KR101103816B1 - LED Lighting Apparatus - Google Patents

Abstract

The present invention relates to an LED lighting device that can implement an LED light having high heat emission efficiency and advantageous for light distribution while maintaining the original shape of a post top street light.
The present invention is connected to the upper end of the holding member; An upper reflection shade disposed at intervals above the connection member by a support rod installed on the connection member; A transparent or translucent cylindrical cover disposed between the upper reflector and the connection member; A glare blocking member disposed around the cover; A plurality of LED modules disposed inside the cover; And a heat sink in which a plurality of LED modules are installed on a lower surface and an outer circumference is exposed to the outside across the cover to generate heat.

Description

LED lighting device {LED Lighting Apparatus}

The present invention relates to an LED lighting apparatus, and more particularly, to a LED lighting apparatus that can implement an LED light having high heat emission efficiency and favorable for light distribution while maintaining the circular shape of a post top street lamp.

Generally, the post top type street light is equipped with incandescent lamps, metal halides, HPS, etc. inside the glass tube, and separately installs a glare ring, louver, or frosted glass tube outside the glass tube. The treatment prevented Glare by covering the light source of the lamp.

Incandescent lamps, metal halides, etc., which are used as light sources in the conventional post top street lamps, have low light efficiency compared to LEDs, and nowadays, LED post top street lamps having been replaced with LEDs have been developed. Such LED post top street lights have a form in which LEDs mounted on polygonal metal PCBs are directly illuminated. In this case, the heat generated from the LED is accumulated inside the polygonal metal PCB on which the LED is mounted, and this heat is difficult to discharge to the upper side of the polygonal PCB. Therefore, the light distribution illuminating a large area can be solved, but the failure or efficiency of the LED may be caused by the heat generation problem.

On the other hand, in order to improve the heat problem, the LED is installed in the head portion of the post-top street light to produce a slight advantage in heat dissipation, but in this case, the light of the LED is directed toward only the lower direction, as well as disadvantageous to implement the desired light distribution There was a problem of falling to light efficiency. This problem can be solved through light distribution using an asymmetric lens, but this also reduces the efficiency due to the large amount of light emitted to the lower part.

An object of the present invention is to provide a post-top LED lighting device that can implement the LED lighting having high heat emission efficiency and advantageous for light distribution while maintaining the circular shape of the post top street lamp.

Another object of the present invention is to provide an LED lighting device that can perform a suitable light distribution according to the place to be illuminated, such as bicycle roads, automobile roads, parks, parking lots, etc. through various arrangements of LED lighting blocks having various tilting angles.

Still another object of the present invention is to provide an LED lighting device having a heat dissipation structure capable of effectively dissipating heat as the LED lighting block is installed in direct contact with an externally exposed heat sink.

Still another object of the present invention is to provide an LED lighting device that can minimize light loss and glare by employing a Glare Ring member having a cutoff angle.

Still another object of the present invention is to provide an LED lighting device that can produce various designs of LED street lights by implementing emotional lighting.

In order to achieve the above object, the present invention is a connection member disposed on the upper end; An upper reflection shade disposed at intervals above the connection member by a support rod installed on the connection member; A transparent or translucent cylindrical cover disposed between the upper reflector and the connection member; A glare blocking member disposed around the cover; A plurality of LED modules disposed inside the cover; And a heat sink having a plurality of LED modules installed on a lower surface thereof and having an outer circumference thereof exposed to the outside across the cover.

The plurality of LED modules, the plurality of LEDs; And a block having an inclined surface on which the LED is installed, in order to implement a desired light distribution curve through the plurality of LED modules, the inclined surface of each block has a preset tilt angle, and each block is It is preferable to be oriented in the arrangement direction corresponding to the light distribution curve to be fixed to the bottom surface of the heat sink.

In this case, it is preferable that the maximum point at which the tilt angle and the cutoff angle of the LED of the LED module coincide with the lower end of the glare blocking member.

The LED module is preferably symmetrically disposed based on the center of the heat sink when illuminating a narrow place such as a road or sidewalk, and the LED module is preferably arranged radially when illuminating a large place such as a parking lot. Do.

