Transformer

Details Transformer Transformer

2007-05-22

2007-05-22

Nguyen, Tuyen T. (Department: 2832)

Inductor devices

Plural part core

Reexamination Certificate

active

11422563

ABSTRACT:
A transformer structure is disclosed. The transformer comprises a primary winding coil, plural secondary winding coils, a first winding portion, plural second winding portions, plural partition plates, a channel, and a magnetic core assembly. The first winding portion is used for winding the primary winding coil thereon, and the plural second winding portions are used for winding the secondary winding coils thereon and disposed at two sides of the first winding portion. The plural partition plates are disposed between the first winding portion and the second winding portions, respectively, and each the partition plate has a slot. The channel penetrates the first winding portion, the second winding portions and the partition plates. The magnetic core assembly comprises an I-shaped magnetic core and a U-shaped magnetic core. The I-shaped magnetic core is received in the channel and the U-shaped magnetic core has plural protrusions inserted into the slots of the partition plates. Thereby, a leakage inductance of the transformer is adjusted by a distance between the protrusions of the U-shaped magnetic core and the I-shaped magnetic core received in the channel.

REFERENCES:
patent: 2578395 (1951-12-01), Brooks
patent: 4547705 (1985-10-01), Hirayama et al.
patent: 4587506 (1986-05-01), Hoeksma
patent: 4931761 (1990-06-01), Kijima

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