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Isolation chamber for electronic devices

  • US 4,259,843 A
  • Filed: 10/09/1979
  • Issued: 04/07/1981
  • Est. Priority Date: 10/09/1979
  • Status: Expired due to Term
First Claim
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1. An isolation chamber for providing a controlled environment for an electronic device, comprising:

  • a rigid outer support shell formed of thermally conductive material with outer heat exchange means exposed to the external environment;

    a plurality of inner heat exchange means positioned inside the isolation chamber defining a temperature controlled central region for receiving the electronic device;

    thermal insulation means positioned inside the isolation chamber between the outer support shell and the inner heat exchange means;

    a plurality of thermally conductive standoff means extending from the outer shell through the insulation means to the plurality of inner heat exchange means forming a plurality of heat conductive paths therebetween;

    a plurality of heat pump means, one positioned in each of the plurality of heat paths for controlling the temperature of the central region by supporting heat flow along the conductive paths when energized and inhibiting heat flow along the conductive paths when not energized;

    an internal atmosphere within the central region for supporting convection heat currents which transfer heat between the electronic device and the inner heat exchange means;

    circulation means within the central region for moving the internal atmosphere therein; and

    power means for providing electric power to the electronic device and to the heat pumps.

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