US5083373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for providing a thermal transfer device for the removal of heat from packaged elements
Assignee: Hewlett Packard Development Co LP
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Filing: 1991-05-21
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Granted: 1992-01-28
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Expires: 2011-05-21
Abstract
Abstract In order to provide thermal coupling of a package, particularly a package containing electronic components, and a heat sink, a thermal transfer assembly includes a first assembly having a group of generally parallel cooling fins coupled to the package. Coupled to the heat sink, such as cooling plate, is a second assembly also including a plurality of generally parallel cooling fins. The second set of cooling fins is positioned on the heat sink so that when the heat sink is in a predetermined position with respect to the package, the cooling fins overlap. The overlapping cooling fins permit efficient transfer of heat thus permitting heat generated in the package to be conveyed to the heat sink. The overlapping fins also permit convenient disassembly and reassembly for test and maintenance procedures. Techniques for fabrication of the thermal transfer assembly are described along with procedures for improving the operation of the heat transfer assembly. Parameters optimizing the performance of thermal transfer assembly are discussed. The individual components of the thermal transfer unit can be used separately as heat exchange units.
Inventors
- 👤 William R. Hamburgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:16
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/70; H10W40/77; H10W40/774; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/4935; Y10T29/49826; Y10T29/49861; Y10T29/49892; Y10T29/49904
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
120 words
The process for fabricating a thermal transfer device comprising the steps of: positioning a strip of a spacer material between each member of a first set of parallel thermally conducting unassembled cooling fins and an adjacent member of a second set of parallel thermally conducting unassembled cooling fins interleaved with said first member; connecting said first set of cooling fins to a first thermally conducting base member to form a first thermal transfer unit; connecting said second set of thermally conducting cooling fins to a second thermally conducting base member to form a second thermal transfer unit; and removing said spacer material, wherein said first and said second set of cooling fins are interleaved in an operative thermal transfer configuration.
Claim 2
Dependent Claim
120 words
The process for fabricating a thermal transfer device comprising the steps of: positioning a strip of a spacer material between each member of a first set of parallel thermally conducting unassembled cooling fins and an adjacent member of a second set of parallel thermally conducting unassembled cooling fins interleaved with said first member; connecting said first set of cooling fins to a first thermally conducting base member to form a first thermal transfer unit; connecting said second set of thermally conducting cooling fins to a second thermally conducting base member to form a second thermal transfer unit; and removing said spacer material, wherein said first and said second set of cooling fins are interleaved in an operative thermal transfer configuration.
Claim 3
Dependent Claim
37 words
The process for fabricating a thermal transfer device of claim 1 further comprising the steps of coupling said first thermal transfer unit to a heat source and coupling said second thermal transfer unit to a heat sink.
Claim 4
Dependent Claim
59 words
The process for fabricating a thermal transfer device of claim 2 further comprising the steps of: coupling said heat sink to a first structure; coupling said heat source to a second structure; and coupling said first and said second structure wherein said first and said second sets of fins can be engaged into and disengaged from said protective configuration.
Claim 5
Dependent Claim
116 words
The process for fabricating a thermal transfer device of claim 1 further comprising the steps of: positioning spacer material between each member of a third set of parallel thermally conducting unassembled cooling fins and an adjacent member of a fourth set of parallel thermally conducting unassembled cooling fins interleaved with said third set; connecting said third set of cooling fins to said second thermally conducting base member to form an intermediate thermal transfer unit; and connecting said fourth set of thermally conducting cooling fins to a third thermally conducting base member to form a second thermal transfer unit, wherein said third and said fourth set of cooling fins are interleaved in said operative thermal transfer configuration.
Claim 6
Independent Claim
134 words
A method for providing a thermal transfer device having a first thermal transfer unit, and a second thermal transfer unit, said method comprising the steps of: positioning a strip of a spacer material between each member of a first set of parallel thermally conducting unassembled cooling fins and an adjacent member of a second set of parallel thermally conducting unassembled cooling fins interleaved with said first member; bonding said first set of cooling fins to a first thermally conducting base member to form said first thermal transfer unit; bonding said second set of thermally conducting cooling fins to a second thermally conducting base member to form said second thermal transfer unit; and removing said spacer material, wherein said first and said second set of cooling fins are interleaved in an operative thermal transfer configuration.
Claim 7
Independent Claim
134 words
A method for providing a thermal transfer device having a first thermal transfer unit, and a second thermal transfer unit, said method comprising the steps of: positioning a strip of a spacer material between each member of a first set of parallel thermally conducting unassembled cooling fins and an adjacent member of a second set of parallel thermally conducting unassembled cooling fins interleaved with said first member; bonding said first set of cooling fins to a first thermally conducting base member to form said first thermal transfer unit; bonding said second set of thermally conducting cooling fins to a second thermally conducting base member to form said second thermal transfer unit; and removing said spacer material, wherein said first and said second set of cooling fins are interleaved in an operative thermal transfer configuration.
