KR101126194B1

KR101126194B1 - Lighting apparatus using LED

Info

Publication number: KR101126194B1
Application number: KR1020100052671A
Authority: KR
Inventors: 김용태
Original assignee: (주)엔엠엘이디
Priority date: 2010-06-04
Filing date: 2010-06-04
Publication date: 2012-03-20
Also published as: KR20110133116A

Abstract

LED lighting device is formed on the upper surface and extending in the front and rear directions, and a plate-shaped lighting unit having a plurality of heat radiation fins respectively disposed on both sides of the protrusion and inclined with respect to the upper surface, LED coupled to the bottom of the heat dissipation unit An illumination part including a plurality of LED lamp units mounted on a substrate and a lower part of the LED substrate, each having a diffusion lens for diffusing light, and having a hole coupled to both front and rear ends of the heat dissipation part and having a hinge hole and an arc shape, respectively; It includes a fixing plate, a fixing bracket having two fastening holes opposed to the fixing plate and disposed up and down, a hinge bolt coupled through the upper fastening hole and the hinge hole, and an adjustment bolt coupled through the lower fastening hole and the long hole. It includes a fixing part capable of adjusting the angle in the left and right directions of the fixing plate. Therefore, the heat dissipation is excellent, and the illumination angle can be adjusted.

Description

LED lighting device {Lighting apparatus using LED}

The present invention relates to an LED lighting device, and more particularly, to an LED lighting device that can be used for lighting, such as a street lamp, the lighting angle can be adjusted and excellent heat dissipation efficiency.

In general, a lighting device includes a light source and emits light by illuminating a light emitted from the light source to a predetermined range. Examples of the lighting device may be a street lamp installed on a street lamp post, a lamp used to be installed on a wall or ceiling of a building.

Incidentally, incandescent lamps, fluorescent lamps, three wavelengths, and the like are generally used as light sources of the lighting device, but they have disadvantages such as high power consumption and short lifespan. In order to remedy this drawback, recently, a technology that uses a liquid light-emitting diode (LED), which consumes relatively little power and has a long life, is drawing attention.

The lighting device using the LED as a light source has advantages of low power consumption and long life, but high cost heat radiation has emerged as a problem.

In addition, the LED is excellent in the straightness of the light, but because of the poor diffusion properties of the lighting device using the LED is a disadvantage that the irradiation range of the light is not wide. This narrow range of irradiation is a barrier to using LEDs as lighting devices, such as street lights.

Therefore, the problem to be solved by the present invention is to provide an LED lighting device excellent in heat dissipation.

In addition, to provide an LED lighting device that can adjust the irradiation angle of light by arbitrarily adjusting the angle of the lighting unit including the LED lamp.

In addition, it is to provide an LED lighting device having good diffusivity of light generated from the LED lamp.

In order to achieve the above object, the LED lighting apparatus according to the embodiments of the present invention includes a heat dissipation unit, an illumination unit and a fixing unit. The heat dissipation part is formed on an upper surface and forms a plate shape having a plurality of heat dissipation fins respectively disposed on both sides of the protrusions extending in front and rear directions and inclined with respect to the upper surface. The lighting unit includes a LED substrate coupled to the bottom of the heat dissipation unit and a plurality of LED lamp units mounted on the bottom of the LED substrate, each having a diffusion lens for diffusing light. The fixing part is fixed to each of the front and rear ends of the heat dissipation unit and a fixing plate having a long hole forming an arc shape around the hinge hole and the hinge hole, and having two fastening holes facing the fixing plate and arranged up and down It includes a bracket, a hinge bolt coupled through the upper fastening hole and the hinge hole and an adjustment bolt coupled through the lower fastening hole and the long hole, the angle can be adjusted in the left and right directions of the fixing plate. .

According to the embodiments of the present invention, the heat dissipation fins in the LED lighting device may have a configuration in which both sides are inclined symmetrically with respect to the protrusion.

According to the embodiments of the present invention, each of the LED lamp unit is a LED lamp mounted on the LED substrate, a housing for accommodating the LED lamp in the conical shape of the upper and lower openings and inserted into and inscribed in the housing The upper part may include a diffuser lens that has an open shape and a lower part has a closed conical shape and diffuses the light of the LED lamp.

In addition, the diffusion lens has a plurality of convex or concave diffusion patterns are formed on the lower surface of the conical shape for the diffusion of light.

In addition, the diffusion lens may include a cylindrical internal lens covering the LED lamp.

