公开(公告)号：US10315527B2

公开(公告)日：2019-06-11

申请号：US15434600

申请日：2017-02-16

申请人： IHI CORPORATION

发明人： Susumu Tokura ,  Masakazu Hara ,  Kentarou Furiya ,  Jun Araki

IPC分类号： H01F27/42 ,  H01F38/00 ,  B60L11/18 ,  H02J50/90 ,  H02J50/12 ,  H01F38/14 ,  H02J7/02 ,  H01F27/36 ,  B60L53/12

摘要： A power reception coil device is a power reception coil device attached to a movable body, for wirelessly receiving power from a power transmission coil device, and includes a power reception coil portion including a conductive wire, and a nonmagnetic body disposed between the movable body and the power reception coil portion. The nonmagnetic body includes a first overhang protruding in a first direction outwardly from one end portion of a region onto which the power reception coil portion is projected in a second direction. The first direction is orthogonal to the second direction in which the power reception coil device opposes the power transmission coil device. The first overhang is longer than or equal to a maximum permissible misalignment permissible between the power reception coil portion and a power transmission coil portion of the power transmission coil device.

公开(公告)号：US10608477B2

公开(公告)日：2020-03-31

申请号：US15543055

申请日：2016-01-14

申请人： IHI CORPORATION

发明人： Atsushi Asano ,  Kentarou Furiya ,  Jun Araki ,  Masahiko Goto

IPC分类号： H02J50/60 ,  H02J7/00 ,  H02J50/00 ,  B60L53/12 ,  B60L53/30 ,  B60L53/124 ,  H02J50/12 ,  H01F38/14 ,  H02J7/02

摘要： A foreign object detection device for a coil device including a second coil to transmit power to a first coil wirelessly or receive power from the first coil wirelessly including: a foreign object detection coil configured to be located between the first coil and the second coil; and a cover configured to cover an upper portion of the foreign object detection coil, wherein a top surface of the cover includes at least one inclined surface inclined relative to a coil plane of the second coil, and the inclined surface is inclined downward from a low sensitivity region where detection sensitivity of the foreign object detection coil is relatively lower to a high sensitivity region where the detection sensitivity of the foreign object detection coil is relatively higher.

公开(公告)号：US10446316B2

公开(公告)日：2019-10-15

申请号：US15387842

申请日：2016-12-22

申请人： IHI CORPORATION

发明人： Kentarou Furiya ,  Susumu Tokura ,  Masakazu Hara ,  Jun Araki

IPC分类号： H01F38/14 ,  H01F21/02 ,  H01F21/10 ,  H01F27/36 ,  H01F29/12 ,  B60L53/12 ,  H02J50/12

摘要： A coil device includes a first coil portion which faces a second coil portion of another coil device and has a conductive wire, and at least one non-magnetic member disposed on an opposite side from a side facing the second coil portion. The non-magnetic member includes an eddy current interrupter for changing a state of an eddy current formed in the non-magnetic member by interrupting a portion of the eddy current.

公开(公告)号：US10933759B2

公开(公告)日：2021-03-02

申请号：US16799442

申请日：2020-02-24

申请人： IHI CORPORATION

发明人： Atsushi Asano ,  Kentarou Furiya ,  Jun Araki

IPC分类号： H02J50/00 ,  H02J50/60 ,  B60L53/124 ,  H02J7/00 ,  B60L53/30 ,  B60L53/12 ,  H02J50/12 ,  H01F38/14 ,  H02J7/02

摘要： A foreign object detection device for a coil device including a second coil to transmit power to a first coil wirelessly or receive power from the first coil wirelessly including: a foreign object detection coil configured to be located between the first coil and the second coil; and a cover configured to cover an upper portion of the foreign object detection coil, wherein a top surface of the cover includes at least one inclined surface inclined relative to a coil plane of the second coil, and the inclined surface is inclined downward from a low sensitivity region where detection sensitivity of the foreign object detection coil is relatively lower to a high sensitivity region where the detection sensitivity of the foreign object detection coil is relatively higher.

公开(公告)号：US10726989B2

公开(公告)日：2020-07-28

申请号：US15775174

申请日：2016-10-14

申请人： IHI Corporation

发明人： Kentarou Furiya ,  Susumu Tokura ,  Kenji Nishimura ,  Jun Araki ,  Hideki Nagano

IPC分类号： H01F27/24 ,  H01F27/28 ,  H02J50/10 ,  H01F38/14 ,  H01F5/00 ,  H01F27/36 ,  H01F27/38

摘要： A power transmission coil device includes a first helical coil having a first conductive wire forming a helical shape around an axis, and a second helical coil having a second conductive wire forming a helical shape around the axis, in which the first helical coil is electrically connected in parallel to the second helical coil, and the first conductive wire and the second conductive wire arranged along a direction of the axis.

公开(公告)号：US10673276B2

公开(公告)日：2020-06-02

申请号：US15584326

申请日：2017-05-02

申请人： IHI CORPORATION

发明人： Susumu Tokura ,  Masakazu Hara ,  Kentarou Furiya ,  Jun Araki

IPC分类号： H01F27/36 ,  H02J50/10 ,  B60L5/00 ,  H01F38/14 ,  H01F27/38 ,  H01F3/14 ,  B60L50/50 ,  H02J7/00 ,  H01F37/00 ,  B60M7/00

摘要： Provided is a first coil device that faces a second coil device in a facing direction, and wirelessly transmits or receives power, the first coil device including a first coil portion, and a first auxiliary magnetic member provided adjacent to the first coil portion in a first direction orthogonal to the facing direction. The first auxiliary magnetic member is configured to be closer to the second coil device with increasing distance in the first direction from the first coil portion.