KR101088715B1 - LED lighting device and its manufacturing method - Google Patents

Abstract

The LED lighting apparatus and its manufacturing method according to the present invention is configured to be assembled while the PCB and the end cap is engaged with each other in the first coupling portion formed in a circular groove structure inside the body frame, and the power cable is the LED lighting apparatus By being configured to be connected in the lateral drawn state of the, it is possible to realize a simple and stable assembly structure as a whole, a continuous arrangement is possible in close contact without the need for a gap between the lighting device and the lighting device, more compact overall Provides the effect of enabling the arrangement of the lighting device.

LED, PCB, End Cap, Cable, Cover

Description

LED lighting device and its manufacturing method

The present invention relates to an LED lighting device having a linear arrangement structure and a method of manufacturing the same.

LEDs (light-emitting diodes) have a long life, low power consumption, small size, environmentally friendly, safe and shock-resistant compared to other light sources such as fluorescent or incandescent lamps are increasingly widely used. In addition, it has the advantage of excellent responsiveness compared to other light sources.

These LEDs are being used in a wide range of applications such as external display boards, automobiles, display lamps for various electronic devices, general lightings, and LCD backlights.

The lighting apparatus using the LED can be configured to have a variety of structures according to the place, environment, and needs, the present invention relates to the LED lighting apparatus having a line-like arrangement structure, looks at the prior art contrast.

1 to 3 are views of the LED module disclosed in Patent No. 10-0879045, Figure 1 is an overall perspective view, Figure 2 is an exploded perspective view, Figure 3 is a perspective view showing a series connection state of the LED module. Some of the drawings disclosed in the patent publication are attached as is)

The LED module 200 of the present invention shown in these figures has a rectangular shape, a case 210 having an upper surface and opposing side surfaces open, and a case 210 through an open upper surface of the case 100. Ends composed of a PCB 220 accommodated into the inside, an end cover 280 in close contact with both open sides of the case 210 and an end cap 270 fitted into an upper surface of the end cover 280 The member 260 is comprised.

The case 210 has an upper surface open to accommodate the PCB 220 therein, and open regions 212 are formed at opposite sides thereof, such that the end member 260 may be coupled to both open sides. It is configured to.

The adhesive tape 250 as a fixing member is attached to the bottom surface of the case 210 so that the LED module 200 can be easily attached to an advertisement signboard or lighting device such that the heat generated from the light emitting device can be effectively conducted to a panel such as a signboard. It is made of a configuration to be attached.

In the PCB 220, an LED as a light emitting element 230 and peripheral elements such as a resistor and a capacitor are connected and arranged in a predetermined pattern, and a power supply line 240 is connected along a predetermined pattern formed on the other surface.

The end member 260 includes an end cover 280 that is tightly interposed on opposite sides of the case 210, and an end cap 270 that is fitted through an upper surface of the end cover 280. .

The end cover 280 has an opening portion formed to have a substantially " U " shape when viewed from opposite sides of the case 210, and the fixing piece 286 at the center end of the outside thereof is closed of the case 210. By incorporating into the coupling groove 214 is provided at the intermediate height of the side, the end cover 280 is configured to be coupled to the case 210 in a way to press the case 210 in close contact. On the other hand, the guide groove 282 is vertically formed in the inner end surface of the U-shaped opening of the end cover 280, and one or more first wire protrusions 284 are provided along the center lower end thereof.

Guide protrusions 272 protrude vertically on both side surfaces of the end cap 270, and are configured to be inserted into the guide grooves 282 vertically formed along the inner end surface of the end cover 280. A second wire protrusion 274 is formed on the bottom of the end cap 270 to correspond to the first wire protrusion 284.

This patent invention is that when the end cap 270 is assembled to the end cover 280, a wire through portion 276 is formed between the first wire protrusion 284 and the second wire protrusion 274, the power supply line ( 240 is extended to the outside through the wire penetrating portion 276, and is connected to the power supply unit or the adjacent LED module, so that the light emitting device 230 can be turned on.

In addition to the basic structure of the LED module, as shown in FIG. 3, the configuration in which the six-shaped LED module 200b adjacent to the four-shaped LED module 200a is arranged to be interconnected by the power supply line 240b is shown. .

