Electric current sensor

Electric current sensor

The invention provides a current sensor device capable of avoiding error action of current detection caused by an external magnetic field and cutting cost. The current sensor device is magnetic core-free and is provided with a magnetic detection element detecting magnetic flux generated in a current...

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Hauptverfasser: MASAKAZU KOBAYASHI, KONGHUI YU
Format: Patent
Sprache:chi ; eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator MASAKAZU KOBAYASHI
KONGHUI YU
description The invention provides a current sensor device capable of avoiding error action of current detection caused by an external magnetic field and cutting cost. The current sensor device is magnetic core-free and is provided with a magnetic detection element detecting magnetic flux generated in a current path; and a magnetic shielding part arranged around the magnetic detecting element and shielding magnetic flux for the magnetic detection element and from the external. The magnetic shielding part is provided with a first magnetic shielding part made of a first magnetic shielding material having a first relative magnetic conducting rate and a second magnetic part made of the a second magnetic shielding material having a second magnetic conducting rate different from the first magnetic conducting rate. 本发明提供电流传感器装置，其既能够避免由外部磁场引起的电流检测的误动作又能够削减成本。该电流传感器装置是无磁芯型的，其具备：磁检测元件，其检知电流路径所产生的磁通；以及磁屏蔽部，其设置在磁检测元件的周围，屏蔽对于磁检测元件的、来自外部的磁通，磁屏蔽部具备由具有第1相对磁导率的第1磁屏蔽材料构成的第1磁屏蔽部和由具有与第1相对磁导率不同的第2相对磁导率的第2磁屏蔽材料构成的第2磁屏蔽部。
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The magnetic shielding part is provided with a first magnetic shielding part made of a first magnetic shielding material having a first relative magnetic conducting rate and a second magnetic part made of the a second magnetic shielding material having a second magnetic conducting rate different from the first magnetic conducting rate. 本发明提供电流传感器装置，其既能够避免由外部磁场引起的电流检测的误动作又能够削减成本。该电流传感器装置是无磁芯型的，其具备：磁检测元件，其检知电流路径所产生的磁通；以及磁屏蔽部，其设置在磁检测元件的周围，屏蔽对于磁检测元件的、来自外部的磁通，磁屏蔽部具备由具有第1相对磁导率的第1磁屏蔽材料构成的第1磁屏蔽部和由具有与第1相对磁导率不同的第2相对磁导率的第2磁屏蔽材料构成的第2磁屏蔽部。</description><language>chi ; eng</language><subject>MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; TESTING</subject><creationdate>2016</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20160914&amp;DB=EPODOC&amp;CC=CN&amp;NR=105938154A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20160914&amp;DB=EPODOC&amp;CC=CN&amp;NR=105938154A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MASAKAZU KOBAYASHI</creatorcontrib><creatorcontrib>KONGHUI YU</creatorcontrib><title>Electric current sensor</title><description>The invention provides a current sensor device capable of avoiding error action of current detection caused by an external magnetic field and cutting cost. 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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Electric current sensor
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