KR101106273B1 - LED Lighting Apparatus Having Block Assembly Structure - Google Patents

Abstract

The present invention relates to an LED lighting device having a block assembly structure that can be designed as well as easy to manufacture a variety of light distribution characteristics.
The present invention is a housing plate consisting of a polygonal plate shape; And each upper end is detachably coupled to each side of the polygon of the housing plate to form a tubular shape, and a plurality of LED modules mounted on the inner side are configured to distribute light at different irradiation angles according to a predetermined light distribution curve. And at least a part of the plurality of light source blocks in which an orientation direction is set in a direction away from the central axis of the housing.

Description

LED lighting device having a block assembly structure {LED Lighting Apparatus Having Block Assembly Structure}

The present invention relates to an LED lighting device, and in particular, a plurality of light source blocks including LEDs can be easily assembled and assembled to a housing plate to have various light distribution curves, and can be easily separated and separated by light source blocks, thereby making maintenance easy. It relates to an LED lighting device having a block assembly structure that can be.

In general, the light distribution mainly used for road lighting uses a light distribution curve of the first light distribution type to the fourth light distribution type, and when installed on a road, a street light is used to distribute the road surface through the light distribution having the light distribution curve. It is designed for efficient lighting. When the street lamp uses a bulb-type lamp, light distribution is controlled by adjusting the reflection angle of the reflector provided on the inner surface of the lamp housing.

Recently, street lamps employing high-brightness LEDs (Light Emitting Diodes), which consume little power and emit light with high brightness, have been developed. These high-brightness LEDs have a strong straightness, and in addition to the primary lens when packaging the LED chip to irradiate a large area, 12 ° lens, 25 ° lens to disperse the light emitted from the LED chip in various irradiation range And secondary lenses such as 30 ° and 40 ° lenses. In this way, the street lamp is made of several high-brightness LED modules and is applied to street lamps and security lamps using a plurality of LED modules.

On the other hand, the LED lighting device is disclosed in Korean Patent Publication No. 2009-78712 and Korean Patent Publication No. 2009-43215, respectively.

The LED lighting device disclosed in Korean Patent Publication No. 2009-78712 has a structure in which a plurality of LED modules are mounted on each of a plurality of inclined block members set to have different inclination angles so as to easily design a desired light distribution curve. The LED lighting device is formed along the outer periphery of the circular top plate integrally formed with a housing member having a bowl shape, and a plurality of LED modules are respectively provided on the inner side, the lower side of the upper plate, and the inner side of the housing member. The attached structure is disclosed.

The LED lighting device has a structure in which a plurality of LED modules are mounted on each of a plurality of inclined block members set to have different inclination angles so as to easily design a desired light distribution curve.

However, such a conventional technology is accompanied by technical difficulties in manufacturing a large housing member, and as a plurality of LED modules mounted inside the housing member, a plurality of power gap wiring and control signal wiring are manually connected. Has a factor of lowering productivity because of its complexity.

In addition, it is required to provide a set of 12 inclined block members in various combinations, for example, in which a plurality of LED modules are mounted according to the type of light distribution curve according to the place, region (local government), and country where the lighting device is installed. There was a problem that the die casting mold manufacturing costs increase.

Furthermore, the screw assembly of the metal PCB in which a plurality of LEDs are mounted on one inclined block member and the screw assembly of the plurality of inclined block members to the housing member are difficult to automate the assembly, and the glass cover, There was a problem in that maintenance was not easy because more than 10 screws were removed to dismantle the inclined block and the upper plate PCB.

In addition, the LED-mounted metal PCB assembled to one inclined block member has three LEDs, and each of these three LEDs is packaged to face one direction, so it was recognized as a single light source. Therefore, there is a problem in that the direction of irradiation of the mounted LEDs is not effectively distributed, so the maximization of the uniformity is not attained.

In addition, the prior art is that the LED mounting surface of the inclined block member is manufactured at a predetermined angle, so that a predetermined number of LEDs regularly illuminate the road surface with a single light source, so that the amount of light directly irradiated directly to the driver and pedestrians There was a problem of severe glare.

