KR101436090B1

KR101436090B1 - Adjustable led lighting device

Info

Publication number: KR101436090B1
Application number: KR1020120058648A
Authority: KR
Inventors: 이완범; 소병구; 이남주
Original assignee: (주) 탑엘이디
Priority date: 2012-05-31
Filing date: 2012-05-31
Publication date: 2014-10-14
Also published as: KR20130134829A

Abstract

The present invention relates to an LED illumination device, and more particularly, to an LED illumination device having a semi-spherical heat dissipation part at a rear end so as to control the irradiation angle according to a user's desired irradiation area and to have high light distribution efficiency, In an LED lighting device including a groove formed therein, the illumination lamp (100) is arranged in a plurality of rows, and the inclination angle at which the illumination lamp is tilted toward the outside is increased toward both edge rows, The present invention relates to an LED lighting device capable of adjusting the irradiation angle.

Description

TECHNICAL FIELD [0001] The present invention relates to an ADJUSTABLE LED LIGHTING DEVICE,

The present invention relates to an LED lighting device, and more particularly, to an LED lighting device having a high light distribution efficiency and capable of adjusting a light irradiation angle in accordance with a user's desired irradiation area.

Generally, the conventional street light installed on the road is arranged uniformly at intervals of approximately 30M to 50M along the road, and as the illumination light, generally, sodium or the like is generally used. However, such conventional lighting lamps such as sodium lamps and metal lamps have been consumed in a large amount of electric power as a discharge type, and electric power is wasted. Therefore, a lighting lamp for a street lamp using an LED chip as a light source has been developed.

As such, the streetlight lamp that uses the LED chip as a light source uses a power LED chip having a high capacity as a light source, and a plurality of such LEDs are assembled and packaged for use. However, since the characteristic of the LED light source is the directivity of the streetlight using the LED as the light source, the irradiation angle is wide and can not be adjusted narrowly depending on the installation place, so that the LED light source can not always emit light at a constant angle.

In more detail, since the street lamps using LED chips are installed at an interval of 30M to 50M, there is no illumination between the street lamps, resulting in a very dark dead zone. That is, the conventional LED chip illumination lamps have a very small amount of light between the street light and the street light due to the lack of diffusivity of the LED, so that dark dead zones are frequently formed. Such a blind spot is difficult to pass through at night, Have been a major impediment to safe movement.

[Related Technical Literature]
1. ILLUMINATOR MODULE USING LED using LED (Patent Application No. 10-2008-0089244)
2. LED streetlight of search-light angle adjustment (Patent Application No. 10-2011-0010929)

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a lighting apparatus and a lighting apparatus capable of adjusting the irradiation angle according to a user's desired irradiation area, The present invention has been made in view of the above problems, and it is an object of the present invention to provide an LED illumination device capable of adjusting the irradiation angle.

According to another aspect of the present invention, there is provided an LED lighting device including a LED lighting lamp having a hemispherical heat dissipation unit at a rear end thereof, and a heat sink having a hemispherical mounting groove on which the heat dissipation unit is mounted, The illumination lamps 100 are arranged in a plurality of rows, and the angle of inclination of the illumination lamps toward the outside increases toward both edge lines.

According to the present invention, the user can selectively adjust the illuminance area according to the installation conditions, and at the same time, the same light amount as other illumination lights can emit a large amount of reflected light to the outside, It is possible to minimize the occurrence of a blind spot where light is not reflected due to lack of sex.

In addition, since the heat dissipation structure has a high heat radiation efficiency, it is possible to prevent the shortening of the service life and the reduction of the luminance due to the high heat generated in the inside.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an assembled state of an LED illumination device capable of adjusting a light-
FIG. 2 is an exploded perspective view showing a structure of an LED illumination device capable of controlling the irradiation angle according to the present invention, FIG.
FIG. 3 and FIG. 4 are views showing a state in which a lighting lamp is applied to an LED lighting device capable of adjusting an irradiation angle according to the present invention, FIG.
FIG. 5 is an exemplary view showing a structure of an installation groove applied to an LED illumination device capable of controlling the irradiation angle according to the present invention. FIG.
FIG. 6 is an exploded perspective view showing a structure in which an illumination lamp applied to an LED illumination device capable of adjusting a light irradiation angle according to the present invention is installed,
FIG. 7 is an exemplary view showing a state where a fixing member applied to an LED illumination device capable of adjusting a light irradiation angle according to the present invention is in contact with an illumination lamp,
FIG. 8 and FIG. 9 are views showing a structure of a fixing member applied to an LED illumination device capable of controlling the irradiation angle according to the present invention,
10 is an exemplary view showing an installation structure of a radiating fin portion and a radiating fin ring applied to an LED lighting device capable of controlling the irradiation angle according to the present invention.
FIG. 11 is an exemplary view showing the structure of a heat sink fin ring applied to an LED lighting device capable of controlling the irradiation angle according to the present invention. FIG.
FIGS. 12 and 13 are views showing a structure in which a transmission cover is applied to an LED illumination device capable of controlling the irradiation angle according to the present invention, and FIG.
FIG. 14 is an exemplary view showing the structure of an illumination lamp applied to an LED illumination device capable of controlling the irradiation angle according to the present invention,
15 is an exemplary view showing the structure of a PCB which is a constitution of an illumination lamp applied to an LED illumination device capable of controlling a light irradiation angle according to the present invention,
16 is an exemplary view showing a structure of a reflector which is a constitution of an illumination lamp applied to an LED illumination device capable of controlling the irradiation angle according to the present invention,
FIG. 17 is a perspective view of a heat sink and a column connecting portion applied to an LED lighting device capable of controlling the irradiation angle according to the present invention. FIG.

