Emergency power supply device for pellet stove, and pellet stove incorporating emergency power supply device

Abstract

To provide: an emergency power supply device that is for pellet stoves and that enables safe fire extinction and continuous operation even during a power failure; and a pellet stove incorporating theemergency power supply device. An emergency power supply device has: an interruption detection circuit 14 that detects interruption of a commercial power supply; and a delay changeover control unit 15that outputs, to a changeover switch unit 13, a changeover signal that causes a changeover to a first supply line 16 so as to halt power supply to the pellet stove only for a certain period of time,after the elapse of a predetermined period of time from when the interruption detection circuit 14 detects interruption of the commercial power supply. An amount of stored power remaining in a storagebattery 11 after the elapse of the predetermined period of time enables at least the completion of combustion of wood pellets in a combustion chamber.

Description

technical field [0001] The present invention relates to an emergency power supply device used in a pellet heater using wood pellets as fuel, and a pellet heater equipped with the emergency power supply device. Background technique [0002] In recent years, pellet heaters using wood pellets as fuel have attracted attention as environmentally friendly heating appliances using renewable energy. The pellet stove includes a combustion chamber for burning wood pellets supplied from a fuel tank, and an exhaust fan for exhausting combustion gas from the combustion chamber to the outside through an exhaust pipe. Generally, when a pellet heater is plugged into an outlet for supplying commercial electric power, the temperatures in the combustion chamber and the fuel tank are first checked. Then, when these temperatures are abnormally high, only the exhaust fan is driven to lower the temperatures in the combustion chamber and the fuel tank. [0003] Taking the case of power failure as...

AI Technical Summary

Problems solved by technology

[0004] However, when a power outage occurs during the operation of the pellet stove, although the wood pellets are burned in the combustion chamber, the oxygen in the combustion chamber is insufficient because the exhaust fan stops

Therefore, if the front door of the combustion chamber is opened after a power outage and before the power is restored, it may cause backfiring, which is very dangerous.

In addition, there is also the possibility that carbon monoxide caused by incomplete combustion may leak into the room.

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