US5331510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic equipment and computer with heat pipe
Assignee: Hitachi Ltd
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Filing: 1992-08-28
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Granted: 1994-07-19
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Expires: 2012-08-28
Abstract
Abstract An electronic equipment has heat pipes for radiating heat generated from heat generating electronic parts. The electronic parts are arranged such that electronic parts generating more heat are arranged nearer to a heat radiating portion of each heat pipe to prevent a phenomenon of dryout and radiate the heat efficiently, whereby heat generated from the electronic parts such as LSI chips can be effectively radiated and an excessive rise in temperature of the electronic parts can be suppressed. When the invention is applied to computers, the entire computer size can be reduced.
Inventors
- 👤 Katsunori Ouchi
- 👤 Atsushi Morihara
- 👤 Yoshio Naganuma
- 👤 Koji Sato
- 👤 Ryuichi Kaji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:56
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/70; H10W40/73; F; F28; F28D; F28D15/00; F28D15/02; F28D15/0275; G; G06; G06F; G06F1/00; G06F1/16; G06F1/20; G06F2200/00; G06F2200/20; G06F2200/201; H10W72/00; H10W72/071; H10W72/075; H10W72/07551; H10W72/07554; H10W72/50; H10W72/541; H10W72/547; H10W72/851; H10W72/874; H10W72/884
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
320 words
An electronic equipment comprising: a plurality of electronic parts generating different amounts of heat; at least one heat pipe having a first portion adjacent one end of said at least one heat pipe for absorbing the heat generated from said electronic parts and a second portion adjacent the other end of said at least one heat pipe for radiating the thus absorbed heat; and at least one generally flat heat transfer means disposed to cover said first portion of said at least one heat pipe; said electronic parts being arranged in heat conducting relation with said heat transfer means such that an electronic part generating a greater amount of heat is disposed on said heat transfer means at a first point relatively closer to said second portion of said at least one heat pipe than a second point and another electronic part generating a smaller amount of heat is disposed on said heat transfer means at said second point relative further from said second portion than said first point and between said first point and said one end of said at least one heat pipe, wherein the heat generated by each of said electronic parts and the distance from the other end of said at least one heat pipe to the electronic part has a relationship given by the following equation: ##EQU3## where Q i is the amount of head generated from each of said electronic parts, l 1 is a distance from the other end of said heat pipe to each of said electronic parts, Q is the amount of heat generated from any one of said electronic parts when a phenomenon of dryout of a heat transfer liquid in said heat pipe takes place, l is a distance from said other end of said heat pipe to the electronic part when the dryout takes place, and i=1 . . . n indicates the number of said electronic parts.
Claim 2
Dependent Claim
320 words
An electronic equipment comprising: a plurality of electronic parts generating different amounts of heat; at least one heat pipe having a first portion adjacent one end of said at least one heat pipe for absorbing the heat generated from said electronic parts and a second portion adjacent the other end of said at least one heat pipe for radiating the thus absorbed heat; and at least one generally flat heat transfer means disposed to cover said first portion of said at least one heat pipe; said electronic parts being arranged in heat conducting relation with said heat transfer means such that an electronic part generating a greater amount of heat is disposed on said heat transfer means at a first point relatively closer to said second portion of said at least one heat pipe than a second point and another electronic part generating a smaller amount of heat is disposed on said heat transfer means at said second point relative further from said second portion than said first point and between said first point and said one end of said at least one heat pipe, wherein the heat generated by each of said electronic parts and the distance from the other end of said at least one heat pipe to the electronic part has a relationship given by the following equation: ##EQU3## where Q i is the amount of head generated from each of said electronic parts, l 1 is a distance from the other end of said heat pipe to each of said electronic parts, Q is the amount of heat generated from any one of said electronic parts when a phenomenon of dryout of a heat transfer liquid in said heat pipe takes place, l is a distance from said other end of said heat pipe to the electronic part when the dryout takes place, and i=1 . . . n indicates the number of said electronic parts.
