Light-emitting component and light-emitting drive circuit of audible and visual alarm

Abstract

The invention discloses a light-emitting component and a light-emitting drive circuit of an audible and visual alarm. The light-emitting component comprises a light-emitting body and a light reflecting base, wherein the light-emitting body is attached to the inner surface of the light-emitting body, the light-emitting body comprises a flexible LED light-emitting sheet, the light-emitting sheet comprises a plurality of LED matrix composite structures, and each LED is welded on a flexible PCB plate; and the light reflecting base protrudes from the bottom to the top surface, and the side part comprises a plurality of spacing holes which are fixed on the LED light-emitting sheet. The light-emitting drive circuit comprises a power supply module for providing the input voltage and an audible and visual alarm module for emitting an alarm signal under the effect of the drive voltage. The drive circuit comprises an energy storage module which is connected with one end of the power supply module and is used for storing the energy under the effect of the power supply module input voltage, and a pressurization module connected in parallel to the energy storage module and the audible and visual alarm module separately. According to the invention, the work efficiency of the audible and visual alarm is improved more than one time than the work efficiency of audible and visual alarm in the prior art. Compared with the audible and visual alarm in prior art with the same output power, the load amount and the alarm time of the audible and visual alarm of the invention are double.

Description

technical field [0001] The invention relates to the field of fire fighting equipment, in particular to an alarm that can emit sound and light at a fire scene. Background technique [0002] Sound and light alarms are mainly used in places where fire alarms are required. When a fire occurs on the scene, it can be activated by the fire alarm controller in the fire control center to send out a strong sound and light alarm signal to remind the on-site personnel to pay attention. The energy distribution of the illuminant light source of the existing sound and light alarm is not uniform, cannot be distributed according to needs, and the luminous efficiency is low. In the existing light-emitting drive circuit, the output voltage and input voltage are unstable. When the output voltage is lower than the input voltage, the circuit must be disconnected, otherwise accidents will occur. Contents of the invention [0003] The technical problem to be solved by the present invention is to...

AI Technical Summary

Problems solved by technology

The energy distribution of the illuminant light source of the existing sound and light alarm is uneven, which cannot be distributed according to needs, and the luminous efficiency is low

In the existing light-emitting drive circuit, the output voltage and input voltage are unstable. When the output voltage is lower than the input voltage, the circuit must be disconnected, otherwise accidents will occur

Images