# US 6,293,332 B2 · Structure of a super-thin heat plate

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- Number: US 6,293,332 B2
- Document ID: US6293332B2
- Status: Granted
- Kind: B2
- Application number: 09/281,777
- Filed: 1999-03-31
- Published: 2001-06-14
- Granted: 2001-09-25
- Earliest claimed: 1999-03-31
- Inventors: Jia Hao Li
- Web page: https://patentgrep.com/patent/US6293332B2

## CPC

- F28D 15/0233: {the conduits having a particular shape, e.g. non-circular cross-section, annular (F28D15/0241, F28D15/0266 take precedence)}
- F28D 9/0062: {the conduits for one heat-exchange medium being formed by spaced plates with inserted elements (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence)}
- F28D 15/046: {characterised by the material or the construction of the capillary structure}
- Y10T 29/49353: Heat pipe device making
- F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A structure of a super-thin heat plate comprising surrounding bodies having a thin plate shape and supporting body is disclosed. Each supporting body have function of capillarity and is enclosed within the surrounding bodies. The surrounding bodies and the supporting body are connected by a plurality of welding spots, and the edges are properly sealed. The supporting body is distributed uniformly by a whole web structure. Thus, the heat plate wick structure is very stable with a preferred performance of heat transfer and can be finished easily. In mass production, the structure still has a high stability.

## Claims

### Claim 1

A structure of a super-thin heat plate comprising a pair of surrounding bodies having planar surfaces disposed one above the other and a supporting body sandwiched between said pair of surrounding bodies, each of said surrounding bodies being formed by a thin plate-shaped member, said supporting body being formed by a plate-shaped member having a pair of opposing planar surfaces respectively disposed in contiguous relationship with said planar surfaces of said surrounding bodies, said supporting body having a plurality of openings formed therethrough and enclosed by said surrounding bodies to respectively define a plurality of capillaries, said surrounding bodies and said supporting body being connected together by a plurality of welding spots, and edges of said heat plate being sealed, each of said plurality of openings of said supporting body being circumscribed by an edge portion having a wick structure defined by a plurality of holes formed therein.

### Claim 2

A structure of a super-thin heat plate comprising a pair of surrounding bodies each having a thin plate shape, at least one plate supporting body formed by a metal plate enclosed between the pair of surrounding bodies, and a plurality of elongated blanking holes formed through the supporting body by blanking, an edge of each blanking hole being provided with a wick structure having a plurality of concave holes, the surrounding bodies and the supporting body being connected by a plurality of spot welds, and peripheral edges of the surrounding bodies being sealed.