In the present invention, the LED lighting device includes a LED lighting lamp having a hemispherical heat dissipation unit at a rear end thereof, and a heat dissipation plate having a hemispherical installation groove on which the heat dissipation unit is placed, wherein the illumination lamp 100 is arranged in a plurality of rows, The angle of inclination of the illumination light is increased toward the outside, so that light can be radiated over a wide range.
The scope of the present invention is not limited to the embodiments described below, and various modifications may be made by those skilled in the art without departing from the technical scope of the present invention.
Hereinafter, an LED illumination device capable of controlling the irradiation angle according to the present invention will be described in detail with reference to FIGS. 1 to 17 attached hereto.
As shown in FIGS. 1 and 2, the LED lighting device according to the present invention includes a LED lighting lamp 100 and a heat sink 200 on which the LED lighting lamp is installed. The LED illumination device according to the present invention may include a transmission cover 300 transmitting light emitted from the LED illumination lamp 100, a heat radiation cover 400 covering the heat radiation plate 200, And a pillar connecting portion 500 connecting the pillar and the pillar.
2, an LED light source is mounted on the illumination lamp 10 and a heat dissipation unit 110 is provided on the rear end. The heat dissipation unit 110 can discharge heat generated by the LED And a plurality of radiating fins are formed in a hemispherical shape.
A plurality of hemispherical mounting grooves 210 are formed in the heat sink 200 to allow the heat sink 110 to be mounted thereon so that the installation angle of the light 100 can be adjusted to the heat sink 200, The user places the heat dissipation unit 110 in the installation groove 210 in a desired irradiation direction.
In the LED illumination device capable of controlling the irradiation angle according to the present invention, the illumination lamps 100 are arranged in a plurality of rows as shown in FIG. At this time, since the LED has excellent linearity due to the nature of the device, the illumination range is narrow, and in order to compensate for the narrow range, the illumination lamp 100 is disposed so as to increase the inclination angle inclined toward the outer edge.
In detail, it is preferable that the illumination lamp 100 installed in the installation groove 210 formed in the central row of the heat sink 200 is arranged so as not to be inclined at a small inclination toward the edge row, It is preferable that the illumination lamps 100 installed in the installation grooves 210 formed on both edge rows are disposed so as to form the greatest inclination angle toward the outside which is the opposite direction of the center row.
Since the illumination lamp 100 is arranged such that the inclination angle tilting toward the outside increases toward both edge lines, the light can be irradiated over a wide range, so that the illumination between the street lamp and the street lamp is not reflected, .
3 and 4 show that the illumination lamps 100 are arranged in three rows, but the present invention is not limited thereto. Depending on the place where the illumination lamp device capable of controlling the irradiation angle is installed, .
In addition, the mounting groove 210 may be formed with a receiving portion 211 recessed toward the outside as shown in FIG. When the illumination lamp 100 is tilted toward the outside, there is a possibility that the receiving portion 211 may not be able to secure a desired irradiation range due to the occurrence of a jam if there is no space in the installation groove 210. As a result, The lighting lamp 100 is recessed into the heat sink 200 in a tilting direction. The receiving portion 211 may have a curved surface as shown in FIG. 5 or a surface having a predetermined angle depending on the shape of the illumination lamp 100.
As shown in FIG. 6, the heat sink 200 further includes a fixing member 10 for preventing the illumination lamp 100, which is seated in the installation groove 210, from being separated and being firmly coupled, The illumination lamp 10 is brought into contact with the illumination lamp 100 as shown in FIG. 7, and the illumination lamp 100 can be tilted toward the outside by the fixing member 10.
As shown in FIG. 8, the fixing member 10 includes a coupling portion 11 coupled to the heat sink 200 and a coupling portion 11 extending perpendicularly to the coupling portion 11, And a fixing part 12 for preventing the illumination lamp 100 from being separated.
The coupling portion 11 is coupled to a coupling groove formed at one side of the installation groove 210 in which the illumination lamp 100 is installed. At this time, the engaging portion 11 is formed with a screw groove through which a screw is inserted, and the engaging groove is formed with a screw groove capable of screwing, so that the fixing member 10 is firmly engaged with the screw groove However, the present invention is not limited to such a combination method.
The fixing part 12 can be prevented from being separated from the illumination lamp 100. A portion of the fixing part 12 in contact with the illumination lamp 100 is formed to be inclined at an angle corresponding to the angle at which the illumination lamp 100 is installed, As shown in FIG. 9, by providing the fixing member 10 inclined at various angles, a user can set a desired irradiation range.
In the case of an LED illumination device capable of controlling the irradiation angle according to the present invention, the illumination lamp 100 is installed such that the inclination angle of the illumination lamp 100 tilts toward the outer edge, It is preferable that the inclination of the portion contacting the illumination lamp 100 is increased, and the light will be broadly irradiated in a fan shape.
The heat dissipation plate 200 may include a heat dissipation fin unit 220 as shown in FIG. 10 to smoothly discharge heat generated from the illumination light 100 to the outside. The plurality of radiating fins 220 may be uniformly formed on the rear surface of the radiating plate 200. The radiating fin 220 may be formed of a plurality of radiating fins, The thermal efficiency can be improved.
Further, since a separate radiating fin can be further assembled to the radiating fin 220, the radiating fin ring 230 having a plurality of radiating fins in a ring shape is further assembled and coupled to the radiating fin 220, It can have a high heat radiation effect. As shown in FIG. 11, the heat radiating fin ring 230 may have a plurality of through holes 231 formed along the longitudinal direction thereof. The flow of air is generated due to the through hole 231, and a convection phenomenon occurs, so that the heat radiating property is improved.
In addition, a portion directly contacting the radiating fin 220 may be further formed inside the radiating fin ring 230. The radiating fin 230 may be provided with a radiating fin ring 230 ).
The LED illumination device capable of adjusting the irradiation angle according to the present invention may further include a transmission cover 300 coupled to the heat sink 200 to protect the illumination lamp 100 and transmit the light generated from the illumination lamp 100 have. As shown in FIGS. 12 and 13, the transmission cover 300 may further include a lens 310 corresponding to the illumination lamp 100 and formed to be convex toward the outside. Since the lens 310 is provided in the transmission cover 300, the light diffusivity is increased, and the light can be irradiated to a wider range.

