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US6019165A Expired / Lapsed US ⏱️ 0.0 years remaining

Heat exchange apparatus

Assignee: Individual
•
Filing: 1998-05-18
•
Granted: 2000-02-01
•
Expires: 2018-05-18
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Abstract

Abstract An apparatus to transfer heat from a heat source to a heat absorber, the apparatus consisting of an active thermal spreader plate with internal flow channels, a recirculating heat transfer fluid, and a means to impel the heat transfer fluid using an external moving magnetic field. In the most preferred embodiment a centripetal pump impeller is trapped inside the active thermal spreader plate, and the impeller is motivated to rotate due to eddy currents generated by the external moving magnetic fields.

Inventors

  • 👤 John Samuel Batchelder

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 08:26
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/43; F; F25; F25B; F25B21/00; F25B21/02; F28; F28D; F28D15/00; F28F; F28F3/00; F28F3/02; H10W40/70; H10W40/73; F28F2250/00; F28F2250/08; H10W74/00; H10W74/10; H10W74/15; H10W90/00; H10W90/701; H10W90/721; H10W90/724; H10W90/731; H10W90/734

Claims Analysis

Total Claims: 41
Claim 1
Independent Claim 113 words
An apparatus for transferring heat from a heat producing component to a heat absorbing component, comprising: a first composite substrate containing a closed interior channel for circulating a first thermal transfer fluid which may be completely contained within the closed interior channel; and a first electrically conductive rotatable fluid impeller contained in the closed interior channel, the impeller being motivated to rotate by eddy currents generated therein by an externally generated moving magnetic field, the rotation of the impeller motivating the first thermal transfer fluid to circulate, whereby the heat producing component transfers heat to the first thermal transfer fluid, and the first thermal transfer fluid transfers heat to the heat absorbing component.
Claim 2
Independent Claim 113 words
An apparatus for transferring heat from a heat producing component to a heat absorbing component, comprising: a first composite substrate containing a closed interior channel for circulating a first thermal transfer fluid which may be completely contained within the closed interior channel; and a first electrically conductive rotatable fluid impeller contained in the closed interior channel, the impeller being motivated to rotate by eddy currents generated therein by an externally generated moving magnetic field, the rotation of the impeller motivating the first thermal transfer fluid to circulate, whereby the heat producing component transfers heat to the first thermal transfer fluid, and the first thermal transfer fluid transfers heat to the heat absorbing component.
Claim 3
Dependent Claim 141 words
The apparatus as in claim 1, wherein the first composite substrate has a first and a second surface, the first surface for thermally contacting the heat producing component, the second surface for thermally contacting the heat absorbing component, such that the first thermal transfer fluid is in thermal contact with the first and second surfaces, the first composite substrate comprising an assembly of formed elements, further comprising: a first thermal transfer fluid contained within the first channel, whereby rotation of the first electrically conductive rotatable impeller by moving external magnetic fields impels the first thermal transfer fluid to circulate through the first channel, and heat from the heat producing component is transferred through the first surface into the first thermal transfer fluid, and heat from the first thermal transfer fluid is transferred through the second surface into the heat absorbing component.
Claim 4
Dependent Claim 20 words
The apparatus as in claim 2, wherein the exterior shape of the first composite substrate is characteristic of a plate.
Claim 5
Dependent Claim 15 words
The apparatus as in claim 2, wherein the first and second surfaces are approximately planar.
Claim 6
Dependent Claim 15 words
The apparatus as in claim 4, wherein the first and second surfaces are approximately coplanar.
Claim 7
Dependent Claim 14 words
The apparatus as in claim 5, wherein the first and second surfaces are contiguous.
Claim 8
Dependent Claim 18 words
The apparatus as in claim 4, wherein the normals to the first and second surfaces are approximately perpendicular.
Claim 9
Dependent Claim 18 words
The apparatus as in claim 4, wherein the normals to the first and second surfaces are approximately anti-parallel.
Claim 10
Dependent Claim 34 words
The apparatus as in claim 2, wherein the area of the first surface contacting the heat producing object is very much less than the area of the second surface contacting the heat absorbing object.
