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US5640046A Expired / Lapsed US ⏱️ 0.0 years remaining

Cooling structure for integrated circuit element modules, electronic device and heat sink block

Assignee: Fujitsu Ltd
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Filing: 1995-05-01
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Granted: 1997-06-17
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Expires: 2015-05-01
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Abstract

Abstract In a cooling structure for cooling circuit element modules that are mounted on a circuit board and has heat sinks, there are provided a main duct to which the circuit element modules are connected, and a coolant supplying device which is connected to the main duct and supplies a coolant to the main duct.

Inventors

  • 👤 Masahiro Suzuki
  • 👤 Akihiko Fujisaki
  • 👤 Junichi Ishimine

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 11:50
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/43; H10W40/70; H10W40/77; H10W40/772

Claims Analysis

Total Claims: 36
Claim 1
Independent Claim 121 words
A cooling structure for cooling circuit element modules, which have heat sinks, that are mounted on a circuit board, said cooling structure comprising: a main duct to which the circuit element modules are connected; a coolant supplying device which is connected to the main duct and supplies a coolant to the main duct; and module joint ducts directly connecting the main duct to the heat sinks of the circuit element modules, each of said module joint ducts having a first end being directly connected to a respective one of said heat sinks and a second end being directly attached to said main duct so as to directly join each of said respective one of said heat sinks to said main duct.
Claim 2
Dependent Claim 121 words
A cooling structure for cooling circuit element modules, which have heat sinks, that are mounted on a circuit board, said cooling structure comprising: a main duct to which the circuit element modules are connected; a coolant supplying device which is connected to the main duct and supplies a coolant to the main duct; and module joint ducts directly connecting the main duct to the heat sinks of the circuit element modules, each of said module joint ducts having a first end being directly connected to a respective one of said heat sinks and a second end being directly attached to said main duct so as to directly join each of said respective one of said heat sinks to said main duct.
Claim 3
Dependent Claim 41 words
The cooling structure as claimed in claim 1, wherein each of the module joint ducts has a first end which is connected to the main duct, and a second end which is connected to a corresponding one of the heat sinks.
Claim 4
Dependent Claim 50 words
The cooling structure as claimed in claim 2, further comprising a mechanism which causes the main duct to pivot about a predetermined shaft, so that the module joint ducts are in contact with the main duct when the mechanism causes the main duct to be located in a predetermined position.
Claim 5
Dependent Claim 31 words
The cooling structure as claimed in claim 2, further comprising a lock mechanism that fastens first ends of the module joint ducts to either the main duct or the heat sinks.
Claim 6
Dependent Claim 50 words
The cooling structure as claimed in claim 1, further comprising a mechanism which causes the main duct to pivot about a predetermined shaft, so that the module joint ducts are in contact with the main duct when the mechanism causes the main duct to be located in a predetermined position.
Claim 7
Dependent Claim 22 words
The cooling structure as claimed in claim 1, wherein the main duct comprises openings to which the module joint ducts are connected.
Claim 8
Dependent Claim 29 words
The cooling structure as claimed in claim 1, wherein the module joint ducts comprise members which are expandable and contractible between the main duct and the circuit element modules.
Claim 9
Dependent Claim 41 words
The cooling structure as claimed in claim 7, wherein each of the module joint ducts has a first end which is connected to the main duct, and a second end which is connected to a corresponding one of the heat sinks.
Claim 10
Dependent Claim 27 words
The cooling structure as claimed in claim 1, further comprising a connection duct which is fastened to the main duct and coupled with the coolant supplying device.
Claim 11
Dependent Claim 18 words
The cooling structure as claimed in claim 9, wherein said connection duct has an expandable and contractible structure.
Claim 12
Dependent Claim 34 words
The cooling structure as claimed in claim 1, further comprising: a connection duct which is fastened to the main duct; and a header duct connecting the connection duct and the coolant supplying device together.
Claim 13
Dependent Claim 18 words
The cooling structure as claimed in claim 11, wherein said connection duct has an expandable and contractible structure.
Claim 14
Dependent Claim 62 words
The cooling structure as claimed in claim 11, wherein: said header duct has first openings and second openings; the connection duct is connected to the header duct so that the connection duct continues to a corresponding one of the first openings; and the coolant supply device comprises fans connected to the header duct so that the fans continue to the second openings.
Claim 15
Dependent Claim 27 words
The cooling structure as claimed in claim 13, further comprising a seal plate attached to one of the first openings to which no main duct is connected.
Claim 16
Dependent Claim 20 words
The cooling structure as claimed in claim 11, further comprising a seal member sealing a connection with the connection duct.
Claim 17
Dependent Claim 19 words
The cooling structure as claimed in claim 11, further comprising seal members sealing a connection with the header duct.
Claim 18
Dependent Claim 22 words
The cooling structure as claimed in claim 11, further comprising a magnetically fastening mechanism forming a magnetic connection with the connection duct.
Claim 19
Dependent Claim 22 words
The cooling structure as claimed in claim 11, further comprising a magnetically fastening mechanism forming a magnetic connection with the header duct.
