请号：US16048381
申请日：2018-07-30
Applicant: NIDEC TOSOK CORPORATION
Inventor： Shigehiro KATAOKA , Yoshiyuki KOBAYASHI , Noriyuki IKEDA
IPC: H02K5/22 , H02K7/00 , H02K7/14 , H01R13/50 , H01R27/00 , H01R12/71 , H01R13/04 , H05K5/00 , F04C2/10 , F04C15/00
Abstract: An electric oil pump includes a motor unit having a shaft centered on a central axis that extends in an axial direction of the shaft and a pump unit which is disposed on a front side of the motor unit, is driven by the motor unit, and discharges oil. The motor unit includes a rotor that is fixed on a rear side of the shaft, a stator that is disposed outside the rotor in a radial direction, a resin housing in which the rotor and the stator are housed, and a connector assembly that is disposed outside the resin housing in the radial direction. The connector assembly is integrally molded with the resin housing. The pump unit includes a pump rotor installed to the shaft that protrudes from the motor unit and a pump housing in which the pump rotor is housed.
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