Inductance device comprising a ferromagnetic core with an airgap

Details Inductance device comprising a ferromagnetic core with an airgap Inductance device comprising a ferromagnetic core with an airgap

1986-06-27

1988-04-12

Kozma, Thomas J.

Inductor devices

With closed core interrupted by an air gap

336198, H01F 1706, H01F 2730

Patent

active

047377550

ABSTRACT:
An inductor device having a ferromagnetic core with an airgap. The ferromagnetic core contains two U-shaped sections (1, 3) with their limbs (5, 7) directed towards each other. One pair of limbs directed towards each other is surrounded by a coil former (9) made of an electrically insulating material, on the inner surface of which is located a projecting element (13) at right angles to the longitudinal direction of the limbs. The projecting element extends between the ends of the limbs that are surrounded by the coil former and determines or defines the width of an airgap (15) between those ends. The ends of the other set of limbs pointing towards each other (5, 7) are placed directly one against the other.

REFERENCES:
patent: 2699532 (1955-01-01), Bussing
patent: 4409523 (1983-11-01), Yasumura
patent: 4587506 (1986-05-01), Hoeksma

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