Intrinsically safe emergency lighting device based on tunnel piston effect

• Main Authors: DU ZHANGDING, NOH SUNG-WON, HU CAIXIA, LIAO HAOMING, HE RUNCHENG, ZHAO TIANJI, SUN JUNJIE, LIAO DAQI, ZHANG WENKANG
• Format: Patent
• Language: Chinese; English
• Published: 05.07.2022
• Subjects: BLASTING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; GENERATION; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS FOR STORING ELECTRIC ENERGY; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The invention discloses an intrinsic safety emergency lighting device based on a tunnel piston effect, which comprises a lamp bead, an electric power system and a switching system, the switching system is connected in series between the lamp bead and the electric power system, and the electric power system comprises a battery mounted in a lighting lamp shell and a power supply module for supplying power to the lighting lamp; the switching system is used for switching one of the battery or the power supply module to provide power for the lamp bead; by installing the electric quantity detector on the battery to detect the electric quantity of the battery, the electric quantity in the battery is detected at any time, when the battery is lack of electricity, under the condition that the illuminating lamp works normally, the battery is charged preferentially, it is guaranteed that the battery is kept in a full-electricity state at any time, and the phenomenon that the battery is lack of electricity in an emergency