CN202532329U - High-pressure injection molding light emitting diode (LED) module - Google Patents

Abstract

The utility model discloses a high-pressure injection molding LED module, which belongs to the application field of LED module lighting technology. It specifically includes the PCB aluminum substrate and the LED lamp beads welded on the PCB aluminum substrate. The round cup groove is provided with drainage grooves around the round cup groove, and also includes screw holes passing through the PCB aluminum substrate and the plastic layer. The utility model has the advantages of good sealing performance and high protection level; it can prevent water from stagnating on the LED module and has a long service life.

Description

A high-pressure injection molding LED module

【Technical field】

The utility model relates to the technical application field of LED modules, in particular to a high-pressure injection molding LED module.

【Background technique】

In the LED application industry, due to its small size, energy saving, long life, high brightness and other advantages. Therefore, it has been widely used as a light source in advertising sign lights, such as letter lights, signboard lights, advertising light boxes and other fields.

Traditional LED modules mainly use epoxy resin or silica gel for protection. Due to their shortcomings such as UV resistance and easy aging, after long-term work, the protection level of LED modules will be greatly reduced, which will greatly reduce the protection of LED modules. service life. Furthermore, LED modules are generally fixed by pasting double-sided tape on the back, which is easy to fall off and damaged due to gravity and long-term work of the LED module itself; This fixing method may cause loosening due to the diameter of the screw and mechanical problems.

【Content of invention】

In order to solve the above-mentioned existing technical problems, the utility model provides an LED module with good sealing performance, high protection level and good reliability.

The technical solution adopted by the utility model to solve the technical problem is: a high-pressure injection molding LED module, including a PCB aluminum substrate and an LED lamp bead welded on the PCB aluminum substrate. The plastic layer of the PCB aluminum substrate, the plastic layer is located above the LED lamp bead and designed as a round cup groove, and also includes screw holes passing through the PCB aluminum substrate and the plastic layer.

As a further improvement of the utility model, a drainage groove is arranged around the round cup groove to prevent water from stagnating on the LED module, thereby improving the service life of the LED module.

As a further improvement of the utility model, the screw hole is a chrysanthemum-shaped screw hole, which has a better fixing effect.

As a further improvement of the utility model, the inner structure of the chrysanthemum-shaped screw hole is uniformly provided with several bosses, and the distance between the upper end of the bosses and the screw hole is 1-3mm.

A high-pressure injection LED module described in the utility model has the beneficial effects of: the high-pressure injection plastic layer has good sealing performance and high protection level; a drainage groove is provided to prevent water from staying on the LED module, thereby ensuring The service life of the LED module; the use of chrysanthemum-shaped screw holes makes the LED module more stable and better in reliability; the production process is simple and the production efficiency is improved.

【Description of drawings】

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Fig. 2 is a top view of the embodiment of the utility model.

Fig. 3 is a sectional view along line A-A of Fig. 2 .

FIG. 4 is a rear view of FIG. 2 .

Explanation of reference signs: 1. Plastic layer, 2. Cup groove, 3. Drainage groove, 4. Screw hole, 5. Lead wire, 6. PCB aluminum substrate.

【Detailed ways】

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

The utility model provides a high-pressure injection molding LED module, as shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, which mainly includes: a plastic layer (1), a round cup groove (2), a drainage groove (3), screws hole (4), wire (5), PCB aluminum substrate (6).

Specifically, the high-pressure injection LED module described in the utility model includes a PCB aluminum substrate (6) and LED lamp beads (not marked in the drawings) welded on the PCB aluminum substrate (6); The plastic layer (1) that is injection-molded and wraps the PCB aluminum substrate (6) has good sealing performance and high protection level; the plastic layer (1) is located above the LED lamp beads and is designed as a round cup groove (2 ), which is conducive to the outward scattering of LED light; it also includes a screw hole (4) passing through the PCB aluminum substrate (6) and the plastic layer (1), the screw hole (4) is a chrysanthemum-shaped screw hole, which makes the LED module more Stable and better reliability; its inner structure is evenly provided with several bosses, the upper end of the bosses is 1-3mm away from the screw hole; the round cup groove (2) is surrounded by drainage grooves (3) , to prevent water from staying on the LED module, so as to ensure the service life of the LED module; the wire (5) of the utility model adopts Teflon wire, which has high fire resistance and excellent weather resistance, and other materials also use resistance combustible material. Therefore, the utility model is also suitable for places with higher safety requirements such as PetroChina and Sinopec.

The above-mentioned embodiments are descriptions of the present utility model, and the descriptions are more specific and detailed, but are not intended to limit the technical content. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model.

Claims (4)

1. A high-pressure injection molding LED module, comprising a PCB aluminum substrate and LED lamp beads welded on the PCB aluminum substrate, characterized in that: it also includes a plastic layer formed by high-pressure injection molding and wrapping the PCB aluminum substrate, the plastic layer and is located above the LED lamp bead and is designed as a round cup groove, and also includes screw holes that pass through the PCB aluminum substrate and the plastic layer. 2. The high-pressure injection molding LED module according to claim 1, wherein a drainage groove is arranged around the round cup groove. 3. The high-pressure injection molding LED module according to claim 1, wherein the screw holes are chrysanthemum-shaped screw holes. 4. The high-pressure injection LED module according to claim 3, characterized in that: the inner structure of the chrysanthemum-shaped screw hole is evenly provided with several bosses, and the distance between the upper end of the bosses and the screw hole is 1-3mm . the

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