In addition, the lighting device disclosed in the Korean Patent Publication No. 2009-43215 also has the same or similar problems as the aforementioned Korean Patent Publication No. 2009-78712.

Moreover, since it is difficult to efficiently dissipate heat emitted from a plurality of LEDs, there is a problem that not only the light emission efficiency is lowered by heat, but also damage to components occurs.

In addition, a streetlight or a conventional streetlight using a conventional LED used a transparent protective cover to protect the lamp installed in the housing. However, the protective cover is mainly composed of a concave type (concave type) protruding to the outer side of the housing, the street lamp is protruded up and down in a state in which the housing and the protective cover is combined, the overall volume is large, so easy to store and transport There was a problem that was not.

KR10-2009-43215A KR10-2009-78712A

Accordingly, the present invention has been made to solve the above problems, the object of which is that the design can be easily changed because a plurality of light source blocks different from the irradiation angle and brightness can be assembled to the housing plate to have various light distribution characteristics It is to provide an LED lighting device having a block assembly structure that can be.

Another object of the present invention is to use a plurality of light source blocks including a plurality of LED modules as a point light source, respectively, to implement a desired light distribution type to selectively assemble a light source block having different irradiation angles and brightness to a housing plate to a desired light distribution type. It is to provide an LED lighting device having a block assembly structure that can implement the characteristics of.

Still another object of the present invention is to achieve a desired irradiation angle by assembling a plurality of light source blocks mounted with a plurality of LED modules to a housing plate, and can be easily maintained because each light source block can be separately separated. It is to provide an LED lighting device having a block assembly structure.

Another object of the present invention is to assemble a plurality of light source blocks each mounting a LED module on the housing plate in all directions to assemble excellent, to minimize the interface to maximize the heat dissipation effect by excellent heat transfer efficiency from the LED to the radiating fins It is to provide an LED lighting device having a block assembly structure that can be.

In order to achieve the above object, according to an aspect of the present invention, a housing plate made of a polygonal plate shape; And each upper end is detachably coupled to each side of the polygon of the housing plate to form a tubular shape, and a plurality of LED modules mounted on the inner side are configured to distribute light at different irradiation angles according to a predetermined light distribution curve. And at least a part of the plurality of light source blocks in which an orientation direction is set in a direction deviating from the central axis of the housing.

Each of the plurality of light source blocks has a plate-shaped body, an angle adjusting unit which is integrally formed by protruding from an inner surface of the body and has at least one inclined surface on the inner surface, and a plurality of LED modules mounted on the inclined surface of the angle adjusting unit. And an assembly part that is bent and extended from an upper end of the body and coupled to the housing plate. It includes a cover for covering the plurality of LED module and the angle adjuster.

It further includes a plurality of heat dissipation fins protruding from the outer surface of the body to radiate heat.

The assembly portion is set to have an inclination angle of 90 degrees or more between the body and the body.

The angle adjusting unit has a multi-stage inclined surface having different orientation directions on the inner surface.

The plate-shaped body is characterized in that the width becomes wider from the upper side to the lower side.

A connecting portion extending from the support is coupled to the upper surface of the housing plate.

It is mounted on the lower surface of the housing plate at intervals, and is connected by a connector formed in the light source block further comprises a printed circuit board for a power supply for applying power to the LED module, the external power through the connection portion It is characterized by being applied.

As described above, in the present invention, since a plurality of light source blocks having a block structure having an LED module for each block are assembled to a housing plate, assembly, separation, and design change are easy, and various angles are provided to a plurality of light source blocks. By forming the angle control unit integrally and at the same time as having a different irradiation angle in the front direction of the housing plate there is an advantage that can implement the desired light distribution type lighting device.

In addition, by assembling a plurality of light source blocks formed integrally with the radiating fins in the front direction of the housing plate to minimize the interface, the heat transfer from the LED to the radiating fins can be excellent to further increase the heat radiating effect.

