CN204717450U - LED module, LED string and one side advertising lamp box - Google Patents

Abstract

The utility model is applicable to ad decoration lighting technical field, provides a kind of LED module, LED string and one side advertising lamp box.This LED module comprises at least one circuit board, the LED lamp bead be welded on each circuit board, be fixedly installed on each circuit board and the diffuser covered at above corresponding LED lamp bead and by integrated injection molding and around the injection moulding matrix be coated on around diffuser and circuit board; Each circuit board comprises first surface and second surface, and the bottom surface of injection moulding matrix flushes with second surface; Injection moulding matrix is provided with the light hole corresponding with the exiting surface of diffuser, and the hole wall of light hole is the cambered surface outwardly tilted along diffuser.This LED module utilize through integrated injection molding injection moulding matrix by diffuser and circuit board coated, to make LED module, there is integrated injection molding water-proof function; And utilize diffuser to cover at above LED lamp bead to protect LED lamp bead, avoid LED lamp bead impaired.

Description

LED modules, LED light strings and single-sided advertising light boxes

technical field

The utility model belongs to the technical field of advertising decoration lighting, in particular to an LED module, an LED lamp string with the LED module and a single-sided advertising light box with the LED lamp string.

Background technique

In the LED application industry, advertising light boxes are an important medium for outdoor advertising. With the development of the advertising industry, their demand is also increasing.

Most of the existing small light box characters in advertisements use 3528 light sources. Although the size fits the stroke size of the light box characters, the brightness of the light source itself is low, which makes the brightness of the luminous characters themselves insufficient, thereby increasing the amount of light source and greatly increasing the installation cost. Moreover, there are also the following defects: the LED lamp beads in the LED module are not protected, and there is a problem of easy damage; the LED module cannot achieve long-term effective waterproofing.

Utility model content

The purpose of the utility model is to provide an LED module, aiming at solving the technical problems in the prior art that the LED lamp beads in the LED module are not protected, which leads to easy damage and poor waterproof effect.

The utility model is achieved in this way. An LED module includes at least one circuit board, LED lamp beads welded on each of the circuit boards, fixedly mounted on each of the circuit boards and covered on the corresponding The light-transmitting cover above the LED lamp bead and the injection-molded matrix surrounding and covering the light-transmitting cover and the circuit board through integral injection molding; each of the circuit boards includes a first surface provided with the LED lamp bead and a second surface opposite to the first surface, the bottom surface of the injection molding base body is flush with the second surface; the injection molding base body is provided with a light exit hole corresponding to the light exit surface of the light transmission cover, and the The hole wall of the light outlet hole is an arc surface inclined outward along the outer surface of the light transmission cover.

Further, a positioning post is provided at the bottom of the transparent cover, and a positioning hole matching the positioning post is provided on the circuit board.

Further, connecting wires are pasted and welded on each of the circuit boards, and the connecting wires are drawn out along the first surface of the circuit boards to the side of the injection molding base and connected in parallel with the power supply terminals.

Further, the injection molding base is provided with mounting holes for fitting with fasteners.

Further, the injection molding base is provided with two light exit holes, and corresponding to the light exit holes are a light transmission cover, an LED lamp bead and a circuit board.

The utility model also provides a light string, comprising a plurality of LED modules connected in parallel, and each LED module is the LED module described in any one of the above items.

The utility model also provides a single-sided advertising light box, which comprises a plurality of above-mentioned light strings.

Compared with the prior art, the technical effect of the utility model is that the LED module covers the light-transmitting cover and the circuit board with an injection-molded injection matrix, so that the LED module has an integral injection molding waterproof function; and the light-transmitting cover is used to cover the LED lamp bead to protect the LED lamp bead and prevent the LED lamp bead from being damaged.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the embodiments of the present invention or in the description of the prior art. Obviously, the accompanying drawings described below are only illustrations of the present invention For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the perspective view of the LED module provided by the utility model;

Fig. 2 is a sectional view of the LED module in Fig. 1;

Fig. 3 is a front view of the LED module in Fig. 1;

Fig. 4 is another sectional view of the LED module in Fig. 1;

Fig. 5 is a side view of the LED module in Fig. 1 .

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to FIG. 1 to FIG. 5 , the LED module provided by the embodiment of the present invention includes at least one circuit board 10 , LED lamp beads 20 welded on each of the circuit boards 10 , fixedly installed on each of the circuit boards 10 and cover the transparent cover 30 above the corresponding LED lamp bead 20 and the injection molding base 40 that is integrally injection molded and surrounds the transparent cover 30 and the circuit board 10; each of the circuits The board 10 includes a first surface 12 provided with the LED lamp beads 20 and a second surface 14 opposite to the first surface 12, the bottom surface of the injection molding base 40 is flush with the second surface 14; The injection molded base 40 is provided with a light exit hole 42 corresponding to the light exit surface of the light transmission cover 30 , and the wall of the light exit hole 42 is an arc surface inclined outward along the outer surface of the light transmission cover 30 .

