Mining explosion-proof LED (light-emitting diode) emergency light

A kind of LED emergency light, mining explosion-proof technology, applied in the direction of electric light circuit layout, lighting device, light source, etc., can solve the problems of short battery life, uneven brightness, low safety, etc., to improve the service life, good heat dissipation effect, The effect of high safety and reliability

Inactive Publication Date: 2013-01-09
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of short light source life, uneven brightness, short battery life and low safety of the existing explosion-proof emergency lights for mines, the present invention proposes an explosion-proof LED emergency light for mines

Method used

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  • Mining explosion-proof LED (light-emitting diode) emergency light
  • Mining explosion-proof LED (light-emitting diode) emergency light
  • Mining explosion-proof LED (light-emitting diode) emergency light

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with specific embodiments.

[0022] figure 1 It shows a general block diagram of mine explosion-proof emergency lamp circuit according to one embodiment of the present invention. Such as figure 1 As shown, the circuit control system of mine explosion-proof emergency lights includes underground alternating current 12, voltage detection circuit 13, rectification filter circuit and chip startup circuit 14, battery charge and discharge circuit 15, battery pack 16, output switch 17, LED constant current drive circuit 18 and LED lamp group 19.

[0023] The downhole alternating current 12 is stepped down, rectified, and filtered by the rectification filter circuit and the chip startup circuit 14 to obtain a stable DC voltage, and the battery pack 16 is charged by the charging circuit in the battery charging and discharging circuit 15 , the other way of downhole alternating current 12 is output to the vol...

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Abstract

The invention discloses a mining explosion-proof LED emergency light. An explosion-proof box body (11) and a light holder casing (6) are used as a radiating channel, radiating fins are arranged on the outside of an aluminum alloy casing, and radiation is achieved through natural convection of air. A circuit portion includes an underground alternating current (12), a voltage detection circuit (13), a rectifier filter circuit and chip enabling circuit (14), a battery charge and discharge circuit (15), a storage battery (16), an out switch (17), an LED constant current driving circuit (18) and an LED light set (19). LEDs are utilized as light sources and have the advantages of high light emitting efficiency, low power consumption, high safety and reliability, environment-friendliness and the like. The explosion-proof box body is compact in structure and good in radiating effect, so that the mining explosion-proof LED emergency light is high in safety and reliability. LED constant current driving is adopted, uneven brightness of the battery due to voltage variation is avoided, and the service life of the LED is prolonged.

Description

technical field [0001] The invention relates to the technical field of mine emergency lighting, in particular to an explosion-proof emergency light that can automatically switch to a backup battery in the event of an underground power failure and can illuminate for a long time. Background technique [0002] Mine explosion-proof emergency lights refer to lamps that can provide lighting for a certain period of time for temporary emergency needs after the normal power supply in the mine is cut off. The emergency lights currently used are mainly self-contained power supply independent control type. The normal power supply is connected to the underground AC power supply circuit. The battery of the emergency light is usually charged. When the normal AC power supply is cut off, the backup power supply is automatically powered by the battery. [0003] Most of the existing mine explosion-proof emergency lights use traditional light sources such as halogen lamps, incandescent bulbs, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 李中凯郭强崔海龙白涛王瑞千红涛
Owner CHINA UNIV OF MINING & TECH
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