| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an annular reactor core and a reactor that are configured by using a plurality of gap structures comprising a laminate of soft-magnetic ribbons, wherein the shapes of each magnetic core are optimized, and the increase in a copper loss is suppressed as much as possible. <P>SOLUTION: The annular reactor core comprises: two core joints 5 facing each other; and a plurality of core legs 6 each arranged between the core joints 5. The core joints 5 and the core legs 6 are a laminate of the soft magnetic ribbons. The core joints 5 each have protrusions 2 directed toward the core leg 6. The core leg 6 is configured by comprising: gaps formed between the core joints 5; and n core blocks (n is an integer of n≥1). The ratio A/B of the length A of the protrusions of the core joints 5 to the average length B of core blocks 3 in a magnetic path direction is≥0.2 and≤2.0. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
