| 摘要 |
PROBLEM TO BE SOLVED: To provide a reactor having durability and a structure capable of compaction.SOLUTION: A magnetic core 20 includes an internal core 30, at least two external cores 40, an upper core 50, and a lower core 60, that are members separate from each other. More than one magnetic paths in a reactor 1 are ensured using more than one external cores 40. Both upper core 50 and lower core 60 have planar shape, and concentration of a stress, generated due to the difference of thermal expansion coefficient, on a part of the magnetic core 20 is avoided. Excellent magnetic characteristics are obtained by providing gaps only between the internal core 30 and upper core 50 and/or the lower core 60, and bringing the external core 40 and upper core 50 and lower core 60 into contact.SELECTED DRAWING: Figure 2 |
