Magnetic circuit null for electric current - magnetic flux conversion

摘要

PROBLEM TO BE SOLVED: To easily perform the winding operation of a current wire to a magnetic circuit for current-to-magnetic flux conversion and to reduce the number of kinds of components. ;SOLUTION: This magnetic circuit for current-to-magnetic flux conversion is formed of a three-legged yoke constituted by bending a magnetic plate material, and the magnetic circuit is provided with a gap in which a magnetic sensor is inserted into its central leg part. The tripod yoke 1 is formed in such a way that a pair of divided yokes 2, 2' in the same shape are assembled alternately. Every divided yoke has a shape in which window parts 5, 5' are opened in a state that a current wire can be inserted. In a state that the pair of divided yokes are assembled, central leg parts 7, 8 in the pair of divided yokes are situated so as to make a space, and the gap 9 is formed.;COPYRIGHT: (C)2000,JPO