Explosion-proof LED (light emitting diode) lighting module and combination thereof

Abstract

The invention provides an explosion-proof LED (light emitting diode) lighting module and combination thereof. The explosion-proof LED lighting module combination comprises at least two explosion-proof LED lighting modules which are mutually connected; each explosion-proof LED lighting module comprises a casing, a cover and an LED metal substrate, wherein the casing and the cover are mutually matched with each other, and the LED metal substrate is arranged in a sealing hollow cavity enclosed by the casing and the cover; an LED light source array formed by a plurality of LED lamps is arranged on each LED metal substrate; wire penetrating holes which are used for cables to pass through to electrically connect with an external power supply or other LED lighting modules are formed on two opposite sides of each casing; and butted components which are mechanically connected with other explosion-proof LED lighting modules are further arranged on the casings. The explosion-proof LED lighting module can be individually used or can be used in combination, and can satisfy lighting requirements of industrial scenes with different illuminations; the explosion-proof LED lighting module is independent in function, excellent in universality and compatibility, convenient to assemble and reconstruct, simple and easy to use, and low in installation, using and maintenance cost.

Description

technical field [0001] The invention relates to a lighting device suitable for explosion-proof workplaces, in particular to a combined explosion-proof LED lighting module. Background technique [0002] Explosion-proof lighting fixtures gradually use LEDs as light sources, which have inherent advantages. First of all, the light source adopts LED chip, which has a long working life (50,000 to 100,000 hours), high luminous efficiency, and natural and pure light color. Military-grade constant-current drive power supply with constant output current (current stability accuracy ±2.5%) ensures a long life of the LED light source; secondly, the power supply adopts a potting type constant-current power supply, and the input and output of the power supply adopt an isolated design, so it does not run Arcs, sparks and dangerous high temperatures will be generated; wide voltage input or DC input, the output is equipped with short circuit, overvoltage and overheat protection to ensure the...

AI Technical Summary

Problems solved by technology

However, the classification of power levels is quite confusing. The power levels of various manufacturers range from 15W to 150W, and there is no subdivision and adaptation for different lighting places, which makes it difficult for users to select models; The gap is very small, so it can only be installed in a large integral flameproof enclosure, which not only reduces the safety performance but also increases the cost, and the heat dissipation is also greatly affected; moreover, the non-modular structure makes maintenance and installation very complicated. All products need to be developed separately, resulting in duplication of research and development costs, causing a lot of waste to the enterprise

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