CURRENT SENSOR

To provide an accurate current sensor by a simple configuration.SOLUTION: The current sensor includes: a reed switch 310; and magnetic cores 512a and 512b forming a magnetic circuit connected in series with the reed switch 310. The reed switch 310 has a round cross section, and the magnetic cores 51...

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Bibliographic Details
Main Authors SATO TAKASHI, SHISHIDO MASANORI, SATO SHINDAI, KOBAYASHI MASATO
Format Patent
LanguageEnglish
Japanese
Published 16.09.2021
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:To provide an accurate current sensor by a simple configuration.SOLUTION: The current sensor includes: a reed switch 310; and magnetic cores 512a and 512b forming a magnetic circuit connected in series with the reed switch 310. The reed switch 310 has a round cross section, and the magnetic cores 512a and 512b made of a magnetic material are in the shape of U and have a bending unit surrounding the reed switch 310 in an end part of the reed switch 310. The magnetic core 512a as a first magnetic core and the magnetic core 512b as a second magnetic core are fixed across the reed switch 310 from the vertical direction of a paper sheet.SELECTED DRAWING: Figure 1 【課題】簡単な構成で精度の高い電流センサを提供する。【解決手段】電流センサは、リードスイッチ３１０と、リードスイッチ３１０と直列の磁気回路を構成する磁性コア５１２a、５１２ｂから構成される。リードスイッチ３１０の断面は円形状であり、磁性材からなる磁性コア５１２a、５１２ｂは、コの字状で、リードスイッチ３１０の端部では、リードスイッチ３１０を囲むように湾曲部を有する。第１の磁性コアである磁性コア５１２aと、第２の磁性コアである磁性コア５１２ｂは、紙面上下方向からリードスイッチ３１０を挟み込んで固定する。【選択図】図１
Bibliography:Application Number: JP20200038784