| 摘要 |
PROBLEM TO BE SOLVED: To suspend the timing to exchange a battery of a battery type heating device comprising a plurality of loads.SOLUTION: The battery heating device comprises: the battery; a voltage detection part for detecting an output voltage of the battery; the plurality of loads which are operated with the battery as a power source; a control part which inhibits the operations of the plurality of loads if the output voltage detected by the voltage detection part becomes lower than a reference voltage; and a storage part for previously storing a drop voltage of the output voltage during the operation of each of the plurality of loads. If there are a plurality of loads of operation objects among the plurality of loads, in the case where a predictive voltage obtained by subtracting a sum of the drop voltages of the loads of the operation objects from the output voltage is equal to or higher than the reference voltage, the control part permits the loads of the operation objects to operate and in the case where the predictive voltage is lower than the reference voltage, on the other hand, the control part restricts or inhibits the operations of at least a part of the loads of the operation objects.SELECTED DRAWING: Figure 5 |
