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US 10,940,578 B2Granted
Induction-powered device having a load nested within a core of a multi-part bobbin, and power tool attachment and power tool comprising same
Assignee1543803 Ontario Ltd.
InventorsJon J. Leininger, Richard A. Hornung
Life of this patent
Estimating the term…
Abstract
An induction-powered device for use in an alternating magnetic field comprises: a magnetically permeable core; an electrically conductive coil surrounding the core; and an electrical load electrically connected to the coil. The coil is configured to generate a voltage when exposed to the alternating magnetic field, to power the electrical load.
Claims13
An induction-powered device for use in an alternating magnetic field, the induction-powered device comprising:
- a bobbin having a pair of opposing flanges and a magnetically permeable core therebetween, the bobbin including at least two constituent parts that connect to form the pair of opposing flanges and the core, wherein the at least two constituent parts of the bobbin comprise:
- a female bobbin having a first flange of the pair of opposing flanges and a female core portion;
- and
- a male bobbin having a second flange of the pair of opposing flanges and a male core portion for mating with the female core portion,
- wherein the male core portion and the female core portion define the core of the bobbin when mated;
- an electrically conductive coil surrounding the core;
- and
- an electrical load electrically connected to the coil and nested within the core,
- wherein the coil is configured to generate a voltage when exposed to the alternating magnetic field, to power the electrical load, and
- wherein the at least two constituent parts, when separate, permit the coil to be positioned around at least a portion of the core and, when connected, retain the coil around the core.
7 more elements
An induction-powered device for use in an alternating magnetic field, the induction-powered device comprising:
- a bobbin having a pair of opposing flanges and a magnetically permeable core therebetween, the bobbin including at least two constituent parts that connect to form the pair of opposing flanges and the core;
- an electrically conductive coil surrounding the core;
- and
- an electrical load electrically connected to the coil and nested within the core,
- wherein the coil is configured to generate a voltage when exposed to the alternating magnetic field, to power the electrical load, and
- wherein the coil comprises from 250 to 500 turns and is made of conductive wire having a diameter in the range of approximately 0.004 to 0.007 inches, and more particularly from 350 to 500 turns of conductive wire having a diameter in the range of approximately 0.004 to 0.005 inches.
3 more elements
Dependencies are inferred from the claim text.