Title:
CURRENT SENSOR
Document Type and Number:
Japanese Patent JP2019164075
Kind Code:
A
Abstract:
To provide a current sensor which minimizes reduction in target current sensing accuracy.SOLUTION: A current sensor is provided, comprising a conductive member 30 through which a target current flows, a magnetoelectric conversion unit 25 for converting a measured magnetic field to an electric signal, and a shield 40 for suppressing electromagnetic noise entering the magnetoelectric conversion unit. The shield consists of a first shield 41 and a second shield 42. A portion of the conductive member and the magnetoelectric conversion unit are located between one surface of the first shield and one surface of the second shield. At least either of the first shield and the second shield has magnetic permeability along the one surface in a lateral direction perpendicular to an extending direction of the conductive member, which exhibits higher anisotropy than magnetic permeability in the extending direction.SELECTED DRAWING: Figure 37
Inventors:
ESAKA TAKUMA
SASAKI AKITO
MIWA HIROAKI
SASAKI AKITO
MIWA HIROAKI
Application Number:
JP2018052958A
Publication Date:
September 26, 2019
Filing Date:
March 20, 2018
Export Citation:
Assignee:
DENSO CORP
International Classes:
G01R15/20
Domestic Patent References:
| JP2015194472A | 2015-11-05 | |||
| JPH0529199U | 1993-04-16 | |||
| JP2015135288A | 2015-07-27 | |||
| JP2017227617A | 2017-12-28 | |||
| JPH07283584A | 1995-10-27 |
Foreign References:
| US20120270072A1 | 2012-10-25 |
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo
Taihei Nonobe
Takanori Kubo