In addition, the present invention is a plurality of LEDs are formed integrally with the heat radiation fin and the angle control unit, and formed a plurality of light source blocks mounted with a plurality of LED modules on the inner side to easily assemble to the housing plate to separate and maintain the LED during maintenance and repair Provides an easy replacement effect.

Furthermore, when the plurality of light source blocks are coupled to the housing plate, a male connector that applies power for driving the LED to the light source block is directly coupled to the female connector installed on the printed circuit board (PCB), thereby providing a plurality of wirings. Assembly productivity can be improved by omitting the process of connecting and assembling.

1 is a perspective view showing an LED lighting apparatus according to an embodiment of the present invention,
2 is an exploded perspective view showing an LED lighting apparatus according to an embodiment of the present invention,
3 is a bottom view showing the LED lighting apparatus according to an embodiment of the present invention,
4 is a plan view showing an LED lighting apparatus according to an embodiment of the present invention,
5 is a perspective view for explaining the housing plate and the light source block of the LED lighting apparatus according to an embodiment of the present invention;
6 is a cross-sectional view taken along line VI-V shown in FIG. 4;
7 and 8 are an exploded perspective view and a perspective view showing a light source block,
9 is a diagram illustrating a light distribution curve for each light distribution type.

Hereinafter, with reference to the accompanying drawings will be described the configuration of the LED lighting device having a block assembly structure according to an embodiment of the present invention.

In this embodiment, the LED lighting device 100 having a block assembly structure will be described by way of example. However, the LED lighting device 100 of the present invention is applicable not only to street lamps, but also to lighting of indoor and outdoor parking lots, indoor lighting, tunnels, and the like.

Referring to FIG. 1, the LED lighting device 100 may be fixedly installed by the connection part 111 extending to one side of the upper end of the support 10. In the LED lighting device 100, for example, a plurality of heat dissipation fins 113 are arranged along the 12 ends of the housing plate 110 in the shape of a pentagonal plate extending in the vertical direction.

The housing plate 110 is made of a metal having excellent thermal conductivity, for example, aluminum or an aluminum alloy in consideration of heat transfer and rigidity, and may be manufactured by extrusion or die casting.

The housing plate 110 is coupled to the connecting portion 111 extending from the support 10 to the upper side, the connecting portion 111 has a hollow portion therein so that predetermined power wiring drawn out from the inside of the housing plate 110 passes. It is preferably made of pipes. The connection part 111 may be variously modified depending on the field in which the LED lighting device 100 is applied.

Referring to the exploded perspective view of FIG. 2, the LED lighting device 100 includes 12 housing plates 110 having a pentagonal plate shape and 12 LED modules 140 mounted integrally with the angle adjusting unit 130. And a light source block (110a, 110b, ..., 110l), a printed circuit board (hereinafter referred to as a PCB) 150 to form a power supply device, and a protective cover 190.

Here, the twelve light source blocks 110a, 110b,... 110l assembled at the twelve ends of the housing plate 110 may include a plurality of LED modules in the angle adjusting unit 130 having different inclined surfaces on the inner surface thereof. 140 is mounted, the heat radiation fins 113 are formed on the outer surface.

In addition, two coupling holes 112a for assembling the light source blocks 110a, 110b,..., 110l are formed adjacent to the 12 ends of the housing plate 11, respectively.

The twelve light source blocks 110a, 110b,..., 110l each have a plate-shaped body 114, and each of the body 114 is assembled to correspond to the coupling hole 112a of the housing plate 110. Each assembly portion 112 is bent from the top to form an extension, and each assembly portion 112 forms two coupling holes 112b corresponding to the coupling holes 112a. In addition, each light source block (110a, 110b, ..., 110l) is a heat radiation fin from the LED module 140 by integrally forming the angle adjusting unit 130 and the heat radiation fin 113 on the inside and outside of the body 114 By minimizing the interface to 113, heat is directly transferred from the LED 143 to the heat radiation fins 113, thereby maximizing the heat radiation effect.