According to the embodiments of the present invention, in the LED lighting device, the protrusion is formed to be symmetrically left and right on the upper surface, and a part of the upper end thereof is bent facing each other to form a fastening groove extending in the front and rear directions. It may further include a pair of fastening ribs, and slidingly coupled from the end of the fastening groove is disposed on the upper portion of the heat dissipation portion and may further include a control circuit for driving the LED lamp units.

The LED lighting device according to the embodiments of the present invention configured as described above radiates heat of the LED lamp through a plurality of heat dissipation fins formed on the upper surface of the heat dissipation portion of the plate shape, but the heat dissipation fins are vertical by having a slanted structure. Alternatively, heat dissipation is excellent because the surface area of the heat dissipation fins is increased as compared with the horizontal arrangement.

In addition, by adjusting the angle of the lighting unit in the front and rear directions by adjusting the angle of the fixing unit, it is possible to adjust the range and direction in which the LED lighting device shines light. In addition, since the housing for inducing light and the diffusion lens for diffusing the light for each of the LED lamps are separately provided to diffuse the light from the point of generation of light, the diffusivity is better than that of the integrated diffusion lens.

1 is an exploded perspective view of an LED lighting apparatus according to an embodiment of the present invention.
2 is an assembled perspective view of the LED lighting apparatus according to an embodiment of the present invention.
3 is a side view of the LED lighting apparatus according to an embodiment of the present invention.
Figure 4 is a bottom view of the LED lighting apparatus according to an embodiment of the present invention.
FIG. 5 is an exploded perspective view for explaining the LED lamp unit shown in FIG. 1.
6 is an assembled cross-sectional view of the LED lamp unit shown in FIG.
7 is an angle adjustment state diagram of the LED lighting apparatus according to an embodiment of the present invention.

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

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the invention, and are actually shown in a smaller scale than the actual dimensions in order to explain the schematic configuration. The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

1 is an exploded perspective view of the LED lighting apparatus according to an embodiment of the present invention, Figure 2 is an assembled perspective view of the LED lighting apparatus according to an embodiment of the present invention, Figure 3 is an LED according to an embodiment of the present invention 4 is a side view of the lighting apparatus, and FIG. 4 is a bottom view of the LED lighting apparatus according to the embodiment of the present invention.

1 to 4, the LED lighting device 100 according to an embodiment of the present invention is a heat dissipation unit 110 for heat dissipation, a lighting unit 120 for irradiating light and a fixing unit for fixing the installation of the light It includes 130, the fixing unit 130 is configured to enable the angle adjustment of the lighting unit 120.

The LED lighting device 100 may be used as a lamp by fixing to the street lamp post, building exterior wall or ceiling by using the fixing unit 130.

The heat dissipation unit 110 serves to cool by dissipating heat generated from the lighting unit 120. The heat dissipation unit 110 has a plate shape. For example, the heat dissipation unit 110 may have a rectangular plate shape, and may have a structure in which left and right ends of the plate shape are bent downward. In this downward bent portion, a member for covering the lighting unit 120, for example, a transparent protective cap may be installed in combination.

On the upper surface of the heat dissipation unit 110, a protrusion 111 and a plurality of heat dissipation fins 113 are formed. The protrusion 111 extends long in the front and rear directions on the upper surface of the heat dissipation unit 110. The protrusion 111 includes a pair of fastening ribs 111a and 111b symmetrically disposed at left and right sides having a sidewall shape, and the pair of fastening ribs 111a and 111b are bent with their upper portions facing each other. Has a structure. The protrusion 111 forms a fastening groove 112 extending in the front and rear directions through the pair of fastening ribs 111a and 111b. In addition, since the upper ends of the fastening ribs 111a and 111b have a bent structure, the fastening groove 112 has a shape in which the width of the opening of the upper end is relatively narrower than the width of the inner space. This fastening groove 112 is used to slide the other member. On the other hand, the pair of fastening ribs (111a, 111b) may have a curved structure in the opposite direction.

The heat dissipation fins 113 are disposed at both sides of the protrusion 111. Each of the heat dissipation fins 113 may have a flat plate shape extending in the front and rear directions. In particular, in the present embodiment, the heat dissipation fins 113 are formed in a plate-shaped upper surface standing structure (or sidewall shape), and have an inclined structure with respect to the upper surface. That is, the heat dissipation fins 113 are formed obliquely with respect to the upper surface of the heat dissipation unit 110. In addition, the heat radiation fins 113 disposed on the left and right sides of the protrusion 111 are symmetrical with respect to the protrusion 111. For example, the heat dissipation fins 116 disposed on the right side of the protrusion 111 may be inclined to the right, and the heat dissipation fins 116 disposed on the left side of the protrusion 111 may be inclined to the left. As such, as the heat dissipation fins 116 are inclined with respect to the upper surface of the heat dissipation unit 110, the heat dissipation fins 116 may also be formed on the side surface of the protrusion 111. The heat dissipation fins 113 may be configured at various heights.

