| 摘要 |
<p>The purpose of the present invention is to use a small magnetic body core and make a current detection device (1) more compact, and to prevent faults caused by excessive heat generation and vibration of a busbar. The busbar (30) for current detection has: a through section (31) that penetrates a hollow section (11) of the magnetic body core (10); and two flat plate-shaped terminal sections (32) that extend to both sides of the through section. The terminal sections (32) have a greater width and a smaller thickness than the through section (31). A busbar hole (45) that is penetrated by the terminal sections (32) of the busbar (30) for current detection is formed in an insulated case (40). The edge section of the busbar hole (45) comprises: a flat surface (451) that faces the terminal sections (32) through a gap; a plurality of protruding sections (453) that come in contact with the front and rear surfaces of the terminal sections (32) and sandwiches the terminal sections (32); and a curved surface (452) that faces the corner sections of the terminal sections (32) across a gap.</p> |
