KR20090118293A - A lighting module using smd led - Google Patents

Abstract

PURPOSE: An LED lighting module is provided to prevent an internal component from being damaged due to rain or dust by preventing the exposure of the internal component by a coloring cover. CONSTITUTION: An LED lighting module(100) includes a substrate(130), an insulation sheet(120), a housing(110), and an end cap(150). A plurality of LEDs are mounted on the substrate. The insulation sheet is interposed between the substrate and the housing. The housing is formed by an extrusion molding. The housing has a mounting groove and a wire through hole. The substrate is mounted on the mounting groove of the housing. The end cap is combined in both sides of the housing. A coupling screw(138) passes through the substrate side coupling hole, the sheet side coupling hole, and the housing side coupling hole and connects the substrate to the housing mechanically.

Description

LED lighting module {A lighting module using SMD LED}

The present invention relates to an LED lighting module, and more particularly, to a lighting module that can provide various types of modules, which is effective for long-term use, and which can be applied to various applications.

LED (Light Emitted Diode) is a light emitting means to replace the existing incandescent light bulb, it is smaller in size, power consumption and heat generation than incandescent light bulb, and can be used for a long time.

Such LEDs replace incandescent bulbs and are especially used as signboard lighting.

Hereinafter, a lighting module according to the prior art will be described with reference to FIG. 7.

7 is a plan view of a lighting module according to the prior art.

As shown in FIG. 7, the lighting module 10 according to the related art further includes wire holders 14 formed on both sides of a box-shaped synthetic resin housing 12 having one side open, and a power source or a signal line 16. It penetrates and is combined.

The electronic component including the LED 22 is mounted on the substrate 20, and the fastening screw 24 passes through the substrate 20 and is coupled with the metal wire of the wire 16 to receive power for operation.

On the other hand, the housing 12 is filled with synthetic resin, silicon or the like to prevent contamination or damage caused by water or dust.

Lighting module 10 having such a configuration is installed on the back of the signboard or acrylic plate to function as an illumination.

However, such a lighting module 10 has a problem that the manufacturing cost is expensive because the housing 12 must be manufactured according to the number or arrangement of the LEDs 22 to be mounted.

In addition, since the housing 12 is formed of a synthetic resin due to problems such as manufacturing cost, effective heat dissipation is not achieved, and there is a problem of shortening of life due to deterioration of the substrate.

In addition, in the case of installing a plurality of lighting modules 10, the wires 16 and the components installed on the substrate are exposed and can not be used independently because they are not aesthetically good, and it is impossible to apply them to various uses by requiring other concealment. .

The present invention is derived to solve the problems according to the prior art described above, and an object of the present invention is to provide a lighting module applicable to the number of LEDs or various arrangements.

Another object of the present invention is to provide an illumination module having excellent stability even for a long time use by an effective heat dissipation action.

Still another object of the present invention is to provide an illumination module that can be used independently because no wires or parts are exposed and can prevent contamination by rain or dust.

In order to achieve the above object, an LED lighting module according to an embodiment of the present invention, a substrate on which one or more LEDs and components necessary for the operation of the LED is mounted, and a seating groove for mounting the substrate on the upper surface And, it may include a housing in which a wire through hole through which the wire is formed.

In the present invention, a substrate-side fastening hole is formed at both ends of the substrate, and a housing-side fastening hole connected to the housing-side wire passing hole is formed at a position corresponding to the substrate-side fastening hole in the seating groove of the housing. The wire and the substrate-side fastening hole are electrically connected to each other by a wire provided through a housing-side wire passing hole and a fastening screw coupled to the wire through the board-side fastening hole and the housing-side fastening hole. And the housing may be mechanically coupled.

In the present invention, the substrate-side fastening hole is formed with a metal pattern is electrically connected by the fastening screw, the housing may be formed by extrusion molding.

In the present invention, a seat-side fastening hole is formed at a position corresponding to the substrate-side fastening hole, is positioned between the substrate and the housing to insulate between the lower surface of the substrate and the upper surface of the housing, the row of the substrate It may further include an insulating sheet formed of a material capable of transferring heat to the housing.

In addition, the present invention may further include an insulating sheet positioned between the substrate and the housing to insulate between the lower surface of the substrate and the upper surface of the housing, wherein the insulating sheet transfers heat from the substrate to the housing. It may be formed of a material capable of thermal conductivity.