However, including the LED module of the patent invention as described above, the conventional LED lighting device (module) is fixed by the sealing member 290 or the like in the state in which the PCB 220 is simply housed inside the case 210 Since the end member 260 is divided into a plurality of parts and is assembled in a fitting manner by fitting to the case 210, the assembly structure of the lighting device is complicated as a whole. In particular, when the sealing member 290 is not used, the entire assembly part is Since there is no part to be assembled while being engaged with each other, there is a problem in forming a more robust and stable module as a whole.

In addition, the conventional LED lighting apparatus including the LED module of the invention of the invention, as shown in Figure 3, because the power supply line (240a, 240b) is drawn out in the longitudinal direction of the lighting device is connected to the interval between the lighting devices In the case where the lighting devices are arranged in a line, the arrangement of the compact devices is difficult.

The present invention has been made to solve the above problems, by configuring the main body frame, PCB, end caps and the like can be assembled with each other, thereby realizing a simple and stable assembly structure as a whole, can contribute to improved productivity and economics It is an object of the present invention to provide an LED lighting device and a method of manufacturing the same that can increase the reliability of the product.

In addition, the present invention is configured so that the power cable is connected in the lateral direction of the LED lighting device, when the plurality of LED lighting devices are arranged in series, it is possible to be arranged in a continuous state in close contact without the need for a more compact lighting device It is an object of the present invention to provide an LED lighting device and a method of manufacturing the same to enable a configuration of the arrangement.

An LED lighting apparatus according to the present invention for realizing the above object is, a main body frame is formed in a long structure having an upper surface and both ends are open, and a plurality of LEDs are inserted in the inner side of the main body frame and arranged in a plurality of upper An inner assembly groove is provided such that a PCB, a cover coupled to an open upper surface of the body frame at an upper position of the PCB, and power cables connected to both ends of the body frame and connected to the PCB may be connected to the outside. A formed end cap; Inside the main body frame, a first coupling part and a second coupling part each having a two-stage groove structure are formed so that both side parts of the PCB and the cover are inserted and assembled, and the first coupling part is circular on both inner surfaces of the main body frame. It is formed to be long in the groove structure, it is characterized in that both sides of the PCB is inserted so that at the same time protruding from the end cap is configured to be inserted and assembled together.

The end cap has an assembly protrusion formed on one side thereof, and an assembly hole through which the fastening member penetrates is formed on the other side thereof, and the assembly member penetrates the assembly protrusion and is inserted into both circular grooves of the first coupling unit. It is preferable that it is comprised so that.

The assembly protrusion is preferably formed in a semi-circular structure is configured to be assembled with one side portion of the PCB in one circular groove of the first coupling portion.

The main frame has a planar support portion protruding upward from the bottom surfaces of both circular grooves between both circular grooves constituting the first coupling portion, and can support the bottom surface of the PCB while the PCB is fitted in both circular grooves. It is preferable to be configured to.

A heat dissipation unit having a fin structure may be formed on the opposite side of the support unit in the main body frame so as to easily dissipate heat generated from the inside to the outside.

The inner assembly groove of the end cap is preferably formed in a structure that is open in the side direction and the main body frame so that the power cable can be connected in a direction perpendicular to the longitudinal direction of the main body frame.

It is preferable to include a stopper mounted around the power cable and inserted into an inner assembly groove of the end cap to prevent foreign substances from penetrating.

Preferably, a heat conducting member is provided between the bottom surface of the body frame and the PCB.

The plurality of LED lighting devices are arranged in series, the adjacent LED lighting device is assembled with the end caps in close contact with each other, the power cable is drawn out in a direction perpendicular to the body frame through the inner assembly groove of the end cap Can be configured to have an interconnected structure.

According to an aspect of the present invention, there is provided a method of manufacturing an LED lighting apparatus comprising: a first step of inserting and assembling a PCB into both circular grooves of a first coupling part formed in the main body frame; A second step of assembling a cover to a second coupling part of the main body frame after the first step; After the second step, the end caps are assembled to both ends of the main body frame, respectively, and the assembling holes formed in the end caps with the fastening members formed in the grooves in which the assembly protrusions protruding from the end caps are inserted into one groove of the first coupling portion. It characterized in that it comprises a third step of assembling through the other groove of the first coupling portion.

