Light-emitting diode (LED) anti-explosion lamp

Abstract

The invention relates to a light-emitting diode (LED) anti-explosion lamp. The LED anti-explosion lamp comprises LEDs, lenses, a radiator, an aluminum-based circuit board, a cover board, a supporting board, a protective shell, a driving circuit and an electric appliance box, wherein a plurality of high-power LEDs are arranged on the aluminum-based circuit board; the aluminum-based circuit board is arranged on the lower surface of the radiator; one lens is arranged on each high-power LED; and the lens is fixedly connected with the radiator through the supporting board and the cover board. The LED anti-explosion lamp adopts the radiating fin type radiator and utilizes the characteristic that the LEDs have small sizes, and the radiator serves as a constituent part of the protective shell, so the whole structure is simple and compact, the manufacturing cost is low, and the volume and the weight of the lamp are reduced. The LEDs are directly arranged below the radiating fins, so the heat conduction distance is short, the sectional area is large, and the heat transfer efficiency is improved. The strength of the glass lens is improved through toughening treatment; the additional protective shell is not required; the light distribution requirement in various occasions is met; and the lamp structure is simplified.

Description

technical field [0001] The invention relates to a lamp with LED as a light source, in particular to an increased safety LED explosion-proof lamp. Background technique [0002] Explosion-proof lamps are special lamps used in explosive environments. Various specific measures taken for electrical equipment to prevent ignition of the surrounding explosive environment are called explosion-proof types, including flameproof enclosure protection, increased safety protection and intrinsic safety protection, etc. (see Chinese National Standard GB836.1-2010). Among them, the safety-increased protection takes additional measures to prevent the possibility of dangerous temperatures, arcs and sparks under normal operation or specified abnormal conditions. [0003] LED is a solid-state light source, which uses DC power supply and has the advantages of high luminous efficiency, long life and small size. With the reduction of LED manufacturing cost, LED has been gradually used in explosion-...

AI Technical Summary

Problems solved by technology

The structure of the heat dissipation system in the above scheme is relatively complicated, because the contact area between the heat pipe or the heat sink and the shell is small, resulting in a large thermal resistance, which affects the overall heat dissipation effect

In the schemes disclosed in Chinese patents CN 201661872U and CN 201443739U, the LED is installed on the base integrated with the shell. Since the distance between the heat source and the outer surface of the shell is long, and the cross-sectional area of ​​the heat transfer base is small, the heat transfer efficiency still not high enough

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