TEMPERATURE CONTROL SYSTEM OF NAS BATTERY

摘要

PURPOSE:To prevent reaching the hazardous temperature even though a NaS battery is in current feed state and eliminate necessity for any greater warm keeping power even when the NaS battery is in the pause state. CONSTITUTION:The degree of vacuum between double wall surfaces of a vacuum heat-insulated vessel 1 is made adjustable by a solenoid valve, and the heat radiation amount of the vessel 1 is controlled by varying the pressure in the current feed state from pause state, and thereby the temp. of the NaS battery is kept approx. constant.