The heat sink may include a base on a flat plate on which the plurality of LED modules are installed. In this case, the heat sink may include a plurality of heat dissipation fins protruding radially at intervals on the upper surface, and the plurality of heat dissipation fins may be integrally formed with or detachably coupled to the base plate.

The cylindrical cover may be formed of an upper cover and a lower cover respectively disposed above and below the heat sink.

The glare blocking member may include a reflection plate having a curvature therein. In addition, the glare blocking member may be formed with a plurality of light passing holes for the emotional lighting. In this case, the plurality of light passing holes are preferably smaller in diameter as they go from the top to the light passing holes disposed downward.

In addition, the glare blocking member may be made of an acrylic material having a translucent or various colors for the emotional lighting.

A plurality of auxiliary LEDs for emotional lighting may be provided on the upper surface of the heat sink.

In this case, a wiring conduit through which the electric wire is inserted to supply power to the LED module and the auxiliary LED through the heat sink; A first reflector coupled to a bottom of the conduit to reflect light emitted from the LED of the LED module; And a second reflector coupled to an upper end of the conduit to reflect light emitted from the auxiliary LED.

According to another feature of the invention, the present invention is a connection member; An upper reflection shade disposed at intervals above the connection member by a support rod installed on the connection member; A cylindrical upper and lower cover disposed between the upper reflector and the connection member; A plurality of LED modules disposed inside the lower cover; And a heat sink having a plurality of LED modules installed on a lower surface thereof and an outer circumferential portion of which is exposed to the outside across the upper cover and the lower cover.

As described above, in the present invention, various light distributions can be realized through a plurality of LED modules installed in various arrangements on the lower surface of the heat sink, and the heat sink is disposed on the glare blocking member to maximize the circular shape of the post top street lamp. There is an advantage to effectively dissipate the heat generated by the LED module while maintaining.

In addition, the present invention by forming a plurality of light passing holes in the glare blocking member, or by making the opaque or acrylic having a variety of colors, it is possible to implement the emotional lighting other than direct lighting. Such emotional lighting can be produced in various ways through a plurality of auxiliary LEDs disposed on the upper side of the heat sink.

In addition, the present invention employs a Glare Ring member utilizing a cutoff angle to minimize light loss and glare.

In the present invention, by installing a reflector (Reflector) on the opposite surface of the reflection shade and the connecting member, respectively, the light directed upward and downward can be improved to improve efficiency.

In addition, the present invention is designed so as to not interfere with the light distribution as possible by placing the support rod in the front and rear of the luminaire, and to be installed on any size of the post according to the replacement of the connecting member (Bushing) connected to the pole (Pole) Can be.

1 is a perspective view showing an LED lighting apparatus according to an embodiment of the present invention,
2 is a cross-sectional view taken along the line II-II shown in FIG. 1;
3 is a perspective view showing another example of the glare blocking member;
4 is a perspective view showing a heat sink by removing the upper reflector;
5 is a cross-sectional view taken along the line VV of FIG. 1;
6 is a schematic view showing a light distribution curve represented by the LED module arranged as shown in FIG.
7 is a view showing another arrangement example of the LED module,
FIG. 8 is a schematic diagram illustrating a light distribution curve represented by an LED module arranged as shown in FIG. 7.

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

1 and 2, the LED lighting device 100 according to an embodiment of the present invention includes a connecting member 10, an upper reflector 30, and first and second covers 51 and 53. , A glare ring member 60, a heat sink 70, and a plurality of LED modules 90.

The connecting member 10 is disposed on the upper end of the support 1, the power driver 11 and the AC DC converter 13 is installed inside. The power driver 11 is electrically connected to the LED module 90 via a wire 12, and the AC / DC converter 13 preferably uses a switching mode power supply (SMPS).

In addition, the connection member 10 is a first connection member connected to the pole (Pole) 1, and coupled to the upper side of the first connection member, the power driver 11 and the AC DC converter 13 in the inside thereof. It can be configured to be separated into a second connection member having a fixing portion (10a, 10b) is inserted and fixed to the lower end of the pair of support rods (11a, 11b). In this case, the first connecting member (Bushing) can be installed in any size of struts by replacing with a connecting member (Bushing) corresponding to the size (that is, the diameter) of the strut on which the lighting device is installed.

