| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a temperature difference between plural batteries while restraining hunting in switching cooling and heating. <P>SOLUTION: A temperature control device of a battery pack 10 comprises a fan 25 guiding air in a container 30 housing plural batteries 31, and a heater 11 heating the air. The temperature control device comprises: passage switch means 24 for switching a flow for emitting the air guided in the container 30 to the outside and a flow for circulating the air guided in the container 30 into the container 30 through the heater 11; plural temperature sensors 32 detecting the temperature of the batteries 31 respectively; and temperature control means 15e for controlling the temperature of the battery pack 10 on the basis of maximum and minimum temperatures among the temperatures detected by the temperature sensors 32. The temperature control means 15e executes temperature uniform control for circulating the air between the container 30 and the heater 11 by the passage switch means 24 while the heater 11 is deactivated and the fan 25 is activated when a temperature difference between the maximum temperature and the minimum temperature is not less than a first switching temperature difference. <P>COPYRIGHT: (C)2013,JPO&INPIT |
