초록 ▼

A heat exchanger assembly is provided including a multi-function boiling chamber having a top wall and a bottom wall parallel to the top wall and a first side wall and a second side wall both extending inwardly from the bottom wall to the top wall and a pair of end walls closing the chamber. First a

A heat exchanger assembly is provided including a multi-function boiling chamber having a top wall and a bottom wall parallel to the top wall and a first side wall and a second side wall both extending inwardly from the bottom wall to the top wall and a pair of end walls closing the chamber. First and second condensing tubes attached to the first and second side walls, respectively, of the boiling chamber have an elongated width presenting an upper surface and a lower surface and extend in opposite respective directions to distal ends of the tubes at an inclined angle relative to the bottom wall of the boiling chamber. The condensing tubes include a plurality of channels across the width and extending from the boiling chamber to the distal end of the tube. A tank disposed at each of the distal ends of the condensing tubes is in fluid communication with the channels tubes. Upper air fins extending upwardly in a plane containing the top wall of the boiling chamber and lower air fins extending downwardly in a plane containing the bottom wall of the boiling chamber engage the respective upper and lower surfaces of both condensing tubes between the respective side walls of the boiling chamber and a position adjacent the respective distal ends of the condensing tubes.

대표청구항 ▼

What is claimed is: 1. A heat exchanger assembly for cooling an electronic device comprising; a boiling chamber having a top wall and a bottom wall parallel to said top wall, a first condensing tube having an elongated width presenting an upper surface and a lower surface and extending in a first d

What is claimed is: 1. A heat exchanger assembly for cooling an electronic device comprising; a boiling chamber having a top wall and a bottom wall parallel to said top wall, a first condensing tube having an elongated width presenting an upper surface and a lower surface and extending in a first direction from said boiling chamber to a first distal end at an inclined angle relative to said bottom wall of said boiling chamber, a second condensing tube having an elongated width presenting an upper surface and a lower surface and extending in a second direction from said boiling chamber to a second distal end at said inclined angle relative to said bottom wall of said boiling chamber, a first plurality of upper air fins engaging said upper surface of said first condensing tube between said boiling chamber and a position adjacent said first distal end of said first condensing tube, a second plurality of upper air fins engaging said upper surface of said second condensing tube between said boiling chamber and a position adjacent said second distal end of said second condensing tube, a first plurality of lower air fins engaging said lower surface of said first condensing tube between said boiling chamber and a position adjacent said first distal end of said first condensing tube, a second plurality of lower air fins engaging said second condensing tube between said boiling chamber and a position adjacent said second distal end of said second condensing tube, each of said first and second pluralities of upper air fins extending upwardly successively different distances from said upper surfaces of said condensing tubes to a plane containing said top wall of said boiling chamber, and each of said lower air fins extending downwardly successively different distances from said lower surfaces of said condensing tubes to a plane parallel to said bottom wall of said boiling chamber, wherein said boiling chamber includes a first side wall and a second side wall both extending inwardly from said bottom wall to said top wall, thereby defining a substantially trapezoidal cross sectional area and a pair of end walls closing said chamber. 2. A heat exchanger assembly for cooling an electronic device as set forth in claim 1 further wherein said first condensing tube is attached to said first side wall of said boiling chamber and extends in said first direction from said first side wall to the first distal end and wherein said second condensing tube is attached to said second side wall of said boiling chamber and extends in said second direction from said second side wall to the second distal end. 3. A heat exchanger assembly as set forth in claim 2 wherein said first condensing tube includes a plurality of channels across said width and extending from said boiling chamber to said first distal end, and wherein said second condensing tube includes a plurality of channels across said width extending from said boiling chamber to said second distal end. 4. A heat exchanger assembly as set forth in claim 3 further comprising a first tank disposed at said first distal end of said first condensing tube in fluid communication with said channels of said first condensing tube, and a second tank disposed at said second distal end of said condensing tube in fluid communication with said channels of said second condensing tube. 5. A heat exchanger assembly as set forth in claim 4 wherein said first plurality of upper air fins engage said first side wall of said boiling chamber, and said second plurality of upper air fins engage said second side wall of said boiling chamber. 