Injection moulding font advertisement lamp box device and its making method

Abstract

The invention relates to an injection font advertising light box device and a manufacture method thereof, which comprises a shut outer contour cast frame used for forming the font and a plurality of small built-in shut cast frames, wherein an LED lamp circuit board is arranged in the font cavity, a transparent light board is covered over the front face of the font cavity, and a base plate is arranged on the bottom face. The circuit of the integrated LED lamp circuit board of invention is connected by a plurality of LED lamp series units in parallel on the whole circuit board to compose the required font shape, wherein the LED lamp series unit consists of three LED lamps connected in series and a resistance arranged between two adjacent LED lamps. This structure design overcomes the deficiency that the current LED font advertising luminescent font is formed through gluing together a plurality of luminescent units and has the advantages of more convenient and quick manufacture of the luminescent font, beautiful appearance as well as good quality of products and stable and reliable application.

Description

Technical field: [0001] The invention relates to an injection molded font advertising light box device and a manufacturing method thereof. Background technique: [0002] The luminous fonts of the injection molded font advertising light box devices on the existing market are all made up of a plurality of light emitting units 3 (consisting of three LED lamps connected in series) glued together on a base plate (such as figure 1 As shown), the installation and production process is not only complicated, but the efficiency is low, and the cost is high, and the product is composed of light-emitting units patched together and glued together, which is easy to damage. Invention content: [0003] The object of the present invention is to provide an injection-molded font advertising light box device and its manufacturing method. The light box has a reasonable structural design, stable and reliable operation, advanced technology and high production efficiency. [0004] Injection mold...

AI Technical Summary

Problems solved by technology

[0002] The luminous fonts of the injection molded font advertising light box devices on the existing market are all made up of a plurality of light emitting units 3 (consisting of three LED lamps connected in series) glued together on a base plate (such as figure 1 As shown), the installation and production process is not only complicated, low in efficiency, and high in cost, but also the product is composed of light-emitting units patched together and glued together, which is easy to damage

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