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14, the illumination lamp 100 mounted on the heat sink 200 includes a PCB 120 on which a plurality of LEDs that receive power and emit light are mounted, and a PCB 120 coupled to the PCB 120, And a reflector 130 for diffusing light emitted from the reflector 130.

As shown in FIG. 15, the PCB 120 includes a plurality of light emitting LEDs 20 mounted on its surface, and a power supply terminal for supplying power to the LEDs is formed.

The reflector 130 reflects light emitted from the LED through the inner circumferential surface and diffuses and emits the light. The reflector 130 applied to the present invention is radially formed to increase the light diffusion rate.

In this case, the reflector 130 is installed in the middle of the reflector 130, and a lens convexed and refracted by the light emitted from the LED is installed in the reflector 130, and a convex lens capable of maximizing the refractive index of the light is applied . Accordingly, the light emitted from the LED is primarily refracted by the lens, and secondly diffused through the inner circumferential surface of the reflector to maximize the light distribution efficiency, thereby minimizing blind spots where light is not illuminated You can do it.

Although not shown in the drawing, the reflector 130 has a pair of coupling grooves formed therein, and the lens has coupling projections corresponding to the coupling grooves, and the coupling projections are inserted into the coupling grooves Can be combined by a load. At this time, the coupling groove is formed to be upwardly open so that the lens can be easily radially inserted into the reflector 130 having a large space area in a backward direction from the front end thereof.

The coupling protrusion may have a circular shape and may rotate inside the coupling groove. The lens may be installed in the reflector 130 by rotating the coupling protrusion at a predetermined angle in the left- It is. Therefore, when the light is irradiated to a specific region, the lens coupled to the reflector 130 is rotated and disposed in a direction to be irradiated, so that the user can intensively irradiate light to a desired region.

The reflector 130 can be screwed from the outside through the coupling groove, and the screw is firmly attached to the side surface of the coupling projection and firmly fixes the lens, so that the reflector 130 is installed at a specific angle Thereby preventing the installation angle of the lens from being changed.

The washer groove is formed in the same shape as the washer so as not to move the washer which is inserted into the inside of the washer. And a screw thread is formed in the washer through which the screw passes, thereby preventing the screw threading through the engaging groove through the engaging groove from being loosened and fixing the lens more firmly.

On the other hand, the reflector 130 is usually formed in a circular shape, but it is not necessarily limited thereto.