6. A heat exchanger assembly as set forth in claim 5 wherein said first plurality of lower air fins engage said first side wall of said boiling chamber, and said second plurality of lower air fins engage said second side wall of said boiling chamber. 7. A heat exchanger assembly as set forth in claim 1 wherein said first plurality of upper air fins are defined by a first continuous sheet having a leading edge transversely engaging said first side wall at said top wall and a trailing edge transversely engaging said first condensing tube adjacent said first distal end of said first condensing tube, said second plurality of upper air fins defined by a second continuous sheet having a leading edge transversely engaging said second side wall at said top wall and a trailing edge transversely engaging said second condensing tube adjacent said second distal end of said second condensing tube, said first plurality of lower air fins defined by a third continuous sheet having a leading edge transversely engaging said first side wall adjacent said bottom wall and a trailing edge transversely engaging said first condensing tube adjacent said first distal end of said first condensing tube, and said second plurality of lower air fins defined by a fourth continuous sheet having a leading edge transversely engaging said second side wall adjacent said bottom wall and a trailing edge transversely engaging said second condensing tube adjacent said second distal end of said second condensing tube. 8. A heat exchanger assembly for cooling an electronic device as set forth in claim 7 wherein said first continuous sheet defines v-shaped loops having lower apexes engaging said upper surface of said first condensing tube and upper apexes aligned in a plane containing said top wall of said boiling chamber, said second continuous sheet defines v-shaped loops having lower apexes engaging said upper surface of said second condensing tube and upper apexes aligned in a plane containing said top wall of said boiling chamber, said third continuous sheet defines v-shaped loops having upper apexes engaging said lower surface of said first condensing tube and lower apexes aligned in a plane parallel with said bottom wall of said boiling chamber, and said fourth continuous sheet defines v-shaped loops having upper apexes engaging said lower surface of said second condensing tube and lower apexes aligned in a plane parallel to said bottom wall of said boiling chamber. 9. A heat exchanger assembly for cooling an electronic device comprising; a boiling chamber having a top wall and a bottom wall parallel to said top wall, a first condensing tube having an elongated width presenting an upper surface and a lower surface and extending in a first direction from said boiling chamber to a first distal end at an inclined angle relative to said bottom wall of said boiling chamber, a second condensing tube having an elongated width presenting an upper surface and a lower surface and extending in a second direction from said boiling chamber to a second distal end at said inclined angle relative to said bottom wall of said boiling chamber, a first plurality of upper air fins engaging said upper surface of said first condensing tube between said boiling chamber and a position adjacent said first distal end of said first condensing tube, a second plurality of upper air fins engaging said upper surface of said second condensing tube between said boiling chamber and a position adjacent said second distal end of said second condensing tube, a first plurality of lower air fins engaging said lower surface of said first condensing tube between said boiling chamber and a position adjacent said first distal end of said first condensing tube, a second plurality of lower air fins engaging said second condensing tube between said boiling chamber and a position adjacent said second distal end of said second condensing tube, each of said first and second pluralities of upper air fins extending upwardly successively different distances from said upper surfaces of said condensing tubes to a plane containing said top wall of said boiling chamber, and each of said lower air fins extending downwardly successively different distances from said lower surfaces of said condensing tubes to a plane parallel to said bottom wall of said boiling chamber; wherein said first plurality of upper air fins are defined by a first continuous sheet having a leading edge transversely engaging said first side wall at said top wall and a trailing edge transversely engaging said first condensing tube adjacent said first distal end of said first condensing tube, said second plurality of upper air fins defined by a second continuous sheet having a leading edge transversely engaging said second side wall at said top wall and a trailing edge transversely