Active fire extinguishing device

Abstract

The invention discloses an active fire extinguishing device. The active fire extinguishing device comprises a box body, a box cover, a switching assembly and a fire extinguishing medium carrier. The box body is provided with an opening. The box cover is connected with the box body so as to open and close the opening. The switching assembly is connected with the box body and the box cover. The switching assembly comprises a memory alloy piece with the volume capable of being changed along with temperatures. The memory alloy piece can drive the box cover to move so as to open the opening when the temperature of the memory alloy piece reaches a preset value. The fire extinguishing medium carrier is movably arranged inside the box body so that the fire extinguishing medium carrier can drop off from the box body when the opening is opened. According to the active fire extinguishing device in the embodiment of the invention, active fire extinguishing can be achieved, no manual fire extinguishing is required, and household safety is improved; and moreover, the active fire extinguishing device is low in cost during implementation, and the using reliability is higher.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to an active fire extinguishing device. Background technique [0002] With the development of science and technology, smart home is favored by people, and the safety of home is also paid more attention to by people, especially the fire safety of home is the most important. In the concept of intelligent kitchen, all kinds of intelligent devices in the kitchen not only need to provide convenience for people's life, but also need to ensure the safety of home. [0003] In related technologies, when there is a fire around the range hood, it cannot automatically extinguish the fire. Especially when there is a fire around the stove, the range hood cannot actively extinguish the fire, and the user needs to actively extinguish the fire. This fire extinguishing method delays the last time. A good fire extinguishing time is likely to cause accidental injury to the user and unnecessary...

AI Technical Summary

Problems solved by technology

[0003] In related technologies, when there is a fire around the range hood, it cannot automatically extinguish the fire. Especially when there is a fire around the stove, the range hood cannot actively extinguish the fire, and the user needs to actively extinguish the fire. This fire extinguishing method delays the last time. A good fire extinguishing time is likely to cause accidental injury to the user and unnecessary property loss

[0004] In the related art, by adding a temperature sensor and a smoke sensor on the range hood, the temperature and smoke near the range hood are monitored, so that when the temperature and smoke reach a predetermined value, the fire is extinguished. However, this passing temperature The method of fire extinguishing by monitoring the sensor and smoke sensor is costly to implement, which increases the production cost of the range hood, and the error and accuracy of the temperature sensor and smoke sensor are difficult to control, and obvious deviations are prone to occur during use , brings unexpected troubles to the use of range hoods, and it is difficult to implement this fire extinguishing method on range hoods

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