Patent EP0485205A2 successfully refreshed from Google Patents.
EP0485205A2
Expired / Lapsed
EP
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Heat sink and the producing method thereof
Assignee: Toshiba Corp
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Filing: 1991-11-06
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Granted: —
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Expires: 2011-11-06
Abstract
Abstract A heat sink (11) according to the invention comprises a multilayered body (14) prepared by laying one upon the other a plurality of heat sink fin elements (12) having pin-fin sections (17) formed by cutting a number of slits (16) through thin plates (15) of a thermally conductive material with spacers (13), each being inserted between two adjacent heat sink fin elements to separate them by a given distance. The method of preparing a heat sink (11) comprises steps of preparing heat sink fin elements by forming a number of slits and a surrounding marginal frame area in each of a first set of thermally conductive thin plates, preparing spacers by cutting out a central area of and forming a surrounding marginal frame area in each of a second set of thermally conductive thin plates having a shape same as that of the first set of thin plates, laying said heat sink fin elements and said spacers alternately one upon the other and bonding said assembled heat sink fin elements and spacers together at the outer surface or contacted areas to form a multilayered body.
Inventors
- 👤 Ko c/o Intellectual Property Div. Minakami
- 👤 Toshinori c/o Intellectual Prop. Div. Terashima
- 👤 Toshio c/o Intellectual Property Div. Maeda
- 👤 Tomiya C/O Intellectual Property Div. Sasaki
- 👤 Katsumi c/o Intellectual Property Div. Hisano
- 👤 Hideo c/o Intellectual Property Div. Iwasaki
- 👤 Koichiro c/o Intellectual Property Div. Kawano
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 01:12
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/70; H10W40/73; F; F28; F28D; F28D15/00; F28D15/02; F28D15/0266; F28D15/0275; F28F; F28F3/00; F28F3/02; H10W40/20; H10W40/22; H10W40/226; F28F2215/00; F28F2215/08
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
49 words
A head sink comprising a multilayered body (14) formed by arranging a plurality of thin head sink fin elements (12) to a multilayer structure with means (13) for separating adjacent head sink fin elements by a given distance (spacers), each of said means being inserted between two adjacent elements.
Claim 2
Dependent Claim
37 words
A head sink according to claim 1, characterized in that each of said head sink fin elements (12) is realized by forming a number of slits (16) of a given width through a thin thermally conductive plate.
Claim 3
Dependent Claim
26 words
A head sink according to claim 2, characterized in that the remaining areas (17) of the thin plate after forming said slits substantially constitute pin-shaped fins.
Claim 4
Dependent Claim
71 words
A head sink according to claim 1, characterized in that said means (13) for separating adjacent head sink fin elements by a given distance are separate spacers (13) made of a thermally conductive material or alternatively bent sections formed by bending at least part of the margins said head sink fin elements (12) or still alternatively raised sections (45) formed by cutting off lateral edges of said head sink fin elements.
Claim 5
Dependent Claim
39 words
A head sink according to claim 1, characterized in that each of said means (13, 62) for separating adjacent head sink fin elements (12) by a given distance is provided on its outer peripheral surface with recesses (61a, 62b).
Claim 6
Dependent Claim
46 words
A head sink according to claim 1, characterized in that each of said head sink fin elements (12) comprises a frame (43) made of a thermally conductive material and substantially a plurality of fine metal wires (44) arranged between two opposite lateral edges of the frame.
Claim 7
Dependent Claim
51 words
A head sink according to claim 1, characterized in that each of said head sink fin elements (12) is integrally formed with a means (13) for separating adjacent heat sink fin elements by a given distance by bonding them together to make the bonded area serve as a heat transfer plate.
Claim 8
Dependent Claim
42 words
A heat sink according to claim 2, characterized in that said means (13) for separating adjacent heat sink fin elements by a given distance are arranged along the lateral edges of the thin plates in parallel with the slits formed there through.
Claim 9
Dependent Claim
68 words
A heat sink comprising a multilayered body (14) formed by arranging a plurality of thin heat sink fin elements (12) to a multilayer structure with means (13) for separating adjacent heat sink fin elements by a given distance (spacers), each of said means being inserted between two adjacent elements, and a heat pipe (72, 74, 78) constituting a heat transfer path for conveying heat into said multilayered body.
Claim 10
Dependent Claim
39 words
A heat sink comprising a multilayered body (14j) formed by arranging a plurality of thin heat sink fin elements (12) to a multilayer structure with a heat transferring fluid guide pipe (79) arranged between adjacent heat sink fin elements.
Claim 11
Dependent Claim
96 words
A radiating apparatus comprising a ventilation duct (51) and one or more than one radiators (11), each comprising a multilayered body (14) formed by arranging a plurality of thin heat sink fin heat sinks (12) in thermally contact with a heat emitting body (52) within said ventilation duct to allow fluid coolant running through said ventilation duct without significantly obstructing the flow of the coolant and to form a multilayer structure with means (13) for separating adjacent heat sink fin elements by a given distance (spacers), each of said means being inserted between two adjacent elements.
Claim 12
Dependent Claim
32 words
A radiating apparatus according to claim 11, characterized in that the wall of said ventilation duct (51) is partly or entirely formed by a supporting body for supporting said heat emitting body.
Claim 13
Independent Claim
71 words
A method of manufacturing a heat sink comprising steps of: preparing heat sink fin elements by forming a number of slits in each of a plurality of thermally conductive thin plates; laying said plurality of heat sink fin elements one upon the other with a spacer element inserted between any two adjacent fin elements; and bonding said heat sink fin elements and said spacer elements together to form a multilayered body.
Claim 14
Dependent Claim
46 words
A method of manufacturing a heat sink according to claim 13, characterized in that said step of preparing heat sink fin elements comprises a step of forming bent sections along at least part of the lateral edges of said thin plates to be used as spacers.
Claim 15
Independent Claim
115 words
A method of manufacturing a heat sink comprising steps of: preparing heat sink fin elements by forming a number of slits and a surrounding marginal frame area in each of a first set of thermally conductive thin plates; preparing spacers by cutting out a central area of and forming a surrounding marginal frame area in each of a second set of thermally conductive thin plates having a shape same as that of the first set of thin plates; laying said heat sink fin elements and said spacers alternately one upon the other; and bonding said assembled heat sink fin elements and spacers together at the outer surface or contacted areas to form a multilayered body.
Claim 16
Independent Claim
95 words
A method of manufacturing a heat sink comprising steps of: preparing heat sink fin elements by forming a number of slits in each of a plurality of thermally conductive thin plates; laying said heat sink fin elements one upon the other with one or more than one ribbons of bonding agent or having a bonding agent applied on opposite sides inserted between any two adjacent heat sink fin elements; and forming a multilayered body by heating the assembled heat sink fin elements to melt the bonding agent and bond them together with the bonding agent.
Claim 17
Independent Claim
81 words
A method of manufacturing a heat sink comprising steps of: preparing heat sink fin elements by forming a number of slits in each of a plurality of thermally conductive thin plates at least partly clad with a layer of bonding agent of a given thickness; laying said heat sink fin elements one upon the other; and forming a multilayered body by heating the assembled heat sink fin elements to melt the bonding agent and bond them together with the bonding agent.
References Cited (Backward Citations)
No citation records indexed.
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