公开(公告)号：US20240110952A1

公开(公告)日：2024-04-04

申请号：US18539407

申请日：2023-12-14

Applicant: Alps Alpine Co., Ltd.

Inventor： Manabu TAMURA ,  Keisuke NAKAYAMA ,  Takahiro TAOKA

IPC: G01R15/20 ,  G01R19/00

CPC classification number: G01R15/205 ,  G01R15/207 ,  G01R19/0092

Abstract: A current sensor capable of efficiently cooling a busbar by using a cooling device includes a busbar, a shield disposed to face the busbar, a magnetic sensor disposed between the shield and the busbar, and an enclosure that integrally encases part of the busbar, the shield, and the magnetic sensor. When a side on which the busbar is disposed in the X-axis direction in which the busbar, the magnetic sensor, and the shield are arranged is defined as an X1 side, the busbar is disposed on the X1 side from the center line of the enclosure, and at least the X1 side of the enclosure is disposed to face the cooling device.

公开(公告)号：US20230111157A1

公开(公告)日：2023-04-13

申请号：US18081489

申请日：2022-12-14

Applicant: Alps Alpine Co., Ltd.

Inventor： Takahiro TAOKA ,  Chiaki UEDA ,  Manabu TAMURA

IPC: G01R15/20

Abstract: A current sensor includes a magnetic sensor configured to detect a magnetic field generated by a current to be measured flowing through a current path and a shielding member including a first shield, a second shield, and a third shield disposed away from each other. The first shield is disposed on an opposite side of the current path from the magnetic sensor in a first direction in which the magnetic sensor and the current path oppose each other and includes a first opposing surface opposing the current path. The second shield includes a second opposing surface along the first direction. The third shield includes a third opposing surface along the first direction. The second shield and the third shield are disposed such that the second opposing surface and the third opposing surface oppose each other, with the magnetic sensor and the current path sandwiched therebetween.

公开(公告)号：US20230032086A1

公开(公告)日：2023-02-02

申请号：US17962969

申请日：2022-10-10

Applicant: Alps Alpine Co., Ltd.

Inventor： Keisuke NAKAYAMA ,  Takahiro TAOKA ,  Manabu TAMURA

IPC: G01R15/20 ,  G01R19/00

Abstract: A current sensor according to the present invention includes a bus bar through which a measuring current flows; a nut with which the bus bar and an external terminal are brought into contact with and fastened to each other; a magnetic sensor capable of detecting a magnetic field generated when a current flows through the bus bar; a case member having a housing area in which the magnetic sensor is allowed to be housed, the case member sealing the bus bar and the nut inside; and a cover member provided over the housing area. The case member has an open part in which a portion of the nut is exposed. The open part is covered by an insulative protective member. Therefore, shavings generated when a bolt for fastening an external terminal is screwed into the nut are prevented from dropping to the outside of the current sensor.