Inductor devices – Core surrounding linear conductor
Patent
1988-02-05
1989-01-10
Kozma, Thomas J.
Inductor devices
Core surrounding linear conductor
296021, 333 12, 336192, 361405, H01F 1706, H01F 1510, H01F 4102
Patent
active
047976470
ABSTRACT:
An inductor suitable for use as a noise filter and a method for manufacturing the inductor. The inductor comprises a combination of a U-like-shaped lead wire comprising a head and a pair of legs bent from both ends thereof and extending opposite to each other with tubular magnetic material cores insertably fixed to both the legs respectively, the lead wire forming between one ends of the magnetic material cores and the head exposed portions where parts of the lead wire are exposed, and at the legs at the other end sides of the cores arcuate portions which absorb impact applied to the lead wire respectively.
The manufacturing method for the inductor comprises the processes of inserting the magnetic material cores onto both legs of the lead wire, forming the arcuate portions at both the legs at the free end sides thereof respectively, dipping the lead wire into a liquid adhesive keeping the head of lead wire below, and taking-up the lead wire out of the liquid adhesive to dispose the cores to be retained by the arcuate portions and dry and cure the liquid adhesive to fix the cores to both the legs, the processes being carried out in the order; and forms the exposed portions at the legs between the head and the magnetic material cores, and arcuate portions at the legs at the free end sides thereof adjacent to the cores.
REFERENCES:
patent: 2754486 (1956-07-01), Hathorn
patent: 3162721 (1964-12-01), Rayburn
Okubo Akira
Sasaki Ken-ichi
Kozma Thomas J.
Murata Manufacturing Co. Ltd.
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