Patent US5381859A successfully refreshed from Google Patents.
US5381859A
Expired / Lapsed
US
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Heat sink and the producing method thereof
Assignee: Toshiba Corp
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Filing: 1993-06-07
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Granted: 1995-01-17
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Expires: 2013-06-07
Abstract
Abstract A heat sink according to the invention comprises a multilayered body prepared by laying one upon the other a plurality of heat sink fin elements having pin-fin sections formed by cutting a number of slits through thin plates of a thermally conductive material with spacers, each being inserted between two adjacent heat sink fin elements to separate them by a given distance. The method of preparing a heat sink 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 Minakami
- 👤 Toshinori Terashima
- 👤 Toshio Maeda
- 👤 Tomiya Sasaki
- 👤 Katsumi Hisano
- 👤 Hideo Iwasaki
- 👤 Koichiro Kawano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:13
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: 26
Claim 1
Independent Claim
216 words
A heat sink comprising: a plurality of heat sink elements each including a thin thermally conductive plate, each of said plurality of heat sink elements having a plurality of openings arranged in one direction to thereby form an array of fins, and said plurality of openings constituting a first group of openings through which a coolant is allowed to flow; separating means for separating adjacent heat sink elements by a predetermined distance in order to separate adjacent arrays of fins formed in each of said heat sink elements, said separating means extending in said one direction and being arranged along lateral edges of said plurality of heat sink elements, predetermined distances between said plurality of heat sink elements separated by said separating means constituting a second group of openings through which the coolant is allowed to flow from a direction other than through said first group of openings; and a connecting region formed of said lateral edges of said plurality of heat sink elements and said separating means, said connecting region being thermally connected to an electric component; whereby said electric component generates heat therefrom, and transfers the heat to said array of fins through said connecting region and then to the coolant flowing through at least one of said first and second groups of openings.
Claim 2
Dependent Claim
216 words
A heat sink comprising: a plurality of heat sink elements each including a thin thermally conductive plate, each of said plurality of heat sink elements having a plurality of openings arranged in one direction to thereby form an array of fins, and said plurality of openings constituting a first group of openings through which a coolant is allowed to flow; separating means for separating adjacent heat sink elements by a predetermined distance in order to separate adjacent arrays of fins formed in each of said heat sink elements, said separating means extending in said one direction and being arranged along lateral edges of said plurality of heat sink elements, predetermined distances between said plurality of heat sink elements separated by said separating means constituting a second group of openings through which the coolant is allowed to flow from a direction other than through said first group of openings; and a connecting region formed of said lateral edges of said plurality of heat sink elements and said separating means, said connecting region being thermally connected to an electric component; whereby said electric component generates heat therefrom, and transfers the heat to said array of fins through said connecting region and then to the coolant flowing through at least one of said first and second groups of openings.
Claim 3
Dependent Claim
16 words
The heat sink according to claim 1, wherein said plurality of openings are formed like slits.
Claim 4
Dependent Claim
21 words
The heat sink according to claim 1, wherein said plurality of openings extend in a direction perpendicular to said one direction.
Claim 5
Dependent Claim
16 words
The heat sink according to claim 1, wherein said fins include pin-shaped or needle-shaped thin fins.
Claim 6
Dependent Claim
22 words
The heat sink according to claim 1, wherein said separating means includes a thermally conductive spacer interposed between adjacent heat sink elements.
Claim 7
Dependent Claim
39 words
The heat sink according to claim 1, wherein said separating means includes a bent portion formed by bending at least a portion of each of said lateral edges of said plurality of heat sink elements at a predetermined angle.
Claim 8
Dependent Claim
33 words
The heat sink according to claim 1, wherein said separating means includes at least one projection formed at the portion of each of said lateral edges of said plurality of heat sink elements.
Claim 9
Dependent Claim
18 words
The heat sink according to claim 1, wherein said connecting region is directly connected to said electric component.
Claim 10
Dependent Claim
24 words
The heat sink according to claim 1, wherein said connecting region is connected to said electric component with a thermally conductive member interposed therebetween.
Claim 11
Dependent Claim
142 words
A heat sink comprising: a plurality of heat sink elements each including a thin thermally conductive rectangular plate, each of said plurality of heat sink elements having a plurality of openings arranged along a pair of opposing lateral edges of heat sink elements to thereby form an array of fins, and said plurality of openings constituting a first group of openings through which a coolant is allowed to flow; separating means for separating adjacent heat sink elements by a predetermined distance in order to separate adjacent arrays of fins formed in each of said heat sink elements, said separating means being arranged along said pair of lateral edges of heat sink elements; and wherein predetermined distances between said plurality of heat sink elements separated by said separating means constitute a second group of openings through which the coolant is allowed to flow.