When the inner assembly groove of the end cap is formed in a structure in which two surfaces are opened in the lateral direction and the main body frame side, the third step is to connect the power cable connected to the circuit pattern of the PCB through the inner assembly groove of the main frame. It is preferable to include the step of connecting in a direction orthogonal to the longitudinal direction, and assembling so that the plug installed around the power cable is fitted into the inner assembly groove.

In particular, a fourth step of manufacturing a plurality of LED lighting devices manufactured through the first to third steps, and assembling the plurality of LED lighting devices manufactured in this manner in series so that the end caps are in close contact with each other; And a fifth step of interconnecting the power cable connected through the inner assembly groove of the end cap of the LED lighting device with the power cable of another adjacent LED lighting device.

The main problem solving means of the present invention as described above, will be described in more detail and clearly through examples such as 'details for the implementation of the invention', or the accompanying 'drawings' to be described below, wherein In addition to the main problem solving means as described above, various problem solving means according to the present invention will be further presented and described.

The LED lighting apparatus and the manufacturing method thereof according to the present invention can realize a simple and stable assembly structure as a whole because the main frame, PCB, end cap is configured to be assembled while being engaged with each other in the first coupling portion formed in the main frame and Therefore, it can contribute to the improvement of the productivity and economics of the product, as well as to increase the reliability of the product.

In addition, the present invention, since the power cable is configured to be connected in the lateral direction of the LED lighting device, when the plurality of LED lighting devices are arranged in series can be arranged in a continuous state in close contact without the need for a gap between the lighting device and the lighting device This has the effect of enabling a more compact arrangement of the lighting device as a whole.

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

4 to 7 are views showing the LED lighting apparatus according to an embodiment of the present invention, Figure 4 is an overall appearance perspective view, Figure 5 is an exploded perspective view, Figure 6 is a front view of the entire lighting device, Figure 7 Sectional drawing of the AA line direction of FIG. 6, FIG. 8 is a front view of an end cap.

9 is an external perspective view illustrating a series connection state of LED lighting apparatuses according to an exemplary embodiment of the present invention.

As illustrated in these figures, the LED lighting apparatus according to an embodiment of the present invention, the main body frame 10, the heat conducting member 20, a plurality of LEDs 35 are arranged in a line, the PCB 30, the cover 40, both end caps 50, the power cable 60, the plug 70, and the like.

Such major components of the present invention will be described in detail.

First, the main body frame 10 is preferably formed of a metal material such as an aluminum material, but is not necessarily limited thereto, and may be configured using a hard synthetic resin material or the like depending on the implementation conditions.

As illustrated in the drawing, the main body frame 10 is elongated in a structure in which an upper surface and both ends are open. The upper surface is opened so that the light emitted from the LED 35 can be irradiated to the outside, and both ends are opened to cut the body frame 10 to an appropriate length, and then to assemble and finish the end cap 50. will be.

On the inner side of the main body frame 10, coupling portions 11 and 15 having a two-stage groove structure for fixing the PCB 30 and the cover 40, etc. are formed. The first coupling part 11 to which the end cap 50 is assembled is formed, and the second coupling part 15 to which the cover 40 is assembled is formed on the upper side of the inner side, which is the upper part of the first coupling part 11. do.

The first coupling part 11 is elongated in a circular groove structure on both inner surfaces of the body frame 10. It is preferable that both circular grooves are formed in different sizes. The relatively large first grooves 12 are fitted with fixed assembly protrusions 53 of the end caps 50 to be described later, and have relatively small sized agents. The two grooves 13 are configured such that the fastening member 57 penetrating the end cap 50 is fitted.

In addition, the first groove 12 and the second groove 13 of the first coupling part 11 have a function of supporting both sides of the PCB 30 in the inserted state, when assembling the PCB 30 One side of the 30 may be assembled into the second groove 13 by pressing the other part of the PCB 30 into the main body frame 10 while being inserted into the relatively large first groove 12.

In addition, the bottom surface of the main body frame 10 is formed between the first groove 12 and the second groove 13 has a planar support portion 14 protruding relatively upward than the lower side of both circular grooves, which is shown in FIG. For reference, by supporting the bottom surface of the PCB 30 in a state where the PCB 30 is inserted into both grooves 12 and 13, the PCB 30 can be maintained in a stable assembly state without being shaken in the body frame 10. It is for.

