REACTOR

• Main Authors: SUZUKI KOTARO, ENOMOTO SHINICHI
• Format: Patent
• Language: English; Japanese
• Published: 13.04.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

PROBLEM TO BE SOLVED: To provide a reactor of good product performance capable of suppressing generation of air pool and ensuring insulation reliability while providing an opening for exposing the core bottom.SOLUTION: A reactor includes a reactor body 1, and a case 4 for accommodating the reactor body 1 with a gap. The reactor body 1 includes an annular core 10 consisting of a power magnetic core, a resin member 2 covering the periphery of the annular core 10, and a coil 5 attached to the outer periphery of a resin member 2 so as to cover the periphery of a part of the annular core 10. The resin member 2 has an edge coating 25 covering the edge of the annular core 10, and an opening 24 located on the outside of the coil 5, and exposing the bottom of the annular core 10. The edge coating 25 is provided with a notch 26 interconnecting the opening 24 and the gap between the reactor body and the wall of the case.SELECTED DRAWING: Figure 4 【課題】コア底面を露出させる開口部を設けつつも、空気溜まりの発生を抑止し、かつ、絶縁信頼性を確保できる、製品性能の良好なリアクトルを提供する。【解決手段】リアクトル本体１と、リアクトル本体１を隙間を空けて収容するケース４と、を備え、リアクトル本体１は、圧粉磁心からなる環状コア１０と、環状コア１０の周囲を被覆する樹脂部材２と、環状コア１０の一部の周囲を覆うように樹脂部材２の外周に装着されたコイル５と、を備える。樹脂部材２は、環状コア１０の縁を覆う縁被覆部２５と、コイル５の外部に位置し、環状コア１０の底面を露出させる開口部２４と、を有し、縁被覆部２５には、開口部２４と、前記リアクトル本体と前記ケースの壁との間の隙間とを連通させる切欠き部２６を設ける。【選択図】図４