Claim 11
Dependent Claim 34 words
The apparatus as in claim 9, wherein the area of the first surface contacting the heat producing object is 80 times less than the area of the second surface contacting the heat absorbing object.
Claim 12
Dependent Claim 34 words
The apparatus as in claim 2, wherein the first composite substrate contains a plurality of channels, each of the plurality of channels being in fluid communication with each other of the plurality of channels.
Claim 13
Dependent Claim 317 words
The apparatus as in claim 2, wherein the heat absorbing component has a first face and a second face, the first and second faces being non-coplanar, the second surface of the first composite substrate for thermally contacting the first face of the heat absorbing component, further comprising: a) a second composite substrate having a surface, the surface of the second composite substrate for thermally contacting the second face of the heat absorbing component, the second composite substrate having a second channel for fluid flow in the interior of the second composite substrate, the second channel being in thermal contact with the surface of the second composite substrate; and b) a plurality of conduits hermetically attached to both the first and the second composite substrates, and flowably connecting the first and the second channels, and containing the first thermal transfer fluid, whereby rotation of the first electrically conductive rotatable impeller by externally generated moving magnetic fields impels the first thermal transfer fluid to circulate through the first channel in the first composite substrate, so that heat from the heat producing component is transferred through the first surface into the first thermal transfer fluid, and heat from the first thermal transfer fluid is transferred through the second surface of the first composite substrate through the first face of the heat absorbing component into the heat absorbing component, and whereby the rotation of the first electrically conductive rotatable impeller by externally generated moving magnetic fields impels the first thermal transfer fluid to circulate through the plurality of conduits and through the second channel in the second composite substrate, so that heat from the heat producing component is transferred through the first surface into the first thermal transfer fluid, and heat from the first thermal transfer fluid is transferred through the surface of the second composite substrate through the second face of the heat absorbing component into the heat absorbing component.
Claim 14
Dependent Claim 34 words
The apparatus as in claim 2, wherein a first fin means contained within the first composite substrate and in intimate contact with the first thermal fluid is in thermal contact with the first surface.
Claim 15
Dependent Claim 16 words
The apparatus as in claim 2, wherein the heat absorbing component is a second fin means.
Claim 16
Dependent Claim 30 words
The apparatus as in claim 14, wherein a second thermal transfer fluid external to the first composite substrate is impelled to pass in thermal contact with the second fin means.
Claim 17
Dependent Claim 56 words
The apparatus as in claim 16, further comprising: a) a motor; and b) a second impeller, wherein the motor means rotates the second impeller external to the first composite substrate, whereby the rotation of the second impeller motivates the flow of the second thermal transfer fluid to pass in thermal contact with the second fin means.
Claim 18
Dependent Claim 25 words
The apparatus as in claim 16, wherein the motor means generates the externally generated moving magnetic field that rotates the first electrically conductive rotatable impeller.
Claim 19
Dependent Claim 26 words
The apparatus as in claim 2, wherein the first electrically conductive rotatable impeller is located with respect to the first composite substrate with a rotatable bearing.
Claim 20
Dependent Claim 20 words
The apparatus as in claim 2, wherein the first electrically conductive rotatable impeller forms a portion of a centripetal pump.
Claim 21
Dependent Claim 20 words
The apparatus as in claim 2, wherein the first electrically conductive rotatable impeller forms a portion of a displacement pump.
Claim 22
Dependent Claim 20 words
The apparatus as in claim 2, wherein the first electrically conductive rotatable impeller forms a portion of a viscosity pump.
Claim 23
Dependent Claim 18 words
The apparatus as in claim 2, wherein a portion of the first electrically conductive rotatable impeller is copper.
Claim 24
Dependent Claim 25 words
The apparatus as in claim 2, wherein the first thermal transfer fluid is a metal which is liquid under normal operating conditions for the apparatus.
Claim 25
Dependent Claim 31 words
The apparatus as in claim 23, wherein the first thermal transfer fluid contains at least one of the following elements: aluminum, bismuth, cadmium, gallium, indium, lead, mercury, potassium, sodium, and tin.
Claim 26
Dependent Claim 29 words
The apparatus as in claim 2, wherein the first thermal transfer fluid contains at least one of the following liquids: water, ethylene glycol, methyl alcohol, ethyl alcohol, and trichloroethylene.