Referring to FIGS. 3 and 4, the housing plate 110 includes coupling holes formed in each of the light source blocks 110a, 110b,..., 110l in the coupling holes 112a formed adjacent to the 12 end portions of the octagon. 112b) is arranged in communication with each other, and the light source blocks 110a, 110b, ..., 110l are assembled at all 12 ends. Then, the diameter of the lighting device 100 increases from the top to the bottom of the housing plate 110, which is due to the wider width of the plate-shaped body 114 from the upper side to the lower side.

To this end, the assembly portion 112 is preferably set at an angle of more than 90 degrees bent from the body 114. In addition, the bending angle of the assembling unit 112 is set to 90 degrees or more, it is advantageous for the light distribution curve design of the luminaire. However, in the present invention, the twelve light source blocks 110a, 110b,.

The assembly process of the housing plate 110 and the light source blocks 110a, 110b, ..., 110l will be described in detail with reference to FIG. 5 below.

2 and 3, the housing plate 110 has eleven light source blocks 110a, 110b,..., 110k assembled at eleven ends, and at one end thereof, a light source is installed in the assembly space 100a. The block is not assembled.

The light source blocks (110a, 110b, ..., 110k) have a similar structure to each other and the orientation direction (X1-X5) of each angle control unit 130 of the light source blocks (110a, 110b, ..., 110k) It is set in the direction away from the central axis 102 of the housing. At this time, each angle control unit 130 of the light source blocks (110a, 110b, ..., 110k) of the irradiation area according to the inclination angle (α) between the outer surface and the body 114 on which the LED module 140 is mounted. The size can be determined.

Orientation direction (X1-X5) of each angle adjuster 130 of Figure 3 are all set in the direction away from the central axis 102 of the housing, some of them in accordance with the light distribution curve of the luminaire to be implemented It may be set to face axis 102. To this end, it is possible to adjust the inclination angle (α) of each angle adjusting unit 130 to be differently arranged.

Light distribution types described below refer to FIG. 9.

For example, in order to implement the fourth light distribution type lighting device, the orientation direction X1 is provided such that most of the angle adjusting parts 130 on the left and right sides forward with respect to the reference line 101 extending from the connection part 111. , X2, X3, X4, X5) are set, the orientation direction (X1, X2, X3, X4, X5) of all the angle adjuster 130 is the center when implementing the fifth light distribution type lighting fixture to form a square shape Set to face axis 102.

On the other hand, each of the angle adjuster 130 is composed of a multi-stage structure having at least one inclined surface (133a, 133b: see Fig. 7) on which the LED module 140 is mounted according to the light distribution curve of the luminaire to be implemented. .

For example, in order to implement the third or fourth light distribution type, since the assembly space 100a located at the front faces the rear side, when the angle adjusting unit 130 is finally inserted into the assembly space 100a, the first stage is provided. Since the inclined surface of the, and the angle control unit 130a facing the assembly space is facing forward can be designed to be equipped with LED modules 140, respectively having three inclined surfaces.

In addition, the angle adjuster positioned at the left and right sides of the rear angle adjuster 130a is provided with at least two inclined surfaces 133a and 133b, and the LED module 140 is installed and positioned at the left and right sides of the front assembly space 100a. The slope of the first stage is disposed on the angle adjuster 130, one LED module 140 may be mounted, or the LED module 140 may not be installed.

As described above, in the LED lighting apparatus of the present invention, a plurality of angle adjusting units 130 in which a plurality of LED modules 140 are installed are assembled into blocks at 12 ends of the housing plate 110, and a plurality of angle adjusting units 130 are installed. ) And may have various light distribution curves by the plurality of LED modules 140 set to different irradiation angles and brightness.

Referring to FIG. 4, the radiating fins 113 of 12 surfaces protrude radially outside the housing plate 110.

Since the housing plate 110 has a 12-sided plate-shaped upper surface as shown in FIG. 1, the horizontal cross-sectional view has a 12-sided shape, but the cross-sectional shape is changed by changing the shape of the heat dissipation fin 113 or the housing plate 110. It may also consist of polygons other than round, oval, square, rectangular or decagonal.

