US5729995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic component cooling unit
Assignee: Marelli Corp
•
Filing: 1996-03-19
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Granted: 1998-03-24
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Expires: 2016-03-19
Abstract
Abstract In an electronic component cooling unit, parts of the outer surfaces of a plurality of passageways in which refrigerant flows are coupled to one surface of a cold plate on the other surface of which an electronic component is mounted, and a header tank is provided in the plurality of passageways so that a plurality of looped passageways are formed. The plurality of passageways are provided by a multi-flow-path container which is formed by extrusion molding and has a flattened cross section.
Inventors
- 👤 Makoto Tajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:51
CPC Classifications
F; F28; F28D; F28D15/00; F28D15/02; F28D15/0266; F28D15/0275; H; H10; H10W; H10W40/00; H10W40/40; H10W40/47
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
139 words
An electronic component cooling unit, comprising: a cold plate, an electronic component being mounted on one surface of said cold plate; a plurality of passageways through which a refrigerant flows, portions of outer surfaces of said plurality of passageways being coupled to the other surface of said cold plate; and a header tank provided in said plurality of passageways so that a plurality of looped passageways are formed, wherein said refrigerant is contained in said looped passageways, and a pressure in said looped passageways is lower than an atmospheric pressure wherein said plurality of passageways are provided by a multi-flow-path container which has a flattened cross section and which is matingly engaged with said cold plate, and wherein said cold plate further comprises caulking pawls bent to couple the cold plate to a coupling portion of said multi-flow-path container.
Claim 2
Dependent Claim
139 words
An electronic component cooling unit, comprising: a cold plate, an electronic component being mounted on one surface of said cold plate; a plurality of passageways through which a refrigerant flows, portions of outer surfaces of said plurality of passageways being coupled to the other surface of said cold plate; and a header tank provided in said plurality of passageways so that a plurality of looped passageways are formed, wherein said refrigerant is contained in said looped passageways, and a pressure in said looped passageways is lower than an atmospheric pressure wherein said plurality of passageways are provided by a multi-flow-path container which has a flattened cross section and which is matingly engaged with said cold plate, and wherein said cold plate further comprises caulking pawls bent to couple the cold plate to a coupling portion of said multi-flow-path container.
Claim 3
Dependent Claim
24 words
An electronic component cooling unit as claimed in claim 1, wherein said header tank is provided in the lower portions of said looped passageways.
Claim 4
Dependent Claim
27 words
An electronic component cooling unit as claimed in claim 1, wherein said multi-flow-path container is provided with a heat exchanger section bent at least once into U-shape.
Claim 5
Dependent Claim
21 words
An electronic component cooling unit as claimed in claim 3, further comprising a corrugated fin disposed at said heat exchanger section.
Claim 6
Dependent Claim
30 words
An electronic component cooling unit as claimed in claim 1, further comprising a brazing plate for coupling to the coupling portion of said multi-flow-path container and to said cold plate.
Claim 7
Dependent Claim
31 words
An electronic component cooling unit as claimed in claim 5, wherein said header tank has a pair of elongated holes in which the end portions of the multi-flow-path container are fitted.
Claim 8
Dependent Claim
22 words
An electronic component cooling unit as claimed in claim 6, further comprising end plates for covering the outermost of said radiating fins.
Claim 9
Dependent Claim
20 words
An electronic component cooling unit as claimed in claim 7, further comprising a refrigerant pouring inlet on said header tank.
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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) | 2001-03-23 | 2001-09-22 | 2002-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-23 | 2005-09-22 | 2006-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-23 | 2009-09-22 | 2010-03-24 | $7700.00 | Window Closed / Lapsed |