| 主权项 |
1. A current sensor comprising:
an annular magnetic core including a gap portion formed by cutting out a portion of a circumference of the annular magnetic core; a bus bar having a detection target portion inserted through the gap portion of the annular magnetic core such that the detection target portion passes through the annular magnetic core; a magneto-electric conversion element disposed in the gap portion of the annular magnetic core, the magneto-electric conversion element being configured to detect a magnetic flux based on a current flowing through the detection target portion of the bus bar; and a case accommodating the annular magnetic core and the magneto-electric conversion element, the case having an opening portion configured such that the detection target portion of the bus bar projects from the case through the opening portion, the case including a first case segment and a second case segment being assembled with the magnetic core interposed between the first and the second case segment, wherein:
at least one of the first case segment and the second case segment is provided with the opening portion, the opening portion having a cut-out shape that is open in a direction orthogonal to a direction in which the detection target portion extends, andthe first case segment and the second case segment are assembled to each other by inserting the detection target portion into the opening portion in the direction orthogonal to the direction in which the detection target portion extends. |