In addition, the connection member 10 is provided with fixing parts (10a, 10b) in which the lower ends of the pair of support rods (11a, 11b) is inserted and fixed on both sides. The pair of support rods 11a and 11b support the heat sink 70 as well as the upper reflection shade 30.

In addition, to prevent the light emitted from the LEDs 95 of the LED module 90 from being interfered by the pair of support rods 11a and 11b so that shadows are not generated by the pair of support rods 11a and 11b. It is preferable to position the pair of support rods 11a and 11b at the point away from the direct illumination position (see FIG. 5).

The upper reflector 30 protects the plurality of LED modules 90 and the auxiliary LEDs 97 from rain or snow and reflects light toward the sky downward to block light pollution and increase light efficiency.

The pair of support rods 11a and 11b are disposed above the connection member 10 at predetermined intervals. The upper reflector 30 reflects light emitted from the auxiliary LED 97 to be described later.

The first and second covers 51 and 53 are made of glass or acrylic of translucent or transparent material. The first and second covers 51 and 53 may have a cylindrical shape, and a cross section thereof may be formed of any one of a polygonal shape such as a circle, an ellipse, a triangle, and a rectangle. In the present embodiment, the first and second covers 51 and 53 have a cylindrical shape (see FIG. 5) as an example.

The first cover 51 is disposed between the connection member 10 and the heat sink 70, and the second cover 53 is disposed between the heat sink 70 and the upper reflector 30. Accordingly, the heat sink 70 is disposed to cross the first and second covers 51 and 53.

The glare blocking member 60 is disposed around the first cover 51 in a substantially cylindrical shape to prevent glare from being caused by the light of the LED 95 irradiated directly to the driver and the pedestrian, and heatsink It is assembled detachably to the lower surface of 70.

In this case, the glare blocking member 60 of the LED 95 installed in the LED module 90 to be described later, as shown in Figure 2, to maximize the anti-glare efficiency while minimizing the restriction of the amount of light emitted from the LED (95). It is preferable that the point where the tilt line L1 and the cut off line L2 intersect each other coincide with the lower end of the glare blocking member 60. Here, the tilt angle represents the downward angle at which the LED 95 is set from the horizontal to the ground, and the cutoff angle represents the viewing angle. For example, the angle of the tilt line L1 is 60 degrees from the vertical line, and the angle of the cutoff line L2 is 70 degrees from the vertical line.

In addition, the glare blocking member 60 includes a curved reflective plate 61 having a predetermined curvature therein, and is blocked by the glare blocking member 60 among the light emitted from the LED 95 of the LED module 90. The light efficiency can be improved by reflecting the light to be made.

In addition, the glare blocking member 60, as shown in Figure 3, of course, it is also possible to form a plurality of light passing holes 63, in this case the plurality of light passing holes 63 is the upper for preventing glare In order to form a smaller through diameter toward the light passing hole disposed in the lower portion. The light leaking through the plurality of light passing holes 63 may induce emotional lighting by enhancing the design aspect of the LED lighting device 100 itself and at the same time increase the light efficiency.

In addition, the glare blocking member 60 may be formed of an acrylic material having a translucent or various colors to give a soft feeling to the design side and light distribution effect. In this case, the curved reflector 61 installed inside the glare blocking member 60 is not installed.

4 and 5, the heat sink 70 has a base plate 71 in which a plurality of LED modules 90 are fastened and fixed by a piece to a bottom thereof, and radially spaced apart from an upper surface of the base plate 71. It includes a plurality of heat dissipation fins 73 disposed. In this case, the base plate 71 and the plurality of heat dissipation fins 73 may be integrally formed or manufactured to be separated from each other.

The base plate 71 is formed with a flat bottom surface to facilitate installation of the plurality of LED modules 90. The plurality of heat dissipation fins 73 are radially arranged at predetermined intervals in consideration of cooling efficiency, and the upper side is provided with an annular groove 70a in which a lower end of the second cover 53 is inserted and fixed.