Referring to FIG. 5, the housing plate 110 has an octagonal plate shape and arranges the assembly portions 112 of the light source blocks 110a, 110b,. The light source blocks 110a, 110b,..., 110l are assembled by the coupling pieces 112c so as to communicate with 112a and 112b and extend downward.

Accordingly, the plurality of light source blocks 110a, 110b,..., 110l are coupled to the coupling hole 112b of the assembly part 112 and the coupling hole 112a of the housing plate 110 by fastening the coupling piece 112c. It is assembled to the housing plate 110. That is, the coupling hole 112b of the light source block 110a has the same diameter as the coupling hole 112a of the housing plate 110, and the coupling pieces 112c are fastened to the two coupling holes 112a and 112b to complete the assembly. .

Here, the light source block 110a includes an LED module 140 made of a plurality of LEDs 143 mounted on the metal substrate 141 to the upper portion of the angle adjusting unit 130, and protects the LED module 140. An individual cover 190 is provided for the purpose. On the other hand, the heat radiation fin 113 is formed on the rear surface of the LED module 140 of the light source block (110a) is installed.

In addition, the light source block 110a includes a male connector 152 for connecting the PCB 150 and the metal substrate 141, and the male connector 152 is assembled to the housing plate 110 when the PCB 150 is mounted. Is connected to the female connector (not shown). Two holes not shown at both sides of the male connector 152 are for wiring.

7 is an exploded perspective view of the light source block 110a assembled to the housing plate 110, and FIG. 8 is a perspective view of the assembled light source block 110a.

7 and 8, the light source block 110a has a plurality of heat dissipation fins 113 formed outside, and a plurality of angle adjusting units 130 and a plurality of LED modules 140 inside the body 114. It includes. The upper portion of the heat dissipation fins 113 is bent and has an extended assembly portion 112, and the assembly portion 112 forms two coupling holes 112b. Here, the angle adjustment unit 130 formed integrally with the light source block 110a has a multi-stage inclined surface (133a, 133b) having at least one or different inclination angle on the inner surface.

The angle adjuster 130 may be formed of a hexahedron having a substantially rectangular or square shape according to the number of LED modules 140 mounted in front.

In front of the angle adjusting unit 130 is formed a multi-stage inclined surface (133a, 133b) for installing a plurality of LED module 140 at a predetermined angle so that the illumination is made with the desired light distribution characteristics from the LED lighting device 100. In this case, the multi-stage inclined surfaces 133a and 133b are made of at least one or more.

Here, the plurality of LED modules 140 includes a substantially rectangular metal PCB 141 and a plurality of LEDs 143 mounted on an outer surface of the metal substrate 141. The metal substrate 141 may be made of a plate material having excellent thermal conductivity (for example, aluminum, copper, iron, or an alloy thereof), and the angle adjusting part 130 may be formed through a predetermined fixing piece 145. It is fixed to the inclined surfaces 133a and 133b, respectively.

In this case, the metal substrate 141 has a through hole 147 through which the fixing piece 145 passes, and fastening holes 137 through which the fixing piece 145 is fastened are formed in the inclined surfaces 133a and 133b, respectively. . Then, the individual cover 190 is fastened to protect the LED module 140.

The angle adjuster 130 is made of the same metal material as the housing plate 110, preferably a metal having excellent thermal conductivity, for example, aluminum or an aluminum alloy in consideration of heat transfer and rigidity, and manufactured by extrusion or die casting. Can be.

2 and 6, the housing plate 110 includes a plurality of housings for fixing a printed circuit board (PCB) 150 on which a predetermined electronic component 155 is mounted on a lower surface 118 to form a power supply device. The fixing protrusion 117 is formed, the fixing protrusion 117 is formed with a fastening groove 117a to which the fixing piece 153 is fastened, respectively. In this case, the PCB 150 has a plurality of through holes 151 formed at positions corresponding to the plurality of fixing protrusions 117, respectively, and is fixed to the plurality of fixing protrusions 117 through the plurality of fixing pieces 153. . At this time, the plurality of fixing protrusions 117 are generated from the plurality of LED modules 140 and the PCB 150 pattern is damaged by the high temperature heat transmitted to the housing plate 110 or the electronic component 155 mounted on the PCB 150. ) Serves as a spacer so as to have a predetermined distance between the PCB 150 and the lower surface 118 of the housing plate 110 so as not to cause a malfunction.