Claim 8
Dependent Claim
80 words
The method of claim 5 further comprising the step of fabricating said fins and selected said spacer material according to the relationship L.sup.2 =S*B*K.sub.P /K.sub.G where L is a length of an overlap between said fins in said operative configuration, S is the thickness of said spacer material, B is a thickness of said fins, K P is a thermal conductivity of said fins and K G is a thermal conductivity of material between said fins in said operative configuration.
Claim 9
Independent Claim
178 words
A method for providing a thermal transfer device having a first thermal transfer unit, and a second thermal transfer unit, said method of comprising the steps of: positioning a strip of spacer material between each member of a first set of parallel thermally conducting unassembled cooling fins and an adjacent member of a second set of parallel thermally conducting unassembled cooling fins interleaved with said first member; connecting said first set of cooling fins to a first thermally conducting base member to form said first thermal transfer unit; connecting said second set of thermally conducting cooling fins to a second thermally conducting base member to form said second thermal transfer unit; removing said spacer material, wherein said first and said second set of cooling fins are interleaved in an operative thermal transfer configuration; coupling said second thermal transfer unit to a heat sink; coupling said heat source to a second structure; and coupling said first and said second structure wherein said first and said second sets of fins can be engaged into and disengaged from said operative configuration.
Claim 10
Independent Claim
178 words
A method for providing a thermal transfer device having a first thermal transfer unit, and a second thermal transfer unit, said method of comprising the steps of: positioning a strip of spacer material between each member of a first set of parallel thermally conducting unassembled cooling fins and an adjacent member of a second set of parallel thermally conducting unassembled cooling fins interleaved with said first member; connecting said first set of cooling fins to a first thermally conducting base member to form said first thermal transfer unit; connecting said second set of thermally conducting cooling fins to a second thermally conducting base member to form said second thermal transfer unit; removing said spacer material, wherein said first and said second set of cooling fins are interleaved in an operative thermal transfer configuration; coupling said second thermal transfer unit to a heat sink; coupling said heat source to a second structure; and coupling said first and said second structure wherein said first and said second sets of fins can be engaged into and disengaged from said operative configuration.
Claim 11
Dependent Claim
34 words
The method of claim 7 further comprising the step of: compensating for thermal expansion of said first structure by orienting said first set of fins generally parallel to a selected point on said structure.
Claim 12
Independent Claim
222 words
A method of fabricating a thermal transfer device said method of comprising the steps of: positioning a strip of spacer material between each member of a first set of parallel thermally conducting unassembled cooling fins and an adjacent member of a second set of parallel thermally conducting unassembled cooling fins interleaved with said first member; connecting said first set of cooling fins to a first thermally conducting base member to form said first thermal transfer unit; connecting said second set of thermally conducting cooling fins to a second thermally conducting base member to form a second thermal transfer unit; and removing said spacer material, wherein said first and said second set of cooling fins are interleaved in an operative thermal transfer configuration positioning spacer material between each member of a third set of parallel thermally conducting unassembled cooling fins and an adjacent member of a fourth set of parallel thermally conducting unassembled cooling fins interleaved with said third set; connecting said third set of cooling fins to said second thermally conducting base member to form an intermediate thermal transfer unit; and connecting said fourth set of thermally conducting cooling fins to a third thermally conducting base member to form a second thermal transfer unit, wherein said third and said fourth set of cooling fins are interleaved in said operative thermal transfer configuration.
Claim 13
Independent Claim
222 words
A method of fabricating a thermal transfer device said method of comprising the steps of: positioning a strip of spacer material between each member of a first set of parallel thermally conducting unassembled cooling fins and an adjacent member of a second set of parallel thermally conducting unassembled cooling fins interleaved with said first member; connecting said first set of cooling fins to a first thermally conducting base member to form said first thermal transfer unit; connecting said second set of thermally conducting cooling fins to a second thermally conducting base member to form a second thermal transfer unit; and removing said spacer material, wherein said first and said second set of cooling fins are interleaved in an operative thermal transfer configuration positioning spacer material between each member of a third set of parallel thermally conducting unassembled cooling fins and an adjacent member of a fourth set of parallel thermally conducting unassembled cooling fins interleaved with said third set; connecting said third set of cooling fins to said second thermally conducting base member to form an intermediate thermal transfer unit; and connecting said fourth set of thermally conducting cooling fins to a third thermally conducting base member to form a second thermal transfer unit, wherein said third and said fourth set of cooling fins are interleaved in said operative thermal transfer configuration.
References Cited (Backward Citations)
US2371847A
Cited
US4092697A
Cited
US4226281A
Cited
US4235283A
Cited
EP0048992A2
Cited
US4381032A
Cited
US4498530A
Cited
US4649990A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1995-01-27 | 1995-07-29 | 1996-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-27 | 1999-07-29 | 2000-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-27 | 2003-07-29 | 2004-01-28 | $7700.00 | Window Closed / Lapsed |