Outdoor illuminating device

Abstract

The structure of an outdoor illuminating device is that a lamp housing is arranged on a base plate, a light-emitting piece of a light source module is arranged under the base plate, a heat dissipation piece of the light source module is arranged between the base plate and the lamp housing, a light permeable cover is arranged at the lower portion of the base plate in a covering mode and is fixedly connected with the base plate through fasteners to form a closed containing chamber which can prevent water from entering the chamber, the light-emitting piece is placed inside the containing chamber, the heat dissipation piece is placed outside the containing chamber, and therefore the outdoor illuminating device is formed.

Description

technical field [0001] The invention belongs to the technical field of lighting devices, and in particular relates to an outdoor lighting device. Background technique [0002] The application of announcement No. M364181 (an LED lamp and its closed heat dissipation device) discloses an LED lamp (as shown in the first figure). In actual use, the lampshade (40a) has equal heat dissipation holes ( 41a), so outside dust, dust or water vapor can enter the lampshade (40a) through the heat dissipation holes (41a), and remain and accumulate in the LED lamp group (10a) and heat spreader (20a) Or on the heat dissipation fin group (30a) to cover its heat dissipation area, thereby affecting the heat dissipation performance of the LED lamp. [0003] Therefore, in this application, the radiator (40) is pasted on the inner wall surface of the lampshade (60), and the heat energy is quickly conducted away with the surface area of ​​the radiator (40) and the lampshade (60), so as to greatly i...

AI Technical Summary

Problems solved by technology

[0004] However, the airtight space (61) formed by the lampshade (60), the frame (10) and the heat conduction plate (20) maintains its internal cleanliness to achieve dustproof and waterproof effects, but the lampshade (60) The interior also has the problem of poor heat dissipation due to airtightness; in other words, after the LED module (30) is energized and emits light, although heat energy can be conducted to the fin group (41), heat-conducting medium (50) and the on the lampshade (60), but because the lampshade (60)

[0005] It must be completely sealed in the lampshade (60) to allow the heat energy to be completely retained in the lampshade (60), and it must be completely cooled by the heat exchange between the lampshade (60) and the outside world, except that it will cause the lampshade (60) to become quite hot, and simply use the lampshade The heat exchange of (60) achieves the heat dissipation effect, which loses the significance of setting up the fin group (41) to achieve rapid heat dissipation, and will still cause the LED module (30) to operate under high heat and be easily damaged due to poor heat dissipation. question

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