engaging said second condensing tube adjacent said second distal end of said second condensing tube, said first plurality of lower air fins defined by a third continuous sheet having a leading edge transversely engaging said first side wall adjacent said bottom wall and a trailing edge transversely engaging said first condensing tube adjacent said first distal end of said first condensing tube, and said second plurality of lower air fins defined by a fourth continuous sheet having a leading edge transversely engaging said second side wall adjacent said bottom wall and a trailing edge transversely engaging said second condensing tube adjacent said second distal end of said second condensing tube, wherein said first continuous sheet defines v-shaped loops having lower apexes engaging said upper surface of said first condensing tube and upper apexes aligned in a plane containing said top wall of said boiling chamber, said second continuous sheet defines v-shaped loops having lower apexes engaging said upper surface of said second condensing tube and upper apexes aligned in a plane containing said top wall of said boiling chamber, said third continuous sheet defines v-shaped loops having upper apexes engaging said lower surface of said first condensing tube and lower apexes aligned in a plane parallel with said bottom wall of said boiling chamber, and said fourth continuous sheet defines v-shaped loops having upper apexes engaging said lower surface of said second condensing tube and lower apexes aligned in a plane parallel to said bottom wall of said boiling chamber; and wherein each of said v-shaped loops defined by said first continuous sheet extend downwardly in first and second legs from an upper apex with said first leg being closer to said boiling chamber and to extend at a greater angle relative to said first condensing tube than a lesser angle of said second leg, each of said v-shaped loops defined by said second continuous sheet extend downwardly in third and fourth legs from an upper apex with said first leg being closer to said boiling chamber to extend at a greater angle relative to said second condensing tube than a lesser angle of said fourth leg, each of said v-shaped loops defined by said third continuous sheet extend upwardly in fifth and sixth legs from a lower apex with said fifth leg being closer to said boiling chamber to extend at a lesser angle relative to said first condensing tube than said sixth leg, and each of said v-shaped loops defined by said fourth continuous sheet extend upwardly in seventh and eighth legs from a lower apex with said seventh leg being closer to said boiling chamber to extend at a lesser angle relative to said second condensing tube than said eighth leg. 10. A heat exchanger assembly as set forth in claim 1 further comprising a first tank disposed at said first distal end of said first condensing tube in fluid communication with said first tube and a second tank disposed at said second distal end of said second condensing tube in fluid communication with said second tube, said first tank being sealed to and in communication with said first condensing tube and said second tank being sealed to and in communication with said second condensing tube. 11. A heat exchanger assembly as set forth in claim 1 further comprising a fan assembly supported between said distal ends for moving air through said air fins. 12. A heat exchanger assembly as set forth in claim 1 wherein said first plurality of upper air fins is bonded to said upper surface of said first condensing tube, said second plurality of upper air fins is bonded to said lower surface of said first condensing tube, said first plurality of upper air fins is bonded to said upper surface of said first condensing tube, and said second plurality of lower air fins is bonded to said lower surface of said second condensing tube. 13. A heat exchanger assembly as set forth in claim 9 wherein said first plurality of upper air fins is brazed to said upper surface of said first condensing tube, said second plurality of upper air fins is brazed to said lower surface of said first condensing tube, said first plurality of upper air fins is brazed to said upper surface of said first condensing tube, and said second plurality of lower air fins is brazed to said lower surface of said second condensing tube. 14. A heat exchanger assembly for cooling an electronic device comprising; a boiling chamber having a top wall and a bottom wall parallel to said top wall and a first side wall and a second side wall both extending inwardly from said bottom wall to said top wall and a pair of end walls closing said chamber, a first condensing tube attached to said first side wall of said boiling chamber having an elongated width presenting an upper surface and a lower surface and extending in a first direction from said first side wall to a first distal end at an inclined angle relative to said bottom wall of said boiling chamber, said first tube including a plurality of channels across said width and extending from said boiling chamber to said first distal end, a first tank disposed at said first distal end of