Patent ID: 11959944
Assignee: DENSO CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 19:
20. A current sensor comprising:
an electrical-conduction member through which a measurement current to be measured flows;
a magnetoelectric converter that converts a measurement magnetic field caused by a flow of the measurement current into an electric signal; and
a shield that restricts an electromagnetic noise into the magnetoelectric converter, wherein
the shield includes a first shield and a second shield each having a plate shape, the first shield and the second shield being arranged such that surfaces are opposed to and spaced away from each other,
a part of the electrical-conduction member and the magnetoelectric converter are located between the surface of the first shield and the surface of the second shield,
the part of the electrical-conduction member located between the first shield and the second shield extends in an extension direction that is along the surface of the second shield,
the second shield has two sides opposite in a lateral direction perpendicular to the extension direction, and
at least one of the two sides has an extending part extending toward the first shield, and a dimension of the at least one of the two sides including the one extending part in a thickness direction of the second shield is different along the extension direction so that the dimension is shorter at a position corresponding to the magnetoelectric converter in the lateral direction than at a position without corresponding to the magnetoelectric converter in the lateral direction, the thickness direction being perpendicular to the extension direction and the lateral direction.