The wiring tube 80 penetrates through the center of the base plate 71 and passes the power driver 11 and the SMPS 13 disposed inside the connection member 10 to the LEDs of the LED module 90. 95 and serves as a passage for the wires 12 that interconnect the auxiliary LED (97).

The wiring conduit 80 may have various colors in consideration of the fact that it can be visually confirmed from the outside through the first cover 51, thereby enabling various designs of the post top street light.

In addition, the wiring tube 80 is inserted into the first reflector 81, the upper end of which is fixed to the bottom of the upper reflector 30, and the lower end of the wiring conduit 80, which is fixed to the upper surface of the connecting member 10. Each is fixed.

The first reflector 81 reflects light emitted downward from the LED module 90 so as to be directed toward a road or a sidewalk.

The second reflector 83 reflects light emitted upward from the plurality of auxiliary LEDs 97 disposed on the upper surface of the base plate 71. In this case, the light reflected by the second reflector 83 may serve as an emotional light rather than directly illuminating a road or sidewalk. The plurality of auxiliary LEDs 97 may produce various feelings by employing a white light LED or a color LED having a light color of a warm feeling.

Referring to FIG. 5, the plurality of LED modules 90 each include a block 91 having a horizontal contact surface 94 and an inclined surface 93 that are mounted in contact with the base plate 71 of the heat sink 70, respectively. A plurality of LEDs 95 are coupled to the inclined surface 93 of the block 91. The inclined surface 93 is formed to be inclined at an angle corresponding to the tilt angle at the position where each block 91 is disposed.

In this case, when the arrangement direction of each LED module 90 is to implement a light distribution curve of type II to IV suitable for illuminating a bicycle road and an automobile road as shown in FIG. 6, each LED module 90a, 90b, 90c ) Is set to be symmetric with respect to the center line (C) and the orient angles (θ1, θ2, θ3) of each LED module 90a, 90b, 90c are respectively θ1 = 30 ° -50 °, θ2 = It can carry out by setting to 60 degrees-80 degrees, (theta) 3 = 80 degrees-90 degrees. (Refer FIG. 5).

On the other hand, unlike the narrow and long roads such as bicycle roads or automobile roads as shown in Figure 8 when implementing a light distribution curve of Type V suitable for lighting a large space such as a park, parking lot, etc., each of the LED module 90 It is preferable to arrange radially as shown in FIG.

As described above, the present invention uses a plurality of LED blocks 90 on the lower surface of the base plate 71, and also uses a block 91 having inclined surfaces corresponding to various tilt angles. It is possible to produce a light distribution curve suitable for the As such, the present invention can maximize light efficiency while optimizing light distribution by concentrating lighting only where necessary.

As described above, in the present invention, various light distribution curves may be realized through the plurality of LED modules 90 installed in various arrangements on the bottom surface of the heat sink 70, and the heat is heated on the glare blocking member 60. By disposing the sink 70, the heat generated from the LED module 90 may be effectively released while maintaining the circular shape of the post top street lamp.

In addition, the present invention employs a Glare Ring member 60 that utilizes a Cutoff Angle to minimize glare loss and glare, but also has a curved reflective plate 61 therein to provide a Glare Block member 60. By reflecting light blocked by), the light efficiency can be improved.

In addition, the present invention, by forming a plurality of light passing holes in the glare blocking member 60, or made of acrylic having an opaque or a variety of colors, it is possible to implement the emotional lighting in addition to direct lighting. Such emotional lighting can be produced in various ways through a plurality of auxiliary LEDs 97 disposed above the heat sink.

In the above description of the embodiment, the LED lighting device is applied to the post-top structure of the street lamp is installed directly on the top of the support, but instead of the top of the support used in such a way that the arms extending from the support or the support to the upper reflector It is also applicable to being.

The present invention can be applied to the LED street light and the security of the post-top structure that can perform a suitable light distribution according to the places to be illuminated, such as bicycle roads, automobile roads, parks, parking lots, etc. through various arrangements of LED lighting blocks having various tilting angles. .

