| 摘要 |
An electronic fireproof door lock is provided to enable an emergency release of dead and latch bolts by preventing inner components from being burnt down, when fire breaks out. An electronic fireproof door lock(1) includes a locking unit(3), an indoor manipulation unit(5), and an outdoor manipulation unit. The locking unit is embedded in a door(10). The indoor manipulation unit is integrated inside the locking unit. The locking unit includes a case(11), a thermoelectric element panel, and a heat/gas sensor(43). The thermoelectric element panel, which encloses inner components and a circuit board(29), cools down an inner space of the case, when the locking unit is heated up. The heat/gas sensor detects an external heat or gas.
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