Meanwhile, the PCB 150 may use a double-sided board such as FR4, and is provided with a power supply circuit and a constant current / constant voltage circuit of a SMPS (switching mode power supply) method. In addition, the PCB 150 may express orange in addition to cool / white and warm / white when a plurality of LEDs are combined to realize the color of the LED lighting device 100. An amber LED (not shown) may be installed on the bottom surface of the PCB 150 in combination with a plurality of LED modules 140 installed at the side of the receiving groove of the housing plate 110.

LED lighting device 100 according to an embodiment of the present invention described above by modifying the combination of the various angle adjustment unit 130 is installed in the LED module 140 inside the housing plate 110, various light distribution type, for example For example, the second to fifth light distribution types may be implemented, and thus design freedom is increased when designing a lighting device for various uses.

In addition, a plurality of light source blocks on which the plurality of LED modules 140 are mounted may be assembled to 12 surfaces of the housing plate 110 to individually separate the light source blocks 110a, 110b,..., 110l. Therefore, it can be easily maintained, and the assembly of the light source blocks (110a, 110b, ..., 110l) mounted with the LED module 140 on the housing plate 110, respectively, excellent assemblability, by minimizing the interface Excellent heat transfer efficiency from LED to heat sink fins can maximize heat radiation effect.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following by those skilled in the art to which the present invention pertains. Various modifications and variations are possible, of course, within the scope of equivalents of the claims to be described.

The lighting apparatus of the present invention is applied to various light distribution type road lighting street lights, indoor lights, parking lots, and the like.

100: LED lighting device 110: housing plate
110a, 110b, ..., 110l: Light source block 111: Connection part
112: assembly portion 112a, 112b: coupling hole
112c: bonding piece 113: heat dissipation fin
117: fixing protrusion 130: angle adjustment unit
133a, 133b: slope 150: PCB
152: male connector 140: LED module
141: metal substrate 143: LED
190: individual cover

Claims (8)

A housing plate having a polygonal plate shape having a plurality of straight surfaces on an outer surface thereof; And
Individually detachably mounted to each of the plurality of straight surfaces of the housing plate, a plurality of LED modules mounted on the inner surface is set to be light distribution at different irradiation angles along a predetermined light distribution curve, at least a part of the orientation A plurality of light source blocks, the direction of which is set in a direction away from the central axis of the housing plate,
Each of the plurality of light source blocks,
Has a body having a heat radiation fin is formed on the outer surface, the body is integrally formed on the inner surface of the body and has at least one inclined surface, and a plurality of LED modules mounted on the inclined surface of the angle adjusting portion,
An LED lighting apparatus, characterized in that the assembly is bent inwardly at the upper end of the body is fastened to the edge of the housing plate. The method of claim 1,
Each of the plurality of light source blocks, LED lighting apparatus further comprises a cover for covering the plurality of LED modules and the angle control unit. delete The LED lighting apparatus of claim 1, wherein the assembly unit is set to have an inclination angle of 90 degrees or more between the body and the body. The LED lighting apparatus of claim 1, wherein the angle adjusting unit has a multi-stage inclined surface having different alignment directions on an inner side thereof. The LED lighting apparatus of claim 1, wherein the plate-shaped body is wider from an upper side to a lower side. The LED lighting device of claim 1, wherein a connection part extending from a support is coupled to an upper surface of the housing plate. The method of claim 7, further comprising a printed circuit board for the power supply device which is mounted at intervals on the lower surface of the housing plate, is connected by a connector formed in the light source block for applying power to the LED module. LED lighting apparatus characterized in that the external power is applied through the connection.

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