REACTOR, CONVERTER, AND POWER CONVERTER APPARATUS

摘要

A reactor 1A of the present invention includes a sleeve-like coil 2, a magnetic core 3A having an inner core portion 31 disposed inside the coil 2 and an outer core portion 32A disposed outside the coil 2 to form a closed magnetic path with the inner core portion 31, and a case 4 storing the coil 2 and the magnetic core 3A. The case 4 is made of non-magnetic metal such as aluminum, and structured by a pair of bottomed sleeve-like bottomed case pieces 41 and 42. The outer core portion 32A is a mold product (a hardened mold product) of a mixture of magnetic powder and resin, and integrally molded with the bottomed case pieces 41 and 42. Since the case 4 and the outer core portion 32A are integrally molded, they exhibit excellent adhesion, and consequently, the heat dissipating characteristic of the reactor 1A can be enhanced. Further, since the case 4 and the outer core portion 32A are integrally molded, excellent assemblability is exhibited, and consequently, excellent productivity is also achieved.

主权项

1. A reactor comprising:
a sleeve-like coil; a magnetic core that has an inner core portion disposed inside the coil and an outer core portion disposed outside the coil, the outer core portion forming a closed magnetic path with the inner core portion; and a case that stores the coil and the magnetic core, wherein the case is structured by a combination of a plurality of divided case pieces made of a non-magnetic metal, two of the plurality of divided case pieces are each a bottomed sleeve-like bottomed case piece, the outer core portion is a mold product of a mixture of magnetic powder and resin, and the outer core portion includes integrated mold products respectively integrally molded with the bottomed case pieces.