CN202266932U - Mine explosion-suppressing long area source LED (Light Emitting Diode) roadway lamp - Google Patents

Abstract

The utility model relates to a mine explosion-suppressing long area source LED (Light Emitting Diode) roadway lamp, which is suitable for underground illuminating of coal mines. A plurality of rectangular COB (Chip on Board) packaged LEDs are spliced as a light source; the LEDs are fixed on a radiating aluminum section bar through a high heat-conducting heat-resisting pouring sealant; the radiating aluminum section bar and a shell are connected through a high heat-conducting silicon wafer; excellent radiation of the LEDs is ensured; an explosion-suppressing shell is made of ZL104 aluminum alloy and a contact surface is subjected to explosion-suppressing treatment; an LED driving circuit board is sealed in an explosion-suppressing cavity; a transparent element outside the LED light source is a piece of toughened glass with the thickness more than 4mm, so that the demand of the national coal mine safety sign is met; and the area source LED roadway lamp can be used for underground illuminating (for coal mines) under an explosive gas environment I and safely illuminating under a dangerous environment for storing flammable, explosive and combustible gas.

Description

The microscler area source LED of mine explosion-suppression tunnel lamp

Affiliated technical field

The utility model relates to a kind of flame-proof mine tunnel and uses lighting device, especially has the light fixture of explosion-proof and energy-saving high brightness area source.

Background technology

At present, the mining tunnel lighting device adopts fluorescent tube as illuminating source mostly, though fluorescent lamp is a kind of cheap electricity-saving lamp, fluorescent lamp contains heavy metals such as mercury, and glass tube is broken easily, in case it is very serious to damage pollution on the environment.LED has as a kind of up-to-date lighting apparatus that luminous efficiency height, heavy metal free pollute, to compare common energy-saving fluorescent lamp more energy-conservation, and advantages such as long service life are the optimal selections that substitutes common energy-saving fluorescent lamp.Some is mining, and lighting apparatus manufacturer adopts large-power LED light bead as light source production tunnel lamp; Because the light-emitting area of single lamp pearl has only 7 square millimeters; But luminous flux has but reached more than the 90lm, and the people can't look at straight, makes downhole production have very big potential safety hazard.

Summary of the invention

For overcome fluorescent tube tunnel lamp contain heavy metal and frangible, light efficiency is low; The dazzling shortcoming of light source with common LED tunnel lamp; The utility model provides a kind of microscler area source LED tunnel lamp; This tunnel lamp not only can have higher light efficiency than common energy-saving lamp, and has green energy conservation, the advantage of safety durable; Compare with common LED tunnel lamp simultaneously owing to adopting COB encapsulated LED area source, at the luminous flux that guarantees to have reduced under the constant situation of light efficiency unit are as illuminating source.Drive circuit of the utility model and area source LED are installed in the explosion-proof chamber; When guaranteeing normal illumination, meet the mine explosion-suppression product requirement fully; The spherical relatively tunnel lamp of microscler design is fit to the lighting demand of coal mine roadway more, is more conducive to the coal mine downhole safety operation.

The utility model solves the technical scheme that its technical problem adopted: adopt the flameproof enclosure of ZL104 aluminium alloy as the LED drive plate, and led light source and heat sink section bar are fixed in the annular seal space of safety glass and aluminium alloy composition.Drive circuit is the constant-current circuit that the chip NCP1200 by switching mode designs, and guarantees that LED works under constant current conditions, and brightness stability is constant.

The beneficial effect of the utility model is, relative fluorescence fluorescent tube tunnel this utility model of lamp has improved light efficiency, and is more energy-conservation, and green non-pollution, long service life.Common relatively microscler LED tunnel lamp is under the situation of same light efficiency, and the luminous flux of unit are (being brightness) is lower.

Description of drawings

Accompanying drawing is the overall structure sketch map.Label declaration: 1-end cap, 2-heat conduction silicon chip, 3-protection network, 4-safety glass, the 5-aluminium section bar that dispels the heat, 6-LED light source; The 7-lampshade, 8-connector, 9-wiring board chamber enclosure, 10, circuit board; The 11-cable gland, 12-cable gland, 13-T type closure plate, 14-wire connection cavity shell

The specific embodiment

Shown in accompanying drawing, the described explosion-proof type LED of the utility model tunnel lamp mainly contains led light source 6, heat radiation aluminium section bar 5, circuit board 10, safety glass cover 4, protection network 3 and compositions such as shell, cable fixture.

Shown in accompanying drawing; Circuit board 10 is fixed in the housing through screw; Cable jacket comprises the cable seal circle 11 of acrylonitrile-butadiene rubber, and cable is in 12 introducings of cable gland and wiring board chamber 9, and the cable gland 12 of screwing compresses cable seal circle 11; Make cable and cable seal circle 11 produce interference, make cable be difficult for stretching.The other end is also with sealing ring, steel plate washer, 13 sealings of T type plug, the gland of screwing; Housing and cap are fastening with hex bolts.This a part of design guarantees that utility model has good sealing, flame proof effect.With the high temperature resistant casting glue of high heat conduction the square COB encapsulated LED of three block lengths light source 6 is sticked on the heat radiation aluminium section bar 5; Closely be connected through the heat conduction silicon chip between heat radiation aluminium section bar 5 and the housing; The heat that guarantees the led light source generation is passed to shell fast through the heat radiation aluminium section bar; Through shell heat is dispersed in the air again, thus the service life of prolongation led light source.

The utility model LED tunnel lamp adopts light transmittance greater than 85% safety glass cover 4 and protection network 3; Protection net is fixed on glass lamp shade on the housing boss through screw, has not only guaranteed the requirement of utility model sealing, flame proof but also has guaranteed good illuminating effect.

Claims (3)

1. the microscler area source LED of mine explosion-suppression tunnel lamp; Comprise compositions such as housing, heat radiation aluminium, led light source, drive circuit board, safety glass cover, protective cover; Be characterized in that drive circuit and area source LED are installed in the explosion-proof chamber, when guaranteeing normal illumination, meet the mine explosion-suppression product requirement fully.

2. the microscler area source LED of mine explosion-suppression according to claim 1 tunnel lamp is characterized in that: the rectangle LED splicing of adopting the COB encapsulation is as illuminating source.

3. the microscler area source LED of mine explosion-suppression according to claim 1 tunnel lamp is characterized in that: adopt the high temperature resistant casting glue bonding of high heat conduction between area source and the heat radiation aluminium, guaranteed good heat radiation.