Bobbin for electrical windings

Details Bobbin for electrical windings Bobbin for electrical windings

1991-06-21

1994-05-24

Picard, Leo P.

Inductor devices

Winding with terminals, taps, or coil conductor end...

336170, 336196, H01F 1510

Patent

active

053152808

ABSTRACT:
A transformer (202) has a bobbin (2) which has an inner portion (104) supporting an inner electrical winding (140) and having a magnetic core recess. The inner portion is located within an outer portion (4) supporting an outer electrical winding (40). The inner portion further has an end with a termination connected to the inner winding, an annular recess (126) in which the inner winding is situated, and a channel (132) communicating between the termination end of the inner portion and a remote end of the annular recess. The channel is positioned radially inwardly of the first annular recess and accommodates a portion of the inner winding. By providing the channel radially inwardly of the annular recess, winding wire can extend between the termination end of the inner portion and the remote end of the annular recess across the annular recess without significantly increasing the size of the inner portion and without increasing the gap between the inner and outer portions. This allows the size, weight and cost of a transformer built with the bobbin to be reduced, and improves the transformer's magnetic performance. The channel also allows layered windings terminating at the same end of the inner portion to be formed from an odd number of winding passes, reducing corona voltage breakdown effect and so prolonging the practical life of the windings. This also allows the inner portion to be wound uninterruptedly by machine without manual intervention.

REFERENCES:
patent: 3652968 (1972-03-01), Johnston et al.
patent: 3661342 (1972-05-01), Sears
patent: 4473811 (1984-09-01), Schauble
patent: 4549130 (1985-10-01), Dobberstein
patent: 4857878 (1989-08-01), Eng, Jr. et al.
patent: 4962361 (1990-10-01), Ida

Affiliated with

Also associated with

Rating

Bobbin for electrical windings does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bobbin for electrical windings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bobbin for electrical windings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1975767