THERMOSTAT FOR BIOLOGICAL SUBSTANCE STORAGE Russian patent published in 2004 - IPC

FIELD: portable devices using cold-storage bodies. SUBSTANCE: thermostat comprises body with door and lock. Work chamber formed of corrosion-resistant material is arranged into body and separated from body by heat-insulation layer. Thermostat has thermoelectric unit for work chamber heating made as three distributed electric heating members, control unit located in individual body, temperature sensors arranged outside working chamber, temperature controller, indicators, continuous current generator, amplifier, comparator circuit and supply power toggle switch. Two heating members are located outside working chamber, the third heating member is arranged under chamber bottom. Body and door are formed of metal. Door is arranged in body wall and has insert made of heat-resistant plastic having black color. Working chamber comprises transparent door and detachable shelves formed as netted trays of corrosion-resistant material. Body wall and chamber wall have magnetic locks. EFFECT: simplified structure, increased reliability and usability. 4 cl, 2 dwg