Slot core transformers
AssigneeM-Flex Multi-Fineline Electronix, Inc.
InventorPhilip A. Harding
Life of this patent
Estimating the term…
Abstract
Slot core inductors and transformers and methods for manufacturing same including using large scale flex circuitry manufacturing methods and machinery for providing two mating halves of a transformer winding. One winding is inserted into the slot of a slot core and one winding is located proximate to the exterior wall of the slot core. These respective halves are joined together using solder pads or the like to form continuous windings through the slot and around the slotted core.
Claims24
A slot E-core transformer adapted for the mass production techniques normally used in manufacturing flex circuits comprising:
- a first flex circuit having a plurality of side-by-side spaced discrete electrical conductors with accessible electrical connection pads;
- a second flex circuit having a plurality of side-by-side spaced discrete electrical conductors with accessible electrical connection pads;
- one of said first and second flex circuits being folded to form at least three cavities;
- a two-piece slotted E-core having an E-shaped, three-legged member and a cap member, the three legs of said E-shaped member located respectively in said three cavities, said cap located over the ends of said three legs;
- said other of said first and second flex members located substantially over and proximate to an outside face of said three legs;
- and
- connections between respective connection pads on said first and second flex circuits to form continuous windings through said slotted core and around said slotted core.
A slot core transformer adapted for the mass production techniques normally used in manufacturing flex circuits and PCB's comprising:
- a first flex circuit having a plurality of side-by-side spaced discrete electrical conductors with accessible electrical connection pads;
- a second flex circuit having a plurality of side-by-side spaced discrete electrical conductors with accessible electrical connection pads;
- a slotted core having one of said flex circuits extending substantially through the slot in said core, and the other of said flex circuits proximate to an outside face of said slotted core;
- and
- connectors between respective connection pads on said first and second flex circuits to form continuous windings through said slotted core and around said slotted core.
A slot core transformer or inductor adapted for the mass production technique normally used in manufacturing flex circuits comprising:
- a first flex circuit having a series of spaced discrete electrical conductors with accessible electrical connectors;
- a second flex circuit having a series of spaced discrete electrical conductors with accessible electrical connectors;
- a slotted core having one of said flex circuits extending into the slot in said core, and the other of said flex circuits proximate to at least one outside face of said slotted core, and
- connectors between respective ones of said accessible electrical connectors in said first and second flex circuits to form continuous windings through said slotted slot and around said slotted core.
A transformer or inductor adapted for the mass production techniques normally used in manufacturing flex circuits comprising:
- first and second flex circuits having a series of spaced discrete electrical conductors with accessible electrical connectors;
- said first and second flex circuits being folded to form cavities;
- and
- a slot core having at least one face proximate to said flex circuit whereby said flex circuits forms a continuous winding around said core.
Dependencies are inferred from the claim text.