Toroidal printed coil
First Claim
1. A toroidal printed coil comprising:
- an insulating substrate having an annular portion, a connection portion, a center hole formed in said annular portion, a base portion, and a C-shaped annular hole arranged such that said annular portion is formed between said center hole and said C-shaped annular hole, and such that said annular portion is connected to said base portion by said connection portion; and
a conductor film strip formed around said annular portion of said insulating substrate in a helical manner with respect to an annular axis of said annular portion so as to form conductor film on a front surface, a rear surface, an inner surface, and an outer surface of said annular portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A toroidal printed coil includes a plurality of annular holes (2) and a plurality of center holes (3) surrounded by the annular holes (2) in an insulating substrate (1). A plurality of annular juts (4), each comprising a portion surrounded by the annular hole (2) and the center hole (3), are formed. A printed coil sheet having a plurality of toroidal printed coils, in which a conductor film (6) is spirally formed at front-and-rear surfaces and side surfaces of annular portions (5) of the annular juts (4) with each annular portion taken as an axis, is obtained. With this printed coil sheet, a plurality of toroidal printed coils (P) are obtained by cutting the insulating substrate (1) off from the individual annular juts (4).
51 Citations
5 Claims
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1. A toroidal printed coil comprising:
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an insulating substrate having an annular portion, a connection portion, a center hole formed in said annular portion, a base portion, and a C-shaped annular hole arranged such that said annular portion is formed between said center hole and said C-shaped annular hole, and such that said annular portion is connected to said base portion by said connection portion; and
a conductor film strip formed around said annular portion of said insulating substrate in a helical manner with respect to an annular axis of said annular portion so as to form conductor film on a front surface, a rear surface, an inner surface, and an outer surface of said annular portion. - View Dependent Claims (2, 3, 4, 5)
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Specification