Claim 12
Dependent Claim
142 words
A heat sink comprising: a plurality of heat sink elements each including a thin thermally conductive rectangular plate, each of said plurality of heat sink elements having a plurality of openings arranged along a pair of opposing lateral edges of heat sink elements to thereby form an array of fins, and said plurality of openings constituting a first group of openings through which a coolant is allowed to flow; separating means for separating adjacent heat sink elements by a predetermined distance in order to separate adjacent arrays of fins formed in each of said heat sink elements, said separating means being arranged along said pair of lateral edges of heat sink elements; and wherein predetermined distances between said plurality of heat sink elements separated by said separating means constitute a second group of openings through which the coolant is allowed to flow.
Claim 13
Dependent Claim
16 words
The heat sink according to claim 10, wherein said plurality of openings are formed like slits.
Claim 14
Dependent Claim
29 words
The heat sink according to claim 10, wherein said plurality of openings are arranged in a direction perpendicular to said pair of opposing lateral edges of heat sink elements.
Claim 15
Dependent Claim
16 words
The heat sink according to claim 10, wherein said fins include pin-shaped or needle-shaped thin fins.
Claim 16
Dependent Claim
22 words
The neat sink according to claim 10, wherein said separating means includes a thermally conductive spacer interposed between adjacent heat sink elements.
Claim 17
Dependent Claim
39 words
The heat sink according to claim 10, wherein said separating means includes a bent portion formed by bending at least a portion of each of said lateral edges of said plurality of heat sink elements at a predetermined angle.
Claim 18
Dependent Claim
33 words
The heat sink according to claim 10, wherein said separating means includes at least one projection formed at the portion of each of said lateral edges of said plurality of heat sink elements.
Claim 19
Dependent Claim
243 words
A heat sink comprising: a plurality of heat sink elements each including a thin thermally conductive plate, each of said plurality of heat sink elements having a plurality of openings arranged in one direction to thereby form an array of fins, said plurality of fins constituting a first group of openings through which a coolant is allowed to flow; separating means for separating adjacent heat sink elements by a predetermined distance in order to separate adjacent arrays of fins formed in each of said heat sink elements, said separating means extending in said one direction and being arranged along lateral edges of said plurality of heat sink elements, predetermined distances between said plurality of heat sink elements separated by said separating means constituting a second group of openings through which the coolant is allowed to flow from a direction other than through said first group of openings; a connecting region formed of said lateral edges of said plurality of heat sink elements and said separating means; and a thermally conductive plate thermally connected to said connecting region, said thermally conductive plate having a contact surface capable of contacting all of said connecting region, and being thermally connected to an electric component; whereby said electric component generates heat and transfers the heat to said array of fins through said connecting region and said thermally conductive plate, and then to the coolant flowing through at least one of said first and second groups of openings.
Claim 20
Dependent Claim
243 words
A heat sink comprising: a plurality of heat sink elements each including a thin thermally conductive plate, each of said plurality of heat sink elements having a plurality of openings arranged in one direction to thereby form an array of fins, said plurality of fins constituting a first group of openings through which a coolant is allowed to flow; separating means for separating adjacent heat sink elements by a predetermined distance in order to separate adjacent arrays of fins formed in each of said heat sink elements, said separating means extending in said one direction and being arranged along lateral edges of said plurality of heat sink elements, predetermined distances between said plurality of heat sink elements separated by said separating means constituting a second group of openings through which the coolant is allowed to flow from a direction other than through said first group of openings; a connecting region formed of said lateral edges of said plurality of heat sink elements and said separating means; and a thermally conductive plate thermally connected to said connecting region, said thermally conductive plate having a contact surface capable of contacting all of said connecting region, and being thermally connected to an electric component; whereby said electric component generates heat and transfers the heat to said array of fins through said connecting region and said thermally conductive plate, and then to the coolant flowing through at least one of said first and second groups of openings.
Claim 21
Dependent Claim
16 words
The heat sink according to claim 17, wherein said plurality of openings are formed like slits.
Claim 22
Dependent Claim
21 words
The heat sink according to claim 17, wherein said plurality of openings extend in a direction perpendicular to said one direction.
Claim 23
Dependent Claim
16 words
The heat sink according to claim 17, wherein said fins include pin-shaped or needle-shaped thin fins.
Claim 24
Dependent Claim
22 words
The heat sink according to claim 17, wherein said separating means includes a thermally conductive spacer interposed between adjacent heat sink elements.
Claim 25
Dependent Claim
39 words
The heat sink according to claim 17, wherein said separating means includes a bent portion formed by bending at least a portion of each of said lateral edges of said plurality of heat sink elements at a predetermined angle.
Claim 26
Dependent Claim
33 words
The heat sink according to claim 17, wherein said separating means includes at least one projection formed at the portion of each of said lateral edges of said plurality of heat sink elements.
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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) | 1998-01-16 | 1998-07-18 | 1999-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-16 | 2002-07-18 | 2003-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-16 | 2006-07-18 | 2007-01-17 | $7700.00 | Window Closed / Lapsed |