Back to results
US 6,019,165 AGranted
Heat exchange apparatus
OwnerJohn Samuel Batchelderinventor
Life of this patent
Estimating the term…
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.
Claims35
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.
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.
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.
1 more element
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.
5 more elements
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.
4 more elements
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.
5 more elements
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.
4 more elements
Dependencies are inferred from the claim text.