In the present invention, respectively installed on both ends of the housing, it may further include an end cap surrounding the both ends of the housing and the cap side wire through hole corresponding to the housing side wire through hole is formed.

In addition, the upper end of the end cap may be further formed with a working groove to enable the fastening operation of the fastening screw.

The seating groove of the housing of the present invention is filled with synthetic resin or silicon from the upper part of the substrate to the upper surface of the housing, or the upper part of both sides of the seating groove of the housing is additionally formed with a cover fitting groove and is fitted with the cover fitting groove. It may be configured to further include a cover.

In the present invention, the cover is formed of a colored synthetic resin, the adhesive sheet may be further attached to the lower surface of the housing, the heat dissipation fin for dissipating heat may be formed on the side of the housing.

According to the present invention, by adjusting the length of the housing, it is possible to arrange various LEDs, thereby providing a lighting module having low manufacturing cost.

In addition, according to the present invention can be provided with a heat radiation fin is formed on the side of the housing, the heat of the substrate is transferred to the housing through the insulating sheet to provide a lighting module capable of effective heat dissipation.

In addition, according to the present invention, since the internal parts are not exposed through the colored cover, it is possible to provide a lighting module having independent appearance and a neat appearance.

That is, according to the present invention, the housing can be formed by extrusion molding rather than the conventional fixed plastic housing structure, it is possible to provide a lighting module freely adjustable in length.

Particularly, a wire passing hole through which an electric wire passes is formed in the housing, and a housing side fastening hole connected to the substrate side fastening hole and a housing side electric wire passing hole having a metal pattern formed on the outer periphery of the substrate and the housing are formed by the fastening screw. It is possible to electrically connect the wire and the board-side fastening hole, to provide a lighting module that can be applied to various standards.

In addition, even when the soldering part is exposed on the lower surface of the board, including the insulating sheet, the soldering part and the housing are electrically connected to each other, thereby preventing the module from malfunctioning. The insulating sheet is formed of a heat conductive material to efficiently dissipate heat from the substrate. You will be able to.

On the other hand, in the present invention, the end cap is formed on both ends of the housing, the foreign matter is not drawn into the housing side is clean, the upper end of the work cap is formed, there is an advantage that the fastening of the fastening screw is easy.

On the other hand, the seating groove of the housing is filled with synthetic resin or silicon from the top of the substrate to the top surface of the housing, thereby providing a module that can be completely waterproof.

In addition, a cover fitting groove is additionally formed in the housing, and by fitting the cover to the cover fitting groove, it can be utilized as a complete lighting device, unlike the existing module used only inside the signboard, etc. can also be used as general lighting. There is an advantage.

In particular, since the shape of the light source is a straight bar type, it is possible to replace a fluorescent lamp.

In addition, the cover is formed of a colored synthetic resin, it can be configured so that the internal circuit portion is not visible to the outside, there is an advantage that is suitable for applications requiring various color changes.

In addition, the adhesive sheet is further attached to the lower surface of the housing, so that it can be attached to other materials in a simple manner.

According to the present invention, since the electric wire is inserted through the housing-side electric wire through-hole formed in the housing, when the fastening screw is fastened, the electric wire cannot be separated, so that the fastening screw can accurately penetrate the electric wire, and the wiring in the existing module It provides a stable module that does not have the risk of unlighting according to the state.

In addition, there is a risk that the wires of the negative electrode and the positive electrode are conventionally attached, in which case the fastening screw is fastened, but according to the present invention, since the electric wires are separated by an appropriate distance by the housing side wire through hole, etc. It is to provide a stable module without the risk of short circuit by screwing.

In addition, unlike the existing module, the module is made of a metal such as aluminum having excellent thermal conductivity, and in particular, a heat radiating fin is formed at the side of the housing to emit heat, thereby increasing the number of LEDs for high brightness, high power or high brightness. It is possible to provide effective heat dissipation even by using LEDs, and it is possible to provide a module that is excellent in long-term reliability and can also use high brightness and high power LEDs sufficiently.

In the following, embodiments of the present invention are described with reference to the accompanying drawings.

In the following description of the present invention, if it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, the terms to be described later are terms set in consideration of functions in the present invention, and these terms may vary according to the intention or custom of the producer producing the product, and the definition of the terms should be made based on the contents throughout the present specification.