As such, the heat dissipation fins 113 are formed to be inclined with respect to the upper surface, thereby effectively dissipating heat. That is, since the heat dissipation fins 113 are formed in an inclined shape, the height is increased than when the heat dissipation fins 113 are formed in the vertical or horizontal direction, and the heat dissipation fins 113 extend from the side of the protrusion 111 so that a relatively large number of heat dissipation fins ( 113) Formation is possible. As a result, since the total surface area of the heat radiation fins 113 is increased, the heat radiation efficiency is improved.

Meanwhile, at least two screw holes 114 for fastening the fixing part 130 are provided at both ends of the heat dissipating part 110, and for example, two screw holes 114 may be disposed at left and right sides. Can be. The apparatus may further include a vertical rib 115 disposed between the pair of fastening ribs 111a and 111b constituting the protrusion 111 and having a height lower than that of the fastening ribs 111a and 111b. The vertical ribs 115 may extend in the front and rear directions, and screw holes 116 may be provided at both ends of the vertical ribs 115 to fasten the fixing part 130, respectively.

The lighting unit 120 is disposed below the heat dissipation unit 110. The lighting unit 120 includes an LED substrate 121 and a plurality of LED lamp units 122, and the LED lamp units 122 are mounted on a lower surface of the LED substrate 121 and installed downward.

The LED substrate 121 is coupled to the lower portion of the heat dissipation unit 110. Since the heat radiating unit 110 has a square plate shape, the LED substrate 121 may have a rectangular shape corresponding to the shape of the heat radiating unit 110. A circuit pattern for driving the LED lamp units 122 may be formed on the LED substrate 121. For example, the LED substrate 121 may be a printed circuit board.

The LED lamp units 122 are disposed on the bottom surface of the LED substrate 121, the arrangement may have a matrix form. In particular, the LED lamp units 122 may be independent structures each configured to diffuse light individually.

FIG. 5 is an exploded perspective view for explaining the LED lamp unit shown in FIG. 1, and FIG. 6 is an assembled cross-sectional view of the LED lamp unit shown in FIG. 1.

5 and 6, in this embodiment, each LED lamp unit 122 includes an LED lamp 123, a housing 124, and a diffusion lens 125. Therefore, light emission and diffusion are possible separately.

The LED lamp 123 is mounted on the bottom surface of the LED substrate 121 and emits light for illumination. Here, the base member 123a in the form of a plate mounted on the LED substrate 121 may be installed, and the LED lamp 123 may be mounted on the base member 123a.

The housing 124 serves as a case for accommodating the LED lamp 123, and serves as a reflector to induce diffusion by reflecting light of the LED lamp 123. For example, the housing 124 has a conical shape of which upper and lower portions are opened, and the light emitting portion of the LED lamp 123 is disposed therein. For example, the upper end of the housing 124 having a relatively small diameter is attached to the base member 123a, and the LED lamp 123 is disposed therein. The housing 124 may be made of an opaque material to reflect light therein.

The diffusion lens 125 diffuses the generated light of the LED lamp 123. The light of the LED lamp 123 is excellent in the straightness than the diffusivity due to the characteristics of the LED, the diffusion lens 125 diffuses the light generated by the LED lamp 123. For example, the diffusion lens 125 may have a conical shape in which an upper portion is opened and a lower portion is blocked. The diffuser lens 125 is inserted to inscribe the housing 124. Thus, the LED lamp 123 is disposed therein by the upper opening of the diffusion lens 125. The diffusion lens 125 diffuses the light of the LED lamp 123 while reflecting in various directions. In particular, a plurality of diffusion patterns 126 may be formed on the lower surface of the diffusion lens 125 to substantially diffuse light. The diffusion patterns 126 may be convex or concave. For example, the diffusion patterns 126 may have a hemispherical convex pattern. Alternatively, the diffusion patterns 126 may have convex or concave shapes having various shapes such as pyramids and diamonds. That is, it is sufficient that a pattern for diffusing light is formed on the lower surface of the diffusing lens 125.

Here, the diffusion lens 125 may further include a cylindrical inner lens 127 covering the LED lamp 123 in the conical shape in order to increase the light diffusion effect. The inner lens 127 extends in contact with the upper portion of the conical shape and has a lower height than the height of the conical shape.

