Multilayered electromagnetic assembly
First Claim
1. A multilayered electromagnetic assembly, the electromagnetic assembly comprising:
- a plurality of substantially planar substrate layers, each substrate layer having a cutaway portion;
an insulated electrically conductive material arranged in a spiral configuration on at least two of the substrate layers, the spiral configuration formed between a position adjacent the cutaway portion to a position adjacent the edge of the substrate layer, the electrically conductive material being formed substantially on and/or partially recessed or beneath the surface of the substrate layer, the spiral configurations having first and second electrical contacts that are operable to pass electric current to electrical contacts of spiral configurations on other substrate layers; and
a ferromagnetic core, located through the cutaway portions of the substrate layers;
wherein the substrate layers may be stacked and an electrical current may be passed sequentially through the two or more spiral configurations, thereby generating a magnetic field in the core.
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Abstract
A multilayered electromagnetic assembly. The assembly has a plurality of substantially planar substrate layers, each substrate layer having a cutaway portion. An insulated electrically conductive material is provided, arranged in a spiral configuration on at least two of the substrate layers. The spiral configuration is formed from adjacent the cutaway portion to the edges of the substrate layer. The electrically conductive material is formed substantially on and/or partially recessed or beneath the surface of the substrate layer. The spiral configurations has first and second electrical contacts that are operable to pass electric current to electrical contacts of spiral configurations on other substrate layers. A ferromagnetic core is located through the cutaway portions of the substrate layers. The substrate layers are stacked and an electrical current is passed sequentially through the two or more spiral configurations, thereby generating a magnetic field in the core.
17 Citations
17 Claims
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1. A multilayered electromagnetic assembly, the electromagnetic assembly comprising:
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a plurality of substantially planar substrate layers, each substrate layer having a cutaway portion; an insulated electrically conductive material arranged in a spiral configuration on at least two of the substrate layers, the spiral configuration formed between a position adjacent the cutaway portion to a position adjacent the edge of the substrate layer, the electrically conductive material being formed substantially on and/or partially recessed or beneath the surface of the substrate layer, the spiral configurations having first and second electrical contacts that are operable to pass electric current to electrical contacts of spiral configurations on other substrate layers; and a ferromagnetic core, located through the cutaway portions of the substrate layers; wherein the substrate layers may be stacked and an electrical current may be passed sequentially through the two or more spiral configurations, thereby generating a magnetic field in the core. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A multilayered electromagnetic assembly, the electromagnetic assembly comprising:
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a plurality of substantially planar substrate layers, each substrate layer having a cutaway portion; one or more heat conducting layers substantially dedicated to heat conduction, being provided on one or more portions of one or more of the said planar substrate layers and/or being distinct planar layers; an insulated electrically conductive material arranged in a spiral configuration on at least two of the substrate layers, the spiral configuration formed between a position adjacent the cutaway portion to a position adjacent the edge of the substrate layer, the electrically conductive material being formed substantially on and/or partially recessed or beneath the surface of the substrate layer, the spiral configurations having first and second electrical contacts that are operable to pass electric current to electrical contacts of spiral configurations on other substrate layers; and a ferromagnetic core, located through the cutaway portions of the substrate and heat conducting layers; wherein the substrate layers may be stacked and an electrical current may be passed sequentially through the two or more coils, thereby generating a magnetic field in the core, with any internal heat generated within the electromagnetic assembly being conducted through the one or more heat conducting layers and out to at least one external surface. - View Dependent Claims (8, 9, 10)
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11. An electromagnetic assembly, comprising:
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a bottom substrate layer having a cutaway and a conductive trace spiraling around the cutaway on a bottom portion of the bottom substrate layer; a top substrate layer having a cutaway and a conductive trace spiraling around the cutaway on a top portion of the top substrate layer; one or more multilayer stacks positioned between the bottom substrate layer and the top substrate layer, each including; a lower substrate layer having a cutaway and a conductive trace spiraling around the cutaway on a top portion of the lower substrate layer; an upper substrate layer having a cutaway and a conductive trace spiraling around the cutaway on a bottom portion of the upper substrate layer; and a heat conducting layer having a cutaway and disposed between the lower substrate layer and the upper substrate layer; wherein the respective cutaways of the bottom substrate layer, the top substrate layer, and the layers of the one or more multilayer stacks are aligned relative to one another such that they collectively form a cavity for receiving a ferromagnetic core; and wherein the respective conductive traces of the bottom substrate layer, the top substrate layer, and the lower and upper substrate layers of the one or more multilayer stacks are electrically connected such that they form a continuous conductive path for the flow of electrical current. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification