Dual-power-supply automatic conversion device suitable for ship lifesaving equipment

The utility model relates to a dual-power-supply automatic conversion device suitable for ship lifesaving equipment. The electric control box comprises an electric control box body (1), a main power supply indicating lamp (1HL) and an emergency power supply indicating lamp (2HL) are arranged on the electric control box body (1), and a ship main power supply input connector (1-A), an emergency power supply input connector (1-B) and an output connector (1-C) are sequentially arranged below the electric control box body (1) from left to right; in the process of switching the main power supply tothe emergency power supply, automatic switching is achieved, the main power supply and the emergency power supply are interlocked without manual participation, it is ensured that only one power supplysupplies power under any condition, and the accident of system short circuit caused by simultaneous power supply of the two power supplies is avoided. 本实用新型涉及一种适用于船舶救生设备的双电源自动转换装置，包括电控箱本体（1），在电控箱本体（1）上设置有主电源指示灯（1HL）和应急电源指示灯（2