The second coupling portion 15 is formed in a groove structure so that both side portions of the cover 40 can be fitted and fixed. In this case, the fitting method of the cover 40 may be assembled by inserting one part into one groove first and then inserting the other part into the other groove in the same manner as the PCB 30. In addition, the cover 40 may be assembled by sliding the second coupling part 15 from one end of the main frame 10 in a sliding manner.

The cover 40 is preferably made of a transparent material so that the light emitted from the LED 35 can be transmitted, but is not necessarily limited thereto, and may be made of a translucent material or the like.

On the other hand, in the main body frame 10, the heat dissipating portion 16 formed of a plurality of protruding structure, that is, a fin-like structure is formed on the opposite side toward the support portion 14 to easily dissipate heat generated therein to the outside. It is preferable to be.

Next, the PCB 30 is provided with a board 31 on which a circuit pattern for operating the LED 35 is formed, and a plurality of LEDs 35 arranged at regular intervals on the board 31. In the figure, the configuration in which the LEDs 35 are arranged in one column is illustrated, but according to the exemplary embodiment, the LEDs 35 may be arranged in various ways in a plurality of columns instead of one.

The PCB 30 is formed in an elongated plate-like structure, and may be assembled by being fitted to the first coupling part 11 of the main body frame 10 described above by an interference fit method. Of course, the PCB 30 may be assembled by sliding the first coupling part 11 from one end of the main frame 10 in a sliding manner.

Power cables 60 are electrically connected to circuit patterns at both ends of the PCB 30 so as to provide power to the LEDs 35.

Next, the thermally conductive member 20 is preferably formed in an elongated sheet structure and disposed in such a manner as to be attached between the support 14 of the body frame 10 and the PCB 30.

The heat conduction member 20 is installed to transmit heat generated when the LED 35 is driven to the body frame 10 made of metal to radiate heat to the outside, and the heat radiating part 16 is disposed below the body frame 10. Since it is configured, the heat transferred to the body frame 10 through the heat conductive member 20 can be easily radiated to the outside through the heat dissipation unit 16.

The heat conductive member 20 is not necessarily a constitution, and may be omitted and configured according to the implementation conditions.

Next, the power cable 60 is connected in a direction orthogonal to the longitudinal direction of the PCB 30 at both ends of the PCB 30. This is for connecting the power cable 60 in the lateral direction rather than the longitudinal direction of the lighting device.

The power cable 60 is connected to the outside of the body frame 10 through the end cap 50 provided at both ends of the body frame 10 in the PCB (30).

The end of the power cable 60 is preferably provided with a socket 65 to facilitate connection with other power cable 60 or a circuit.

Next, the end cap 50 is assembled to both ends of the main body frame 10, and the power cable 60 is drawn out in a direction (lateral direction of the lighting device) orthogonal to the longitudinal direction of the main body frame 10. The inner assembly groove 51 is formed at a portion coupled to the main frame 10 to have a structure.

The inner assembly groove 51 is open at the body frame 10 side from the end cap 50 so that the end of the PCB 30 can be inserted and connected to the outside in the state in which the power cable 60 is embedded. One side is formed in an open structure.

An assembly hole 52 is formed at one side and an assembly protrusion 53 is formed at the other side such that the end cap 50 can be assembled to the main frame 10.

When assembling the end cap 50 to the body frame 10, the assembly protrusion 53 of the end cap 50 is inserted into the first groove 12 of the body frame 10. The end cap 50 is assembled to the main body frame 10 by fastening the fastening member 57, for example, a screw, into the second groove 13 of the main body frame 10 through the assembly hole 52.

Here, the assembly protrusion 53 is formed in a semi-circular structure, which does not form an obstacle when the PCB 30 and the power cable 60 are inserted into the internal assembly groove 51, and the first groove 12. The upper surface is configured in a plane so as to have the same plane from the inner assembly groove 51 so that it can be stably fitted with the PCB 30 within.

Next, the stopper 70 is inserted into the inner assembly groove 51 of the end cap 50 in a state of being mounted around the power cable 60 to be installed to prevent foreign substances from penetrating into the inner assembly groove 51. It is preferably composed of a size or material that can be tightly fixed to.

