EP0032178A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Micro helix thermo capsule
Assignee: International Business Machines Corp
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Filing: 1980-11-18
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Granted: —
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Expires: 2000-11-18
Abstract
Abstract A closed two phase liquid-vapor heat transfer device is provided which is independent of orientation and requires no wick (5). A helix bellows container (10) contains a liquid coolant. Heat input at the evaporator section of the container (10) results in evaporation of the coolant. The vapor flows through the bellow and condenses on the cold end where heat is released. Coolant in the evaporator section is replenished by flow through capillary passages (14) formed by the convolution of the bellow.
Inventors
- 👤 Frank Edward Andros
- 👤 Robert John Eugene Shay
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 17:35
CPC Classifications
F; F28; F28D; F28D15/00; F28D15/02; F28D15/04; H; H10; H10W; H10W40/00; H10W40/70; H10W40/73; H10W72/00; H10W72/071; H10W72/072; H10W72/07251; H10W72/20; H10W72/851; H10W72/874; H10W72/877
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
61 words
1 . A heat transfer device with a container (10) enclosing a quantity of coolant which evaporates at the hot end of said container (10) and condenses at the cold end, characterized in that a wall of said container (10) includes at least one capillary passage (14) joining the said two ends to provide capillary coolant flow between said two ends.
Claim 2
Dependent Claim
61 words
1 . A heat transfer device with a container (10) enclosing a quantity of coolant which evaporates at the hot end of said container (10) and condenses at the cold end, characterized in that a wall of said container (10) includes at least one capillary passage (14) joining the said two ends to provide capillary coolant flow between said two ends.
Claim 3
Dependent Claim
14 words
The heat transfer device of claim 1, wherein said container (10) is a bellows.
Claim 4
Dependent Claim
20 words
The heat transfer device of claim 1, wherein said capillary passage (14) is a helical passage within said container (10).
Claim 5
Dependent Claim
31 words
The heat transfer device of claims 2 and 3, wherein said container (10) is a helix bellows and said helical capillary passage (14) is formed by the convolutions of said bellows.
Claim 6
Dependent Claim
87 words
A heat transfer device in a module containing an integrated circuit chip (11) in a module cap (16), said device comprising a container (10) enclosing a coolant which, vaporized, transfers heat from the evaporator section of said container (10) contacting said chip (11) to the condenser section of said container (10) contacting said module cap (16),characterized in that a part of said container (10) comprises a capillary passage (14) to provide return of the condensed coolant from the condenser to the evaporator section of said container (10).
Claim 7
Dependent Claim
87 words
A heat transfer device in a module containing an integrated circuit chip (11) in a module cap (16), said device comprising a container (10) enclosing a coolant which, vaporized, transfers heat from the evaporator section of said container (10) contacting said chip (11) to the condenser section of said container (10) contacting said module cap (16),characterized in that a part of said container (10) comprises a capillary passage (14) to provide return of the condensed coolant from the condenser to the evaporator section of said container (10).
Claim 8
Dependent Claim
29 words
The heat transfer device of claim 5, wherein said container (10) is a helix bellows and said capillary passage (14) is formed by the helical convolution of said bellows.
Claim 9
Dependent Claim
31 words
The heat transfer device of claim 5, wherein said helix bellows is provided with at least one solderable end for joining it to said chip (11) or said module cap (16).
Claim 10
Dependent Claim
17 words
The heat transfer device of claim 1 or 5 wherein said coolant is or comprises an alcohol.
Claim 11
Dependent Claim
23 words
The heat transfer device of claim 1 or 5, wherein said container (10) is essentially a cylinder whose inner diameter approximates its length.
References Cited (Backward Citations)
US3957107A
Cited
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