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公开(公告)号：US10378922B2
公开(公告)日：2019-08-13
申请号：US15544612
申请日：2016-01-13
Applicant: DENSO CORPORATION
Inventor： Takuya Kawamura , Hirofumi Kinjou , Toru Wakimoto , Hideaki Nakayama , Masataka Yoshimura
Abstract: A rotation angle detection apparatus includes a magnet that is provided to a rotating shaft of a rotating body and rotates with the rotating shaft to generate magnetic flux and a magnetic sensor that is provided at a distance from the magnet and detects a magnetic flux interlinked with the magnetic sensor. The rotation angle detection apparatus has a magnet magnetic flux detection circuit that detects a magnet magnetic flux generated from the magnet, a disturbance magnetic flux detection circuit that detects a disturbance magnetic flux, which is a magnetic flux other than the magnet magnetic flux and is interlinked with the magnetic sensor, and a correction circuit that corrects a result of detection of the magnetic sensor based on a result of detection of the magnet magnetic flux detection circuit and a result of detection of the disturbance magnetic flux detection circuit.
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2.发明授权公开(公告)号：US11990814B2
公开(公告)日：2024-05-21
申请号：US17391510
申请日：2021-08-02
Applicant: DENSO CORPORATION
Inventor： Masataka Yoshimura
CPC classification number: H02K3/505 , H01R25/162 , H02K1/165 , H02K3/12 , H02K3/28 , H02K2203/09
Abstract: A connection unit is coupled to a coil end. The connection unit includes an insulator member. The insulator member includes a holder member and an insertion member. The insertion member is inserted into the coil end. A resin member includes a protective layer which protects a plurality of joint members. The resin member includes a bridge member which couples the insulator member and the joint member. The insertion member is a cylindrical shape. The insertion member is capable of accepting a plurality of joint members. The insertion member is capable of storing the resin member.
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公开(公告)号：US11489413B2
公开(公告)日：2022-11-01
申请号：US16800218
申请日：2020-02-25
Applicant: DENSO CORPORATION
Inventor： Takaharu Murooka , Masataka Yoshimura
Abstract: A temperature sensor in a rotating electric machine is disposed or installed on a surface of a temperature detection object. The temperature detection object, i.e., an installation portion, has a thickness. The temperature sensor has an inner case housing a detector element. The inner case is made of resin. The inner case has a thickness. A temperature detecting device has an outer case housing the temperature sensor. The outer case is made of resin. A linear expansion coefficient of the outer case is, within a certain temperature range including a threshold temperature for a protection of the rotating electric machine, is smaller than an average of linear expansion coefficients of the installation portion and the inner case.
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公开(公告)号：US10006784B2
公开(公告)日：2018-06-26
申请号：US15061297
申请日：2016-03-04
Applicant: DENSO CORPORATION
Inventor： Takuya Kawamura , Hirofumi Kinjou , Toru Wakimoto , Hideaki Nakayama , Masataka Yoshimura
IPC: G01B7/00 , G01R33/025 , G01D5/14 , G01D3/036
CPC classification number: G01D5/145 , G01D3/0365 , G01D5/24485
Abstract: A correction circuit stores data for obtaining coefficients of a relational expression indicating a relationship between a disturbance magnetic flux and a rotational angle error. Then, the coefficients are obtained from the data for obtaining the coefficients, and a detection result of a magnetic sensor is corrected based on the coefficients obtained, a relational expression, and a detection result of a disturbance magnetic flux detection circuit. Since it is possible to obtain the rotational angle error with respect to the disturbance magnetic flux from the coefficient obtained and the relational expression, it is not necessary to store the data indicating the relationship between the disturbance magnetic flux and the rotational angle error for all of the disturbance magnetic flux value in disturbance magnetic flux regions that may be applied.
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