(First embodiment)

Hereinafter, the LED lighting module according to the first embodiment of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view of a lighting module according to a first embodiment of the present invention, Figure 2 is a cross-sectional view showing a first assembly state of the lighting module according to the first embodiment of the present invention, Figure 3 is 4 shows a state in which the resin is filled, and FIG. 4 is a side cross-sectional view of the coupling of the lighting module according to the first embodiment of the present invention.

As shown, the LED lighting module 100 according to the first embodiment of the present invention (for convenience of description below), unless otherwise stated, the 'LED lighting module' is briefly referred to as 'lighting module'. ), The insulating sheet 120 is located in the seating groove 111 of the housing 110, the end cap 150 has a configuration that is coupled to both ends of the housing (110).

On the other hand, the housing 110 is preferably formed by extruding a metal having good thermal conductivity, such as aluminum.

The substrate 130 has a plurality of LEDs 134 and components necessary for the operation of the LEDs 134 mounted on a surface thereof, and a pair of substrate-side fastening holes 132 electrically connected to power lines and ground lines 160 are formed in pairs at both ends. do.

The insulating sheet 120 is positioned between the substrate 130 and the housing 110, and the sheet-side fastening hole 122 is formed at a position corresponding to the substrate-side fastening hole 132 so that the insulating sheet 120 and the lower surface of the substrate 130 are formed. Insulate between the upper surfaces of the housing 110. In addition, the insulating sheet 120 is formed of a material capable of conducting heat, and performs a function of transferring heat of the substrate 130 to the housing 110.

The housing 110 has a seating groove 111 for seating the substrate 130 on an upper surface thereof, and a housing side wire passage hole 114 penetrating both ends thereof. The mounting groove 111 has a housing side fastening hole 112 connected to the housing side wire passing hole 114 at a position corresponding to the substrate side fastening hole 132.

The heat dissipation fin 116 is formed on the side of the housing 110 to help the effective heat dissipation operation.

The wire 160 covers the metal wire 162 therein and has a covering material. The wire 160 is installed through the cap side wire passage hole 152 and the housing side wire passage hole 144 to supply power required for the operation of the lighting module 100. Supply.

The fastening screw 138 passes through the board side fastening hole 132, the sheet side fastening hole 122, and the housing side fastening hole 112, and the metal wire 162 of the electric wire 160 installed in the wire passing hole 114. To the point of electrical contact.

The fastening screw 138 not only mechanically couples the substrate 130 to the housing 110, but also electrically connects the metal wire 162 of the wire 160 and the substrate side fastening hole 132. do.

The end caps 150 are installed at both ends of the housing 110, and surround both ends of the housing 110. The end cap 150 is formed with a cap side wire passage hole 152 corresponding to the housing side wire passage hole 114.

It is preferable that the working groove 154 is further formed on the upper end of the end cap 150 to enable the fastening operation of the fastening screw 138. As the working groove 154 is formed, the side cap 150 does not cover the substrate side fastening hole 132 when viewed in a plan view, so that the position of the substrate side fastening hole 132 is conveniently checked and the fastening screw ( 138) can be combined.

The adhesive sheet 140 is attached to the lower surface of the housing 110 to help the lighting module 100 to be easily attached to an external object.

In addition, the mounting groove 111 of the housing 110 is filled with a synthetic resin or silicon 170 from the top of the substrate to the top surface of the housing after assembly is completed. This makes it possible to prevent the substrate from being contaminated or broken by water or dust.

Hereinafter, assembling of the lighting module according to the first embodiment will be described with reference to FIGS. 2 to 4.

In the first step, the wire 160 is installed to pass through the pair of cap-side wire passage holes 152 and the housing-side wire passage holes 114.

In the second step, the insulating sheet 120 is seated in the seating recess 111.

In a third step, the substrate 130 is seated on the insulating sheet 120.

In the fourth step, the fastening screw 138 is coupled. The state at this time is shown in FIG. As shown in FIG. 2, since the fastening screw 138 is in contact with the metal wire 162, power of the metal wire 162 is transmitted to the substrate-side fastening hole 132 through the fastening screw 138.

In the fifth step, the filling groove 111 is filled with a synthetic resin or silicon (170). The state at this time is shown in FIG. As shown in FIG. 3, the synthetic resin or silicon 170 is filled to protect the LED 134 or the electronic components mounted on the substrate 130 from contamination of water or dust.

In a sixth step, the end cap 150 is coupled to both ends of the housing 110. The state at this time is shown in FIG.

