US4830100A
Expired / Lapsed
US
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Heat-pipe device and heat-sink device
Assignee: Nippon Aluminium Co Ltd
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Filing: 1986-11-24
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Granted: 1989-05-16
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Expires: 2006-11-24
Abstract
Abstract A heat-pipe device for transferring heat generated by a heat-generating element, having at least one heat-pipe body which is an extrudate of plate-like configuration made of aluminum or its alloy, the heat-pipe body including a planer-structure portion which has on one side thereof a flat face to which the heat-generating element is directly fixed, the heat-pipe body further including a plurality of passage-defining portions which protrude from the other side of the planer-structure portion and extend parallel to, and apart a predetermined distance from, each other, each passage-defining portion having therein a flow passage which is fluid-tightly charged with a working fluid for transferring the heat generated by the heat-generating element. Also is disclosed a heat-sink device for cooling a heat-generating element, having at least one heat-pipe body including a planer-structure portion and a plurality of passage-defining portions. The heat-sink device may further have a header pipe, and the heat-pipe body may be bent to form a box-like configuration such that the longitudinal ends of flow passages within the passage-defining portions are open in a communication passage within the header pipe. The heat-sink device may further have a first and second header pipe, and the heat-pipe body may be disposed vertical such that the flow passages run in a horizontal direction and are open in a first and second communication passages within the first and second header pipes.
Inventors
- 👤 Shuichiro Kato
- 👤 Yoshihiro Kinoshita
- 👤 Masao Kinoshita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:52
CPC Classifications
F; F28; F28D; F28D15/00; F28D15/02; F28D15/0233; F28D15/0266; F28D15/0275; F28F; F28F2200/00; F28F2200/005; F28F3/00; F28F3/12; F28F3/14; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49353
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
214 words
A heat-pipe device for transferring heat generated by a heat-generating element, comprising: at least one heat-pipe body which is an extrudate of plate-like configuration made of aluminum or its alloy, said at least one heat-pipe body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one heat-pipe body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having therein a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, and the at least one heat-pipe body including a vaporizer section to which the heat-generating element is fixed and wherein the charged working fluid is gasified, and a condenser section remote from the vaporizer section in which the gasified working fluid is fluidized, and each of said plurality of passage-defining portions having a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure portion.
Claim 2
Dependent Claim
214 words
A heat-pipe device for transferring heat generated by a heat-generating element, comprising: at least one heat-pipe body which is an extrudate of plate-like configuration made of aluminum or its alloy, said at least one heat-pipe body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one heat-pipe body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having therein a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, and the at least one heat-pipe body including a vaporizer section to which the heat-generating element is fixed and wherein the charged working fluid is gasified, and a condenser section remote from the vaporizer section in which the gasified working fluid is fluidized, and each of said plurality of passage-defining portions having a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure portion.
Claim 3
Dependent Claim
224 words
A heat-pipe device for transferring heat generated by a heat-generating element, comprising: at least one heat-pipe body which is an extrudate of plate-like configuration made of aluminum or its alloy, said at least one heat-pipe body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one heat-pipe body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having therein a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, each of said plurality of passage-defining portions having a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure portion, a first and a second header pipe which have therein a first and second communication passage, respectively, wherein each of said flow passages of said plurality of passage-defining portions is open, at longitudinal ends of the corresponding passage-defining portion, in said respective first and second communication passages of said first and second header pipes.
Claim 4
Dependent Claim
224 words
A heat-pipe device for transferring heat generated by a heat-generating element, comprising: at least one heat-pipe body which is an extrudate of plate-like configuration made of aluminum or its alloy, said at least one heat-pipe body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one heat-pipe body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having therein a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, each of said plurality of passage-defining portions having a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure portion, a first and a second header pipe which have therein a first and second communication passage, respectively, wherein each of said flow passages of said plurality of passage-defining portions is open, at longitudinal ends of the corresponding passage-defining portion, in said respective first and second communication passages of said first and second header pipes.
Claim 5
Dependent Claim
223 words
A heat-sink device for cooling a heat-generated element, comprising: at least one heat-pipe body which is an extrudate of plate-like configuration made of aluminum or its alloy, said at least one heat-pipe body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one heat-pip body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having therein a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, wherein the charged working fluid is vaporized in the vicinity of a first portion of the at least one heat-pipe body to which the heat-generating element is fixed, and that the vaporized working fluid is condensed at a second portion of the at least one heat-pipe body which is remote from said first portion, and wherein each of said plurality of passage-defining portions has a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure portion.
Claim 6
Dependent Claim
223 words
A heat-sink device for cooling a heat-generated element, comprising: at least one heat-pipe body which is an extrudate of plate-like configuration made of aluminum or its alloy, said at least one heat-pipe body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one heat-pip body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having therein a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, wherein the charged working fluid is vaporized in the vicinity of a first portion of the at least one heat-pipe body to which the heat-generating element is fixed, and that the vaporized working fluid is condensed at a second portion of the at least one heat-pipe body which is remote from said first portion, and wherein each of said plurality of passage-defining portions has a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure portion.