The manufacturing method of the LED lighting apparatus according to the present invention as described above will be described.

First, the main body frame 10 is cut to an appropriate length, and then the PCB 30 is inserted into the main body frame 10 to be assembled. At this time, it is preferable to insert the thermally conductive member 20 having a sheet-like structure between the support 14 and the PCB 30 of the body frame 10. The heat conductive member 20 may be attached to the support 14 of the main body frame 10 and the PCB 30 by using an adhesive tape or the like.

The PCB 30 inserted into the main body frame 10 has a bottom surface in which both sides thereof are fitted into the first groove 12 and the second groove 13 of the first coupling part 11 of the main body frame 10. By being supported by this support part 14, it has a stable assembly structure.

The PCB 30 has a structure in which a plurality of LEDs 35 are arranged and installed.

The power cable 60 is assembled to the body frame 10 in a state of being connected to the circuit pattern of the PCB 30 in advance, or the PCB 30 is assembled to the body frame 10 and then to the circuit pattern of the PCB 30. Can connect In any way, the power cable 60 is arranged to be connected in the lateral direction of the lighting device in a direction orthogonal to the longitudinal direction of the body frame 10 at both ends of the PCB 30. And the plug 70 is preferably assembled to the power cable 60 before connecting the power cable 60 to the PCB (30).

Next, the cover 40 is assembled to the second coupling portion 15 of the body frame 10. In this case, the assembly method of the cover 40 may be assembled by an interference fit method or a sliding insertion method as described above.

Next, the end cap 50 is assembled to both ends of the main body frame 10, respectively. At this time, in a state in which the assembly protrusion 53 of the end cap 50 is inserted into the first groove 12 of the first coupling portion 11, the fastening member 57 through the assembly hole 52 of the end cap 50. ) To assemble the fastening member 57 to fit into the second groove (13).

Here, when the end cap 50 is assembled to the body frame 10, since the inner assembly groove 51 is formed in the end cap 50, the end of the PCB 30 is inserted into the inner assembly groove 51 and In addition, the plug 70 is fitted so that the power cable 60 is arranged to be arranged laterally of the lighting device.

In addition, when the assembling protrusion 53 of the end cap 50 is formed in a semi-circular structure and inserted into the first groove 12, the PCB is inserted into the body frame 10 while being inserted into a gap with the PCB 30 assembled first. 30, the end cap 50 can be assembled while being firmly in close contact with each other.

It is possible to complete the LED lighting apparatus according to the present invention by using the manufacturing method as described above.

Referring now to FIG. 9, a brief description will be given of a method of assembling a plurality of LED lighting devices in a row.

First, each LED lighting device (100A, 100B) is assembled in series so that the end cap 50 is in close contact with each other. At this time, each LED lighting device (100A) (100B) can be assembled by attaching and fixing using a double-sided tape or the like to install the lighting device. Although not illustrated in the drawings, the end caps 50A and 50B that are in close contact with each other may be configured to be coupled to each other.

Next, the power cable 60A drawn out through the inner assembly groove of the end cap 50A of one LED lighting device 100A is interconnected with the power cable 60B of another adjacent LED lighting device 100B. By interconnecting the socket 65 portions of both power cables 60A and 60B, the plurality of LED lighting devices 100A and 100B arranged in series are electrically interconnected.

In this way, the plurality of LED lighting devices (100A) (100B) are arranged in series, the end caps (50A), 50B of the adjacent LED lighting devices are assembled in a state of being completely in close contact with each other, the power cable (60A) ( 60B) is drawn out to the side of the lighting device has a structure that is interconnected.

Therefore, when the power cable 60A is drawn out to the side of the lighting device 100A and connected to the power cable 60B of the other lighting device 100B to connect a plurality of LED lighting devices, between the lighting device and the lighting device. It is possible to arrange a plurality of LED lighting devices in a continuous manner in close contact so as not to generate a gap.

As described above, the technical ideas described in the embodiments of the present invention can be performed independently of each other, and can be implemented in combination with each other. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. It is possible. Therefore, the technical protection scope of the present invention will be defined by the appended claims.

