Buried sign lamp light guide plate assembly, method and product

Abstract

The present invention relates to a buried sign lamp light guide plate assembly. The assembly comprises a main plate, two light guide plates corresponding to a left pointing arrow and a right pointingarrow respectively are arranged on the surface of one side of the main plate in parallel in an attached mode, and a light emitting source corresponding to the light guide plates is arranged on the other side of the main plate. The main plate is provided with a light hole for light rays of the light-emitting source to penetrate through. The end of the light guide plate is provided with a reflectionslope for receiving the light rays penetrating through the light hole. A light guide plate and a luminous source are respectively arranged on two sides of the main plate; the light-transmitting holesare formed in the main plate for light transmission, and the light guide plates are attached to the main plate in parallel, so that the requirement for the thickness of an installation space is reduced, the lamp can be made thinner, the light utilization rate is high, the overall power consumption of the lamp is reduced, in addition, the structure is extremely simple, a lamp panel and corresponding wires do not need to be additionally arranged, machining is convenient, and performance is reliable.

Description

technical field [0001] The invention relates to the technical field of fire emergency sign lamps, and more specifically, to a light guide plate assembly, method and product of an underground sign lamp. Background technique [0002] For public places with large planes and large spaces, such as shopping malls, stations, libraries, etc., buried wire type fire emergency sign lamps are usually installed to provide personnel evacuation instructions in the event of a fire. The installation of lamps usually requires pre-embedded installation accessories on the ground, or digging holes after grouting on the ground. Due to the troublesome processing of holes and high time costs, the on-site construction personnel hope that the thickness of the lamps can be thinner, so that the depth of the installation holes on the ground Can be smaller to improve construction convenience; [0003] There are usually two lighting methods for existing buried sign lamps: one is to use a light guide plat...

AI Technical Summary

Problems solved by technology

[0003] There are usually two lighting methods for existing buried sign lamps: one is to use a light guide plate assembly, and a separate light guide plate assembly is installed under different arrow marks. The light guide plate assembly includes a lamp board, an acrylic Accessories such as backlight film and edge banding are connected to the main board through wires. The production and installation of such structural light guide plate components are more complicated, with many materials, high cost, and poor connection reliability of electrical components; the other type is on the main board PCBA. The LED light is directly installed on the bottom shell chamber, and the LED light is scattered in the chamber of the bottom shell, so that the arrow mark on the surface of the lamp emits light evenly. This type of light requires a thicker chamber thickness, and at the same time, the effective utilization rate of the light is low, and the power of the lamp is higher. , the surface brightness of the arrow seen from different angles is not uniform;

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