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1. EP2530474 - ELECTRIC CURRENT DETECTOR AND CORE COMPONENT USED FOR SAME

Office
European Patent Office
Application Number 10844661
Application Date 21.10.2010
Publication Number 2530474
Publication Date 05.12.2012
Publication Kind B1
IPC
G01R 15/20
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
15Details of measuring arrangements of the types provided for in groups G01R17/-G01R29/, G01R33/-G01R33/26176
14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
20using galvano-magnetic devices, e.g. Hall-effect devices
CPC
G01R 15/202
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
15Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00 and G01R33/00 - G01R35/00
14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
20using galvano-magnetic devices, e.g. Hall-effect devices ; , i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
202using Hall-effect devices
G01R 15/207
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
15Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00 and G01R33/00 - G01R35/00
14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
20using galvano-magnetic devices, e.g. Hall-effect devices ; , i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
207Constructional details independent of the type of device used
Y10T 29/4998
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
29Metal working
49Method of mechanical manufacture
4998Combined manufacture including applying or shaping of fluent material
G01R 15/20
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
15Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00 and G01R33/00 - G01R35/00
14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
20using galvano-magnetic devices, e.g. Hall-effect devices ; , i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
Applicants SHT CORP LTD
Inventors YOSHIMORI HITOSHI
YOSHIMORI TAKASHI
Designated States
Priority Data 2010016117 28.01.2010 JP
Title
(DE) STROMDETEKTOR UND KERNKOMPONENTE DAFÜR
(EN) ELECTRIC CURRENT DETECTOR AND CORE COMPONENT USED FOR SAME
(FR) DÉTECTEUR DE COURANT, ET COMPOSANT DE NOYAU MIS EN OEUVRE DANS CELUI-CI
Abstract
(EN) In an electric current detector according to the present invention, an annular core 2 having a magnetic gap G and a Hall element 41 which is located in the magnetic gap of the core 2 and detects a magnitude of an electric current passing through the core 2 are arranged in an outer case 1. Here, in the core 2, a mold resin portion 3 which covers a surface of the core 2 over part of an overall length along a magnetic path thereof is molded at one or a plurality of portions along the magnetic path to configure an integral core component, the core component being fixed into the outer case 1 in a state where a surface of the mold resin portion 3 makes contact with an inner surface of the outer case 1.
(FR) L'invention concerne un détecteur de courant dans lequel un noyau (2) de forme annulaire et possédant un espace magnétique (G), et un élément à effet Hall (41) positionné à l'intérieur de l'espace magnétique (G) du noyau (2) et détectant la grandeur d'un courant électrique qui traverse le noyau (2), sont installés à l'intérieur d'un boîtier extérieur (1). Dans le noyau (2), une partie en résine moulée (3) qui couvre la surface du noyau (2) sur une portion de l'ensemble de la longueur le long d'un circuit magnétique, est formée en un ou plusieurs endroits le long du circuit magnétique. Un composant de noyau est ainsi configuré d'un seul tenant. Ce composant de noyau est fixé dans la partie interne du boîtier extérieur (1) dans un état dans lequel la surface de la partie en résine moulée (3) est en contact avec la face interne du boîtier extérieur (1).