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File #
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MEC No 2008
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Description
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The miniature refrigerator consists of a dc
operated, noise-and vibration-free
unconventional microprocessor-controlled
compressor (HYCOM) which is the key
component operating a conventional
compression/condensation refrigeration
system. The system operates optionally
between 2 and 12 volts and at currents
of 2 to 4 amps. Sub-freezing
temperatures can be achieved by
selecting appropriate fluids.
The components identified in the adjacent
schematic illustrating a microprocessor
chip refrigeration unit are:
- 1 - heat source (microprocessor chip)
- 2 - thermal transfer plate
- 3 - HYCOM
- 4 - compressed refrigerant
- 5 - condenser
- 6 - expander
- 7 - valve
- 8 - power conditioning/control unit
- 9 - line power
- 10 - regulated dc current to the HYCOM
- 11 - Sensor signals (temperature, pressure)
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Advantages
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Since the HYCOM is an efficient compressor,
the systems COP can exceed values of 2
– 3. Another significant feature of
this type of cooling system is the
ability to distribute the HYCOM
components to convenient locations to
meet space constraints.
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Applications
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The
system is particularly well-suited for
thermal loads below 100 watts, an
operating range where electromechanical
compressors are inefficient.
Applications include:
- Thermal Management of:
- Electronic processors
- Electronic circuitry
- Power supplies
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State of Development
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Experimental evaluation of HYCOM as compressor
and actuator. Needs system integration and evaluation.
Publications.
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Rights Available
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Exclusive or non-exclusive.
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Support
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Technology developed. Technical assistance available.
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Patent Status
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Pending and U.S. # 4,402,817; 4,522,698;
4,648,955; 5,149,413; 5,334,304;
5,417,822
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Key Words
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Electrochemical cell, fuel cell, micro-power sources,
air electrodes, oxygen generators, oxygen extractors.
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Contact
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Dr. Henri Maget (ext.14) or Steve Swanson (ext.11)
Med-e-Cell
E-mail: inquiries@medecell.com
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