Heat pipe

US10184729B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10184729-B2
Application numberUS-201715586419-A
CountryUS
Kind codeB2
Filing dateMay 4, 2017
Priority dateNov 17, 2014
Publication dateJan 22, 2019
Grant dateJan 22, 2019

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A heat pipe includes a container in which a corrugated portion is formed, the container having a hollow portion formed therein that is sealed, a wick structure provided on an inner peripheral surface of the hollow portion and a working fluid enclosed in the hollow portion. The wick structure has a vapor channel penetrating therethrough in a longitudinal direction of the hollow portion, the wick structure producing a capillary force. The wick structure is a sintered body of a powder metal material and projected into a crest portion of the corrugated portion. The wick structure is provided at a region in the crest portion of the corrugated portion and at a position of a trough portion of the corrugated portion.

First claim

Opening claim text (preview).

What is claimed is: 1. A heat pipe comprising: a container in which a corrugated portion is formed, the container having a hollow portion formed therein that is sealed; a wick structure provided on an inner peripheral surface of the hollow portion, the wick structure having a vapor channel penetrating therethrough in a longitudinal direction of the hollow portion, the wick structure producing a capillary force, the wick structure being a sintered body of a powder metal material and being projected into a crest portion of the corrugated portion, the wick structure being accommodated in the hollow portion with a portion of the hollow portion at a region in the crest portion of the corrugated portion, at a position of a trough portion of the corrugated portion, at a position of the heat input side end portion where the corrugated portion is not formed, and at a position of the heat output side end portion where the corrugated portion is not formed being in contact with an outer surface of the wick structure, the thickness of the wick structure at the position of the crest portion, the thickness at the position of the heat input side end portion where the corrugated portion is not formed and the thickness at the position of the heat output side end portion where the corrugated portion is not formed is greater than the thickness of the wick structure at the position of the trough portion by a size of the depth of the trough portion, and a working fluid enclosed in the hollow portion. 2. The heat pipe according to claim 1 , wherein a flattening process is applied to the container at a part or an entirety thereof in a longitudinal direction. 3. The heat pipe according to claim 1 , wherein the corrugated portion is formed in the container at a part or an entirety thereof in a longitudinal direction. 4. The heat pipe according to claim 1 , wherein the corrugated portion has a helical shape. 5. The heat pipe according to claim 1 , wherein a void portion is formed in the wick structure in the crest portion.

Assignees

Inventors

Classifications

  • Tubular elements crimped or corrugated in longitudinal section · CPC title

  • the tubes being flexible · CPC title

  • F28D15/046Primary

    characterised by the material or the construction of the capillary structure · CPC title

  • the conduits having a particular shape, e.g. non-circular cross-section, annular (F28D15/0241, F28D15/0266 take precedence) · CPC title

  • sintered · CPC title

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Frequently asked questions

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What does patent US10184729B2 cover?
A heat pipe includes a container in which a corrugated portion is formed, the container having a hollow portion formed therein that is sealed, a wick structure provided on an inner peripheral surface of the hollow portion and a working fluid enclosed in the hollow portion. The wick structure has a vapor channel penetrating therethrough in a longitudinal direction of the hollow portion, the wick…
Who is the assignee on this patent?
Furukawa Electric Co Ltd
What technology area does this patent fall under?
Primary CPC classification F28D15/046. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Jan 22 2019 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).