Claim 27
Dependent Claim 34 words
The apparatus as in claim 2, wherein a portion of the first channel contains a gas which compensates for differences in thermal expansion coefficients between the first composite substrate and the first thermal fluid.
Claim 28
Dependent Claim 15 words
The apparatus as in claim 26, wherein the gas is contained in a deformable bladder.
Claim 29
Dependent Claim 40 words
The apparatus as in claim 2, wherein the first composite substrate is sufficiently deformable so as to compensate for differences in thermal expansion between the composite substrate and the first fluid by perturbing the exterior shape of the composite substrate.
Claim 30
Dependent Claim 189 words
The apparatus as in claim 1, wherein the first composite substrate has a first and a second surface, the first surface for thermally contacting the heat producing component, the second surface for thermally contacting the heat absorbing component, such that the first thermal transfer fluid thermally contacts the first and second surfaces, further comprising: a flexure means consisting of an attachment feature and a flexible feature, the attachment feature of the flexure means affixed to the first composite substrate, the flexible feature of the flexure means extending into the closed interior channel, a portion of the flexible feature consisting of permanently magnetized material, whereby externally generated oscillatory magnetic fields generate oscillatory deflections of the flexible feature of the flexure means within the closed interior channel, such that the oscillatory deflections of the flexible feature impels the first thermal transfer fluid to circulate through the closed interior channel, and heat from the heat producing component is transferred through the first surface into the electrically conductive first thermal transfer fluid, and heat from the electrically conductive first thermal transfer fluid is transferred through the second surface into the heat absorbing component.
Claim 31
Independent Claim 224 words
An apparatus for transferring heat from a heat producing component to a heat absorbing component, comprising: a) a composite substrate containing a closed interior channel for circulating a thermal transfer fluid, the composite substrate having a surface, the surface for thermally contacting the heat absorbing component, the heat producing component able to be located in the interior of the composite substrate so that the heat producing component is in thermal contact with the thermal transfer fluid, a portion of the heat producing component extending into the closed interior channel; b) an electrically conductive rotatable fluid impeller contained in a portion of the closed interior channel, the externally generated moving magnetic fields inducing eddy currents in the impeller which interact with the externally generated moving magnetic fields to motivate the impeller to rotate; and c) a thermal transfer fluid contained within the closed interior channel, the thermal transfer fluid being in intimate contact with the portion of the heat producing component extending into the closed interior channel, whereby the rotation of the electrically conductive impeller by externally generated moving magnetic fields impels the thermal transfer fluid to circulate through the closed interior channel, and heat from the heat producing component is transferred into the thermal transfer fluid, and heat from the thermal transfer fluid is transferred through the second surface into the heat absorbing component.
Claim 32
Independent Claim 224 words
An apparatus for transferring heat from a heat producing component to a heat absorbing component, comprising: a) a composite substrate containing a closed interior channel for circulating a thermal transfer fluid, the composite substrate having a surface, the surface for thermally contacting the heat absorbing component, the heat producing component able to be located in the interior of the composite substrate so that the heat producing component is in thermal contact with the thermal transfer fluid, a portion of the heat producing component extending into the closed interior channel; b) an electrically conductive rotatable fluid impeller contained in a portion of the closed interior channel, the externally generated moving magnetic fields inducing eddy currents in the impeller which interact with the externally generated moving magnetic fields to motivate the impeller to rotate; and c) a thermal transfer fluid contained within the closed interior channel, the thermal transfer fluid being in intimate contact with the portion of the heat producing component extending into the closed interior channel, whereby the rotation of the electrically conductive impeller by externally generated moving magnetic fields impels the thermal transfer fluid to circulate through the closed interior channel, and heat from the heat producing component is transferred into the thermal transfer fluid, and heat from the thermal transfer fluid is transferred through the second surface into the heat absorbing component.
Claim 33
Dependent Claim 16 words
The apparatus device as in claim 30, wherein the first thermal transfer fluid contains mineral oil.
