| CPC F25B 21/02 (2013.01) [H10N 10/17 (2023.02); F25B 2321/021 (2013.01); F25B 2321/023 (2013.01); F25B 2321/0251 (2013.01)] | 2 Claims |
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1. A system for portable temperature control, comprising:
a thermally insulated housing with air circulation openings and a raised guard maintaining spacing for the openings to maintain air circulation;
a payload container;
a thermoelectric engine, the engine comprising:
one or more thermoelectric converters, each having a hot side and a cold side;
a hot side circulation housing to circulate a first fluid between ambient and the hot side(s) of the one or more thermoelectric converters;
a cold side circulation housing to circulate a second fluid between the cold side(s) of the one or more thermoelectric converters and the payload container;
wherein the cold side circulation housing comprises:
a set of isolators interior to the cold side circulation housing, where the set of isolators comprises:
a first isolator disposed at an inlet to the cold side circulation housing, and
a second isolator disposed at an outlet to the cold side circulation housing; and
a set of actuators in communication with the set of isolators and configured to control a flow path of the second fluid, where each isolator of the set of isolators is associated with at least one actuator of the set of actuators;
a power source in electrical communication with the thermoelectric converters and the set of actuators; and
a control circuit in electrical communication with the thermoelectric converters, the set of actuators, and the power source;
wherein the set of isolators is configured to have an open position and a closed position, where the closed position stops all circulation of the second fluid to reduce heat leakage into the payload container.
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