The LED module provided by the embodiment of the present invention utilizes the integrally injection-molded injection base 40 to cover the light-transmitting cover 30 and the circuit board 10, so that the LED module has an integrally injection-molded waterproof function; and The transparent cover 30 is used to cover the LED lamp bead 20 to protect the LED lamp bead 20, avoid damage to the LED lamp bead 20, and improve the processing yield of the LED module.

In this embodiment, the light-transmitting cover 30 is made of PC material, and the light-emitting end of the light-transmitting cover 30 facing the LED light bead 20 is spherical to ensure the light-emitting angle of the LED light bead 20 . The hole wall of the light exit hole 42 is inclined outward along the outer surface of the light-transmitting cover 30 and has an arc surface, and the periphery of the hole wall diffuses toward the injection molding plane of the injection molding base 40 , which improves the heat dissipation of the LED lamp bead 20 Effect.

Referring to FIG. 2 , further, the bottom of the transparent cover 30 is provided with a positioning post 32 , and the circuit board 10 is provided with a positioning hole 16 matching with the positioning post 32 . During installation, the positioning column 32 is inserted in the positioning hole 16 to fix the light-transmitting cover 30 on the circuit board 10, and place the circuit board 10 with the light-transmitting cover 30 installed on it. into the concave mold to surround the circuit board 10 and the light-transmitting cover 30, and use PC material to integrate the cavity wall of the cavity and the position between the circuit board 10 and the light-transmitting cover 30 The LED module with the injection molding base 40 is formed by injection molding.

Please refer to FIG. 1 to FIG. 4 , further, each of the circuit boards 10 is pasted and welded with connecting wires 50 , and the connecting wires 50 connect to the injection molded base 40 along the first surface 12 of the circuit board 10 . It is drawn out from the side and connected in parallel with the power supply terminal. The connecting wires 50 are led out from one side of the injection molding base 40, and each of the connecting wires 50 is connected in parallel to the outlet of the power supply. When in use, multiple LED modules can be connected in parallel, which can be 20 The LED modules are connected in a string and can be cut and replaced.

Please refer to FIG. 1 to FIG. 3 , further, the injection molding base 40 is provided with a mounting hole 44 for fitting with a fastener. Fasteners such as screws or rivets are used to pass through the installation holes 44 to fix the LED module on the installation object, which has a simple structure and is easy to install.

Please refer to FIG. 1 to FIG. 4 , further, the injection molding base 40 is provided with two light exit holes 42 , corresponding to the light exit holes 42 are a transparent cover 30 and a LED lamp bead. 20 and a circuit board 10. During injection molding, the two circuit boards 10 are arranged side by side, and one of the LED lamp beads 20 is welded and one of the transparent cover 30 is fixed respectively, so the structure is simple.

The LED module provided by the embodiment of the utility model is suitable for small luminous characters. The LED module has the advantages of small size and high brightness, is suitable for small-stroke light-emitting characters, and overcomes the defects of insufficient brightness and excessive size of the LED module in small-stroke light-emitting characters in the prior art.

The light string provided by the embodiment of the present invention includes a plurality of LED modules connected in parallel, and each of the LED modules is the LED module described in any one of the above. The LED module in this embodiment has the same structure and function as the LED modules provided in the above-mentioned embodiments, which will not be repeated here.

The single-sided advertising light box provided by the embodiment of the utility model includes a plurality of above-mentioned light strings. The light string provided by this embodiment has the same structure and function as the light strings provided by the above embodiments, which will not be repeated here.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (7)

1. a LED module, it is characterized in that, comprise at least one circuit board, the LED lamp bead be welded on each described circuit board, to be fixedly installed on each described circuit board and the diffuser covered at above corresponding described LED lamp bead and by integrated injection molding and around the injection moulding matrix be coated on around described diffuser and described circuit board; Each described circuit board comprises the first surface and the second surface relative with described first surface that are provided with described LED lamp bead, and the bottom surface of described injection moulding matrix flushes with described second surface; Described injection moulding matrix is provided with the light hole corresponding with the exiting surface of described diffuser, and the hole wall of described light hole is the cambered surface outwardly tilted along described diffuser.

2. LED module as claimed in claim 1, it is characterized in that, the bottom of described diffuser is provided with locating dowel, and described circuit board is provided with the locating hole coordinated with described locating dowel.

3. LED module as claimed in claim 1, is characterized in that, each described circuit board pastes and is welded with connection wire, and described connection wire is drawn along the described first surface of described circuit board to the side of described injection moulding matrix and is connected in parallel with power outlet.

4. LED module as claimed in claim 1, it is characterized in that, described injection moulding matrix is provided with the installing hole with appended claims.

5. the LED module as described in Claims 1-4 any one, is characterized in that, described injection moulding matrix is provided with two described light holes, and corresponding with described light hole is circuit board described in LED lamp bead and described in diffuser, described in.

6. a LED string, comprises multiple LED module be connected in parallel, it is characterized in that, each described LED module is the LED module as described in claim 1 to 5 any one.

7. an one side advertising lamp box, is characterized in that, comprises multiple lamp string as claimed in claim 6.