Metal working – Method of mechanical manufacture – Electrical device making
Patent
1980-04-25
1982-07-20
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
29596, 29832, 310 68R, 318254, H01F 4102
Patent
active
043398758
ABSTRACT:
A Hall generator flexibly held in an aperture of a circuit plate by its contact strips is pressed between a perpendicular elongated flux concentrator with a tapered nose and the center strip of a somewhat resilient flat flux concentrator. A mounting sleeve provides for force-fitting the elongated flux concentrator and for mounting the two flux concentrators in fixed position on the circuit plate on opposite sides thereof. After the elongated flux concentrator is pressed into a position for flushly clamping the Hall generator under the spring effect of at least the flat flux concentrator, the elongated flux concentrator is permanently set with a little adhesive around its upper periphery to insure continuance of the clamping force. The two flux concentrators come quite close to appropriate portions of an external rotor of a brushless d.c. motor.
REFERENCES:
patent: 4099104 (1978-07-01), Muller
Hall Carl E.
Papst-Motoren KG
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