Edge-lit Downlight Apparatus

Abstract

An edge-lit downlight apparatus includes a surface housing having a base and a side wall, a laminate, and a light guide module. The downlight apparatus includes a circuit board having an inner and an outer surface wall. The downlight apparatus includes first brackets, and each includes a body and a contacting part. The body of the first bracket abuts against the side wall of the surface housing, and the contacting part of the first bracket extends outward from the body and abuts against the laminate. The downlight apparatus includes fasteners passing through the contacting parts of the first brackets, the laminate, and being removably connected to the surface housing. LED chips are located on the inner surface wall of the circuit board.

Description

FIELD[0001]The present invention is related to a downlight apparatus, and more particularly related to an edge-lit downlight apparatus.BACKGROUND[0002]A conventional edge-lit downlight apparatus generally has the following drawbacks:[0003]1) Generally the surface ring of a traditional edge-lit downlight apparatus is manufactured by the die-casting process so as to ensure it passes the Temperature Rise Test. However, the die-casting process is complex, time-consuming, and costly.[0004]2) For a traditional edge-lit downlight apparatus, only screws are used to press the laminate against the optical components. The performance of light emission is not satisfactory.[0005]3) Conventionally, the edge-lit downlight apparatus is mounted on the ceiling via a bracket and screws. Such installation method is inefficient and requires more installation time, which leads to higher installation cost.[0006]4) The downlight apparatus is usually not waterproof or the waterproof level is not high, which...

AI Technical Summary

Benefits of technology

[0007]The present disclosure provides an edge-lit downlight apparatus configured with a reasonable structure, good heat dissipation effect and good light-emitting effect.

[0020](1) The circuit board provided with the light module and the surface housing are adhered by heat dissipation material (e.g., heat dissipation tape or heat dissipation gel) so as to enhance the heat dissipation performance.

[0021](2) The first brackets engage with the fasteners to increase the contact area, so that the positioning between the components may be more precise and firmer. In this way, the misalignment or gap of the optical components due to assembly issues may be avoided. It can be understood that such misalignment or gap may cause water ripple, which results in poor light-emitting effect. With the configuration proposed by the present disclosure, the optical efficiency and light quality may be greatly enhanced.

Problems solved by technology

1) Generally the surface ring of a traditional edge-lit downlight apparatus is manufactured by the die-casting process so as to ensure it passes the Temperature Rise Test. However, the die-casting process is complex, time-consuming, and costly.

2) For a traditional edge-lit downlight apparatus, only screws are used to press the laminate against the optical components. The performance of light emission is not satisfactory.

3) Conventionally, the edge-lit downlight apparatus is mounted on the ceiling via a bracket and screws. Such installation method is inefficient and requires more installation time, which leads to higher installation cost.

4) The downlight apparatus is usually not waterproof or the waterproof level is not high, which limits the scope of use. Also, there may be safety concerns in some applications.

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