said first condensing tube in fluid communication with said channels of said first tube, a second condensing tube attached to said second side wall of said boiling chamber having an elongated width presenting an upper surface and a lower surface and extending in a second direction from said second side wall to a second distal end at said inclined angle relative to said bottom wall of said boiling chamber, said second tube including a plurality of channels across said width extending from said boiling chamber to said second distal end, a second tank disposed at said second distal end of said second condensing tube in fluid communication with said channels of said second tube, a first plurality of upper air fins engaging said upper surface of said first condensing tube between said first side wall of said boiling chamber and a position adjacent said first distal end of said first condensing tube, a second plurality of upper air fins engaging said upper surface of said second condensing tube between said second side wall of said boiling chamber and a position adjacent said second distal end of said second condensing tube, a first plurality of lower air fins engaging said lower surface of said first condensing tube between said first side wall of said boiling chamber and a position adjacent said first distal end of said first condensing tube, a second plurality of lower air fins engaging said second condensing tube between said second side wall of said boiling chamber and a position adjacent said second distal end of said second condensing tube, a fan assembly being supported between said distal ends for moving air through said air fins and having a fan housing with a spiral periphery extending about a fan axis to an exhaust and a fan blower supported for rotation about said fan axis, said upper air fins extending upwardly from said upper surfaces of said condensing tubes to a plane containing said top wall of said boiling chamber, and said lower air fins extending downwardly from said lower surfaces of said condensing tubes to a plane parallel with said bottom wall of said boiling chamber, said first upper air fins defined by a first continuous sheet having a leading edge transversely engaging said first side wall at said top wall and a trailing edge transversely engaging said first condensing tube adjacent said first distal end of said first condensing tube, said first continuous sheet defining v-shaped loops having lower apexes engaging said upper surface of said first condensing tube and upper apexes aligned in a plane containing said top wall of said boiling chamber, each of said v-shaped loops extending downwardly in first and second legs from an upper apex with said first leg being closer to said boiling chamber and extending at a greater angle relative to said first condensing tube than a lesser angle of said second leg, said second plurality of upper air fins defined by a second continuous sheet having a leading edge transversely engaging said second side wall at said top wall and a trailing edge transversely engaging said second condensing tube adjacent said second distal end of said second condensing tube, said second continuous sheet defining v-shaped loops having lower apexes engaging said upper surface of said second condensing tube and upper apexes aligned in a plane containing said top wall of said boiling chamber, each of said v-shaped loops extending downwardly in first and second legs from an upper apex with said first leg being closer to said boiling chamber and extending at a greater angle relative to said second condensing tube than a lesser angle of said second leg, said first plurality of lower air fins defined by a third continuous sheet having a leading edge transversely engaging said first side wall adjacent said bottom wall and a trailing edge transversely engaging said first condensing tube adjacent said first distal end of said first condensing tube, said third continuous sheet defining v-shaped loops having upper apexes engaging said lower surface of said first condensing tube and lower apexes aligned in a plane parallel with said bottom wall of said boiling chamber, each of said v-shaped loops extending upwardly in first and second legs from a lower apex with said first leg being closer to said boiling chamber and extending at a lesser angle relative to said first condensing tube than said second leg, said second plurality of lower air fins defined by a fourth continuous sheet having a leading edge transversely engaging said second side wall adjacent said bottom wall and a trailing edge transversely engaging said second condensing tube adjacent said second distal end of said second condensing tube, said fourth continuous sheet defining v-shaped loops having upper apexes engaging said lower surface of said second condensing tube and lower apexes aligned in a plane parallel to said bottom wall of said boiling chamber, each of said v-shaped loops extending upwardly in first and second legs from a lower apex with said first leg being closer to said boiling chamber and extending at a lesser angle relative to said second condensing tube than said second leg.