1 to 4 again, the fixing part 130 is coupled to the heat dissipation part 110 through a bolt or the like. The fixing unit 130 is used to fix the LED lighting device 100 by being fixed to the street lamp post or building outer wall or ceiling in the state coupled with the heat dissipating unit 110. In the drawing, but not shown for the configuration for fixing the fixing unit 130 to the street lamp post or building exterior wall or ceiling, various methods already known, such as bolts, brackets, wires, bands can be applied.

The fixing part 130 is configured to be able to adjust the angle of the heat dissipating part 110 in the left and right directions, and consequently has a configuration capable of adjusting the angle of the lighting unit 110 in the left and right directions. As such, it is possible to adjust the direction of irradiating light in the state in which the LED lighting device 100 is installed and fixed by adjusting the angle of the lighting unit 110 through the fixing unit 130.

For example, the fixing part 130 includes a fixing plate 131, a fixing bracket 132, a hinge bolt 133, and an adjusting bolt 134.

The fixing plate 131 is provided with a pair, and is coupled to both ends before and after the heat dissipation unit 110. The fixing plate 131 may be coupled using, for example, a bolt. For this purpose, the fixing plate 131 may include a screw hole 114 formed at an end of the heat dissipation unit 110 and a screw hole formed at an end of the vertical rib 115. The through hole 131a is provided corresponding to the position of 116. The fixing plate 131 extends higher than the heat dissipation unit 110 in a part coupled to the heat dissipation unit 110. The extended portion is provided with a hinge hole 131b and an arc-shaped long hole 131c, and the arc-shaped long hole 131a is disposed at the hinge hole 131b as a center point of the arc. Therefore, the long hole 131a maintains the same distance as the hinge hole 131b at all positions.

The fixing bracket 132 faces the fixing plate 131. The fixing bracket 132 is provided with two fastening holes 132a and 132b disposed up and down. Here, the spacing between the two fastening holes 132a and 132b is equal to the spacing between the hinge hole 131b and the long hole 131c formed in the fixing plate 131. For example, the fixing bracket 132 may have a bar shape extending in the front and rear directions, and both front and rear ends thereof are bent downward. As such, the downward bending portion may be disposed to face the fixing plate 131, and may have a structure in which two fastening holes 132a and 132b are provided in the downward bending portion. Alternatively, the fixing bracket 132 may have a structure formed separately from the fixing plate 131.

The hinge bolt 133 and the adjustment bolt 134 serves to fasten the fixing plate 131 and the fixing bracket 132.

Specifically, the hinge bolt 133 is coupled through the upper fastening hole 132a of the fixing bracket 132 and the hinge hole 131b of the fixing plate 131. Accordingly, the fixing plate 131 and the fixing bracket 132 are rotatably fastened to the hinge bolt 133 by the rotation shaft. The adjustment bolt 134 is coupled through the lower fastening hole 132b of the fixing bracket 132 and the long hole 131c of the fixing plate 131. Therefore, the adjustment bolt 134 is movable within the long hole 131c, and the relative placement angle of the fixed plate 131 with respect to the fixing bracket 132 in accordance with the position of the adjustment bolt 134 in the long hole 131c. Adjusted. That is, the angle in the front and rear directions of the fixing plate 131 is adjusted.

As such, since the fixing plate 131 and the fixing bracket 132 are fastened through the hinge bolt 133 and the adjusting bolt 134, the angle of the front and rear directions of the fixing plate 131 can be adjusted, and the angle of the fixing plate 131 is fixed. It has a function to adjust the angle in the front, rear direction of the heat dissipation unit 110 and the lighting unit 120 through the adjustment.

7 is an angle adjustment state diagram of the LED lighting apparatus according to an embodiment of the present invention.

Referring to FIG. 7, the angle adjustment of the illumination unit 120 in the LED lighting device 100 enables the angle adjustment of the heat dissipation unit 110, that is, the hinge bolt 133 to move the fixing plate 131. And loosen the adjustment bolt 134 by a predetermined amount.

As such, through the relaxation of the hinge bolt 133 and the adjustment bolt 134, the fixing plate 131 is able to move the hinge bolt 133 to the rotation axis. At this time, the range in which the fixing plate 131 is movable by the adjustment bolt 134 is limited to the range in which the adjustment bolt 134 is movable in the long hole 131c. That is, since the long hole 131c has an arc shape, the fixing plate 131 is angled in the front and rear directions. As a result, the angle of the heat dissipation unit 110 to which the fixing plate 131 is coupled is adjusted, so that the irradiation direction of the lighting unit 120 is finally adjusted.

