Power inductor with internal cooling passages

US12381027B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12381027-B2
Application numberUS-202117513330-A
CountryUS
Kind codeB2
Filing dateOct 28, 2021
Priority dateOct 28, 2021
Publication dateAug 5, 2025
Grant dateAug 5, 2025

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A power inductor includes a magnetic core having first and second legs and opposing first and second curved sections, a conductor having a first coil around the first leg and a second coil around the second leg; and a fluid circuit having a first branch disposed between the first leg and the first coil and a second branch disposed between the second leg and the second coil.

First claim

Opening claim text (preview).

What is claimed is: 1. A power inductor comprising: a magnetic core defining at least one recessed channel, wherein the core includes a plurality of segments separated by spacers; first and second end caps disposed on opposing ends of the core, wherein the first end cap defines an inlet port and the second end cap defines an outlet port, and a coil wrapped around the core and cooperating with the recessed channel to define a cooling passage in fluid communication with the inlet and outlet ports, wherein at least one of the spacers defines a notch sized and shaped to match the recessed channel and aligned with the recessed channel to define a portion of the cooling passage. 2. The power inductor of claim 1 , wherein the core further defines a second recessed channel that is orthogonal to, and in fluid communication with, the recessed channel. 3. The power inductor of claim 1 , wherein the core defines a plurality of recessed channels interconnected to form a cooling circuit between the coil and the core. 4. The power inductor of claim 1 further comprising a check valve connected to the outlet port.

Assignees

Inventors

Classifications

  • H01F27/24Primary

    Magnetic cores · CPC title

  • Coils; Windings; Conductive connections · CPC title

  • including plural semiconductor devices as final control devices for a single load · CPC title

  • H01F27/12Primary

    Oil cooling · CPC title

  • against abnormal temperatures · CPC title

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Frequently asked questions

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What does patent US12381027B2 cover?
A power inductor includes a magnetic core having first and second legs and opposing first and second curved sections, a conductor having a first coil around the first leg and a second coil around the second leg; and a fluid circuit having a first branch disposed between the first leg and the first coil and a second branch disposed between the second leg and the second coil.
Who is the assignee on this patent?
Ford Global Tech Llc
What technology area does this patent fall under?
Primary CPC classification H01F27/24. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 05 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).