Patent ID: 8854036

Claim:
A current detecting apparatus comprising: a magnetic core formed of a magnetic material, having a first end, a second end, an inner edge, and an outer edge, the first end facing the second end and a gap portion being interposed between the first end and the second end, and the magnetic core being formed continuously so as to surround a periphery of a hollow portion of the magnetic core; a circuit board on which a magnetoelectric device configured to detect a magnetic flux in the gap portion of the magnetic core is mounted in an upright position, the circuit board including: a first portion, a second portion, and a third portion, the first portion, the second portion and the third portion of the circuit board forming a substantially triangular surrounded area and entirely surrounding the magnetoelectric device, the first portion, the second portion and the third portion of the circuit board each including: a first surface, and a second surface, the first surface opposite to the second surface, and a housing including: a container member; a lid member, the container member and the lid member having insulating properties and being assembled together, the housing being configured to accommodate the magnetic core and the circuit board and to support the magnetic core and the circuit board in a certain positional relationship, a substrate fixing portion formed in the container member outside the outer edge of the magnetic core supported by the container member, and to which the first portion of the circuit board is fixed, a container-side substrate holding portion formed in the container member so as to project therefrom, being disposed through the hollow portion of the magnetic core supported by the container member, and having a top portion coming into contact with the first surface of the second portion and the first surface of the third portion of the circuit board, and a lid-side substrate holding portion formed so as to project from the lid member, and having a top portion coming into contact at least with the second surface of the second portion and the third portion of the circuit board, and configured to, with the container-side substrate holding portion, hold the circuit board tightly.