Claim 34
Independent Claim 302 words
An apparatus for transferring heat from a heat producing component to the atmosphere, comprising: a) a composite substrate containing a closed interior channel for circulating a thermal transfer fluid, the composite substrate having a first and a second surface, the first surface for thermally contacting the heat producing component, and the second surface for thermally contacting the heat absorbing component, such that the thermal transfer fluid is in thermal contact with the first and second surfaces; b) a first rotatable electrically conductive non-magnetic fluid impeller contained in a portion of the closed interior channel, the first impeller being motivated to rotate by externally generated moving magnetic fields; c) a thermal transfer fluid contained within the closed interior channel; d) a first fin means contained within the composite substrate, the first fin means thermally contacting the first surface, the thermal fluid being in intimate contact with the first fin means; e) a second fin means external to the composite substrate and in thermal contact with the second surface, the atmosphere being in intimate contact with the second fin means; f) a second rotatable fluid impeller external to the composite substrate capable of impelling the atmosphere to flow passed the second fin means; and g) a motor means that rotates the second impeller, which impels the atmosphere to flow passed the second fin means, the motor means also producing externally generated moving magnetic fields, whereby the rotation of the first impeller by externally generated moving magnetic fields impels the thermal transfer fluid to circulate through the closed interior channel, so that heat is transferred from the heat producing component through the first surface through the first fin means into the thermal transfer fluid, and heat from the thermal transfer fluid is transferred through the second surface through the second fin means into the atmosphere.
Claim 35
Independent Claim 302 words
An apparatus for transferring heat from a heat producing component to the atmosphere, comprising: a) a composite substrate containing a closed interior channel for circulating a thermal transfer fluid, the composite substrate having a first and a second surface, the first surface for thermally contacting the heat producing component, and the second surface for thermally contacting the heat absorbing component, such that the thermal transfer fluid is in thermal contact with the first and second surfaces; b) a first rotatable electrically conductive non-magnetic fluid impeller contained in a portion of the closed interior channel, the first impeller being motivated to rotate by externally generated moving magnetic fields; c) a thermal transfer fluid contained within the closed interior channel; d) a first fin means contained within the composite substrate, the first fin means thermally contacting the first surface, the thermal fluid being in intimate contact with the first fin means; e) a second fin means external to the composite substrate and in thermal contact with the second surface, the atmosphere being in intimate contact with the second fin means; f) a second rotatable fluid impeller external to the composite substrate capable of impelling the atmosphere to flow passed the second fin means; and g) a motor means that rotates the second impeller, which impels the atmosphere to flow passed the second fin means, the motor means also producing externally generated moving magnetic fields, whereby the rotation of the first impeller by externally generated moving magnetic fields impels the thermal transfer fluid to circulate through the closed interior channel, so that heat is transferred from the heat producing component through the first surface through the first fin means into the thermal transfer fluid, and heat from the thermal transfer fluid is transferred through the second surface through the second fin means into the atmosphere.
Claim 36
Independent Claim 267 words
An apparatus for transferring heat from a heat producing component to the atmosphere, comprising: a) a composite substrate containing a closed interior channel for circulating a thermal transfer fluid, the composite substrate having a first and a second surface, the first surface for thermally contacting the heat producing component, and the second surface for thermally contacting the heat absorbing component, such that the thermal transfer fluid is in thermal contact with the first and second surfaces; b) a first rotatable electrically conductive non-magnetic fluid impeller contained in a portion of the closed interior channel, the first impeller being motivated to rotate by externally generated moving magnetic fields; c) a thermal transfer fluid contained within the closed interior channel; d) a fin means external to the composite substrate and in thermal contact with the second surface, the atmosphere being in intimate contact with the fin means; e) a second rotatable fluid impeller external to the composite substrate capable of impelling the atmosphere to flow passed the fin means; and f) a motor means that rotates the second impeller, which impels the atmosphere to flow passed the fin means, the motor means also producing externally generated moving magnetic fields, whereby the rotation of the first impeller by externally generated moving magnetic fields impels the thermal transfer fluid to circulate through the closed interior channel, so that heat is transferred from the heat producing component through the first surface through the first fin means into the thermal transfer fluid, and heat from the thermal transfer fluid is transferred through the second surface through the second fin means into the atmosphere.