Claim 7
Dependent Claim
221 words
A heat-sink device for cooling a heat-generating element, comprising: at least one heat-pipe body which is an extrudate of plate-like configuration made of aluminum or its alloy, said at least one-pipe body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one heat-pipe body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having therein a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, each of said plurality of passage-defining portions having a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure portion, a first and a second header pipe which have therein a first and a second communication passage, respectively, wherein each of said flow passages of said plurality of passage-defining portions is open, at longitudinal ends of the corresponding passage-defining portion, in said respective first and second communication passages of said first and second header pipes.
Claim 8
Dependent Claim
221 words
A heat-sink device for cooling a heat-generating element, comprising: at least one heat-pipe body which is an extrudate of plate-like configuration made of aluminum or its alloy, said at least one-pipe body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one heat-pipe body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having therein a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, each of said plurality of passage-defining portions having a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure portion, a first and a second header pipe which have therein a first and a second communication passage, respectively, wherein each of said flow passages of said plurality of passage-defining portions is open, at longitudinal ends of the corresponding passage-defining portion, in said respective first and second communication passages of said first and second header pipes.
Claim 9
Dependent Claim
36 words
A heat-sink device according to claim 4, wherein said at least one heat-pipe body is bent to form a substantially box-like configuration, such that said first and second header pipes are positioned adjacent to each other.
Claim 10
Dependent Claim
225 words
A heat-transfer device for transferring heat generated by a heat-generating element, comprising: at least one extruded body which is of plate-like configuration made of aluminum or its alloy, said at least one extruded body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one extruded body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having there in a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, wherein the charged working fluid is vaporized in the vicinity of a first portion of the at least one heat-pipe body to which the heat-generating element is fixed, and that the vaporized working fluid is condenses at a second portion of the at least one heat-pipe body which is remote from said first a portion, and wherein each of said plurality of passage-defining portions has a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure.
Claim 11
Dependent Claim
225 words
A heat-transfer device for transferring heat generated by a heat-generating element, comprising: at least one extruded body which is of plate-like configuration made of aluminum or its alloy, said at least one extruded body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one extruded body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having there in a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, wherein the charged working fluid is vaporized in the vicinity of a first portion of the at least one heat-pipe body to which the heat-generating element is fixed, and that the vaporized working fluid is condenses at a second portion of the at least one heat-pipe body which is remote from said first a portion, and wherein each of said plurality of passage-defining portions has a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure.
Claim 12
Dependent Claim
51 words
A heat-transfer device according to claim 6, wherein said at least one extruded body comprises a plurality of extruded bodies, said plurality of extruded bodies being joined to each other at at least one joint portion of each extruded body which defines a transverse end thereof parallel to the passage-defining portions.
Claim 13
Dependent Claim
223 words
A heat-transfer device for transferring heat generated by a heat-generating element, comprising: at least one extruded body which is of plate-like configuration made of aluminum or its alloy, said at least one extruded body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one extruded body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having therein a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, each of said plurality of passage-defining portions having a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure portion, a first and a second header pipe which have therein a first and a second communication passage, respectively, wherein each of said flow passages of said plurality of passage-defining portions is open, at longitudinal ends of the corresponding passage-defining portion, in said respective first and second communication passages of said first and second header pipes.
Claim 14
Dependent Claim
223 words
A heat-transfer device for transferring heat generated by a heat-generating element, comprising: at least one extruded body which is of plate-like configuration made of aluminum or its alloy, said at least one extruded body including a planar-structure portion which has on one of opposite sides thereof a flat face to which said heat-generating element is directly fixed, the at least one extruded body further including a plurality of passage-defining portions which protrude from the other side of said planar-structure portion and extend parallel to each other, each passage-defining portion being spaced apart from the other passage-defining portions in a direction perpendicular to a longitudinal direction of the passage-defining portions and having therein a flow passage which is fluid-tightly charged with a working fluid for transferring said heat generated by said heat-generating element, each of said plurality of passage-defining portions having a flattened tube configuration, whereby the plurality of passage-defining portions cooperate with said planar-structure portion to define a corrugation face on the other side of the planar-structure portion, a first and a second header pipe which have therein a first and a second communication passage, respectively, wherein each of said flow passages of said plurality of passage-defining portions is open, at longitudinal ends of the corresponding passage-defining portion, in said respective first and second communication passages of said first and second header pipes.
Claim 15
Dependent Claim
23 words
A heat-transfer device according to claim 8, wherein each of said first and second header pipes are fluid-tightly sealed at opposite ends thereof.
Claim 16
Dependent Claim
35 words
A heat-transfer device according to claim 8, wherein said at least one extruded body is bent to form a substantially box-like configuration, while said first and second header pipes are positioned adjacent to each other.
Claim 17
Dependent Claim
39 words
A heat-transfer device according to claim 10, wherein said flat face of said at least one extruded body defines an external face of the heat-transfer device, said heat-generating element being fixed to said external face of the heat-transfer device.
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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) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |