KR20080067893A - Waterproof type led module - Google Patents

Abstract

A waterproof type LED module is provided to improve a heat-radiating effect and to lengthen the lifetime of an LED by using a resin solution having a heat-radiating function. An LED module includes a printed circuit board(110) and a plurality of LEDs(120) attached on a front surface of the printed circuit board. A rear protection plate is installed at the LED module to cover a rear surface of the printed circuit board. One or more holes are formed at each of the LEDs. A front protection plate(220) is installed at the LED module to cover a predetermined region of the front surface of the printed circuit board. A gap between the holes of the front protection layer and the LEDs is filled with a resin solution(300).

Description

Waterproof LED module {Waterproof type LED module}

1 is a photograph showing a state of use of a conventional LED module;

Figure 2 is a photograph for explaining the LED module and the protective plate for the back according to the waterproof LED module according to an embodiment of the present invention;

3 is a photograph for explaining the LED module and the front protective plate according to the waterproof LED module according to an embodiment of the present invention;

Figure 4 is a photograph showing a state filled with a resin solution for the waterproof LED module according to an embodiment of the present invention; And

Figure 5 is a picture showing a state connected to the waterproof LED module using a bracket according to an embodiment of the present invention.

The present invention relates to a waterproof LED module, and more particularly, to a waterproof LED module using a protective plate.

LED modules are widely used for backlighting devices that require lighting devices such as signs. The LED module is divided into an edge type and a direct type according to the position where the LED provides light. The edge type is a method in which the LED is located on the side of the signboard to provide light from the side, and the direct type is a method in which the LED is located at the back of the signboard, etc. to provide light from the back. The edge type provides light only on the side of the signboard, so that the larger the signboard, the more the light is biased on one side, so the development of the direct type without limitation on the size of the signboard is active.

1 is a photograph showing a state of use of a conventional LED module.

Referring to FIG. 1, the structure of the LED module 10 generally includes a printed circuit board (PCB) 11, at least one LED 12 firmly attached to the printed circuit board, and a printed circuit for applying power. It comprises a wire (not shown) or the like connected to both sides of the substrate (11).

However, since the LED module 10 is assembled directly inside a frame 20 or a panel such as a signboard, the waterproof problem has not been solved, so many restrictions have been used for outdoor use. Even if it is installed, the life is shortened due to moisture, which causes a lot of losses.

Therefore, the present invention is to provide a waterproof LED module that can be waterproof even if installed outdoors.

Waterproof LED module according to the present invention for realizing the above object comprises: a printed circuit board and an LED module comprising LEDs attached to the front of the printed circuit board; A rear protective plate installed on the LED module to cover the rear surface of the printed circuit board; At least one hole is formed to expose the LEDs, and the front protective plate is installed on the LED module to cover a predetermined area of the front surface of the printed circuit board.

At this time, the resin solution is filled between the hole of the front protective plate and the LED.

Furthermore, holders for connecting brackets are formed on sides of the front protection plate and the rear protection plate to easily connect with other waterproof LEDs.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a picture for explaining the protection module for the LED module and the back according to the waterproof LED module according to an embodiment of the present invention, Figure 3 is a LED module and the front for a waterproof LED module according to an embodiment of the present invention. Figure 4 is a picture for explaining a protective plate, Figure 4 is a picture showing a state filled with a resin solution for the waterproof LED module according to an embodiment of the present invention, Figure 5 is a waterproof LED module according to an embodiment of the present invention The pictures show the connection status using brackets.

2 and 3, the waterproof LED module according to an embodiment of the present invention consists of a LED module 100 and a protective plate surrounding the LED module.

As is well known, the LED module 100 includes a printed circuit board 110, LEDs 120 attached to a front surface of the printed circuit board, a power supply wire (not shown), and the like.

The protection plate is a rear protection plate 210 installed on the LED module 100 to cover the back of the printed circuit board 110 and the LED module 100 to be located on the front of the printed circuit board 110. ) Consists of a front protective plate 220 to be installed, and is installed using a bolt or the like. At this time, in order to prevent the LEDs 120 from being blocked by the front protection plate 220, at least one hole 221 is formed in the front protection plate 220 to expose the LEDs 120. In this case, only one hole may be formed so that all the LEDs are located in one hole, or holes may be formed for each zone so that the LEDs are divided into several zones. The holes may be formed so as to correspond to the LEDs one-to-one, that is, one LED is positioned inside one hole. The number and shape of the holes 221 are optional and may be determined in consideration of the overall working process. Therefore, the front protection plate 220 covers only a predetermined area of the front surface of the printed circuit board 110, that is, the area excluding the area in which the LEDs 120 are installed.

On the other hand, depending on the number and shape of the holes 221 formed in the front protection plate 220, a small gap or a large opening may be generated between the hole 221 and the LEDs 120 of the front protection plate. Therefore, referring to FIG. 4, in the embodiment of the present invention, the resin solution 300 is filled between the holes of the front protection plate 220 and the LEDs 120 for more perfect waterproofing. As the resin solution 300 used, a urethane resin or a silicone resin may be used, but is not necessarily limited thereto.

In general, since the size of the LED module that can be implemented is limited, a plurality of LED modules are connected to each other. Therefore, referring to FIG. 5 in conjunction with FIGS. 2 to 4, the front protection plate 220 and the rear protection plate 210 of the waterproof LED module according to the embodiment of the present invention also cover the side surface of the printed circuit board 110. It has a structure that can be, and the side of the front protective plate 220 and the rear protective plate 210 has a bracket connection holder 222 is formed so as to be connected using the other waterproof LED module and the bracket 30, respectively. .

As described above, according to the present invention, since the LED module is waterproof, it can be used outdoors without limitation, and even when installed outdoors, the life can be shortened due to moisture or the like, so that it can be used for a long time.

In addition, damage due to carelessness is prevented even when the LED module is transported or stacked.

In addition, the use of a resin having excellent heat conduction heat dissipation effect has the advantage that the heat dissipation effect is improved to further extend the LED life.

The present invention is not limited only to the above embodiments, and it is apparent that many modifications are possible by those skilled in the art within the technical spirit of the present invention.

Claims (5)

An LED module comprising a printed circuit board and LEDs attached to a front surface of the printed circuit board; A rear protective plate installed on the LED module to cover the rear surface of the printed circuit board; At least one hole is formed so that the LED is exposed and the waterproof LED module including a front protective plate installed on the LED module to cover a predetermined area of the front of the printed circuit board. The waterproof LED module according to claim 1, wherein a resin solution is filled between the holes of the front protection plate and the LEDs. The waterproof LED module according to claim 1, wherein the resin solution is a urethane resin or a silicone resin. The waterproof LED module according to claim 1, wherein the front protective plate and the rear protective plate have a structure that can cover the side surface of the printed circuit board. The waterproof LED module according to claim 4, wherein brackets are formed on sides of the front protection plate and the rear protection plate to easily connect with other waterproof LEDs.

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