10: connecting member 11: power driver
12: wire 13: ac dc inverter
30: upper reflection shade 51: first cover
53: second cover 60: glare blocking member
61: curved reflector 70: heat sink
71: base plate 73: heat dissipation fin
80: wiring tube 81: first reflector
83: second reflector 90: LED module
91: block 93: slope
94: horizontal contact surface 95: LED
97: Auxiliary LED 1: Shoring
100: lighting device

Claims (18)

A connection member disposed on the upper end of the support;
An upper reflection shade disposed at intervals above the connection member by a support rod installed on the connection member;
A transparent or translucent cylindrical cover disposed between the upper reflector and the connection member;
A glare blocking member disposed around the cover;
A plurality of LED modules disposed inside the cover; And
And a heat sink having a plurality of LED modules installed on a lower surface thereof and having an outer circumference portion exposed to the outside across the cover to generate heat. The method of claim 1, wherein the plurality of LED modules comprises: a plurality of LEDs; And a block having an inclined surface on which the LED is installed,
In order to implement a desired light distribution curve through the plurality of LED modules, the inclined surface of each block has a preset tilt angle, and each block is oriented in an arrangement direction corresponding to the light distribution curve so that the heat sink bottom surface LED lighting apparatus, characterized in that fixed to. The LED lighting apparatus of claim 2, wherein a lower end of the glare blocking member is set corresponding to a point at which a tilt angle and a cutoff angle of the LED of the LED module coincide with each other. The LED lighting apparatus of claim 2 or 3, wherein the LED module is disposed symmetrically with respect to the center of the heat sink. The LED lighting device according to claim 2 or 3, wherein the LED module is arranged radially. The LED illuminating device according to claim 1, wherein the heat sink comprises a base plate on a flat plate on which the plurality of LED modules are installed. The LED lighting apparatus of claim 6, wherein the heat sink further comprises a plurality of heat dissipation fins protruding radially from the top surface at intervals. The LED lighting apparatus of claim 1, wherein the cylindrical cover comprises an upper cover and a lower cover respectively disposed above and below the heat sink. The LED lighting device of claim 1, further comprising a reflector installed inside the glare blocking member. The LED lighting apparatus of claim 1, wherein the glare blocking member is provided with a plurality of light passing holes for emotional lighting. The LED lighting apparatus of claim 1, wherein the glare blocking member is made of a translucent or acrylic material having various colors for sensitized lighting. The LED lighting apparatus of claim 1, further comprising a plurality of auxiliary LEDs for emotional lighting installed on an upper surface of the heat sink. 13. The apparatus of claim 12, further comprising: a wiring tube installed at a center of the cylindrical cover through the heat sink to insert an electric wire for supplying power to the LED;
A first reflector coupled to a bottom of the conduit to reflect light emitted from the LED of the LED module; And
And a second reflector coupled to an upper end of the conduit to reflect light emitted from the auxiliary LED. Connecting member;
An upper reflection shade disposed at intervals above the connection member by a support rod installed on the connection member;
A cylindrical upper and lower cover disposed between the upper reflector and the connection member;
A plurality of LED modules disposed inside the lower cover; And
And a heat sink having a plurality of LED modules installed on a lower surface thereof and having an outer circumferential portion exposed to the outside across the upper cover and the lower cover. The LED lighting apparatus of claim 14, further comprising a glare blocking member disposed around the cover to prevent a glare phenomenon. The LED lighting apparatus of claim 15, wherein a lower end of the glare blocking member is set corresponding to a point at which a tilt angle and a cutoff angle of the LED of the LED module coincide with each other. The method of claim 14, wherein the plurality of LED modules,
Multiple LEDs; And
And a block having an inclined surface on which the LED is installed and a horizontal contact surface mounted on a base plate of a heat sink. 15. The apparatus of claim 14, further comprising: a wiring tube installed at the center of the cover through the heat sink and through which an electric wire for supplying power to the LED passes; And
The LED lighting device further comprises a first reflector coupled to the bottom of the conduit to reflect light emitted from the LED of the LED module.

Images