That is, the reflector 130 may have an even polygonal shape as shown in FIG. 16, and the planar plate may be bent to have an even number of polygonal cross-sections so that the reflector 130 is diffused from the LED, The light reflected from the reflective surface is reflected again on the facing surface and is reflected again on the original surface, thereby minimizing light leakage and obtaining a relatively high brightness.

In addition, the reflector 130 is asymmetric so that the LEDs mounted on the PCB are eccentric in the direction of diffusing light. The reflector 130 is somewhat narrow toward the light diffusion center of the LED, It is possible to obtain an artificial asymmetric light irradiation range like a parabola by irradiating a wide range of light with a high light distribution although a somewhat lower brightness toward the light diffusion center.

The PCB 120 and the reflector 130 are connected to each other by a fitting groove in which the fitting protrusions are coupled to each other. It is possible to easily and firmly combine the two.

The PCB 120 may be provided with a ring-shaped intermediate ring for easily applying a sealant to the surface of the PCB 120 having a flat surface. have. The intermediate ring may be formed to have a size that can cover all of the LEDs mounted on the PCB 120, and may be formed to a height at which the applied sealant can not overflow. Accordingly, after the intermediate ring is positioned on the upper surface of the PCB 120 on which the LED is mounted, the sealant can be easily applied.

At least one step may be formed on the lower end of the reflector 130. The step may be formed by extending both sides of the fitting protrusion to a predetermined length. Therefore, when the reflector 130 and the PCB 120, which are placed on the upper surface of the reflector 130, are coupled to each other, a space is formed between the lower end of the reflector 130 and the middle ring due to the step. Is discharged to the spacing space, the heat radiation efficiency is improved.
17, a column connecting part 500 to be coupled with the heat sink 200 is formed in the LED lighting device of the present invention, . &Lt; / RTI > The column connecting portion 500 and the heat sink 200 may be hinged so as to adjust the irradiation angle in the vertical direction.
As described above, according to the present invention, the user can selectively adjust the illuminance area according to the installation condition, and at the same level of illumination as other illuminations, a large amount of reflected light is emitted to the outside, And it is possible to minimize the incidence of incidence of incandescent light due to lack of diffusion of LED.
In addition, since the heat dissipation structure has a high heat radiation efficiency, it is possible to prevent the shortening of the service life and the reduction of the luminance due to the high heat generated in the inside.

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10: fixing member 11:
12: Fixed portion 20: LED
100: illumination lamp 110:
120: PCB 130: Reflector
200: heat sink 210: installation groove
211: accommodating portion 220: heat dissipating fin portion
230: heat sink pin ring 231: through hole
300: transmission cover 310: lens
400: heat dissipation cover 500: holding connection

Claims

And a heat sink 200 having an LED illumination lamp 100 having a hemispherical heat dissipation unit 110 and a hemispherical mounting recess 210 on which the heat dissipation unit 110 is mounted,
The illumination lamps 100 are arranged in a plurality of rows,
The inclined angle of the illumination lamp 100 tilted toward the outside is increased as it goes to both edge lines so that light can be irradiated over a wide range,
The illumination lamp 100 includes a PCB 120 coupled to the heat dissipation unit 110 and mounted with a plurality of LEDs and a reflector 130 coupled to the PCB 120 to diffuse light,
The reflector 130 has an even number of polygonal prisms,
Wherein LEDs mounted on the PCB (120) are asymmetric so as to be eccentric in a direction of diffusing light.

The method according to claim 1,
Further comprising a fixing member (10) for fixing the lamp (100) to the heat sink (200)
The fixing member 10 includes a coupling part 11 coupled to the heat sink 200 and a fixing part 10 extending perpendicularly to the coupling part 11 to prevent separation of the illumination lamp 100 in contact with the lighting lamp 100. [ And a fixing portion 12,
Wherein the fixing part (12) is formed so as to increase the inclination of a portion of the fixing part (12) which is in contact with the illumination lamp (100) toward both edges, so that the illumination light can be irradiated in a sector shape.

The method according to claim 1,
Wherein the mounting recess (210) is formed with a receiving portion (211) recessed outwardly to receive the inclined illumination lamp (100).

The method according to claim 1,
The heat dissipation plate 200 includes a plurality of heat dissipation fin portions 220 on its rear surface,
Wherein a radiating fin ring (230) having a plurality of radiating fins in a ring shape is further assembled to the radiating fins (220) to improve the radiating efficiency.

5. The method of claim 4,
Wherein a plurality of through holes (231) are formed in the heat dissipating fin ring (230) along the longitudinal direction to improve heat radiation due to the convection phenomenon.

The method according to claim 1,
And a transmission cover (300) coupled to the heat sink (200) and transmitting light therethrough,
Wherein the transmissive cover (300) is provided with a lens (310) corresponding to the illuminating lamp (100) and convex toward the outside, thereby increasing the light diffusing ratio.

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