公开(公告)号：US20240361358A1

公开(公告)日：2024-10-31

申请号：US18770062

申请日：2024-07-11

Applicant: Alps Alpine Co., Ltd.

Inventor： Manabu TAMURA ,  Junichi HOSOGOE ,  Keisuke NAKAYAMA

IPC: G01R15/18 ,  B29C45/14 ,  B29K705/00 ,  B29L31/34 ,  G01R19/00

CPC classification number: G01R15/18 ,  G01R19/0092 ,  B29C45/14065 ,  B29C2045/14122 ,  B29C45/14336 ,  B29K2705/00 ,  B29K2995/0008 ,  B29L2031/34

Abstract: A current sensor includes a busbar extending in a direction, a magnetic sensor facing the busbar in a direction intersecting the direction in which the busbar extends, a magnetic shield having a base that faces the busbar, at least a portion of the base facing a side of the busbar opposite to a side where the magnetic sensor is disposed, and a case having an insert-molded section in which at least a part of the magnetic shield is insert-molded. The insert-molded section has holes (first holes), and in the holes (first holes), some portions of the magnetic shield are exposed as exposure portions (first exposure portions) and the exposure portions (first exposure portions) have rust-prevention properties. Such a current sensor has the rustproofed exposure portions and thus problems caused by rusting in the exposure portions in the magnetic shield can be prevented or reduced.

公开(公告)号：US20210366633A1

公开(公告)日：2021-11-25

申请号：US17394037

申请日：2021-08-04

Applicant: Alps Alpine Co., Ltd.

Inventor： Satoshi INOMATA ,  Yasushi WATANABE ,  Junichi HOSOGOE ,  Hisashi KOMATSU ,  Hironobu ISHII

IPC: H01C10/32 ,  H01C1/01

Abstract: A variable resistor according to the present invention includes a substrate, a resistive element disposed on a first surface of the substrate, oil that coats an upper surface of the resistive element, and a slide member that slides on the upper surface of the resistive element coated with the oil, wherein an output of the variable registor changes as a position at which the slide member makes contact with the resistive element changes. The variable resistor further includes an oil repellent part that surrounds at least a part of the resistive element in plan view viewed from above the first surface of the substrate, the oil repellant part having surface free energy smaller than that of the resistive element, whereby oil can be stably held on a resistive element surface without forming irregularities on the resistive element surface.