| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a detector that can detect the actuation of a safety valve.SOLUTION: A detector I provided in a battery unit having a plurality of secondary batteries, each provided with a safety valve 7 being actuated when the internal pressure of a case exceeds a predetermined pressure, and detecting the actuation of the safety valve, includes: a detection circuit 11 consisting of wiring (first wiring 21 and second wiring 22) arranged over the plurality of secondary batteries and facing the safety valve of each secondary battery, and a resistor R; detection means 14 for detecting the resistance value of the detection circuit; and determination means 15 for determining the actuation of the safety valve based on the resistance value.</p> |