Claim 37
Independent Claim 267 words
An apparatus for transferring heat from a heat producing component to the atmosphere, comprising: a) a composite substrate containing a closed interior channel for circulating a thermal transfer fluid, the composite substrate having a first and a second surface, the first surface for thermally contacting the heat producing component, and the second surface for thermally contacting the heat absorbing component, such that the thermal transfer fluid is in thermal contact with the first and second surfaces; b) a first rotatable electrically conductive non-magnetic fluid impeller contained in a portion of the closed interior channel, the first impeller being motivated to rotate by externally generated moving magnetic fields; c) a thermal transfer fluid contained within the closed interior channel; d) a fin means external to the composite substrate and in thermal contact with the second surface, the atmosphere being in intimate contact with the fin means; e) a second rotatable fluid impeller external to the composite substrate capable of impelling the atmosphere to flow passed the fin means; and f) a motor means that rotates the second impeller, which impels the atmosphere to flow passed the fin means, the motor means also producing externally generated moving magnetic fields, whereby the rotation of the first impeller by externally generated moving magnetic fields impels the thermal transfer fluid to circulate through the closed interior channel, so that heat is transferred from the heat producing component through the first surface through the first fin means into the thermal transfer fluid, and heat from the thermal transfer fluid is transferred through the second surface through the second fin means into the atmosphere.
Claim 38
Independent Claim 483 words
An apparatus for transferring heat from a heat producing component to the atmosphere through a fin means, the fin means having a first face and a second face which can both be thermally contacted, the first and second faces being non-coplanar, the atmosphere intimately contacting the fin means, comprising: a) a first composite substrate containing a first interior channel for circulating a thermal transfer fluid, the first composite substrate having a first and a second surface, the first surface for thermally contacting the heat producing component, and the second surface for thermally contacting the first face of the fin means, such that the thermal transfer fluid is in thermal contact with the first and second surfaces; b) a first rotatable electrically conductive non-magnetic fluid impeller contained in a portion of the first interior channel, the first impeller being motivated to rotate by externally generated moving magnetic fields; c) a second composite substrate having a surface, the surface of the second composite substrate for thermally contacting the second face of the fin means, the second composite substrate containing a second interior channel for circulating a thermal transfer fluid, such that the thermal transfer fluid is in thermal contact with the surface of the second composite substrate; d) a plurality of conduits hermetically attached to both the first and the second composite substrates, and flowably connecting the first and the second interior channels; e) a thermal transfer fluid contained within the first interior channel, the second interior channel, and the plurality of conduits; f) a second rotatable fluid impeller external to the first and second composite substrates capable of impelling the atmosphere to flow passed the fin means; and g) a motor means that rotates the second impeller, the motor means generating moving external magnetic fields, whereby the rotation of the first impeller by externally generated moving magnetic fields impels the thermal transfer fluid to circulate through the first closed interior channel in the first composite substrate, so that heat from the heat producing component is transferred through the first surface into the thermal transfer fluid, and heat from the thermal transfer fluid is transferred through the second surface of the first composite substrate through the first face of fin means into the fin means, and whereby the rotation of the first impeller by externally generated moving magnetic fields impels the thermal transfer fluid to circulate through the plurality of conduits and through the second closed interior channel in the second composite substrate, so that heat from the heat producing component is transferred through the first surface into the thermal transfer fluid, and heat from the thermal transfer fluid is transferred through the surface of the second composite substrate through the second face of the fin means into fin means, and whereby the rotation of the second impeller impels atmosphere to pass through the fin means, transferring heat from the fin means into the atmosphere.
