| 摘要 |
A reactor that is fabricated with high productivity is provided. The reactor 1 includes an annular magnetic core 11, a coil molded product 12A, and an external resin portion 13. The coil molded product 12A is disposed around an outer periphery of the magnetic core 11, the external resin portion 13 covers an outer periphery of an assembly 10 of the magnetic core 11 and the coil molded product 12A. The magnetic core 2 includes a plurality of core pieces that are combined so as to form an annular shape. The magnetic core 2 is fixed in the annular shape using the external resin portion 13 that covers the magnetic core without use of adhesive. The coil molded product 12A includes a coil 12 formed of a helically wound wire 12w and an internal resin portion 12c that maintains the coil 12 in a compressed state. Since the magnetic core 11 is formed without adhesive, a bonding step is not required. Due to use of the coil molded product 12A, the coil 12 needs not be compressed while forming the reactor 1. Thus, the reactor 1 is fabricated with high productivity.
|
