Sealed outdoor lighting lamp with LED light source module

Abstract

The invention relates to a sealed outdoor lighting lamp with an LED light source module, comprising a sealed hollow housing, a reflecting lamp shade and the LED light source module. The sealed hollow housing is formed by a lamp housing and a transparent lamp shade in a combining way; the reflecting lamp shade and the LED light source module are arranged in the sealed hollow housing; an inner cavity and an outer cavity which are independent of each other are respectively formed between the reflecting lamp shade and the transparent lamp shade and between the lamp housing and the reflecting lampshade; the reflecting lamp shade is provided with a mounting hole and a plurality of air holes, wherein the air holes form an air current channel which is communicated with both the inner cavity and the outer cavity; and inert gas or dry air is filled in the sealed hollow housing, and the pressure outside the sealed hollow housing is kept higher than the pressure outside the sealed hollow housingor vacuum negative pressure is formed in the sealed hollow housing to prevent the fluorescent powder and the silica gel of the LED light source from contacting the moisture and harmful chemical substances in the outside air to degrade the sealed hollow housing. The sealed outdoor lighting lamp with the LED light source module adopts the forced inside air circulation radiation, thereby having goodheat dissipation effect and being capable of effectively lowering the temperature of the LED light source module and the power supply.

Description

technical field [0001] The invention relates to a closed outdoor lighting fixture with an LED light source module. Background technique [0002] The enclosed LED outdoor lighting fixture is composed of a lamp housing, a light source module, and a power supply. It is already known that the existing enclosed LED outdoor lighting fixtures have many deficiencies and need to be improved. In terms of the application of LED light source modules, it includes the improvement of heat dissipation effect, the improvement of optical lighting performance, the adaptation with traditional lamp housings, and the requirements for rapid assembly. [0003] In the prior art, the heat dissipation of the LED light source usually adopts the following methods: First, combine the LED light source with metal heat dissipation components (such as metal heat dissipation substrates, metal heat sinks), and use the heat conduction and heat radiation of the metal heat dissipation components, Through the he...

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Problems solved by technology

[0004] The disadvantages of the heat dissipation method of the above-mentioned LED light source are: metal heat dissipation parts are used for heat dissipation, and a considerable weight of metal materials must be used to increase the cost of the lamp; Cleaning will cause surface pollution and thermal resistance increase of LED light source and power supply, especially when the air contains moisture and harmful chemicals, which will cause deterioration of phosphor and silica gel materials, which is not conducive to the long-term use of LED light source and power supply

[0006] The setting of the above-mentioned power supply has the following disadvantages: the power supply is installed in the lamp body, and the cooling speed through natural convection of the air is slow, which is not conducive to the heat dissipation of the power supply and affects the working life; if the forced convection of the fan is used to dissipate heat, an additional A fan, increasing cost and energy consumption

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