Claim 39
Independent Claim 483 words
An apparatus for transferring heat from a heat producing component to the atmosphere through a fin means, the fin means having a first face and a second face which can both be thermally contacted, the first and second faces being non-coplanar, the atmosphere intimately contacting the fin means, comprising: a) a first composite substrate containing a first interior channel for circulating a thermal transfer fluid, the first composite substrate having a first and a second surface, the first surface for thermally contacting the heat producing component, and the second surface for thermally contacting the first face of the fin means, such that the thermal transfer fluid is in thermal contact with the first and second surfaces; b) a first rotatable electrically conductive non-magnetic fluid impeller contained in a portion of the first interior channel, the first impeller being motivated to rotate by externally generated moving magnetic fields; c) a second composite substrate having a surface, the surface of the second composite substrate for thermally contacting the second face of the fin means, the second composite substrate containing a second interior channel for circulating a thermal transfer fluid, such that the thermal transfer fluid is in thermal contact with the surface of the second composite substrate; d) a plurality of conduits hermetically attached to both the first and the second composite substrates, and flowably connecting the first and the second interior channels; e) a thermal transfer fluid contained within the first interior channel, the second interior channel, and the plurality of conduits; f) a second rotatable fluid impeller external to the first and second composite substrates capable of impelling the atmosphere to flow passed the fin means; and g) a motor means that rotates the second impeller, the motor means generating moving external magnetic fields, whereby the rotation of the first impeller by externally generated moving magnetic fields impels the thermal transfer fluid to circulate through the first closed interior channel in the first composite substrate, so that heat from the heat producing component is transferred through the first surface into the thermal transfer fluid, and heat from the thermal transfer fluid is transferred through the second surface of the first composite substrate through the first face of fin means into the fin means, and whereby the rotation of the first impeller by externally generated moving magnetic fields impels the thermal transfer fluid to circulate through the plurality of conduits and through the second closed interior channel in the second composite substrate, so that heat from the heat producing component is transferred through the first surface into the thermal transfer fluid, and heat from the thermal transfer fluid is transferred through the surface of the second composite substrate through the second face of the fin means into fin means, and whereby the rotation of the second impeller impels atmosphere to pass through the fin means, transferring heat from the fin means into the atmosphere.
Claim 40
Independent Claim 278 words
An apparatus for transferring heat from a heat producing component to the atmosphere, comprising: a) a fin means having a face which can be thermally contacted, the atmosphere being in intimate contact with the fin means; b) a composite substrate containing a closed interior channel for circulating a thermal transfer fluid, the composite substrate having a first and a second surface, the first surface for thermally contacting the heat producing component, and the second surface for thermally contacting the face of the fin means, such that the thermal transfer fluid is in thermal contact with the first and second surfaces; c) a first permanently magnetized rotatable fluid impeller contained in a portion of the closed interior channel, the first impeller being motivated to rotate by externally generated moving magnetic fields; d) a thermal transfer fluid contained within the closed interior channel; e) a second rotatable fluid impeller external to the composite substrate capable of impelling the atmosphere to flow in thermal contact with the fin means; and f) a motor means that rotates the second impeller, the motor means also producing externally generated moving magnetic fields, whereby the rotation of the first impeller by externally generated moving magnetic fields impels the thermal transfer fluid to continuously circulate through the closed interior channel, and heat from the heat producing component is transferred through the first surface into the first thermal transfer fluid, and heat from the first thermal transfer fluid is transferred through the second surface into the fin means, and whereby rotation of the second impeller motivates atmosphere to pass in thermal contact with the fin means, and heat from the fin means is transferred into the atmosphere.
Claim 41
Independent Claim 278 words
An apparatus for transferring heat from a heat producing component to the atmosphere, comprising: a) a fin means having a face which can be thermally contacted, the atmosphere being in intimate contact with the fin means; b) a composite substrate containing a closed interior channel for circulating a thermal transfer fluid, the composite substrate having a first and a second surface, the first surface for thermally contacting the heat producing component, and the second surface for thermally contacting the face of the fin means, such that the thermal transfer fluid is in thermal contact with the first and second surfaces; c) a first permanently magnetized rotatable fluid impeller contained in a portion of the closed interior channel, the first impeller being motivated to rotate by externally generated moving magnetic fields; d) a thermal transfer fluid contained within the closed interior channel; e) a second rotatable fluid impeller external to the composite substrate capable of impelling the atmosphere to flow in thermal contact with the fin means; and f) a motor means that rotates the second impeller, the motor means also producing externally generated moving magnetic fields, whereby the rotation of the first impeller by externally generated moving magnetic fields impels the thermal transfer fluid to continuously circulate through the closed interior channel, and heat from the heat producing component is transferred through the first surface into the first thermal transfer fluid, and heat from the first thermal transfer fluid is transferred through the second surface into the fin means, and whereby rotation of the second impeller motivates atmosphere to pass in thermal contact with the fin means, and heat from the fin means is transferred into the atmosphere.

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