The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 20, 2025

Filed:

Oct. 10, 2022
Applicant:

Alps Alpine Co., Ltd., Tokyo, JP;

Inventors:

Keisuke Nakayama, Miyagi-ken, JP;

Takahiro Taoka, Miyagi-ken, JP;

Manabu Tamura, Miyagi-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 19/00 (2006.01); G01R 15/20 (2006.01);
U.S. Cl.
CPC ...
G01R 15/205 (2013.01); G01R 19/0092 (2013.01);
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.


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