Chip on board (COB) optical module with high level protection and fabrication method thereof

Abstract

The invention provides a chip on board (COB) optical module with high level protection. The COB optical module comprises a circuit substrate, a luminous device, a transparent shell, a filling adhesive, a power supply device and a waterproof wiring female seat, wherein the luminous device, the power supply device and the waterproof wiring female seat are arranged on the circuit substrate, the luminous device is electrically connected with the waterproof wiring female seat through the power supply device, the transparent shell is compacted on the circuit board by a compression molding formation process, an adhesive injection hole is formed in the transparent shell, an external hollow cavity is filled with the filling adhesive, and the waterproof wiring female seat is arranged at the edge of the transparent shell. On the condition of sealing, no air circulation is generated, heat is generated when a power supply works, and the service lifetime of the power supply can be affected if the heat cannot be timely conducted out and the power supply works for a long time; and the filling adhesive has favorable heat conduction effect, the heat of the power supply can be timely conducted out, so that the service lifetime of the COB optical module is longer.

Description

technical field [0001] The invention belongs to the field of light-emitting diode structure packaging, and in particular relates to a high-level protective COB optical module and a preparation method. Background technique [0002] Since the packaging structure of the light emitting diode is an open structure, it does not have sealing performance, and at the same time, it is easily affected by water, dust or polluting gas in the outdoor environment, thereby reducing the service life of the light emitting diode. Generally, for outdoor lighting fixtures, sealant pads or sealant are added to the joints of the shells to protect the internal LED modules. Such a protection method limits the three-dimensional design and design creativity of the lamp housing. It makes the shell of the outdoor lamp dull and has no sense of design. At the same time, because the joint is coated with sealant, it is inconvenient to maintain and replace the internal light source or power supply or the re...

AI Technical Summary

Problems solved by technology

Such a protection method limits the three-dimensional design and design creativity of the lamp housing

Makes the shell of outdoor lamps dull and has no sense of design

At the same time, because the joint is coated with sealant, it is inconvenient to repair and replace the internal light source or power supply or the replacement is easy, which reduces the protective performance of the shell

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