Claim 3
Dependent Claim
206 words
An electronic equipment comprising: a plurality of electronic parts generating different amounts of heat; at least one heat pipe having a first portion adjacent one end of said at least one heat pipe for absorbing the heat generated from said electronic parts and a second portion adjacent the other end of said at least one heat pipe for radiating the thus absorbed heat; and at least one generally flat heat transfer means disposed to cover said first portion of said at least one heat pipe; said electronic parts being arranged in heat conducting radiation with said heat transfer means such that an electronic part generating a greater amount of heat is disposed on said heat transfer means at a first point relatively closer to said second portion of said at least one heat pipe than a second point and another electronic part generating a smaller amount of heat is disposed on said heat transfer means at said second point relatively further from said second portion than said first point and between said first point and said one end of said at least one heat pipe, wherein said heat transfer means comprises a flexible heat transfer sheet and a heat receiving plate member covering said heat pipe.
Claim 4
Dependent Claim
206 words
An electronic equipment comprising: a plurality of electronic parts generating different amounts of heat; at least one heat pipe having a first portion adjacent one end of said at least one heat pipe for absorbing the heat generated from said electronic parts and a second portion adjacent the other end of said at least one heat pipe for radiating the thus absorbed heat; and at least one generally flat heat transfer means disposed to cover said first portion of said at least one heat pipe; said electronic parts being arranged in heat conducting radiation with said heat transfer means such that an electronic part generating a greater amount of heat is disposed on said heat transfer means at a first point relatively closer to said second portion of said at least one heat pipe than a second point and another electronic part generating a smaller amount of heat is disposed on said heat transfer means at said second point relatively further from said second portion than said first point and between said first point and said one end of said at least one heat pipe, wherein said heat transfer means comprises a flexible heat transfer sheet and a heat receiving plate member covering said heat pipe.
Claim 5
Dependent Claim
295 words
An electronic equipment comprising: a plurality of electronic parts generating heat; at least one heat pipe having a first portion adjacent one end of said at least one heat pipe for absorbing the heat generated from said electronic parts and a second portion adjacent the other end of said at least one heat pipe for radiating the thus absorbed heat; and at least one generally flat heat transfer means disposed to cover said first portion of said at least one heat pipe; said electronic parts being arranged on said heat transfer means such that the distance between each adjacent pair of said electronic parts is smaller at a first point of said heat transfer means relatively closer to said second portion of said at least one heat pipe than at a second point of said heat transfer means relatively further from said second portion than said first point and adjacent said one end of said at least one heat pipe, wherein the heat generated by each of said electronic parts and the distance from the other end of said at least one heat pipe to the electronic part has a relationship given by the following equation: ##EQU4## where, Q i is the amount of heat generated from each of said electronic parts, l i is a distance from the other end of said heat pipe to each of said electronic parts, Q is the amount of heat generated from any one of said electronic parts when a phenomenon of dryout of a heat transfer liquid in said heat pipe takes place, l is a distance from said other end of said heat pipe to the electronic part when the dryout takes place, and i=1 . . . n indicates the number of said electronic parts.
Claim 6
Dependent Claim
295 words
An electronic equipment comprising: a plurality of electronic parts generating heat; at least one heat pipe having a first portion adjacent one end of said at least one heat pipe for absorbing the heat generated from said electronic parts and a second portion adjacent the other end of said at least one heat pipe for radiating the thus absorbed heat; and at least one generally flat heat transfer means disposed to cover said first portion of said at least one heat pipe; said electronic parts being arranged on said heat transfer means such that the distance between each adjacent pair of said electronic parts is smaller at a first point of said heat transfer means relatively closer to said second portion of said at least one heat pipe than at a second point of said heat transfer means relatively further from said second portion than said first point and adjacent said one end of said at least one heat pipe, wherein the heat generated by each of said electronic parts and the distance from the other end of said at least one heat pipe to the electronic part has a relationship given by the following equation: ##EQU4## where, Q i is the amount of heat generated from each of said electronic parts, l i is a distance from the other end of said heat pipe to each of said electronic parts, Q is the amount of heat generated from any one of said electronic parts when a phenomenon of dryout of a heat transfer liquid in said heat pipe takes place, l is a distance from said other end of said heat pipe to the electronic part when the dryout takes place, and i=1 . . . n indicates the number of said electronic parts.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-18 | 1998-01-17 | 1998-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-18 | 2002-01-17 | 2002-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-18 | 2006-01-17 | 2006-07-19 | $7700.00 | Window Closed / Lapsed |