As such, while adjusting the position of the adjustment bolt 134 in the long hole 131c, the angle of the lighting unit 110 is adjusted to a desired angle, and then the adjustment bolt 134 and the hinge bolt 133 are tightened for fixing.

Therefore, the lighting unit 120 maintains the adjusted angle.

Referring back to FIGS. 1 to 4, the LED lighting device 100 further includes a control circuit unit 140 for emitting light from the LED lamp units 122 of the lighting unit 120.

The control circuit unit 140 is coupled to the heat dissipation unit 120. For example, the control circuit unit 140 may have a box shape, and a lower portion thereof includes a fastening rib 141 having a structure that is slidably coupled from an end of the fastening groove 112. Therefore, the control circuit unit 140 may be coupled to be disposed above the heat dissipation unit 120 through the fastening groove 112. In addition, the control circuit unit 140 may be electrically connected to the LED substrate 121.

According to the embodiments of the present invention as described above, the heat dissipation of the LED lamp through a plurality of heat dissipation fins inclined on the upper surface of the heat dissipation portion of the plate shape, the heat dissipation fins are inclined vertically or horizontally by having an inclined structure The heat dissipation effect is improved because the surface area of the heat dissipation fins is increased compared to the case where the heat dissipation fins are disposed.

In addition, by adjusting the angle of the lighting unit in the front and rear direction through the fixing unit, it is possible to adjust the range and direction of shining light even in a state where the LED lighting apparatus is installed and fixed. Therefore, even one LED lighting device can satisfy various light irradiation conditions.

In addition, for each LED lamp, a housing for light induction and a diffusion lens for light diffusion are separately provided, and thus individual configurations are possible. Through this, light is diffused from an initial point of light, and thus light diffusivity is greater than that of an integrated diffusion lens. This is improved.

While the foregoing has been described with reference to preferred embodiments of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated.

100: LED lighting device 110: heat dissipation unit
111: protrusions 111a, 111b: fastening ribs
112: fastening groove 113: heat dissipation fin
114: screw hole 115: vertical rib
116: screw hole 120: lighting unit
121: LED substrate 122: LED lamp unit
123: LED lamp 123a: base member
124: housing 125: diffusion lens
126: diffusion pattern 127: internal lens
130: fixing part 131: fixing plate
131a: through hole 131b: hinge hole
131c: long hole 132: fixing bracket
132a, 132b: fastening hole 133: hinge bolt
134: adjustment bolt 140: control circuit portion
141: combined rib

Claims

A plate-shaped heat dissipation unit formed on an upper surface and extending in front and rear directions and disposed on both sides of the protrusion and having a plurality of heat dissipation fins inclined with respect to the upper surface;
An illumination unit mounted to a lower portion of the heat dissipation unit and a plurality of LED lamp units mounted to a lower portion of the LED substrate and each having a diffusion lens for diffusing light; And
A fixing plate coupled to both front and rear ends of the heat dissipation unit and having a long hole formed in an arc shape around the hinge hole and the hinge hole, and a fixing bracket having two fastening holes facing the fixing plate and arranged up and down; A hinge bolt coupled through the upper fastening hole and the hinge hole among the two fastening holes, and an adjustment bolt coupled through the lower fastening hole and the long hole among the two fastening holes, and the left and right sides of the fixing plate. LED lighting device including a fixing portion capable of adjusting the angle in the direction.

The LED lighting apparatus of claim 1, wherein the heat dissipation fins are symmetrically inclined to both sides with respect to the protrusion.

The method of claim 1, wherein each of the LED lamp units
An LED lamp mounted on the LED substrate;
A housing accommodating the LED lamp in a conical shape having an upper and a lower part opened; And
LED lighting device, characterized in that the upper portion which is inserted into the housing and inscribed in the opening and the lower portion has a closed conical shape and diffuses the light of the LED lamp.

4. The LED lighting apparatus of claim 3, wherein the diffusion lens has a plurality of convex or concave diffusion patterns formed on the conical lower surface to diffuse light. 5.

4. The LED lighting device of claim 3, wherein the diffusion lens includes a cylindrical inner lens covering the LED lamp.

The method of claim 1, wherein the protrusions are formed on the upper surface symmetrical left and right, the upper portion is bent facing each other includes a pair of fastening ribs to form a fastening groove extending in the front and rear directions, And a control circuit part slidingly coupled from an end of the fastening groove and disposed above the heat dissipation part to drive the LED lamp units.