US 5,142,767 AGranted

Method of manufacturing a planar coil construction

AssigneeThe B.F. Goodrich Company

InventorsLowell J. Adams, William A. Beard, Jr., Steven C. Simshauser, Norbert A. Weisend, Jr., Thomas E. Wohlwender

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Abstract

A planar coil construction, especially adapted for use in a force-producing device such as a de-icer, includes first and second sheet-like members, each defined by a continuous electrical conductor having a plurality of turns and first and second ends. The first end of the first conductor defines an electrical input to the coil, while the second end of the second conductor defines an electrical output from the coil. The second end of the first conductor and the first end of the second conductor are electrically connected. The sheet-like members are superimposed such that current flow through adjacent turns of the conductors is in the same direction. Within each sheet-like member, adjacent conductors also have current flow in the same direction. The invention includes a technique for spacing the conductors by means of a dielectric layer, and a technique for encapsulating the sheet-like members. Alternative embodiments are provided wherein different relationships among the sheet-like members are possible as they might be used for force-producing elements in a de-icer.

Claims20

Dependent claims

A method of manufacturing a planar coil construction for use in a force-producing device, comprising the steps of:

providing a first, sheet-like member defined by a first, continuous electrical conductor having a plurality of turns and first and second ends, the first end of the first conductor defining an electrical input and the second end of the first conductor defining an electrical output;
providing a second, sheet-like member defined by a second, continuous electrical conductor having a plurality of turns and first and second ends, the first end of the second conductor defining an electrical input and the second end of the second conductor defining an electrical output;
establishing an electrical connection between the second end of the first conductor and the first end of the second conductor;
disposing the first and second sheet-like members parallel to each other with selecting turns of the first electrical conductor being positioned adjacent to selected turns of the second electrical conductor such that the direction of current flow through the turns of the first conductor is substantially in the same direction as the current flow through the turns of the second conductor, wherein the step of disposing the first and second sheet-like members parallel to each other is carried out by:
providing first and second layers of two-sided tape, each layer being a size and shape to completely overlie the first and second sheet-like members;
applying the first layer of two-sided tape to a selected side of the first sheet-like member;
applying the second layer of two-sided tape to a selected side of the second sheet-like member;
providing a layer of dielectric material;
and
attaching the exposed surfaces of the first and second layers of two-sided tape to the opposite sides of the layer of dielectric material.

7 more elements

A method of manufacturing a planar coil construction for use in a force-producing device, comprising the steps of:

providing a first, sheet-like member defined by a first, continuous electrical conductor having a plurality of turns and first and second ends, the first end of the first conductor defining an electrical input and the second end of the first conductor defining an electrical output;
providing a second, sheet-like member defined by a second, continuous electrical conductor having a plurality of turns and first and second ends, the first end of the second conductor defining an electrical input and the second end of the second conductor defining an electrical output;
establishing an electrical connection between the second end of the first conductor and the first end of the second conductor;
disposing the first and second sheet-like members parallel to each other with selecting turns of the first electrical conductor being positioned adjacent to selected turns of the second electrical conductor such that the direction of current flow through the turns of the first conductor is substantially in the same direction as the current flow through the turns of the second conductor, wherein the step of disposing the first and second sheet-like members parallel to each other is carried out by:
providing first and second layers of two-sided tape, each layer being a size and shape to completely overlie the first and second sheet-like members;
applying the first layer of two-sided tape to a selected side of the first sheet-like member;
applying the second layer of two-sided tape to a selected side of the second sheet-like member;
providing first and second layers of dielectric material;
attaching the exposed surface of the first layer of two-sided tape to a selected side of the first layer of dielectric material;
attaching the exposed surface of the second layer of two-sided tape to a selected side of the second layer of dielectric material;
and
disposing the exposed surfaces of the first and second layers of dielectric material against each other.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/613,170Filed 13 Nov 1990 · division
Priority: 15 Nov 1989
Granted: 1 Sep 1992
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H01F 41/041
For manufacturing coils: printed circuit coils
B64D 15/12
De-icing or preventing icing on exterior surfaces of aircraft: by electric heating
H01F 17/0006
Fixed inductances of the signal type: printed inductances
Y10T 29/4902
Electrical device making: electromagnet, transformer or inductor