Claim 20
Dependent Claim 33 words
The cooling structure as claimed in claim 1, further comprising an auxiliary fan which cooperates with the coolant supplying device so that a flow of the coolant is facilitated by said auxiliary fan.
Claim 21
Dependent Claim 25 words
The cooling structure as claimed in claim 1, wherein the main duct comprises through openings which allow a person to access the module joint ducts.
Claim 22
Dependent Claim 24 words
The cooling structure as claimed in claim 1, further comprising attachment brackets which are attached on the circuit board and support the main duct.
Claim 23
Dependent Claim 19 words
The cooling structure as claimed in claim 1, further comprising seal members sealing connections with the module joint ducts.
Claim 24
Dependent Claim 22 words
The cooling structure as claimed in claim 1, further comprising a magnetically fastening mechanism forming magnetic connections with the module joint ducts.
Claim 25
Dependent Claim 21 words
The cooling structure as claimed in claim 1, wherein the main duct comprises rib members that mechanically reinforce the main duct.
Claim 26
Dependent Claim 92 words
The cooling structure as claimed in claim 1, wherein: each of said heat sinks comprises one or more heat sink blocks; and each of the heat sink blocks comprises: a base; fins mounted on the base; and a partition duct covering the fins and having a first opening coupled to the main duct and a second opening facing the fins, the first and second openings being coupled together, an inner coolant passage passing through the fins being coupled to the second opening and an outer coolant passage defined by the partition duct.
Claim 27
Dependent Claim 17 words
The cooling structure as claimed in claim 1, wherein the circuit element modules comprise integrated circuit elements.
Claim 28
Dependent Claim 152 words
An electronic device, comprising: a circuit board; and circuit element modules mounted on the circuit board, wherein each of the circuit element modules comprises: a circuit element mounted on the circuit board; and a heat sink attached to the circuit element and coupled to a main duct in which a coolant is transferred, wherein said heat sink comprises at least one heat sink block, wherein each of the heat sink blocks comprises: a base attached to the circuit element; fins mounted on the base; and a partition duct covering and directly connected to the fins and having a first end with a first opening coupled to the main duct and a second end with a second opening facing the fins, the first and second openings being coupled together, an inner coolant passage passing through the fins being coupled to the second opening and an outer coolant passage defined by the partition duct.
Claim 29
Dependent Claim 152 words
An electronic device, comprising: a circuit board; and circuit element modules mounted on the circuit board, wherein each of the circuit element modules comprises: a circuit element mounted on the circuit board; and a heat sink attached to the circuit element and coupled to a main duct in which a coolant is transferred, wherein said heat sink comprises at least one heat sink block, wherein each of the heat sink blocks comprises: a base attached to the circuit element; fins mounted on the base; and a partition duct covering and directly connected to the fins and having a first end with a first opening coupled to the main duct and a second end with a second opening facing the fins, the first and second openings being coupled together, an inner coolant passage passing through the fins being coupled to the second opening and an outer coolant passage defined by the partition duct.
Claim 30
Dependent Claim 32 words
The electronic device as claimed in claim 27, wherein the heat sink blocks of the heat sink are arranged so that outer coolant passages of adjacent heat sink blocks are coupled together.
Claim 31
Dependent Claim 31 words
The electronic device as claimed in claim 27, wherein the heat sink blocks of the heat sink are arranged so that outer coolant passages thereof are oriented in a predetermined direction.
Claim 32
Dependent Claim 32 words
The electronic device as claimed in claim 27, wherein the heat sink blocks of the heat sink are arranged so that outer coolant passages of adjacent heat sink blocks face each other.
Claim 33
Dependent Claim 25 words
The electronic device as claimed in claim 27, wherein each of the heat sink blocks comprises another outer coolant passage defined by the partition duct.
Claim 34
Dependent Claim 89 words
A heat sink block, comprising: a base to be attached to the circuit element; fins mounted on the base; and a partition duct covering and directly connected to the fins and having a first end with a first opening to be coupled to a main duct and a second end with a second opening facing the fins, the first and second openings being coupled together, an inner coolant passage passing through the fins being coupled to the second opening and an outer coolant passage defined by the partition duct.
Claim 35
Dependent Claim 89 words
A heat sink block, comprising: a base to be attached to the circuit element; fins mounted on the base; and a partition duct covering and directly connected to the fins and having a first end with a first opening to be coupled to a main duct and a second end with a second opening facing the fins, the first and second openings being coupled together, an inner coolant passage passing through the fins being coupled to the second opening and an outer coolant passage defined by the partition duct.
Claim 36
Dependent Claim 23 words
The electronic device as claimed in claim 32, wherein the heat sink block comprises another outer coolant passage defined by the partition duct.

References Cited (Backward Citations)

US4296455A Cited
JPS59202657A Cited
US4851965A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2000-06-16 2000-12-16 2001-06-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2004-06-16 2004-12-16 2005-06-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2008-06-16 2008-12-16 2009-06-17 $7700.00 Window Closed / Lapsed

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