Second Embodiment

Hereinafter, the lighting module according to the second embodiment will be described with reference to FIGS. 5 and 6.

5 is a cross-sectional view showing a first assembly state of a lighting module according to a second embodiment of the present invention, Figure 6 is a side cross-sectional view of the coupling of the lighting module according to a second embodiment of the present invention.

As shown, the lighting module 200 according to the second embodiment of the cover fitting grooves on the upper sides of the mounting grooves 211 of the housing 210, compared to the lighting module 100 according to the first embodiment 215 is further formed and is substantially the same except that the cover 290 is fitted to the cover fitting groove 215.

Here, the cover 290 is preferably formed of colored synthetic resin.

By such a configuration, the lighting module 200 according to the second embodiment can prevent the LED or electronic component mounted on the substrate 230 by the cover 290 from being contaminated by water or dust. LEDs and electronic components can't be seen from the outside, so they have a clean appearance.

On the other hand, it is noted that the seating groove 211 may be filled with synthetic resin or silicon, if necessary.

The embodiments of the present invention have been described above with reference to the accompanying drawings.

However, it is to be noted that the present invention is not particularly limited only to the above-described embodiments, and that various modifications and changes can be made by those skilled in the art within the spirit and spirit of the appended claims as necessary.

1 is an exploded perspective view of a lighting module according to a first embodiment of the present invention.

2 is a cross-sectional view showing a first assembly state of the lighting module according to the first embodiment of the present invention.

FIG. 3 illustrates a state in which resin is filled in FIG. 2.

4 is a side cross-sectional view of the coupling of the lighting module according to the first embodiment of the present invention.

5 is a cross-sectional view showing a first assembly state of a lighting module according to a second embodiment of the present invention.

6 is a side cross-sectional view of the coupling of the lighting module according to the second embodiment of the present invention.

7 is a plan view of a lighting module according to the prior art.

<Explanation of symbols for the main parts of the drawings>

10: lighting module 100: lighting module

110: housing 120: insulating sheet

130: substrate 140: adhesive sheet

150: end cap 160: electric wire

170: resin 290: cover

Claims (10)

LED lighting module is a light emitting combined LED, A substrate on which one or more LEDs and components necessary for operation of the LEDs are mounted; LED housing module, characterized in that it comprises a housing in which a mounting groove for the substrate is seated on the upper surface, and a wire passing hole through which the wire passes. The method of claim 1, wherein the substrate-side fastening holes are formed at both ends of the substrate, A housing side fastening hole connected to the housing side wire passage hole is formed in a seating groove of the housing at a position corresponding to the substrate side fastening hole. The wire and the board-side fastening hole are electrically connected by a wire provided through the housing-side wire passing hole and a fastening screw coupled to the wire through the board-side fastening hole and the housing-side fastening hole. LED substrate, characterized in that the substrate and the housing are mechanically coupled. The LED lighting module of claim 2, wherein a metal pattern is formed in the substrate-side fastening hole to be electrically connected by the fastening screw, and the housing is formed by extrusion molding. The method of claim 3, wherein the seat-side fastening hole is formed in a position corresponding to the substrate-side fastening hole, positioned between the substrate and the housing to insulate between the lower surface of the substrate and the upper surface of the housing, LED lighting module, characterized in that it further comprises an insulating sheet formed of a material capable of transferring heat to the housing. The terminal cap according to any one of claims 1 to 4, further comprising end caps respectively installed at both ends of the housing and having cap side wire through holes formed at both ends of the housing and corresponding to the housing side wire through holes. Characterized in that it comprises an LED lighting module. According to claim 5, The upper end of the end cap is characterized in that the working groove is further formed to enable the fastening of the fastening screw, LED lighting module. 6. The LED lighting module according to claim 5, wherein the seating recess of the housing is filled with synthetic resin or silicon from the top of the substrate to the top surface of the housing. The LED lighting module of claim 5, wherein upper portions of both sides of the seating recess of the housing further include a cover fitting groove, and a cover fitted to the cover fitting groove. 9. The LED lighting module according to claim 8, wherein the cover is formed of colored synthetic resin, and an adhesive sheet is further attached to the lower surface of the housing. The LED lighting module of claim 5, wherein the housing is formed of a metal having high thermal conductivity, and heat dissipation fins are formed at sides of the housing to release heat.

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