1 to 3 are views of the LED module disclosed in Patent No. 10-0879045,

1 is a full perspective view,

2 is an exploded perspective view,

3 is a perspective view showing a series connection state of the LED module.

Figure 4 is a perspective view showing the appearance of the LED lighting apparatus according to an embodiment of the present invention.

5 is an exploded perspective view of the LED lighting apparatus according to an embodiment of the present invention.

6 is a front view of the LED lighting apparatus according to an embodiment of the present invention.

FIG. 7 is a cross-sectional view taken along the line A-A of FIG. 6.

8 is a front view of an end cap configured in the LED lighting apparatus according to an embodiment of the present invention.

9 is an external perspective view showing a series connection state of the LED lighting apparatus according to an embodiment of the present invention.

Claims (13)

A main body frame formed to have an upper structure and an open end at both ends, a PCB inserted into the main body frame and having a plurality of LEDs arranged thereon, and an open upper surface of the main body frame at an upper position of the PCB And an end cap formed at both ends of the main body frame and having an inner assembly groove formed therein so that a power cable connected to the PCB can be connected to the outside. Inside the body frame, a first coupling part and a second coupling part each having a two-stage groove structure are formed so that both side parts of the PCB and the cover are inserted and assembled. The first coupling portion is formed in both sides of the inner side of the main body frame in a circular groove structure, both sides of the PCB is inserted at the same time protruding from the end cap is also configured to be inserted and assembled LED Lighting equipment. The method according to claim 1, The end cap has an assembly protrusion formed on one side thereof, and an assembly hole through which the fastening member penetrates is formed on the other side thereof, and the assembly member penetrates the assembly protrusion and is inserted into both circular grooves of the first coupling unit. LED lighting apparatus, characterized in that configured to be. The method according to claim 2, The assembly projection is formed in a semi-circular structure LED lighting device, characterized in that configured to be fitted together with one side portion of the PCB in one circular groove of the first coupling portion. The method according to claim 2, The main frame has a planar support portion protruding upward from the bottom surfaces of both circular grooves between both circular grooves constituting the first coupling portion, and can support the bottom surface of the PCB while the PCB is fitted in both circular grooves. LED lighting device, characterized in that configured to. The method according to claim 4, LED lighting device, characterized in that the heat dissipation portion formed of a fin-like structure to easily dissipate the heat generated therein to the outside on the opposite side of the support portion in the main frame. The method according to any one of claims 1 to 5, The inner assembly groove of the end cap is an LED lighting device, characterized in that the power cable is formed in a structure that is open in the lateral direction and the main body frame so as to be connected in a direction perpendicular to the longitudinal direction of the main body frame. delete delete delete The method according to any one of claims 1 to 5, The LED lighting device is arranged in plurality in series, The adjacent LED lighting device is assembled with the end caps in close contact with each other, The power cable is led out through the inner assembly groove of the end cap in the direction orthogonal to the body frame, LED lighting apparatus, characterized in that it has a structure connected to each other. In the method of manufacturing the LED lighting apparatus according to claim 1, A first step of assembling and inserting the PCB into both circular grooves of the first coupling part formed in the main frame; A second step of assembling a cover to a second coupling part of the main body frame after the first step; After the second step, the end caps are assembled to both ends of the body frame, respectively, and the assembling holes formed in the end caps with the fastening members formed in the state where the assembly protrusions protruding from the end caps are inserted into one groove of the first coupling portion. LED lighting device manufacturing method comprising a third step of assembling to fit into the other groove of the first coupling portion through. The method of claim 11, When the inner assembly groove of the end cap is formed in a structure in which the two sides are opened in the lateral direction and the body frame side, The third step is to connect the power cable connected to the circuit pattern of the PCB in the direction orthogonal to the longitudinal direction of the main body frame through the inner assembly groove, the plug is installed around the power cable to be fitted into the inner assembly groove LED lighting device manufacturing method characterized in that it comprises a process. The method according to claim 12, A fourth step of manufacturing a plurality of LED lighting devices manufactured through the first to third steps, and assembling the plurality of LED lighting devices thus manufactured in series such that end caps are in close contact with each other; And a fifth step of interconnecting the power cable connected through the inner assembly groove of the end cap of the LED lighting device with the power cable of another adjacent LED lighting device.

Images